Patent Application
20170037500
The non-provisional application claims priority from Taiwan Patent Application No. 104125863, filed on Aug. 7, 2015, the content thereof is incorporated by reference herein.
The invention relates to a method of preparing insulation coating, and more particularly to forming an insulation coating via spraying the mixture on a substrate, wherein the mixture is a combination of an epoxy powder and a graphite powder or a polyethylene (PE) powder and the graphite powder.
Traditional types of noise barriers are created as a sponge inner surface and utilize the sound absorption characteristics of the sponge to absorb noise.
However, after prolonged use of the noise barrier makes the sponge gradually deteriorate. The sponge of the noise needs to be replaced to maintain the effectiveness of the noise barrier. The maintenance process is more complicated and time consuming since the noise barrier needs to be removed from the wall and repaired.
China patent 103710873A discloses a non woven cloth sound absorbing cotton containing graphene. The non woven cloth sound absorbing cotton is composed of a top face layer, a back layer and a fiber cotton layer clamped between the top face layer and the back layer, the top face layer and the back layer are made of non woven cloth, and the non woven cloth is formed by weight, 100 parts of isostatic polypropylene, 5-7 parts of vinyl acetate, 2-3 parts of acrylic acid-2-hydroxy propyl ester, 1-2 parts of isocyanate, 4-5 parts of silica, 2-3 parts of sodium tripolyphosphate, 12-15 parts of epoxidized soybean oil, 1-2 parts of graphene, 1-2 parts of cetyl trimethyl ammonium bromide, 3-4 parts of radix isatidis, 1-2 parts of dyer woad leaf, 2-3 parts of houttuynia cordata and 4-5 parts of auxiliary through a melt-blowing method.
The non woven cloth which is excellent in mechanical performance and dense in cloth quality is taken as an outer layer material. Utilizing the non woven cloth the leakage of interlayer fiber cotton is effectively prevented, environment friendliness and safety is provided, heat resistance and flame retardancy is increased, sound absorbing and denoising and the like is realized, and the non woven cloth sound absorbing cotton has numerous applications.
However, the non woven fiber cloth material deteriorates after long-term exposure to the sun and rain. Therefore, like the insulation above, the sound-absorbing cotton material still has room for improvement.
In view of the foregoing, a need exists in the art for an improved noise barrier using non woven cloth as an insulation material.
Accordingly, to solve the above problems, an object of the present invention is to provide an insulation coating. The insulation coating has numerous advantages such as a simple structure, relatively low cost, and good sound insulation.
In order to accomplish the above objective and more, the present invention discloses providing a powder of polymer material, a graphite powder, and a substrate, wherein the powder of polymer material is an epoxy powder or a polyethylene (PE) powder; forming a mixture via mixing the powder of polymer material and the graphite powder, wherein the volume percentage concentration of the graphite powder is between 5˜25 vol %; heating the mixture to a temperature between 350˜650° C.; spraying the mixture on the substrate; and cooling the mixture to form an insulation coating.
In order to describe details of preferred embodiments of the present invention, description of the structure, and the application as well as the steps are made with reference to the accompanying drawings. It is learned that after the description, any variation, modification or the like to the structure and the steps of the embodiments of the preferred embodiments of the present invention is easily made available to any person skilled in the art. Thus, the following description is only for illustrative purpose and does not, in any way, try to limit the scope of the present invention.
With reference to
Step 91: providing a powder of polymer material 1, a graphite powder 2, and a substrate 3. In the first embodiment, the powder of polymer material 1 is an epoxy powder or a polyethylene (PE) powder, the graphite powder 2 is a normal graphite powder or an expanded graphite powder, and the substrate 3 is a metal substrate, a stone substrate or a cement substrate.
Step 92: forming a mixture 4 via mixing the powder of polymer material 1 and the graphite powder 2. The present invention forms the mixture 4 via utilizing different volume percentage concentrations of the normal graphite powder or the expanded graphite powder respectively mixed into the epoxy powder or the polyethylene powder. The ingredients of the mixture 4 as shown in table one, are preferably, with a volume percentage concentration of the graphite powder 2 between 5˜25 vol %.
Step 93: heating the mixture 4 to a temperature between 350˜650° C.
Step 94: spraying the mixture 4 on the substrate 3. The present invention utilizes a spray device 6 that heats the mixture 4 to a temperature between 350˜650° C. and sprays the molten mixture 4 on the substrate 3, wherein the spray device 6 is a thermal spray device. It is noted that the surface of the substrate 3 may be sand sprayed to remove oxides or impurities and increase adhesion to the substrate 3.
Step 95: cooling the mixture 4 to form an insulation coating 5. The mixture 4 is cooled to room temperature and forms an insulation coating 5, preferably the thickness of the insulation coating 5 is between 0.4˜1.3 cm.
With reference to
In the second embodiment of the present invention, after Step 95′ comprises: cooling the mixture 4 to form an insulation coating 5 further comprising a step 96′: spraying the mixture 4 on the insulation coating 5 and cooling the mixture 4 to form a second insulation coating 51. The thickness of the second insulation coating 51 is preferably between 0.4˜1.3 cm.
With reference to
With reference to
With reference to
With reference to
In an embodiment of the present invention, after Step 95 comprises: cooling the mixture 4 to form an insulation coating 5 further comprising the following step: heating the surface of the insulation coating 5 to a temperature between 350˜650° C.; and cooling the mixture 4 to room temperature. According to
As mentioned above, the present invention provides preparing an insulation coating that has numerous advantages such as simple structure, ease of manufacturing, longer service life, relatively low cost, and good sound insulation properties.
While the invention has been described in connection with what is considered the most practical and preferred embodiments, it is understood that this invention is not limited to the disclosed embodiments but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.
| Number | Date | Country | Kind |
|---|---|---|---|
| 104125863 | Aug 2015 | TW | national |
