title: Silica/silicone nanofilament hybrid coatings with almost perfect superhydrophobicity.
abstract: A facile method for the preparation of silica/silicone nanofilament hybrid coatings with almost perfect superhydrophobicity (contact angle=179.8° and sliding angle=1.3°) is presented. The coatings are obtained by dip-coating of silica nanoparticles, followed by chemical vapor deposition of silicone nanofilaments. Predominant growth of silicone nanofilaments onto aggregated silica nanoparticles generates a two-tier structure. The effect of silica nanoparticle size on the growth of silicone nanofilaments, along with their anti-wetting properties and transparency are investigated in detail. Surface roughness and anti-wetting properties can be simply regulated by controlling the size of silica nanoparticles.
authors.affiliation: Physikalisch-Chemisches Institut, Universität Zürich Irchel, Winterthurerstrasse 190, 8057 Zürich, Switzerland.
authors.forename: Junping
authors.initials: J
authors.lastname: Zhang
authors.forename: Stefan
authors.initials: S
authors.lastname: Seeger
mesh_terms: D005898:Glass; D057927:Hydrophobic and Hydrophilic Interactions; D053758:Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D012822:Silicon Dioxide / Q000737:chemistry*; D012828:Silicones / Q000737:chemistry*
chemical_list: D012828:Silicones; D012822:Silicon Dioxide