Issue 3, 2013

The buckling and invagination process during consolidation of colloidal droplets

Abstract

Drying a droplet of colloidal dispersion can result in complex pattern formation due to both development and deformation of a skin at the drop surface. The present study focuses on the drying process of droplets of colloidal dispersions in a confined geometry where direct observations of the skin thickness are allowed. During the drying process, a buckling process is followed by a single depression growth inside the drop. The deformation of the droplet is found to be generic and is studied for various colloidal dispersions. The final shape can be partly explained by simple energy analysis based on the competition between bending and stretching deformations. Particularly, the final shape enables us to determine precisely the critical thickness of the shell for buckling. This study allows us to validate theory in 2D droplets and apply it to the case of 3D droplets where the thickness is not accessible by direct observation.

Graphical abstract: The buckling and invagination process during consolidation of colloidal droplets

Article information

Article type
Paper
Submitted
02 Jul 2012
Accepted
22 Oct 2012
First published
08 Nov 2012

Soft Matter, 2013,9, 750-757

The buckling and invagination process during consolidation of colloidal droplets

F. Boulogne, F. Giorgiutti-Dauphiné and L. Pauchard, Soft Matter, 2013, 9, 750 DOI: 10.1039/C2SM26530C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements