オレフィン系熱硬化性ポリジシクロペンタジエンとエポキシ樹脂の誘電特性の比較

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  • 増崎 裕季
    早稲田大学大学院 先進理工学研究科 電気・情報生命専攻
  • 大木 義路
    早稲田大学大学院 先進理工学研究科 電気・情報生命専攻 早稲田大学材料技術研究所
  • 田 付強
    北京交通大学電気工学科
  • 小迫 雅裕
    九州工業大学大学院 工学研究院 電気電子工学研究系
  • 亀井 伸人
    RIMTEC（株）

書誌事項

タイトル別名
  • Comparison of Dielectric Properties of Olefin Thermosetting Polydicyclopentadiene and Epoxy Resin
  • オレフィンケイ ネツ コウカセイ ポリジシクロペンタジエン ト エポキシ ジュシ ノ ユウデン トクセイ ノ ヒカク

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説明

Complex permittivity spectra were obtained in a wide temperature and frequency range from 20 to 200°C and from 10-2 to 105 Hz for polydicyclopentadiene resin (PDCPD). For comparison, two epoxy resins, one with a similar glass transition temperature (Tg) to PDCPD and the other with a lower Tg, were used. As a result, PDCPD shows much smaller values of εr' and εr'' than the two epoxy resins in nearly the whole temperature and frequency range. The differences of εr' and εr'' between PDCPD and the epoxy resin with a similar Tg are also significant at low frequencies and at high temperatures. The increase in εr' is attributable to the accumulation of hetero space charges in front of the electrodes. On the other hand, the increase in εr'' is an indication of the increase in Joule heat caused by the enhanced charge transport. Therefore, the experiental results indicate that PDCPD possesses better electrical insulating properties than epoxy resin. Furthermore, analysis using complex electric modulus, which is the inverse of the complex permittivity, has revealed very clearly that both charge transport and dipolar orientation are much more difficult in PDCPD than the two epoxy resins.

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