Analysis on thermally stimulated currents in polyethylene-terephthalate and polyethylene-naphthalate

Peng Yang, Yoshimichi Ohki, Fuqiang Tian

研究成果: Conference contribution

5 被引用数 (Scopus)

抄録

Through analysis of thermally stimulated polarization and depolarization currents (TSPC and TSDC), dielectric properties of polyethylene terephthalate (PET) and polyethylene naphthalate (PEN) are compared. Since the two polymers have very similar chemical structures, their dielectric properties are also similar. However, the temperature at which TSPC or TSDC starts to increase rapidly is about 20 °C higher in PEN than in PET. This difference is mostly due to the fact that the glass transition temperature Tg is higher in PEN. This means that thermal properties including the glass transition affect significantly the dielectric behavior of PET and PEN. At temperatures about 30 °C lower than Tg, the two polymers show a hump in their first-run TSPC spectra, probably originating from impurity or moisture. It is also clearly demonstrated that both PET and PEN can be reliable electrical insulating materials, especially at temperatures below their Tg's.

本文言語English
ホスト出版物のタイトルProceedings of 2014 International Symposium on Electrical Insulating Materials, ISEIM 2014
出版社Institute of Electrical Engineers of Japan
ページ401-404
ページ数4
ISBN(印刷版)9784886860866
DOI
出版ステータスPublished - 2014 1月 1
イベント2014 International Symposium on Electrical Insulating Materials, ISEIM 2014 - Niigata, Japan
継続期間: 2014 6月 12014 6月 5

出版物シリーズ

名前Proceedings of the International Symposium on Electrical Insulating Materials

Other

Other2014 International Symposium on Electrical Insulating Materials, ISEIM 2014
国/地域Japan
CityNiigata
Period14/6/114/6/5

ASJC Scopus subject areas

  • 電子工学および電気工学
  • 電子材料、光学材料、および磁性材料

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