Fiber Orientation and Flow Properties of Pulp Fiber Suspensions under Shear Flow Conditions

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The rheological properties of mixed pulp fiber suspensions were measured with a parallel-plates type rheometer. The effects of shear rate and mixture ratios of softwood and hardwood kraft pulp fibers on flocculation of the fibers were evaluated using a high speed CCD camera. The flow curves of the suspensions showed individual three zones derived from different flocculation conditions of the systems. The effect of the long fibers on the flocculation is more remarkable than the short ones. The two-dimensional fast Fourier transform technique was used to analyze the fiber orientation in polar coordinate. The fiber orientation in flow direction is rather irregular, even under high shear rate conditions. The present method is useful for evaluating the flow behavior of the fiber suspensions and the fiber orientation.

収録刊行物

  • 繊維学会誌

    繊維学会誌 59(12), 471-478, 2003-12-10

    The Society of Fiber Science and Technology, Japan

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各種コード

  • NII論文ID(NAID)
    10012540720
  • NII書誌ID(NCID)
    AN00131651
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00379875
  • NDL 記事登録ID
    6785136
  • NDL 雑誌分類
    ZP33(科学技術--繊維工学・工業)
  • NDL 請求記号
    Z17-189
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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