高乙烯基溶聚丁苯橡胶C2557A的结构与性能研究  

Structure and Properties of High-vinyl Solution-polymerized SBR-C2557A

作　　者：孙举涛[1] 孙佳佳[1] 张萍[1] 赵树高[1] 徐燕 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042 [2]中国石油独山子石化分公司研究院,新疆克拉玛依833600

出　　处：《橡胶工业》2013年第7期404-407,共4页China Rubber Industry

基　　金：国家自然科学基金资助项目(51103077);山东省高等学校科技计划项目(J11LD07);山东省自然科学基金资助项目(ZR2011EMQ014)

摘　　要：研究高乙烯基溶聚丁苯橡胶(SSBR)C2557A的结构和性能,并与乳聚丁苯橡胶(ESBR)1712和SSBR-T2530进行对比。结果表明:与ESBR-1712和SSBR-T2530相比,SSBR-C2557A的数均相对分子质量最大,相对分子质量分布指数介于两者之间,而其链结构中乙烯基质量分数较高。SSBR-C2557A硫化胶的高弹态动态模量较大,玻璃化温度在0℃附近,其抗湿滑性能优于ESBR-1712和SSBR-T2530,但损耗因子和压缩疲劳温升较高。The structure and properties of high-vinyl solution-polymerized SBR（SSBR） C2557A were investigated, and compared with those of emulsion-polymerized SBR（ESBR） 1712 and SSBR- T2530. The results showed that, compared with ESBR-1712 and SSBR-T2530, SSBR-C2557A pos- sessed higher vinyl content and larger number-average relative molecular weight, and its relative mo- lecular weight distribution index ranged between those of ESBR-1712 and SSBR-T2530. The vulcani- zates of SSBR-C2557A possessed higher dynamic modulus at large elastic state and the glass transition temperature close to 0 ＊C. The wet skid resistance of SSBR-C2557A vulcanizates was better than that of ESBR-1712 and SSBR-T2530, but the loss factor and compression fatigue temperature rise were higher.

关 键 词：高乙烯基溶聚丁苯橡胶 乳聚丁苯橡胶 微观结构 抗湿滑性能 

分 类 号：TQ333.1[化学工程—橡胶工业]