β成核剂改性PP力学性能与结晶性能的研究  

Research of Mechanical Properties and Crystal Properties of PP Modified by β-Nucleating Agent

作　　者：邱敦瑞[1] 左胜武[1] 徐振明[1] 尚小杰[1] 

机构地区：[1]中国石化扬子石油化工有限公司南京研究院,江苏南京210048

出　　处：《现代塑料加工应用》2014年第5期37-40,共4页Modern Plastics Processing and Applications

摘　　要：使用X射线衍射仪（XRD）和差示扫描量热仪（DSC）研究了β成核剂（CHJ1和CHJ2）对聚丙烯（PP）结晶性能和力学性能的影响。结果表明：CHJ1是一种高效的β晶成核剂,β晶相对含量可达74%~88%,其可使PP的结晶温度向高温方向偏移;CHJ1的加入提高了PP的冲击性能和热变形温度,其简支梁冲击强度可提高2.5倍,热变形温度最高可达109℃,添加质量分数0.1%CHJ1的PP可应用于锂电池隔膜的成型。The crystal properties and mechanical properties of polypropylene（PP）withβ-nucleating agent（CHJ1and CHJ2）were studied by XRD and DSC.The results show that CHJ1 is a effectiveβ-nucleating agent and the content ofβ-crystalline inβ-nucleating agent modified PP is up to 74%~88%,the DSC results show that crystalline peak is shifted to the high temperature direction after adding CHJ1.Impact strength and thermal deformation temperature ofβ-nucleating agent modified PP are greatly improved.Charpy impact strength ofβ-modified PP is improved 2.5times.The maximum of thermal deformation temperature is up to 109 ℃.PP resins added 0.1% CHJ1 can be applied to moulding of Li-battery separator.

关 键 词：聚丙烯 Β成核剂 结晶性能 力学性能 锂电池隔膜 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]