Conductive ink based on graphene composite material and preparation method thereof

A composite material and conductive ink technology, applied in inks, household appliances, applications, etc., can solve the problems of unfavorable lamellar structure and large specific surface area, restrict the development of graphene conductive ink, and graphene is easy to agglomerate, etc., so as to improve the easy agglomeration. Difficult to disperse, outstanding substantive features, good electrical conductivity

Inactive Publication Date: 2015-06-10
山东利特纳米技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the sheet structure and large specific surface area of ​​graphene also have disadvantages. Due to the above characteristics, graphene is easy to agglomerate and difficult to disperse in the resin system, thus limiting the development of graphene conductive ink.

Method used

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  • Conductive ink based on graphene composite material and preparation method thereof

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Experimental program
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Embodiment 1

[0023] In the present embodiment, the number of mass parts of each raw material becomes: 1 part of carbon composite material of graphene composed of graphene and carbon black, 1 part of acrylic resin, by glycol methyl ether acetate: DBE: S150# by mass ratio It is 5 parts of mixed solvent mixed at 1:4:2, and 1 part of mixed auxiliary agent is mixed with defoamer: emulsifier: thickener at a mass ratio of 1:2:1.

[0024] The preparation steps of a kind of preparation method based on the conductive ink of graphene composite provided by the invention are as follows:

[0025] (a) Preparation of the carrier: mix the acrylic resin with the mixed solvent and put it in the reaction kettle, then place the reaction kettle in an oven at 80°C for 0.5h to completely dissolve the resin;

[0026] (b) Preparation of conductive paste: fully mix the carrier with the graphene carbon composite material and defoamer and then send it into the dispersion tank for stirring, wherein the weight of the gr...

Embodiment 2

[0030] In the present embodiment, the mass fraction of each raw material becomes: 2.7 parts of carbon composite materials of graphene composed of graphene and carbon black, 1 part of acrylic resin, by glycol methyl ether acetate: DBE: S150# by mass ratio It is 10 parts of mixed solvent mixed in 1:4:2, and 1 part of mixed auxiliary agent made of defoamer: emulsifier: thickener in a mass ratio of 1:2:1.

[0031] The preparation steps of a kind of preparation method based on the conductive ink of graphene composite provided by the invention are as follows:

[0032] (a) Preparation of the carrier: mix the acrylic resin with the mixed solvent and put it in the reaction kettle, then place the reaction kettle in an oven at 80°C for 0.5h to completely dissolve the resin;

[0033] (b) Preparation of conductive paste: fully mix the carrier with the graphene carbon composite material and defoamer and then send it into the dispersion tank for stirring, wherein the weight of the graphene c...

Embodiment 3

[0037] In the present embodiment, the mass fraction array of each raw material becomes: 6.3 parts of the carbon composite material of the graphene that graphene and acetylene black form, 10 parts of epoxy resins, by glycol methyl ether acetate: DBE: S150# by mass 30 parts of mixed solvent with a ratio of 1:4:2, and 4 parts of admixture mixed with thickener: leveling agent: wetting and dispersing agent at a mass ratio of 1:1:4.

[0038] The preparation steps of a kind of preparation method based on the conductive ink of graphene composite provided by the invention are as follows:

[0039] (a) Preparation of the carrier: Mix the epoxy resin with the mixed solvent and put it in the reaction kettle, then place the reaction kettle in an oven at 100°C for 5 hours to make the resin completely dissolve;

[0040] (b) Preparation of conductive paste: fully mix the carrier with the graphene carbon composite material and defoamer and then send it into the dispersion tank for stirring, whe...

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Abstract

The invention discloses conductive ink based on a graphene composite material and a preparation method thereof. The conductive ink is prepared from the following components in parts by mass: 1-30 parts of a functional graphene composite material, 1-70 parts of a resin coupling agent, 5-60 parts of a solvent and 1-40 parts of an auxiliary. According to the method, graphene is modified into a functional graphene composite material, low density and high conductivity of graphene can be maintained, the situation that graphene is easily agglomerated and difficult to disperse can be improved, and then affinity between conductive filler and a resin connecting material is improved, so that the high-conductivity conductive ink under a low-content conductive agent can be successfully prepared. The conductive ink is simple in preparation method, stable in system, good in conductivity and easy to print, has a flexible and abrasion-resistance membrane layer, can be widely applied to radio frequency tags, intelligent package, film switches, conductive circuits, sensors and other light flexible electronic products, and has a huge market prospect.

Description

technical field [0001] The invention relates to a conductive ink, in particular to a conductive ink based on a graphene composite material and a preparation method thereof. Background technique [0002] Conductive ink is an ink made of conductive materials. It is widely used in printing conductive points and conductive circuits. It has a certain degree of conductive properties. It mainly includes gold-based conductive inks, silver-based conductive inks, copper-based conductive inks, and carbon-based conductive inks. etc., and these conductive inks have reached practical use. Conductive ink is composed of conductive fillers, binders, solvents and additives. The conductive fillers are usually gold powder, graphite, carbon black (special conductive carbon black is now available), carbon fiber, nickel powder, etc. The binder is mainly Epoxy resin, alkyd resin, acrylic resin, polyurethane resin, melamine formaldehyde resin, phenolic resin, vinyl chloride-vinyl acetate copolymer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/52C09D11/107C09D11/102C09D11/105C09D11/103C09D11/104C09D11/03
CPCC09D11/52C09D11/03C09D11/102C09D11/103C09D11/104C09D11/105C09D11/107
Inventor 宋肖肖孙明娟王圆圆
Owner 山东利特纳米技术有限公司
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