SEBS加氢度与耐热氧老化性能的关系  

Relationship between hydrogenation degree of SEBS and thermo-oxidative aging performance

作　　者：严绍敏 苏滢 黎春荣 龙锦 YAN Shaomin;SU Ying;LI Chunrong;LONG Jin(Rubber Department of Baling Petrochemical Company of China Petrochemical,Yueyang 414014,China)

机构地区：[1]中国石化巴陵石化公司橡胶部,湖南岳阳414014

出　　处：《弹性体》2020年第5期36-39,共4页China Elastomerics

摘　　要：研究了苯乙烯-丁二烯-苯乙烯聚合物(SBS)聚丁二烯段1,4-与1,2-结构双键的加氢速度,并采用差示扫描量热仪(DSC)测试不同加氢度的苯乙烯-乙烯/丁烯-苯乙烯聚合物(SEBS)的氧化诱导期(OIT),考察加氢度对SEBS耐热氧化性能的影响。结果表明,加氢度越高,SEBS的OIT越长,耐热氧老化性能越佳。The hydrogenation rate of the double bond in the segment 1,4 and 1,2-structure of the styrene-butadiene-styrene(SBS)were studied.The oxidation induction periods of SEBSs with different hydrogenation degrees were measured by differential scanning calorimeter.The effect of the hydrogenation degree of SEBS on heat-resistant oxidation performance was investigated.The results show that the higher the hydrogenation degree is,the longer the oxidation induction period of SEBS is,and the better the heat-resistant oxygen aging performance is.

关 键 词：苯乙烯-乙烯/丁烯-苯乙烯聚合物 加氢 耐热氧老化 

分 类 号：TQ333.1[化学工程—橡胶工业]