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: 2011/12/01タイトル(英語): Simultaneous Measurements of Space Charge and External Current for LDPE Films with Various Densities著者名: Amir Izzani Mohamed (Graduate School of Science and Engineering, Ehime University/Faculty of Electrical and Electronic Engineering, University Malaysia Pahang), Michiyasu Morimoto (Graduate School of Science and Engineering, Ehime University), Takashi Akagi (Graduate School of Science and Engineering, Ehime University), Kazunori Kadowaki (Graduate School of Science and Engineering, Ehime University), Isamu Kitani (Graduate School of Science and Engineering, Ehime University)著者名(英語): Amir Izzani Mohamed (Graduate School of Science and Engineering, Ehime University/Faculty of Electrical and Electronic Engineering, University Malaysia Pahang), Michiyasu Morimoto (Graduate School of Science and Engineering, Ehime University), Takashi Akagi (Graduate School of Science and Engineering, Ehime University), Kazunori Kadowaki (Graduate School of Science and Engineering, Ehime University), Isamu Kitani (Graduate School of Science and Engineering, Ehime University)キーワード: LDPE，external current，space charge，simultaneous measurements，paraffin，polyisobutylene要約(英語): Positive charges packet is frozen inside the bulk of a low-density polyethylene(LDPE) film after subjecting to 1.5MV/cm of DC electric field. In this paper, simultaneous measurements of space charge dynamics and external current through LDPE are carried out by using a pulsed electroacoustic (PEA) method in order to understand this phenomenon. By carrying these measurements simultaneously, we can understand further about the physical process during the freezing period. External current shows an increase as the electric field is up to 5MV/cm though the velocity of the charges decreases. This implies that, beside the charges packet, there are also moving charges in the freezing region. 3 type of samples, LDPE neat sample, LDPE with paraffin sample and LDPE with polyisobutylene sample are prepared. In comparison with LDPE neat sample, the LDPE with paraffin sample tends to suppress the positive charges penetration hence showing a lower current flow. On the other hand, LDPE with polyisobutylene sample shows a relatively fast positive charges packet penetration and a higher current flow.本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.131 No.12 （2011） 特集：国際宇宙ステーションからの宇宙地球環境計測技術とその科学本誌掲載ページ: 1031-1036 p原稿種別: 論文／英語電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/131/12/131_12_1031/_article/-char/ja/
