Estimation of talc contents in ethylene-propylene-diene copolymer by terahertz absorption spectroscopy

Tomoyuki Izutsu, Marina Komatsu, Yoshimichi Ohki, Maya Mizuno, Yoshiaki Nakamura, Naofumi Chiwata

研究成果: Article査読

8 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)81-85
ページ数5
ジャーナルIEEJ Transactions on Fundamentals and Materials
136
2
DOI
出版ステータスPublished - 2016

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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