VMQ/LLDPE动态硫化热塑性弹性体的制备与性能  

Preparation and properties of dynamically vulcanized thermoplastic elastomers based on VMQ and LLDPE

作　　者：冯雪雁[1] 章永化[1] 陈丽[1] 吴国峰[1] 

机构地区：[1]华南理工大学高分子系,广东广州510640

出　　处：《弹性体》2007年第2期42-45,共4页China Elastomerics

摘　　要：采用动态硫化法制备了甲基乙烯基硅橡胶(VMQ)/线形低密度聚乙烯(LLDPE)热塑性弹性体。考察了共混比、硫化剂种类、动态硫化时间对VMQ/LLDPE热塑性弹性体力学性能的影响,并研究了VMQ/LLDPE热塑性弹性体的热失重情况。结果表明:共混比为60/40、选用DBPH为硫化剂、动态硫化时间为5 min时,VMQ/LLDPE热塑性弹性体具有较好的力学性能。In this study, the blends of methylvinylsilicon rubber （VMQ） and linear low density polyethylene （LLDPE） thermoplastic elastomer have been prepared by dynamical vulcanization. Effects of blending ratio, the type of vulcanization agents, dynamical vulcanization time on the properties of VMQ/LLDPE thermoplastic elastomer were investigated. Its thermal stability was tested by Thermogravimetry analysis. The results show that the VMQ/LLDPE thermoplastic elastomer has better mechanical properties when the blending ratio is 60/40, DBPH is selected as the vulcanization agent and the dynamical vulcanization time is five minutes.

关 键 词：甲基乙烯基硅橡胶 线形低密度聚乙烯 动态硫化 热塑性弹性体 

分 类 号：TQ334.9[化学工程—橡胶工业]