Uso de la teoría de Lifshitz -Slyosov-Wagner para la predicción del tamaño de gota de una emulsión sujeta a floculación y coalescencia

• Autores: Kareem Rahn Chique, German Urbina Villalba
• Localización: Interciencia: Revista de ciencia y tecnología de América, ISSN 0378-1844, Vol. 40, Nº. 12, 2015, págs. 847-853
• Idioma: español
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• Resumen

  • A novel theoretical expression for the estimation of the temporal variation of the drop size of an oil-in-water (o/w) nanoemulsion subject to flocculation, coalescence and Ostwald ripening is proposed. It is based on the experimental evaluation of the mixed flocculation-coalescence rate. The predictions of the theory are contrasted with experimental results corresponding to a set of dodecane-in-water nanoemulsions stabilized with sodium dodecylsulfate. A satisfactory agreement is found whenever the size-dependence of the aggregates is conveniently represented