分子链末端改性溶聚丁苯橡胶的结构与性能研究

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分子链末端改性溶聚丁苯橡胶的结构与性能研究
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2 w5 g& u( y! ~6 I6 h& B( ~【英文篇名】 Structure and Properties of Chain-end Modified SSBR
: f  D  Y0 V  ?3 n" D# \【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）;
【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;
: R- M) ~# A; `. F9 J3 c. p  m【文献出处】 轮胎工业, Tire Industry, 编辑部邮箱 2011年 03期  
期刊荣誉：ASPT来源刊  CJFD收录刊
; g$ ~  V4 V% D【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;
【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。
【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