Manufacture and characterization of conductor-insulator composites based on carbon nanotubes and thermally reduced graphene oxide

Chris R. Bowen, Sam Buschhorn, Vana Adamaki

Research output: Contribution to journalArticle

12 Citations (Scopus)
166 Downloads (Pure)

Abstract

In this paper we present characterization data for carbon nanotube (CNT)-epoxy and thermally reduced graphene oxide (TRGO)-epoxy nano-composites. The frequency-dependent ac conductivity and permittivity are examined as a function of volume fraction of carbon-based filler. The measured electrical properties and their frequency dependency are evaluated on the basis that such composites can be considered as a network of resistors and capacitors, whereby the resistors represent the conductive component (CNT or TRGO) and the capacitors are the insulating component (epoxy matrix). Differences observed between the frequency-dependent electrical properties of the CNT-epoxy and TRGO-epoxy composites are explained in terms of the different electrical conductivities of the CNT and TRGO phase.
Original languageEnglish
Pages (from-to)765-774
Number of pages10
JournalPure and Applied Chemistry
Volume86
Issue number5
DOIs
Publication statusPublished - 1 May 2014

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