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McHale, G., Shirtcliffe, N.J., Aqil, S., Perry, C.C. 
ORCID: 0000-0003-1517-468X and Newton, M.I. ORCID: 0000-0003-4231-1002,
2004.
Topography driven spreading.
Physical Review Letters, 93 (3): 036102.
ISSN 0031-9007
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Abstract
Roughening a hydrophobic surface enhances its non-wetting properties into superhydrophobicity. For liquids other than water, roughness can induce a complete roll-up of a droplet. However, topographic effects can also enhance partial wetting by a given liquid into complete wetting to create super-wetting. In this work, a model system of spreading droplets of a non-volatile liquid on surfaces having lithographically produced pillars is used to show that super-wetting also modifies the dynamics of spreading. The edge speed-dynamic contact angle relation is shown to obey a simple power-law and such power laws are shown to apply to naturally occurring surfaces.
| Item Type: | Journal article | ||||
|---|---|---|---|---|---|
| Description: | Post-print | ||||
| Publication Title: | Physical Review Letters | ||||
| Creators: | McHale, G., Shirtcliffe, N.J., Aqil, S., Perry, C.C. and Newton, M.I. | ||||
| Publisher: | American Physical Society | ||||
| Place of Publication: | College Park, Md. | ||||
| Date: | 2004 | ||||
| Volume: | 93 | ||||
| Number: | 3 | ||||
| ISSN: | 0031-9007 | ||||
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| Rights: | Copyright ©2004 The American Physical Society | ||||
| Divisions: | Schools > School of Science and Technology | ||||
| Record created by: | EPrints Services | ||||
| Date Added: | 09 Oct 2015 10:52 | ||||
| Last Modified: | 12 Aug 2022 09:22 | ||||
| URI: | https://irep.ntu.ac.uk/id/eprint/19450 |
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