中国塑料 ›› 2011, Vol. 25 ›› Issue (11): 56-60 .DOI: 10.19491/j.issn.1001-9278.2011.11.011

• 材料与性能 • 上一篇    下一篇

苯乙烯-甲基丙烯酸钠离聚物的合成及其对PET结晶行为的影响

仲小亮 李忠辉 陈雪梅 陈国建   

  1. 华东理工大学
  • 收稿日期:2011-07-30 修回日期:1900-01-01 出版日期:2011-11-26 发布日期:2011-11-26

The Synthesis of Styrene-Sodium Methacrylate Ionomer and Crystallization Behavior of PET/Styrene-Sodium Methacrylate Ionomer Composites

  

  • Received:2011-07-30 Revised:1900-01-01 Online:2011-11-26 Published:2011-11-26

摘要: 采用溶液法制备苯乙烯-甲基丙烯酸钠(SMA-Na)离聚物,研究其对聚对苯二甲酸乙二酯(PET)的结晶及熔融行为的影响。结果表明:SMA-Na是PET的良成核剂,加入1wt %的苯乙烯-甲基丙烯酸钠使PET的熔融结晶温度(Tmc)提高了17.9 ℃,冷结晶温度(Tcc)降低了17.3℃,显著的提高了PET在高温区和低温区的结晶速度。加入离聚物,使得PET球晶变得更加细化完善。

关键词: 聚对苯二甲酸乙二醇酯, 苯乙烯-甲基丙烯酸钠, 离聚物, 结晶行为

Abstract: Styrene-Sodium Methacrylate(SMA-Na) was synthesized by solution technique.The effect of ionomer on crystallization and melting behaviors of polyethylene terephthalate(PET) was investigated.The results show that with the addition of 1wt% SMA-Na ,the the Tmc of PET increased 17.9℃, and the Tcc decreased 17.3℃,accelerating the crystallization rate of PET both at high temperature region and low temperature region. The spherulites of PET/ SMA-Na Composites was more perfect than neat PET.

Key words: poly(ethylene terephthalate), styrene-sodium methacrylate, ionomer, crystallization