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Graphene protection method and graphene film containing protective layer

A graphene film and graphene technology, applied in chemical instruments and methods, carbon-silicon compound conductors, inorganic chemistry, etc., can solve the problems of graphene damage, affecting the light transmission of graphene, affecting the etching performance of graphene, etc. Achieving improved wear resistance, improved retention of flexibility

Inactive Publication Date: 2015-06-10
2D CARBON CHANGZHOU TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method affects the etching performance of graphene, and the graphene will be damaged after being taken out again, and the light transmission of graphene will be affected after the protective film is attached.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] The present invention is described in detail below, and the following examples are only used to explain and illustrate the technical solutions of the present invention, and are not intended to limit the scope of the present invention.

[0019] Preparation of graphene samples

[0020] Graphene sample: Prepare a transparent graphene film by CVD method, with a size of 20cm*30cm, and then transfer it to a PET substrate.

[0021] Light transmission test

[0022] Test method: Turn on the film light transmittance meter (GZ502A, purchased from Lianyi Microelectronics Co., Ltd.), automatically calibrate the light transmittance, place the graphene film flat on the test bench, and read the transmittance at a wavelength of 550nm value.

[0023] Sheet resistance test

[0024] At a temperature of 23±2°C and a humidity of 60% to 70%RH, the graphene film was placed on a test platform of a non-contact sheet resistance tester (JXNR-2, purchased from Beijing Heng Aode Technology C...

specific Embodiment

[0033] Preparation of Graphene Film 1 Containing a Protective Layer

[0034] Dip the 20cm*30cm graphene sample into acrylic-based light-curing adhesive (purchased from Henkel Loctite), and then lift the graphene sample slowly through slow pulling, so that a uniform liquid film is formed on the surface of the graphene film, and then in 365nm It can be cured by obtaining a curing energy of 2000mj per square centimeter under ultraviolet light, and a graphene film with a thickness of 7 μm is obtained.

[0035] Before the protective layer was formed, the sheet resistance of the graphene film was measured to be 330Ω / sq, and the light transmittance was 86.7%. After forming the protective layer, the sheet resistance of the graphene film becomes 300Ω / sq, and the transmittance is 88.6%. Laser etching tests showed that laser etching can be performed directly on the graphene film without removing the protective layer. Flexibility tests showed good flexibility.

[0036] Preparation ...

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PUM

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Abstract

The invention relates to a method for protection of grapheme with a protective solution. The method comprises the steps of: 1) coating the graphene surface with the protective solution; and 2) curing the protective solution by heating or illumination to form a graphene film containing the protective layer. Specifically, the protective solution for forming the protective layer can be an acrylic acid based light curable glue, acrylic acid based heat curable glue, an epoxy light curable glue, an epoxy heat curable glue, a silicon based heat curable glue, a silicon based light curable glue, a silicon dioxide hardening liquid, a polyurethane based light curable glue, a polyurethane based heat curable glue, a polymethyl methacrylate heat curable glue or polymethyl methacrylate light curable glue. The invention also relates to the protective layer containing graphene film prepared according to the method.

Description

technical field [0001] The invention relates to a method for protecting graphene with a protective liquid and a graphene film containing a protective layer prepared by the method. Background technique [0002] Graphene is a hexagonal honeycomb two-dimensional crystal composed of a single layer of carbon atoms. Due to its excellent electrical, mechanical, thermal and optical properties, graphene has a wide range of applications in the field of materials, such as the manufacture of transparent electrodes, and thinner, faster switching electronic components. [0003] At present, the preparation methods of graphene mainly include mechanical exfoliation, chemical exfoliation, epitaxy, solvent exfoliation, and chemical vapor deposition (CVD). Graphene thin films prepared by chemical vapor deposition are usually attached to metal foil substrates and undergo subsequent transfer steps to transfer them to other substrates. However, due to its film properties, the transferred graphen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04H01B13/00H01B1/04C01B32/194
Inventor 徐振飞
Owner 2D CARBON CHANGZHOU TECH INC
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