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Nano-composite carbon paper and preparation method thereof

A nano-composite, carbon paper technology, applied in special paper, chemical instruments and methods, synthetic cellulose/non-cellulose material pulp/paper, etc., can solve the problems of poor mechanical properties of composite carbon paper, achieve low oxidation degree, Excellent mechanical properties, the effect of improving strength

Inactive Publication Date: 2018-01-23
六安永吉纳米材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a nanocomposite carbon paper and its preparation method, in order to solve the problem of poor mechanical properties of the composite carbon paper in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation method of nanocomposite carbon paper, comprises the steps:

[0024] (1) Mix graphene, strong alkali, and water in a certain mass ratio, ultrasonically disperse them for 1 hour, place them in a microwave oven for microwave reaction for 0.5 hours, then rinse and dry them several times to obtain the primary product, mix the primary product with strong oxidizing agent, water Mix according to the mass ratio, react in a reaction kettle at 100°C for 0.5 hours, take out the product, wash with water several times, and dry to obtain part of graphene oxide;

[0025] Among them, the mass ratio of graphene, strong alkali, and water is 1:10:50, and the mass ratio of primary product, strong oxidant, and water is 1:5:50;

[0026] (2) carbon nanotubes and step (1) gained part graphene oxide are mixed with a certain amount of ethanol respectively, obtain carbon nanotube dispersion liquid and graphene dispersion liquid, wherein, the massfraction of carbon nanotubes is 10%,...

Embodiment 2

[0030] The preparation method of nanocomposite carbon paper, comprises the steps:

[0031] (1) Mix graphene, strong alkali, and water according to a certain mass ratio, ultrasonically disperse for 1 hour, place in a microwave oven for 1 hour of microwave reaction, then rinse and dry several times to obtain the primary product, and mix the primary product with strong oxidizing agent, water Mix according to the mass ratio, react in a reactor at 150°C for 1.5 hours, take out the product, wash with water several times, and dry to obtain part of graphene oxide;

[0032] Among them, the mass ratio of graphene, strong alkali, and water is 1:15:50, and the mass ratio of primary product, strong oxidant, and water is 1:10:50;

[0033] (2) carbon nanotubes and step (1) gained part graphene oxide are mixed with a certain amount of ethanol respectively, obtain carbon nanotube dispersion liquid and graphene dispersion liquid, wherein, the massfraction of carbon nanotubes is 10%, graphite T...

Embodiment 3

[0037] The preparation method of nanocomposite carbon paper, comprises the steps:

[0038] (1) Mix graphene, strong alkali, and water according to a certain mass ratio, ultrasonically disperse for 1 hour, place in a microwave oven for microwave reaction for 2 hours, then rinse and dry several times to obtain the primary product, and mix the primary product with strong oxidizing agent, water Mix according to the mass ratio, react in a reaction kettle at 150°C for 2 hours, take out the product, wash with water several times, and dry to obtain part of graphene oxide;

[0039] Among them, the mass ratio of graphene, strong alkali, and water is 1:20:50, and the mass ratio of primary product, strong oxidant, and water is 1:10:50;

[0040] (2) carbon nanotubes and step (1) gained part graphene oxide are mixed with a certain amount of ethanol respectively, obtain carbon nanotube dispersion liquid and graphene dispersion liquid, wherein, the massfraction of carbon nanotubes is 20%, gra...

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Abstract

The invention relates to nano-composite carbon paper and a preparation method thereof. The preparation method includes: preparing partially-oxidized graphene, preparing carbon nanotube dispersion liquid and graphene dispersion liquid, mixing the carbon nanotube dispersion liquid and the graphene dispersion liquid to obtain mixed dispersion liquid, placing the mixed dispersion liquid into a container with electrodes, using an external electric field to supply power, and drying under the power supply of the external electric field to obtain the high-strength composite carbon paper. The nano-composite carbon paper and the preparation method thereof have the advantages that carbon nanotubes are used as the framework of the composite carbon paper, the partially-oxidized graphene is introduced into the framework, the surface of the partially-oxidized graphene contains a small number of oxygen-containing groups which are combined with the carbon nanotubes to form a good interface, and the partially-oxidized graphene is low in oxidization degree, keeps a complete graphite crystal structure, keeps the excellent mechanical performance of the graphene and increases the strength of the composite carbon paper.

Description

technical field [0001] The invention relates to the field of nano-carbon material preparation, in particular to a nano-composite carbon paper and a preparation method thereof. Background technique [0002] Nanocarbon paper is a non-woven fabric form composed of disordered carbon nanotubes. It is the simplest macroscopic material form of carbon nanotubes. It has the characteristics of light weight, flexibility, electrical conductivity, heat conduction and large specific surface area. With its excellent functional characteristics, it has important application prospects in the fields of electrode materials, environmental materials, filter materials, catalytic carriers, electronic materials, etc. It is a new type of carbon paper product after traditional carbon fiber paper and graphite paper. [0003] However, in the carbon nanotube paper, the carbon nanotubes are entangled with each other by the van der Waals force, the force between the carbon nanotubes is very weak, and the c...

Claims

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Application Information

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IPC IPC(8): D21H27/00D21H13/50C01B32/194C01B32/198
Inventor 王天珍
Owner 六安永吉纳米材料科技有限公司
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