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Method for preparing three-dimensional graphene/carbon nanotube composite material

A technology of carbon nanotubes and composite materials, applied in the field of preparation of three-dimensional graphene/carbon nanotube composite materials, can solve the problem that the mechanical properties and electrical conductivity of composite materials have not been improved as expected, carbon nanotubes and graphene lack effective dispersion, etc. problems, to achieve the effect of realizing large-scale production, enriching the hierarchical pore structure, and avoiding agglomeration

Inactive Publication Date: 2016-07-06
JINAN JIAXING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lack of effective dispersion of carbon nanotubes and graphene, the failure to form an effective path for load transfer and carrier transport between isolated aggregates, is the bottleneck where the mechanical properties and electrical conductivity of their composite materials have not achieved the expected improvement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Preparation of graphene oxide suspension: add graphene oxide and sodium dodecylbenzene sulfonate into deionized water, the mass ratio of graphene oxide and sodium dodecylbenzene sulfonate is 1:1, ultrasonically disperse Mix evenly, obtain the graphene oxide solution that concentration is 5g / L;

[0019] (2) Preparation of carbon nanotube suspension: add carbon nanotubes to deionized water, and form a suspension of carbon nanotubes with a concentration of 0.5 g / L after ultrasonic dispersion;

[0020] (3) Preparation of polystyrene resin microspheres: Add polystyrene microspheres with a particle size of 300 nm into deionized water to prepare a solution of polystyrene microspheres with a concentration of 5%, and then sequentially add polystyrene microspheres with a concentration of 1mol / L The ethanol solution of phenol, the aqueous solution that concentration is 2mol / L formaldehyde, its molar ratio of formaldehyde and phenol is 1: 1; The mass ratio of described formalde...

Embodiment 2

[0024] (1) Preparation of graphene oxide suspension: add graphene oxide and sodium dodecylbenzene sulfonate into deionized water, the mass ratio of graphene oxide to sodium dodecylbenzene sulfonate is 2:1, ultrasonically disperse Mix evenly to obtain a graphene oxide solution with a concentration of 10g / L;

[0025] (2) Preparation of carbon nanotube suspension: add carbon nanotubes to deionized water, and form a suspension of carbon nanotubes with a concentration of 0.5 g / L after ultrasonic dispersion;

[0026] (3) Preparation of polystyrene resin microspheres: Add polystyrene microspheres with a particle size of 500 nm into deionized water to prepare a solution of polystyrene microspheres with a concentration of 5%, and then sequentially add polystyrene microspheres with a concentration of 1mol / L The ethanol solution of phenol, the aqueous solution that concentration is 2mol / L formaldehyde, its molar ratio of formaldehyde and phenol is 1: 1; The mass ratio of described formal...

Embodiment 3

[0030] (1) Preparation of graphene oxide suspension: add graphene oxide and sodium octadecyl sulfate into deionized water, the mass ratio of graphene oxide to sodium octadecyl sulfate is 2:1, and ultrasonically disperse and mix evenly to obtain Concentration is the graphene oxide solution of 10g / L;

[0031] (2) Preparation of carbon nanotube suspension: add carbon nanotubes to deionized water, and form a suspension of carbon nanotubes with a concentration of 1 g / L after ultrasonic dispersion;

[0032] (3) Preparation of polystyrene resin microspheres: Add polystyrene microspheres with a particle size of 500 nm into deionized water to prepare a solution of polystyrene microspheres with a concentration of 5%, and then sequentially add polystyrene microspheres with a concentration of 1mol / L The ethanol solution of phenol, the aqueous solution that concentration is 2mol / L formaldehyde, its molar ratio of formaldehyde and phenol is 1: 1; The mass ratio of described formaldehyde and...

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Abstract

The invention relates to a method for preparing a three-dimensional graphene / carbon nanotube composite material. The method comprises the following steps: (1) preparing graphene oxide suspension; (2) preparing carbon nanotube suspension; (3) preparing polystyrene resin microspheres; (4) preparing graphene / carbon nanotube gel; (5) preparing a three-dimensional graphene / carbon nanotube compound. The three-dimensional graphene / carbon nanotube compound prepared by using the method is rich in graded porous structure, the advantage of structural complementation of graphene and carbon nanotubes is achieved, and thus the composite material is relatively good in electric and heat conduction property. The composite material has wide application in fields such as traffic transportation, electronic industry, civil construction, buildings and chemical engineering. The method provided by the invention is low in equipment requirement, simple in process and easy in large-scale production.

Description

technical field [0001] The invention belongs to the field of carbon material preparation, in particular to a preparation method of a three-dimensional graphene / carbon nanotube composite material. Background technique [0002] Since the discovery of carbon nanotubes by Iijima in 1991 and the first preparation of graphene by Andre Geim and Kostya Novoselov in 2004, these two carbon nanomaterials have received extensive attention, because both of them have very outstanding physical properties, which are expected to pass through the polymer Modification to give polymers better performance. However, there have been two important problems in the application of carbon nanotubes that have not been resolved. One is the dispersion of carbon nanotubes because they are very easy to agglomerate, and the other is high cost. The advent of graphene appears to provide an answer to both of these puzzles. The chemical structures of graphene and carbon nanotubes are similar, but graphene is a...

Claims

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Application Information

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IPC IPC(8): C04B35/52
CPCC04B35/522C04B2235/422C04B2235/48
Inventor 陈晓莲
Owner JINAN JIAXING TECH
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