Process for preparing solid propellant grains using thermoplasti

Details Process for preparing solid propellant grains using thermoplasti Process for preparing solid propellant grains using thermoplasti

1986-09-02

1988-08-16

Lechert, Jr., Stephen J.

Plastic and nonmetallic article shaping or treating: processes

Explosive or propellant article shaping or treating

86 201, 86 2012, 86 2014, 102287, 102291, 149 1992, 1491096, 264 34, C06B 2100, C06B 4510, C06D 108, F42B 300

Patent

active

047643161

ABSTRACT:
Thermoplastic elastomer particulates, oxidizer particulates, fuel particulates, plasticizers and other propellant formulation ingredients are mixed to produce a dry blend. The dry blend is tightly packed into a rocket motor casing or mold. The dry blend is then heated in place, beginning at the bottom and continuing upward, to fuse the thermoplastic elastomer. During fusion, vacuum and mechanical compaction pressure are used to eliminate interstices. Upon cooling, a solid propellant grain is produced.

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Pollard et al. 1966 Aerospace Ordnance Handbook, Prentice-Hall, Inc., Englewood Cliffs, N.J., p. 436.

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