Temperature dependence of the electrical conductivity of epoxy/expanded graphite nanosheet composites
АуториJović, Nataša G.
Antisari, M. Vittori
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The electrical conductivity of composites obtained by mixing epoxy resin and expanded graphite (EG) nanosheets has been investigated. Conductivity changes of up to I I orders of magnitude were observed as the filler load increased from 0 to 8 wt.%, while the percolation threshold was around 3 wt.%. It was also shown that epoxy/EG composites with intermediate filler contents exhibit a phase transition from predominantly contact conductivity to tunneling conductivity during heating from room temperature to 120 degrees C. (c) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Кључне речи:electrical resistivity/conductivity / scanning electron microscopy (SEM) / polymer matrix composites / nanocomposite / electrical properties
Извор:Scripta Materialia, 2008, 58, 10, 846-849
ISSN: 1359-6462 (print)