A kind of polyaniline coated graphene microsphere and preparation method thereof

A graphene and polyaniline technology, applied in non-metallic conductors, conductors, organic material conductors, etc., can solve the problems of insufficient electrochemical activity or electrical conductivity, poor solubility of polyaniline, and limited value of pure polyaniline large-scale application, etc. To achieve the effect of wide range of use, good conductivity and high cycle stability

Active Publication Date: 2019-11-01
安徽聚科生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Considering the disadvantages of polyaniline itself, such as poor solubility, insufficient electrochemical activity, or insufficient electrical conductivity, the large-scale application value of pure polyaniline is still limited to a certain extent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A polyaniline-coated graphene microsphere, which is composed of the following raw materials in parts by weight: graphene 13, glycidyl methacrylate 6, chitosan 8, aniline 200, ammonium persulfate 6, triethyl Amine 0.02, p-nitrobenzoic acid 3, catalyst 0.12.

[0019] The catalyst is 1-methylimidazole.

[0020] The preparation method of described polyaniline coated graphene microspheres, comprises the following steps:

[0021] (1) Get glycidyl methacrylate, join in the isopropanol of its weight 20 times, stir evenly, add chitosan, raising temperature is 60 ℃, keep stirring for 4 hours, distill and remove isopropanol, obtain Modified chitosan;

[0022] (2) Get graphene, join in the nitric acid solution of 40 times of its weight, 98%, ultrasonic 13 hours, suction filtration, filter cake is washed with water, dry at normal temperature, mix with p-nitrobenzoic acid, add to the mixture weight 30 times the amount of deionized water, raise the temperature to 60°C, heat and sti...

Embodiment 2

[0028] A polyaniline-coated graphene microsphere, which is composed of the following raw materials in parts by weight: graphene 10, glycidyl methacrylate 4, chitosan 5, aniline 160, ammonium persulfate 4, triethyl Amine 0.01, p-nitrobenzoic acid 2, catalyst 0.1.

[0029] The catalyst is 1-methylimidazole.

[0030] The preparation method of described polyaniline coated graphene microspheres, comprises the following steps:

[0031] (1) Get glycidyl methacrylate, join in the isopropanol of its weight 10 times, stir evenly, add chitosan, raising temperature is 55 ℃, keep stirring for 3 hours, distill and remove isopropanol, obtain Modified chitosan;

[0032] (2) Get graphene, join in the nitric acid solution of 30 times of its weight, 96%, ultrasonic 10 hours, suction filtration, filter cake is washed with water, dry at normal temperature, mix with p-nitrobenzoic acid, add to the mixture weight 20 times of deionized water, raise the temperature to 50°C, keep warm and stir for 2...

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PUM

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Abstract

The invention discloses polyaniline coated graphene microspheres and a preparation method thereof. The hollow spheres are prepared from the following raw materials in parts by weight: 10-13 parts of graphene, 4-6 parts of glycidyl methacrylate, 5-8 parts of chitosan, 160-200 parts of aniline, 4-6 parts of ammonium persulfate, 0.01-0.02 part of triethylamine, 2-3 parts of p-nitrobenzoic acid and 0.1-0.12 part of a catalyst. The microspheres are good in conductivity, high in mechanical stability, wide in application range and excellent in comprehensive performance.

Description

technical field [0001] The invention belongs to the field of new materials, and in particular relates to a polyaniline-coated graphene microsphere and a preparation method thereof. Background technique [0002] Due to its low synthesis cost, simple synthesis method, miscellaneous reversibility, and good photoelectric properties, polyaniline has been tried to be used in many social fields, such as battery electrode materials, anti-corrosion materials, electromagnetic shielding materials, photothermal, sensors, etc.; [0003] Considering the disadvantages of polyaniline itself, such as poor solubility, insufficient electrochemical activity, or insufficient electrical conductivity, the large-scale application value of pure polyaniline is still limited. In recent years, the research of nano-composite materials has become a hot spot. People began to compound polyaniline with other materials to construct polyaniline-based nanocomposites, which further expanded the application fiel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/04H01B1/12C08G73/02C08B37/08
CPCC08B37/003C08G73/0266H01B1/04H01B1/128
Inventor 孙艺宾
Owner 安徽聚科生物科技有限公司
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