Filler-content dependence of dielectric properties of low-density polyethylene/MgO nanocomposites

Toshiaki Kikuma*, Norikazu Fuse, Toshikatsu Tanaka, Yoshinao Murata, Yoshimichi Ohki

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)


This paper reports measurement results of instrumental analyses, permittivity, conduction current, and space charge distribution profiles observed in low-density polyethylene/MgO nanocomposites with various filler contents, done with the intention to clarify the filler-content dependence of dielectric properties. The permittivity shows the lowest value in the sample with 1-phr fillers and then increases monotonically with an increase in filler content. The conductivity measured under dc electric field lowers by the filler addition up to 5 phr at temperatures from 5 to 90 °C. In all the samples, positive homocharge is formed in the vicinity of the anode, and its amount is largest at 1 phr. The most adequate filler content for the electrical insulation purpose is around 1 to 5 phr.

Original languageEnglish
Pages (from-to)1072-1077
Number of pages6
JournalIEEJ Transactions on Fundamentals and Materials
Issue number11
Publication statusPublished - 2006


  • Conduction current
  • Nanocomposite
  • Permittivity
  • Polyethylene
  • Space charge

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


Dive into the research topics of 'Filler-content dependence of dielectric properties of low-density polyethylene/MgO nanocomposites'. Together they form a unique fingerprint.

Cite this