超音波分散した酸化チタンナノ粒子スラリーの安定性 Stability of Ultrasonicated TiO_2 Nanoparticles Slurry

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著者

    • 佐藤 仁俊 SATO Kimitoshi
    • (独)物質・材料研究機構ナノセラミックスセンター National Institute for Materials Science, Nano Ceramics Center
    • 李 継光 LI Ji-Guang
    • (独)物質・材料研究機構ナノセラミックスセンター National Institute for Materials Science, Nano Ceramics Center
    • 石垣 隆正 ISHIGAKI Takamasa
    • (独)物質・材料研究機構ナノセラミックスセンター National Institute for Materials Science, Nano Ceramics Center

抄録

Dispersion behavior of aqueous suspensions of TiO<SUB>2</SUB> nanoparticles were investigated by putting polyacrylic acids, PAA, with various molecular weights ranging from 1200 to 30000. Suspensions with solid fraction of 15 vol% were prepared by ultrasonication and milling with 5-mm balls. The dispersion stability was evaluated by sedimentation test and re-dispersion behavior of sediment as well as mesurement of slurry viscosity and aggregate size. The dispersion stability in suspensions after ultrasonic treatment was much higher than those by ball milling. Sediments from ultrasonicated slurry could easily return to the condition of original slurry even by slow stirring, however, sediments from ball milled one could not recover. The optimum molecular weight of PAA for re-dispersion behavior of the sediment by ultrasonic treatment was 8000 g/mol.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 55(4), 263-269, 2008-04-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10021173041
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    05328799
  • NDL 記事登録ID
    9488306
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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