Spontaneous emulsification at the water/oil interface Article

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Overview

abstract

• Emulsification processes usually require the application of external energy to enlarge the interfacial area between both media. We study here a case where practically no external energy is required to form an emulsion, i.e., it is produced spontaneously when both liquids are put in contact in the presence of one surfactant species. We report the observation and measurements of the kinetics of the spontaneous formation and growth of water droplets at the water/oil. . lipophilic surfactant interface. The droplets can reach sizes up to several microns, and their growth is found to obey a power law for a range of the surfactant concentration. © 2012 Elsevier B.V.
• Emulsification processes usually require the application of external energy to enlarge the interfacial area between both media. We study here a case where practically no external energy is required to form an emulsion, i.e., it is produced spontaneously when both liquids are put in contact in the presence of one surfactant species. We report the observation and measurements of the kinetics of the spontaneous formation and growth of water droplets at the water/oil. %2b. lipophilic surfactant interface. The droplets can reach sizes up to several microns, and their growth is found to obey a power law for a range of the surfactant concentration. © 2012 Elsevier B.V.

authors

• Arauz Lara Bernardo José Luis
• Ozuna-Chacón S.
• Quezada C.M.
• Santana-Solano J.

publication date

• 2012-01-01

funding provided via

• Consejo Nacional de Ciencia y Tecnología, CONACYT: 82835, 84076  Grant

published in

• Colloids and Surfaces A: Physicochemical and Engineering Aspects  Journal

Research

keywords

• Droplet growth; Spontaneous emulsification; Water droplets; Water-oil interface Drops; Growth kinetics; Surface active agents; Droplet growth; Emulsification process; External energy; Interfacial areas; Lipophilic surfactants; Observation and measurement; Spontaneous emulsification; Spontaneous formation; Surfactant concentrations; Water droplets; Water oil interface; Water/oil interfaces; Emulsification; oil; water; article; confocal microscopy; emulsion; energy; image analysis; lipophilicity; particle size; priority journal

Identity

Digital Object Identifier (DOI)

• 10.1016/j.colsurfa.2012.02.032

Additional Document Info

start page

• 78

end page

• 82

volume

• 399