Fiber orientation and flow properties of pulp fiber suspensions under shear flow conditions

Bo Chen, Daisuke Tatsumi, Takayoshi Matsumoto

研究成果: Contribution to journalArticle査読

14 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)471-478
ページ数8
ジャーナルJournal of Fiber Science and Technology
59
12
DOI
出版ステータス出版済み - 2003
外部発表はい

All Science Journal Classification (ASJC) codes

  • 化学工学(その他)
  • 材料科学(その他)
  • ポリマーおよびプラスチック
  • 産業および生産工学

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