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À propos de : Electrophoresis of Carreau-Drop Dispersions with a Charge-RegulatedSurface        

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  • Electrophoresis of Carreau-Drop Dispersions with a Charge-RegulatedSurface
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  • The electrophoresis of a liquid−liquid dispersion, where the dispersed phase comprises drops of a shearing-thinningCarreau fluid with a charge-regulated surface and the dispersion medium is an aqueous electrolyte solution, is analyzedtheoretically under the conditions of low surface potential, uniform weak applied electric field, and arbitrary doublelayer thickness. This is the first attempt for the description of the electrophoretic behavior of a dispersion containingnon-Newtonian drops with a charge-regulated surface. We show that, in general, the more significant the shear-thinning nature of the drop fluid, the lower the concentration of drops, the lower the pH of bulk solution, or the higherthe concentration of dissociable functional groups on drop surface, the larger the mobility. Also, the mobility of adrop may exhibit a local maximum as the thickness of the electric double layer surrounding it varies.
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