中国塑料 ›› 2011, Vol. 25 ›› Issue (09): 48-55 .DOI: 10.19491/j.issn.1001-9278.2011.09.011

• 材料与性能 • 上一篇    下一篇

PA66/可反应性纳米SiO2复合材料的非等温结晶动力学

徐翔民 葛玉萍 张予东 张治军   

  1. 黄河水利职业技术学院机电工程系 黄河水利职业技术学院机电系 河南大学化学化工学院 ,精细化学与工程研究所 河南大学特种功能材料教育部重点实验室
  • 收稿日期:2011-05-13 修回日期:2011-07-18 出版日期:2011-09-26 发布日期:2011-09-26

Non-isothermal crystallization kinetics of PA6 /reactable nano-SiO2 composites

Xiangmin XU Yuping GE Yudong ZHANG Zhijun ZHANG   

  • Received:2011-05-13 Revised:2011-07-18 Online:2011-09-26 Published:2011-09-26
  • Contact: Xiangmin XU

摘要: 通过双螺杆挤出机制备出聚酰胺(PA)6/可反应性纳米SiO2(RNS)复合材料,并采用Jeziorny法和Mo法对其非等温结晶行为进行了研究。结果表明,RNS具有较强的异相成核能力,能提高PA6的结晶速率,并使其晶体结构和生长机制发生改变。通过对比纯PA66及其复合材料的结晶活化能还发现,RNS能够降低PA66的结晶活化能。

关键词: 聚酰胺6, 可反应性纳米二氧化硅, 复合材料, 非等温结晶

Abstract: PA6/reactive nano-SiO2 composites were prepared in a twin-screw extruder by melt compounding. The non-isothermal crystallization of the composties and neat PA6 were studied through Jeziorny and Mo methods based on DSC analysis. It showed that reactive nano-SiO2 had a strong heterogeneous nucleation effect on PA6 matrix. Its addition increased the crystallization rate of PA6, and led to changes in crystal structure, growth mechanism, and activation energy of PA6.

Key words: polyamide 6, reactable nano-silca, composite, non-isothermal crystallization

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