Composite graphene structures
AssigneeGarmor Inc.
InventorsJeff Bullington, Richard A. Stoltz
Life of this patent
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Abstract
Graphene has been used in nanocomposites as constituents/doping in plastics or epoxy providing dramatic enhancement of the mechanical properties but have not progressed past the laboratory level novelty. This invention can provide a graphene based composite structure with a density less that 1.9 g/cm3 for a fiber, yarn, rope or cable and a density less that 1.5 g/cm3 for a sheet both structure have tensile and shear strength greater than either Aluminum or Steel; thus providing a graphene material that is both much lighter and stronger.
Claims12
A high-strength composite fiber comprising:
- flat graphene flakes, each graphene flake comprising a plurality of graphene sheets stacked together, disposed on an electroplated metal layer formed on a substrate;
- and
- a polymer chemically bonded at least one of in, about, or to the graphene flakes;
- wherein the composite is formed into the fiber, or a yarn, a rope, or a cable that comprises a density less than 1.9 g/cm3.
A high-strength composite fiber comprising:
- flat graphene flakes, each graphene flake comprising a plurality of graphene sheets stacked together, disposed on an electroplated layer formed on a substrate;
- and
- a polymer chemically bonded at least one of in, about, or to the graphene flakes;
- wherein the composite fiber is formed into a sheet or layer having a density less than 1.5 g/cm3.
Dependencies are inferred from the claim text.