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Graphene conductive thin film used for touch screen and preparation method of graphene conductive thin film

A conductive thin film, graphene technology, applied to conductive layers on insulating carriers, electrical digital data processing, instruments, etc., can solve problems such as limiting the scope of application, and achieve the effects of good uniformity and stability, reduced agglomeration, and high film quality.

Active Publication Date: 2018-03-13
冷水江市京科电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the current PTFE films are insulating films, which limits the scope of application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of graphene conductive film for touch screen, it is made up of the raw material of following weight part:

[0031] Polytetrafluoroethylene 120, conductive graphite solution 13, acrylamide 30, ethylene thiourea 0.2, sodium persulfate 1, glyceryl tristearate 2, trimethylolpropane 1, calcium stearate 2, 8-hydroxy quinoline1.

[0032] Described conductive graphite solution is made up of the raw material of following weight portion:

[0033] Graphene 20, ascorbic acid 3, didecyldimethylammonium bromide 1, diacetone acrylamide 0.2, tributyltin trichloride 0.2, 2-mercaptobenzimidazole 1, potassium permanganate 7.

[0034] The preparation method of described conductive graphite solution comprises the following steps:

[0035] (1) Take 2-mercaptobenzimidazole, add it to 14 times its weight in absolute ethanol, stir evenly, add diacetone acrylamide, and keep stirring at 60°C for 5 minutes to obtain an amide alcohol solution;

[0036] (2) Take graphene, add it to 20 time...

Embodiment 2

[0048] A kind of graphene conductive film for touch screen, it is made up of the raw material of following weight part:

[0049] Polytetrafluoroethylene 110, conductive graphite solution 10, acrylamide 20, ethylene thiourea 0.1, sodium persulfate 0.7, glyceryl tristearate 1, trimethylolpropane 0.7, calcium stearate 1, 8-hydroxy Quinoline 0.6.

[0050] Described conductive graphite solution is made up of the raw material of following weight portion:

[0051] Graphene 17-20, ascorbic acid 2, didecyldimethylammonium bromide 0.4, diacetone acrylamide 0.1, tributyltin trichloride 0.1, 2-mercaptobenzimidazole 0.7, potassium permanganate 5.

[0052] The preparation method of described conductive graphite solution comprises the following steps:

[0053] (1) Take 2-mercaptobenzimidazole, add it to 10 times its weight in absolute ethanol, stir evenly, add diacetone acrylamide, keep stirring at 50°C for 3 minutes, and obtain an amide alcohol solution;

[0054] (2) Take graphene, add it ...

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Abstract

The invention discloses a graphene conductive thin film used for a touch screen. The graphene conductive thin film is prepared from the following raw materials in parts by weight: 110-120 parts of polytetrafluoroethylene, 10-13 parts of conductive graphite solution, 20-30 parts of acrylamide, 0.1-0.2 parts of ethylene thiourea, 0.7-1 parts of sodium persulfate, 1-2 parts of glyceryl tristearate, 0.7-1 parts of trimethylolpropane, 1-2 parts of calcium stearate, and 0.6-1 parts of 8-hydroxyquinoline. The thin film is high in conductivity, uniform stability and quality, without causing the phenomena of bubble forming and the like when the thin film is used on the touch screen.

Description

technical field [0001] The invention belongs to the field of films, and in particular relates to a graphene conductive film for a touch screen and a preparation method thereof. Background technique [0002] Graphene is the most promising metallization component for printed electronic device technology due to its extraordinary electrical conductivity, strength dozens of times stronger than steel, excellent light transmission and chemical stability. The preparation methods of graphene include chemical vapor deposition method, redox method, liquid phase exfoliation method, etc., and inkjet printing method has been reported to use reduced graphene oxide for organic thin film transistor electrodes, temperature and chemical sensors, etc., but due to The reduction of graphene oxide cannot completely restore the electronic structure of graphene, and the electrical conductivity drops significantly. However, the liquid phase exfoliation method has the advantages of low raw material co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/14G06F3/041
CPCG06F3/041H01B5/14
Inventor 方万漂
Owner 冷水江市京科电子科技有限公司
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