HTPE推进剂慢速烤燃及其热分解特性  

Slow cook-off behavior and thermal decomposition characteristics of HTPE propellants

作　　者：李军强[1] 樊学忠[1] 唐秋凡 李吉祯[1] 王国强[1] 任晓宁[1] 梅智涛 LI Junqiang;FAN Xuezhong;TANG Qiufan;LI Jizhen;WANGGuoqiang;REN Xiaoning;MEI Zhitao(Xi'an Modern Chemistry Research Institute,Xi'an 710065,China)

机构地区：[1]西安近代化学研究所

出　　处：《固体火箭技术》2019年第5期597-603,共7页Journal of Solid Rocket Technology

摘　　要：利用差示扫描量热(DSC)、热重(TG)和慢速烤燃试验,对比HTPB推进剂热分解和慢速烤燃结果,分析了HTPE推进剂的热分解特性与慢速烤燃行为的关系。结果表明,HTPE推进剂比HTPB推进剂更容易发生热分解反应,且慢烤响应时间比HTPB推进剂提前40min,响应温度降低44℃;缓和剂BABE能使推进剂在低于AP发生分解反应(169℃)前发生分解反应,避免了AP热分解形成的气孔的影响,可大幅度减缓推进剂慢烤的响应程度。HTPE推进剂能通过慢速烤燃响应结果为燃烧,通过慢烤试验。The relationship between cook-off and thermal decomposition of HTPE propellants was determined by DSC, TG and slow cook-off experiments. Results for HTPE propellant were analyzed and compared with those of HTPB propellants. It has been found that in comparison to HTPB propellant, HTPE propellants was more likely to decompose. The response time of HTPE propellants was increased by 40 minutes and the response temperature of that was decreased about 44 ℃ in slow cook-off test. The HTPE propellants started to decompose below 169 ℃ because of the BABE, which decomposed before AP. Then the intensity of response was reduced. The response result of HTPE propellants was burning in slow cook-off test. That means HTPE propellants could pass the safety criteria of the slow cook-off test.

关 键 词：端羟基聚醚(HTPE)推进剂 热分解 动力学参数 慢速烤燃试验 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]