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- Title
非水溶媒中粒子の可逆的分散状態制御.
- Authors
佐藤根 大士; 今井田 直樹; 毛利 奈緒; 飯村 健次; 那須 昭夫
- Abstract
In this study, a novel reversible control method of particle dispersion/flocculation for nonaqueous solvent was developed. Titanium oxide was used as sample powder. Cyclopentasiloxane was used as solvent and Polyoxyethylene polyalkylsiloxane was used as a dispersant. First, a well-dispersed slurry was prepared by adding dispersant. After preparation, alcoholic amphiphilic molecule was added to the well-dispersed slurry to convert it from liquid to a gellike consistency, which was caused by the hydrogen bond of dispersant on the surface of the particles. The resultant gel could easily be changed to liquid state by shaking. In addition, the slurry reverted back to gel state after a certain period of time. It was found that the relative permittivity and the additive amount of amphiphilic molecule has an influence on the strength of the gel.
- Subjects
NONAQUEOUS solvents; PERMITTIVITY; TITANIUM oxides; HYDROGEN bonding; POLYETHYLENE glycol; SLURRY; FLOCCULATION
- Publication
Journal of the Society of Powder Technology, Japan, 2022, Vol 59, Issue 6, p291
- ISSN
0386-6157
- Publication type
Article
- DOI
10.4164/sptj.59.291