高等学校化学学报

高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (2): 328.

• 研究简报 • 上一篇    

HDPE/LDPE共混物形变过程中的结构变化及机理

赵勇1, 杨德才1, A. S. Vaughan2   

  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. Reading大学Thomson物理实验室, 英国
  • 收稿日期:1996-09-08 出版日期:1998-02-24 发布日期:1998-02-24
  • 通讯作者: 杨德才
  • 作者简介:赵勇,男,30岁,助研.
  • 基金资助:

    国家科学技术委员会国家基础性研究重大关键项目资助课题.

Deformation Process and Mechanism of HDPE/LDPE Blends

ZHAO Yong1, YANG De-Cai1, A. S. Vaughan2   

  1. 1. Polymer Phys.Lab., Changchun Institute of Applied Chemistry, Academia Sinica, Changchun, 130022;
    2. J.J. Thomson Physical Laboratory, University of Reading, Reading, RG6 6AF, UK
  • Received:1996-09-08 Online:1998-02-24 Published:1998-02-24

PDF (PC)

被引次数

3

关键词: HDPE, LDPE, 共混物, 形态结构, 形变过程

Abstract: Blends of HDPEin more LDPE, with appropriate heat treatment,produce a dispersion of separate entities of HDPE in a matrix of LDPE.The system offered an especially favourable means of studying the deformation of melt-crystallized lamellae. It has been found that sheaf-like spherulites are transformed under tensile deformation into hourglass shapes i.e. a double cone aligned along the drawing direction with origin in the center of the object. This is a consequence of different modes of deformation according to the relation of an individual lamella to the tensile axis. The work shows that the lamellae have not undergone melting and recrystallization in the deformation process at room temperature.

Key words: HDPE, LDPE, Blend, Morphology, Deformation process

中图分类号: 

TrendMD: