Transparent superhydrophobic composition
AssigneeUnited Protective Technologies, LLC
InventorsPeter Craig Venema, Brent William Barbee, Michael Raymond Greenwald
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Abstract
Provided herein is a film and methods of producing the same. The film includes a substrate and a layer adjacent to the substrate, wherein a surface of the layer comprises spaced apart protrusions. The methods include providing a substrate, depositing a layer on at least a portion of the substrate, decomposing the layer to form at least a first phase of material and a second phase of material, and removing at least a portion of the second phase from the decomposed layer to form a structured layer.
Claims18
A method for producing a superhydrophobic composition comprising a film, the method comprising:
- providing a substrate comprising an inert material;
- depositing a gradient antireflective layer on at least a portion of the substrate;
- decomposing the gradient antireflective layer to form at least a first phase of material and a second phase of material;
- and
- removing at least a portion of the second phase from the decomposed gradient antireflective layer to form a structured gradient antireflective layer, wherein the superhydrophobic composition has an entire thickness that ranges from 2000 nm to 10,000 nm, wherein a surface of the structured gradient antireflective layer comprises spaced apart protrusions and antireflective nanopores having a major diameter of from 1 μm to 750 nm, wherein the protrusions and nanopores of the gradient antireflective layer decrease in size in a direction from a surface of the gradient antireflective layer to the substrate.
A superhydrophobic composition comprising a film, the film comprising:
- a substrate comprising an inert material;
- and
- a gradient antireflective layer adjacent to the substrate, wherein the superhydrophobic composition has an entire thickness that ranges from 2000 nm to 10,000 nm, wherein a surface of the gradient antireflective layer comprises spaced apart protrusions and antireflective nanopores having a major diameter of from 1 μm to 750 nm, wherein the protrusions and nanopores of the gradient antireflective layer decrease in size in a direction from a surface of the gradient antireflective layer to the substrate.
A superhydrophobic composition comprising a film, the film comprising:
- a substrate, the substrate comprising a chemically reactive surface;
- a gradient antireflective layer chemically bonded to the chemically reactive surface of the substrate, wherein the superhydrophobic composition has an entire thickness that ranges from 2000 nm to 10,000 nm;
- wherein a surface of the gradient antireflective layer comprises spaced apart protrusions and antireflective nanopores having a major diameter of from 1 μm to 750 nm, wherein the protrusions and nanopores of the gradient antireflective layer decrease in size in a direction from a surface of the gradient antireflective layer to the substrate;
- a superhydrophobic layer chemically bonded to the surface of the gradient antireflective layer;
- and
- wherein the film is superhydrophobic and transparent.
Dependencies are inferred from the claim text.