Comparison of dielectric properties of low-density polyethylene/MgO composites with different size fillers

K. Ishimoto*, T. Tanaka, Y. Ohki, Y. Sekiguchi, Y. Murata, M. Gosyowaki

*この研究の対応する著者

研究成果: Conference contribution

21 被引用数 (Scopus)

抄録

Two kinds of low-density polyethylene (LDPE) composites were prepared by adding semi-spherical MgO fillers different in diameter, one being around several ten nra and the other being several um, and their dielectric properties were compared. At all the measurement temperatures, the conductivity is decreased and the permittivity is increased by the addition of fillers, irrespective of their sizes. However, the conductivity decrease is more significant and the permittivity increase is suppressed more in the case of the nm fillers. In addition, a drastic increase in dielectric loss factor at low frequencies is suppressed more significantly by the addition of the nm fillers. While the formation of packet-like charge observed in LDPE, which is assumed to appear at the front of the high-conductivity region that proceeds from one electrode toward the counter one, is suppressed significantly by both fillers, the effect is more significant in the nanocomposites. This means that the nanofillers suppress the increase in conductivity induced by the voltage application more effectively.

本文言語English
ホスト出版物のタイトル2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2008
ページ208-211
ページ数4
DOI
出版ステータスPublished - 2008 12 1
イベント2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2008 - Quebec City, QC, Canada
継続期間: 2008 10 262008 10 29

出版物シリーズ

名前Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
ISSN(印刷版)0084-9162

Conference

Conference2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2008
国/地域Canada
CityQuebec City, QC
Period08/10/2608/10/29

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

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