中国塑料 ›› 2007, Vol. 21 ›› Issue (4): 77-81.

• 助 剂 • 上一篇    下一篇

季铵盐类阳离子单体接枝聚丙烯及其性能研究

张青,巴信武*,白利斌
  

  1. 河北大学化学与环境科学学院,河北保定071002
  • 出版日期:2007-04-26 发布日期:2021-05-20

Quaternary Ammonium Salt Grafted Polypropylene and Its Properties

ZHANG Qing,BA Xin-wu*,BAI Li-bin   

  1. College of Chemistry&Environment Science, Hebei University,
    Banding 071002,China
  • Online:2007-04-26 Published:2021-05-20

摘要: 以甲基丙烯酞氧乙基三甲基氯化铵 ( DMC)、苯乙烯(St),聚丙烯(PP)为原料,采用多单体熔融接枝的方法,制备了含季铰盐基团的功能化的聚丙烯。考察了几种反应因素对接枝反应的影响,测试了接枝物的力学性能,利用示差扫描量热仪、偏光显微镜研究了接枝产物的结晶性能。结果表明:引发剂过氧化二异丙苯(DCP)用量为0.6份时,DMC与St的物质的量之比为1:1时,DM《的接枝效果最佳,与纯PP相比,其拉伸强度、冲击强度基本不变,晶核密度大幅增加,总结晶速率加快,半结晶时间((tm)缩短,结晶温度(Tc)提高。

关键词: 聚丙烯, 甲基丙烯酞氧乙基三甲基氯化钱, 苯乙烯, 熔融接枝, 季铵盐基团

Abstract: Polypropylene was melt grafted with 2-trimethyla immonium ethyl methacrylate chloride(DMC)and styrene(St). When the content of initiator ( dicumyl peroxide, DCP) was 0.6 phr, molar ratio of DMC and St was 1:1, a maximum grafting of DMC was achieved. The tensile and impact strength of the grafted PP were similar to neat PP. During cry istallization, the nucleation density and the total crystallization rate of the grafted PP were larger, the half time of crystallization ( t1/2) was shorter and the crystallization temperature( Tc) was higher than neat PP.

Key words: polypropylene, 2-trimethylammonium ethyl methacrylate chloride, styrene, melt grafting;ammonium group

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