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Pressure induced transition between superhydrophobic states: Configuration diagrams and effect of surface feature size

“…This condition defines a maximum of Eq. (10). Once this condition is achieved, the meniscus spontaneously moves to make contact with the substrate under the applied pressure.…”

“…Relative surface energy and, more importantly, surface topography, are the two main contributors to this superhydrophobic effect. Although first demonstrated by Oliver et al on grooved surfaces in 1977 [4], superhydrophobicity has received much attention [5][6][7][8][9][10][11][12][13][14][15] in the past decade. Even though many artificial superhydrophobic surfaces have been developed during this period, the basic concepts of how surface topography affects wetting has been known for a much longer period.…”

Design of a Transparent Hydrophobic Coating

“…We prepared a transparent superhydrophobic polymer film with a brightness enhancement property using brightness enhancement film (BEF; 3M Inc.), fluoroacrylic resin, and colloidal silica. 23) This film is applicable to illumi nations near water or that in cold regions for antibeading or antisnowadhesion. Results demonstrated that superhydro phobic films prepared with a roughness combination can acquire an additional roughnessoriented property.…”

Formation mechanism of super water-repellent fractal surfaces of alkylketene dimer

“…In the former trial, fluorinated compounds with low surface energy were usually used, while several nano-or micro-textured or fractal structures on the surfaces were formed in the later case. Various approaches to prepare super water-repellent surfaces have been reported including melt-solidification of a wax, [11][12][13][14] silica and oxidized alumina films through the sol-gel method, [15][16][17] plasma-based etching or deposition, 18,19 gel-like roughened polypropylene, 20 anodically oxidized aluminum, 21,22 etched copper and electrodeposited copper, 23 electrochemical polymerization, 24 layer-by-layer assembly together with electrodeposition, 25 solution-immersion, 26 polymer/nanoparticle composite films, 27,28 films of aligned carbon nanotubes, polymer nanofibers and inorganic nanorods. [29][30][31][32][33][34][35][36] Effects of geometric length scales, surface roughness and surface energy on the wettability of super water-repellent surfaces were extensively discussed from physical and chemical points of view.…”