摘要
采用动态力学分析仪分析含有集中交联剂(多乙烯基硅油)的甲基乙烯基硅橡胶(MVQ)的硫化特性。结果表明:采用多乙烯基硅油作为集中交联剂、过氧化二异丙苯作为硫化剂,MVQ胶料的硫化过程为2个阶段的一级动力学反应,具有2个反应速率常数;加入多乙烯基硅油后,MVQ胶料的硫化反应活化能明显提高,硫化反应更难进行,需适当提高硫化温度。
The curing behavior of MVQ with concentrative crosslinker（polyvinylsilicone oil） was analyzed by dynamic mechanical analyzer. The results showed that, using polyvinylsilicone oil as concentrative crosslinker and DCP as curing agent,the curing period of MVQ compound could be treated as two stages expressed in two first-order kinetics equations with different curing rate constants;by using polyvinylsilicone oil in MVQ compound,the activation energy of curing reaction increased significantly,the curing reaction was difficult to proceed, and then the curing temperature should be elevated.
出处
《橡胶工业》
CAS
北大核心
2012年第5期282-286,共5页
China Rubber Industry
基金
中国工程物理研究院科学技术发展基金重点项目(2008A0302011)
