原位增容剂和助交联剂对胶粉/聚丙烯热塑性弹性体性能的影响  

Effect of In-situ Compatibilizer and Co-gent on Properties of Rubber Powder/Polypropylene Thermoplastic Elastomer

作　　者：李培军[1] 赵鑫[1] 毕薇娜[1] 赵树高[1] 杨士山[2] 李鹏[2] 

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,青岛266042 [2]西安近代化学研究所,西安710065

出　　处：《特种橡胶制品》2017年第2期10-13,39,共5页Special Purpose Rubber Products

基　　金：山东省优秀中青年科学家科研奖励基金(No:BS2013CL026)

摘　　要：采用熔融共混法制备了共混比为70/30的胶粉/聚丙烯热塑性弹性体,并考察了过氧化物和硫黄用量对其微观结构、混炼特性和力学性能的影响。结果表明,加入过氧化物能明显提高胶粉/聚丙烯的相容性和弹性体力学性能,同时也造成了聚丙烯基体的降解。加入硫黄可交联聚丙烯相,并提高胶粉/聚丙烯热塑性弹性体性能。Rubber powder（RP）/polypropylene（PP）thermoplastic elastomer was prepared by melt blending,and effects of content of peroxide and sulfur on microstructure,mixing characteristics and mechanical properties of RP/PP blends was researched.The results showed that the compatibility and mechanical properties of RP/PP were significantly improved by adding peroxide,at the same time,the degradation of PP matrix was also caused.Polypropylene phase was crosslinked by adding sulfur,and the mechanical properties of RP/PP thermoplastic elastomer were further improved.

关 键 词：胶粉 聚丙烯 热塑性弹性体 过氧化物 硫黄 

分 类 号：TQ334.2[化学工程—橡胶工业]