CN106243836A - A kind of graphene conductive carbon slurry and preparation method thereof - Google Patents
A kind of graphene conductive carbon slurry and preparation method thereof Download PDFInfo
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- CN106243836A CN106243836A CN201610665350.9A CN201610665350A CN106243836A CN 106243836 A CN106243836 A CN 106243836A CN 201610665350 A CN201610665350 A CN 201610665350A CN 106243836 A CN106243836 A CN 106243836A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/52—Electrically conductive inks
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
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Abstract
The present invention provides a kind of graphene conductive carbon slurry, and including graphene conductive functional unit, solvent, auxiliary agent and resin bridging agent, described graphene conductive functional unit includes Graphene and conductive carbon material.Graphene conductive carbon of the present invention slurry is relatively stable, and owing to wherein comprising Graphene, electric conductivity is preferable；Owing to the electric conductivity of Graphene is preferable, in use, graphene conductive carbon slurry only needs less dosage just can obtain higher electric conductivity, and due to the minimizing of dosage, granule in graphene conductive carbon slurry also can correspondingly reduce, and makes this graphene conductive carbon slurry be more suitable for fine undersized circuit printing；It addition, Graphene can be easily made Nano grade, making print film layer thin and uniform and smooth, performance is the most excellent, saves conductive material in a large number.The invention also discloses the preparation method of a kind of graphene conductive carbon slurry.
Description
Technical field
The invention belongs to technical field of graphene, be more particularly to a kind of graphene conductive carbon slurry and preparation method thereof.
Background technology
Conductive carbon paste, is also called electrically conductive ink, and main printing on the substrate, is allowed to have conduction and static conductive ability,
It it is the critical material in the printed electronics such as printed circuit, intelligent label, flexible display device, sensor.Improve conductive oil
The performance of ink, will drive the development of electronic industry.Simultaneously along with the development of electronics technology, new technology and product are also to conduction
The performance of ink is had higher requirement, and raising performance, reduction cost are the targets that electrically conductive ink is constantly pursued.
Traditional electrically conductive ink is added to by conductive unit powder body substantially to be prepared composite and forms in polymer.Conduction
Functional unit is the component of most critical, mainly includes carbon, metal and complex three class.Gold, silver and copper paste printing ink have excellent
Electric conductivity, resistivity can reach 10-2-10-3Ωcm.Metal powder ink performance is good, but expensive, and silver also exists easily self
The defects such as migration, sulfuration, poor, the sintering process easily cracking of anti-scolding tin erosiveness.The meeting under air and water effect of copper paste printing ink
Producing oxide layer makes electric conductivity unstable.Carbon paste printing ink film layer is the most oxidizable, stable performance, acid and alkali resistance and chemical solution after solidification
Agent, the adhesive force of ink is strong, but resistivity is higher, and generally 102-10-1Ωcm.Metal current and traditional carbon paste printing ink are all
There are the pluses and minuses of self, for improving performance, the improvement of conducting function unit and exploration apply new conductive unit to be current
The development trend of electrically conductive ink research both at home and abroad.
Graphene is 2004, Univ Manchester UK physicist An Deliegaimu and Constantine Nuo Woxiao
Love, isolated a kind of planar crystalline material being made up of carbon atom from graphite, carbon atom forms honeybee with sp2 hydridization
The flat film of nido structure, its electron mobility can reach 15000cm2/ (v s), higher than CNT or silicon crystal,
And its resistivity only has 10-6Ω cm, more much lower than copper and silver, it is the material that resistivity is minimum the most in the world.High conductivity, carbon
The features such as the stability of material itself and nanometer layer structure all determine Graphene can be as the electrically conductive ink merit of high-quality
Energy unit style is for Graphene ink.Unlike metal, there is lamellar interface resistance as conductive material in Graphene.
Simple use Graphene is as conductive material, and expensive, cost is the highest.It is used alone conductive carbon paste, electric conductivity
Can not reach the most again requirement.So, use Graphene to mix with other conducting medium thus the method that improves electrocondution slurry
It it is a preferable technology path.But how good for Graphene is dispersed into slurry system and is used in combination into conductive carbon paste
For urgent need to solve the problem.
Summary of the invention
An object of the present invention is to provide a kind of cost relatively low and electric conductivity preferable graphene conductive carbon slurry.
A further object of the present invention is to provide a kind of stone printing high-quality circuit and being applicable to multiple typography
Ink alkene conductive carbon paste.
For realizing object above, the present invention provides a kind of graphene conductive carbon slurry, including graphene conductive functional unit, molten
Agent, auxiliary agent and resin bridging agent, described graphene conductive functional unit includes Graphene and conductive carbon material.
A kind of graphene conductive carbon slurry, including the graphene conductive functional unit of 5-80 weight portion, 10-90 weight portion molten
The resin bridging agent of agent, the auxiliary agent of 0.1-30 weight portion and 0-70 weight portion, described Graphene and the mass ratio of conductive carbon material
For 0.1:1 to 10:1.
In some embodiments, described conductive carbon material is selected from graphite, conductive black, acetylene black, furnace black, carbon fibre
One or more of peacekeeping CNT.
In some embodiments, described solvent is selected from water, alcohols solvent, fat hydrocarbon solvent, esters solvent, aromatic series
One or more in varsol, ketones solvent and ether solvent.
In some embodiments, described auxiliary agent is selected from dispersant, levelling agent, viscosifier, defoamer, stabilizer, anticorrosion
One or more in agent, thickening agent, cross-linking agent and film former.
In some embodiments, described resin bridging agent is selected from natural resin, synthetic resin and the one of modified resin
Or it is several.
In some embodiments, described natural resin is selected from epoxy selected from Colophonium, succinum and Lac, described synthetic resin
Resin, phenolic resin, polyester resin, organic siliconresin, fluorocarbon resin, unsaturated polyester resin, acrylic resin, alkyd tree
Fat, vinylite, synthetic cellulose, polyurethane resin and synthetic rubber, described modified resin selected from polyurethane modified epoxy,
Silicon-modified epoxy, silicon-modified epoxy, organosilicon-modified acrylic epoxy resin, modified phenolic, modified acroleic acid tree
Fat and modified alkyd resin.
The preparation method of a kind of graphene conductive carbon slurry, comprises the following steps:
The preparation of graphene conductive functional unit dispersion liquid
By solvent, Graphene, material with carbon element and dispersant, and stir 0.5-6h, ultrasonic disperse 1-10h, homogenizing 0-
12h, prepares graphene conductive functional unit dispersion liquid.
The preparation of graphene conductive slurry
Described graphene conductive functional unit dispersion liquid, solvent, auxiliary agent and resin bridging agent are mixed, and stirs 0.5-
6h, ultrasonic disperse 1-10h, grinding 0-12h, prepare graphene conductive carbon slurry.
It has the beneficial effect that graphene conductive carbon slurry prepared by the present invention is relatively stable, owing to wherein comprising Graphene, leads
Electrical property is preferable；Owing to the electric conductivity of Graphene is preferable, in use, graphene conductive carbon slurry only needs less dosage
Just can obtain higher electric conductivity, and due to the minimizing of dosage, the granule in graphene conductive carbon slurry also can correspondingly reduce,
This graphene conductive carbon slurry is made to be more suitable for fine undersized circuit printing；It addition, Graphene can be easily made Nano grade,
Making print film layer thin and uniform and smooth, performance is the most excellent, saves conductive material in a large number.
Detailed description of the invention
Embodiment 1
Prepare graphene conductive functional unit dispersion liquid
By 10g Graphene, 10g graphite, 30g water and 5g dispersant, and stir 1h, ultrasonic disperse 1h, homogenizing 0.5h,
Prepare the graphene conductive functional unit dispersion liquid being uniformly dispersed stable.
Prepare graphene conductive carbon slurry
Above-mentioned prepared graphene conductive functional unit dispersion liquid is mixed with 30g water, 5g stabilizer and 10g epoxy resin
Close, and be mixed uniformly by stirring 1h, ultrasonic disperse 1h, grinding 0.5h, lead through being packaged to be Graphene after the assay was approved
Electrical carbon paste printing ink.
The present embodiment prepare graphene conductive carbon slurry include 10g Graphene, 10g graphite, 60g water, 10g dispersant and
10g epoxy resin.
Embodiment 2
Prepare graphene conductive functional unit dispersion liquid
By 15g Graphene, 5g graphite, 40g water and 4g dispersant, and stir 1h, ultrasonic disperse 1h, homogenizing 0.5h,
Prepare the graphene conductive functional unit dispersion liquid being uniformly dispersed stable.
Prepare graphene conductive carbon slurry
Above-mentioned prepared graphene conductive functional unit dispersion liquid is mixed with 20g water, 8g stabilizer and 8g Lac, and leads to
Cross stirring 1h, ultrasonic disperse 1h, grinding 0.5h are mixed uniformly, are packaged to be graphene conductive carbon slurry oil through after the assay was approved
Ink.
The present embodiment prepare graphene conductive carbon slurry include 10g Graphene, 10g graphite, 60g water, 10g dispersant and
10g epoxy resin.
Embodiment 3
Prepare graphene conductive functional unit dispersion liquid
By 20g Graphene, 5g graphite, 35g water and 6g dispersant, and stir 1h, ultrasonic disperse 1h, homogenizing 0.5h,
Prepare the graphene conductive functional unit dispersion liquid being uniformly dispersed stable.
Prepare graphene conductive carbon slurry
Above-mentioned prepared graphene conductive functional unit dispersion liquid is mixed with 25g water, 3g stabilizer and 6g vinylite
Close, and be mixed uniformly by stirring 1h, ultrasonic disperse 1h, grinding 0.5h, lead through being packaged to be Graphene after the assay was approved
Electrical carbon paste printing ink.
The present embodiment prepare graphene conductive carbon slurry include 10g Graphene, 10g graphite, 60g water, 10g dispersant and
10g epoxy resin.
Above-described is only some embodiments of the present invention.To those skilled in the art, do not taking off
On the premise of the invention is conceived, it is also possible to some deformation and improvement, these broadly fall into protection scope of the present invention.
Claims (8)
1. a graphene conductive carbon slurry, it is characterised in that include that graphene conductive functional unit, solvent, auxiliary agent and resin are even
Connecing agent, described graphene conductive functional unit includes Graphene and conductive carbon material.
Graphene conductive carbon the most according to claim 1 is starched, it is characterised in that include the graphene conductive of 5-80 weight portion
The resin bridging agent of functional unit, the solvent of 10-90 weight portion, the auxiliary agent of 0.1-30 weight portion and 0-70 weight portion, described stone
The mass ratio of ink alkene and conductive carbon material is 0.1:1 to 10:1.
Graphene conductive carbon the most according to claim 1 and 2 starch, it is characterised in that described conductive carbon material selected from graphite,
One or more of conductive black, acetylene black, furnace black, carbon fiber and CNT.
Graphene conductive carbon the most according to claim 1 and 2 is starched, it is characterised in that described solvent is molten selected from water, alcohols
One or more in agent, fat hydrocarbon solvent, esters solvent, aromatic hydrocarbon solvent, ketones solvent and ether solvent.
Graphene conductive carbon the most according to claim 1 and 2 is starched, it is characterised in that described auxiliary agent is selected from dispersant, levelling
One or more in agent, viscosifier, defoamer, stabilizer, preservative, thickening agent, cross-linking agent and film former.
Graphene conductive carbon the most according to claim 1 and 2 is starched, it is characterised in that described resin bridging agent is selected from natural
One or more of resin, synthetic resin and modified resin.
Graphene conductive carbon the most according to claim 6 is starched, it is characterised in that described natural resin is selected from Colophonium, succinum
And Lac, described synthetic resin is selected from epoxy resin, phenolic resin, polyester resin, organic siliconresin, fluorocarbon resin, unsaturation
Polyester resin, acrylic resin, alkyd resin, vinylite, synthetic cellulose, polyurethane resin and synthetic rubber, described
Modified resin is selected from polyurethane modified epoxy, silicon-modified epoxy, silicon-modified epoxy, organosilicon-modified acrylic epoxy
Resin, modified phenolic, acrylic resin modified and modified alkyd resin.
8. the preparation method starched according to the graphene conductive carbon described in claim 1-7 any one claim, it is characterised in that
Comprise the following steps:
The preparation of graphene conductive functional unit dispersion liquid
By solvent, Graphene, material with carbon element and dispersant, and stir 0.5-6h, ultrasonic disperse 1-10h, homogenizing 0-12h, system
Obtain graphene conductive functional unit dispersion liquid.
The preparation of graphene conductive slurry
By described graphene conductive functional unit dispersion liquid, solvent, auxiliary agent and mixed with resin, and stir 0.5-6h, ultrasonic disperse
1-10h, grinding 0-12h, prepare graphene conductive carbon slurry.
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Cited By (26)
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| CN106752385A (en) * | 2017-01-11 | 2017-05-31 | 青岛瑞利特新材料科技有限公司 | A kind of Graphene modified water-soluble electrically conductive ink and preparation method thereof |
| CN106867316A (en) * | 2017-03-17 | 2017-06-20 | 青岛瑞利特新材料科技有限公司 | A kind of watersoluble plumbago alkene electrically conductive ink |
| CN106905817A (en) * | 2017-03-13 | 2017-06-30 | 王敏 | A kind of aqueous carbon nanometer electrical heating material of Graphene and preparation method thereof |
| CN107216745A (en) * | 2017-07-15 | 2017-09-29 | 佛山实瑞先导材料研究院（普通合伙） | A kind of waterborne flame retardant antibiotic conductive coating |
| CN107663672A (en) * | 2017-06-13 | 2018-02-06 | 绍兴标点纺织科技有限公司 | A kind of compound PAN fiber of graphene and preparation method |
| CN107731347A (en) * | 2017-09-29 | 2018-02-23 | 固力发电气股份有限公司 | Low resistance, anti-oxidant, anticorrosion Graphene powder conductive paste and preparation method thereof |
| CN107903713A (en) * | 2017-11-29 | 2018-04-13 | 北京旭碳新材料科技有限公司 | Highly conductive watersoluble plumbago alkene electrically conductive ink and preparation method thereof, composition |
| CN108039225A (en) * | 2017-12-13 | 2018-05-15 | 常州烯材碳材料科技有限公司 | Environment-friendly type low resistance graphene carbon fiber conductive carbon paste and preparation method thereof |
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| CN109280426A (en) * | 2018-11-21 | 2019-01-29 | 济南圣泉集团股份有限公司 | A kind of preparation method of electric heating ink and electric heating ink therefrom and application |
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| CN109749518A (en) * | 2017-11-08 | 2019-05-14 | 厦门泰启力飞电子科技有限公司 | A kind of dilute electrically conductive ink of graphite and preparation method thereof |
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| CN109749518A (en) * | 2017-11-08 | 2019-05-14 | 厦门泰启力飞电子科技有限公司 | A kind of dilute electrically conductive ink of graphite and preparation method thereof |
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| CN110662313A (en) * | 2018-06-29 | 2020-01-07 | 河北金雕新材料科技有限公司 | Preparation method of water-based graphene far-infrared conductive paste |
| CN110310762A (en) * | 2018-08-22 | 2019-10-08 | 苏州怡拓生物传感技术有限公司 | Modified graphene conductive carbon paste |
| CN109280426A (en) * | 2018-11-21 | 2019-01-29 | 济南圣泉集团股份有限公司 | A kind of preparation method of electric heating ink and electric heating ink therefrom and application |
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| CN110760236A (en) * | 2019-10-16 | 2020-02-07 | 刘佰臣 | High-thermal-conductivity coating and preparation method thereof |
| CN110835491A (en) * | 2019-11-16 | 2020-02-25 | 重庆绿涂腾科技有限公司 | Graphene and carbon nanotube composite anti-static floor coating and preparation method thereof |
| CN111278177A (en) * | 2019-12-13 | 2020-06-12 | 中航复材（北京）科技有限公司 | Preparation method of carbon material electric heating sheet |
| CN111278177B (en) * | 2019-12-13 | 2021-12-21 | 中航复材（北京）科技有限公司 | Preparation method of carbon material electric heating sheet |
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