PRL2016.pdf (6.84 MB)
Dynamic stratification in drying films of colloidal mixtures
journal contribution
posted on 2017-05-04, 08:43 authored by Andrea Fortini, Ignacio Martin-Fabiani, Jennifer Lesage de la Haye, Pierre-Yves Dugas, Muriel Lansalot, Franck D'Agosto, Elodie Bourgeat-Lami, Joseph L. Keddie, Richard P. SearIn 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.
Funding
European Union Seventh Framework Programme BARRIER-PLUS project (FP7-SME-2012-2, No. 304758).
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Materials
Published in
Physical Review LettersVolume
116Issue
11Citation
FORTINI, A. ... et al, 2016. Dynamic stratification in drying films of colloidal mixtures. Physical Review Letters, 116 (11), pp. 118301-1-118301-5.Publisher
© American Physical SocietyVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2016-03-18Copyright date
2016Notes
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.ISSN
0031-9007eISSN
1079-7114Publisher version
Language
- en
