Nano Archive

Effect of silica concentration on electrical conductivity of epoxy resin-carbon black-silica nanocomposites

Zhang, Wei and Blackburn, Richard S. and Dehghani-Sanij, Abbas A. (2007) Effect of silica concentration on electrical conductivity of epoxy resin-carbon black-silica nanocomposites. SCRIPTA MATERIALIA, 56 (7). pp. 581-584.

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Official URL: http://dx.doi.org/10.1016/j.scriptamat.2006.12.039

Abstract

Electrical properties of nanocomposites are determined by the conductive paths of carbon black and influenced by a ``network'' of silica. With increasing content of silica, carbon black (CB) particles are optimally dispersed, contributing to the generation of a conductive network between CB particles via direct particle contact and a tunneling effect; maximum conductivity for the epoxy resin-CB-silica nanocomposite described herein occurs at a ratio of 0.6:1.0 (SiO2:CB). As a non-conductive component, excessive silica will prevent electron flow, giving rise to low conductivity. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Item Type:Article
Uncontrolled Keywords:polymer murix composites; nanocomposite; electrical conductivity of polymers; semiconductors; scanning electron microscopy (SEM)
Subjects:Material Science > Functional and hybrid materials
Physical Science > Nanoelectronics
ID Code:2508
Deposited By:Farnush Anwar
Deposited On:09 Jan 2009 15:05
Last Modified:09 Jan 2009 15:05

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