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Title
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Dynamic surface and interfacial-tensions of surfactant and polymer-solutions
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Author
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Abstract
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| Dynamic surface and interfacial tensions are the most frequently measured non-equilibrium properties of adsorption layers at liquid interfaces. The review presents the theoretical basis of adsorption kinetics, taking into consideration different adsorption mechanisms, and specific experimental conditions, such as liquid flow and interfacial area changes. Analytical solutions, if available, approximations as well as numerical procedures for direct solution of the physical models are presented. Several experimental techniques are discussed frequently used in studies of the dynamic adsorption behaviour of surfactants and polymers at liquid interfaces: drop volume, maximum bubble pressure, and pendent drop technique, drop pressure tensiometry, pulsating bubble and elastic ring method. Experimental results, most of all obtained with different technique on one and the same surfactant system, are then discussed on the basis of current theories. Finally, the role of dynamic interfacial properties in several practical applications is discussed: foam and emulsion film formation and stabilisation, rising of bubbles and drops in a surfactant solution. |
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Language
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English
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Source (journal)
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Advances in colloid and interface science. - Amsterdam
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Publication
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Amsterdam
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1994
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ISSN
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0001-8686
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DOI
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10.1016/0001-8686(94)80017-0
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Volume/pages
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49
, p. 249-302
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ISI
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A1994NM40200008
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Full text (Publisher's DOI)
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