Green Functional Coatings Showing Excellent Liquid Sliding Properties

Abstract

Until now, the wettability of solid surfaces has been simply estimated by the magnitude of their static contact angles (CAs). However, if we can control CA hysteresis (difference between advancing and receding CAs), the liquid sliding properties can be markedly improved independent of the magnitude of static CAs. In this review, the author will introduce how to prepare green functional coatings showing excellent liquid sliding properties not relying on specific micro/nanostructures or perfluorinated compounds which have a large environmental burden, but use only ubiquitous elements.