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A kind of preparation method of graphene/carbon black composite particle

A composite particle and graphene technology, applied in the production of bulk chemicals, etc., can solve the problems of poor dispersion of graphene and carbon black, and achieve the effects of excellent characteristics and performance, low thermal conductivity, and broad application prospects.

Active Publication Date: 2019-06-21
BEIJING UNIV OF CHEM TECH
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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 propose a preparation method of graphene / carbon black composite particles, focusing on solving the problem of poor dispersion of graphene and carbon black in rubber

Method used

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  • A kind of preparation method of graphene/carbon black composite particle

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Effect test

Embodiment 1

[0020] (1) Mix 1g of graphene oxide with water to obtain a solution of graphene oxide, put it in an ultrasonic instrument for further ultrasonic dispersion, the ultrasonic frequency is 900HZ, the temperature is 25°C, the ultrasonic time is 0.5h, and the obtained concentration is 1mg / ml of graphene oxide solution;

[0021] (2) Add 0.8 g of carbon black powder to the graphene oxide solution, and then perform ultrasonic dispersion to obtain a graphene oxide / carbon black solution. The ultrasonic frequency is 1000HZ, the time is 0.5h, and the temperature is controlled below 50°C. Add 0.05 g of sodium polystyrene sulfonate, and magnetically stir the mixture for 30 min at room temperature;

[0022] (3) Put the obtained graphene oxide / carbon black aqueous solution into a beaker, then add 5 mg of hydroquinone, mix for 30 minutes, then heat the mixed solution at a constant temperature and keep it at 30°C, and react for 8 hours to obtain graphene / carbon black gel;

[0023] (4) the gr...

Embodiment 2

[0027] (1) Mix 2g of graphene oxide with ethanol to obtain a solution of graphene oxide, put it in an ultrasonic instrument for further ultrasonic dispersion, the ultrasonic frequency is 800HZ, the temperature is 30°C, the ultrasonic time is 0.8h, and the obtained concentration is 2mg / ml of graphene oxide ethanol solution;

[0028] (2) 1 g of carbon black powder was added to the graphene oxide ethanol solution, and then ultrasonically dispersed to obtain the graphene oxide / carbon black ethanol solution. The ultrasonic frequency is 800HZ, the time is 0.8h, and the temperature is controlled below 50°C. Then add 0.05g sodium dodecylsulfonate, and the above mixed solution is magnetically stirred at room temperature for 30min;

[0029] (3) Put the ethanol solution of the obtained graphene oxide / carbon black into a beaker, then add 5 mg of sodium borohydride, mix for 30 minutes, then heat the mixed solution to maintain a constant temperature at 30° C., and react for 12 hours to ob...

Embodiment 3

[0034] (1) Mix 2g of graphene oxide with acetone to obtain a solution of graphene oxide, put it in an ultrasonic instrument for further ultrasonic dispersion, the ultrasonic frequency is 600HZ, the temperature is 30°C, the ultrasonic time is 0.8h, and the obtained concentration is 2mg / The graphene oxide acetone solution of ml;

[0035](2) 1g of carbon black powder was added to graphene oxide acetone solution, and then ultrasonically dispersed to obtain graphene oxide / carbon black acetone solution. The ultrasonic frequency is 800HZ, the time is 0.8h, and the temperature is controlled below 50°C. Add 0.05 g of sodium polystyrene sulfonate, and magnetically stir the mixture for 30 min at room temperature;

[0036] (3) Put the acetone solution of graphene oxide / carbon black obtained in a beaker, then add 5 mg of sodium borohydride, mix for 30 minutes, then heat the mixed solution at a constant temperature and keep it at 30° C., and react for 12 hours to obtain graphene / carbon bl...

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Abstract

The invention provides a preparation method of a graphene / carbon black composite particle, belongs to the field of nano-composite materials, and puts an emphasis on solving the problem of poor dispersity of graphene and carbon black in rubber. According to the preparation method, a cross-linked network structure of graphene aerogel is established, the carbon black is dispersed into micropores of the aerogel in a formation process of the graphene aerogel, and the composite aerogel is added into a rubber matrix, so that the aggregation of the graphene and the carbon black in the same rubber matrix when the graphene and the carbon black are respectively added into the same rubber matrix is avoided. The aerogel provided by the invention is a three-dimensional carbon material with large porosity and specific surface area. Therefore, the graphene / carbon black composite aerogel, which can serve as an excellent reinforced material, is applied to reinforcement of the rubber, so that the abrasion resistance of the rubber can be enhanced. The graphene / carbon black composite aerogel has excellent mechanical property and self-structure, so that the application potential of the graphene / carbon black composite aerogel in the reinforcement of high-performance rubber is huge.

Description

technical field [0001] The invention relates to an application of a graphene material, which belongs to the field of nanocomposite materials. Background technique [0002] Graphene material has excellent mechanical properties. All the hexagonal π bonds in the material plane are formed, and all carbon atoms are arranged in an orderly manner on the same plane, which makes graphene material have very good strength and rigidity. In 2004, unsupported single-layer graphene was obtained for the first time by Geim et al. using the method of micromechanical exfoliation. Graphene is only a single-layer thickness, and it is a material with a very large specific surface area. Its shape and surface area can be changed to obtain materials of other dimensions, such as fullerenes and carbon nanotubes. Generally, single-layer graphene is difficult to prepare and difficult to exist stably. Therefore, graphite with less than 10 layers is usually defined as graphene. This kind of few-layer gra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/02C08K9/04C08K3/04C08L7/00C08L9/06
CPCC08K3/04C08K9/02C08K9/04C08K2201/003C08K2201/014C08L7/00C08L9/06C08L2205/03C08K13/06Y02P20/54
Inventor 温世鹏涂菁琬刘力
Owner BEIJING UNIV OF CHEM TECH
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