高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (12): 2908.

• 研究论文 • 上一篇    下一篇

热塑性聚酰亚胺与聚醚醚酮共混物的等温结晶动力学

郭来辉1,方省众1,王贵宾2,吴忠文2   

  1. 1. 中国科学院宁波材料技术与工程研究所高分子事业部, 宁波 315201;
    2. 吉林大学化学学院, 麦克德尔米德实验室, 长春 130012
  • 收稿日期:2010-12-30 修回日期:2011-06-16 出版日期:2011-12-10 发布日期:2011-11-25
  • 通讯作者: 方省众 E-mail:fxzhong@nimte.ac.cn
  • 基金资助:

    宁波市国际科技合作项目(批准号: 2009D10017)和宁波市自然基金(批准号: 2009A610055)资助.

Isothermal Crystallization Kinetics of Thermoplastic Polyimide and Poly(ether ether ketone) Blends

GUO Lai-Hui1, FANG Xing-Zhong1*, WANG Gui-Bin2, WU Zhong-Wen2   

  1. 1. Polymer Department, Ningbo Institute of Material Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China;
    2. Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, China
  • Received:2010-12-30 Revised:2011-06-16 Online:2011-12-10 Published:2011-11-25
  • Contact: FANG Xing-Zhong E-mail:fxzhong@nimte.ac.cn
  • Supported by:

    宁波市国际科技合作项目(批准号: 2009D10017)和宁波市自然基金(批准号: 2009A610055)资助.

摘要: 采用熔融共混方法制备了热塑性聚酰亚胺(TPI)与聚醚醚酮(PEEK)的共混物; 用示差扫描量热分析(DSC)研究了共混物的等温结晶动力学. 分别采用Avrami方程和Hoffman-Lauritzen方程分析共混物的等温结晶动力学、端表面自由能(σe)和分子链折叠功(q). 结果表明, 加入TPI后PEEK的结晶速率降低, 结晶活化能、σe和q均增加. 但这些数值的变化与TPI含量不呈线性关系, 并从共混物的相容性和表面形貌给出了可能的解释.

关键词: 热塑性聚酰亚胺, 聚醚醚酮, 等温结晶, 结晶活化能, 表面自由能

Abstract: Thermoplastic polyimide(TPI) and poly(ether ether ketone)(PEEK) blends were prepared by melt blending and the isothermal crystallization kinetics of the blends was investigated by differential scanning calorimetry(DSC). Avrami equation and Hoffman-Lauritzen equation were used to analyse the isothermal crystallization kinetics, folding-surface free energy(σe) and the work of chain folding(q), respectively. The results showed that the rate of crystallization of PEEK decreased, while activation energy of crystallization, σe and q increased when TPI was added. But there was no linear relationships between the changes of these values and the content of TPI. A possible explanation was given by the investigation of the miscibility and surface morphology of the blends.

Key words: Thermoplastic polyimide, Poly(ether ether ketone), Isothermal crystallization, Activation energy of crystallization, Surface free energy

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