摘要
采用傅里叶变换红外（FTIR）光谱法研究双元固化剂IPDI（异佛尔酮二异氰酸酯）/N100（多官能度异氰酸酯）与HTPE（端羟基环氧乙烷–四氢呋喃嵌段共聚醚）之间的反应动力学,并与TDI（甲苯二异氰酸酯）/HTPE、IPDI/HTPE体系进行了比较。结果表明：以TPB（三苯基铋）作催化剂时,IPDI/N100/HTPE、TDI/HTPE、IPDI/HTPE体系的固化反应近似为二级反应,IPDI/N100/HTPE体系的表观活化能为126.21 kJ/mol,相比TDI/HTPE和IPDI/HTPE体系,IPDI/N100/HTPE体系的表观活化能分别升高了52.12、17.46 kJ/mol。
The reaction kinetics between the dual curing agent IPDI（isophorone diisocyanate）/N100 （multi-functional isocyanate） and HTPE（hydroxyl-terminated ethylene oxide-tetrahydrofurane block copolyether） were studied by using the Fourier transform infrared （FTIR） spectrum method and compared with TDI（toluene diisocyanate）/HTPE and IPDI/HTPE systems. The results show that using TPB （triphenyl bismuth） as catalyst, the curing reactions of IPDI/N100/HTPE, TDI/HTPE and IPDI/HTPE systems approximate to the second order reactions. The apparent activation energy of IPDI/N100/HTPE system is 126.21 kJ/mol. Compared with the TDI/HTPE and IPDI/HTPE systems, the apparent activation energy of IPDI/N100/HTPE system increased by 52.12 kJ/mol and 17.46 kJ/mol respectively.
作者
郑亭亭
李苗苗
陈静静
程连潮
吕晓燕
Zheng Tingting, Li Miaomiao, Chen Jingjing, Cheng Lianchao, LU Xiaoyan(Shanghai Space Propulsion Technology Research Institute, Huzhou 313000, China)
出处
《化学推进剂与高分子材料》
CAS
2018年第5期44-48,共5页
Chemical Propellants & Polymeric Materials
