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Kinetics of turbulent hetero-coagulation of oppositely charged colloidal particles
http://hdl.handle.net/2241/00124903
http://hdl.handle.net/2241/00124903f9d0fa49-9f22-4fc9-9ac5-2d67f21e2b6b
名前 / ファイル | ライセンス | アクション |
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TAMJ_63 (1.2 MB)
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Item type | Journal Article(1) | |||||
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公開日 | 2015-07-03 | |||||
タイトル | ||||||
タイトル | Kinetics of turbulent hetero-coagulation of oppositely charged colloidal particles | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
SUGIMOTO, Takuya
× SUGIMOTO, Takuya× WATANABE, Yuji× KOBAYASHI, Motoyoshi |
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著者別名 |
小林, 幹佳
× 小林, 幹佳 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We investigated the hetero-coagulation rates between oppositely charged particles subjected to a turbulent flow. The turbulent hetero-coagulation was induced by mixing and stirring the aqueous suspensions of positively and negatively charged latex particles. The sign and magnitude of the surface charge densities of the particles were conrmed by the analysis of measured electrophoretic mobilities. The turbulent coagulation experiments were carried out as a function of particle diameter, KCl concentration, and turbulent intensity. The rate of coagulation was obtained by measuring temporal change of suspension turbidity. The experimental results show that the hetero-coagulation rate constant increases with decreasing KCl concentration and with increasing particle size and turbulent intensity. These trends qualitatively agree with the theoretical prediction based on the aggregation kinetics in a turbulent ow combined with a trajectory analysis including the attractive electrostatic interactions. The facilitated coagulation rates in lower KCl concentrations are considered to be due to the increase of the magnitude of attractive electrostatic force accompanied by the development of electrical double layer. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 第63回理論応用力学講演会(The 63rd National Congress of Theoretical and Applied Mechanics)における英文論文集 | |||||
書誌情報 |
Theoretical and applied mechanics Japan 巻 63, p. 133-145, 発行日 2015 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1348-0693 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00862666 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.11345/nctam.63.133 | |||||
著者版フラグ | ||||||
値 | publisher | |||||
出版者 | ||||||
出版者 | National Committee for IUTAM | |||||
出版者別名 | ||||||
出版者 | 日本学術会議 「機械工学委員会・土木工学・建築学委員会合同IUTAM分科会」 |