Estimation of Mutual Diffusion Coefficient as a Function of Moisture Content and Temperature from Coating Temperature History During Coating Drying

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  • 塗膜乾燥における塗膜温度変化データを利用した含水率・温度依存性を考慮した相互拡散係数の推定
  • トマク カンソウ ニ オケル トマク オンド ヘンカ データ オ リヨウ シタ ガンスイリツ ・ オンド イソンセイ オ コウリョ シタ ソウゴ カクサン ケイスウ ノ スイテイ

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Abstract

<p>Based on earlier studies and the authors’ original idea, the IH method was proposed as a means of estimating mutual diffusion coefficients as a function of moisture content and temperature. The diffusion coefficient was determined from the coating temperature history during coating drying experiments with constant-temperature hot air. A series of computer simulations was performed for an imaginary Fick-type coating of polyvinyl alcohol–water, and the coating temperature history during drying was obtained. The diffusion coefficients estimated by the IH method showed good agreement with the cited diffusion coefficients used in the drying simulations, suggesting the validity of the IH method.</p>

Journal

  • KAGAKU KOGAKU RONBUNSHU

    KAGAKU KOGAKU RONBUNSHU 44 (3), 153-160, 2018-05-20

    The Society of Chemical Engineers, Japan

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