title: Super-liquid-repellent surfaces prepared by colloidal silica nanoparticles covered with fluoroalkyl groups.
abstract: A simple and easy method to prepare super-liquid-repellent surfaces is proposed. Sol-gel films were prepared by hydrolysis and condensation of alkoxysilane compounds. Both surface energy and roughness were controlled using colloidal silica particles and fluoroalkylsilane. When the fractional amounts of both colloidal silica and fluoroalkylsilane were optimized in the films, the film surface exhibited repellency to both water and oil. Finally, it was shown that the method proposed here would be applied to a simple one-pot coating for a uniform large area, and be useful for practical use.
authors.affiliation: Japan Chemical Innovation Institute (JCII), 1-3-5 Kanda-Jimbocho, Chiyoda-ku, Tokyo 101-0051, Japan.
authors.forename: Masaya
authors.initials: M
authors.lastname: Hikita
authors.forename: Keiji
authors.initials: K
authors.lastname: Tanaka
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Nakamura
authors.forename: Tisato
authors.initials: T
authors.lastname: Kajiyama
authors.forename: Atsushi
authors.initials: A
authors.lastname: Takahara