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Re-examination of the dielectric spectra of epoxy resins: Bulk charge transport and interfacial polarization peaks

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posted on 2016-04-04, 11:34 authored by N. M. Chalashkanov, Stephen John Dodd, L. A. Dissado, J. C. Fothergill
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.

History

Citation

IEEE Transactions on Dielectrics and Electrical Insulation, 2014, 21 (3), pp. 1330-1341

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Engineering

Version

  • AM (Accepted Manuscript)

Published in

IEEE Transactions on Dielectrics and Electrical Insulation

Publisher

Institute of Electrical and Electronics Engineers (IEEE), United States

issn

1070-9878

Acceptance date

2014-02-14

Copyright date

2014

Available date

2016-04-04

Publisher version

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6832281

Language

en

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