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Preparation method of graphene-blending polyimide conductive film

A polyimide, conductive film technology, applied in the field of material processing, to prevent loss, reduce surface conductivity, and increase rigidity

Inactive Publication Date: 2015-02-04
QINGDAO BAIZHONG CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of static electricity is quite harmful in ships, aircrafts and electronic components, and will cause extremely serious consequences such as capacitor breakdown and damage to electronic components.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Prepare graphene-blend polyimide conductive film by following method:

[0015] (1) Add 2000ml of solvent methyl acetate, 80g of 4,4'-dioctyldiphenylamine (ODA) and 10g of heterocyclic amine into the container, add 100g of pyromellitic dianhydride (PMDA) while stirring, and react for 3 hours to form Polyamic acid solution; (2) add 0.15g graphene powder to the above solution, and perform ultrasonic treatment, the ultrasonic power is 200W, and the ultrasonic treatment is performed at a temperature of 25°C for 1h, and then the temperature is raised to 35°C, and then ultrasonicated for 1h , to obtain the graphene-blend polyamic acid solution; (3) above-mentioned solution is spread film on glass plate and scrape off, remove solvent methyl acetate in common oven, be placed in vacuum oven again, make graphene- The imidization of the polyamic acid is complete, thereby obtaining the graphene-blended polyimide conductive film.

[0016] The prepared graphene-blend polyimide conduc...

Embodiment 2

[0018] Prepare graphene-blend polyimide conductive film by following method:

[0019] (1) Add 3000ml of solvent methyl acetate, 100g of 4,4'-dioctyldiphenylamine (ODA) and 20g of heterocyclic amine into the container, add 100g of pyromellitic dianhydride (PMDA) while stirring, and react for 3 hours to form Polyamic acid solution; (2) add 0.2g graphene powder to the above solution, and perform ultrasonic treatment, the ultrasonic power is 200W, and ultrasonic treatment is performed at 25°C for 1h, and then the temperature is increased to 35°C, and ultrasonic treatment is performed for 1h , to obtain a graphene-polyamic acid solution; (3) spread the above solution on a glass plate and scrape it flat, remove the solvent methyl acetate in a common oven, and then place it in a vacuum oven to make the graphene-polyamide The acid imidization is complete, so as to obtain the graphene-blend polyimide conductive film.

[0020] The prepared graphene-blend polyimide conductive film has a...

Embodiment 3

[0022] Prepare graphene-blend polyimide conductive film by following method:

[0023] (1) Add 2000ml of solvent methyl acetate, 120g of 4,4'-dioctyl diphenylamine (ODA) and 30g of heterocyclic amine into the container, add 100g of pyromellitic dianhydride (PMDA) while stirring, and react for 3 hours to form Polyamic acid solution; (2) add 0.3g graphene powder to the above solution, and perform ultrasonic treatment, the ultrasonic power is 200W, and ultrasonic treatment is performed at 25°C for 1h, and then the temperature is increased to 35°C, and ultrasonic treatment is performed for 1h , to obtain a graphene-polyamic acid solution; (3) spread the above solution on a glass plate and scrape it flat, remove the solvent methyl acetate in a common oven, and then place it in a vacuum oven to make the graphene-polyamide The acid imidization is complete, so as to obtain the graphene-blend polyimide conductive film.

[0024] The prepared graphene-blend polyimide conductive film has ...

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Abstract

A preparation method of graphene-blending polyimide conductive film comprises the steps of: (1) adding solvent methyl acetate, heterocyclic amine and ODA (octyl decyl adipate) into a container, adding PMDA (pyromellitic dianhydride) while stirring, and reacting for 3h to generate a polyamic acid solution; (2) adding graphene powder into the polyamic acid solution, ultrasonically treating for 2h, keeping the temperature at 25- 35 DEG C during the ultrasonic process to obtain a graphene-polyamide acid solution; and (3) coating a glass plate with the solution and scraping to smooth, removing the solvent methyl acetate in an ordinary oven, and placing in a vacuum oven for complete imide- amination of graphene-polyamide acid to obtain a graphene-blending polyimide conductive film. The preparation method can reduce the polyimide surface conductivity, prevent static electricity and enlarge scope of application.

Description

technical field [0001] The invention relates to a preparation method of a graphene-blended polyimide conductive film, which belongs to the field of material processing. technical background [0002] In the prior art, polyimide high-efficiency heat-insulating and sound-absorbing lightweight materials are resistant to high and low temperatures, low in density, non-toxic, smokeless, convenient and safe in construction, and good in sound absorption performance. They are ideal for ships, aerospace, high-speed trains and other fields. An excellent choice for heat insulating and sound absorbing materials. However, the surface resistivity of polyimide film is at the level of 1016Ω / square, and its conductivity is not good. It can be used as an insulating material by itself. However, with the expansion of the space field, the application of polyimide materials in aerospace engineering It is becoming more and more extensive, and the requirements for its various performances are also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/08C08K3/04C08J5/18C08G73/10
CPCC08K3/04C08G73/1003C08J5/18C08J2379/08C08K2201/001C08L2203/16C08L2203/20C08L79/08
Inventor 张明
Owner QINGDAO BAIZHONG CHEM TECH
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