改进型中乙烯基聚丁二烯橡胶性能的研究Ⅲ流变性能

Study on Properties of Modified MVBR Part 3Rheological Properties

系统研究线形中乙烯基聚丁二烯橡胶（ＬＭＶＢＲ）、星形中乙烯基聚丁二橡胶（ＳＭＶＢＲ）、线形１，４１，２立构二嵌段中乙烯基聚丁二烯橡胶（ＬＢＭＶＢＲ）和星形１，４１，２立构二嵌段中乙烯基聚丁二烯橡胶（ＳＢＭＶＢＲ）的流变性能，考察了不同加工条件对中乙烯基聚丁二烯（ＭＶＢＲ）生胶、混炼胶流变性能的影响，结果发现ＬＢＭＶＢＲ混炼胶具有高剪切低粘度、低剪切高粘度的优异特性。

The rheological properties of LMVBR,SMVBR,LBMVBR and SBMVBR were systematically studied and the influence of various processing conditions on the rheological properties of MVBR and MVBR based mix was investigated.The results showed that LBMVBR featured low viscosity at high shearing and high viscosity at low shearing;SMVBR gave the best overall rheological properties.