Conductive graphite nanoplatelet/epoxy nanocomposites: Effects of exfoliation and UV/ozone treatment of graphite

被引：136

作者：

Li, J ^{[1
]}

Kim, JK ^{[1
]}

Sham, ML ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China

来源：

SCRIPTA MATERIALIA | 2005年 / 53卷 / 02期

关键词：

graphite; nanocomposite; electrical conductivity; UV/ozone treatment;

D O I：

10.1016/j.scriptamat.2005.03.034

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effects of ultrasonication and UV/ozone treatment of graphite on electrical conductivity of epoxy-based nanocomposites containing graphite nanoplatelets are investigated. Ultrasonication applied at various stages of composite fabrication enhanced the exfoliation and dispersion of graphite within the matrix. A porous multi-layer graphite structure resulted in a higher electrical conductivity and poorer mechanical properties than the completely exfoliated graphite. UV/ozone treatment improved both the electrical conductivity and mechanical properties by improving the graphite-epoxy interfacial adhesion, which is attributed to ameliorating changes in graphite surface chemistry and morphology. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：235 / 240

页数：6

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