HTPB-异氰酸酯黏结剂体系的室温固化及性能研究  

A Sutdy on the HTPB-isocyanate Binder System Curing at Room Temperature and Related Properties

作　　者：郭嘉昒[1,2] 刘玉存[1] 柴涛[1] 袁俊明[1] 马慧[1] 秦宁[1] 张良[1] 李金龙[1] 

机构地区：[1]中北大学化工与环境学院,山西太原030051 [2]四川科技职工大学安全健康与环境工程系,四川成都610101

出　　处：《爆破器材》2015年第3期7-11,共5页Explosive Materials

基　　金：国家自然科学基金委员会和中国工程物理研究院联合基金资助(U1330131)

摘　　要：文章从浆料适用期、胶膜的表面形态、力学性能等方面研究了不同端羟基聚丁二烯(HTPB)-异氰酸酯体系室温固化的效果。试验结果表明,聚氧化丙烯二醇(N220)的加入,延长了浆料适用期,并初步实现了HTPB-异氰酸酯黏结剂体系在规定时间内(约一周)的室温固化。HTPB-佛尔酮二异氰酸酯(IPDI)体系在适用期、力学性能、胶膜表面形态方面明显优于HTPB-二苯基甲烷二异氰酸酯(MDI)体系。但在固化时间方面,HTPB-MDI、HTPB-甲苯二异氰酸酯(TDI)体系比HTPB-4,4'-二环己基甲烷二异氰酸酯(HMDI)、HTPB-IPDI体系短。在胶膜的拉伸性能方面,与国外同类研究在高温固化条件下的性能相当。Effects of room temperature curing of different HTPB-isocyanate binder systems were studied from pot life of the slurry,surface morphology and mechanical properties of the casted films. Results show that,with the additional hydroxy-terminated polyether（ N220）,the pot life of the slurry was increased,and the process of the binder system curing at room temperature within a predetermined time（ about one week） was achieved. As for the pot life of the slurry,mechanical properties and surface morphology of the film,HTPB-IPDI system was obviously superior to HTPB-MDI system.However,in terms of curing time,HTPB-MDI and HTPB-TDI systems were shorter than HTPB-HMDI and HTPB-IPDI system. At the same time,the tensile properties of the cured films match those of similar studies abroad that were cured at high temperatures.

关 键 词：端羟基聚丁二烯(HTPB) 高聚物黏结炸药 适用期 黏度 力学性能 安全 

分 类 号：TJ51[兵器科学与技术—军事化学与烟火技术] TD235.2[矿业工程—矿井建设]