BR/EVA TPV的制备及性能研究  

Preparation and Properties of BR/EVA TPV

作　　者：于文娟[1] 张艺馨[1] 王兆波[1] 

机构地区：[1]青岛科技大学材料科学与工程学院,山东青岛266042

出　　处：《橡胶工业》2011年第9期535-538,共4页China Rubber Industry

摘　　要：采用动态硫化法制备BR/乙烯-乙酸乙烯酯共聚物(EVA)热塑性硫化胶(TPV),并对其性能进行研究。结果表明:当BR/EVA共混比大于50/50时,TPV呈现出典型弹性体的应力-应变行为;当BR/EVA共混比为50/50～65/35时,TPV的硬度较低,综合物理性能良好;当BR/EVA共混比为60/40时,微米级的BR粒状物均匀分散在EVA基体中,两相界面结合良好。Thermoplastic vulcanizate（TPV） using BR and ethylene vinyl acetate copolymer（EVA） was prepared by dynamic vulcanization,and its properties were investigated.The results showed that when the blending ratio of BR/EVA was higher than 50/50,the TPV showed typical stress-strain behavior of an elastomer.When the blending ratio of BR/EVA was from 50/50 to 65/35,the Shore A hardness of TPV was low,and the comprehensive physical properties were good.When the blending ratio of BR/EVA was at 60/40,the particle-like BR in micrometer-size was uniformly dispersed in EVA matrix,and the interfacial adhesion between BR and EVA was good.

关 键 词：BR 乙烯-乙酸乙烯酯共聚物 热塑性硫化胶 动态硫化 

分 类 号：TQ333.2[化学工程—橡胶工业] TQ334.2