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Method for preparing nano polypyrrole-reduced graphene oxide composite material by double emulsion method

A nano-polypyrrole and double-emulsion technology is applied in the preparation of conductive reduced graphene oxide composite materials and the preparation of conductive nano-polypyrrole composite materials to achieve excellent electrical conductivity, electrochemical properties, uniform morphology and excellent electrical conductivity. Effect

Active Publication Date: 2021-08-06
SHANGHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are no relevant reports on the preparation of nano-polypyrrole / reduced graphene oxide composites based on the double emulsion method.

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  • Method for preparing nano polypyrrole-reduced graphene oxide composite material by double emulsion method
  • Method for preparing nano polypyrrole-reduced graphene oxide composite material by double emulsion method
  • Method for preparing nano polypyrrole-reduced graphene oxide composite material by double emulsion method

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Embodiment 1

[0026] In this example, see Figure 1 to Figure 4 , a kind of method utilizing double emulsion method to prepare nano polypyrrole-reduced graphene oxide composite material, comprises the steps:

[0027] a. Dissolve 2 mL of purified pyrrole monomer, 4 mL of n-hexanol and 2.5 g of Span-80 in 50 mL of toluene solvent, and after ultrasonic dispersion for 10 minutes, a mixed raw material solution is obtained for use;

[0028] b. Slowly add 10 mL of deionized water dropwise to the mixed raw material solution prepared in the step a, and stir at a constant speed for 30 min under ice-water bath conditions to make the mixed raw material solution form a stable W 1 / O primary emulsion;

[0029] c. preparation concentration is 150mL of hydrochloric acid solution of 1mol / L, in the hydrochloric acid solution, add the graphene oxide of 1.7g sodium lauryl sulfate and 0.19g reduction, after ultrasonic dispersion 1 hour, again in described step b Prepared W 1 / O The primary emulsion is added ...

Embodiment 2

[0036] This embodiment is basically the same as Embodiment 1, especially in that:

[0037] In the present embodiment, a method for preparing nano polypyrrole-reduced graphene oxide composite material by double emulsion method comprises the following steps:

[0038] a. Dissolve 2mL of purified pyrrole monomer, 4mL of n-hexanol and 1.25g of Span-80 in 50mL of toluene solvent, and ultrasonically disperse for 10 minutes to obtain a mixed raw material solution for use;

[0039] b. Slowly add 10 mL of deionized water dropwise to the mixed raw material solution prepared in the step a, and stir at a constant speed for 30 min under ice-water bath conditions to make the mixed raw material solution form a stable W 1 / O primary emulsion;

[0040] c. preparation concentration is 150mL of the hydrochloric acid solution of 1mol / L, in the hydrochloric acid solution, add the graphene oxide of 0.85g sodium lauryl sulfate and 0.19g reduction, after ultrasonic dispersion 1 hour, again in describ...

Embodiment 3

[0046] This embodiment is basically the same as the previous embodiment, and the special features are:

[0047] In the present embodiment, a method for preparing nano polypyrrole-reduced graphene oxide composite material by double emulsion method comprises the following steps:

[0048] a. Dissolve 2 mL of purified pyrrole monomer, 4 mL of n-hexanol and 0.625 g of Span-80 in 50 mL of toluene solvent, and after ultrasonic dispersion for 10 minutes, a mixed raw material solution is obtained for use;

[0049] b. Slowly add 10 mL of deionized water dropwise to the mixed raw material solution prepared in the step a, and stir at a constant speed for 30 min under ice-water bath conditions to make the mixed raw material solution form a stable W 1 / O primary emulsion;

[0050] c. preparation concentration is 150mL of the hydrochloric acid solution of 1mol / L, in the hydrochloric acid solution, add the graphene oxide of 0.425g sodium lauryl sulfate and 0.19g reduction, after ultrasonic d...

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Abstract

The invention discloses a method for preparing nano-polypyrrole-reduced graphene oxide composite material by double emulsion method, using oil-in-water W 1 / O / W 2 Nano-polypyrrole / reduced graphene oxide composites were prepared by the double emulsion method of the system. The microscopic morphology of polypyrrole / reduced graphene oxide can be controlled by double emulsion method, and the agglomeration of nano-reduced graphene oxide can be well prevented. The prepared polypyrrole exhibits a porous structure, which not only helps to increase the specific surface area of ​​the material, but also facilitates its compounding with inorganic nanoparticles, thereby obtaining a composite material with excellent electrical conductivity, processability and electrochemical properties. The synthesized nano-polypyrrole / reduced graphene oxide composite has uniform morphology and no obvious agglomeration. The composite material prepared by the invention has broad application prospects in being used as electromagnetic shielding materials, conductive polymer materials, supercapacitor electrode materials and the like.

Description

technical field [0001] The present invention relates to a method for preparing a conductive polymer composite material, in particular to a method for preparing a conductive nano-polypyrrole composite material, and also to a method for preparing a conductive reduced graphene oxide composite material, which is applied to conductive polymer materials , Electromagnetic shielding materials, supercapacitor electrode materials technical field. Background technique [0002] In recent years, new supercapacitors using conductive polymers as electrode materials have received more and more attention. Conductive polymers can undergo rapid and reversible P- or N-doping reactions during the polymerization process to increase their charge density and thus have good electrical conductivity, usually reaching 0.01-100 S / cm. Currently, only a few polymers can perform this stable reaction, the most common conductive polymers are polyaniline (PANI), polypyrrole (PPy) and polythiophene (PTH), etc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L79/04C08K3/04C08G73/06C08J9/00
Inventor 贾少晋陈俊聿李记伟杨少华
Owner SHANGHAI UNIV
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