纳米级碳酸铅在NEPE推进剂中的应用  

Effects of nanometer PbCO 3 on combustion behavior of NEPE propellant

作　　者：陈福泰[1] 罗运军[1] 多英全[1] 罗善国[1] 仇武林[1] 姚维尚[1] 谭惠民[1] 

机构地区：[1]北京理工大学化工与材料学院,北京100081

出　　处：《推进技术》2000年第1期82-85,共4页Journal of Propulsion Technology

基　　金：国家"八六三"基金资助项目

摘　　要：研究了纳米级碳酸铅对NEPE推进剂燃速压力指数的影响。采用DSC分析了纳米级碳酸铅与NEPE推进剂主要组分硝酸酯的相容性以及对推进剂固化反应的催化作用和对高氯酸铵、硝胺常压热分解的催化作用,并利用恒压静态燃速仪测试了推进剂在4MPa～11MPa的燃烧速度和燃速压力指数。发现纳米级碳酸铅表现出与硝酸酯良好的相容性,对推进剂的固化反应和硝胺的热分解均有很强的催化作用,对高氯酸铵的热分解则没有明显的影响。当纳米级碳酸铅应用到NEPE推进剂中时,推进剂的燃速压力指数显著降低。The effects of nanometer PbCO 3 on combustion behavior of NEPE solid propellant have been studied The compatibility of nanometer PbCO 3 and nitrate ester , as well as the effects of nanometer PbCO 3 on the curing reaction and on the thermal decomposition behaviors of ammonium perchlorate and nitroamino compounds were studied by Differential Scanning Calorimetry (DSC) It was found that nanometer PbCO 3 exhibited good compatibility with nitrate ester which had observable acceleration on the thermal decomposition of nitroamino compounds and on the curing reaction but little effect on ammonium perchlorate When nanometer PbCO 3 was applied to NEPE solid propellant, the pressure exponent were effectively brought down to 0 54 and 0 52 with which content was 1% and 2%respectively

关 键 词：固体推进剂 NEPE 碳酸铅 燃烧催化剂 燃速系数 

分 类 号：V512.3[航空宇航科学与技术—航空宇航推进理论与工程]