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Electroviscous effects, in chemistry of colloids and surface chemistry, according to an IUPAC definition,〔IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. . Entry: (electroviscous effects ).〕 are the effects of the particle surface charge on viscosity of a fluid. Viscoelectric is an effect by which an electric field near a charged interface influences the structure of the surrounding fluid and affects the viscosity of the fluid.〔Vincent A. Hackley, Chiara F. Ferraris, "The Use of Nomenclature in Dispersion Science and Technology", NIST Recommended Practice Guide, NIST, Special Publication 960-3, 2001.〕 Kinematic viscosity of a fluid, η, can be expressed as a function of electric potential gradient, E, by an equation in the form: :η=η0(1+f E2), where f is the viscoelectric coefficient of the fluid. The value of f for water (ambient temperature) has been estimated to be (0.5–1.0) × 10−15 V−2 m2.〔Robert J. Hunter and J. V. Leyendekkers, "Viscoelectric coefficient for water", J. Chem. Soc., Faraday Trans. 1, 1978, 74, 450-455.〕 ==See also== * Constrictivity * Electrorheological fluid * Wien effect 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Electroviscous effects」の詳細全文を読む スポンサード リンク
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