Graphene conductive coating and preparation method thereof

A conductive coating and graphene technology, applied in conductive coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., can solve the problems of complex coating preparation process, high industrialization difficulty, complex coating composition, etc., and achieve broad application prospects, The effect of good electrical/thermal conductivity and simple coating composition

Inactive Publication Date: 2016-04-20
NANTONG JINYUAN INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But because the development of graphene conductive coating is just in the initial stage, there are still many problems to be solved, such as many containing strong acid or strong oxidizing agent in the disclosed graphene conductive coating, environmental friendliness is poor, coating composition is complicated, meanwhile, the preparation process of coating More complex, difficult to industrialize and expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Get graphene 140g, epoxy acrylate resin 180g, polyurethane acrylate 60g, polyethylene wax 60g and 250g ethanol.

[0022] The preparation method of graphene conductive paint:

[0023] 1) 140g graphene is added in 250g ethanol, use ultrasonic wave to disperse graphene in ethanol, ultrasonic power is 200W, ultrasonic wave dispersion time is 15min, obtains graphene ethanol solution;

[0024] 2) 180g epoxy acrylate resin, 60g polyurethane acrylate, 70g polyethylene wax are joined in the graphene ethanol solution that obtains in step 1), use mechanical stirring paddle to disperse, and mechanical stirring speed is 1500rpm, and mechanical stirring time is 60min, finally obtains described graphene conductive paint.

[0025] The resistivity of the conductive film obtained by the graphene conductive coating through the coating process is 2×10 -3 Ω·cm.

Embodiment 2

[0027] Get graphene 160g, epoxy acrylate resin 150g, polyurethane acrylate 65g, polyethylene wax 55g and 300g ethanol.

[0028] The preparation method of graphene conductive paint:

[0029] 1) 160g graphene is added in 300g ethanol, use ultrasonic wave to disperse graphene in ethanol, ultrasonic power is 2000W, ultrasonic wave dispersion time is 30min, obtains graphene ethanol solution;

[0030] 2) 150g epoxy acrylate resin, 65g polyurethane acrylate, 55g polyethylene wax are joined in the graphene ethanol solution that obtains in step 1), use mechanical stirring paddle to disperse, and mechanical stirring speed is 800rpm, and mechanical stirring time is 30min, finally obtain described graphene conductive paint.

[0031] The resistivity of the conductive film obtained by the graphene conductive coating through the coating process is 7×10 -3 Ω·cm.

Embodiment 3

[0033] Get graphene 180g, epoxy acrylate resin 140g, polyurethane acrylate 70g, polyethylene wax 50g and 400g ethanol.

[0034] The preparation method of graphene conductive paint:

[0035] 1) 180g graphene is added in 400g ethanol, use ultrasonic wave to disperse graphene in ethanol, ultrasonic power is 4000W, ultrasonic wave dispersion time is 60min, obtains graphene ethanol solution;

[0036] 2) 140g epoxy acrylate resin, 70g polyurethane acrylate, 50g polyethylene wax are joined in the graphene ethanol solution that obtains in step 1), use mechanical stirring paddle to disperse, and mechanical stirring speed is 300rpm, and mechanical stirring time is 15min, finally obtain described graphene conductive paint.

[0037] The resistivity of the conductive film obtained by the coating process of the graphene conductive coating is 6×10 -4 Ω·cm.

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Abstract

The invention discloses a graphene conductive coating and a preparation method thereof. The graphene conductive coating is prepared from graphene, epoxy acrylic resin, polyurethane acrylate, polyethylene wax and ethyl alcohol, and is prepared by technologies such as ultrasonic dispersion, mechanical agitation and the like. The graphene conductive coating has the advantages of being good in conductivity, heat conduction property and circuit substrate bonding performance, less in pollution, environment-friendly, low in cost, suitable for large-scale industrial production and the like; the graphene conductive coating has wide application prospect in the fields such as high-power light-emitting diode (LED) substrates, flat panel displays, solar cell preparation and the like which have requirements on the high-performance and low-cost conductive coating.

Description

technical field [0001] The invention relates to a conductive paint, in particular to a graphene conductive paint and a preparation method thereof. Background technique [0002] With the development of energy conservation, environmental protection and the information industry, the demand for conductive coatings in high-power LED substrates, flat panel displays, solar panels and other fields has become increasingly strong. Traditional conductive coatings represented by silver conductive coatings, copper conductive coatings, and nickel conductive coatings with added silver powder, copper powder, and nickel powder have good electrical conductivity, but due to the addition of silver and other precious metal materials, this undoubtedly improves the manufacturing efficiency of coatings. cost. [0003] Another development direction of conductive coatings is to use carbon materials as fillers in coatings to prepare conductive coatings with high conductivity. Since carbon materials,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D175/14C09D5/24
CPCC09D163/10C08K2201/011C08L2205/03C08L75/14C08L23/06C08K3/04
Inventor 岳巍
Owner NANTONG JINYUAN INTELLIGENT TECH CO LTD
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