期刊
COMPTES RENDUS PHYSIQUE
卷 4, 期 2, 页码 231-239出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/S1631-0705(03)00027-6
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The drying of sessile drops of a complex liquid can lead to various types of surface distortion and final shapes. Here we investigate the desiccation of drops for two different systems: colloidal particle suspensions and polymer solutions. During solvent loss, the non-volatile compounds accumulate near the vapor/drop interface and, depending on the experimental conditions, they can form a permeable rigid skin (a gelled or glassy skin) displaying a buckling instability. In some cases secondary instabilities also take place. Although the nature and the physicochemical properties of the two systems are quite different, the shape evolutions show a remarkable similarity. A good agreement is found with a description based on the comparison of the characteristics times involved in the problem. To cite this article: L Pauchard, C Allain, C R. Physique 4 (2003). (C) 2003 Academie des sciences/Editions scientifiques et medicales Elsevier SAS. All rights reserved.
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