Preparation method of nickel-coated carbon nanotube composite material

A technology of carbon nanotubes and composite materials, applied in metal material coating process, transportation and packaging, liquid chemical plating, etc., can solve the problems of difficult control of coating uniformity and thickness, high preparation cost, etc., so as to facilitate the organization of procurement and production , low porosity, good continuity

Active Publication Date: 2018-09-18
江苏博霖环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a nickel-coated carbon nanotube composite material for the current existing process of preparing nickel-coated carbon nanotube composite materials by surface electroless plating, which has problems such as high preparation cost and difficulty in controlling the uniformity and thickness of the coating layer. Preparation method of coated carbon nanotube composite material

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  • Preparation method of nickel-coated carbon nanotube composite material

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A preparation method of nickel-coated carbon nanotube composite material, consisting of the following steps in turn:

[0027] (1) Weigh an appropriate amount of carbon nanotubes and place them in an agate mortar grinder for 1 hour, transfer them to a glass container, add concentrated nitric acid solution with a mass fraction of 69% to immerse the carbon nanotubes, and stir at room temperature for 24 hours. After filtration, rinse with distilled water until neutral, then transfer the carbon nanotubes into a plastic container, add hydrofluoric acid solution with a mass fraction of 40%, stir at room temperature for 6 hours, filter, rinse with distilled water until neutral, and store at 70°C drying;

[0028] (2) Add a sensitizing solution 70 times the mass of carbon nanotubes to the carbon nanotubes treated in step (1) for sensitization treatment. During the sensitization process, first turn on the ultrasonic oscillator for 5 minutes, and then turn on the magnetic stirrer f...

Embodiment 2

[0035] A kind of preparation method of nickel-coated carbon nanotube composite material of the present invention, consists of following steps successively:

[0036] (1) Weigh an appropriate amount of carbon nanotubes and place them in an agate mortar grinder for 1.5 hours, transfer them to a glass container, add concentrated nitric acid solution with a mass fraction of 69% to immerse the carbon nanotubes, and stir at room temperature for 20 hours. After filtration, rinse with distilled water until neutral, then transfer the carbon nanotubes into a plastic container, add hydrofluoric acid solution with a mass fraction of 30%, stir at room temperature for 12 hours, filter, rinse with distilled water until neutral, and store at 65°C drying;

[0037] (2) Add a sensitizing solution 100 times the mass of carbon nanotubes to the carbon nanotubes treated in step (1) for sensitization treatment. During the sensitization process, first turn on the ultrasonic oscillator for 8 minutes, an...

Embodiment 3

[0043] A kind of preparation method of nickel-coated carbon nanotube composite material of the present invention, consists of following steps successively:

[0044] (1) Weigh an appropriate amount of carbon nanotubes and place them in an agate mortar grinder for 0.5 hours, transfer them to a glass container, add concentrated nitric acid solution with a mass fraction of 69% to immerse the carbon nanotubes, and stir at room temperature for 12 hours. After filtration, rinse with distilled water until neutral, then transfer the carbon nanotubes into a plastic container, add hydrofluoric acid solution with a mass fraction of 35%, stir at room temperature for 10 hours, filter, rinse with distilled water until neutral, and store at 75°C drying;

[0045] (2) Add a sensitizing solution 40 times the mass of carbon nanotubes to the carbon nanotubes treated in step (1) for sensitization treatment. During the sensitization process, first turn on the ultrasonic oscillator for 10 minutes, an...

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Abstract

The invention relates to a preparation method of a nickel-coated carbon nanotube composite material. The preparation method comprises the following steps: (1) grinding a carbon nanotube, soaking the carbon nanotube with concentrated nitric acid and cleaning the carbon nanotube with hydrofluoric acid to remove impurities; (2) adding a sensitizing solution to sensitize, ultrasonically treating and stirring the mixture for 4-20 min, and filtering the mixture, wherein the sensitizing solution is prepared from SnCl2 and HCl; (3) adding an activating liquid to activate the mixture, ultrasonically treating and stirring the mixture for 7-30 min, and filtering the mixture after activation, wherein the activating liquid is prepared from Pb(NO3)2 and HNO3; and (4) adding a nickeling liquid and a reducer, adjusting the pH to 8.5-9.5, heating the mixture to 65-75 DEG C, stirring the mixture to react for 1-4 h, filtering and washing the mixture to be neutral, and carrying out thermal treatment for 4h at 380 DEG C under nitrogen protection to obtain the nickel-coated carbon nanotube, wherein the nickeling liquid, the reducer and the pH adjustor are prepared by the inventor. The prepared nickel-coated carbon nanotube composite material is good in uniformity and continuity of the coating, high in bonding force, controllable in metal grain size and suitable for being popularized and applied.

Description

technical field [0001] The invention belongs to the technical field of carbon nanotube composite materials, in particular to a preparation method of nickel-coated carbon nanotube composite materials. Background technique [0002] Since their discovery in 1991, carbon nanotubes have been widely used in catalyst supports, nanodevices, electrode materials, and hydrogen storage materials due to their unique mechanical, magnetic, and electrical properties. It has great potential application value in many fields, especially its extremely high axial strength (about 100 times that of steel), large aspect ratio (generally 100-1000), large specific surface area, high temperature stability High resistance, high wear resistance and good thermal conductivity can be used to prepare new composite materials with high strength and good stability. At present, the common research and development direction is concentrated on the research of metal / carbon nanotube composite materials, especially...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/34C23C18/18B22F1/02
CPCC23C18/1855C23C18/1889C23C18/34B22F1/17
Inventor 左小华邓祥义邵秀荣左正蔺绍江王小波
Owner 江苏博霖环保科技有限公司
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