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US 11,472,931 B2Granted
Methods for preparing superhydrophobic nano-microscale patterned films
AssigneeNational Research Council of Canada
InventorsYadienka Martinez-Rubi, Benoit Simard, Stéphane Dénommée, Keun Su Kim, Fuyong Cheng
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Abstract
The present application discloses methods for preparing superhydrophobic nano-microscale patterned films, films pre-pared from such methods and uses of such films as superhydrophobic coatings. The superhydrophobic nano- microscale patterned films comprise high aspect ratio nanoparticles such as boron nitride nanotubes (BNNTs) and/or carbon nanotubes (CNTs).
Claims16
A method for preparing a superhydrophobic nano-microscale patterned film, the method comprising:
- filtering at least one suspension comprising high aspect ratio nanoparticles non-covalently functionalized with a conjugated polymer bearing alkyl side-chains in an organic solvent through a membrane having a desired microscale surface morphology to obtain a wet film, wherein the membrane microscale surface morphology is templated on a surface of the wet film;
- and
- drying the film to obtain the nano-microscale patterned superhydrophobic film.
Dependencies are inferred from the claim text.