Method for preparing composite material of graphene and graphene poly-p-phenylenediamine

A poly-p-phenylenediamine and composite material technology is applied in the field of preparation of graphene colloid and graphene-poly-p-phenylene diamine composite material, and can solve the problems of high reaction temperature, high equipment requirements, unfavorable large-scale application and the like

Inactive Publication Date: 2010-05-19
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, domestic and foreign patents mostly use CVD method [Chinese patent 200810113597] and epitaxial growth method [Chinese patent 200780005630] to prepare graphene, which have high requirements for equipment; or use metal sodium and halogenated hydrocarbon reaction [Chinese patent 200910077131], the raw materials are expensive and the reaction High temperature is not conducive to large-scale application

Method used

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  • Method for preparing composite material of graphene and graphene poly-p-phenylenediamine
  • Method for preparing composite material of graphene and graphene poly-p-phenylenediamine
  • Method for preparing composite material of graphene and graphene poly-p-phenylenediamine

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Experimental program
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Effect test

Embodiment 1

[0018] 0.1 g of graphite oxide was dissolved in 100 ml of water, and then ultrasonically dispersed for 2 hours to form a graphene oxide colloid with a mass concentration of 1 mg / ml. 0.9 g of p-phenylenediamine was dissolved in 100 ml of N,N-dimethylformamide to form an aqueous solution of p-phenylenediamine with a mass concentration of 9 mg / ml. The prepared graphene oxide colloid and p-phenylenediamine aqueous solution were mixed and then poured into a round-bottomed flask and boiled and refluxed at 90° C. for 24 hours. The obtained red graphene colloid was filtered and washed with acetone to obtain a graphene wet powder. Get 0.05g graphene wet powder and transfer to 100ml ethanol, make the graphene colloid that concentration is 0.5mg / ml.

[0019] 0.1 g of graphite oxide was dissolved in 100 ml of water, and then ultrasonically dispersed for 2 hours to form a graphene oxide colloid with a mass concentration of 1 mg / ml. 0.9 g of p-phenylenediamine was dissolved in 100 ml of N,...

Embodiment 2

[0022] 0.1 g of graphite oxide was dissolved in 100 ml of water, and then ultrasonically dispersed for 1 hour to form a graphene oxide colloid with a mass concentration of 1 mg / ml. 0.9 g of p-phenylenediamine was dissolved in 100 ml of N,N-dimethylformamide to form an aqueous solution of p-phenylenediamine with a mass concentration of 9 mg / ml. Mix the prepared graphene oxide colloid and p-phenylenediamine aqueous solution, pour it into a round bottom flask and boil and reflux at 90°C for 24 hours, filter the resulting red graphene colloid, wash with acetone to obtain a graphene wet powder, and take 0.05g of graphite Graphene wet powder is transferred to 100ml ethanol, and prepared concentration is the graphene colloid of 0.5mg / ml.

[0023]0.1 g of graphite oxide was dissolved in 100 ml of water, and then ultrasonically dispersed for 1 hour to form a graphene oxide colloid with a mass concentration of 1 mg / ml. 0.9 g of p-phenylenediamine was dissolved in 100 ml of N,N-dimethyl...

Embodiment 3

[0025] 0.1 g of graphite oxide was dissolved in 100 ml of water, and then ultrasonically dispersed for 1.5 hours to form graphene oxide colloids with a mass concentration of 1 mg / ml. 0.9 g of p-phenylenediamine was dissolved in 100 ml of N,N-dimethylformamide to form an aqueous solution of p-phenylenediamine with a mass concentration of 9 mg / ml. Mix the prepared graphene oxide colloid and p-phenylenediamine aqueous solution, pour it into a round bottom flask and boil and reflux at 90°C for 24 hours, filter the resulting red graphene colloid, wash with acetone to obtain a graphene wet powder, and take 0.05g of graphite Graphene wet powder is transferred to 100ml ethanol, and prepared concentration is the graphene colloid of 0.5mg / ml.

[0026] 0.1 g of graphite oxide was dissolved in 100 ml of water, and then ultrasonically dispersed for 1.5 hours to form graphene oxide colloids with a mass concentration of 1 mg / ml. 0.9 g of p-phenylenediamine was dissolved in 100 ml of N,N-dim...

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Abstract

The invention relates to a method for preparing a composite material of graphene and graphene poly-p-phenylenediamine, which comprises the following steps of: dissolving p-phenylenediamine in N,N-dimethylformamide, and then adding the mixture into an oxidized graphite colloid treated by ultrasonic de-bonding; treating the mixture in an oil bath, and filtering an obtained colloid; washing the colloid with acetone, and then dispersing the obtained wet powder into ethanol, glycol, N-methyl pyrrolidone and the N,N-dimethylformamide to obtain a stable graphene colloid; adding a K2S2O8 hydrochloric acid aqueous solution into the unfiltered and unwashed graphene colloid; treating the mixture in an ice bath; and washing the mixture with acetone, hydrochloric acid and water to obtain graphene poly-p-phenylenediamine composite powder. The composite material of the graphene colloid and the graphene poly-p-phenylenediamine prepared by the method has good dispersity and simple preparation process.

Description

technical field [0001] The invention relates to a preparation method of graphene colloid and graphene poly-p-phenylenediamine composite material, in particular to a preparation method of stable graphene colloid and in-situ polymerized graphene poly-p-phenylenediamine composite material. Background technique [0002] Graphene is a new type of carbon material with a two-dimensional lattice structure in which carbon atoms are tightly packed, with a thickness of about 0.34 nanometers. It is the basic unit of other dimensional carbon materials. According to the number of layers, it can be divided into one-layer or few-layer graphene. Theoretical research on graphene has a history of 60 years, but the two-dimensional graphene that can truly exist independently was obtained by Novoselov et al. from the University of Manchester in the United Kingdom in 2004 by stripping highly oriented pyrolytic graphite with adhesive tape. Since the discovery of graphene, graphene has become a hot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/02C08K3/04C01B31/04
Inventor 陈尧张熊余鹏马衍伟
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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