中华医学超声杂志

应用化学 ›› 1990, Vol. 0 ›› Issue (2): 35-39.

• 研究论文 • 上一篇    下一篇

PP/EPO共混体系混容性与结晶结构

高焕, 莫志深, 张宏放, 薛小芙, 李涵   

  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
  • 收稿日期:1989-06-21 修回日期:1989-09-13 出版日期:1990-04-10 发布日期:1990-04-10
  • 基金资助:
    国家自然科学基金

CRYSTAL STRUCTURE AND MISCIBILITY OF PP/EPO BLENDS

Gao Huan, Mo Zhishen, Zhang Hongfang, Xue Xiaofu, Li Han   

  1. Laboratory of Polymer Physics, Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022
  • Received:1989-06-21 Revised:1989-09-13 Published:1990-04-10 Online:1990-04-10

PDF

534

被引次数

5

摘要： WAXD方法测定表明PP/EPO共混体系的结晶度随EPO组份含量的增加而降低,晶胞参数与组份比无关,并计算了第二类晶格畸变。根据PP/EPO的DSC和扭辫实验得出在所有组成下PP/EPO共混体系是不相容的。但在非晶区可能部分相容。

关键词: 聚丙烯, 乙烯-丙烯-辛烯共聚物相容性, 广角X射线衍射法示差扫描量热法

Abstract: The crystal structure and miscibility of PP/EPO biends have been investigated byWAXD, TBA and DSC. The degree of crystallinity of PP/EPO blends decreases with increa-sing content of EPO,and the unit cell parameters are independent of the blend composition.Hosemann's treatment was used to separate crystallite size and distortion broadening. TheX-ray diffraction profile was corrected by Cauchy and Gaussian functions. Observationsmade with TBA and DSC indicated that, though immiscibility of PP/EPO blends, thereis a partial interfacial miscibility between the two amorphous phases.

Key words: polypropylene, ethylene-propylene-octene copolymer, miscibility, WAXD, DSC

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