Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 351, Issue 1, Pages 283-287Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2010.07.037
Keywords
Superhydrophobic; Droplet drying; Coffee ring effect; Suspension; Spontaneous manufacturing
Categories
Funding
- Engineering and Physical Science Research Council [EP/E046193]
Ask authors/readers for more resources
Recent research on the flow patterns during the drying of droplets of solutions or suspensions has revealed a characteristic flow of dissolved or suspended material to the droplet periphery to produce the 'coffee ring' phenomenon. This effect was used to make ceramic well-plates by spontaneous manufacturing. Here we demonstrate that when a colloidal droplet dries on a superhydrophobic surface, the effect is rather different. Evaporation from the region adjacent to the three phase line becomes so restricted that the interior flows, and hence the final destination of particles, changes and the characteristic bowl-shape becomes inverted. (C) 2010 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available