Journal Article

PreJuSER-53839

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Influence of surface roughness on superhydrophobicity

Yang, C.FZJ* ; Tartaglino, U. ; Persson, B. N. J.FZJ*

2006
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/1454  doi:10.1103/PhysRevLett.97.116103

Abstract: Superhydrophobic surfaces, with a liquid contact angle theta greater than 150 degrees, have important practical applications ranging from self-cleaning window glasses, paints, and fabrics to low-friction surfaces. Many biological surfaces, such as the lotus leaf, have a hierarchically structured surface roughness which is optimized for superhydrophobicity through natural selection. Here we present a molecular dynamics study of liquid droplets in contact with self-affine fractal surfaces. Our results indicate that the contact angle for nanodroplets depends strongly on the root-mean-square surface roughness amplitude but is nearly independent of the fractal dimension D-f of the surface.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Theorie I (IFF-TH-I)

Research Program(s):

1. Kondensierte Materie (P54)

Appears in the scientific report 2006
Notes: This version is available at the following Publisher URL: http://prl.aps.org

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