SIBR与NR/SSBR共混物结构与性能的比较  

Morphology and properties of two kinds of SIBR and NR/SSBR blends

作　　者：邹华[1] 赵素合[1] 张兴英[1] 王新[1] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029

出　　处：《合成橡胶工业》2001年第6期331-333,共3页China Synthetic Rubber Industry

基　　金：国家自然科学基金资助项目(29874005)

摘　　要：用透射电镜、扫描电镜、动态粘弹谱仪等研究了星形两嵌段SIBR、星形无规SIBR的相态结构、静态力学性能、磨耗性能、动态生热性能及动态粘弹性能,并与40/60(质量比)的NR/SSBR共混物进行了对比。结果表明,星形两嵌段SIBR呈宏观均相、微观分相的特点,其力学和磨耗性能都优于其他两种胶料,而且动态压缩生热也较低,对冰雪、湿滑路面的抓着性好,其性能更接近对高性能轮胎胎面胶全面的性能要求。By means of several measures such as TEM, SEM and dynamic mechanical analysis, morphology, static mechanical properties, wear ability, dynamic heat build-up and dynamic viscoelasticity of star-shaped and di-block SIBR, star-shaped and random SIBR were studied, and compared with NR/SSBR (40/60) blend. The results showed that star-shaped and di-block SIBR was characterized by macrohomogeneity and microheterogeneity, its mechanical properties and wear ability were superior to those of other two rubbers. Moreover, the dynamic heat build-up of star-shaped and di-block SIBR was lower and road-hugging in snow and wet condition was better, so the properties of star-shaped and di-block SIBR could be closer to the overall performance requirement of the ideal tire tread rubber.

关 键 词：苯乙烯-异戊二烯-丁二烯橡胶 集成橡胶 相态 力学性能 磨耗性能 动态粘弹性能 

分 类 号：O632[理学—高分子化学]