中国塑料 ›› 2021, Vol. 35 ›› Issue (12): 27-31.DOI: 10.19491/j.issn.1001-9278.2021.12.005

• 材料与性能 • 上一篇    下一篇

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

包璐璐1(), 刘义1, 韩李旺1, 杨廷杰1, 孟鑫2, 郭晓东1, 王勇1, 苟荣恒1, 李国锋1, 张明辉1   

  1. 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
  • 收稿日期:2021-05-26 出版日期:2021-12-26 发布日期:2021-12-22
  • 作者简介:包璐璐(1988—),女,工程师,主要研究方向为煤基聚烯烃材料,lulu.bao@chnenergy.com.cn
  • 基金资助:
    国家能源集团科技创新项目(GJNY-20-22)

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

BAO Lulu1(), LIU Yi1, HAN Liwang1, YANG Tingjie1, MENG Xin2, GUO Xiaodong1, WANG Yong1, GOU Rongheng1, LI Guofeng1, ZHANG Minghui1   

  1. 1.CHN ENERGY Xinjiang Chemical Limited Company,Urumqi 831400,China
    2.School of Chemical Engineering,East China University of Science and Technology,Shanghai 201100,China
  • Received:2021-05-26 Online:2021-12-26 Published:2021-12-22

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。

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

Abstract:

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.

Key words: polypropylene, high melt flow rate, thin?wall, injection molding, thermal property, optical performance, mechanical property

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