A kind of carbon nanotube reinforced multilayer aluminum matrix composite material and its preparation method and application

A technology of aluminum-based composite materials and carbon nanotube layers, which is applied in the direction of carbon-silicon compound conductors, equipment for manufacturing conductive/semiconductive layers, cable/conductor manufacturing, etc., can solve problems such as difficulty in achieving uniform powder formation, Achieve the effects of improving mechanical properties and electrical conductivity, improving microscopic texture, and excellent electrical conductivity

Active Publication Date: 2020-08-18
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the inventors believe that this method is difficult to achieve uniform powder forming in the rolling process, leaving a large number of voids

Method used

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  • A kind of carbon nanotube reinforced multilayer aluminum matrix composite material and its preparation method and application
  • A kind of carbon nanotube reinforced multilayer aluminum matrix composite material and its preparation method and application
  • A kind of carbon nanotube reinforced multilayer aluminum matrix composite material and its preparation method and application

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Embodiment 1

[0047] A method for preparing a carbon nanotube-reinforced multilayer aluminum-based composite material. In this embodiment, a non-porous aluminum substrate (6063 aluminum alloy) is used as the aluminum substrate, comprising the following steps:

[0048] (1) Soak the 6063 aluminum alloy plate with length, width and thickness of 60, 30 and 0.1mm in 50g / ml sodium hydroxide solution for 5min, rinse with 68% nitric acid after taking it out, and finally Rinse with deionized water and dry;

[0049] (2) The 6063 aluminum alloy plate obtained in step (1) is polished with 2000# sandpaper, then rinsed with deionized water and dried, and set aside;

[0050] (3) Put 0.05g of carbon nanotubes (30 μm in length and 20 nm in diameter) in a mixed acid prepared by concentrated sulfuric acid and concentrated nitric acid with a volume ratio of 2:1 for acidification treatment for 6 hours, then dilute to neutral, and Carry out centrifugation treatment, obtain the carbon nanotube of acidification t...

Embodiment 2

[0057] A method for preparing a carbon nanotube-reinforced multilayer aluminum-based composite material. In this embodiment, a non-porous aluminum substrate (6063 aluminum alloy) is used as the aluminum substrate, comprising the following steps:

[0058] (1) Soak the 6063 aluminum alloy plates with length, width and thickness of 60, 30 and 2 mm in 50 g / ml sodium hydroxide solution for 5 minutes, rinse with 68% nitric acid after removal, and finally remove After washing with ionized water, dry;

[0059] (2) The 6063 aluminum alloy plate obtained in step (1) is polished with 2000# sandpaper, then rinsed with deionized water and dried, and set aside;

[0060] (3) Put 0.05g of carbon nanotubes (10 μm in length and 8 nm in diameter) in a mixed acid prepared by concentrated sulfuric acid and concentrated nitric acid with a volume ratio of 1:1 for acidification treatment for 10 h, then dilute to neutral, and Carry out centrifugation treatment, obtain the carbon nanotube of acidifica...

Embodiment 3

[0067] A method for preparing a carbon nanotube-reinforced multilayer aluminum-based composite material. In this embodiment, a non-porous aluminum substrate (6063 aluminum alloy) is used as the aluminum substrate, comprising the following steps:

[0068] (1) Soak the 6063 aluminum alloy plate with length, width and thickness of 60, 30 and 1mm in 50g / ml sodium hydroxide solution for 5min, rinse with 68% nitric acid after taking it out, and finally remove After washing with ionized water, dry;

[0069] (2) The 6063 aluminum alloy plate obtained in step (1) is polished with 2000# sandpaper, then rinsed with deionized water and dried, and set aside;

[0070] (3) Put 0.05g of carbon nanotubes (25 μm in length and 50 nm in diameter) in a mixed acid prepared by concentrated sulfuric acid and concentrated nitric acid with a volume ratio of 4:1 for acidification treatment for 2 hours, then dilute to neutral, and Carry out centrifugation treatment, obtain the carbon nanotube of acidifi...

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Abstract

The invention relates to the technical field of aluminum-based composite materials, in particular to a carbon nanotube reinforced multilayer aluminum-based composite material as well as a preparationmethod and application thereof. The method comprises the following steps: 1) treating the surface of an aluminum substrate with alkaline liquor and acid liquor, cleaning, drying and then performing grinding pretreatment on the surface of the aluminum substrate; 2) acidifying a carbon nanotube with mixed acid, and then preparing the acidified carbon nanotube into a carbon nanotube suspension; 3) placing the carbon nanotube suspension prepared in the step 2) on the surface of the aluminum substrate ground in the step 1), and drying to obtain a carbon nanotube / aluminum single-layer composite plate; 4) piling the composite plate obtained in the step 3) alternatively, performing prepressing forming, and then performing vacuum sintering; and 5) rolling the product obtained after vacuum sinteringin the step 4) to obtain the carbon nanotube reinforced multilayer aluminum-based composite material. The carbon nanotube is taken as a reinforced layer among multiple layers of aluminum substrates,so that the mechanical property and conductivity of the multilayer aluminum-based composite material can be enhanced effectively.

Description

technical field [0001] The invention relates to the technical field of aluminum-based composite materials, in particular to a carbon nanotube-reinforced multilayer aluminum-based composite material and its preparation method and application. Background technique [0002] In the Background of the Invention, the disclosed information is only intended to increase the understanding of the general background of the present invention, and is not necessarily to be regarded as an acknowledgment or in any form to imply that the information constitutes the prior art already known to those skilled in the art. [0003] With the improvement of environmental protection and energy saving and emission reduction requirements, more and more countries regard lightweight as an important development direction and goal. Aluminum and aluminum alloys have the advantages of low density, high specific strength and specific stiffness, excellent corrosion resistance and good processing performance. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B5/00H01B1/02H01B1/04H01B13/00
CPCH01B1/02H01B1/04H01B5/00H01B5/002H01B13/00H01B13/0016H01B13/0026
Inventor 陈良唐建伟李志刚赵国群张存生
Owner SHANDONG UNIV
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