Effects of nanofiller loading on the molecular motion and carrier transport in polyamide

Norikazu Fuse*, Hiroki Sato, Yoshimichi Ohki, Toshikatsu Tanaka

*この研究の対応する著者

研究成果: Article査読

55 被引用数 (Scopus)

抄録

Effects of nanofiller loading on the molecular motion and carrier transport 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, interfacial polarization at crystalline/ amorphous boundaries, α relaxation due to dipolar orientation, and β relaxation due to rotation of amide groups bonded with water molecules. The enhancement of dielectric constant and that of loss factor due to abundance of mobile charge carriers are suppressed by the nanofiller loading. Furthermore, it was found that the relaxation time becomes longer by the mica nanofiller loading both for the dipolar orientation and for the rotation of amide groups. These results suggest that molecular motion that assists carrier transport is suppressed in nanocomposites, which indicates a strong interaction between the resin and filler.

本文言語English
論文番号4815188
ページ(範囲)524-530
ページ数7
ジャーナルIEEE Transactions on Dielectrics and Electrical Insulation
16
2
DOI
出版ステータスPublished - 2009 4月

ASJC Scopus subject areas

  • 電子工学および電気工学

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