聚烯烃热塑性弹性体接枝苯乙烯增韧废旧聚苯乙烯的研究  

Study on Toughening of Waste Polystyrene with Polyolefin Thermoplastic Elastomers Grafted Styrene

作　　者：曹贤武[1] 梁健飞 王瑾 何光建[1] CAO Xian-wu, LIANG Jian-fei, WANG Jin, HE Guang-jian(The Key Laboratory of Polymer Processing Engineering of Ministry of Education, South China University of Technology; National Engineering Research Center of Novel Equipment for Polymer Processing, Guangzhou 510640, China)

机构地区：[1]聚合物成型加工工程教育部重点实验室华南理工大学聚合物新型成型装备国家工程研究中心,广东广州510640

出　　处：《塑料工业》2018年第9期58-62,共5页China Plastics Industry

基　　金：国家重点研发计划(2016YFB030200);广东省科技计划项目(2016B020242002)

摘　　要：以废旧聚苯乙烯(r PS)为基体,加入聚烯烃热塑性弹性体(POE)以及POE的苯乙烯共聚物(POE-gSt)作为增韧剂,共混挤出造粒,对复合材料的力学性能和流变性能进行了表征。通过对比POE-g-St添加前后以及POE-g-St不同添加量下材料的力学性能、流变性能以及接触角来研究POE-g-St的加入对回收聚苯乙烯的增韧增容效果。结果表明,当r PS∶POE-g-St∶POE质量比=70∶15∶15,回收聚苯乙烯的冲击强度由3. 011 k J/m2提高到5. 837 5k J/m2,POE与r PS的相容性也得到了改善。Waste polystyrene （rPS） as the matrix and POE grafted styrene copolymer （POE-g-St） as granulated. The mechanical and rheological properties resins, polyolefin thermoplastic elastomer （POE） toughening agent were blended, extruded and of composite materials were characterized. The toughening and compatibilization effect of POE-g-St on the composite was studied by comparing mechanical and rheological properties and the contact angle. The results show that when the mass ratio of rPS ： POE-g-St ： POE is 70 ： 15 ： 15, the impact strength of recycled polystyrene is increased from 3.011 kJ/m2 to 5. 837 5 kJ/m2, and the compatibility of POE and rPS is also improved.

关 键 词：废旧聚苯乙烯 增韧 相容性 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]