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US 12,655,298 B2Granted
Superhydrophobic surfaces
AssigneeQueen Mary University of London
InventorsColin R. Crick, Rebekah Louise Upton
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AssigneeQueen Mary University of London
InventorsColin R. Crick, Rebekah Louise Upton
Estimating the term…
A superhydrophobic film for coating a substrate. The superhydrophobic film comprises a plurality of nanoparticles joined together to form a continuous film, each nanoparticle having a polymer coating, wherein the ratio of average particle size of the nanoparticles to the average thickness of their polymer coatings is from 2.5:1 to 20:1. The superhydrophobic film suitably provides a durable, UV resistant coating which maintains a high water contact angle during use. A method of preparing a superhydrophobic film on a substrate is also disclosed, the method comprising admixing nanoparticles and a polymer to form nanoparticles having a polymer coating and applying the nanoparticles having a polymer coating to the substrate to form the superhydrophobic film. A formulation for coating an article with such a superhydrophobic film is also disclosed.
A superhydrophobic film comprising an agglomeration of polymer-coated nanoparticles, wherein the polymer-coated nanoparticles comprise nanoparticles and polymer coatings on the nanoparticles, wherein the ratio of the volume of the polymer coating to the volume of the nanoparticles is from 1:1 to 1:3 and the polymer-coated nanoparticles have a ratio of average particle size of nanoparticles to average thickness of their polymer coatings of from 2.5:1 to 20:1, wherein the polymer of the polymer coatings is selected from a group consisting of:
Dependencies are inferred from the claim text.