Graphene nanosheet/aluminum composite and preparation method thereof

A graphene nanosheet and aluminum composite material technology, which is applied in metal processing equipment, transportation and packaging, etc., can solve the problems of poor reinforcement effect and low plasticity of graphene/aluminum composite materials, and avoid the pollution of aluminum powder. The effect of uniform dispersion and little structural damage
CN110578076AInactive Publication Date: 2019-12-17SHENYANG AEROSPACE UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENYANG AEROSPACE UNIVERSITY
Publication Date
2019-12-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a graphene nanosheet / aluminum composite and a preparation method thereof. The preparation method comprises the following main steps that (1) a graphene nanosheet is dispersedinto an absolute ethyl alcohol solution, and an absolute ethyl alcohol dispersion solution of the graphene nanosheet is prepared; (2) under argon shielding, spherical aluminum powder is converted intosheet aluminum powder through ball grinding; (3) in an argon inflated glove box, the sheet aluminum powder is moved into the absolute ethyl alcohol dispersion solution of the graphene nanosheet, andcomposite slurry of graphene nanosheet / sheet aluminum powder is prepared through mechanical stirring; (4) graphene nanosheet / sheet aluminum powder composite powder is prepared through suction filtration and drying; (5) a graphene nanosheet / aluminum composite blank is prepared through cold pressing and vacuum sintering; and (6) the graphene nanosheet / aluminum composite is prepared through hot extrusion. The preparation process has the advantages that structure damage of the graphene nanosheet is small, dispersion is uniform, and graphene nanosheet-Al interface bonding is good; and the preparedgraphene nanosheet / aluminum composite is high in strength and good in plasticity.
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Description

technical field

[0001] The invention relates to the technical field of graphene composite materials, in particular to a graphene nanosheet / aluminum composite material and a preparation method thereof. Background technique

[0002] Graphene is a carbon atom with sp 2 The hexagonal structure composed of hybrid orbitals is a two-dimensional material with a thickness of only one carbon atom, and has a large specific surface area (2630m 2 / g), extremely high Young's modulus (1TPa) and breaking strength (125GPa), ultra-high thermal conductivity (5000W.m -1 K -1 ) and electron mobility (200000cm 2 v -1 the s -1 ), since its inception, it has attracted extensive attention in the fields of electronic technology, new energy materials and composite materials. Adding a small amount of graphene to the metal matrix is ​​expected to prepare new metal matrix composites with good processability and excellent comprehensive properties. Therefore, graphene-enhanced metal matrix composites...

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
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