滑石粉填充共聚聚丙烯划痕形变特性研究  

Study of Scratch Deformation Characteristics of Talc Filled Polypropylene Copolymer

作　　者：李永华 程冬霞[2] 谢耀文[2] 朱传文[2] 杨波 罗忠富 宁凯军 叶南飚 

机构地区：[1]金发科技股份有限公司,广东广州510520 [2]神龙汽车有限公司,湖北武汉430056

出　　处：《塑料工业》2011年第9期49-51,56,共4页China Plastics Industry

摘　　要：通过扫描电镜(SEM)研究了滑石粉填充共聚聚丙烯(Co-PP)划痕形变的特性。研究表明:滑石粉填充共聚PP的划痕形变是由于"黏滑"现象造成的,拉伸变形纤维化、空洞、滑石粉裸露及滑石粉与基材界面结合差导致了划痕发白产生。随着耐划伤性能提高,剪切屈服区宽度与"鱼纹"现象降低,"黏滑"现象消失。通过对划痕形变特性的研究,将对开发良好耐划伤性能的PP材料提供帮助。The scratch deformation behavior of talc-containing polypropylene copolymer （Co-PP） had been studied by SEM. The study indicated that the stick-slip phenomenon was responsible for the scratch deformation of talc-filled Co-PP. Tensile deformed of fibrils, voids, naked talc and interfacial deboning between the talc and matrix attributed to the occurrence of scratch whitening. With scratch resistance increasing, the wide of shear yield area and ＂fish-scale＂ phenomenon being decreased, the stick-slip phenomena was invisible. Study of the scratch deformation behavior will assist the development of good scratchresistant PP.

关 键 词：划痕形变 聚丙烯 滑石粉 耐划伤 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]