Article ID Journal Published Year Pages File Type
8033692 Thin Solid Films 2016 27 Pages PDF
Abstract
We present a superhydrophobic coating made from waterborne, all-polymeric 'raspberry' particles, composed of a micrometric spherical core decorated with a corona of nanometric spherical particles. As-cast particles produced hydrophobic coatings that were highly adhesive to almost-spherical droplets of water, resembling the properties of some types of rose petals. The coatings could be made slippery to spherical water droplets, like the lotus leaf, by surface activation with air plasma followed by reaction with an alkyl-trichlorosilane. The silanisation of films of latex particles was investigated on two model surfaces (a flat polystyrene film and a monolayer of polystyrene waterborne microparticles) by X-ray photoelectron spectroscopy and water contact angle measurements, and applied to our recently-developed 'raspberry' particles to produce a superhydrophobic coating.
Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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