Thermoplastic elastomer


Minimum signature and smoke Booster, sustainer, and spacecraft Reduced smoke Minimum signature, gas generator

Like CMDB above, but generally superior mechanical properties with elastomer added as binder Al, AP, KP, HMX, RDX Booster, sustainer or spacecraft; used extensively in many applications

AN, HMX, RDX, some AP Reduced smoke, gas generator

All like HTPB above, but somewhat lower performance due to higher processing viscosity and consequent lower solids content. Still used in applications with older designs Similar to HTPB, but without chemical curing process. TPEs cure (crosslink) via selective crystallization of certain parts of the binder. Still are experimental propellants DOA, IDP, TMETN, DEGDN, etc. Al, AP, KP, HMX Booster, sustainer, or spacecraft

TMETN, BTTN, etc. GAP-azide, Like polyether/polyester propellants above, but with slightly GAP-nitrate, NG higher performance. Experimental propellant.


" CMDB, composite-modified double-base; EMCDB, elastomer-modified cast double-base; TPE, thermoplastic elastomer. For definition of acronyms and abbreviation of propellant ingredients see Tables 12-6 and 12—7.

TABLE 12-9. Comparison of Crystalline Oxidizers

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