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The concentration effect of surfactants on zeta-potential in non-aqueous dispersions

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  • Colloid Science
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Summary

The concentration effect of surfactants on zetapotential in nonaqueous suspensions was classified into two main types. The type A in which the maximum appears is more important. The result obtained for carbon black dispersed in the cyclohexane solutions of Aerosol OT or dodecylammonium butyrate showed the type A. An equilibrium theory elucidating the concentration effect was proposed and the equilibrium constants and the surface site concentrations were estimated for one of the above systems, using the relation between ion and surfactant concentrations obtained previously.

Zusammenfassung

Der Einfluß der Tensidkonzentration auf das Zetapotential in nichtwäßrigen Suspensionen wurde in zwei Typen klassifiziert. Der Typ A, welcher ein Maximum in der Kurve zeigt, ist wichtiger. Ergebnisse mir dispergiettem Ruß in Cyclohexan-Lösung von Aerosol OT oder Dodecylammonium-Butyrat zeigten den Typ A. Eine Gleichgewichtstheorie, die den Einfluß der Konzentration erläutern kann, wurde vorgeschlagen. Die Gleichgewichtkonstanten und die Konzentrationen der Oberflächensitze wutden für das oben erwähnte System berechner.

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Authors and Affiliations

  1. Department of Engineering, Science University of Tokyo, Kagurazaka, Shinjiku-ku, Tokyo, Japan

    A. Kitabara

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  1. A. Kitabara
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  2. M. Amano
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  3. S. Kawasaki
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  4. K. Kon-no
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Kitabara, A., Amano, M., Kawasaki, S. et al. The concentration effect of surfactants on zeta-potential in non-aqueous dispersions. Colloid & Polymer Sci 255, 1118–1121 (1977). https://doi.org/10.1007/BF01549899

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  • DOI: https://doi.org/10.1007/BF01549899

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