Graphene-nonmetal-metal composite material for 3D printing, preparation method and application

A metal composite material, 3D printing technology, applied in the directions of additive manufacturing, additive processing, energy efficiency improvement, etc., can solve the problem that can not fully reflect the performance advantages of graphene materials with high hardness, high strength and high thermal conductivity, and intermolecular chemical bonds. Strong, large metal oxide particles, etc., to achieve the effect of high hardness, high strength, and grain refinement

Active Publication Date: 2017-05-17
尹宗杰 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] The preparation method of the 3D printed graphene-non-metal-metal composite material of this embodiment includes the following steps:

[0024] (1) Under the action of an ultrasonic probe (the frequency of ultrasonic is 10KHz), graphene quantum dots are mixed with zirconia powder and rare earth in a mass ratio of 1:3:6, and the mixture uses polyethylene glycol as a solvent for high-pressure physical grinding shears Cut, the pressure is 120MPa, the time is 12h, the temperature is 2℃, and the composite slurry material is prepared;

[0025] (2) Vacuum drying the prepared composite slurry material at a pressure of 250 Pa, a drying time of 60 minutes, and a drying temperature of 50° C. to obtain a 3D printed graphene-nonmetal-metal composite material.

[0026] 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...

Example Embodiment

[0027] Example 2

[0028] The application method of the 3D printing graphene-non-metal-metal composite material of Example 1 is: after 3D printing the 3D-printed graphene-non-metal-metal composite material, the fiber laser system is used for sintering and quenching. The laser frequency is At 80kHz, the laser power is 190W, the spot diameter is 0.8mm, the scanning speed is 0.9mm / s, and the scanning distance is 0.9mm, to obtain a laser sintered 3D printed product.

Example Embodiment

[0029] Example 3

[0030] The preparation method of the 3D printed graphene-non-metal-metal composite material of this embodiment includes the following steps:

[0031] (1) Under the action of an ultrasonic reactor (the frequency of ultrasonic is 100KHz), graphene microchips, titanium dioxide powder, and polyaniline are mixed in a mass ratio of 1:4:5, and a ball mill pure water is used as a solvent for high-pressure physical grinding and shearing. , The pressure is 50MPa, the time is 1h, and the temperature is 18℃, to prepare the composite slurry material;

[0032] (2) The prepared composite slurry material is dried under normal pressure, the drying time is 60 minutes, and the drying temperature is 90° C., to obtain a 3D printing graphene-nonmetal-metal composite material.

[0033] In other embodiments, polyaniline can also be replaced by one or more of boron nitride, carbon nanotubes, carbon fibers, rare earths, rubber, plastics, polypyrrole, polythiophene, cationic resin, and anioni...

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PUM

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Abstract

The invention relates to a graphene-nonmetal-metal composite material for 3D printing, a preparation method and application. The preparation method comprises the following steps: (1) mixing, grinding and shearing graphene quantum dots and/or graphene micro-sheets, nonmetal simple substances and/or nonmetal compounds, and metal simple substances and/or metal compounds under the effect of ultrasonic waves (the frequency of the ultrasonic waves is 10-100 KHz) to obtain a composite slurry material or a composite powder material, wherein the mass ratio of the graphene quantum dots and/or the graphene micro-sheets, the nonmetal simple substances and/or the nonmetal compounds, and the metal simple substances and/or the metal compounds is 1: (1-45): (1-45); and (2) drying the prepared composite slurry material or powder material. The invention provides the laser sintering graphene-nonmetal-metal composite material for 3D printing and the preparation method of the laser sintering graphene-nonmetal-metal composite material. The composite material has excellent properties of high hardness, high strength, corrosion resistance and easiness in processing and using; after 3D printing is finished, densification of particles of the composite material is promoted by laser sintering and quenching, crystalline grains are refined, and therefore, the mechanical property of 3D printing products is improved.

Description

technical field [0001] The invention relates to the technical field of graphene applications, in particular to a 3D printed graphene-nonmetal-metal 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 ...

Claims

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Application Information

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IPC IPC(8): B22F9/04B22F3/105B33Y10/00B33Y70/00B33Y80/00
CPCB22F9/04B33Y10/00B33Y70/00B33Y80/00B22F10/00B22F10/34B22F10/36B22F10/20Y02P10/25
Inventor 尹宗杰楚双印
Owner 尹宗杰
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