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Title: Re-examination of the dielectric spectra of epoxy resins: Bulk charge transport and interfacial polarization peaks
Authors: Chalashkanov, N. M.
Dodd, Stephen John
Dissado, L. A.
Fothergill, J. C.
First Published: Jun-2014
Publisher: Institute of Electrical and Electronics Engineers (IEEE), United States
Citation: IEEE Transactions on Dielectrics and Electrical Insulation, 2014, 21 (3), pp. 1330-1341
Abstract: The dielectric properties of two amine cured bisphenol-A epoxy resin systems, Araldite CY1301 and Araldite CY1311 have been characterized using dielectric spectroscopy over the frequency range 1 mHz to 100 kHz. These two epoxy resin systems were chosen to allow the dielectric response to be studied from above and below the glass transition, as Araldite CY1311 is a modified version (with added plasticizer) of Araldite CY1301. The dielectric response was found to comprise both bulk and interfacial features. Above the glass transition temperature, two processes were identified, a low frequency process usually ascribed to interfacial polarization is shown to be a bulk process termed Quasi-DC (QDC) conduction and a dielectric dispersion usually taken to be a bulk process has been shown to be an interfacial effect.
DOI Link: 10.1109/TDEI.2014.6832281
ISSN: 1070-9878
Version: Post-print
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © 2014, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Appears in Collections:Published Articles, Dept. of Engineering

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