Methods of manipulating surfaces for extreme hydrophilic, hydrophobic or omniphobic behavior and applications thereof
US12054831B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2019 |
| Grant date | Aug 6, 2024 |
| Priority date | — |
| Expiry date | Aug 15, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D11/26
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A surface modification method involves oxidizing a surface of a material and etching the surface, and repeating the oxidizing and etching one or more times until desired nanostructures are created in the surface. The desired nanostructures make the nanostructured surface superhydrophilic. Hydrophilic properties of the surface may be further developed by application of hydrophilic material, and by application of functionalized micro/nanoparticles to the hydrophilic material. Substitution of hydrophobic material for the hydrophilic material creates a superhydrophobic surface. Further addition of an omniphobic coating to the functionalized micro/nanoparticles creates a durable omniphobic surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.