Surfactant loss: Effects of temperature, salinity, and wettability

Noll, Leo A.; Gall, B.L.; Crocker, M.E.; Olsen, D.K.

doi:10.2172/6272744

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Surfactant Adsorption and Surface Properties1

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2003

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“…185 Temperature can also alter wettability by affecting either the surfactant or the surfactant-surface adsorption characteristics. 186,187 Adsorption at L/L interfaces. It was pointed out earlier that surfactant adsorption at liquid interfaces can influence emulsion stability by lowering interfacial tension, increasing surface elasticity, increasing electric double layer repulsion (ionic surfactants), lowering the effective Hamaker constant, and possibly increasing surface viscosity.…”

Section: Surfactant Adsorption and Surface Propertiesmentioning

confidence: 99%

2 Surfactants and their applications

Schramm

Stasiuk

Marangoni

2003

Annu. Rep. Prog. Chem., Sect. C: Phys. Chem.

543

323

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Surfactants form a unique class of chemical compounds. This review provides an introduction to the nature and physical properties of surfactants, emphasizing their ability to radically alter surface and interfacial properties and to self-associate and solubilize themselves in micelles. These properties provide the means to apply surfactants in wettability modification, detergency, and the displacement of liquid phases through porous media on one hand, and to stabilize dispersions (including foams, froths and emulsions), or to destabilize dispersions (again including foams and emulsions) on the other hand. These in turn lead to a vast array of practical application areas which are illustrated in terms of mineral and petroleum processing, biological systems, health and personal care products, foods, and crop protection.

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Section: Surfactant Adsorption and Surface Propertiesmentioning

confidence: 99%