The stabilizer, so-called emulsifier, is generally a surfactant or a surfactant-cosurfactant mixture. Oil refers to a nonpolar phase, such as hydrocarbons, natural triglycerides or their derivatives. Water is generally an aqueous solution containing different electrolytes as well as other solutes. Palabras clave: Emulsión, formulación, agitación, tamaño de gota.Įmulsions are found in many natural and man-made products and industrial processes like polymerization, food conditioning, paint manufacturing, petroleum production, asphalt application, cosmetics and pharmaceuticals, etc.Įmulsification is carried out in most cases by stirring a surfactant-oil-water (SOW) system. Después de describir las tendencias generales encontradas en investigaciones recientes, se especifican las condiciones para lograr el mínimo tamaño de gota en el espacio tridimensional formulación-composición-agitación. Key words: Emulsion, formulation, stirring, drop size.Įl rendimiento de emulsionación, que se puede estimar por la disminución del tamaño de gota al agitar un sistema surfactante-agua-aceite está regido por: 1) las variables de formulación físico-química que dependen de la naturaleza del agua, del aceite, y del emulsionante, 2) las variables de composición, 3) las variables que caracterizan las condiciones de agitación.
After reporting the general trends found in previous research, the best compromise situations to attain a minimum drop size are located in a three dimensional formulation-composition-stirring space. e., the reduction of drop size when a surfactant-oil-water system is stirred, can be altered by changing: 1) the physicochemical formulation variables which are linked to the nature of the water, oil, and emulsifier, 2) the composition variables and 3) the variables which characterize the mechanical energy supplied by the stirring device. Laboratorio FIRP, Escuela de Ingeniería Química, Universidad de Los Andes. Mirella Pérez de Sánchez and Marta Ramírez de Gouveia
Jean-Louis Salager, José María Andérez, María Isabel Briceño, Emulsification yield related to formulation
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