高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (1): 152.

• 论文 • 上一篇    下一篇

LDPE/CPE/炭黑三相复合导电体系的亚微形态和导电性能

张雄伟, 黄锐   

  1. 成都科技大学塑料工程系, 成都 610065
  • 收稿日期:1994-08-03 出版日期:1995-01-24 发布日期:1995-01-24
  • 通讯作者: 张雄伟,男,26岁,硕士.
  • 作者简介:黄锐

The Morphology and Electrical Conductivity of LDPE/CPE/Carbon Black Electrical Conductive Composites

ZHANG Xiong-Wei, HUANG Rui   

  1. Department of Plastics Engineering, Chengdu University of Science and Technology, Chengdu, 610065
  • Received:1994-08-03 Online:1995-01-24 Published:1995-01-24

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被引次数

3

摘要： 对LDPE/CPE/炭黑三相复合导电体系的亚微形态和导电性能进行了研究。实验发现,该体系的亚微形态在共混比LDPE/CPE大于和小于50/50时为典型的"海岛"结构,在50/50时,为两相连续交错"互锁"结构;在共混比大于50/50时,LDPE/CPE/炭黑复合体系的导电性能较单一的LDPE树脂与炭黑复合体系的高2～5个数量级。

关键词: LDPE/CPE/炭黑复合导电体系, ", 海－岛", 结构, ", 互锁", 结构, 炭黑粒子的不均匀分布

Abstract: In this paper, the morphology and electrical conductivity of LDPE/CPE/carbon black composites were studied.It was shown that depending on the composition, the composites may show "sea-island"structure or dual-continuous phases interlocking structure.Above the blend ratio of LDPE/CPE= 50/50,the electrical conductivity of LDPE/CPE/carbon black composites is higher more than 2-5 orders of magnitude than that of LDPE/carbon black composites,which is mainly caused by the heterogeneous distribution of carbon black particles in the two incompatible polymer components,i.e. LDPE and CPE. This experimental result indicates that addition of an incompatible polymer to a polymer filled with carbon black can be a new method to increase the electrical conductivity of polymer composites.

Key words: LDPE/CPE/carbon black electrical conductive composites, "Sea-island"structure, "Interlock"structure, Heterogeneous distribution of carbon black particles

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