Dielectric properties of low-density polyethylene/MgO nanocomposites

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

Polymer nanocomposite has been attracting much attention as a new insulating material, since homogeneous dispersion of only few nm-sized inorganic fillers can improve various properties significantly. In the present article, we report measurement results of permittivity, conduction current, and space charge distribution profiles observed in low-density polyethylene/MgO nanocomposites with various filler contents. The permittivity shows the lowest value at 1-phr addition of fillers and then increases monotonically with an increase in the filler content. The volume resistivity measured under a dc electric field becomes highest at 5 phr in the temperature range between 278 and 363 K. There is a possibility that molecular motions, which help electronic or ionic charge carriers escape from traps by hopping, are restricted by the addition of a proper quantity of nano-fillers. In all the samples, homocharge is found to be formed before the anode.

Original languageEnglish
Title of host publicationProceedings of ICPADM 2006 - 8th International Conference on Properties and Applications of Dielectric Materials
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages323-326
Number of pages4
ISBN (Print)1424401895, 9781424401895
DOIs
Publication statusPublished - 2006
EventICPADM 2006 - 8th International Conference on Properties and Applications of Dielectric Materials - Bali, Indonesia
Duration: 2006 Jun 262006 Jun 30

Publication series

NameProceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials

Conference

ConferenceICPADM 2006 - 8th International Conference on Properties and Applications of Dielectric Materials
Country/TerritoryIndonesia
CityBali
Period06/6/2606/6/30

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Materials Chemistry

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