AlH_3/GAP混合体系的热解特性  

Pyrolysis Characteristic of AlH_3/GAP System

作　　者：李磊 程新丽 牛菲[2] 李军 赵孝彬 

机构地区：[1]航天工业固体推进剂安全技术研究中心,湖北襄樊441003 [2]武汉大学化学与分子科学学院,湖北武汉430072

出　　处：《含能材料》2014年第6期762-766,共5页Chinese Journal of Energetic Materials

基　　金：总装"十二五"预先研究项目(51328040101)

摘　　要：采用原位傅里叶红外光谱法(FTIR)研究了Al H3/聚叠氮缩水甘油醚(GAP)混合体系的热解特性。结果表明:Al H3在100℃开始分解,180℃达最大分解速率,250℃左右分解完全;GAP在200℃左右叠氮基开始裂解,并形成亚胺中间体,主链的完全解聚相对滞后;Al H3改变了GAP的分解历程,Al H3/GAP在170℃开始分解,而且在分解过程中没有出现CN、CO等不饱和键,推测是由于Al H3具有较强的还原性。The thermal decomposition of AlH3,glycidyl azide polymer（GAP）and AlH3/ GAP mixed system were studied by in-situ thermolysis-fourier transform infrared spectroscopy（FTIR）coupling techniques. Results show that AlH3 begins to decompose when temperature raises to 100 ℃ and the decomposition rate reaches the maximum at 180 ℃ . The azide group of GAP begins to cleavage to imine intermediate at about 200 ℃. The main chain of GAP completely depolymerization is lagging behind. The decomposition process of GAP is changed by AlH3 . AlH3/GAP system loses mass when temperature raise to 170 ℃,and during the decomposition of AlH3/GAP,Such unsaturated bonds as C=N and C=O are not observed. The possible reason is the strong reduction of AlH3 .

关 键 词：物理化学 AlH3/聚叠氮缩水甘油醚(GAP) 热分解特性 傅里叶红外光谱法(FTIR) 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]