Superhydrophobic surfaces

摘要

The present invention relates to a surface of a substrate, or the substrate itself, exhibiting superhydrophobic characteristics when treated with a formulation comprising a hydrophobic component, nano-structured particles and water. The superhydrophobicity can be applied either over the entire surface, patterned throughout or on the substrate material, and/or directly penetrated through the z-directional thickness of the substrate material.

主权项

1. A superhydrophobic surface comprising a substrate treated with a superhydrophobic dispersion composition comprising:
a. a water-dispersible hydrophobic component, wherein the hydrophobic component comprises a perfluorinated polymer modified with a comonomer; b. a nanoclay comprising nano-structured particles; and c. water, wherein the surface treated with the superhydrophobic dispersion has a water contact angle greater than 150°, wherein the superhydrophobic dispersion composition is free of an organic solvent, and wherein the ratio of the weight of the nanoclay to the weight of the nanoclay and the hydrophobic component is above 0.2 and less than 0.5.