高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (11): 1864.

• 研究简报 • 上一篇    下一篇

第三相界面对高分子共混物粗化过程的影响研究

谢续明, 肖天晶, 杨勇   

  1. 清华大学国家教育委员会先进材料开放实验室, 化工系, 高分子研究所, 北京, 100084
  • 收稿日期:1997-09-02 出版日期:1998-11-24 发布日期:1998-11-24
  • 通讯作者: 谢续明,男,35岁,博士,副教授.
  • 作者简介:谢续明,男,35岁,博士,副教授.
  • 基金资助:

    国家自然科学基金(批准号:29604004)、石油化工总公司基础性研究基金和国家教育委员会优秀年轻教师基金资助课题.

Studies on the Effects of the Third Phase on the Coarsening of Incompatible Polymer Blends

XIE Xu-Ming, XIAO Tian-Jing, YANG Yong   

  1. Advanced Material Key Laboratory of National Education Commission, Department of Chemical Engineering, Institute of Polymer Science and Engineering, Tsinghua University, Beijing, 100084
  • Received:1997-09-02 Online:1998-11-24 Published:1998-11-24

关键词: 聚丙烯, 乙烯-醋酸乙烯酯, 粗化, 第三相界面, 浸润作用

Abstract: In this study, phase contrast microscope and computer image analyzer were used to study the coarsening process of the dispersed phase of the polymer blend (PP/EVAc) under 2 dimensional and 3 dimensional conditions. The results showed that under 3-dimensional condition, the growth of the dispersed phase follows r3~t1.01, corresponding to the evaporation condensation theory of LifshitzSlyozov——r3~t, while under 2-dimensional condition the growth law is r3~t1.32. The growth speed of the dispersed droplets under 2-dimensional condition is faster than that under 3-dimensional condition. This difference is caused by the wetting effects between the third phase and polymer blend.

Key words: Polypropylene, Ethylene-vinyl acetate copolymer, Coarsening, The third phase interface, Wetting effect

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