CN107779085A - A kind of graphene water-based electric heating coating and preparation method thereof - Google Patents
A kind of graphene water-based electric heating coating and preparation method thereof Download PDFInfo
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- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- 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
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Abstract
The present invention relates to new electrically heating Material Field, relates in particular to a kind of graphene water-based electric heating coating and preparation method thereof.The coating includes following component：0.5 ~ 2.5wt% of mixture of 40 ~ 60wt% of water-base resin, 3~15wt% of nano-graphene, calcium sulfate crystal whiskers and rilanit special, 0.5 ~ 1.5%wt% of polyaniline, 0.5 ~ 1.5wt% of polythiophene, 0.5 ~ 1.5wt% of levelling agent, 30 ~ 40wt% of 0.5 ~ 1.5wt% of defoamer and water；Above constituent mass fraction sum is 100%.The present invention adds the mixture of calcium sulfate crystal whiskers and rilanit special in coating, nano-graphene can be prevented to reunite in the solution, and the bad and conductive, heat conduction network of graphene sheet layer overlap joint can be avoided the occurrence of and form incomplete defect, and then the electric conductivity and heating property of raising product.
Description
Technical field
The present invention relates to new electrically heating Material Field, relates in particular to a kind of graphene water-based electric heating coating and its system
Preparation Method.
Background technology
Heating System of Electric radiant Heating Film, it is different from using radiator, air-conditioning, radiator as the point heating system of representative and with hair
Electric heating cable is the wire type heating system of representative, the low-carbon heating high-tech that formula heating field is researched and developed using modern aerospace flight technology in face
Product.
Electric heating heating film principle be product in the presence of electric field, carbon molecules in heater group produces " Brownian movement ",
Violent friction and shock occur between carbon molecules, caused heat energy is externally transmitted in the form of far infrared radiation and convection current, its
The conversion ratio of electric energy and heat energy is up to more than 98%.The effect of carbon molecules is brought rapidly up system surfaces.Electric radiant Heating Film is warmed up into heating system
System be arranged on wall () on face, heat energy will continuously be evenly transferred to each corner in room.Why is Electric radiant Heating Film
Space can be played a part of being brought rapidly up, in that the input of its 100% electric energy is efficiently converted to more than 66%
Far infrared radiation energy and 33% convection current heat energy.Policy guidance of the Electric radiant Heating Film because meeting emission reduction low-carbon, its development prospect are wide.
The core heater of Electric radiant Heating Film is electric-heating coatings, and the quality of its quality directly determines the product capability of Electric radiant Heating Film.Mesh
Electric radiant Heating Film on preceding domestic market the coating such as starches using carbon crystal, carbon more, and it is serious power attenuation to be present, production and application VOC（Volatility
Organic compound）The critical defects such as discharge.
The A of CN 107236382 disclose a kind of water-based electric heating coating composition and water-based electric heating coating and its preparation side
Method and the Electric radiant Heating Film being prepared by it.The water-based electric heating coating composition contains aqueous dispersion resin, CNT, stone
Black alkene and nano carbon black, wherein, the aqueous dispersion resin, the CNT, the graphene and the nano carbon black
The weight ratio of content is 1:0.09-0.4:0.08-0.3:0.1-0.7.During Electric radiant Heating Film is prepared by water-based electric heating coating,
By by CNT, graphene and nano carbon black Application of composite, three-dimensional conductive network being built in heating layer, is fundamentally solved
Certainly the problems such as Electric radiant Heating Film power attenuation, production and application discharge.But have a disadvantage in that graphene and nano carbon black are in water paint
Middle bad dispersibility, easily reunite, so as to influence the performances such as conduction.
The content of the invention
It is an object of the invention to solve the above-mentioned problems in the prior art, there is provided a kind of graphene water-based electric heating film
Coating and preparation method thereof.The coating of the present invention is coated in heater surface so that heater has waterproof, protecting against shock, resistance to
The characteristics such as high temperature, insulation, thermal conductivity factor be higher.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of graphene water-based electric heating coating, including following component：40 ~ 60wt% of water-base resin, nano-graphene 3~
0.5 ~ 2.5wt% of mixture of 15wt%, calcium sulfate crystal whiskers and rilanit special, 0.5 ~ 1.5%wt% of polyaniline, polythiophene 0.5 ~
30 ~ 40wt% of 1.5wt%, 0.5 ~ 1.5wt% of levelling agent, 0.5 ~ 1.5wt% of defoamer and water；Above constituent mass fraction sum is
100%。
The water-base resin is waterborne organic silicon resin, aqueous epoxy resins or waterborne polyurethane resin.
The particle diameter of the nano-graphene is less than 100nm.
The weight ratio of the calcium sulfate crystal whiskers and rilanit special is 2:1.
Described levelling agent is BYK-333, and described defoamer is BD-304.
A kind of method of the graphene water-based electric heating coating prepared described in as above any one：Water-base resin and water are first mixed
Close, form mixed solution；Then toward addition nano-graphene powder in mixed solution, it is dispersed with stirring uniformly；Then it is molten toward mixing
The mixture and defoamer of polyaniline, polythiophene, levelling agent, calcium sulfate crystal whiskers and rilanit special are continuously added in liquid, and is filled
Divide and be uniformly mixing to obtain mixed solution, mixed solution is placed in ball mill and carries out ball milling, ball milling speed is 400~600 r/
Min, Ball-milling Time are 4~6 hours.
Graphene is a kind of New Two Dimensional carbon material, and each carbon atom is sp2 hydridization, and contributes a remaining p track
On electronically form big pi bond, in graphene under potential role, carrier is near dirac point with dirac fermion
Characteristic, carrier can height delocalization, therefore with excellent conduction, thermal conductivity, be the electrical conductivity highest material being currently known
Material, individual layer theoretical resistivity about 10-6 Ω cm, and most thin (0.34nm), most hard sheet nano material in the world, make
Added for a kind of exothermic material, a kind of conductive network connection is easily formed in Electric radiant Heating Film, it is only necessary to a small amount of graphene is added,
With regard to good conductive effect can be reached, very little is influenceed on the structure of film-forming carrier, reduces production, the difficulty of manufacture, also causes
The electric conductivity of heater has higher stability.But graphene is easily reunited, the electric conductivity of heater is influenceed.
Compared with prior art, it is an advantage of the invention that：
1）The present invention is using calcium sulfate crystal whiskers and the mixture of rilanit special（Weight ratio is 2:1）Point as nano-graphene
Powder, graphene can be reduced and reunited in the solution, and graphene sheet layer can be avoided the occurrence of and overlap bad and conductive, thermal conductive network
Network forms incomplete defect, and then improves the electric conductivity and heating property of product；
2）The present invention adds polyaniline, polythiophene in coating, and both of which is conducting polymer composite, has metal and plastics
Two characteristics, electric conductivity and antiseptic property are excellent, and addition of both materials in coating greatly improves the electric conductivity of coating
And anti-corrosive properties；
3）The coating of the present invention is using water-base resin as binding agent, organic solvent-free addition, in the absence of VOC emission problem, peace
Loopful is protected；By the present invention coating be coated in heater surface so that heater have waterproof, protecting against shock, high temperature resistant, insulation,
The characteristics such as thermal conductivity factor is higher.
Embodiment
For the further open rather than limitation present invention, below in conjunction with example, the present invention is described in further detail.
Embodiment 1
A kind of graphene water-based electric heating coating, waterborne organic silicon resin 52.7wt%, nano-graphene 3.3wt%, calcium sulfate are brilliant
Must be with the mixture 1.0wt%, polyaniline 1.0%wt%, polythiophene 1.0wt% of rilanit special, levelling agent 0.5wt%, defoamer
0.5wt% and water 40wt%；Above constituent mass fraction sum is 100%.
Preparation method is：First by 52.7g waterborne organic silicon resin（H-900）Mixed with 40 g water to be formed
Mixed solution；3.3g nano-graphene powder (particle diameter 100nm) is taken afterwards in the mixed solution, is stirred 1 minute
Afterwards, the dispersant of 1g nano-graphene is added（The mixture of calcium sulfate crystal whiskers and rilanit special, weight ratio are 2：1）、1g
Polyaniline, 1g polythiophene, levelling agent（BYK-333）And defoamer（BD-304）Each 0.5g fills in the mixed solution
Divide and be uniformly mixing to obtain mixed solution.Finally the mixed solution is placed in ball mill and is ground to obtain graphene water-based electric heating
Coating, wherein grinding rate are 400r/min, milling time is 6 hours, pour out ground coating seal up for safekeeping it is stand-by.
Embodiment 2
A kind of graphene water-based electric heating coating, aqueous epoxy resins 52.0wt%, nano-graphene 4.5wt%, calcium sulfate crystal whiskers
With the mixture 2.0wt% of rilanit special, polyaniline 1.5wt%, polythiophene 1.5wt%, levelling agent 1.5wt%, defoamer
2.0wt% and water 35wt%；Above constituent mass fraction sum is 100%.
Preparation method is：First by 52.0g aqueous epoxy resins（E44）Mixed with 35g water to form mixing
Solution；4.5g nano-graphene powder (particle diameter 100nm) is taken afterwards in the mixed solution, after stirring 1 minute, adds 2g
Nano-graphene dispersant（The mixture of calcium sulfate crystal whiskers and rilanit special, weight ratio are 2:1）, 1.5g polyphenyl
Amine, 1.5g polythiophene, levelling agent（BYK-333）1.5g and defoamer（BD-304）2 g are fully stirred in the mixed solution
Mix and uniformly obtain mixed solution., finally the mixed solution, which is placed in ball mill, is ground to obtain the nano-graphene of the present invention
Heat radiation coating, wherein grinding rate are 400r/min, milling time is 6 hours, pour out ground coating seal up for safekeeping it is stand-by.
Embodiment 3
A kind of graphene water-based electric heating coating, waterborne polyurethane resin 46.5wt%, nano-graphene 7.0wt%, calcium sulfate are brilliant
Must be with the mixture 2.0wt%, polyaniline 1.0wt%, polythiophene 1.5wt% of rilanit special, levelling agent 1.0wt%, defoamer
1.0wt% and water 40wt%；Above constituent mass fraction sum is 100%.
Preparation method is：First by 46.5g waterborne polyurethane resin（CS1600）Mixed with 40g water to be formed
Mixed solution；7g nano-graphene powder (particle diameter 100nm) is taken afterwards in the mixed solution, after stirring 1 minute,
The dispersant of the nano-graphene of addition 2.0（The mixture of calcium sulfate crystal whiskers and rilanit special, weight ratio are 2:1）、1.0g
Polyaniline, 1.5g polythiophene, levelling agent（BYK-333）And defoamer（BD-304）Each 1.0g in the mixed solution, and
Stir to obtain mixed solution.Finally the mixed solution, which is placed in ball mill, is ground to obtain the nanometer stone of the present invention
Black alkene heat radiation coating, wherein grinding rate are 400 r/min, milling time is 6 hours.Pour out ground coating and seal up for safekeeping and treat
With.
Embodiment 4
A kind of graphene water-based electric heating coating, waterborne organic silicon resin 42.0wt%, nano-graphene 15.0wt%, calcium sulfate are brilliant
Must be with the mixture 2.0wt%, polyaniline 1.0wt%, polythiophene 1.0wt% of rilanit special, levelling agent 0.5wt%, defoamer
0.5wt% and water 38wt%；Above constituent mass fraction sum is 100%.
Preparation method is：First by 42.0g waterborne organic silicon resin（H-900）With mixing to be formed for 38g water
Mixed solution；15g nano-graphene powder (particle diameter 100nm) is taken afterwards in the mixed solution, after stirring 1 minute,
Add the dispersant of 2.0g nano-graphene（The mixture of calcium sulfate crystal whiskers and rilanit special, weight ratio are 2:1）、1.0g
Polyaniline, 1.0g polythiophene, levelling agent（BYK-333）And defoamer（BD-304）Each 0.5g in the mixed solution, and
Stir to obtain mixed solution.Finally the mixed solution, which is placed in ball mill, is ground to obtain the nanometer stone of the present invention
Black alkene heat radiation coating, wherein grinding rate are 400 r/min, milling time is 6 hours, pour out ground coating and seal up for safekeeping and treat
With.
Embodiment 5
A kind of graphene water-based electric heating coating, aqueous epoxy resins 48.5wt%, nano-graphene 15.0wt%, calcium sulfate crystal whiskers
With the mixture 1.5wt% of rilanit special, polyaniline 1.5wt%, polythiophene 0.5wt%, levelling agent 1.5wt%, defoamer
1.5wt% and water 30wt%；Above constituent mass fraction sum is 100%.
Its preparation method is：First by 48.5g aqueous epoxy resins（E44）Mixed with 30g water to form mixing
Solution；15g nano-graphene powder (particle diameter 100nm) is taken afterwards in the mixed solution, after stirring 1 minute, addition
The dispersant of 1.5g nano-graphene（The mixture of calcium sulfate crystal whiskers and rilanit special, weight ratio are 2:1）, 1.5g it is poly-
Aniline, 0.5g polythiophene, levelling agent（BYK-333）And defoamer（BD-304）Each 1.5g is in the mixed solution, and fully
It is uniformly mixing to obtain mixed solution.Finally the mixed solution, which is placed in ball mill, is ground to obtain the nano-graphene of the present invention
Heat radiation coating, wherein grinding rate are 400r/min, milling time is 6 hours, pour out ground coating seal up for safekeeping it is stand-by.
Embodiment 6
A kind of graphene water-based electric heating coating, waterborne polyurethane resin 43wt%, nano-graphene 12.0wt%, calcium sulfate crystal whiskers
With the mixture 0.5wt% of rilanit special, polyaniline 1.5wt%, polythiophene 1.0wt%, levelling agent 1.0wt%, defoamer
1.0wt% and water 40wt%；Above constituent mass fraction sum is 100%.
First by 42 g waterborne polyurethane resin（CS1600）Mixed with 40 g water to form mixed solution；
12.0g nano-graphene powder (particle diameter 100nm) is taken afterwards in the mixed solution, after stirring 1 minute, addition
The dispersant of 0.5g nano-graphene（The mixture of calcium sulfate crystal whiskers and rilanit special, weight ratio are 2:1）, 1.5g it is poly-
Aniline, 1.0g polythiophene, levelling agent（BYK-333）And defoamer（BD-304）Each 1.0g finally should in the mixed solution
Mixed solution, which is placed in ball mill, to be ground to obtain the nano-graphene heat radiation coating of the present invention, and wherein grinding rate is 400
R/min, milling time are 6 hours.Pour out ground coating seal up for safekeeping it is stand-by.
Comparative example 1
A kind of graphene water-based electric heating coating, waterborne polyurethane resin 46.5wt%, nano-graphene 7.0wt%, polyaniline
1.0wt%, polythiophene 1.5wt%, levelling agent 1.0wt%, defoamer 1.0wt% and water 42wt%；Above constituent mass fraction sum is
100%。
Preparation method is：First by 46.5g waterborne polyurethane resin（CS1600）Mixed with 42g water to be formed
Mixed solution；7g nano-graphene powder (particle diameter 100nm) is taken afterwards in the mixed solution, ultrasonic disperse 5 minutes
Afterwards, 1.0g polyaniline, 1.5g polythiophene, levelling agent are added（BYK-333）And defoamer（BD-304）Each 1.0g is mixed in this
Close in solution, and stir to obtain mixed solution.Finally the mixed solution, which is placed in ball mill, is ground to obtain this
The nano-graphene heat radiation coating of invention, wherein grinding rate are 400 r/min, milling time is 6 hours.Pour out ground
Coating is sealed up for safekeeping stand-by.
Following table is embodiment 1-6, the performance of nano-graphite water-based electric heating coating prepared by comparative example 1 is contrasted,
Its data such as following table parameter：
Presently preferred embodiments of the present invention is the foregoing is only, all equivalent changes done according to scope of the present invention patent are with repairing
Decorations, it should all belong to the covering scope of the present invention.
Claims (6)
- A kind of 1. graphene water-based electric heating coating, it is characterised in that：Including following component：40 ~ 60wt% of water-base resin,0.5 ~ 2.5wt% of mixture of 3~15wt% of nano-graphene, calcium sulfate crystal whiskers and rilanit special, polyaniline 0.5 ~ 30 ~ 40wt% of 1.5%wt%, 0.5 ~ 1.5wt% of polythiophene, 0.5 ~ 1.5wt% of levelling agent, 0.5 ~ 1.5wt% of defoamer and water；Above group It is 100% to divide mass fraction sum.
- 2. graphene water-based electric heating coating according to claim 1, it is characterised in that：The water-base resin has to be water-based Machine silicones, aqueous epoxy resins or waterborne polyurethane resin.
- 3. graphene water-based electric heating coating according to claim 1, it is characterised in that：The particle diameter of the nano-graphene Less than 100nm.
- 4. graphene water-based electric heating coating according to claim 1, it is characterised in that：The calcium sulfate crystal whiskers and hydrogenation The weight ratio of castor oil is 2:1.
- 5. graphene water-based electric heating coating according to claim 1, it is characterised in that：Described levelling agent is BYK- 333, described defoamer is BD-304.
- A kind of 6. method for preparing the graphene water-based electric heating coating described in claim any one of 1-5, it is characterised in that：Will Water-base resin and water first mix, and form mixed solution；Then toward addition nano-graphene powder in mixed solution, it is dispersed with stirring It is even；Then toward the mixing that polyaniline, polythiophene, levelling agent, calcium sulfate crystal whiskers and rilanit special are continuously added in mixed solution Thing and defoamer, and stir to obtain mixed solution, mixed solution is placed in ball mill and carries out ball milling, ball milling speed For 400~600 r/min, Ball-milling Time is 4~6 hours.
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| CN108531050A (en) * | 2018-04-16 | 2018-09-14 | 上海九鹏化工有限公司 | A kind of Antistatic type polythiophene base watery anti-corrosion slurry |
| CN108912989A (en) * | 2018-05-09 | 2018-11-30 | 中国科学院苏州纳米技术与纳米仿生研究所南昌研究院 | A kind of novel aqueous PTC electric-heating coatings and preparation method thereof |
| CN108912990A (en) * | 2018-05-09 | 2018-11-30 | 中国科学院苏州纳米技术与纳米仿生研究所南昌研究院 | A kind of aqueous PTC nano-sized carbon electric-heating coatings and preparation method thereof |
| CN109913075A (en) * | 2019-03-29 | 2019-06-21 | 秾源科技(北京)有限公司 | A kind of electric-heating coatings and preparation method thereof |
| CN115975490A (en) * | 2023-01-05 | 2023-04-18 | 深圳市深赛尔股份有限公司 | Environment-friendly polyurethane water-based paint and preparation method thereof |
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| CN108912989A (en) * | 2018-05-09 | 2018-11-30 | 中国科学院苏州纳米技术与纳米仿生研究所南昌研究院 | A kind of novel aqueous PTC electric-heating coatings and preparation method thereof |
| CN108912990A (en) * | 2018-05-09 | 2018-11-30 | 中国科学院苏州纳米技术与纳米仿生研究所南昌研究院 | A kind of aqueous PTC nano-sized carbon electric-heating coatings and preparation method thereof |
| CN109913075A (en) * | 2019-03-29 | 2019-06-21 | 秾源科技(北京)有限公司 | A kind of electric-heating coatings and preparation method thereof |
| CN115975490A (en) * | 2023-01-05 | 2023-04-18 | 深圳市深赛尔股份有限公司 | Environment-friendly polyurethane water-based paint and preparation method thereof |
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