高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (7): 1142.

• 论文 • 上一篇    下一篇

热处理对聚醚醚酮晶体结构参数及结晶度的影响

刘天西1, 张宏放1, 韩平1, 莫志深1, 那辉2, 曹俊奎2, 吴忠文2   

  1. 1. 中国科学院长春应用化学研究所高分子物理联合开放研究实验室, 长春 130022;
    2. 吉林大学化学系
  • 收稿日期:1995-07-11 出版日期:1996-07-24 发布日期:1996-07-24
  • 通讯作者: 莫志深
  • 作者简介:刘天西,男,25岁,博士研究生.
  • 基金资助:

    国家科委国家基础性研究重大关键项目;国家自然科学基金

Effect of Heat Treatment on the Parameters of Crystal Structure and Degree of Crystallinity of Poly (aryl-ether-cther-ketone)

LIU Tian-Xi1, ZHANG Hong-Fang1, HAN Ping1, MO Zhi-Shen1, NA Hui2, CAO Jun-Kui2, WU Zhong-Wen2   

  1. 1. Polymer Physics Laboratory, Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022;
    2. Department of Chemistry, Jiling University, Changchun 130023
  • Received:1995-07-11 Online:1996-07-24 Published:1996-07-24

摘要: 采用广角X射线衍射(WAXD)方法研究了不同热处理温度下聚醚醚酮(PEEK)的晶胞参数、微晶尺寸及结晶度的变化。根据X射线散射强度理论,运用图解多重峰方法导出了以WAXD方法计算PEEK结晶度的公式;用此公式对经不同热处理的PEEK样品进行计算,结果与由密度法及量热法测定的结果具有较好的可比性。

关键词: 聚醚醚酮, 广角X射线衍射, 晶胞参数, 微晶尺寸, 结晶度

Abstract: The variations of unit cell parameters and crystallite size of nine PEEKsamples treated at various temperatures have been studied by using Wide-Angle X-ray Diffraction(WAXD)The resu lts indicate a decrease in unit cell parameter a,b and c but an increase in crystallite size Lhkl with the increase heat treatment temperature.Based on X-ray scattering intensity theory and using the graphic multipeak resolution method,the formula of degree of crystallinity (Wc,X) for PEEK is derived.The results calculated are compatible with the density measurement and calorimetry.

Key words: PEEK, WAXD, Parameter of crystal structure, Crystallite size, Degree of crystallinity

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