Self-healing, omniphobic coatings and related methods
AssigneeUniversity of Kansas
InventorsMohammadamin Ezazi, Anjana Maharjan, Gibum Kwon
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Abstract
Self-healable, omniphobic coatings and related methods are provided. In embodiments, a self-healable, omniphobic coating comprises a matrix of crosslinked, entangled hydrogel polymers, the hydrogel polymers comprising hydroxyl (OH) groups, hydroxyl group precursors, or both, and nanoparticles distributed throughout the matrix; and fluorinated silane molecules covalently bound to the matrix.
Claims22
A self-healable, omniphobic coating comprising a matrix of covalently crosslinked, entangled hydrogel polymers, the hydrogel polymers comprising hydroxyl (OH) groups, hydroxyl group precursors, or both, and nanoparticles distributed throughout the matrix;
- and fluorinated silane molecules covalently bound to the matrix, wherein the matrix's covalent crosslinks are derived from crosslinker molecules comprising glyoxal.
A self-healable, omniphobic coating comprising a matrix of covalently crosslinked, entangled hydrogel polymers, the hydrogel polymers comprising hydroxyl (OH) groups, hydroxyl group precursors, or both, and nanoparticles distributed throughout the matrix;
- and fluorinated silane molecules covalently bound to the matrix, wherein the nanoparticles are SiO2 nanoparticles.
A self-healable, omniphobic coating comprising a matrix of covalently crosslinked, entangled hydrogel polymers, the hydrogel polymers comprising hydroxyl (OH) groups, hydroxyl group precursors, or both, and nanoparticles distributed throughout the matrix;
- and fluorinated silane molecules covalently bound to the matrix, wherein the matrix has a water content in a range of from 1% to 10%, wherein the water content is determined from an equation (Mac−Mo)/Mac*100, wherein Mac is the matrix's mass and Mo is the mass of the matrix as dried and water-free.
A self-healable, omniphobic coating comprising a matrix of covalently crosslinked, entangled hydrogel polymers, the hydrogel polymers comprising hydroxyl (OH) groups, hydroxyl group precursors, or both, and nanoparticles distributed throughout the matrix;
- and fluorinated silane molecules covalently bound to the matrix, wherein the hydrogel polymers are present at an amount in a range of from 90 wt % to 98 wt %, the nanoparticles are present at an amount in a range of from 1 wt % to 5 wt %, and the coating exhibits a crosslinking density in a range of from 1 mol/cm3 to 3 mol/cm3.
A self-healable, omniphobic coating comprising a matrix of covalently crosslinked, entangled hydrogel polymers, the hydrogel polymers comprising hydroxyl (OH) groups, hydroxyl group precursors, or both, and nanoparticles distributed throughout the matrix;
- and fluorinated silane molecules covalently bound to the matrix, wherein the matrix has a porosity of not more than 60%.
Dependencies are inferred from the claim text.