Effects of mica nanofillers on the complex permittivity of polyamide nanocomposites

N. Fuse, H. Sato, T. Tanaka, Y. Ohki

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

5 Citations (Scopus)

Abstract

Effects of nanofiller loading on the carrier transport and molecular motion in polyamide-6/mica nanocomposites were discussed by analyzing their complex permittivity spectra. As a result, the following four dielectric polarization processes were observed; space charge polarization, a relaxation due to dipolar orientation, and ß relaxation due to rotation of amide groups bonded with water molecules, in addition to interfacial polarization at crystalline/ amorphous boundaries. The enhancement of dielectric constant and that of loss factor due to abundance of mobile charge carriers are suppressed by the nanofiller loading. These results suggest that carrier transport is suppressed by the nanofillers. Furthermore, it was found that relaxation time becomes longer by the mica nanofiller loading both for the dipolar orientation and for the rotation of amide groups. Molecular motion is considered to be restricted in nano-composites, which indicates a strong interaction between the resin and filler.

Original languageEnglish
Title of host publication2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2008
Pages540-543
Number of pages4
DOIs
Publication statusPublished - 2008 Dec 1
Event2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2008 - Quebec City, QC, Canada
Duration: 2008 Oct 262008 Oct 29

Publication series

NameAnnual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
ISSN (Print)0084-9162

Conference

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

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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    Fuse, N., Sato, H., Tanaka, T., & Ohki, Y. (2008). Effects of mica nanofillers on the complex permittivity of polyamide nanocomposites. In 2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2008 (pp. 540-543). [4772784] (Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP). https://doi.org/10.1109/CEIDP.2008.4772784