Facile preparation of superhydrophobic coatings by sol–gel processes

Large-area fabrication of superhydrophobic surfaces for practical applications: an overview

“…Xiu et al [36] incorporated isobutyltrimethoxysilane into silica layers, which produced hydrophobic isobutyl surface groups and generated surface hydrophobicity. Taurino et al [37] selected commercial metal alkoxides, tetraethoxysilane, tetraethyl orthotitanate and tetra-n-propyl zirconate as precursors, taking their different reactivities into account. They utilized α,ω-triethoxysilane-terminated perfluoropolyether as a low-surface-energy material to prepare superhydrophobic coatings via a sol-gel process.…”

Insights into the superhydrophobicity of metallic surfaces prepared by electrodeposition involving spontaneous adsorption of airborne hydrocarbons

“…On the basis of this principle, a number of strategies have been developed to fabricate artificial superhydrophobic surfaces through controlling both of surface chemical composition and surface morphological structures. For example, superhydrophobic cotton textiles by solution immersion of polymethylsilsesquioxane [14], superhydrophobic coatings of organic/inorganic composites by sol-gel processes [15], superhydrophobic rose-like mordenire zeolites by hydrothermal synthesis and surface modification with octyltrimethoxysilane [16], superhydrophobic polystyrene films by phase separation [17], superhydrophobic silica-spherecoated substrates by fluorination treatment and layer-by-layer deposition of poly(diallyldimethylammonium chloride)/sodium silicate multilayer films [18], superhydrophobic substrates with dual-sized raspberry-like polystyrene/silica particles by colloidal self-assembly and surface modification with dodecyltrichlorosilane [19], superhydrophobic metal surfaces by electrodeposition [20,21] or electrooxidation [22] deposition [23], superhydrophobic aluminum alloy substrates by chemical etching in the presence of lauric acid [24], and so on [25,26].…”

Fluorine Based Superhydrophobic Coatings

“…Inspired by this phenomenon, we have recently transformed aluminum surfaces, copper and silicon surfaces superhydrophobic by first creating surface roughness using methods such as chemical bath deposition, electrochemical methods and chemical etching methods and then modifying those surfaces by either passivating using low surface energy molecules such as stearic acid or fluoroalkyl-silane or by coating with rf-sputtered Teflon thin films [6][7][8][9][10][11]. The multilayer deposition process of organic and inorganic materials [12,13] such as nanoparticles as rough hydrophobic material [14,15] are also techniques to obtain superhydrophobic surfaces.…”