量子化学計算による低密度ポリエチレンの直流熱破壊前駆の導電率増大の検討

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2014/04/01

タイトル(英語): Quantum Chemical Calculation Studies on Electrical Conductivity Increasing in DC Thermal Pre-Breakdown Process for Low Density Polyethylene

著者名: 高田　達雄（東京都市大学），森　拓哉（東京都市大学），加藤　剛（東京都市大学），三宅　弘晃（東京都市大学），田中　康寛（東京都市大学）

著者名(英語): Tatsuo Takada (Measurement and Electric Machine Control Labs.), Takuya Mori (Measurement and Electric Machine Control Labs.), Tsuyoshi Kato (Measurement and Electric Machine Control Labs.), Hiroaki Miyake (Measurement and Electric Machine Control Labs.), Yasuhiro Tanaka (Measurement and Electric Machine Control Labs.)

キーワード: 量子化学計算，衝撃熱破壊，架橋剤分解残渣，導電率　　quantum chemical calculation，impulse thermal breakdown，cross linking byproducts，electrical conductivity

要約(英語): The LDPE impregnated with acetophenone (AP), one of cross linking byproducts, under a high electrical stress of E=150kV/mm caused a breakdown by the consumption electric power density of κE2=2.5W/cm2, which was measured by using the advanced technique combined with the space charge measurement (PEA system) and the terminal current measurement. The consumption electric power (κE2) leads to a thermal breakdown of LDPE specimen, where κ is an electric conductivity. The conductivity of LDPE with AP is much increased because the injection barrier of electron carrier from cathode decrease 4.25eV to 2.60eV and the injection barrier of hole carrier from anode also decrease 3.37eV to 2.54eV. These injection barrier height were calculated by Gaussian 09 software of Quantum Chemical Calculation. It is proposed the thermal breakdown mechanism that the conductivity (κ) of LDPE with AP increases, the consumption electric power (κE2) also increases, the temperature of filamentary conductivity path increases to a melting temperature, and then the breakdown is occurred.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.134 No.4 （2014） 特集：平成25年基礎・材料・共通部門大会

本誌掲載ページ: 258-265 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/134/4/134_258/_article/-char/ja/