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Download fileDynamical density functional theory for the drying and stratification of binary colloidal dispersions
journal contribution
posted on 01.03.2021, 16:39 authored by Boshen He, Ignacio Martin-Fabiani, Roland Roth, Gyula TothGyula Toth, Andrew ArcherAndrew ArcherWe develop a dynamical density functional theory based model for the drying of colloidal films on planar surfaces. We consider mixtures of two different sizes of hard-sphere colloids. Depending on the solvent evaporation rate and the initial concentrations of the two species, we observe varying degrees of stratification in the final dried films. Our model predicts the various structures described in the literature previously from experiments and computer simulations, in particular the small-on-top stratified films. Our model also includes the influence of adsorption of particles to the interfaces.
Funding
EPSRC
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School
- Aeronautical, Automotive, Chemical and Materials Engineering
- Science
Department
- Materials
- Mathematical Sciences