一种用于轮毂装饰盖的聚丙烯材料  

A New Polypropylene for Vehicle Wheel Cover

作　　者：石海琳[1] 谢晶[1] 陶昊 SHI Hai-lin;XIE Jing;TAO Hao(Pan Asia Technical Automotive Center Co.,Ltd.,Shanghai 201201,China)

机构地区：[1]泛亚汽车技术中心有限公司

出　　处：《上海塑料》2019年第3期41-47,共7页Shanghai Plastics

摘　　要：为了改善车轮毂装饰盖材料在零件应用上遇到的熔接痕强度不足、熔接痕外观明显等问题,开发了一种新型的自制矿物纤维增强聚丙烯(PP)材料,替代钢制或矿物填充尼龙(PA)材料。研究发现:矿粉种类、体系中橡胶含量对熔接痕强度有明显的负面影响;矿物纤维含量越高,熔接痕越明显;矿物纤维增强PP材料比矿物纤维增强PA材料在低温落球冲击和翘曲变形中表现出更优的性能。A novel mineral fiber filled polypropylene(PP) was studied,which could potentially replace the steel or mineral filled nylon(PA) used for vehicle wheel cover,to improve weld-line strength,poor appearance in the vehicle part applications.It was found that the mineral types and the ratio of elastomer could influence the strength of weld-lines,and the higher the ratio of mineral fiber was,the worse the appearance of weld-lines was.Compared with mineral fiber filled PA,mineral fiber filled polypropylene shew better performance in cold impact strength and anti-warpage deformation.

关 键 词：车轮毂装饰盖 聚丙烯 尼龙 熔接痕 低温落球冲击 翘曲变形 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]