不同交联结构全氟醚橡胶的硫化动力学  

Vulcanization kinetics of perfluoroelastomers with different cross-linking structure

作　　者：王珍 刘金岭 陆明 WANG Zhen;LIU Jinling;LU Ming(Beijing Institute of Aeronautical Materials,Beijing 100095,China)

机构地区：[1]中国航发北京航空材料研究院,北京100095

出　　处：《弹性体》2022年第5期1-6,共6页China Elastomerics

基　　金：国家自然科学基金资助项目(21991125)。

摘　　要：通过测试不同温度下的硫化参数,对PFR 95HT型过氧化物硫化全氟醚橡胶和PFR 2160B型氰基硫化全氟醚橡胶的硫化动力学进行了研究。结果表明,随着硫化温度的提高,两种硫化体系的硫化速率加快,与过氧化物硫化全氟醚橡胶相比,氰基硫化反应诱导期长,但其热硫化期内反应活化能低,硫化反应速度快;过氧化物硫化诱导期短,热硫化期内硫化反应较为平稳。The vulcanization kinetics of PFR 95HT peroxide-curable perfluoroelastomer and PFR 2160B nitrile-curable perfluoroelastomer were investigated by testing the cure parameters at different temperature.The results showed that the curing rate accelerated with the increase of temperature.Compared with peroxide-curable system,the curing induction period of nitrile-curable system was longer,and the curing rate was quicker due to the lower activation energy.The curing induction period of peroxide-curable system was shorter and the curing rate was more stable.

关 键 词：全氟醚橡胶 交联结构 硫化动力学 反应活化能 

分 类 号：TQ333.93[化学工程—橡胶工业]