Comparison between far-IR and IR absorption spectroscopy for estimating vinyl acetate content in ethylene-vinyl acetate copolymer

Daisuke Odaka, Tomoyuki Izutsu, Marina Komatsu, Yoshimichi Ohki, Maya Mizuno

    研究成果: Article査読

    2 被引用数 (Scopus)

    抄録

    Far-IR absorption spectra at frequencies from 0.5 to 21.0 THz were obtained for sheets of ethylene-vinyl acetate copolymer (EVA) containing different contents of vinyl acetate (VA) from 12 to 60% with different thicknesses from 1.0 to 3.0 mm. As a result, EVA exhibits absorption at 2.5, 6.7, 10.5, 11-17, and 17-20 THz. Especially, the 2.5-THz intensity with a good proportionality up to 60% of VA content exhibits comparable accuracy to the IR method and is applicable for estimating the VA content in EVA sheets 2.0 or 3.0 mm thick, for which IR method is difficult to be applied.

    本文言語English
    ページ(範囲)171-177
    ページ数7
    ジャーナルIEEJ Transactions on Fundamentals and Materials
    137
    3
    DOI
    出版ステータスPublished - 2017

    ASJC Scopus subject areas

    • 電子工学および電気工学

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