溶聚丁苯橡胶SSBR 2305的结构与性能  

Structure and properties of SSBR 2305

作　　者：张萍[1] 邓涛[1] 郝建港[1] 郑国军 冯志豪 赵树高[1] 

机构地区：[1]青岛化工学院高分子科学与工程学院,山东青岛266042 [2]北京燕化石油化工股份有限公司合成橡胶事业部,北京102503

出　　处：《合成橡胶工业》2002年第3期136-139,共4页China Synthetic Rubber Industry

基　　金：山东省自然科学基金资助项目(Y97F7163)。

摘　　要：研究了锡偶联溶聚丁苯橡胶SSBR2305的大分子结构、动态力学性能及加工性能。结果表明,SSBR2305的结合苯乙烯质量分数为25.64%,丁二烯链段中顺式-1,4-结构质量分数为24.14%,反式-1,4-结构质量分数为39.64%,1,2-结构质量分数为36.21%。其玻璃化转变温度为-50.5℃。动态粘弹谱仪的测定结果显示了这种溶聚丁苯橡胶良好的高抗湿滑性和低滚动阻力,其加工性能可以保证生产过程的顺利进行。The microstructure, dynamic mechanical property and processability of tin-coupled SSBR 2305 were studied. The results showed that the mass fraction of bound styrene in SSBR 2305 was 25.64%, cis-1, 4-unit, trans-1, 4-unit and 1, 2-unit in butadiene structure were 24.14%, 39.64%, 36.12% respectively. The Tg of SSBR 2305 was -50.5%. The analysis of DMA showed that tg δ of SSBR 2305 was low at about 0°C and high at about 60°C than that of SBR 1502, indicating the low rolling resistance and high wet-skid property of SSBR 2305.

关 键 词：溶聚丁苯橡胶 SSBR 2305 结构 性能 胎面胶 微观结构 动态力学性能 硫化特征 

分 类 号：TQ333.1[化学工程—橡胶工业]