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Graphene oxide/copper oxide composite powder, preparation method thereof and microcosmic laminated structure graphene/copper composite material preparation method

A composite powder and copper oxide technology, applied in the field of powder metallurgy, can solve problems such as complex process, difficulty in large-scale actual production, and difficulty in obtaining composite material blocks, and achieve simple equipment and operation, easy mass production, high intensity effect

Active Publication Date: 2018-07-10
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The composite material prepared by this method has extremely high compressive strength, but due to the complexity of the process, it is difficult to obtain a large composite material block, so it is difficult to apply to large-scale practical production

Method used

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  • Graphene oxide/copper oxide composite powder, preparation method thereof and microcosmic laminated structure graphene/copper composite material preparation method
  • Graphene oxide/copper oxide composite powder, preparation method thereof and microcosmic laminated structure graphene/copper composite material preparation method
  • Graphene oxide/copper oxide composite powder, preparation method thereof and microcosmic laminated structure graphene/copper composite material preparation method

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specific Embodiment approach 1

[0037] Embodiment 1: The graphene oxide / copper oxide composite powder of this embodiment is carried out according to the following steps: copper acetate is dissolved in deionized water to obtain a copper salt solution with a concentration of 0.29mol / L, and the copper salt The solution and the graphene oxide solution with a concentration of 1mg / ml were mixed according to the mass ratio of graphene oxide and copper in the copper salt of 0.0066:100 and stirred for 30min; The sodium solution was adjusted to a pH value of 13.6, washed with deionized water until neutral, and dried at 110° C. to obtain a graphene oxide / copper oxide composite powder (microscopic layered structure).

[0038] The method for preparing a microscopic layered structure graphene / copper composite material using the graphene oxide / copper oxide composite powder obtained in this embodiment is completed by the following steps:

[0039] Step 1. The graphene oxide / copper oxide composite powder is subjected to reduc...

specific Embodiment approach 2

[0045] Specific embodiment two: the graphene oxide / copper oxide composite powder of the present embodiment is carried out according to the following steps: copper acetate is dissolved in deionized water to obtain a copper salt solution with a concentration of 0.28mol / L, and the copper salt The solution and the graphene oxide solution with a concentration of 1mg / ml were mixed according to the mass ratio of graphene oxide and copper in the copper salt of 0.0136:100 and stirred for 30min; The sodium solution was adjusted to a pH value of 13.6, washed with deionized water until neutral, and dried at 110° C. to obtain a graphene oxide / copper oxide composite powder (microscopic layered structure).

[0046] The method for preparing a microscopic layered structure graphene / copper composite material using the graphene oxide / copper oxide composite powder obtained in this embodiment is completed by the following steps:

[0047] Step 1. The graphene oxide / copper oxide composite powder is ...

specific Embodiment approach 3

[0049] Specific embodiment three: the graphene oxide / copper oxide composite powder of the present embodiment is carried out according to the following steps: copper acetate is dissolved in deionized water to obtain a copper salt solution with a concentration of 0.29mol / L, and the copper salt The solution and the graphene oxide solution with a concentration of 1mg / ml were mixed according to the mass ratio of graphene oxide and copper in the copper salt of 0.0066:100 and stirred for 30min; The sodium solution was adjusted to a pH value of 13.6, washed with deionized water until neutral, and dried at 110° C. to obtain a graphene oxide / copper oxide composite powder (microscopic layered structure).

[0050] The method for preparing a microscopic layered structure graphene / copper composite material using the graphene oxide / copper oxide composite powder obtained in this embodiment is completed by the following steps:

[0051] Step 1. The graphene oxide / copper oxide composite powder i...

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Abstract

The invention provides graphene oxide / copper oxide composite powder, a preparation method thereof and a microcosmic laminated structure graphene / copper composite material preparation method, and belongs to the field of powder metallurgy. The purpose of the method is to solve the technical problem that the tensile strength of a composite material is not ideal due to difficulty in compounding graphene with metallic copper. The method comprises the steps that firstly graphene oxide is mixed with copper salt, parameters such as reaction temperature, pH values and the like are controlled, copper hydroxide is separated on the surfaces of graphene oxide sheets, and nanorods can not only fall on the surfaces of the graphene oxide sheets to form good bonding, but also facilitate occurrence of self-assembly among the sheets, thereby forming the composite powder with a laminated structure. The graphene / copper-based composite material with the microcosmic laminated structure can be obtained through subsequent reduction and sintering. The method has the advantages of low raw material cost, simple equipment and operation and easy mass production implementation, and the composite material has theadvantages of high strength and good electrical conductivity and thermal conductivity.

Description

technical field [0001] The invention belongs to the field of powder metallurgy; in particular, it relates to a graphene oxide / copper oxide composite powder and a preparation method thereof, and a preparation method of a microscopic layered structure graphene / copper composite material. Background technique [0002] Copper and copper alloys have good mechanical properties, excellent process performance, easy casting, plastic processing, etc., and more importantly, copper and copper alloys have good corrosion resistance, thermal conductivity, and electrical conductivity, so they can be widely used in electronics, electrical, Machinery manufacturing and other industrial fields. However, the deficiency of copper in many aspects such as room temperature strength, high temperature performance and wear resistance limits its wider application. With the rapid development of modern aerospace and electronic technology, more and higher requirements are put forward for the use of copper,...

Claims

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Application Information

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IPC IPC(8): C01B32/198C22C1/05C22C9/00
CPCB22F3/001B22F2998/10B22F2999/00C22C1/05C22C9/00B22F2201/013B22F2003/1051B22F3/14B22F2003/185
Inventor 王黎东费维栋杨子玥
Owner HARBIN INST OF TECH
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