中国塑料

中国塑料 ›› 2012, Vol. 26 ›› Issue (08): 31-34 .DOI: 10.19491/j.issn.1001-9278.2012.08.005

• 材料与性能 • 上一篇    下一篇

玻璃纤维增强PA66复合材料非等温结晶动力学的研究

陈坤 郑梯和 周志诚 宋克东 曹喆   

  1. 株洲时代新材料科技股份有限公司
  • 收稿日期:2012-04-05 修回日期:1900-01-01 出版日期:2012-08-26 发布日期:2012-08-26

Study on Nonisothermal Crystallization Kinetics of Glass Fiber Reinforced PA66 Composites

Kun CHEN Tihe ZHENG Zhicheng ZHOU Kedong SONG Zhe CAO   

  • Received:2012-04-05 Revised:1900-01-01 Online:2012-08-26 Published:2012-08-26
  • Contact: Kun CHEN

摘要： 采用差示扫描量热仪对玻璃纤维（GF）增强聚酰胺66（PA66）复合材料进行了非等温结晶研究；用莫志深法和Kissinger法计算并得到了非等温结晶动力学参数。结果表明，GF对PA66基体具有异相成核作用，可提高其结晶速率；当GF含量为30 %（质量分数，下同）时，复合材料的结晶速率最大；在相同时间内,复合材料的结晶度越大,其所需的降温速率越大；PA66、PA66/15 %GF、PA66/30 %GF、PA66/45 %GF的结晶活化能分别为-297.22、-356.32、-481.00、-365.59 kJ/mol。

关键词: 玻璃纤维, 聚酰胺66, 复合材料, 非等温结晶动力学

Abstract: The crystallization behavior of glass fiber reinforced PA66 composites was characterized using DSC. Parameters of isothermal and nonisothermal crystallization kinetics were calculated using of Mo and Kissinger methods. It showed that glass fiber played as a heterogeneous nucleating agent, which increased the crystallization rate of PA66. When the glass fiber content was 30 %, the crystallization rate reached the maximum. The greater the cooling rate, the greater the degree of crystallinity. The crystallization activation energy of the composites were -297.22, -356.32, -481.00, and -365.59 kJ/mol, respectively, when the glass fiber contents were 0, 15 %, 30 %, and 45 %.

Key words: glass fiber, polyamide 66, composite, nonisothermal crystallization kinetics

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