Method for manufacturing single walled carbon nanotube surface nickel copper coating

A technology of single-walled carbon nanotubes and nickel-copper, which is applied in coatings, metal material coating processes, liquid chemical plating, etc., can solve the problems of unsatisfactory macroscopic properties, and achieve avoidance of oxidation side reactions, good wettability, The effect of reducing cost and energy consumption

Inactive Publication Date: 2014-02-19
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the key technical problem of unsatisfactory macro performance of the existing carbon nanotube reinforced copper matrix composite material due to interface problems, overcome the shortcomings of the copper coating treatment process on the surface of carbon nanotubes, and provide a practical and effective , a controllable non-oxidation preparation method of copper coating on the surface of single-walled carbon nanotubes, so that the transition layer interface between the single-walled carbon nanotubes and the copper matrix of the composite material has better bonding strength

Method used

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  • Method for manufacturing single walled carbon nanotube surface nickel copper coating
  • Method for manufacturing single walled carbon nanotube surface nickel copper coating
  • Method for manufacturing single walled carbon nanotube surface nickel copper coating

Examples

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Embodiment 1

[0034] (1) The dispersion of single-walled carbon nanotubes is to add deionized water, 0.35w / v % SDBS and 0.025w / v% single-walled carbon nanotubes to a beaker, and use a frequency of 35kHz, A probe-type ultrasonic generator with a power of 60W was used for ultrasonic treatment for 30 minutes, during which time the ultrasound was stopped for 5 seconds every 5 seconds.

[0035] Purification pretreatment of single-walled carbon nanotubes: using 6 mol / L HNO 3 Reflux the above-mentioned fully dispersed single-walled carbon nanotubes at 118°C for 5 hours, cool, filter and wash with deionized water until neutral, then reflux with 6 mol / L NaOH at 118°C for 3 hours, cool, and filter and wash with deionized water to pH 7, then reflux with 6 mol / L HCl at 118°C for 3 hours, cool, filter and wash with deionized water until the pH is 7; the concentration of single-walled carbon nanotubes during purification is 0.035w / v%.

[0036] Sensitization and activation treatment of single-walled carbon...

Embodiment 2

[0041] The difference between this example and Example 1 is that the concentration of SDBS during the dispersion treatment in step (1) is 0.5w / v%, the frequency of the probe type ultrasonic generator is 20 kHz, the power is 60W, and the ultrasonic dispersion treatment time is 20min , during which the ultrasound stops for 3 seconds every 2 seconds. Other steps and parameters are the same as in Example 1.

Embodiment 3

[0043] The difference between this example and Example 1 is: during the purification process in step (1), 6 mol / L HNO 3 The temperature of medium reflux is 120°C, and the reflux time is 4.5h; the temperature of reflux in 6 mol / L NaOH is 116°C, and the reflux time is 1.5h; the temperature of reflux in 6mol / L HCl is 116°C, and the reflux time is 1.5h. Other steps and parameters are the same as in Example 1.

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Abstract

The invention discloses a method for manufacturing a single walled carbon nanotube surface nickel copper coating and belongs to the technical field of carbon nanotube surface processing techniques. The method includes the following steps that a method for combining ultrasonic processing and a chemical dispersing agent is adopted for sequentially carrying out scattering, purifying, sensitization and excitation on a single walled carbon nanotube in advance. Afterwards, by means of a method of chemical plating, a nickel layer and a copper layer are sequentially deposited on the surface of the single walled carbon nanotube. The method for manufacturing the single walled carbon nanotube surface nickel copper layer is practical, effective and controllable. The copper layer obtained on the surface of the carbon nanotube is high in purity, free of oxide and even and complete in coating and capable of being tightly combined with the surface of the carbon nanotube. The good heat conducting performance and the good electricity conducting performance of pure copper are reserved on the coating. Wettability and interface combining strength between the carbon nanotube and a composite copper base body are improved. The application range of the carbon nanotube in fields is widened, wherein the fields include carbon nanotube reinforced metal base composite materials, nanometer electronic appliances, biosensors and the like.

Description

[0001] technical field [0002] The invention relates to a method for preparing a nickel-copper coating on the surface of a single-walled carbon nanotube, and belongs to the technical field of carbon nanotube surface treatment technology. Background technique [0003] Single-walled carbon nanotubes have a nearly perfect bonding structure and various excellent properties, making them an ideal material that can significantly improve the mechanical properties, thermal conductivity and electrical conductivity of the matrix at the same time, and reduce the coefficient of friction and thermal expansion. However, due to poor wettability between the copper metal matrix and carbon nanotubes, poor interfacial bonding strength, physical properties (such as elastic modulus, thermal conductivity, linear expansion coefficient, thermodynamic parameters) and chemical properties of the interface area are discontinuous, resulting in carbon nanotubes Various macroscopic properties of reinforce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00C23C18/18C23C18/36C23C18/40
Inventor 郑重董仕节李四年肖岸纯李连杰
Owner HUBEI UNIV OF TECH
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