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Preparation method of polythiophene/graphene composite electromagnetic material

A graphene composite and electromagnetic material technology, applied in the field of materials, can solve the problems that affect the research and application of graphene, and it is difficult to disperse, so as to achieve the effect of promoting stability, strength, safety and environmental protection, and saving time

Inactive Publication Date: 2017-10-24
赵阳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Graphene with a complete structure is composed of stable benzene six-membered rings, its surface is inert, and the interaction force between it and the polymer is small, while there is a strong van der Waals force between the graphene sheets, which is easy to aggregate and difficult to Uniform dispersion in the polymer matrix, which seriously affects the research and application of graphene in polymer modification

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0024] A preparation method of polythiophene graphene composite electromagnetic material, comprising the following steps:

[0025] (1) Take 70 parts by weight of thiophene, add it to 9 times its weight in chloroform, stir evenly, add 4 parts by weight of 3-aminopropyltriethoxysilane, raise the temperature to 50°C, and ultrasonically for 2 hours, Chloroform was removed by distillation to obtain an aminated monomer;

[0026] (2) Take 110 parts by weight of graphene, add it to 98% sulfuric acid solution 40 times its weight, stir evenly, add 80 parts by weight of potassium permanganate, stir at 30°C for 20 hours, filter, and remove the precipitate Washed with water, dried at room temperature, added to deionized water 13 times its weight, ultrasonicated for 3 minutes, added aminated monomers, 4 parts by weight of polyvinylpyrrolidone, raised the temperature to 60 ° C, added 9 parts by weight of oleic acid, and kept warm Stir for 40-50 minutes to obtain amidated monomer graphene so...

Embodiment 2

[0031] A preparation method of polythiophene graphene composite electromagnetic material, comprising the following steps:

[0032] (1) Take 60 parts by weight of thiophene, add it to chloroform which is 6 times its weight, stir evenly, add 3 parts by weight of 3-aminopropyltriethoxysilane, raise the temperature to 45°C, and ultrasonically for 1 hour, Chloroform was removed by distillation to obtain an aminated monomer;

[0033] (2) Take 100 parts by weight of graphene, add it to 96% sulfuric acid solution that is 30 times its weight, stir evenly, add 75 parts by weight of potassium permanganate, stir at 25°C for 16 hours, filter, and remove the precipitate Washed with water, dried at room temperature, added to deionized water 10 times its weight, ultrasonicated for 2 minutes, added aminated monomers, 3 parts by weight of polyvinylpyrrolidone, raised the temperature to 50 ° C, added 6 parts by weight of oleic acid, and kept warm Stir for 40 minutes to obtain amidated monomer g...

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Abstract

The invention discloses a preparation method of a polythiophene / graphene composite electromagnetic material, wherein an amide water solution of a monomer and graphene oxide is used as a solvent of a polymerization reaction, so that the graphene oxide participates in the polymerization reaction of thiophene. The method effectively improves compatibility of graphene oxide and polythiophene and reduces agglomeration, and improves stability and strength of a final product.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a preparation method of a polythiophene graphene composite electromagnetic material. Background technique [0002] Conductive polymers are a class of polymers with conjugated structures. Chemical, electrochemical or ion doping can make the conductivity level of the polymer from the insulating level to the metal level. It is used in capacitors, energy, metal anti-corrosion and biosensors. It has a good application prospect; [0003] Polythiophene has been paid attention to by researchers because of its good optical, electrical and environmental stability. It is compounded with inorganic nanomaterials to form organic-inorganic nanocomposites, not only because of the introduction of inorganic substances to improve its original performance, but also because of the nano effect and the synergy between polythiophene and inorganic substances, the performance of composite materials i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L65/00C08K9/02C08K3/04C08G61/12
CPCC08G61/126C08G2261/11C08G2261/1432C08G2261/3223C08K3/04C08K9/02C08L65/00
Inventor 赵阳
Owner 赵阳
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