Re-examination of the Dielectric Spectra of Epoxy Resins: Bulk Charge Transport and Interfacial Polarization Peaks

被引：27

作者：

Chalashkanov, N. M. ^{[1
]}

Dodd, S. J. ^{[1
]}

Dissado, L. A. ^{[1
]}

Fothergill, J. C. ^{[2
]}

机构：

[1] Univ Leicester, Leicester LE1 7RH, Leics, England

[2] City Univ London, London EC1V 0HB, England

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2014年 / 21卷 / 03期

关键词：

Epoxy resins; Dielectric measurements; Dielectric polarization; Charge transport; Equivalent circuits; Interface; CONSTANT-PHASE-ANGLE; WATER-ABSORPTION; FRACTAL MODEL; AC RESPONSE; RELAXATION; BEHAVIOR; LAW;

D O I：

10.1109/TDEI.2014.6832281

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：1330 / 1341

页数：12

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