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US 2019/0169460 A1Published application
Hydrophobic coatings that include nanoparticles
OwnerEric Loth, Ilker Bayer +1inventors
InventorsEric Loth, Ilker Bayer, K Ghokulla Krishnan
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Abstract
A coating and related methods useful for reducing insect residue on moving surfaces, such as turbine blades or aircraft. The coating can include alternating layers of a perfluorinated acrylic copolymer and silicon dioxide nanoparticles that have been infused into one another via thermal annealing processes. The coating may be super-hydrophobic and exhibits desirable durability characteristics.
Claims20
A coating on a substrate, wherein the coating comprises:
- a first layer that includes a perfluorinated acrylic copolymer;
- a second layer that includes silicon dioxide nanoparticles and wherein the second layer is disposed adjacent to the first layer,
- wherein the first layer and the second layer are partially infused into one another.
A method of coating a substrate, wherein the method comprises:
- forming a first layer over the substrate, wherein forming the first layer includes spraying a first solution that includes perfluorinated acrylic copolymer dissolved in a first solvent;
- forming a second layer over the substrate, wherein forming the second layer includes spraying a second solution onto a surface of the first layer, wherein the second solution includes silicon dioxide nanoparticles and a second solvent;
- and
- heating the substrate, wherein heating the substrate results in the second layer partially infusing into the first layer, thereby forming the coating on the substrate.
1 more element
Dependencies are inferred from the claim text.