Functional surfaces and methods of making thereof
AssigneeOhio State Innovation Foundation
InventorsPhilip Simon Brown, Bharat Bhushan
Life of this patent
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Abstract
Methods of making functional surfaces, including liquid repellant surfaces that can exhibit selective wetting properties. Methods of forming the functional surfaces can comprise providing a dispersion of nanoparticles; and applying the dispersion to a polymer surface to form a multiplicity of re-entrant structures embedded within and protruding from the polymer surface. The re-entrant structures are formed from aggregates of the nanoparticles. Functional surfaces are prepared by these methods, as well as articles comprising these functional surfaces.
Claims17
A method of forming a functional surface, the method comprising:
- providing a dispersion comprising nanoparticles dispersed in a solvent;
- and
- applying the dispersion to a polymer surface to induce a structural change in the polymer and form a multiplicity of re-entrant structures embedded within and protruding from the polymer surface,
- wherein the re-entrant structures are formed from aggregates of the nanoparticles and comprise a horizontal overhang parallel to the polymer surface, and
- wherein the structural change in the polymer comprises crystals formed from solvent induced crystallization of the polymer at the nanoparticle aggregate.
A method of forming a functional surface, the method comprising:
- providing a dispersion comprising nanoparticles dispersed in a solvent,
- wherein the nanoparticles have a monodispersed distribution of particle size;
- and
- applying the dispersion to a polymer surface to induce a structural change in the polymer and form a multiplicity of re-entrant structures embedded within and protruding from the polymer surface,
- wherein the re-entrant structures are formed from aggregates of the nanoparticles and comprise a horizontal overhang parallel to the polymer surface;
- and
- wherein the structural change in the polymer comprises crystals formed from solvent induced crystallization of the polymer at the nanoparticle aggregate.
Dependencies are inferred from the claim text.