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Solvolytic Degradation of Polymeric Propellant Binders
Final rept. 1 Mar 1974-31 May 1975
FLORIDA UNIV GAINESVILLE CENTER FOR MACROMOLECULAR SCIENCE AND ENGINEERING
Pagination or Media Count:
The effect of various catalysts on the rate of solvolysis of the polyester and polyurethane binders in butylamine was studied. Polymer binders in propellants usually constitute from 16 to 20 of the total weight of the propellant. The remaining 84-80 is generally made up of oxidizer, usually in Polaris motors ammonium perchlorate AP 60-82, aluminum metal, 2-18, and stabilizers, 0-1. The binders of chief concern at present in Polaris motors appear to be one of two types 1 polyurethanes or 2 cured polybutadiene prepolymers. The problem of disposing of obsolete propellants is a formidable one because of the legal limitations on burning and dumping. The product gases from burning would cause serious pollution of the atmosphere and other possible means of disposal also present problems.
APPROVED FOR PUBLIC RELEASE