关键词: 推进剂固化剂;异氰酸酯;固体火箭推进剂;拉伸强度

Abstract: t is very meaningful work to introduce isocyanate terminated prepolymer into solid propellant. Concerning improving mechanical properies of solid propellant, theoretical analysis is explained and experimental datas are reported.The research preliminarily shows that isocyanate terminated propolymer enhances mechanical properties of solid propellant improves its elongation rate at low temperature obviously and modificates its other performances somehow.

Key words: Propellant curing agent;Isocyanate;Solid rocket propellant;Tensile strength