Coupled Interfacial Tension and Phase Behavior Model Based on Micellar Curvatures.

07:00 EST 8th November 2017 | BioPortfolio

Summary of "Coupled Interfacial Tension and Phase Behavior Model Based on Micellar Curvatures."

This paper introduces a consistent and robust model that predicts interfacial tensions for all microemulsion Winsor types and overall compositions. The model incorporates film bending arguments and Huh's equation, and is coupled to phase behavior so that simultaneous tuning of both interfacial tension (IFT) and phase behavior is possible. The oil-water interfacial tension and characteristic length are shown to be related to each other through the hydrophilic-lipophilic deviation (). The phase behavior is tied to the micelle curvatures, without the need for using net average curvature (NAC). The interfacial tension model is related to solubilization ratios in order to introduce a coupled interfacial tension-phase behavior model for all phase environments. The approach predicts two- and three-phase interfacial tensions and phase behavior (i.e. tie lines and tie triangles) for changes in composition and input parameters, such as temperature, pressure, surfactant structure, and oil equivalent alkane carbon number. Comparisons to experimental data show excellent fits and predictive capability.


Journal Details

This article was published in the following journal.

Name: Langmuir : the ACS journal of surfaces and colloids
ISSN: 1520-5827


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