3D printing graphene-nonmetal composite material, preparation method and application

A composite material and 3D printing technology, which is applied in the manufacture of hybrid/electric double layer capacitors, electrical components, battery electrodes, etc. Strong chemical bonds, high surface activity, etc., to achieve the effect of refining grains, easy processing and use, and promoting densification

Inactive Publication Date: 2017-05-31
尹宗杰 +1
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  • 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 eas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example 1

[0022] The preparation method of the 3D printed graphene-non-metal composite material of this embodiment includes the following steps:

[0023] (1) Under the action of an ultrasonic probe (the frequency of ultrasonic is 10KHz), graphene quantum dots and nano boron nitride powder are mixed in a mass ratio of 1:8, and the mixture is subjected to high-pressure physical grinding and shearing with polyethylene glycol as a solvent. The pressure is 12MPa, the time is 12h, and the temperature is 2°C to prepare a composite slurry material;

[0024] (2) Vacuum drying the prepared composite slurry material at a pressure of 150 Pa, a drying time of 200 min, and a drying temperature of 80° C. to obtain a 3D printed graphene-nonmetal composite material.

[0025] In other embodiments, graphene quantum dots can also be replaced by graphene microplatelets or a mixture of graphene quantum dots and graphene microplatelets; the vacuum drying pressure can be in the range of 150-1000 Pa,...

Example Embodiment

[0026] Example 2

[0027] The application method of the 3D printing graphene-non-metal composite material of Example 1 is: after 3D printing the 3D printing graphene-non-metal composite material, the fiber laser system is used for sintering and quenching, the laser frequency is 80kHz, and the laser power The laser sintered 3D printed product is 190W, the spot diameter is 0.2mm, the scanning speed is 0.5mm / s, and the scanning distance is 0.8mm.

Example Embodiment

[0028] Example 3

[0029] The preparation method of the 3D printed graphene-non-metal composite material of this embodiment includes the following steps:

[0030] (1) Under the action of an ultrasonic reactor (the frequency of ultrasonic is 100KHz), the graphene microchips and the carbon fiber are mixed at a mass ratio of 1:15, and the ball mill pure water is used as the solvent for high-pressure physical grinding and shearing, the pressure is 150MPa, and the time 12h, the temperature is 18℃, the composite slurry material is prepared;

[0031] (2) The prepared composite slurry material is dried under normal pressure, the drying time is 100 minutes, and the drying temperature is 50° C., to obtain a 3D printed graphene-non-metal composite material.

[0032] In other embodiments, the drying time of atmospheric drying may be 100-500 min, and the drying temperature may be in the range of 50-120°C.

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PUM

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Abstract

The invention relates to a 3D printing graphene-nonmetal composite material, a preparation method and application. The preparation method comprises the following steps: (1) mixing, grinding and shearing graphene quantum dots and/or graphene microchips and a nonmetal elementary substance and/or nonmetal compound to prepare a composite pulp material or composite powder material, wherein the ultrasonic frequency is 10 to 100 KHz, and the weight percent of the graphene quantum dots and/or graphene microchips is 0.01 to 30 percent; and (2) drying the prepared composite pulp material or powder material. The laser sintered graphene-nonmetal composite material and a preparation method thereof are provided for 3D printing. The composite material has excellent properties of high hardness, high strength, corrosion resistance and easiness in processing and use; and after the 3D printing, the composite can be sintered and quenched by virtue of laser to promote the compactness of particles of the composite material and to refine crystal particles, so that the mechanical properties of a 3D printing product can be improved.

Description

technical field [0001] The invention relates to the technical field of graphene application, in particular to a 3D printed graphene-nonmetal composite material, a preparation method and an application. 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 grap...

Claims

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Application Information

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IPC IPC(8): H01G11/86H01M4/36
CPCH01G11/86H01M4/364Y02E60/10
Inventor 尹宗杰楚双印
Owner 尹宗杰
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