Characterization of Polymers for Fine Processing. II. Determination of Interfacial Tension between Polymer Melts.

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  • FUKUNAGA Kenji
    Polymer Design Division, Polymer Laboratory, Ube Industries, Ltd.
  • MAEDA Shuichi
    Polymer Design Division, Polymer Laboratory, Ube Industries, Ltd.
  • KAMEI Eiichi
    Polymer Design Division, Polymer Laboratory, Ube Industries, Ltd.

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Other Title
  • 高分子の微細・精密加工とキャラクタリゼーション　ＩＩ　溶融ポリマー間の界面張力測定法
  • ヨウユウ ポリマーカン ノ カイメン チョウリョク ソクテイホウ

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Abstract

An optimal estimation method for the interfacial tension between polymer melts was developed to avoid the capillary effect of Andreas' method. This new method was based on the linear regression analysis for the drop curvature and depth. The digital image analyzing technique was utilized for calculating the drop curvatures. The estimated interfacial tension was checked by comparing the numerically integrated Laplacian curve with the drop profile. The interfacial tension determined with this method was independent of both the drop volume and the inside diameter of the drop-forming capillary.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 53 (6), 352-357, 1996

    The Society of Polymer Science, Japan

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