高胶粉、SBS和SEBS增韧rPS复合材料结构与性能研究  

Research on the structure and properties of rPS composites toughened by high rubber powder,SBS,and SEBS

作　　者：吴波 周敏 高灵强 龚燚 Wu Bo;Zhou Min;Gao Lingqiang;Gong Yi(Sichuan Yibin Plus Packaging Material Co.LTD.,Yibin 644007,Sichuan,China)

机构地区：[1]四川省宜宾普拉斯包装材料有限公司,四川宜宾644007

出　　处：《橡塑技术与装备》2024年第12期41-45,共5页China Rubber/Plastics Technology and Equipment

摘　　要：分别采用高胶粉、SBS和SEBS对回收聚苯乙烯(rPS)进行增韧改性研究,通过对增韧rPS改性材料缺口冲击性能、拉伸性能、弯曲性能、熔体流动性能以及SEM的分析测试,对增韧rPS共混物的机械力学性能、熔体流动性能、微观结构和增韧机理进行了研究分析。结果显示:高胶粉、SBS和SEBS对rPS均具有增韧作用。SEBS增韧rPS效果最好,与基体形成互穿网络;SBS次之,形成了强的两相界面结合;高胶粉虽能起到一定增韧作用,但相容性差导致增韧效果不明显,SBS和SEBS均可作为rPS良好的增韧剂。This article investigates the toughening modification of recycled polystyrene(rPS)using high rubber powder,SBS,and SEBS.The mechanical properties,melt flow properties,microstructure,and toughening mechanism of the toughened rPS blend were studied and analyzed through analysis and testing of the notch impact performance,tensile performance,bending performance,melt flow performance,and SEM of the toughened rPS modified material.The results showed that high rubber powder,SBS,and SEBS all have toughening effects on rPS.SEBS has the best toughening effect on rPS,forming an interpenetrating network with the matrix;SBS followed closely,forming a strong interfacial bonding between the two phases;Although high rubber powder can play a certain toughening role,poor compatibility leads to unclear toughening effect.Both SBS and SEBS can be used as good toughening agents for rPS.

关 键 词：回收聚苯乙烯 高胶粉 SBS SEBS 相容性 增韧改性 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]