Composition for forming an optically transparent, superhydrophobic coating

摘要

A composition for producing an optically clear, well bonded superhydrophobic coating includes a plurality of hydrophobic particles comprising an average particle size of about 200 nm or less, a binder at a binder concentration of from about 0.1 wt. % to about 0.5 wt. %, and a solvent. The hydrophobic particles may be present in the composition at a particle concentration of from about 0.1 wt. % to about 1 wt. %. An optically transparent, superhydrophobic surface includes a substrate, a plurality of hydrophobic particles having an average particle size of about 200 nm or less dispersed over the substrate, and a discontinuous binder layer bonding the hydrophobic particles to the substrate, where the hydrophobic particles and the binder layer form an optically transparent, superhydrophobic coating.

主权项

1. An optically transparent, superhydrophobic article comprising:
an optically transparent substrate; a plurality of hydrophobic particles having an average particle size of less than 50 nm dispersed over the optically transparent substrate; and a discontinuous binder layer bonding the plurality of hydrophobic particles to the optically transparent substrate, the plurality of hydrophobic particles and the discontinuous binder layer forming an optically transparent, superhydrophobic coating, wherein the discontinuous binder layer comprises a plurality of discrete binder portions, wherein each of the plurality of discrete binder portions is localized at an interfacial region between one of the plurality of hydrophobic particles and the optically transparent substrate, and wherein each of the discrete binder portions decreases in thickness across the interfacial region in a direction away from each particle.