Fluorine-free superhydrophobic surfaces, methods of making and uses thereof
AssigneeMcMaster University
InventorsTohid F. Didar, Leyla Soleymani, Liane Ladoucheur
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Abstract
This disclosure relates to superhydrophobic materials and/or surfaces comprising a shrinkable polymer substrate and at least one polysiloxane layer, wherein the materials and/or surfaces comprise microscale wrinkles and nanoscale features that form hierarchical structures. Methods of making and uses thereof are also disclosed herein.
Claims29
A material comprising a shrinkable polymer substrate and at least one polysiloxane layer on a surface layer of the substrate, wherein the material comprises microscale wrinkles and nanoscale features that form hierarchical structures on a surface of the material, and wherein the material exhibits superhydrophobic properties.
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A method of preparing a material having a surface with hierarchical structures, the method comprising:
- a) activating a shrinkable polymer substrate by oxidation,
- b) depositing at least one polysiloxane layer on the shrinkable polymer substrate at substantially consistent relative humidity,
- c) treating the substrate under conditions to form microscale wrinkles and nanoscale features to obtain material,
- wherein the material exhibits superhydrophobic properties.
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Dependencies are inferred from the claim text.