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Title: Dynamic stratification in drying films of colloidal mixtures
Authors: Fortini, Andrea
Martin-Fabiani, Ignacio
Lesage de la Haye, Jennifer
Dugas, Pierre-Yves
Lansalot, Muriel
D'Agosto, Franck
Bourgeat-Lami, Elodie
Keddie, Joseph L.
Sear, Richard P.
Issue Date: 2016
Publisher: © American Physical Society
Citation: FORTINI, A. ... et al, 2016. Dynamic stratification in drying films of colloidal mixtures. Physical Review Letters, 116 (11), pp. 118301-1-118301-5.
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.
Description: This paper was accepted for publication in the journal Physical Review Letters and the definitive published version is available at http://dx.doi.org/10.1103/PhysRevLett.116.118301.
Sponsor: European Union Seventh Framework Programme BARRIER-PLUS project (FP7-SME-2012-2, No. 304758).
Version: Accepted for publication
DOI: 10.1103/PhysRevLett.116.118301
URI: https://dspace.lboro.ac.uk/2134/24875
Publisher Link: http://dx.doi.org/10.1103/PhysRevLett.116.118301
ISSN: 0031-9007
Appears in Collections:Published Articles (Materials)

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