A preparation method of copper foam/carbon fiber composite material coated with composite metal layer

A composite metal layer and composite material technology, applied in metal material coating process, liquid chemical plating, pressure inorganic powder coating, etc. Poor chemical properties, etc., to achieve the effects of controllable pore size design, improved interface wettability, enhanced electrical conductivity and mechanical properties

Active Publication Date: 2019-10-29
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The equipment used for electroplating is relatively complex, expensive, and consumes a lot of energy
Moreover, the waste water and waste gas produced by electroplating are difficult to treat pollutants, which will lead to increased treatment costs.
During the electroplating process, due to improper treatment, the plated metal layer is prone to oxidation or hydrogen embrittlement, resulting in a decline in the overall performance of the composite material
Compared with electroplating, electroless plating has obvious advantages. During the electroless plating process, basically no difficult pollutants will be produced. The plated metal layer is not easy to oxidize, and electroless plating can also be used for various materials and shapes of substrate materials. , the required equipment is simple and the cost is low; but in the electroless plating process, because the carbon material is easy to agglomerate, the carbon material and the base metal copper cannot form a continuous conductive network, resulting in poor electrochemical performance of the composite material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for preparing a composite metal layer-plated foamed copper / carbon fiber composite material of the present invention includes the following steps:

[0041] (1) Add carbon fiber with a length of 0.1μm and a purity of 99% into the acid solution, heat it to reflux in a water bath at 80°C for 2h, and then dilute with deionized water and wash to neutrality. After separation and drying, the acidified The ratio of the mass of carbon fiber to the volume of the acid is 2:100g / mL, and the acid is made by mixing 98% of concentrated sulfuric acid and 65% of concentrated nitric acid in a volume ratio of 3:1;

[0042] (2) Add the acidified carbon fiber to the sensitizer solution and ultrasonically treat it for 30 minutes, then dilute it with deionized water and wash to neutrality, and then separate and dry to obtain the sensitized carbon fiber; the quality of the carbon fiber and the sensitizer solution The volume ratio is 2:100g / mL, the sensitizing solution is 100mL deionized wat...

Embodiment 2

[0051] A method for preparing a composite metal layer-plated foamed copper / carbon fiber composite material of the present invention includes the following steps:

[0052] (1) Add carbon fiber with a length of 0.3μm and a purity of 99% to the acid solution, heat it to reflux for 2h in a water bath at 80°C, and then dilute with deionized water and wash to neutrality. After separation and drying, the acidified The carbon fiber; the ratio of the mass of carbon fiber to the volume of the acid is 3:100g / mL, and the acid is made by mixing 98% of concentrated sulfuric acid and 65% of concentrated nitric acid by volume at a volume ratio of 3:1;

[0053] (2) Add the acidified carbon fiber to the sensitizing solution and ultrasonically treat it for 30 minutes, then dilute it with deionized water and wash it to neutrality. After separation, dry it at 70°C for 24 hours to obtain the sensitized carbon fiber; the quality and sensitivity of carbon fiber The volume ratio of the chemical solution is...

Embodiment 3

[0062] A method for preparing a composite metal layer-plated foamed copper / carbon fiber composite material of the present invention includes the following steps:

[0063] (1) Add carbon fiber with a length of 0.5μm and a purity of 99% to the acid solution, heat it to reflux in a water bath at 80°C for 2h, and then dilute with deionized water and wash to neutrality. After separation and drying, the acidified The ratio of the mass of carbon fiber to the volume of the acid is 2:100g / mL, and the acid is made by mixing 98% of concentrated sulfuric acid and 65% of concentrated nitric acid in a volume ratio of 3:1;

[0064] (2) Add the acidified carbon fiber to the sensitizing solution and ultrasonically treat it for 30 minutes, then dilute it with deionized water and wash it to neutrality. After separation, dry it at 70°C for 24 hours to obtain the sensitized carbon fiber; the quality and sensitivity of carbon fiber The volume ratio of the chemical solution is 4:100g / mL, and the sensitiz...

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Abstract

The invention provides a preparation method of a composite metal layer plating foam copper / carbon fiber composite material. The preparation method of the composite metal layer plating foam copper / carbon fiber composite material comprises the following steps of (1) firstly spraying nickel-plated carbon fiber on the surface of foam copper, and then spraying mixed powder of tungsten oxide and molybdenum oxide; (2) feeding hydrogen peroxide into the foam copper treated in the step (1), and reacting to obtain a precursor of the composite metal layer plating foam copper / carbon fiber composite material; and (3) sintering the precursor obtained through the step (2), and obtaining the composite metal layer plating foam copper / carbon fiber composite material. The preparation method provided by the invention is beneficial to improving the electrical conductivity and the mechanical property of the composite material, has the characteristics of simple and short process, simplicity in operation, andhigh controllability, and is easy to realize continuous and large-scale production.

Description

Technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a preparation method of a composite metal layer-plated foamed copper / carbon fiber composite material. Background technique [0002] With the continuous development of the national economy, people's demand for the transportation industry continues to expand. More and more large cities have begun to build high-speed rails and subways. The demand and performance requirements for pantograph skateboards are getting higher and higher. Copper / carbon composite material has excellent self-lubricating properties and has become a key material in the technical field of preparing pantograph sliding plates, and is widely used in aerospace, electronic information, transportation and other fields. At present, developed countries in Europe and the United States are generally at a leading level in the research and application of copper / carbon composite materials. Therefore, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C47/04C22C49/02C22C49/14C23C24/04C23C26/00C23C18/34C22C101/10
CPCC22C47/04C22C49/02C22C49/14C23C18/1639C23C18/34C23C24/04C23C26/00
Inventor 甘雪萍赵琪周科朝
Owner CENT SOUTH UNIV
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