Claims
- 1. A method of making a multi-layer propellant having at least one slow burning formulation and at least one fast burning formulation, comprising:
- forming a first formulation having a high energy elastomer binder and a slow rate oxidizer having a burning rate about that of RDX, said first formulation being formed into at least one slow burn layer; and
- forming a second formulation having the same high energy elastomer binder and a fast rate oxidizer having a burning rate about that of CL-20, said second formulation being formed into at least one fast burn layer;
- bonding said at least one slow burn layer and at least one fast burn layer into a single geometric shape such that said layers are bonded together by said binder to provide structural integrity of the resulting multi-layer propellant.
- 2. The method of claim 1, wherein said binder is oxetane thermoplastic elastomer and the amount of binder in each formulation ranges from about five percent to about thirty percent by weight, based on the total weight of the propellant, said slow rate oxidizer is RDX and said fast rate oxidizer is CL-20, such that the ratio of respective burning rates is at least 2:1.
- 3. The method of claim 1, which includes the step of adding a second fast rate oxidizer to said fast rate formulation, said second fast rate oxidizer being selected from the group consisting of TNAZ, S-TNT, S-TNB, BTTN, TMETN, TEGDN, BDNPA/F, methyl NENA, ethyl NENA, and mixtures thereof.
- 4. The method of claim 1, wherein said layers are formed from ribbons, discs, cones, truncated cones and partial spheres.
REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of application Ser. No. 08/006,671, filed on Jan. 19, 1993, and now U.S. Pat. No. 5,244,511.
Government Interests
The invention described herein may be manufactured, used, and licensed by or for the U.S. Government for U.S. Governmental purposes.
US Referenced Citations (6)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
06671 |
Jan 1993 |
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