Rheological Analysis of Fine Particles Suspension and its Application

DOI
  • NASU AKIO
    Material Science Reserach Center, SHISEIDO CO., LTD
  • OTSUBO YASUFUMI
    Department of Architecture and Urban Science Graduate School of Engineering, Chiba University

Bibliographic Information

Other Title
  • 微粒子粉体分散系のレオロジー特性解析とその応用

Description

Fine particles of titanium dioxides and zinc oxides are very attractive as inorganic UV-protecting ingredients in cosmetic products. Dispersion characteristics of fine particles suspension in silicone oil using polyoxiethylene-modified silicone as dispersants were analyzed according to the structure of dispersants and the state of preservation of suspensions. Shear rate dependence of viscosity and frequency dependence of storage modulus were principally measured as representative values of flocculation level of suspension. The UV-scattering behavior of single titanium dioxide suspensions and complex ones was studied in relation to rheological properties. As a result, the rheological properties correlated with the UV-protecting ability and it was possible that fine particles suspensions maximized the UV-protecting ability were quantitatively-established.

Journal

Keywords

Details 詳細情報について

  • CRID
    1390282680569172608
  • NII Article ID
    130004604137
  • DOI
    10.11345/japannctam.57.0.69.0
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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