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Graphene-based flexible conductive film material and preparation method therefor

A technology of vinyl flexible and conductive materials, applied in the direction of conductive materials dispersed in non-conductive inorganic materials, cable/conductor manufacturing, circuits, etc., can solve the problems of high resistance and poor conductivity, and achieve good bending resistance , good electrical conductivity, the effect of meeting application requirements

Active Publication Date: 2016-08-17
深圳市宝康电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current prepared graphene film has high resistance and poor actual conductivity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A graphene-based flexible conductive film material, comprising a flexible base and a conductive material covering the flexible base, and the conductive material is prepared from the following components in parts by weight: 30 parts of graphene oxide, nano-tantalum powder 7 parts, 10 parts polyaniline, 5 parts polyvinyl alcohol, 7 parts modified alum, 6 parts formaldehyde modified lignin, 2 parts sulfamic acid, 4 parts trimethylamine borane, 2 parts nano activated calcium carbonate, 2 parts of methyl cellulose, 25 parts of polyethylene glycol, 7 parts of ammonium polyvanadate, 2 parts of lithium chlorate, 3 parts of dimethylformamide, 65 parts of 0.5mol / L nitric acid solution, and 200 parts of water.

[0024] The flexible substrate is PET, PBT or PVC.

[0025] The preparation method of the above-mentioned graphene-based flexible conductive film material, the preparation steps are as follows:

[0026] 1) Add graphene oxide to 0.5mol / L nitric acid solution, add trimethyla...

Embodiment 2

[0033] A graphene-based flexible conductive film material, comprising a flexible base and a conductive material covering the flexible base, the conductive material is prepared from the following components by weight: 60 parts of graphene oxide, nano-tantalum powder 18 parts, 23 parts of polyaniline, 12 parts of polyvinyl alcohol, 15 parts of modified alum, 13 parts of formaldehyde modified lignin, 11 parts of sulfamic acid, 10 parts of trimethylamine borane, 7 parts of nano-activated calcium carbonate, 8 parts of methylcellulose, 36 parts of polyethylene glycol, 15 parts of ammonium polyvanadate, 9 parts of lithium chlorate, 16 parts of dimethylformamide, 130 parts of 0.5mol / L nitric acid solution, and 400 parts of water.

[0034] The flexible substrate is PET, PBT or PVC.

[0035] The preparation method of the above-mentioned graphene-based flexible conductive film material, the preparation steps are as follows:

[0036] 1) Add graphene oxide to 0.5mol / L nitric acid solution...

Embodiment 3

[0043] A graphene-based flexible conductive film material, comprising a flexible base and a conductive material covering the flexible base, the conductive material is prepared from the following components by weight: 45 parts of graphene oxide, nano-tantalum powder 12 parts, 16 parts of polyaniline, 8 parts of polyvinyl alcohol, 11 parts of modified alum, 10 parts of formaldehyde modified lignin, 6 parts of sulfamic acid, 7 parts of trimethylamine borane, 4.5 parts of nano-activated calcium carbonate, 5 parts of methyl cellulose, 30 parts of polyethylene glycol, 11 parts of ammonium polyvanadate, 5 parts of lithium chlorate, 10 parts of dimethylformamide, 97 parts of 0.5 mol / L nitric acid solution, and 300 parts of water.

[0044] The flexible substrate is PET, PBT or PVC.

[0045] The preparation method of the above-mentioned graphene-based flexible conductive film material, the preparation steps are as follows:

[0046] 1) Add graphene oxide into 0.5mol / L nitric acid solution...

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Abstract

The invention discloses a graphene-based flexible conductive film material and a preparation method therefor. The conductive film material comprises a flexible substrate and a conductive material for covering the flexible substrate, wherein the conductive material is prepared from the following components in parts by weight: graphene oxide, nanometer tantalum powder, polyaniline, polyving akohol, modified alum, formaldehyde modified xylogen, sulfamic acid, trimethylamine-borane, nanometer active calcium carbonate, methylcellulose, polyethylene glycol, ammonium polyvanadate, lithium chlorate, dimethyl formamide, 0.5mol / L nitric acid and water. The square resistance of the conductive film prepared by the invention is relatively low, which is less than 10<omega> / m; the conductivity can reach greater than 525.4S / cm; after the conductive film is subjected to 200 times of bending, the retention rate of the conductivity of the conductive film can be still greater than 90.2%; and in addition, the graphene-based flexible conductive film material presents high conductivity and bending resistance, so that the conductive film material can satisfy the application requirements in the electronic field.

Description

technical field [0001] The invention belongs to the field of conductive materials, in particular to a graphene-based flexible conductive film material and a preparation method thereof. Background technique [0002] Conductive film is an important optoelectronic material, which is widely used in optoelectronic fields such as touch screen, liquid crystal display, organic light emitting diode display, solar cell and so on. With the continuous development of technology and products, it is hoped that the conductive film will develop in the direction of flexibility and stability. The main materials of traditional conductive films are ITO, copper, zinc oxide, etc. Among them, ITO has the best comprehensive performance and is used the most. However, ITO material resources are limited, inflexible and easy to absorb moisture and yellow, which cannot meet the development of high technology. need. [0003] Graphene is a carbon atom with sp 2 The hybrid orbitals form a hexagonal flat ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/24H01B13/00
CPCH01B1/24H01B13/00
Inventor 姚振红
Owner 深圳市宝康电子材料有限公司
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