关键词: 热解;聚丁二烯;羟基化合物;固体火箭推进剂粘合剂

Abstract: The thermal decomposition process of HTPB is inspected. The process undergoes two stages. In first stage principal products are 4-vinyl-l-cyclohexene, butadiene etc. In second stage the principal products are butadiene and cyclope-ntene. It shows that the major reaction is depolymerization companied by cycliza-tion and cross-linked action in earlier stage, splitting decomposition of cyclization and cross-linked products in second stage. The possible mechanism of HTPB thermal decomposition is discussed in the paper.

Key words: Thermolysis;Polybutadiene;Hydroxylate;Solid rocket propellant binder