星型杂臂橡胶SIBR结构与性能研究  

Study on Structure and Properties of Miscellaneous Armed Rubber SIBR

作　　者：崔英 王琳[2] 龚光碧 董静 陶惠平 张华强 宋同江 韩丙勇[3] 

机构地区：[1]中国石油兰州化工研究中心,甘肃兰州730060 [2]北京有色金属研究总院,北京100088 [3]北京化工大学,北京100029

出　　处：《当代化工》2014年第4期494-497,共4页Contemporary Chemical Industry

摘　　要：采用溶液聚合法,以环己烷为溶剂、以THF和SDBS结构调节剂、以DVB为偶联剂,制备了星型杂臂橡胶SIBR,由于其兼具高的抗湿滑性能及低的滚动阻力,被广泛应用于高性能轮胎中。研究了星型杂臂橡胶SIBR相分离结构、臂数、w(3,4-PI)结构含量、苯乙烯含量等对物理机械性能及加工性能的影响。结果表明,通过调节共聚物组成和微观结构可获得不同的相形态。随臂数的增加,拉伸强度、扯断伸长率增大。随w(3,4-PI)结构含量增加,拉伸强度、扯断伸长率、300%定伸模量增大。随着苯乙烯含量增大,抗湿滑性增大,滚动阻力也相应有所增加。Miscellaneous armed rubber SIBR was prepared by solution polymerization with cyclohexane as solution, THF and SDBS as structure regulator, DVB as coupling agent. It was widely used in high performance tire because of its high wet skid resistance and low rolling resistance. Effect of phase separation structure, arm number, ω（3,4-PI） and content of styrene on mechanical property and processing property was investigated. The results show that, different phase morphology can be obtained by the regulation of copolymer composition and microstructure; Tensile strength and elongation at break increase with increasing of arm number of rubber;Tensile strength, elongation at break and 300%tensile strength increase with increasing of ω（3,4-PI） content;Wet skid resistance and rolling resistance increase with increasing of styrene content.

关 键 词：杂臂橡胶 抗湿滑性 滚动阻力 异戊二烯 

分 类 号：TQ330[化学工程—橡胶工业]