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Graphene conductive ink

A technology of conductive ink and graphene, which is applied in inks, household utensils, applications, etc., can solve the problems of poor conductivity and mechanical properties, copper powder conductive ink is easily oxidized, ink is easy to be scratched, and falls off, etc., to achieve Good mechanical properties, high ink stability, and simple preparation steps

Inactive Publication Date: 2013-12-25
SUZHOU AITESI FURTHER MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Gold powder and silver powder conductive inks have stable chemical properties and excellent electrical conductivity, but the cost is high
Copper powder conductive ink is easily oxidized, and its conductivity is unstable
Graphite and carbon fiber conductive inks are low in cost and not easy to be oxidized, but their conductive and mechanical properties are not good, and the ink is easy to be scratched and peeled off

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] In the present embodiment, the mass fraction of each raw material is as follows: 32 parts of acrylic resin, 50 parts of ethanol, 16 parts of single-layer graphene, 1 part of polyethylene wax, 2 parts of polydimethylsiloxane, 1 part of barium stearate share.

[0016] A kind of graphene conductive ink provided by the invention, preparation steps are as follows:

[0017] (1) Dissolve 32 parts of acrylic resin in 50 parts of ethanol to obtain a bonding mixture;

[0018] (2) Mix the above-mentioned bonding mixture with 16 parts of single-layer graphene, 1 part of polyethylene wax, 2 parts of polydimethylsiloxane and 1 part of barium stearate into the dispersion tank for stirring, and control the stirring speed The temperature is 420rpm, the temperature is 33°C, mix evenly to obtain a coarse slurry of conductive ink;

[0019] (3) Move the above-mentioned conductive ink coarse slurry to a grinder for grinding for 1 hour;

[0020] (4) Filter the ground material to obtain the...

Embodiment 2

[0022] In the present embodiment, the mass fraction of each raw material is as follows: 24 parts of polyurethane resin, 45 parts of glycerol, 20 parts of bilayer graphene, 2 parts of polyethylene wax, 1 part of polydimethylsiloxane, stearic acid 1 part barium.

[0023] A kind of graphene conductive ink provided by the invention, preparation steps are as follows:

[0024] (1) Dissolve 24 parts of polyurethane resin in 45 parts of glycerol to obtain a bonding mixture;

[0025] (2) Mix the above-mentioned bonding mixture with 20 parts of double-layer graphene, 2 parts of polyethylene wax, 1 part of polydimethylsiloxane and 1 part of barium stearate into the dispersion tank for stirring, and control the stirring speed at 450rpm, at a temperature of 35°C, mix evenly to obtain a coarse slurry of conductive ink;

[0026] (3) Move the above-mentioned conductive ink coarse slurry to a grinder for grinding for 1.5 hours;

[0027] (4) Filter the ground material to obtain the finished ...

Embodiment 3

[0029] In the present embodiment, the mass fraction of each raw material is as follows: 30 parts of polyurethane resin, 60 parts of isopropanol, 45 parts of three-layer graphene, 3 parts of polyethylene wax, 2 parts of polydimethylsiloxane, stearic acid 1 part barium.

[0030] A kind of graphene conductive ink provided by the invention, preparation steps are as follows:

[0031] (1) Dissolve 30 parts of polyurethane resin in 60 parts of isopropanol to obtain a bonding mixture;

[0032] (2) Mix the above-mentioned bonding mixture with 45 parts of three-layer graphene, 3 parts of polyethylene wax, 2 parts of polydimethylsiloxane and 1 part of barium stearate into the dispersion tank for stirring, and control the stirring speed at 480rpm, at a temperature of 38°C, mix evenly to obtain a coarse slurry of conductive ink;

[0033] (3) Move the coarse slurry of the above-mentioned conductive ink to a grinder for grinding, and the grinding time is 2.5 hours;

[0034] (4) Filter the...

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PUM

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Abstract

The invention discloses graphene conductive ink, which is composed of the following components in mass part: 20-50 parts of adhesive resin, 40-100 parts of alcohol solvent, 10-80 parts of graphene, 1-3 parts of dispersing agent, 1-3 parts of defoaming agent, and 1-3 parts of stabilizing agent, wherein the adhesive resin is one or two types from acrylic resin and polyurethane resin; the alcohol solvent is one or multiple types from ethyl alcohol, glycerin and isopropyl alcohol; the graphene is one or multiple types from single-layer graphene, double-layer graphene and three-layer graphene. The graphene conductive ink is simple in preparation procedure and low in cost; the graphene is selected as an electric conducting medium, so that the electric conducting performance is excellent, the stability is high and the mechanical property is good; the graphene conductive ink has excellent abrasive resistance and scratching resistance.

Description

technical field [0001] The invention relates to an ink, in particular to a graphene conductive ink. Background technique [0002] Conductive ink, as the name implies, is a kind of ink with conductive properties, which is widely used in printing conductive dots and conductive circuits. At present, conductive ink usually uses metal powder, including gold powder, silver powder, copper powder, graphite, carbon fiber, etc. as the conductive medium. Gold powder and silver powder conductive inks have stable chemical properties and excellent electrical conductivity, but the cost is high. Copper powder conductive ink is easily oxidized and its conductivity is unstable. Graphite and carbon fiber conductive inks are low in cost and not easily oxidized, but their conductive and mechanical properties are poor, and the ink is easily scratched and peeled off. Therefore, it is necessary to find a new conductive medium to improve the comprehensive performance of conductive inks. Content...

Claims

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Application Information

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IPC IPC(8): C09D11/10
Inventor 林耀朋张旭吴军
Owner SUZHOU AITESI FURTHER MATERIALS CO LTD
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