Space charge distributions in two-layered LDPE/MgO nanocomposites exhibiting superior insulation performance

Etsu Kanegae*, Kazuyuki Ishimoto, Toshikatsu Tanaka, Yoshimichi Ohki, Yoitsu Sekiguchi, Yoshinao Murata, Chandupatla Chakradhar Reddy

*この研究の対応する著者

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Recently polymer nanocomposite has been attracting much attention as an emerging insulating material. In this paper, we measured space charge distributions for two-layered dielectric films consisting of certain combination of low-density polyethylene (LDPE) and its nanocomposite with magnesia nano-fillers during the application of dc electric field of 25 kV/mm or 100 kV/mm. Both at room temperature and 50 °C, space charge is formed at the interface of two different materials to maintain the continuity of current when the electric field is 25 kV/mm, while packet-like charge appears only in the LDPE when the electric field is 100 kV/mm. These phenomena are explained by assuming that the nano-fillers effectively suppress the increase in conductivity induced by the high electric field.

本文言語English
ページ(範囲)349-354+9
ジャーナルIEEJ Transactions on Fundamentals and Materials
130
4
DOI
出版ステータスPublished - 2010 1月 1

ASJC Scopus subject areas

  • 電子工学および電気工学

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