Estimation of Talc Contents in Ethylene-Propylene-Diene Copolymer by Terahertz Absorption Spectroscopy

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: 2016/02/01

タイトル(英語): Estimation of Talc Contents in Ethylene-Propylene-Diene Copolymer by Terahertz Absorption Spectroscopy

著者名: Tomoyuki Izutsu (Department of Electrical Engineering and Bioscience, Waseda University), Marina Komatsu (Department of Electrical Engineering and Bioscience, Waseda University), Yoshimichi Ohki (Department of Electrical Engineering and Bioscience, Waseda

著者名(英語): Tomoyuki Izutsu (Department of Electrical Engineering and Bioscience, Waseda University), Marina Komatsu (Department of Electrical Engineering and Bioscience, Waseda University), Yoshimichi Ohki (Department of Electrical Engineering and Bioscience, Waseda University/Research Institute for Materials Science and Technology, Waseda University), Maya Mizuno (Applied Electromagnetic Research Institute, National Institute of Information and Communications Technology), Yoshiaki Nakamura (Cable Materials Company, Hitachi Metals), Naofumi Chiwata (Cable Materials Company, Hitachi Metals)

キーワード: terahertz wave，terahertz time domain spectroscopy，far-infrared spectroscopy，ethylene-propylene-diene copolymer，talc

要約(英語): The authors examined the possibility of terahertz (THz) absorption spectroscopy whether it can be used as a tool to estimate the content of talc in ethylene-propylene-diene copolymer (EPDM), an important factor determining the electrical insulation properties of EPDM-insulated power cables. For this purpose, absorption spectra were measured in a frequency range from 0.3 to 10.0 THz for EPDM sheets containing different contents of talc, a disk-shaped sample made of talc powder, and a similar disk-shaped sample made of a mixture of talc and high-density polyethylene. As a result, the whole absorption in the frequency range from 0.3 to 10.0 THz is increased by the addition of talc into EPDM sheets. More specifically, it has become clear that talc in EPDM induces absorption peaks at 3.05, 4.8, 5.1, 5.3, 6.9, and 7.8 THz. The integrated absorption coefficients calculated for these absorption peaks show a good linearity with respect to the content of talc. Therefore, by watching the increments of these absorption peaks, the content of talc can be quantitatively estimated.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.136 No.2 （2016） 特集：2014 International Symposium on Electrical Insulating Materials

本誌掲載ページ: 81-85 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/136/2/136_81/_article/-char/ja/