动态硫化乙烯-辛烯共聚物/硅橡胶热塑性弹性体性能的影响因素  

Influence factors of properties of dynamically vulcanized ethylene-octene copolymer/silicone rubber thermoplastic elastomer

作　　者：李建芳[1] 管恩政 肖建斌[1] 褚敏 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042 [2]青岛赛轮股份有限公司,山东黄岛266500 [3]优科豪马橡胶有限公司,上海200336

出　　处：《合成橡胶工业》2013年第3期225-229,共5页China Synthetic Rubber Industry

基　　金：国家自然科学基金资助项目(951073085)

摘　　要：采用Haake转矩流变仪制备了乙烯-辛烯共聚物(POE)/硅橡胶(MVQ)动态硫化热塑性弹性体(TPV),考察了共混温度、转速、动态硫化时间对POE/MVQ共混物硫化特性、TPV物理机械性能及加工特性的影响,观察了硫化剂不同投料方式下TPV的外观形貌。结果表明,在共混温度为130℃、转速为50～60 r/min、动态硫化时间约为8 min的条件下,采用POE与MVQ混匀后分3批加入硫化剂的方式,所得POE/MVQ TPV的综合性能较好,表面光滑且有韧性。The ethylene-octene copolymer （POE） / silicone rubber （ MVQ ） thermoplastic elas-tomer （TPV） was prepared by using Haake torque rheometer, the effects of blending temperature, rota-tion speed, dynamic vulcanization time on the vul-canization characteristics of POE/MVQ blends and processing characteristics and mechanical properties of POE/MVQ TPV were studied synthetically, and the appearances of POE/MVQ TPV with different vulcanizing agent feeding sequences were Observed. The results showed that under the conditions ofblending temperature 130℃ , rotation speed 50 - 60 r/min, vulcanization time 8 min, and using vul-canizing agent three-step feeding mode after mixing POE and MVQ evenly, the POE/MVQ TPV showed better comprehensive properties and smooth and tough surface.

关 键 词：乙烯-辛烯共聚物 硅橡胶 转矩流变仪 动态硫化 热塑性弹性体 硫化特性 物理机械性能 加工特性 

分 类 号：TQ334.9[化学工程—橡胶工业]