高等学校化学学报

高等学校化学学报 ›› 2013, Vol. 34 ›› Issue (5): 1258.doi: 10.7503/cjcu20121060

• 高分子化学 • 上一篇    下一篇

快压法制备非晶聚醚醚酮的应变诱导结晶行为

张阳1, 卓然然2, 邵春光1, 李倩1, 张瑞静1, 刘成刚1, 王明友3, 张豆豆3, 王松杰1, 曹伟1, 申长雨1   

  1. 1. 国家橡塑模具工程研究中心, 郑州大学力学与工程科学学院, 郑州 450002;
    2. 郑州大学物理工程学院, 郑州 450001;
    3. 西南交通大学高温高压试验室, 成都 610031
  • 收稿日期:2012-11-22 出版日期:2013-05-10 发布日期:2013-05-10
  • 通讯作者: 邵春光, 男, 博士, 讲师, 主要从事高分子材料加工过程中物理研究. E-mail: shaochunguang2008@yahoo.com.cn E-mail:shaochunguang2008@yahoo.com.cn
  • 基金资助:

    国家自然科学基金(批准号: 51103138, 11272291)和国家重点基础研究发展计划(批准号: 2012CB626809)资助.

Strain-induced Crystallization Behavior of Amorphous PEEK Prepared by Rapid Compression

ZHANG Yang1, ZHUO Ran-Ran2, SHAO Chun-Guang1, LI Qian1, ZHANG Rui-Jing1, LIU Cheng-Gang1, WANG Ming-You3, ZHANG Dou-Dou3, WANG Song-Jie1, CAO Wei1, SHEN Chang-Yu1   

  1. 1. National Engineering Research Center for Advanced Polymer Processing Technology, School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou 450002, China;
    2. Physical Engineering College, Zhengzhou University, Zhengzhou 450001, China;
    3. Laboratory of High Pressure Physics, Southwest Jiaotong University, Chengdu 610031, China
  • Received:2012-11-22 Online:2013-05-10 Published:2013-05-10

PDF (PC)

被引次数

4

摘要：

利用快速增压和淬火2种方法分别制备了非晶聚醚醚酮(PEEK), 并利用二维广角X射线衍射(WAXD)研究了2种非晶样品在不同拉伸温度(Td)和不同应变速率(v)条件下的结晶行为. 结果表明, 在相同拉伸温度及应变速率条件下, 快压样品的临界结晶应变明显低于淬火样品; 随着拉伸温度和应变速率的升高, 2种样品的临界结晶应变均逐渐降低; 在相同应变条件下, 拉伸温度对PEEK材料结晶度的影响很大, 而应变速率对其影响较小.

关键词: 快速增压, 非晶聚醚醚酮, 拉伸, 临界结晶应变, 结晶度

Abstract:

The crystallization behavior of poly(ether-ether-ketone)(PEEK) prepared by rapid compression(RC) and quenched cold(QC) drawn at different drawing temperatures(Td) and drawing speeds(v) were studied by wide angl X-ray diffraction(WAXD). The results show that the critical crystallization strains of RC samples are lower than that of QC samples under the same drawing conditions and reduced with drawing temperature and speed increasing. The crystallinity of samples drawn under the same temperature changed unconspicuously with the drawing speed increasing. Moreover, as drawing temperature increased, the crystallinity is improved obviously. The results show that crystallinity depends on drawing temperature mainly.

Key words: Rapid compression, Amorphous poly(ether-ether-ketone), Drawing, Critical crystal strain, Crystallinity

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