CN108641426A - Aqueous, environmental protective conductive coating of graphene-containing and preparation method thereof - Google Patents
Aqueous, environmental protective conductive coating of graphene-containing and preparation method thereof Download PDFInfo
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- CN108641426A CN108641426A CN201810578079.4A CN201810578079A CN108641426A CN 108641426 A CN108641426 A CN 108641426A CN 201810578079 A CN201810578079 A CN 201810578079A CN 108641426 A CN108641426 A CN 108641426A
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- graphene
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Classifications
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
- C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
Abstract
The present invention relates to aqueous, environmental protective conductive coatings of a kind of graphene-containing and preparation method thereof, the aqueous, environmental protective conductive coating is according to the mass fraction, including 20 70 parts of film forming matter, 1 10 parts of graphene, 0.5 40 parts of charcoal system conductive filler, 0.5 5 parts of coalescents, 0.1 5 parts of auxiliary agent, 1 20 parts of deionized water；Coating pH value is 79, and viscosity is 50 150mpa.s.Its preparation process is：It is prepared by graphene aqueous dispersions；Premix；It is sanded；It is let down；Encapsulation.The aqueous, environmental protective conductive coating of graphene-containing of the present invention has the characteristics that high adhesion force, environment friendly and pollution-free.
Description
Technical field
The present invention relates to aqueous, environmental protective conductive coatings of a kind of graphene-containing and preparation method thereof, belong to water paint neck
Domain.
Background technology
The all trades and professions such as the demand for development oil of new era, chemical industry, medical treatment increasingly tend to mechanization and electronization, must
It will make the harm of electrostatic and electromagnetic radiation pollution in society increasingly domination.Electrostatic is easy in metal and nonmetallic materials
Surface is gathered, and gently then causes the instrument and equipment interruption of service, heavy then will puncture electronic component, causes to shock by electricity, fire or explosion etc.
Accident.Electromagenetic wave radiation can not only influence electronic equipment normal use, while can also cause the leakage of information, it is often more important that meeting
Harm is brought to the health of people.Now, electromagenetic wave radiation oneself become after noise pollution, air pollution, water pollution
Threaten the fourth-largest public hazards of human survival safety.Therefore, there is an urgent need for the technologies of a kind of energy while antistatic and anti-electromagnetic-radiation in the industry.
Currently, the technical method of antistatic and anti-electromagnetic-radiation is more, wherein the use of conductive coating spraying being a kind of construction
Convenient, low-cost method, in recent decades, in a variety of military and civilian such as electronics, electric appliance, aviation, chemical industry, printing
It is applied in industrial circle.Conductive coating forms conductive layer on the surface of ground, and ground is made to have conduction electric current and exclusion
The ability for accumulating electrostatic charge, to play the role of preventing electromagnetic interference.And conductive coating have it is superior it is antistatic and
Capability of electromagnetic shielding easily can be sprayed or be brushed in variously-shaped material surface, form electromagnetic shielding conductive layer, to
Make material achieve the purpose that shield electromagnetic wave, be with modern science and technology and a kind of features for developing rapidly apply
Material.
Conductive coating is divided into intrinsically conducting coating and addition type conductive coating from its mechanism of action.Conductive coating at present
There are several big problems：Used conductive filler is generally noble metal, and cost is high；Solvent for use is organic solvent, volatilization
Noxious material is generated, is detrimental to health, causes environmental pollution；Film forming matter generally uses organic polymer, although performance is steady
The fixed film forming for still needing to have made it have by organic solvent and preferable compatibility.So aqueous ring of the present invention
It protects conductive coating and solves the disadvantage that current conductive coating, while introducing graphene new material and carbon filler and substitute noble metal and doing
Conductive filler reduces the cost of conducting particles, and Diamond Search discharge is environment-protecting and non-poisonous, has filled up the sky of China's conductive coating feature of environmental protection
In vain.
Invention content
The technical problem to be solved in the present invention is to provide a kind of aqueous, environmental protective conductive coating of graphene-containing and its preparation sides
Method, the aqueous, environmental protective conductive coating is environment-protecting and non-poisonous, and high conductivity, solid content is low, facilitates storage and transportation.
The present invention solve its technical problem the technical solution adopted is that：
A kind of aqueous, environmental protective conductive coating of graphene-containing, according to the mass fraction, including 20-70 parts of film forming matter, graphene 1-
10 parts, conductive filler 0.5-40 parts of charcoal system, 0.5-5 parts of coalescents, 0.1-5 parts of auxiliary agent, 1-20 parts of deionized water；Coating pH value
For 7-9, viscosity 50-150mpa.s.
Further, preferred embodiment of the present invention is：
The 2-10 layer graphene aqueous dispersions of doping N, S, P element that the graphene is prepared for chemistry redox method, Gu
Containing for 0.5-5wt%, piece diameter is less than 50 μm, and thickness is less than 6nm.
The charcoal system conductive filler includes graphite, carbon crystal, carbon fiber, carbon nanotube, amorphous carbon, activated carbon, section's qin
One or more of black, acetylene black, grain size are 200-2000 mesh.
The film forming matter is water glass solution, aqueous epoxy resins, aqueous polyurethane, water-based acrylic resin lotion
In one kind.
The coalescents are in SBR emulsion, polytetrafluoroethylene (PTFE) water slurry, Kynoar water slurry
It is one or more of.
The auxiliary agent is one or more of dispersant, anti-settling agent, thickener, levelling agent, antifoaming agent, waterproofing agent.
The preparation method of the aqueous, environmental protective conductive coating of above-mentioned graphene-containing, including following operating procedure：
（1）It is prepared by graphene aqueous dispersions
Graphene aqueous dispersions are made through ultrasound, emulsification means with homemade graphene aqueous solution, Gu containing being 0.5-5wt%；
（2）Premix
Graphene aqueous dispersions, conductive filler are added in film forming matter, is mixed evenly；
（3）It is sanded
By step（2）Premix be sanded by sand mill, make its fineness be less than 5 μm；
（4）It is let down
In step（3）Auxiliary agent and coalescents are added in obtained solution, are uniformly mixed, deionized water adjusting coating is added
Viscosity makes its viscosity reach 50-150mpa.s；
（5）By step（4）Obtained coating is filtered by 100 mesh sieve, encapsulation.
Using the present invention of above-mentioned technical proposal, compared with prior art, advantageous effect is：
Aqueous, environmental protective conductive coating of the present invention solves the disadvantage that current conductive coating, using inorganic matter waterglass conduct
Film forming matter, organic solvent-free introduce, and use deionized water for system solvent, while introducing graphene new material and carbon filler replaces
Conductive filler is done for noble metal, reduces the cost of conducting particles, Diamond Search discharge is environment-protecting and non-poisonous, has filled up China's conductive coating
The blank of the feature of environmental protection.
Specific implementation mode
The present invention is further elaborated with reference to embodiments, but embodiment does not form any restrictions to the present invention.
Embodiment 1：
A kind of preparation method of the aqueous, environmental protective conductive coating of graphene-containing, carries out as follows：
（1）The preparation of graphene aqueous dispersions
Graphene aqueous dispersions are made through dispersions means such as ultrasound, emulsifications with homemade graphene aqueous solution, Gu containing being 1wt%；
（2）Premix
Graphene aqueous dispersions 1wt% is sequentially added in waterglass, graphite powder 40wt%, acetylene black 2wt% are stirred；
（3）It is sanded
By step（2）Premix be sanded by sand mill, make its fineness be less than 5 μm；
（4）It is let down
In step（3）SBR emulsion 0.5wt%, dispersant 0.1wt%, thickener 0.2wt%, stream are added in obtained solution
Flat agent 0.3wt%, antifoaming agent 0.2wt% are uniformly mixed, and deionized water adjusting coating viscosity is added, its viscosity is made to reach 50-
150mpa.s；
（5）By step（4）Obtained coating is filtered by 100 mesh sieve, encapsulation.
Embodiment 2：
A kind of preparation method of the aqueous, environmental protective conductive coating of graphene-containing, carries out as follows：
（1）The preparation of graphene aqueous dispersions
Graphene aqueous dispersions are made through dispersions means such as ultrasound, emulsifications with homemade graphene aqueous solution, Gu containing being 2wt%；
（2）Premix
Graphene aqueous dispersions 5wt% is sequentially added in waterglass, carbon crystal 5wt%, acetylene black 2.5wt% are stirred；
（3）It is sanded
By step（2）Premix be sanded by sand mill, make its fineness be less than 5 μm；
（4）It is let down
In step（3）Addition polytetrafluoroethylene (PTFE) water slurry 1.5wt%, dispersant 0.2wt%, thickener in obtained solution
0.3wt%, levelling agent 0.2wt%, antifoaming agent 0.2wt% are uniformly mixed, and deionized water adjusting coating viscosity is added, and keep it viscous
Degree reaches 50-150mpa.s；
（5）By step（4）Obtained coating is filtered by 100 mesh sieve, encapsulation.
Embodiment 3：
A kind of preparation method of the aqueous, environmental protective conductive coating of graphene-containing, carries out as follows：
（1）The preparation of graphene aqueous dispersions
Graphene aqueous dispersions are made through dispersions means such as ultrasound, emulsifications with homemade graphene aqueous solution, Gu containing being 3wt%；
（2）Premix
Graphene aqueous dispersions 6wt%, amorphous carbon 20wt%, Ketjen black 5wt% are sequentially added in waterglass, are sufficiently stirred
It is even；
（3）It is sanded
By step（2）Premix be sanded by sand mill, make its fineness be less than 5 μm；
（4）It is let down
In step（3）SBR emulsion 5wt%, dispersant 0.3wt%, thickener 0.3wt%, levelling are added in obtained solution
Agent 0.2wt%, antifoaming agent 0.1wt%, is uniformly mixed, and deionized water adjusting coating viscosity is added, its viscosity is made to reach 50-
150mpa.s；
（5）By step（4）Obtained coating is filtered by 100 mesh sieve, encapsulation.
It the above is only the preferred embodiment of the present invention, it is noted that although having made in detail to the present invention with reference to preferred embodiment
Describe in detail it is bright, to those of ordinary skill in the art, any improvement in the present invention, in product of the present invention each raw material etc.
Effect replacement, the modification etc. of specific implementation mode, all fall in protection scope of the present invention.
Claims (7)
1. a kind of aqueous, environmental protective conductive coating of graphene-containing, which is characterized in that according to the mass fraction, including film forming matter 20-
70 parts, 1-10 parts of graphene, conductive filler 0.5-40 parts of charcoal system, 0.5-5 parts of coalescents, 0.1-5 parts of auxiliary agent, deionized water 1-
20 parts；Coating pH value is 7-9, viscosity 50-150mpa.s.
2. the aqueous, environmental protective conductive coating of graphene-containing as described in claim 1, which is characterized in that the graphene is to change
Doping N, S of oxidation-reduction method preparation, the 2-10 layer graphene aqueous dispersions of P element are learned, Gu it is 0.5-5wt% to contain, piece diameter is less than
50 μm, thickness is less than 6nm.
3. the aqueous, environmental protective conductive coating of graphene-containing as described in claim 1, which is characterized in that the charcoal system conduction is filled out
Material includes one or more of graphite, carbon crystal, carbon fiber, carbon nanotube, amorphous carbon, activated carbon, Ketjen black, acetylene black,
Grain size is 200-2000 mesh.
4. the aqueous, environmental protective conductive coating of graphene-containing as described in claim 1, which is characterized in that the film forming matter is
One kind in water glass solution, aqueous epoxy resins, aqueous polyurethane, water-based acrylic resin lotion.
5. the aqueous, environmental protective conductive coating of graphene-containing as described in claim 1, which is characterized in that the coalescents are fourth
One or more of benzene rubber latex, polytetrafluoroethylene (PTFE) water slurry, Kynoar water slurry.
6. the aqueous, environmental protective conductive coating of graphene-containing as described in claim 1, which is characterized in that the auxiliary agent is dispersion
One or more of agent, anti-settling agent, thickener, levelling agent, antifoaming agent, waterproofing agent.
7. a kind of preparation method of such as aqueous, environmental protective conductive coating of claim 1 to 6 any one of them graphene-containing, special
Sign is, including following operating procedure：
（1）It is prepared by graphene aqueous dispersions
Graphene aqueous dispersions are made through ultrasound, emulsification means with homemade graphene aqueous solution, Gu containing being 0.5-5wt%；
Premix
Graphene aqueous dispersions, conductive filler are added in film forming matter, is mixed evenly；
It is sanded
By step（2）Premix be sanded by sand mill, make its fineness be less than 5 μm；
（4）It is let down
In step（3）Auxiliary agent and coalescents are added in obtained solution, are uniformly mixed, deionized water adjusting coating is added
Viscosity makes its viscosity reach 50-150mpa.s；
（5）By step（4）Obtained coating is filtered by 100 mesh sieve, encapsulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810578079.4A CN108641426A (en) | 2018-06-07 | 2018-06-07 | Aqueous, environmental protective conductive coating of graphene-containing and preparation method thereof |
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| CN201810578079.4A CN108641426A (en) | 2018-06-07 | 2018-06-07 | Aqueous, environmental protective conductive coating of graphene-containing and preparation method thereof |
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| CN108641426A true CN108641426A (en) | 2018-10-12 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109553793A (en) * | 2018-11-27 | 2019-04-02 | 湖南国盛石墨科技有限公司 | A kind of flexibility PA graphene electromagnetic shielding material and preparation method thereof |
| CN111439953A (en) * | 2020-04-01 | 2020-07-24 | 南京南大波平电子信息有限公司 | Functional water-based wave-absorbing coating and preparation method thereof |
| CN112574624A (en) * | 2020-12-12 | 2021-03-30 | 安徽新辰光学新材料有限公司 | High electromagnetic shielding film and preparation method thereof |
| WO2022179332A1 (en) * | 2021-02-26 | 2022-09-01 | 郑州新世纪材料基因组工程研究院有限公司 | Electric infrared heating film and manufacturing method therefor, and electric infrared heating apparatus |
| CN116200099A (en) * | 2023-02-28 | 2023-06-02 | 中德新亚建筑材料有限公司 | Waterborne antistatic surface coating based on graphene and carbon nano tube and preparation method thereof |
| CN117229703A (en) * | 2023-09-27 | 2023-12-15 | 国网浙江省电力有限公司电力科学研究院 | Conductive coating and preparation method and application thereof |
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| CN103130216A (en) * | 2013-03-25 | 2013-06-05 | 四川大学 | Method for large-scale preparation of oxidized graphene and selective adsorption of thorium in water |
| CN105505161A (en) * | 2015-09-30 | 2016-04-20 | 无锡同创石墨烯应用科技有限公司 | Graphite-modified water-based conductive coating composition and preparation method thereof |
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2018
- 2018-06-07 CN CN201810578079.4A patent/CN108641426A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103130216A (en) * | 2013-03-25 | 2013-06-05 | 四川大学 | Method for large-scale preparation of oxidized graphene and selective adsorption of thorium in water |
| CN105505161A (en) * | 2015-09-30 | 2016-04-20 | 无锡同创石墨烯应用科技有限公司 | Graphite-modified water-based conductive coating composition and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109553793A (en) * | 2018-11-27 | 2019-04-02 | 湖南国盛石墨科技有限公司 | A kind of flexibility PA graphene electromagnetic shielding material and preparation method thereof |
| CN109553793B (en) * | 2018-11-27 | 2021-10-26 | 湖南国盛石墨科技有限公司 | Flexible PA graphene electromagnetic shielding material and preparation method thereof |
| CN111439953A (en) * | 2020-04-01 | 2020-07-24 | 南京南大波平电子信息有限公司 | Functional water-based wave-absorbing coating and preparation method thereof |
| CN112574624A (en) * | 2020-12-12 | 2021-03-30 | 安徽新辰光学新材料有限公司 | High electromagnetic shielding film and preparation method thereof |
| WO2022179332A1 (en) * | 2021-02-26 | 2022-09-01 | 郑州新世纪材料基因组工程研究院有限公司 | Electric infrared heating film and manufacturing method therefor, and electric infrared heating apparatus |
| CN116200099A (en) * | 2023-02-28 | 2023-06-02 | 中德新亚建筑材料有限公司 | Waterborne antistatic surface coating based on graphene and carbon nano tube and preparation method thereof |
| CN117229703A (en) * | 2023-09-27 | 2023-12-15 | 国网浙江省电力有限公司电力科学研究院 | Conductive coating and preparation method and application thereof |
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Application publication date: 20181012 |