引发剂对乙烯基酯树脂的固化动力学及力学性能的影响  

THE EFFECTS OF INITIATORS ON THE CURE KINETICS AND MECHANICAL PROPERTIES IN VINYL-ESTER RESIN

作　　者：李鹏[1] 杨小平[1] 余鼎声[1] 

机构地区：[1]北京化工大学炭纤维及复合材料研究所,北京100029

出　　处：《高分子材料科学与工程》2005年第4期240-243,共4页Polymer Materials Science & Engineering

基　　金：国家863计划资助项目(2001AA335030)

摘　　要：应用等温DSC法研究了引发体系对乙烯基酯树脂固化动力学的影响,结果表明,引发剂的联用降低了树脂反应的诱导期和达到反应放热峰值的时间,提高了树脂的恒温反应热。通过不同反应条件下乙烯基酯树脂浇注体的力学测试分析表明,恒温反应温度对树脂浇注体的拉伸及弯曲性能起决定作用,而引发体系的作用不大。The effects of initiator system on the cure kinetics of vinyl-ester resins have been studied by isothermal DSC. The results demonstrate that the combination of initiators decreases the induction times and the peak times of the reaction of viny-ester resins, while increases the isothermal reaction heats. The mechanical properties of differrent cure conditions show that it is isothermal temperatures that decides the tensile strength and flexural strength, but not the initiator system.

关 键 词：乙烯基酯树脂 固化动力学 反应热 力学性能 

分 类 号：TQ314.241[化学工程—高聚物工业]