Space Charge Distributions in Two-layered LDPE/MgO Nanocomposites Exhibiting Superior Insulation Performance

• Kanegae Etsu

  Major in Electrical Engineering and Bioscience, Waseda University

• Ishimoto Kazuyuki

  Major in Electrical Engineering and Bioscience, Waseda University

• Tanaka Toshikatsu

  Graduate School of Information, Production, and Systems, Waseda University

• Ohki Yoshimichi

  Major in Electrical Engineering and Bioscience, Waseda University

• Sekiguchi Yoitsu

  J-Power Systems Corporation

• Murata Yoshinao

  J-Power Systems Corporation

• Reddy Chandupatla Chakradhar

  J-Power Systems Corporation

Bibliographic Information

Other Title

• ２層誘電体構成の空間電荷分布が示すＬＤＰＥ／ＭｇＯナノコンポジットの良好な絶縁性
• 2ソウ ユウデンタイ コウセイ ノ クウカン デンカ ブンプ ガ シメス LDPE MgO ナノコンポジット ノ リョウコウ ナ ゼツエンセイ

Abstract

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.

Journal

• IEEJ Transactions on Fundamentals and Materials

  IEEJ Transactions on Fundamentals and Materials 130 (4), 349-354, 2010

  The Institute of Electrical Engineers of Japan

Keywords

• insulating materials
• polymer nanocomposite
• low-density polyethylene
• two-layered dielectrics
• conduction current
• space charge

Details

• CRID: 1390001204598257792
• NII Article ID: 10026225650
• NII Book ID: AN10136312
• DOI: 10.1541/ieejfms.130.349
• ISSN: 13475533
• ISSN: 03854205
• NDL BIB ID: 10647806
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10647806
• Web Site: http://www.jstage.jst.go.jp/article/ieejfms/130/4/130_4_349/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed