中华医学超声杂志

应用化学 ›› 1996, Vol. 0 ›› Issue (5): 25-28.

• 研究论文 • 上一篇    下一篇

热致液晶/PEEK/嵌段共聚物共混体系的结构与性能

马宇1, 王尚尔1, 杨宝泉1, 张宏放1, 莫志深1, 王军佐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开放实验室 长春 130022;
    2. 吉林大学化学系 长春
  • 收稿日期:1995-12-25 修回日期:1996-05-10 出版日期:1996-10-10 发布日期:1996-10-10
  • 基金资助:
    国家自然科学基金;吉林省科委基金

Structure, Properties of the Blend of Thermotropic Liquid Crystalline Polymer PEEK and Block Copolymer

Ma Yu1, Wang Shanger1, Yang Baoquan1, Zhang Hongfang1, Mo Zhishen1, Wang Junzuo2, Wu Zhongwen2   

  1. 1. Polymer Physics Laboratory, Changchun Institute of Applied Chemistory, Chinese Academy of Sciences, Changchun 130022;
    2. Department of Chemistry, Jilin University, Changchun
  • Received:1995-12-25 Revised:1996-05-10 Published:1996-10-10 Online:1996-10-10

PDF

368

被引次数

1

摘要： 用WAXD、SEM及力学性能测试等研究热致液晶/PEEK/嵌段共聚物三元共混体系形态、结构和性能。结果表明嵌段共聚物的加入,使体系具有一定的相容性和较好的界面粘接,共混物的强度、模量有一定的提高,对共混物的结晶行为具有明显的影响,当热致液晶含量高时,基材与液晶两相间出现明显的分离现象,即“皮-芯”结构。

关键词: 三元共混物, 相容性, 形态, 结构－性能

Abstract: The morphology, structure and properties of ternary blends VECTRA, PEEK,TOBC-PEEK were investigated using WAXD, SEM and mechanical test. With interfacial adhersion, the liquid crystalline polymer(LCP) could form microfiber in certain extent and disperse into the matrix of PEEK. The strength and modulus increased and reached the maximum in the blend containing 20% VECTRA. The crystallization behavior of the blend was obviously affected by the addition of block copolymer. SEM photographs showed that the high content of LCP possessed "core-shell" structure.

Key words: ternary blend, miscibility, morphology, structure and property

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