Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of layer cast graphene-non-metallic composite material and its preparation method

A composite material and non-metallic technology, which is applied in the field of layer casting graphene-non-metallic composite materials and preparation, can solve the problems of easy agglomeration, confinement, high surface activity, etc., and achieve easy processing and use, low resistivity, high The effect of hardness

Active Publication Date: 2019-12-03
GUANGZHOU FENGSHANG ELECTRIC APPLIANCE
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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, graphene with high hardness and high strength has high surface activity energy, intermolecular forces and chemical bonds. The effect is strong and inevitably easy to reunite
Therefore, due to stacking and agglomeration during the preparation of graphene composite materials, the performance advantages of high hardness, high strength and high thermal conductivity of graphene materials cannot be fully reflected. This problem limits its application in a wider and wider range. field application

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The preparation method of the layer-cast graphene-non-metal composite material of this embodiment includes the following steps:

[0025] (1) Under the action of an ultrasonic probe, graphene quantum dots and boron nitride powder are mixed, and the pure water high-pressure liquid flow method is used for high-pressure grinding and shearing. The pressure is 200MPa, the time is 30 minutes, and the temperature is 2°C. Composite slurry material;

[0026] (2) Vacuum drying the prepared composite slurry material at a pressure of 150 Pa and a drying time of 60 minutes to obtain an anhydrous composite powder material;

[0027] (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-casting graphene-non-metal composite material.

[0028] In other embodiments, graphene quantum dots can also be replaced by graphene microplatelets or a mixture of graphene quantum dots and graphene micro...

Embodiment 2

[0030] The preparation method of the layer-cast graphene-non-metal composite material of this embodiment includes the following steps:

[0031] (1) The graphene microchips and carbon fibers are mixed under the action of an ultrasonic reactor, and the composite slurry is prepared by using propanol high-pressure liquid flow method for high-pressure grinding and shearing, the pressure is 200MPa, the time is 30 minutes, and the temperature is 18°C. Body material

[0032] (2) Dry the prepared composite slurry material under normal pressure for a drying time of 10-60 minutes to obtain an anhydrous composite powder material;

[0033] (3) Laser quenching and refining the dried anhydrous composite powder material to promote molecular rearrangement and grafting fusion to obtain a layer-casting graphene-nonmetal composite material.

Embodiment 3

[0035] The preparation method of the layer-cast graphene-non-metal composite material of this embodiment includes the following steps:

[0036] (1) Under the action of an ultrasonic probe, the graphene microchips and the carbon nanotubes are mixed, and a physical grinding method is used for high-pressure grinding and shearing at a pressure of 150 MPa and a time of 45 minutes to prepare a composite slurry material;

[0037] (2) Perform supercritical drying of the prepared composite slurry material with a pressure of 300 Pa and a drying time of 100 minutes to obtain an anhydrous composite powder material;

[0038] (3) Laser quenching and refining the dried anhydrous composite powder material to promote molecular rearrangement and grafting fusion to obtain a layer-casting graphene-nonmetal composite material.

[0039] In other embodiments, the pressure of supercritical drying may be in the range of 10-1000 Pa, and the drying time may be 15-200 min.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
breaking strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a layer cast molding graphene-nonmetallic composite material and a preparation method. The method for preparing the layer cast molding graphene-nonmetallic composite material comprises the following steps: mixing, grinding and shearing graphene quantum dots and / or micro-chips and nonmetallic substances under the ultrasonic action, drying, performing laser treatment, quenching and refining, so that molecular rearrangement and grafting fusion can be promoted. The layer cast molding graphene-nonmetallic composite material prepared by the invention has excellent performances of high hardness, high strength and low electrical resistivity, is easy to produce and can be widely applied to the processing fields of dental implant, super electric drills and other materials, the field of super-capacitor energy storage materials, the field of catalyst materials, the field of heat dissipation materials, the field of medicines, the field of coating materials, the fields of conductive ink and photoelectric sensor materials, the bio-relevant field 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 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 graphene are...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/194C01B33/02C01B35/02C08L101/00C08K3/04C08L79/02C08L21/00C08L65/00C08L79/04
CPCC01B33/02C01B35/023C01P2004/80C08K3/04C08L101/00C08L79/02C08L21/00C08L65/00C08L79/04
Inventor 尹宗杰楚双印张文娟
Owner GUANGZHOU FENGSHANG ELECTRIC APPLIANCE