Stability of Ultrasonicated TiO2 Nanoparticles Slurry
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- Sato Kimitoshi
- National Institute for Materials Science, Nano Ceramics Center
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- Li Ji-Guang
- National Institute for Materials Science, Nano Ceramics Center
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- Kamiya Hidehiro
- Tokyo University of Agriculture and Technology, BASE
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- Ishigaki Takamasa
- National Institute for Materials Science, Nano Ceramics Center
Bibliographic Information
- Other Title
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- 超音波分散した酸化チタンナノ粒子スラリーの安定性
- チョウオンパ ブンサンシタ サンカ チタン ナノ リュウシ スラリー ノ アンテイセイ
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Abstract
Dispersion behavior of aqueous suspensions of TiO2 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.
Journal
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- Journal of the Japan Society of Powder and Powder Metallurgy
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Journal of the Japan Society of Powder and Powder Metallurgy 55 (4), 263-269, 2008
Japan Society of Powder and Powder Metallurgy
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Details 詳細情報について
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- CRID
- 1390282681284474496
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- NII Article ID
- 10021173041
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- NII Book ID
- AN00222724
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- COI
- 1:CAS:528:DC%2BD1cXltFykt7o%3D
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- ISSN
- 18809014
- 05328799
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- NDL BIB ID
- 9488306
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed