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Preparation method of novel graphene aluminum composite material and graphene aluminum composite material

A technology of aluminum composite materials and graphene, which is applied in the field of materials, can solve the problems of graphene being difficult and dispersed

Inactive Publication Date: 2020-05-05
新疆烯金石墨烯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a new graphene-aluminum composite material preparation method and a graphene-aluminum composite material for the technical problem that graphene is not easy to disperse in the aluminum matrix.

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  • Preparation method of novel graphene aluminum composite material and graphene aluminum composite material
  • Preparation method of novel graphene aluminum composite material and graphene aluminum composite material
  • Preparation method of novel graphene aluminum composite material and graphene aluminum composite material

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preparation example Construction

[0028] see figure 1 , the embodiment of the present application provides a preparation method of a novel graphene-aluminum composite material, comprising:

[0029] S100, using a magnetron sputtering method to form an aluminum film 140 on the graphene powder 120 to obtain a modified graphene powder 100;

[0030] S200, adding the modified graphene powder 100 into the molten aluminum liquid 200 and stirring, so that the modified graphene powder 100 is uniformly dispersed in the aluminum liquid 200 to obtain a mixed system; and

[0031] S300, heating and curing the mixed system.

[0032] In the embodiment of the present invention, the modified graphene powder 100 is obtained by first forming an aluminum film 140 on the graphene powder 120, and then the modified graphene powder 100 is mixed with molten aluminum liquid 200 to prepare graphene aluminum composite material. By forming the aluminum film 140 on the surface of the graphene powder 120, it is beneficial to the dispersion...

Embodiment 1

[0050] 1g graphene powder 120 is placed in such as image 3 As shown on the surface of the sample platform 340 of the working chamber of the magnetron sputtering apparatus, the air pressure in the working chamber is evacuated to below 4Pa by vacuuming. The plasma current was modulated to 5mA, and the time was modulated to 2min, and the aluminum sputtering target 320 was arranged horizontally opposite to the two sides of the sample platform 340 . The graphene powder 120 has a sheet diameter of 1 μm and a thickness of 1 nm.

[0051] The modified graphene powder 100 obtained with the aluminum-coated film 140 is collected, and the thickness of the obtained aluminum film 140 of the modified graphene split is about 2 μm.

[0052] After the aluminum material is melted into molten aluminum liquid 200, the obtained modified graphene powder 100 is put into the aluminum liquid 200 in a manner similar to an intermediate alloy, and stirred at 180 rpm for 30 minutes to assist the modificat...

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Abstract

The invention discloses a preparation method of a novel graphene aluminum composite material. The preparation method comprises the following steps of forming an aluminum film on graphene powder by a magnetron sputtering method to obtain modified graphene powder; adding the modified graphene powder into molten aluminum, and stirring, so that the modified graphene powder is uniformly dispersed in the molten aluminum to obtain a mixed system; and curing and molding the mixed system. The invention discloses a graphene aluminum composite material.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a preparation method of a novel graphene-aluminum composite material and the graphene-aluminum composite material. Background technique [0002] Aluminum and aluminum alloys have high specific strength and are widely used in various aspects of social life. Graphene is a two-dimensional nanomaterial composed of carbon atoms in a single-layer sheet structure (thickness is only a few nanometers). Due to its unique two-dimensional honeycomb crystal structure and extremely high bond strength, it is the highest specific strength and hardest nanomaterial known in the world. Its fracture strength is as high as 130Gpa. Based on the excellent characteristics of graphene, it is used in Preparation of graphene-metal composites. [0003] The poor wettability between graphene and aluminum matrix makes it difficult for graphene to play a sufficient role in the aluminum matrix, and may affec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/10C22C21/00C23C14/18C23C14/35
CPCC22C1/101C22C1/1036C22C21/00C23C14/185C23C14/223C23C14/352
Inventor 陈长科卢科伟李辰鹏王成军
Owner 新疆烯金石墨烯科技有限公司
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