硅烷化改性乳聚丁苯橡胶的制备及动态性能研究

采用反应加工方法，以氢化钠（NaH）作活性剂、三乙基氯硅烷（Et₃SiCl）作改性剂制备硅烷化改性乳聚丁苯橡胶（Si-ESBR），并对其动态性能进行研究。Si-ESBR最佳改性条件为：ESBR　50g，NaH　0.04mol，Et₃SiCl　0.04mol，加人NaH后的反应时间　15min，加人Et₃SiCl后的反应时间　15min，反应温度　80℃。ESBR硅烷化改性后胶料的Payne效应明显降低，填料的网络化效应得到改善，动态能量损耗减小。;The silane modified ESBR（Si-ESBR） was prepared by reaction processing method and using NaH as activating agent and Et₃SiCl as modifier，and the dynamic properties of Si-ESBR were studied.The optimum reaction condition was as follows：ESBR 50g，NaH 0.04mol，Et3SiCl 0.04 mol，reaction time after adding NaH 15 min，reaction time after adding Et₃SiCl 15 min，reaction temperature 80 ℃.With the modification，the Payne effect of Si-ESBR decreased significantly，the filler network improved effectively，and the dynamic energy loss decreased