Compact graphene-carbon nanotube composite film and preparation method thereof

CN119637859AActive Publication Date: 2025-03-18SHANGHAI JIAOTONG UNIV +1
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Patent Information

Application Number
CN202411968054.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-03-18
Estimated Expiration
2044-12-30

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Abstract

The invention discloses a compact graphene-carbon nanotube composite film and a preparation method thereof. The preparation method comprises the following steps: S1, mixing a graphene oxide aqueous solution and a carbon nanotube solution, and uniformly dispersing to prepare a graphene oxide-carbon nanotube mixed solution; s2, carrying out suction filtration on the graphene oxide-carbon nanotube mixed solution and carrying out solid-liquid separation; drying the filter membrane coated with the graphene oxide-carbon nanotube composite film, and stripping from the filter membrane to obtain the graphene oxide-carbon nanotube composite film; and S3, carrying out thermal reduction treatment on the graphene oxide-carbon nanotube composite film to obtain the graphene-carbon nanotube composite film. The carbon nanotube network structure in the composite film is uniformly dispersed between adjacent sheet layers of the graphene, plays a role in heat conduction and bridging, and has the potential of improving the longitudinal heat conductivity of the graphene.
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