端基官能化溶聚丁苯橡胶及其复合材料的制备、结构与性能研究  

Preparation,structures and properties of end-functionalized SSBR and its composites

作　　者：刘晓[1] 赵素合[1,2] 张兴英[1,2] 李小林[1] 白玉[1] 

机构地区：[1]北京化工大学北京市新型高分子材料制备与成型加工重点实验室,北京100029 [2]北京化工大学纳米材料先进制备技术与应用科学教育部重点实验室,北京100029

出　　处：《橡胶工业》2009年第6期325-332,共8页China Rubber Industry

基　　金："十五"国家科技攻关项目(2004BA310A41);国家自然科学基金资助项目(50573005)

摘　　要：采用阴离子聚合方法制备封端率为71%～76%的末端被烷氧基硅烷官能化的溶聚丁苯橡胶(A-SSBR),研究A-SSBR及白炭黑/A-SSBR复合材料的结构和性能。结果表明,在白炭黑用量相同的条件下,白炭黑/A-SSBR复合材料比白炭黑/SSBR复合材料具有更优异的填料分散性、物理性能、抗湿滑性能和滚动阻力特性;其中A-SSBR与少量白炭黑经加热充分缩合后制备的白炭黑/A-SSBR复合材料各项性能最优。The functionalized solution-polymerized styrene-butadiene rubber having alkoxysilane group on chain-ends（A-SSBR） with end-functionalizing efficiency up to 71% -76% was prepared by anionic polymerization. The structures and properties of both A-SSBR and silica/A-SSBR composites were investigated. The results showed that, silica/A-SSBR composites exhibited better filler disper- sion,physical properties, wet skid resistance and lower rolling resistance than silica/SSBR composite based on the same silica content. In addition, the properties of the silica/A-SSBR composite prepared by the process of heating-condensation between silica and A-SSBR were at their best.

关 键 词：溶聚丁苯橡胶 白炭黑 烷氧基硅烷 端基官能化 动态性能 

分 类 号：TQ330.383[化学工程—橡胶工业] TQ333.1