Layer casting molded graphene-nonmetal-metal composite material and preparation method

A metal composite material and non-metallic technology, applied in the direction of titanium oxide/hydroxide, titanium dioxide, zirconium oxide, etc., can solve the problems of easy agglomeration, large metal oxide particles, restrictions, etc., and achieve easy processing and use, high resistivity low and high intensity effects

Inactive Publication Date: 2017-05-31
尹宗杰 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent application number: CN201610825355.3 discloses a preparation method of nickel oxide/graphene oxide composite material, which solves the large and uneven particle size of metal oxide particles in the existing preparation of metal oxide/graphene composite materials and the problem of low specific capacitance
[0004] In summary, although graphene and its composite materials and technologies have been applied to many fields, and their performance has been improved and improved, g

Method used

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Effect test

Embodiment 1

[0025] The layer cast graphene-nonmetal-metal composite material of the present embodiment, its preparation method comprises the steps:

[0026] (1) Mix graphene quantum dots, zirconia powder, and rare earth under the action of an ultrasonic probe, and use pure water high-pressure liquid flow method for high-pressure grinding and shearing. The pressure is 220MPa, the time is 35min, and the temperature is 2°C. Composite slurry material;

[0027] (2) Carry out vacuum drying to the composite slurry material that makes, and pressure is 200Pa, and drying time is 60min, obtains anhydrous composite powder material;

[0028] (3) The dried anhydrous composite powder material is quenched and refined by laser treatment to promote molecular rearrangement and graft fusion to obtain a layer-cast graphene-nonmetal-metal composite material.

[0029] In other embodiments, the graphene quantum dots can also be replaced by graphene microplates or a mixture of graphene quantum dots and graphene ...

Embodiment 2

[0031] The layer cast graphene-nonmetal-metal composite material of the present embodiment, its preparation method comprises the steps:

[0032] (1) Under the action of an ultrasonic reactor, the graphene microsheets, titanium dioxide powder and polyaniline are mixed, and the ethanol high-pressure liquid flow method is used for high-pressure grinding and shearing. The pressure is 180MPa, the time is 45min, and the temperature is 18°C. Composite slurry material;

[0033] (2) vacuum drying the prepared composite slurry material, the pressure is 50Pa, and the drying time is 20min to obtain anhydrous composite powder material;

[0034] (3) The dried anhydrous composite powder material is subjected to laser quenching and refining to promote molecular rearrangement and graft fusion to obtain a layer-cast graphene-nonmetal-metal composite material.

[0035] In other embodiments, titanium dioxide powder can also be made of zirconia, molybdenum disulfide, tungsten disulfide, lead oxid...

Embodiment 3

[0037] The layer cast graphene-nonmetal-metal composite material of the present embodiment, its preparation method comprises the steps:

[0038] (1) Under the action of an ultrasonic probe, the graphene microflakes, titanium dioxide powder, and rare earth are mixed, and the physical grinding method is used for high-pressure grinding and shearing, with a pressure of 180 MPa and a time of 45 minutes, to obtain a composite slurry material;

[0039] (2) Drying the prepared composite slurry material under normal pressure, the drying time is 30-300min, to obtain anhydrous composite powder material;

[0040] (3) The dried anhydrous composite powder material is subjected to laser quenching and refining to promote molecular rearrangement and graft fusion to obtain a layer-cast graphene-nonmetal-metal composite material.

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Abstract

The invention relates to a layer casting molded graphene-nonmetal-metal composite material and a preparation method thereof. The preparation method of the layer casting molded graphene-nonmetal-metal composite material comprises the following steps of carrying out mixed grinding and shearing on a graphene quantum dot and/or a microchip and a nonmetal-metal substance under ultrasonic action, drying an obtained mixture, then subjecting the mixture to laser treatment, carrying out quenching and refinement, and promoting molecular rearrangement and grafting fusion. The layer casting molded graphene-nonmetal-metal composite material prepared by the preparation method has advantageous performance of being high in hardness, high in strength and low in electrical resistivity and being easily processed and used, can be widely applied to the field of material processing of tooth implantation, super electric drills and the like, the field of energy storage materials for batteries and super capacitors, the field of catalyst materials, the field of heat radiating materials, the field of medicine, the field of coating materials, the field of electrically conductive ink, the field of photoelectric and sensor materials, the field related to biology, and the like.

Description

technical field [0001] The invention relates to the technical field of graphene application, in particular to a layer-cast graphene-nonmetal-metal composite material and a preparation method thereof. Background technique [0002] Single-layer graphene sheets are composed of a dense layer of carbon six-membered rings without any structural defects. Its thickness is about 0.35nm, which is the thinnest two-dimensional nano-carbon material so far. At the same time, it is also the basic unit of other carbon materials. It can be warped to obtain zero-dimensional fullerene, curled to obtain one-dimensional carbon nanotubes and stacked to obtain three-dimensional graphite. The most basic repeating period unit in graphene is the most stable benzene ring junction groove in organic chemistry, and it is the best two-dimensional nanomaterial so far. Graphene prepared in reality not only exists single-layer, but also multi-layer. Due to its unique structure, various properties of graphe...

Claims

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Application Information

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IPC IPC(8): C01G25/02C01G23/047
CPCC01G25/02C01G23/047C01P2004/80
Inventor 张文娟尹宗杰楚双印李芳
Owner 尹宗杰
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