报废汽车聚丙烯零部件经二次破碎、筛分后，采用高压电晕-静电分选技术进行二级分选提纯，对分选提纯工艺进行了优化；用由50%（质量分数，下同）8303K聚丙烯、30% 7467聚烯烃弹性体、3.5% KH-560硅烷偶联剂、3.5%聚乙烯蜡等组成的改性剂对提纯后的聚丙烯物料进行共混改性并注塑成型，研究了改性前后物料的力学及理化性能。结果表明：破碎筛分后，粒径在1.25 mm以下的物料以长条片状聚丙烯为主，混有少量玻璃纤维、塑料粉以及已解离铜丝；分选提纯时第一辊转速为114 r·min
-1，第二辊转速为33 r·min
-1，得到质量分数约78%的聚丙烯，而质量分数超过13%的金属被分选出；提纯得到的聚丙烯经改性后，其力学性能提高，满足汽车生产厂家的使用要求。
所属栏目
材料性能及应用
收稿日期
2017/6/272017/10/20
作者单位
路洪洲:华东理工大学资源与环境工程学院, 上海 200237
马鸣图:中国汽车工程研究院股份有限公司, 重庆 401122
路贵民:华东理工大学资源与环境工程学院, 上海 200237
备注
路洪洲(1981-),男,黑龙江大庆人,高级工程师,博士研究生
引用该论文:
LU Hongzhou,MA Mingtu,LU Guimin.Properties of Recycled and Modified Materials from Polypropylene Components in Vehicle[J].Materials for mechancial engineering,2017,41(12):64～68
路洪洲,马鸣图,路贵民.汽车聚丙烯零部件回收及其改性后物料的性能[J].机械工程材料,2017,41(12):64～68
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