苯基硅橡胶在航空航天领域的应用研究  

Study on Aerospace Application of MVPQ

作　　者：刘琳[1] 金磊[1] LIU Lin;JIN Lei(Tongji University,Shanghai 201804,China)

机构地区：[1]同济大学材料科学与工程学院

出　　处：《橡胶工业》2020年第2期119-122,共4页China Rubber Industry

摘　　要：对比研究牌号为SE6660,SE6635和SE5563U的甲基乙烯基苯基硅橡胶(简称苯基硅橡胶)及其硫化剂DCBP和DBPH对航空航天领域的适用性。结果表明:SE5563U苯基硅橡胶的综合性能较好;采用硫化剂DBPH的SE5563U苯基硅橡胶交联密度大,抗撕裂性能好,压缩永久变形小,脆化温度为-110℃,非常适用于航空航天器材门窗系统密封材料。The applications of methylvinylphenyl polysiloxane rubber(MVPQ)with brand name of SE6660,SE6635 and SE5563 U and the vulcanizer DCBP and DBPH in the aerospace field were comparatively studied. The results showed that the comprehensive properties of SE5563 U MVPQ were better,and SE5563 U MVPQ cured with DBPH had a high crosslinking density,good tear resistance,small compression set and brittleness temperature of-110 ℃,which was very suitable for sealing materials of doors and windows of aerospace vehicle.

关 键 词：甲基乙烯基苯基硅橡胶 压缩永久变形 脆化温度 航空航天 

分 类 号：TQ333.93[化学工程—橡胶工业] TQ336.42