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Graphene film and preparation method therefor

A graphene film and graphene technology, applied in the preparation of the preparation method, in the field of graphene film, can solve serious problems, electromagnetic wave pollution, heat generation, etc., and achieve good effect, easy operation, and stable product quality

Active Publication Date: 2015-12-02
CHANGZHOU FUXI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The upgrading of electronic equipment brings great convenience and excellent experience to people's life, but also brings some problems: (1) more heat generation; (2) more serious electromagnetic wave pollution

Method used

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  • Graphene film and preparation method therefor

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] Embodiment According to the method disclosed in the present invention, carry out the following operations:

[0024] a) Mix graphene oxide and water at a ratio of 1:20. The above ratio can be adjusted within the range of 1: (10-100), which is determined according to the needs of actual operation. Use a high-speed disperser with an ultrasonic rod to Stir and mix at a speed of 500~3000rps for 2~8 hours;

[0025] b) Use a vibrating sieve to filter out impuritie...

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Abstract

The invention provides a preparation method for a graphene film. The method comprises the following steps of carrying out ultrasonic soaking and stirring on graphene oxide, carrying out impurity filtration, coating a PET (Polyethyleneglycol Terephthalate) film with a graphene oxide solution, and carrying out carbonization and graphitization, thereby obtaining the graphene film. The method is simple in process and easy to popularize, and the obtained graphene film has extremely high shielding effectiveness and good heat dissipating performance.

Description

technical field [0001] The invention relates to the field of electronic products, in particular to a preparation method of a graphene film, and the invention also relates to a graphene film. Background technique [0002] With the expansion and popularization of electronic and electrical equipment applications, the performance and structure requirements of electronic equipment are becoming more and more stringent, including higher processing speed, higher processing frequency, smaller volume, lighter weight, higher power. The upgrading of electronic equipment brings great convenience and excellent experience to people's life, but also brings some problems: (1) more heat generation; (2) more serious electromagnetic wave pollution. [0003] Therefore, it is necessary to develop a product that has good heat dissipation performance and can reduce electromagnetic pollution. Contents of the invention [0004] The invention proposes a preparation method of a graphene thin film, ...

Claims

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Application Information

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IPC IPC(8): C04B35/52
Inventor 相小琴
Owner CHANGZHOU FUXI TECH CO LTD
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