title: Superhydrophobic films from raspberry-like particles.
abstract: We report a robust procedure for preparing superhydrophobic hybrid films on which the advancing contact angle for water is about 165 degrees and the roll-off angle of a 10-muL water droplet is 3 +/- 1 degrees . Dual-size surface roughness, which mimics the surface topology of self-cleaning plant leaves, originates from well-defined silica-based raspberry-like particles that are covalently bonded to an epoxy-based polymer matrix. The roughened surface is chemically modified with a layer of poly(dimethylsiloxane) (PDMS). The robustness and simplicity of this procedure may make widespread applications of so-prepared superhydrophobic films possible.
authors.affiliation: Laboratory of Materials and Interface Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands. w.ming@tue.nl
authors.forename: W
authors.initials: W
authors.lastname: Ming
authors.forename: D
authors.initials: D
authors.lastname: Wu
authors.forename: R
authors.initials: R
authors.lastname: van Benthem
authors.forename: G
authors.initials: G
authors.lastname: de With