Preparation of Graphite/LDPE Conductive Composites via Supercritical Carbon Dioxide Explosion

被引：0

作者：

Yu D. ^{[1
]}

Zhang R. ^{[1
]}

Liu Q. ^{[1
]}

Fu X. ^{[1
]}

Hu S. ^{[1
]}

机构：

[1] Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan

来源：

Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2020年 / 36卷 / 01期

关键词：

Conductive composite; Conductive percolation; Graphite; Low density polyethylene; Rheological percolation; Supercritical carbon dioxide;

D O I：

10.16865/j.cnki.1000-7555.2019.0352

中图分类号：

学科分类号：

摘要：

Conductive composites were prepared by melt blending method with low density polyethylene as matrix and natural graphite as filler. The composites were further treated by supercritical carbon dioxide explosion to obtain conductive materials after CO2 stripping and dispersing. The results show that the content of filler is 40%~45% when the conductive percolation occurs, the content of filler is 35% when the rheological percolation occurs. With supercritical carbon dioxide treatment, the filler content decreases to 25%~30% when the conductivity percolation occurs, the resistivity of the system decreases by 1~2 orders of magnitude, and the filler content of the rheological percolation phenomenon also decreases to 20%. Compared with the composites without supercritical carbon dioxide treatment, the tensile strength and elongation at break of the treated composites are increased. © 2020, Editorial Board of Polymer Materials Science & Engineering. All right reserved.

引用

页码：106 / 110

页数：4

共 8 条

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