分子链末端改性溶聚丁苯橡胶的结构与性能研究

baozang

分子链末端改性溶聚丁苯橡胶的结构与性能研究
   
【英文篇名】 Structure and Properties of Chain-end Modified SSBR
【作者中文名】 王雷; 张兴英; 赵素合;
【作者英文名】 WANG Lei; ZHANG Xing-ying; ZHAO Su-he（Beijing University of Chemical Technology; Beijing 100029; China）;
) @9 J9 Z# ]7 I【作者单位】 北京化工大学北京市新型高分子材料制备与加工重点实验室;
# |1 x7 |' L" y& ]( g1 I【文献出处】 轮胎工业, Tire Industry, 编辑部邮箱 2011年 03期  
/ O* U: J1 z3 y3 Z6 f' D6 R期刊荣誉：ASPT来源刊  CJFD收录刊
1 ^  `1 d! j- f2 b. m【关键词】 胎面胶; 溶聚丁苯橡胶; 炭黑; 微观结构; 动态力学性能; 滚动阻力;
【英文关键词】 tread compound; solution styrene-butadiene rubber; carbon black; micro-structure; dynamic property; rolling resistance;
; R) ]5 w+ i! t2 y$ `* e& }【摘要】 采用阴离子活性/可控聚合方法制备了溶聚丁苯橡胶(SSBR)、大体积官能团叔丁基二苯基氯硅烷制备封端改性SSBR(T-SSBR)和锡偶联星形SSBR,并对其结构和性能进行研究。结果表明:与未改性SSBR硫化胶相比,T-SSBR和星形SSBR硫化胶的炭黑分散性较好,达到纳米填料纳米尺度的分散,滞后损失较小,动态力学性能较好,拉伸强度、拉断伸长率、撕裂强度和回弹值较大;与星形SSBR硫化胶相比,T-SSBR硫化胶的拉伸强度、拉断伸长率和撕裂强度较小,动态压缩疲劳温升较低,抗湿滑性能较好,抗动态切割性能略低。
! I0 v6 H! A' }4 C1 M【英文摘要】 Solution polymerized styrene-butadiene rubber(SSBR),SSBR with end-capping modification(T-SSBR) by tert-butylchlorodiphenylsilane(large volume functional groups) and star-shaped SSBR were prepared by living/controlled anionic polymerization,and the structure and properties of those SSBRs were investigated.The results showed that,compared with unmodified SSBR,the dispersion of carbon black in T-SSBR and star-shaped SSBR vulcanizates were better,and carbon black in T-SSBR and star-shaped SSBR vulcanizates