Multilayer liquid spreading on superhydrophilic nanostructured surfaces
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Wang_Multilayer liquid.pdf
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Author(s)
Xiao, Rong
Chu, Kuang-Han
Wang, Evelyn N.
Date Issued
May 2009
Journal
Applied Physics Letters
Publisher
American Institute of Physics
Citation
Xiao, Rong, Kuang-Han Chu, and Evelyn N. Wang. "Multilayer liquid spreading on superhydrophilic nanostructured surfaces." Appl. Phys. Lett. 94, 193104 (2009) ; doi:10.1063/1.3127461 (3 pages) © 2009 American Institute of Physics
Version
Final published version
Abstract
A phenomenon is presented where a propagating liquid on an array of nanopillars with scalloped features can separate into multiple layers of liquid films. The scallops were found to act as energy barriers that favor liquid separation into several layers over spreading in a uniform film. An analytical model based on surface energy was developed to explain the phenomenon. Additional tailored pillar geometries were fabricated and tested to validate the theory and model. The results provide design guidelines for geometries that promote multiple layer separation and offer opportunities to control liquid film thickness on superhydrophilic surfaces.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1063/1.3127461
