4-ロールミルを用いた界面活性剤水溶液の平面伸張粘度の評価  [in Japanese] Steady Planar Elongational Viscosity of CTAB/NaSal Aqueous Solutions Measured in a 4-Roll Mill Flow Cell  [in Japanese]

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Author(s)

    • 加藤 学 KATO Manabu
    • 長岡技術科学大学大学院機械系 Department of Mechanical Engineering, Nagaoka University of Technology Graduate School

Abstract

Rheological properties in steady planar elongational flow of CTAB/NaSal aqueous solutions were investigated using a 4-roll mill flow cell. The planar elongational stress was measured by using a flow-birefringence technique, which is based on the stress-optic rule. On the other hand, the rate of planar elongation was accurately determined by the analysis of the tracer particles in the system. The planar elongational viscosity showed elongational thinning as well as shear thinning. The planar elongational viscosity measured in the 4-roll mill flow cell was compared with that measured in a squeeze flow cell, and both well agreed with each other. Trouton ratio was evaluated to be 4 in both the Newtonian and elongational thinning region. Flow instability is observed in the 4-roll mill flow cell at a planar elongation rate lower than the shear rate at which the shear flow instability takes place.

Journal

  • Nihon Reoroji Gakkaishi

    Nihon Reoroji Gakkaishi 30(5), 283-287, 2002-12-15

    The Society of Rheology, Japan

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Codes

  • NII Article ID (NAID)
    10029814663
  • NII NACSIS-CAT ID (NCID)
    AN00198812
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    03871533
  • NDL Article ID
    6412588
  • NDL Source Classification
    ZM35(科学技術--物理学)
  • NDL Call No.
    Z14-725
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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