Composite graphene oxide-polymer laminate and method
AssigneeNorthwestern University
InventorsOwen C. Compton, Karl W. Putz, L. Catherine Brinson, SonBinh T. Nguyen
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Abstract
A macroscale, self-supporting, composite laminate sheet includes individual, layered graphene oxide sheets and a polymer in spaces between the sheets. This composite product can be fabricated by combining a suspension of individual graphene oxide sheets and a solution of polymer, passing the resulting fluid through a fluid-permeable support, and assembling the graphene oxide sheets and polymer as a laminate sheet by flow-directed assembly. The laminate is dried and released from the membrane filter as a self-supporting thin films.
Claims15
A method of making a graphene oxide composite sheet laminate paper, said method comprising:
- (a) forming a mixture comprising individual graphene oxide sheets, a polymer and a solvent;
- (b) depositing said mixture to a top surface of a filtration membrane;
- and
- (c) forming said graphene oxide composite sheet laminate paper on said top surface of said filtration membrane by applying a vacuum to a bottom surface of said filtration membrane,
- wherein said graphene oxide composite sheet laminate paper comprises an ordered nanocomposite having individual graphene oxide sheets layered on top of one another and the polymer between at least some of the individual graphene oxide sheets said ordered nanocomposite having a periodicity pattern of the polymer between at least some of the individual graphene oxide sheets.
Dependencies are inferred from the claim text.