高熔体流动速率薄壁注塑聚丙烯专用料的结构与性能分析  

Analysis of structure and performance of thin-walled injection-molded polypropylene with high melt flow rate

作　　者：包璐璐 刘义 韩李旺 杨廷杰 孟鑫[2] 郭晓东 王勇 苟荣恒 李国锋 张明辉 BAO Lulu;LIU Yi;HAN Liwang;YANG Tingjie;MENG Xin;GUO Xiaodong;WANG Yong;GOU Rongheng;LI Guofeng;ZHANG Minghui(CHN ENERGY Xinjiang Chemical Limited Company,Urumqi 831400,China;School of Chemical Engineering,East China University of Science and Technology,Shanghai 201100,China)

机构地区：[1]国家能源集团新疆化工有限公司,乌鲁木齐831400 [2]华东理工大学化工学院,上海201100

出　　处：《中国塑料》2021年第12期27-31,共5页China Plastics

基　　金：国家能源集团科技创新项目(GJNY-20-22)。

摘　　要：采用多种分析测试方法,对3类高熔体流动速率薄壁注塑聚丙烯(PP)专用料的熔融结晶性能、光学性能、分子量分布、力学性能、毛细管流变性能、热收缩性能进行了分析研究。结果表明,K1860与2种市售主流PP1、PP2各项性能相当,其中K1860分子量分布相对PP1、PP2较窄,弯曲性能、拉伸性能更优,可满足大型薄壁注塑制品的生产要求。The melt crystallization properties,optical properties,molecular weight distribution,mechanical properties,capillary rheological properties,and thermal shrinkage properties of three types of thin-walled injection-molded polypropylenes were investigated.The results indicated that K1860 has the same properties with the commercial PP products,PP1 and PP2,and its molecular weight distribution was narrower than PP1 and PP2.The bending and tensile properties of the K1860 were better than those of PP1 and PP2.The K1860 can completely meet the requirements for the production of large thin-walled injection-molded products.

关 键 词：聚丙烯 高熔体流动速率 薄壁 注塑 热性能 光学性能 力学性能 

分 类 号：TQ325.15[化学工程—合成树脂塑料工业]