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A kind of one-step activation method prepares the method for electroless iron-plated graphene

An iron graphene and chemical plating technology, applied in liquid chemical plating, metal material coating process, coating and other directions, can solve the problem of graphene being difficult to disperse evenly, and achieve the solution of difficulty in uniform dispersion, simplify the process flow, enhance the The effect of tensile strength

Active Publication Date: 2019-08-27
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Aiming at the existing technical problems, the present invention provides a method for preparing electroless iron-coated graphene by a one-step activation method, which improves the wettability between graphene and the metal matrix, and solves the problem that graphene is difficult to disperse uniformly in the metal matrix. The problem

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  • A kind of one-step activation method prepares the method for electroless iron-plated graphene
  • A kind of one-step activation method prepares the method for electroless iron-plated graphene
  • A kind of one-step activation method prepares the method for electroless iron-plated graphene

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Effect test

Embodiment 1

[0057] S1. Using the improved Hummers method: 1 g of natural graphite was placed in a beaker, mechanically stirred under an ice bath at 0° C., and 21 ml of concentrated sulfuric acid and 0.5 g of sodium nitrate were sequentially added to the beaker to obtain the first solution.

[0058]S2. Under mechanical stirring, slowly add 3 g of potassium permanganate to the first solution to obtain a second solution, and control the temperature of the second solution to 20° C. and keep it for 30 minutes.

[0059] S3. Raise the temperature of the second solution to 35°C and keep it for 60 minutes, then add 46ml of deionized water to the second solution, adjust the temperature of the second solution to not exceed 80°C, keep it for 15 minutes, then add 140ml of deionized water, 10ml volume fraction is 30% hydrogen peroxide, washed with 5% hydrochloric acid until the solution does not contain SO 4 2- ions, the solution was ultrasonically dispersed for 2 hours, filtered and washed twice, and...

Embodiment 2

[0066] S1. Using the improved Hummers method: 1 g of natural graphite was placed in a beaker, mechanically stirred under an ice bath at 0° C., and 21 ml of concentrated sulfuric acid and 0.8 g of sodium nitrate were sequentially added to the beaker to obtain the first solution.

[0067] S2. Under mechanical stirring, slowly add 4 g of potassium permanganate to the first solution to obtain a second solution, and control the temperature of the second solution to 20° C. and keep it for 30 minutes.

[0068] S3. Raise the temperature of the second solution to 35°C and keep it for 60 minutes, then add 50ml of deionized water to the second solution, adjust the temperature of the second solution to not exceed 80°C, keep it for 15 minutes, then add 150ml of deionized water, 10ml volume fraction is 30% hydrogen peroxide, washed with 5% hydrochloric acid until the solution does not contain SO 4 2- ions, the solution was ultrasonically dispersed for 2 hours, filtered and washed twice, an...

Embodiment 3

[0074] S1. Using the improved Hummers method: 1 g of natural graphite was placed in a beaker, mechanically stirred under an ice bath at 0° C., and 21 ml of concentrated sulfuric acid and 0.5 g of sodium nitrate were sequentially added to the beaker to obtain the first solution.

[0075] S2. Under mechanical stirring, slowly add 3 g of potassium permanganate to the first solution to obtain a second solution, and control the temperature of the second solution to 20° C. and keep it for 30 minutes.

[0076] S3. Raise the temperature of the second solution to 35°C and keep it for 60 minutes, then add 46ml of deionized water to the second solution, adjust the temperature of the second solution to not exceed 80°C, keep it for 15 minutes, then add 140ml of deionized water, 10ml volume fraction is 30% hydrogen peroxide, washed with 5% hydrochloric acid until the solution does not contain SO 4 2- ions, the solution was ultrasonically dispersed for 2 hours, filtered and washed twice, an...

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Abstract

The invention belongs to the technical field of preparing metal matrix composite material reinforcements, and particularly relates to a method for preparing electroless iron-plated graphene by a one-step activation method. In this method, graphene oxide is placed in an activation solution and homogenized, the filtrate is filtered and retained, and washed until neutral to obtain activated graphene oxide; the activation solution is a precious metal salt complex solution; The activated graphene oxide is ultrasonically dispersed, and then added to an electroless iron plating liquid to mix and react to obtain electroless iron plating graphene. The method of the invention improves the wettability between graphene and the metal matrix, and solves the problem of difficulty in uniform dispersion of graphene in the metal matrix. At the same time, the one-step activation process is adopted to simplify the process and significantly reduce production costs.

Description

technical field [0001] The invention belongs to the technical field of preparing metal-matrix composite material reinforcements, and in particular relates to a method for preparing electroless iron-plated graphene by a one-step activation method. Background technique [0002] Compared with traditional matrix alloys, metal matrix composites have high specific strength, specific modulus, excellent high-temperature mechanical properties, wear resistance, and low thermal expansion coefficient. They have very broad applications in aviation, aerospace, automotive, electronics, and transportation industries. Application prospects. [0003] According to different reinforcements, metal matrix composites can be divided into fiber reinforced metal matrix composites, particle reinforced metal matrix composites and whisker reinforced metal matrix composites. [0004] Graphene is the strongest substance known to man, harder than diamond, 100 times stronger than the best steel in the worl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/52C23C18/18
Inventor 李斌川刘奎仁王春新韩庆陈建设曲晨池
Owner NORTHEASTERN UNIV LIAONING
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