AlH_3/PEG/NG/BTTN体系的热行为研究  

An investigation on thermal properties of AlH_3/PEG/NG/BTTN

作　　者：李磊 刘明珠[2] 王敏[2] 程新丽[2] 杜芳 何铁山 李军 赵孝彬[2] 

机构地区：[1]固体推进剂高能与安全国防科技重点实验室,襄阳441003 [2]中国航天科技集团公司四院四十二所,襄阳441003 [3]航天工业固体推进剂安全技术研究中心,襄阳441003

出　　处：《固体火箭技术》2015年第4期533-536,共4页Journal of Solid Rocket Technology

基　　金：装备预先研究项目(51328020106)

摘　　要：采用DSC-TG、热裂解原位FTIR联用技术,研究了AlH3和Al H3/PEG/NG/BTTN体系的热分解特性。结果表明,AlH3在约190℃发生吸热分解;AlH3/PEG/NG/BTTN中,硝酸酯的放热分解在176℃,明显提前于PEG/NG/BTTN体系;基于原位红外光谱分析可知,AlH3的引入促进了AlH3/PEG/NG/BTTN体系中硝酸酯O—NO2基团的分解,从而降低了Al H3/PEG/NG/BTTN体系的热安定性。The thermal decomposition properties of Al H3 and Al H3/ PEG / NG / BTTN were studied by means of TG-DSC and insitu thermolysis-FTIR coupling techniques. The results obtained from DSC-TG and FTIR show that the endothermic decomposition of Al H3 occurs at about 190 ℃. The thermal decomposition temperature of NG / BTTN shifted to lower temperature in the presence of Al H3. The decomposition peak temperature of NG / BTTN is 176 ℃. The main functional groups of the Al H3/ PEG / NG / BTTN system were studied based on in-situ thermolysis-FTIR coupling techniques. The results show that the decomposition temperature of O—NO2groups in the Al H3/ PEG / NG / BTTN system is notably lower than that in PEG / NG / BTTN system,reducing the thermal stability of Al H3/ PEG / NG / BTTN system.

关 键 词：物理化学 热分解 FTIR AlH3 安全性 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]