Patent Application
20120247558
1. Field of the Invention
The present invention relates to a transmittance enhancement film, particularly a transmittance enhancement film for use in a solar cell module.
2. Description of the Prior Art
Due to an increasingly concern of serious energy shortage and environmental protection issues such as greenhouse effect, many nations have been actively developing various alternative energy sources, among which solar power has attracted the most attention among the industries. As shown in
When sunlight in the atmosphere enters the solar cell module through the transparent frontsheet, photoelectric conversion occurs in the solar cell unit, so as to convert the light energy into electric energy to be outputted. However, the power generation efficiency of currently known solar cell module has been undesirable. For example, the power generation efficiency of the mostly widely used mono- or poly-crystalline silicon solar cell assembly is about 15%. In other words, only 15% of sunlight can be converted into useful electric energy, and the remaining 85% of sunlight is either wasted or converted into useless heat energy.
How to improve power generation efficiency of solar cell module is always one of the foci of research within the industries. Presently, one of the developed technologies is to track the optimal sunlight position by using an electronic tracking device, so as to adjust the angle of a light incident surface of a solar cell module to maintain the optimal light receiving efficiency. However, the electronic tracking device is a complex structure at a high cost, and requires regular maintenance, such that the total cost of a solar power module with such electronic tracking device would greatly increased. In addition, due to the use of the electronic tracking device, the overall mass of the solar cell module would substantially increase, making it inconvenient during installation.
A. W. Bett et al. discloses a solar cell module including several light concentrating units to increase the light concentration effect, and the main elements in each light concentrating unit are a Fresnel lens, a glass substrate with a heat sink, and a frame. However, since the elements are all made of glass, the totaled weight is substantial, making it inconvenient to be assembled.
In addition, another conventional technology is to process the glass frontsheet, by forming an embossed glass having a regular pattern, so as to improve light transmittance. However, this technology requires precise manufacturing technology and involves high cost, making it not an ideal technology to be adopted for mass production.
In order to solve the above problems, the present invention is directed to a film which is convenient for preparation and assembly, and can improve the utilization of the solar light.
In order to achieve the above and other objectives, the present invention provides a transmittance enhancement film, which comprises a substrate and a coating layer on the substrate, wherein the coating layer comprises a plurality of organic particles and a binder, the organic particles have a refractive index of less than 1.5, and the refractive index ratio of the organic particles to the binder is in the range from 0.95 to 1.05.
The present invention further provides a solar cell module, characterized by containing the above-mentioned transmittance enhancement film.
The invention will be described according to the appended drawings in which:
The substrate useful for the transmittance enhancement film of the present invention may be any transparent substrate known to persons of ordinary skill in the art, for example, glass or plastic. The plastic substrate is not particularly limited, and includes, for example, but is not limited to, polyester resin, such as, polyethylene terephthalate (PET) or polyethylene naphthalate (PEN); polymethacrylate resin, such as, polymethyl methacrylate (PMMA); polyimide resin; polystyrene resin; polycycloolefin resin; polyolefin resin; polycarbonate resin; polyurethane resin; triacetate cellulose (TAC); or a mixture thereof, with PET, PMMA, polycycloolefin resin, or a mixture thereof being preferred, and PET being more preferred. The thickness of the substrate is not particularly limited, and is generally in the range from about 5 μm to about 300 μm.
The total light transmittance, the diffuse light transmittance, and the parallel light transmittance (Pt) of an optical product may be expressed as Tt=Td+Pt. The transmittance enhancement film of the present invention has the characteristics of high total light transmittance and low parallel light transmittance. The transmittance enhancement film of the present invention has a total light transmittance of greater than 93% as measured according to the ASTM E903-96 standard method, and a parallel light transmittance of less than 40% as measured according to the JIS K7136 standard method, and preferably has a total light transmittance of greater than 95% as measured according to the ASTM E903-96 standard method, and a parallel light transmittance of less than 30% as measured according to the JIS K7136 standard method.
Generally, after the solar light enters the solar cell module, a part of the light is reflected and thus cannot effectively reach the solar cell unit, so that the power generation efficiency of the solar cell module is adversely influenced.
As shown in
Generally, the increase in the total light transmittance caused by such a transmittance enhancement film is referred to as “gain” of the transmittance enhancement film. The gain of the transmittance enhancement film refers to a difference between “the total light transmittance tested after the film is disposed” to a sample to be tested (for example, a glass or plastic substrate) and “the total light transmittance tested before the film is disposed” to the sample to be tested. According to a preferred embodiment of the present invention, the “gain” of transmittance enhancement film of the present invention may be up to 2% or more of the total light transmittance. In other words, the transmittance enhancement film of the present invention can increase the total light transmittance of the sample to be tested by 2% or more.
The transmittance enhancement film of the present invention has convex-concave microstructures, which can be prepared integrally with the substrate by, for example, pad printing, hot embossing, transferring, injection, or biaxial stretching; or prepared by processing on a substrate by any conventional method, such as, coating, spraying, and atomizing. For example, a coating composition containing organic particles and a binder is coated on a surface of a substrate, to form a coating layer having a microstructure. The species of the substrate are as described above. The thickness of the coating layer is not particularly limited, and is generally in the range from about 1 micrometer (μm) to about 50 μm depending on the size of the microstructure. The coating layer can be applied onto the light incident surface, the light emitting surface, or both the light incident surface and the light emitting surface, and preferably coated on either the light incident surface or the light emitting surface of the transparent substrate.
According to an embodiment of the present invention, the coating composition containing the organic particles and the binder is coated on the substrate by a coating method, to prepare the transmittance enhancement film of the present invention. Suitable coating methods are known to persons of ordinary skill in the art, such as, knife coating, roller coating, micro gravure coating, flow coating, dip coating, spray coating, and curtain coating, or a combination thereof. A preferred coating method is roller coating.
The organic particles useful in the present invention are, for example, but not limited to, poly(meth)acrylate resin, polyurethane resin, silicone resin, or a mixture thereof, preferably poly(meth)acrylate resin or silicone resin, and more preferably silicone resin.
The binder useful in the present invention is, for example, but not limited to, (meth)acrylic resin, silicone resin, polyamide resin, epoxy resin, fluorocarbon resin, polyimide resin, polyurethane resin, alkyd resin, polyester resin, or a mixture thereof, and preferably fluorocarbon resin due to its good weather resistance.
The fluorocarbon resin useful in the present invention includes a copolymer of a fluoroolefin monomer and an alkyl vinyl ether monomer.
The above-mentioned fluoroolefin monomer is well known to persons of ordinary skill in the art, which can be, for example, but is not limited to, vinyl fluoride, vinylidene fluoride, trifluorochloroethylene, tetrafluoroethylene, hexafluoropropylene, or a mixture thereof, with trifluorochloroethylene being preferred.
The above-mentioned alkyl vinyl ether monomer is not particularly limited, and can be selected from the group consisting of a linear alkyl vinyl ether monomer, a branched alkyl vinyl ether monomer, a cyclic alkyl vinyl ether monomer, a hydroxyalkyl vinyl ether monomer, and a mixture thereof. Preferably, the alkyl in the alkyl vinyl ether is a C2-C11 alkyl.
According to the present invention, the shape of the organic particles is not particularly limited, and can be, for example, spherical, ellipsoidal, or irregular in shape, and preferably spherical. The mean particle size of the organic particles is not particularly limited, and is generally in the range from about 0.5 micron (nm) to about 30 μm, preferably from about 0.5 μm to about 15 μm. According to an embodiment of the present invention, the organic particles have a mean particle size in the range from about 0.5 μm to about 9.0 μm.
According to the present invention, the content (x) of the organic particles is about 40 to about 200 parts by weight based on 100 parts by weight of the solids content of the binder.
According to the present invention, a photo initiator or any additives well known to persons of ordinary skill in the art, including, for example, but not limited to, a leveling agent, a stabilizer, a curing agent, a wetting agent, a fluorescent brightener or a UV absorber, can be added to the coating composition.
The transmittance enhancement film of the present invention is prepared by applying a coating composition containing a plurality of organic particles and a binder onto a transparent substrate to form a resin coating layer. In order to achieve the effect on improving the total light transmittance, the organic particles used in the present invention must have a refractive index of less than 1.5, and the refractive index ratio of the organic particles to the binder is in the range from 0.95 to 1.05. If the refractive index ratio of the organic particles to the binder is less than 0.95 or greater than 1.05, or the refractive index of the organic particles is greater than 1.5, a large amount of reflected light will be generated when the light is incident on the coating layer, thereby reducing the transmittance of the light.
The thickness of the coating layer is as described hereinbefore. However, according to the present invention, the thickness of the coating layer may be selected after the coating composition is selected, so as to obtain a transmittance enhancement film that has a better total light transmittance. According to an embodiment of the present invention, when the content (x) of the organic particles is 40 parts by weight≦x<150 parts by weight based on 100 parts by weight of the solids content of the binder, the thickness (y) of the coating layer is preferably selected to be greater than 20 μm. In another preferred embodiment of the present invention, when the content (x) of the organic particles is 150 parts by weight≦x≦200 parts by weight based on 100 parts by weight of the solids content of the binder, the thickness (y) of the coating layer is preferably selected to be less than 7 μm.
The transmittance enhancement film of the present invention has an optical property of an increase in the total light transmittance by 2% or more, and is applicable in any module requiring an increase in the total light transmittance, such as, a glass curtain of a building or garden class, so as to improve the light utilization. According to an embodiment of the present invention, the module design of the solar cell module does not need to be changed, and the transmittance enhancement film of the present invention may be applied in a solar cell module by any manner known to persons of ordinary skill in the art, for example, by directly coating the coating composition onto an element (for example, a frontsheet or an encapsulant) of a solar cell module to form a transmittance enhancement film; or the transmittance enhancement film of the present invention may be directly may be directly laminated and attached onto the transparent frontsheet or the encapsulant layer. When entering the transmittance enhancement film, the light contacts the organic particles contained in the coating layer, and a light scattering phenomenon occurs, such that total reflection of the light occurs in the cell element, and the light travels in the direction towards the cell element again, and is absorbed and utilized by the cell element, thereby improving the power generation effect.
Hereinafter, an embodiment of the transmittance enhancement film of the present invention applied in a solar cell module is further described with reference to the accompanying drawings, which are not intended to limit the scope of the present invention. Any modifications and changes that can be easily made by persons of ordinary skill in the art shall fall within the scope of the disclosure of this specification.
According to another implementation aspect of the present invention, the transmittance enhancement film of the present invention can be used in the solar cell module in place of the transparent frontsheet. In this aspect, the coating layer can be located on the light incident surface or light emitting surface of the transmittance enhancement film.
The present invention further provides a solar cell module characterized by containing the transmittance enhancement film of the present invention.
In addition, the present invention provides a coating composition useful in the enhancement of light transmittance, which comprises a plurality of organic particles and a binder, wherein the organic particles have a refractive index of less than 1.5 and the refractive index ratio of the organic particles to the binder is in the range from 0.95 to 1.05. Preferably, the organic particles have a mean particle size in the range from 0.5 μm to 9.0 μm. The species and amounts of the organic particles and the binder are as described above.
The following examples are used to further illustrate the present invention, but not intended to limit the scope of the present invention. Any modifications or alterations that can be easily accomplished by persons skilled in the art fall within the scope of the disclosure of the specification and the appended claims.
A tempered glass plate having a thickness of 3.2 mm (Sunmax™, protective glass, Asahi Glass Co. Ltd.).
A polyethylene terephthalate (PET) film having a thickness of 250 μm (CH885, NAN YA Plastics Corporation).
29.56 grams of an epoxy acrylate resin (SUP-560, provided by Shin-A
Company, with a solids content of 100% and a refractive index of 1.57) were added into a plastic bottle, then 40 grams of a solvent (butyl acetate) and 29.56 grams of organic particles (Tospearl 145A, provided by Momentive Company, silicone resin solid spherical particles with a mean particle size of 4.5 μm and a refractive index of 1.43) were sequentially added under high speed stirring, and finally 0.88 grams of a photo-initiator (Irgacure 184, provided by Ciba Company, with a solids content of about 100%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #40, dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 30 μm was obtained.
29.56 grams of an epoxy acrylate resin (SUP-560, provided by Shin-A Company, with a solids content of 100% and a refractive index of 1.57) were added into a plastic bottle, then 40 grams of a solvent (butyl acetate) and 29.56 grams of organic particles (SX-500H, provided by Soken Company, polystyrene resin solid spherical particles with a mean particle size of 5 μm and a refractive index of 1.59) were sequentially added under high speed stirring, and finally 0.88 grams of a photo-initiator (Irgacure 184, provided by Ciba Company, with a solids content of about 100%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #40, dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 30 μm was obtained.
53.2 grams of an acrylate resin (ETERAC 7363-TS-50, provided by Eternal Chemical Co. Ltd., an acrylate copolymer resin with a solids content of 50% and a refractive index of 1.49) were added into a plastic bottle, then 11.13 grams of a solvent (butyl acetate) and 26.6 grams of organic particles (SX-500H, provided by Soken Company, polystyrene resin solid spherical particles with a mean particle size of 5 μm and a refractive index of 1.59) were sequentially added under high speed stirring, and finally 9.07 grams of a curing agent (Desmodur 3390, provided by Bayer Corporation, an isocyanate curing agent with a solids content of about 75%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #40 and dried for 2 minutes at 120° C. Finally, a coating layer having a thickness of about 30 μm was obtained.
53.2 grams of a fluorocarbon resin (Eterflon 4101-50, provided by Eternal Chemical Co. Ltd., a trifluorochloroethylene and alkyl vinyl ether copolymer resin with a solids content of 50% and a refractive index of 1.47) were added into a plastic bottle, then 11.13 grams of a solvent (butyl acetate) and 26.6 grams of organic particles (SX-500H, provided by Soken Company, polystyrene resin solid spherical particles with a mean particle size of 5 μm and a refractive index of 1.59) were sequentially added under high speed stirring, and finally 9.07 grams of a curing agent (Desmodur 3390, provided by Bayer Corporation, an isocyanate curing agent with a solids content of about 75%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #40 and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 30 μm was obtained.
29.56 grams of an epoxy acrylate resin (SUP-560, provided by Shin-A Company, with a solids content of 100% and a refractive index of 1.57) were added into a plastic bottle, then 40 grams of a solvent (butyl acetate) and 29.56 grams of organic particles (SSX-105, provided by Sekisui Company, polymethacrylate resin solid spherical particles with a mean particle size of 5 μm and a refractive index of 1.49) were sequentially added under high speed stirring, and finally 0.88 grams of a photo-initiator (Irgacure 184, provided by Ciba Company, with a solids content of about 100%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #40, dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 30 μm was obtained.
53.2 grams of an acrylate resin (ETERAC 7363-TS-50, provided by Eternal Chemical Co. Ltd., an acrylate copolymer resin with a solids content of 50% and a refractive index of 1.49) were added into a plastic bottle, then 11.13 grams of a solvent (butyl acetate) and 26.6 grams of organic particles (Tospearl 145A, provided by Momentive Company, silicone resin solid spherical particles with a mean particle size of 4.5 μm and a refractive index of 1.43) were sequentially added under high speed stirring, and finally 9.07 grams of a curing agent (Desmodur 3390, provided by Bayer Corporation, an isocyanate curing agent with a solids content of about 75%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #40 and dried for 2 minutes at 120° C. Finally, a coating layer having a thickness of about 30 μm was obtained.
53.2 grams of a fluorocarbon resin (Eterflon 4101-50, provided by Eternal Chemical Co. Ltd., a trifluorochloroethylene and alkyl vinyl ether copolymer resin with a solids content of 50% and a refractive index of 1.47) were added into a plastic bottle, then 11.13 grams of a solvent (butyl acetate) and 26.6 grams of organic particles (Tospearl 145 A, provided by Momentive Company, silicone resin solid spherical particles with a mean particle size of 4.5 μm and a refractive index of 1.43) were sequentially added under high speed stirring, and finally 9.07 grams of a curing agent (Desmodur 3390, provided by Bayer Corporation, an isocyanate curing agent with a solids content of about 75%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #40 and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 30 μm was obtained.
53.2 grams of a fluorocarbon resin (Eterflon 4101-50, provided by Eternal Chemical Co. Ltd., a trifluorochloroethylene and alkyl vinyl ether copolymer resin with a solids content of 50% and a refractive index of 1.47) were added into a plastic bottle, then 11.13 grams of a solvent (butyl acetate) and 26.6 grams of organic particles (SSX-105, provided by Sekisui Company, polymethacrylate resin solid spherical particles with a mean particle size of 5 μm and a refractive index of 1.49) were sequentially added under high speed stirring, and finally 9.07 grams of a curing agent (Desmodur 3390, provided by Bayer Corporation, an isocyanate curing agent with a solids content of about 75%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #40 and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 30 μm was obtained.
29.56 grams of an acrylate resin (a mixture of 90 wt % of butyl acrylate monomers and 10 wt % of hyperbranched polyester acrylate oligomers (Etercure 6361-100, provided by Eternal Chemical Co. Ltd., with a solids content of 100% and a refractive index of 1.425)) were added into a plastic bottle, then 40 grams of a solvent (butyl acetate) and 29.56 grams of organic particles (SSX-105, provided by Sekisui Company, polymethacrylate resin solid spherical particles with a mean particle size of 5 μm and a refractive index of 1.49) were sequentially added under high speed stirring, and finally 0.88 grams of a photo-initiator (Irgacure 184, provided by Ciba Company, with a solids content of about 100%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #40, dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 30 μm was obtained.
The steps in Example 3 were repeated except that Tospearl 120A (provided by Momentive Company, silicone resin solid spherical particles with a mean particle size of 2 μm and a refractive index of 1.43) was used as organic particles.
The steps in Example 3 were repeated except that Tospearl 3000A (provided by Momentive Company, silicone resin solid spherical particles with a mean particle size of 4˜7 μm and a refractive index of 1.43) was used as organic particles.
The steps in Example 3 were repeated except that Tospearl 3120 (provided by Momentive Company, silicone resin solid spherical particles with a mean particle size of 12 μm and a refractive index of 1.43) was used as organic particles.
72.48 grams of a fluorocarbon resin (Eterflon 4101-50, provided by Eternal Chemical Co. Ltd., a trifluorochloroethylene and alkyl vinyl ether copolymer resin with a solids content of 50% and a refractive index of 1.47) were added into a plastic bottle, then 0.67 grams of a solvent (butyl acetate) and 14.5 grams of organic particles (Tospearl 145A, provided by Momentive Company, silicone resin solid spherical particles with a mean particle size of 4.5 μm and a refractive index of 1.43) were sequentially added under high speed stirring, and finally 12.35 grams of a curing agent (Desmodur 3390, provided by Bayer Corporation, an isocyanate curing agent with a solids content of about 75%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #20 and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 10 μm was obtained.
The steps in Example 9 were repeated except that an RDS Bar Coater #30 was used in place of an RDS Bar Coater #20. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 20 μm was obtained.
The steps in Example 9 were repeated except that an RDS Bar Coater #40 was used in place of an RDS Bar Coater #20. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 30 μm was obtained.
The steps in Example 9 were repeated except that an RDS Bar Coater #50 was used in place of an RDS Bar Coater #20. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 50 μm was obtained.
64.67 grams of a fluorocarbon resin (Eterflon 4101-50, provided by Eternal Chemical Co. Ltd., a trifluorochloroethylene and alkyl vinyl ether copolymer resin with a solids content of 50% and a refractive index of 1.47) were added into a plastic bottle, then 4.91 grams of a solvent (butyl acetate) and 19.4 grams of organic particles (Tospearl 145 A, provided by Momentive Company, silicone resin solid spherical particles with a mean particle size of 4.5 μm and a refractive index of 1.43) were sequentially added under high speed stirring, and finally 11.02 grams of a curing agent (Desmodur 3390, provided by Bayer Corporation, an isocyanate curing agent with a solids content of about 75%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #10 and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 5 μm was obtained.
The steps in Example 13 were repeated except that an RDS Bar Coater #20 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 10 μm was obtained.
The steps in Example 13 were repeated except that an RDS Bar Coater #30 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 20 μm was obtained.
The steps in Example 13 were repeated except that an RDS Bar Coater #40 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 30 μm was obtained.
The steps in Example 13 were repeated except that an RDS Bar Coater #50 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 50 μm was obtained.
The steps in Example 13 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 58.37 grams, 8.33 grams, 23.35 grams and 9.95 grams, respectively.
The steps in Example 14 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 58.37 grams, 8.33 grams, 23.35 grams and 9.95 grams, respectively.
The steps in Example 15 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 58.37 grams, 8.33 grams, 23.35 grams and 9.95 grams, respectively.
The steps in Example 16 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 58.37 grams, 8.33 grams, 23.35 grams and 9.95 grams, respectively.
The steps in Example 17 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 58.37 grams, 8.33 grams, 23.35 grams and 9.95 grams, respectively.
The steps in Example 13 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 53.2 grams, 11.13 grams, 26.6 grams and 9.07 grams, respectively.
The steps in Example 14 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 53.2 grams, 11.13 grams, 26.6 grams and 9.07 grams, respectively.
The steps in Example 15 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 53.2 grams, 11.13 grams, 26.6 grams and 9.07 grams, respectively.
The steps in Example 17 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 53.2 grams, 11.13 grams, 26.6 grams and 9.07 grams, respectively.
The steps in Example 13 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 42.02 grams, 17.2 grams, 33.62 grams and 7.16 grams, respectively.
The steps in Example 14 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 42.02 grams, 17.2 grams, 33.62 grams and 7.16 grams, respectively.
The steps in Example 15 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 42.02 grams, 17.2 grams, 33.62 grams and 7.16 grams, respectively.
The steps in Example 16 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 42.02 grams, 17.2 grams, 33.62 grams and 7.16 grams, respectively.
The steps in Example 17 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 42.02 grams, 17.2 grams, 33.62 grams and 7.16 grams, respectively.
The steps in Example 13 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 39.27 grams, 18.69 grams, 35.35 grams and 6.69 grams, respectively.
The steps in Example 14 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 39.27 grams, 18.69 grams, 35.35 grams and 6.69 grams, respectively.
The steps in Example 15 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 39.27 grams, 18.69 grams, 35.35 grams and 6.69 grams, respectively.
The steps in Example 16 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 39.27 grams, 18.69 grams, 35.35 grams and 6.69 grams, respectively.
The steps in Example 17 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 39.27 grams, 18.69 grams, 35.35 grams and 6.69 grams, respectively.
The steps in Example 13 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 36.86 grams, 20 grams, 36.86 grams and 6.28 grams, respectively.
The steps in Example 14 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 36.86 grams, 20 grams, 36.86 grams and 6.28 grams, respectively.
The steps in Example 15 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 36.86 grams, 20 grams, 36.86 grams and 6.28 grams, respectively.
The steps in Example 16 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 36.86 grams, 20 grams, 36.86 grams and 6.28 grams, respectively.
The steps in Example 17 were repeated except that the amounts of the fluorocarbon resin, solvent, organic particles and curing agent were changed to 36.86 grams, 20 grams, 36.86 grams and 6.28 grams, respectively.
64.67 grams of an acrylate resin (ETERAC 7363-TS-50, provided by Eternal Chemical Co. Ltd., an acrylate copolymer resin with a solids content of 50% and a refractive index of 1.49) were added into a plastic bottle, then 4.91 grams of a solvent (butyl acetate) and 19.4 grams of organic particles (Tospearl 145A, provided by Momentive Company, silicone resin solid spherical particles with a mean particle size of 4.5 μm and a refractive index of 1.43) were sequentially added under high speed stirring, and finally 11.02 grams of a curing agent (Desmodur 3390, provided by Bayer Corporation, an isocyanate curing agent with a solids content of about 75%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #10 and dried for 2 minutes at 120° C. Finally, a coating layer having a thickness of about 5 μm was obtained.
The steps in Example 42 were repeated except that an RDS Bar Coater #20 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 120° C. Finally, a coating layer having a thickness of about 10 μm was obtained.
The steps in Example 42 were repeated except that an RDS Bar Coater #30 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 120° C. Finally, a coating layer having a thickness of about 20 μm was obtained.
The steps in Example 42 were repeated except that an RDS Bar Coater #40 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 120° C. Finally, a coating layer having a thickness of about 30 μm was obtained.
The steps in Example 42 were repeated except that an RDS Bar Coater #50 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 120° C. Finally, a coating layer having a thickness of about 50 μm was obtained.
The steps in Example 42 were repeated except that the amounts of the resin, solvent, organic particles and curing agent were changed to 53.2 grams, 11.13 grams, 26.6 grams and 9.07 grams, respectively.
The steps in Example 43 were repeated except that the amounts of the resin, solvent, organic particles and curing agent were changed to 53.2 grams, 11.13 grams, 26.6 grams and 9.07 grams, respectively.
The steps in Example 44 were repeated except that the amounts of the resin, solvent, organic particles and curing agent were changed to 53.2 grams, 11.13 grams, 26.6 grams and 9.07 grams, respectively.
The steps in Example 46 were repeated except that the amounts of the resin, solvent, organic particles and curing agent were changed to 53.2 grams, 11.13 grams, 26.6 grams and 9.07 grams, respectively.
The steps in Example 42 were repeated except that the amounts of the resin, solvent, organic particles and curing agent were changed to 42.02 grams, 17.2 grams, 33.62 grams and 7.16 grams, respectively.
The steps in Example 43 were repeated except that the amounts of the resin, solvent, organic particles and curing agent were changed to 42.02 grams, 17.2 grams, 33.62 grams and 7.16 grams, respectively.
The steps in Example 44 were repeated except that the amounts of the resin, solvent, organic particles and curing agent were changed to 42.02 grams, 17.2 grams, 33.62 grams and 7.16 grams, respectively.
The steps in Example 45 were repeated except that the amounts of the resin, solvent, organic particles and curing agent were changed to 42.02 grams, 17.2 grams, 33.62 grams and 7.16 grams, respectively.
The steps in Example 46 were repeated except that the amounts of the resin, solvent, organic particles and curing agent were changed to 42.02 grams, 17.2 grams, 33.62 grams and 7.16 grams, respectively.
36.81 grams of an epoxy acrylate resin (SUP-560, provided by Shin-A Company, with a solids content of 100% and a refractive index of 1.57) were added into a plastic bottle, then 40 grams of a solvent (butyl acetate) and 22.09 grams of organic particles (SSX-105, provided by Sekisui Company, polymethacrylate resin solid spherical particles with a mean particle size of 5 μm and a refractive index of 1.49) were sequentially added under high speed stirring, and finally 1.10 grams of a photo-initiator (Irgacure 184, provided by Ciba Company, with a solids content of about 100%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #10, dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 5 μm was obtained.
The steps in Example 56 were repeated except that an RDS Bar Coater #20 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 10 μm was obtained.
The steps in Example 56 were repeated except that an RDS Bar Coater #30 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 20 μm was obtained.
The steps in Example 56 were repeated except that an RDS Bar Coater #40 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 30 μm was obtained.
The steps in Example 56 were repeated except that an RDS Bar Coater #50 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 50 μm was obtained.
The steps in Example 56 were repeated except that the amounts of the resin, solvent, organic particles and photo-initiator were changed to 29.56 grams, 40 grams, 29.56 grams and 0.88 grams, respectively.
The steps in Example 57 were repeated except that the amounts of the resin, solvent, organic particles and photo-initiator were changed to 29.56 grams, 40 grams, 29.56 grams and 0.88 grams, respectively.
The steps in Example 58 were repeated except that the amounts of the resin, solvent, organic particles and photo-initiator were changed to 29.56 grams, 40 grams, 29.56 grams and 0.88 grams, respectively.
The steps in Example 60 were repeated except that the amounts of the resin, solvent, organic particles and photo-initiator were changed to 29.56 grams, 40 grams, 29.56 grams and 0.88 grams, respectively.
The steps in Example 56 were repeated except that the amounts of the resin, solvent, organic particles and curing agent were changed to 22.82 grams, 40 grams, 36.5 grams and 0.68 grams, respectively.
The steps in Example 57 were repeated except that the amounts of the resin, solvent, organic particles and photo-initiator were changed to 22.82 grams, 40 grams, 36.5 grams and 0.68 grams, respectively.
The steps in Example 58 were repeated except that the amounts of the resin, solvent, organic particles and photo-initiator were changed to 22.82 grams, 40 grams, 36.5 grams and 0.68 grams, respectively.
The steps in Example 59 were repeated except that the amounts of the resin, solvent, organic particles and photo-initiator were changed to 22.82 grams, 40 grams, 36.5 grams and 0.68 grams, respectively.
The steps in Example 60 were repeated except that the amounts of the resin, solvent, organic particles and photo-initiator were changed to 22.82 grams, 40 grams, 36.5 grams and 0.68 grams, respectively.
64.67 grams of a fluorocarbon resin (Eterflon 4101-50, provided by Eternal Chemical Co. Ltd., a trifluorochloroethylene and alkyl vinyl ether copolymer resin with a solids content of 50% and a refractive index of 1.47) were added into a plastic bottle, then 4.91 grams of a solvent (butyl acetate) and 19.4 grams of organic particles (SSX-105, provided by Sekisui Company, polymethacrylate resin solid spherical particles with a mean particle size of 5 μm and a refractive index of 1.49) were sequentially added under high speed stirring, and finally 11.02 grams of a curing agent (Desmodur 3390, provided by Bayer Corporation, an isocyanate curing agent with a solids content of about 75%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #20 and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 10 μm was obtained.
The steps in Example 70 were repeated except that an RDS Bar Coater #30 was used in place of an RDS Bar Coater #20. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 20 μm was obtained.
The steps in Example 70 were repeated except that an RDS Bar Coater #40 was used in place of an RDS Bar Coater #20. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 30 μm was obtained.
The steps in Example 70 were repeated except that an RDS Bar Coater #50 was used in place of an RDS Bar Coater #20. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 50 μm was obtained.
53.2 grams of a fluorocarbon resin (Eterflon 4101-50, provided by Eternal Chemical Co. Ltd., a trifluorochloroethylene and alkyl vinyl ether copolymer resin with a solids content of 50% and a refractive index of 1.47) were added into a plastic bottle, then 11.13 grams of a solvent (butyl acetate) and 26.6 grams of organic particles (SSX-105, provided by Sekisui Company, polymethacrylate resin solid spherical particles with a mean particle size of 5 μm and a refractive index of 1.49) were sequentially added under high speed stirring, and finally 9.07 grams of a curing agent (Desmodur 3390, provided by Bayer Corporation, an isocyanate curing agent with a solids content of about 75%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #10 and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 5 μm was obtained.
The steps in Example 74 were repeated except that an RDS Bar Coater #20 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 10 μm was obtained.
The steps in Example 74 were repeated except that an RDS Bar Coater #30 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 20 μm was obtained.
The steps in Example 74 were repeated except that an RDS Bar Coater #50 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 50 μm was obtained.
The steps in Example 74 were repeated except that the amounts of the resin, solvent, organic particles and curing agent were changed to 42.02 grams, 17.2 grams, 33.62 grams and 7.16 grams, respectively.
The steps in Example 78 were repeated except that an RDS Bar Coater #20 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 10 μm was obtained.
The steps in Example 78 were repeated except that an RDS Bar Coater #30 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 20 μm was obtained.
The steps in Example 78 were repeated except that an RDS Bar Coater #40 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 30 μm was obtained.
The steps in Example 78 were repeated except that an RDS Bar Coater #50 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 150° C. Finally, a coating layer having a thickness of about 50 μm was obtained.
36.81 grams of an acrylate resin (a mixture of 90 wt % of butyl acrylate monomers and 10 wt % of hyperbranched polyester acrylate oligomers (Etercure 6361-100, provided by Eternal Chemical Co. Ltd., with a solids content of 100% and a refractive index of 1.425)) were added into a plastic bottle, then 40 grams of a solvent (butyl acetate) and 22.09 grams of organic particles (SSX-105, provided by Sekisui Company, polymethacrylate resin solid spherical particles with a mean particle size of 5 μm and a refractive index of 1.49) were sequentially added under high speed stirring, and finally 1.1 grams of a photo-initiator (Irgacure 184, provided by Ciba Company, with a solids content of about 100%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #20, dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 10 μm was obtained.
The steps in Example 83 were repeated except that an RDS Bar Coater #30 was used in place of an RDS Bar Coater #20. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 120° C. Finally, a coating layer having a thickness of about 20 μm was obtained.
The steps in Example 83 were repeated except that an RDS Bar Coater #40 was used in place of an RDS Bar Coater #20. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 120° C. Finally, a coating layer having a thickness of about 30 μm was obtained.
The steps in Example 83 were repeated except that an RDS Bar Coater #50 was used in place of an RDS Bar Coater #20. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) and dried for 2 minutes at 120° C. Finally, a coating layer having a thickness of about 50 μm was obtained.
29.56 grams of an acrylate resin (a mixture of 90 wt % of butyl acrylate monomers and 10 wt % of hyperbranched polyester acrylate oligomers (Etercure 6361-100, provided by Eternal Chemical Co. Ltd., with a solids content of 100% and a refractive index of 1.425)) were added into a plastic bottle, then 40 grams of a solvent (butyl acetate) and 29.56 grams of organic particles (SSX-105, provided by Sekisui Company, polymethacrylate resin solid spherical particles with a mean particle size of 5 μm and a refractive index of 1.49) were sequentially added under high speed stirring, and finally 0.88 grams of a photo-initiator (Irgacure 184, provided by Ciba Company, with a solids content of about 100%) were added, so as to prepare a coating composition with a solids content of about 60% and a total weight of about 100 grams. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation) with an RDS Bar Coater #10, dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 5 μm was obtained.
The steps in Example 87 were repeated except that an RDS Bar Coater #20 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation), dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 10 μm was obtained.
The steps in Example 87 were repeated except that an RDS Bar Coater #30 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation), dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 20 μm was obtained.
The steps in Example 87 were repeated except that an RDS Bar Coater #50 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation), dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 50 μm was obtained.
The steps in Example 87 were repeated except that the amounts of the resin, solvent, organic particles and photo-initiator were changed to 22.82 grams, 40 grams, 36.5 grams and 0.68 grams, respectively.
The steps in Example 91 were repeated except that an RDS Bar Coater #20 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation), dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 10 μm was obtained.
The steps in Example 91 were repeated except that an RDS Bar Coater #30 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation), dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 20 μm was obtained.
The steps in Example 91 were repeated except that an RDS Bar Coater #40 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation), dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 30 μm was obtained.
The steps in Example 91 were repeated except that an RDS Bar Coater #50 was used in place of an RDS Bar Coater #10. The coating composition was coated on one side of a polyethylene terephthalate (PET) film (CH885, with a thickness of 250 μm, provided by NAN YA Plastics Corporation), dried for 2 minutes at 120° C. and then irradiated with UV light (irradiation intensity: 500 mJ/cm2). Finally, a coating layer having a thickness of about 50 μm was obtained.
<Data Test Method>
1. Test of total light transmittance (Tt): Measurement is carried out with a coating surface facing a light incident direction at a test wavelength of 550 nm according to the ASTM E903-96 standard method by using a Lamda 650S UV-Visible Light Spectrometer (Perkin Elmer Inc.) with a 60 mm integrating sphere as a detector, to obtain the total light transmittance Tt.
2. Test of parallel light transmittance (Pt): Measurement is carried out with a coating surface facing a light incident direction according to the JIS K7136 standard method by using a NDH 5000W Haze meter (Nippon Denshoku Industries Co., Ltd.), to obtain the parallel light transmittance (Pt).
3. Test of solar cell module efficiency (η): The solar cell module to be tested is irradiated at an illumination of AM 1.5 by using a solar simulator (Model: 92193A-1000, Newport Corporation), and an I-V characteristic curve is obtained, so as to calculate the solar cell module efficiency (η=Pmax/Pin).
4. Measurement of refractive index of a resin before being cured: the refractive index of the resin is measured by using an Abbe refractor (Model: DR-A1, ATAGO Corporation) (resin used in Example 5, and Examples 83-95: refractive index 1.425; Eterflon 4101-50: refractive index 1.47; Eterac 7363-TS-50: refractive index 1.49; and SUP-560: refractive index 1.57)
<Preparation of Solar Cell Module>
A solar cell module A as shown in
A solar cell module A1 as shown in
A solar cell module A2 as shown in
A solar cell module A3 as shown in
The steps in Module Example 3 were repeated, except that the film of Comparative Example 3 was replaced by the films of Comparative Examples 4 to 6 and Examples 1 to 5, and the coating layers were facing upward.
The steps in Module Example 4 were repeated, except that the film of Comparative Example 3 was replaced by the films of Comparative Examples 4 to 6 and Examples 1 to 5, and the coating layers were facing downward.
Table 1 shows the module power generation efficiency (η) and the gain in module power generation efficiency (Δη) of solar cell module Examples 1 to 20 and the organic particle refractive index (nB), the α value, and the optical properties, in which the gain in power generation efficiency (Δη) is the difference between the power generation efficiency of the solar cell module A1, A2, or A3 and the power generation efficiency of the solar cell module A.
As shown in Examples 1 to 5 in Table 1, when the transmittance enhancement film meets the conditions that 0.95≦α≦1.05 and nB<1.5, the total light transmittance (Tt) of the transmittance enhancement film is higher than 95%, and the parallel light transmittance (Pt) is less than 12%, indicating that after the light passes through the transmittance enhancement film and enters the module, more internal total reflection is caused, thereby improving the light utilization, and when the transmittance enhancement film is assembled on a light incident surface of a solar cell module, the corresponding module power generation efficiency η is higher than those of all Comparative Examples.
As shown in Comparative Examples 3 to 6 in Table 1, when the α value of the transmittance enhancement film falls outside the range of 0.95≦α≦1.05 (Comparative Example 3, Comparative Example 5, and Comparative Example 6), or nB of the transmittance enhancement film >1.5 (Comparative Examples 4 to 6), the total light transmittance of the transmittance enhancement film is less than 95%, and when the transmittance enhancement film is assembled on a light incident surface of a solar cell module, the corresponding module power generation efficiency η is less than those of the embodiments.
A solar cell module B as shown in
A solar cell module C as shown in
A solar cell module D as shown in
Solar cell assemblies C1 as shown in
Solar cell assemblies C2 as shown in
A solar cell module D1 as shown in
A solar cell module D2 as shown in
The steps in Module Example 26 were repeated, excepted that the film of Comparative Example 3 was replaced by the films of Comparative Example 4, Comparative Example 6, and Embodiment 2 respectively.
The steps in Module Example 27 were repeated, excepted that the film of Comparative Example 3 was replaced by the films of Comparative Example 4, Comparative Example 6, and Example 2 respectively.
Table 2 shows the module power generation efficiency (η) and the gain in module power generation efficiency (Δη) of solar cell module Examples 21 to 39, and the organic particle refractive index (nB), the α value, and the optical properties of the transmittance enhancement film used in the module. The B/R value and the α value are as defined above, and the gain in module power generation efficiency (Δη) is the difference between the power generation efficiency of the solar cell assemblies C, C1, C2, D, D1, or D2 and the power to generation efficiency of the solar cell module B.
In the solar cell assemblies C, C1, and C2 in Table 2, a transparent PET (C) or a transmittance enhancement film was attached onto a light incident surface of a tempered glass with the coating layer facing upward (C1) or downward (C2). Module Examples 36 and 37 respectively have the forms of Assemblies C1 and C2, and the used transmittance enhancement film meets the conditions 0.95≦α≦1.05 and nB<1.5 (Film Example 2) at the same time. The results in Table 2 show that compared with the module examples using the films of Comparative Examples 1 to 4 or Comparative Example 6, Module Examples 36 and 37 have a higher power generation efficiency η.
In the solar cell assemblies D, D1, and D2 in Table 2, a transparent PET film was located on another side of the light incident surface of the tempered glass respectively, such that the film exists between the glass and the encapsulant (D); or a transmittance enhancement film was attached onto another side of the light incident surface of the tempered glass with the coating layer facing upward (D1) or downward (D2), such that the film exists between the glass and the encapsulant. Module Examples 38 and 39 respectively have the forms of Assemblies D1 and D2, and the used transmittance enhancement film meets the conditions 0.95≦α≦1.05 and nB<1.5 (Film Example 2) at the same time. The results in Table 2 show that compared with the module examples using the films of Comparative Examples 1 to 4 or Comparative Example 6, Module Examples 38 and 39 have a higher module power generation efficiency η.
It can be known from the results in Tables 1 and 2 that in a solar module, use of the transmittance enhancement film meeting the conditions 0.95≦α≦1.05 and nB<1.5 at the same time can greatly improve the power generation efficiency of the module; and the transmittance enhancement film can replace the frontsheet in the original solar module (for example, Assemblies A2 and A3), and adhered to the light incident surface of the glass frontsheet (for example, Assemblies C1 and C2), or adhered to another side of the light incident surface of the glass frontsheet.
The steps in Module Example 3 were repeated, except that the film of Comparative Example 3 was replaced by the films of Examples 6 to 95 respectively, with the coating layer facing upward.
Table 3 shows the properties of the transmittance enhancement films prepared when the mean diameter of the organic particles is changed to be 2 μm (Example 6), and 4-7 μm (Example 7) with wide distribution, and 12 μm to (Example 8) while the B/R value (1.0), the coating thickness (30 μm), the particle refractive index (nB=1.43), and the α value (0.97) are fixed, and the power generation efficiency and the gain in power generation efficiency (Δη) after the transmittance enhancement film is assembled on the solar cell module (Module A2). The B/R value and the α value are as defined above, and the gain in power generation efficiency (Δη) is the difference between the power generation efficiency of the solar cell module A2 and the power generation efficiency of the solar cell module A.
According to Table 3, when the transmittance enhancement film meets the conditions 0.95≦α≦1.05 and nB<1.5, the module power generation efficiency is higher than a conventional solar cell module (Module Example 1; solar cell solar cell module A) and a solar cell module using a transmittance enhancement film with the α value outside the range of 0.95≦α≦1.05 or with nB>1.5 (Module Examples 3, 5, 7, and 9).
Table 4 shows the properties of the transmittance enhancement films prepared when the B/R value and the coating thickness are changed while α=0.97 and nB=1.43 are fixed, and the power generation efficiency η and the gain in power generation efficiency (Δη) when the transmittance enhancement film is assembled on the solar cell module (Module A2). The B/R value and the α value are as defined above, and the gain in module power generation efficiency (Δη) is the difference between the power generation efficiency of the solar cell module A2 and the power generation efficiency of the solar cell module A.
Film Examples and the results of the performance of the corresponding solar cell assemblies in Table 4 are as shown in
It can be seen from Table 4 and
Table 4 and
The results prove that when the solar cell module has a transmittance enhancement film meeting the conditions α=0.97 and nB=1.43, when the B/R value of the transmittance enhancement film is less than 1.5, the thicker the coating layer of the transmittance enhancement film coating is (for example, 50 μm), the higher the module power generation efficiency will be; and when the B/R value of the transmittance enhancement film is equal to or greater than 1.5, the thinner the coating layer of the transmittance enhancement film (for example, 5 μm), the higher the module power generation efficiency will be.
Table 5 shows the properties of the transmittance enhancement film prepared when the B/R value and the coating thickness are changed under the conditions of different α and nB, and the power generation efficiency η and the gain in power generation efficiency (Δη) of the module when the transmittance enhancement film is assembled on the solar cell module (Module A2). The B/R value and the α value are as defined above, and the gain in module power generation efficiency (Δη) is the difference between the power generation efficiency of the solar cell module A2 and the power generation efficiency of the solar cell module A.
In Table 5, Film Examples and the results of the performance of the corresponding solar cell assemblies are as shown in
It can be seen from Table 5 and
It can be seen from Table 5 and
The analysis results above prove that when the solar cell module has a transmittance enhancement film meeting the conditions 0.95<α<1.05 and nB<1.5, and the transmittance enhancement film has a B/R<1.5, the thicker the coating layer of the transmittance enhancement film is (for example, 50 μm), the higher the module power generation efficiency will be; and when the transmittance enhancement film has a B/R≧1.5, the thinner the coating layer of the transmittance enhancement film (for example, 5 μm), the higher the module power generation efficiency will be.
| Number | Date | Country | Kind |
|---|---|---|---|
| 100111944 | Apr 2011 | TW | national |
