Cut processing of layered composites by water vapor annealing
AssigneeGeorgia Tech Research Corporation
InventorsRuilong Ma, Vladimirv V. Tsukruk
Life of this patent
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Abstract
In a method for making a flexible material, a sheet of graphene oxide-composite paper is subjected to an environment having a relative humidity above a predetermined threshold for a predetermined amount of time. At least one expansion cut is cut in the sheet of graphene oxide-composite paper. A flexible conductive material includes a sheet of graphene oxide-composite paper defining at least one cut passing therethrough and formed it a kirigami structure. A region of the sheet of graphene oxide-composite paper includes reduced graphene oxide.
Claims20
A method for making a flexible material, comprising the steps of:
- (a) subjecting a sheet of graphene oxide-composite paper that includes silk fibers and a graphene oxide material to an environment having a relative humidity above a predetermined threshold for a predetermined amount of time sufficient to induce water plasticization of the graphene oxide-composite paper to form water plasticized graphene oxide-composite paper;
- and
- (b) after plasticization has occurred and while the graphene oxide-composite paper is water plasticized, then cutting at least one expansion cut in the sheet of water plasticized graphene oxide-composite paper.
A method for making a flexible conductive material, comprising the steps of:
- (a) subjecting a sheet of a composite paper including graphene oxide particles and silk fibers to an environment having a relative humidity above a predetermined threshold for a predetermined amount of time sufficient to induce water plasticization of the graphene oxide-composite paper to form water plasticized graphene oxide-composite paper;
- and
- (b) applying aluminum to a region of the sheet of composite paper so as to increase electrical conductivity of the region of the sheet of composite paper;
- (c) removing the aluminum from the region of the sheet of composite paper so as to expose a region of reduced graphene oxide;
- (d) cutting at least one expansion cut in the sheet of plasticized composite paper while the sheet of plasticized composite paper is water plasticized;
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- (e) manipulating the sheet of composite paper into a kirigami structure.
A method for making a flexible material, comprising the steps of:
- (a) subjecting a sheet of graphene oxide-composite paper that includes silk fibers and a graphene oxide material to an environment having a relative humidity above a predetermined threshold for a predetermined amount of time sufficient to induce water plasticization of the graphene oxide-composite paper to form water plasticized graphene oxide-composite paper;
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- (b) after plasticization has occurred and while the graphene oxide-composite paper is water plasticized, then cutting at least one expansion cut in the sheet of water plasticized graphene oxide-composite paper;
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- (c) generating the graphene oxide-composite paper by performing the steps of:
- generating a slurry of silk fibers in a liquid;
- (ii) adding a predetermined amount of graphene oxide particles to the slurry;
- (iii) removing the liquid from the slurry so as to form the graphene oxide- composite paper.
Dependencies are inferred from the claim text.