Low-viscosity graphene oxide slurry and preparation method thereof, and graphene oxide film and preparation method thereof
US11673808B2 · kind B2 · utility
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Key dates
| Filing date | Aug 17, 2020 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Aug 17, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/32
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Provided are a low-viscosity graphene oxide slurry and a preparation method thereof, a graphene oxide film and a preparation method thereof, and a graphene heat-conducting film and a preparation method thereof. A main method used comprises ultramicro-refining graphene oxide under high-pressure shearing, high-speed impacting and a strong cavitation action to reduce a flake diameter of the graphene oxide, thereby reducing a viscosity of the graphene oxide slurry and increasing a solid content of the graphene oxide slurry, so that an efficiency of coating the graphene oxide slurry into the graphene oxide film is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.