Surfactants – classification, features and applications

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Surfactants classification, features and applicationsSurfactants classification, features and applicationsN. D. Denkovand S. TcholakovaDepartment of Chemical Engineering,Faculty of Chemistry, Sofia University, Sofia, BulgariaLecture at COST P21 Training School Physics of droplets: Basic and advanced topics Borovets, Bulgaria, 12 13 July, 20101. Classification of Particles as foam and emulsion Role of Surfactants for various foam and emulsion properties:(a) Thin film drainage and stability(b) Foam rheology(c) Foam drainage(d) Ostwald ripening4. Current Low molecular mass Surfactants 9Nonionic 9Ionic9Amphoteric Polymeric surfactants9Synthetic9Natural Particles as surfactant species9Spherical vs. non-spherical9Hydrophilic vs. hydrophobic1. Classification of surfactantsLow-molecular mass surfactants1.

surface mobility", Colloids Surfaces A 263 (2005) 129. S. Tcholakova et al., “Theoretical model of viscous friction inside steadily sheared foams and concentrated emulsions”, Phys. Rev. E 78 (2008) 011405. K. Golemanov et al., “Surfactant mixtures for control of bubble surface mobility in foam studies”, Langmuir 24 (2008) 9956.

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