Dynamic stratification in drying films of colloidal mixtures
Soft Condensed Matter
2016-03-25 v2 Materials Science
Statistical Mechanics
Abstract
In simulations and experiments, we study the drying of films containing mixtures of large and small colloidal particles in water. During drying, the mixture stratifies into a layer of the larger particles at the bottom with a layer of the smaller particles on top. We developed a model to show that a gradient in osmotic pressure, which develops dynamically during drying, is responsible for the segregation mechanism behind stratification.
Cite
@article{arxiv.1602.01106,
title = {Dynamic stratification in drying films of colloidal mixtures},
author = {Andrea Fortini and Ignacio Martín-Fabiani and Jennifer Lesage De La Haye and Pierre-Yves Dugas and Muriel Lansalot and Franck D'Agosto and Elodie Bourgeat-Lami and Joseph L. Keddie and Richard P. Sear},
journal= {arXiv preprint arXiv:1602.01106},
year = {2016}
}
Comments
Accepted for publication in Physical Review Letters. Supplementary Material added as Appendix