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Issue 1, 2015
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Surface patterns in drying films of silica colloidal dispersions

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Abstract

We report an experimental study on the drying of silica colloidal dispersions. Here we focus on surface instability occurring in a drying paste phase before crack formation which affects the final film quality. Observations at macroscopic and microscopic scales reveal the occurrence of instability, and the morphology of the film surface. Furthermore, we show that the addition of adsorbing polymers on silica particles can be used to suppress the instability under particular conditions of molecular weight and concentration. We relate this suppression to the increase of the paste elastic modulus.

Graphical abstract: Surface patterns in drying films of silica colloidal dispersions

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Publication details

The article was received on 19 Sep 2014, accepted on 14 Oct 2014 and first published on 05 Nov 2014


Article type: Paper
DOI: 10.1039/C4SM02106A
Citation: Soft Matter, 2015,11, 102-108
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    Surface patterns in drying films of silica colloidal dispersions

    F. Boulogne, F. Giorgiutti-Dauphiné and L. Pauchard, Soft Matter, 2015, 11, 102
    DOI: 10.1039/C4SM02106A

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