CN113355016A - Water-based graphene conductive energy-storage heating anticorrosive paint and preparation method thereof - Google Patents
Water-based graphene conductive energy-storage heating anticorrosive paint and preparation method thereof Download PDFInfo
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/778—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur silicon
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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
- C09D5/08—Anti-corrosive paints
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
Abstract
The invention relates to a water-based graphene conductive energy-storage heating anticorrosive paint and a preparation method thereof. And provides a preparation method which organically compounds the water-based polymer emulsion, the isocyanate curing agent and the silanized isocyanate curing agent in a layered arrangement and simultaneously coordinates and unifies the fillers such as graphene and the like and the auxiliary agents with high efficiency. The obtained coating has excellent electric conduction effect, thermal conduction effect and corrosion protection effect, and can realize excellent heating effect under the voltage of 24-36V. Meanwhile, the preparation method is simple, can be obtained only by a high-speed dispersion mode, is simple and feasible in process, environment-friendly and pollution-free, has good engineering prospect, and can be well applied to the fields of indoor home decoration, outdoor deicing, seat heating and the like.
Description
Technical Field
The invention relates to a water-based graphene conductive energy-storage heating anticorrosive paint and a preparation method thereof, belonging to the technical field of high polymer materials.
Background
The conductive heating coating, also known as electrothermal coating, is a novel functional coating with excellent electrothermal property developed on the basis of the conductive coating, and has wide application prospect. A water heater device matched with an electric heating coating and a solar cell is developed in Suzuki of Japan in 1991, the solar cell is mainly used as a power supply, the electric heating coating is used as a heating body, the voltage is only below 24V, and the safety is very high. The transparent electrothermal coating can be used for preventing the window glass from freezing; the reports of melting snow on runways and roads with electrothermal coatings and electrothermal toilets also appear; applications in daily life are as follows: electric heating dining table, electric heating writing table, electric heating blanket, electric water heater and electric heating wall painting; industrial low-temperature baking electric furnace: such as food ovens, drying of wood, etc.; used in agriculture for drying and raising seeds; can be used for heat preservation of oil pipelines in chemical engineering and the like. Since the 60 th age in the 20 th century, the traditional conductive heating coating is mainly prepared by taking silicate and organic high molecular polymer as binders and adding carbon black, graphite, metal series or metal oxide materials into the binders to prepare the electrothermal coating, and the principle is that the electric conductivity of a conductive coating is utilized to convert electric energy into heat energy, but the traditional conductive heating coating has the defects that the coating is not high in heating temperature and easy to fall off, the binders are not strong in heat resistance, local points are easy to scorch, conductive fillers are easy to oxidize, and cracks often appear in the coating structure, so that the coating has the problem of deterioration in the using process. The research of domestic electric heating coatings is late, the electric heating coatings are mainly prepared by mechanically mixing precious metal fillers, synthetic resin and various auxiliaries, but the electric heating coatings are restricted in practical use due to a series of problems of high price, insufficient self properties and the like.
With the continuous progress of science and technology, the application field of the electric heating coating is wider. The defects of low surface heating temperature, poor heat resistance and aging resistance, high maintenance cost and the like of the traditional electric heating coating seriously restrict the rapid development of the electric heating coating and the application of the electric heating coating in many fields. Graphene has the advantages of high electrical conductivity, high thermal conductivity, low thermal expansion coefficient, good mechanical properties, strong corrosion resistance, good applicability and the like, and becomes a class of heat conduction materials with the most development prospect at present.
Chinese patent CN111876042A discloses a conductive heating functional coating and a preparation method thereof, TiN and flake graphite phase carbon nitride in the prepared conductive and heat-conducting filler are mutually supported and built, and have excellent conductive-heat-conducting performance, and the surface of the conductive and heat-conducting filler is coated with stannic oxide doped with antimony, so that the conductive performance of the material can be obviously improved, the addition of the traditional conductive material is obviously reduced, the heating efficiency of the material is favorably improved, the heat-conducting performance is further improved by adding carbon fibers, and the finally prepared conductive heating coating is high in safety; chinese patent CN112552792A discloses a preparation method of graphene heating paint and a preparation method of heating sheets, which mixes graphene, resin, an auxiliary agent, a solvent and metal neodymium powder, and grinds and disperses the mixture for many times by a grinder, thereby forming a graphene heating paint solution.
According to the description, the current way of improving the working efficiency of the electric-conduction heating coating is started from the aspect of the filler, and the overlapping degree between the electric-conduction heat-conduction fillers is mainly solved by introducing various types of metal fillers.
Disclosure of Invention
The invention aims to: aiming at the defects of the prior art, the invention provides a water-based graphene conductive energy storage heating anticorrosive paint and a preparation method thereof, aiming at the problem that the application field of the electric heating paint is limited due to the defects of lower surface heating temperature, poorer heat resistance and aging resistance, poorer environment protection, higher maintenance cost and the like of the traditional electric heating paint, the invention provides the anticorrosive paint which organically compounds a water-based polymer emulsion, an isocyanate curing agent and a silanized isocyanate curing agent in a layered arrangement and simultaneously coordinates and unifies the fillers and the additives such as graphene and the like with high efficiency and a preparation method thereof. The obtained coating has excellent electric conduction effect, thermal conduction effect and corrosion protection effect, and can realize excellent heating effect under the voltage of 24-36V. The preparation method is simple, can be obtained only by a high-speed dispersion mode, and has the advantages of simple and feasible process, environmental protection, no pollution and good engineering prospect.
The technical scheme adopted by the invention is as follows: the water-based graphene conductive energy-storage heating anticorrosive paint comprises the following components in parts by mass:
35-55 parts of a water-based polymer emulsion;
6-10 parts of an isocyanate curing agent;
12-20 parts of a silanized isocyanate curing agent;
0.5-1 part of a conductive graphene material;
15-25 parts of metal filler;
5-20 parts of functional filler;
and 2-3 parts of an auxiliary agent.
In the present invention: the water-based polymer emulsion is hydroxy acrylic emulsion, polyether type or polyester type polyurethane emulsion; the silanized isocyanate curing agent is methyl silicon modified or phenyl silicon modified isocyanate curing agent; the conductive graphene material is graphene prepared by a thermal reduction method.
In the present invention: the hydroxyl acrylic emulsion, the polyether type or the polyester type polyurethane emulsion are preferably one or a mixture of Acronal 7530, HS-8023, YS-3000, Adwel 1630C, RE-906 and F0410.
In the present invention: the isocyanate curing agent is preferably one or a mixture of XP 2547, XP 2655, KX 9547 and Bayhydur 3100.
In the present invention: the conductive graphene material is prepared by a thermal reduction method, the number of layers is 3-10, and the particle size is 5-10 microns.
In the present invention: the metal filler is one or a mixture of more of aluminum nitride (AlN), Boron Nitride (BN), magnesium oxide (MgO), alpha-alumina (Al 2O3, needle shape), alpha-alumina (Al 2O3, spherical shape) and zinc oxide (ZnO).
In the present invention: the functional filler is one or a mixture of more of barite, calcium carbonate, mica powder, glass flakes, talcum powder, barium sulfate, iron oxide red, iron oxide ash and graphite flakes.
In the present invention: the auxiliary agent is a mixture of two or more of anti-settling agent (glass beads, silicon micropowder and fumed silica), leveling agent (BYK-190, FA115 and FA 182), defoaming agent (AP 7010 and AP 7015) and flash rust inhibitor (FA 179, R-725 and W-18).
A preparation method of a water-based graphene conductive energy-storage heating anticorrosive paint comprises the following steps:
(1) adding a metered water-based polymer emulsion part into a dispersion tank, adding an auxiliary agent, and dispersing at a high speed of 600r/min for 0.5h to obtain a resin solution system;
(2) adding a conductive graphene material into the resin solution system obtained in the step (1) in batches, and dispersing at a high speed for 1h at a rotating speed of 1000r/min to obtain a viscous liquid mixture;
(3) adding metal filler and functional filler into the resin solution system obtained in the step (2) in batches, and dispersing at a high speed for 2 hours at a rotating speed of 1000r/min to obtain a viscous liquid mixture;
(4) continuously adding the residual water-based polymer emulsion into the pre-dispersed coating obtained in the step (3), and then continuously dispersing at the rotating speed of 1000r/min until the fineness of the coating is less than or equal to 60 mu m;
(5) and (3) mixing and uniformly stirring an isocyanate curing agent and a silanized isocyanate curing agent with the mixture obtained in the step (4) according to the parts by mass, and uniformly brushing the mixture on the surface of the substrate to obtain the water-based graphene conductive energy storage heating anticorrosive coating material.
After the technical scheme is adopted, the invention has the beneficial effects that:
(1) the graphene material with few defects and good conductivity coefficient obtained by thermal reduction is compounded with other metal fillers, so that a complete and uniform conductive layer can be formed on the surface of the coating, and the coating has a more excellent heating effect;
(2) according to the invention, a water-based polymer emulsion system is used as a conductive heating coating substrate, and the anticorrosive filler with the function is reasonably designed and matched, so that the optimal heating environment of the coating is placed under the voltage condition of 24-36V, and the environment is protected, and the coating is ensured to have the conductive heating and anticorrosive integrated effect;
(3) according to the invention, the traditional isocyanate curing agent and the silanized isocyanate curing agent are matched for use, an upper and lower layered structure can be formed by different parameters such as density and dissolution parameters in the compounding process of the aqueous polymer emulsion, and the lower layer can effectively utilize the graphene conductive heating effect to store heat; the upper layer can form a heating layer by utilizing the advantage of good heat dissipation of the silanization system, and energy storage/heating layer sequence distribution is formed, so that the continuous supply of heat is ensured, and the purpose of more excellent heating is achieved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic diagram showing the heat distribution after the power is applied for 10min at a voltage of 25V in example 1 of the present invention;
FIG. 3 shows the 1000h neutral salt spray test results of example 1 of the present invention. .
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Example 1
The water-based graphene conductive energy-storage heating anticorrosive paint comprises the following components:
35g of aqueous polymer emulsion;
6g of isocyanate curing agent;
12g of silanized isocyanate curing agent;
1g of conductive graphene material;
25g of metal filler;
19g of functional filler;
and 2g of auxiliary agent.
A preparation method of a water-based graphene conductive energy-storage heating anticorrosive paint comprises the following steps:
(1) adding 10g of polyurethane emulsion YS-3000 into a dispersion tank, adding 0.25g of BYK-190, 0.25g of FA179, 0.5g of AP7010 and 1g of fumed silica, and dispersing at a high speed of 600r/min for 0.5h to obtain a resin solution system;
(2) adding 1g of conductive graphene material into the resin solution system obtained in the step (1) in batches, and dispersing at a high speed for 1h at a rotating speed of 1000r/min to obtain a viscous liquid mixture;
(3) adding 25g of boron nitride and 19g of mica powder into the resin solution system obtained in the step (2) in batches, and dispersing at a high speed of 1000r/min for 2 hours to obtain a viscous liquid mixture;
(4) continuously adding the rest 25g of polyurethane emulsion YS-3000 into the pre-dispersed coating obtained in the step (3), and then continuously dispersing at the rotating speed of 1000r/min until the fineness of the coating is less than or equal to 60 mu m;
(5) and (3) mixing 6g of isocyanate curing agent and 12g of methyl silanized isocyanate curing agent with the mixture obtained in the step (4) according to the mass ratio of (0.2-0.25)/1, uniformly stirring, and uniformly brushing the mixture on the surface of the substrate to obtain the aqueous graphene conductive energy storage heating anticorrosive coating material with the sequence distribution.
The adhesion force between the aqueous graphene conductive energy storage heating anticorrosive coating material with the sequence distribution and the base material is 10 MPa; the heat conductivity coefficient is 11W/mK, and the highest surface temperature of the material can reach 55 ℃ when the material is electrified at 25V for 10 min; the neutral salt spray resistant (Sa2.5 grade, 1000 h) coating has no foaming and rusting phenomena.
Example 2
The water-based graphene conductive energy-storage heating anticorrosive paint comprises the following components:
55g of aqueous polymer emulsion;
10g of isocyanate curing agent;
12g of silanized isocyanate curing agent;
1g of conductive graphene material;
15g of metal filler;
5g of functional filler;
and 2g of auxiliary agent.
A preparation method of a water-based graphene conductive energy-storage heating anticorrosive paint comprises the following steps:
(1) adding 10g of hydroxyl acrylic emulsion Acronal 7530 into a dispersion tank, then adding 0.25g of BYK-190, 0.25g of FA179, 0.5g of AP7010 and 1g of fumed silica, and then dispersing at a high speed of 600r/min for 0.5h to obtain a resin solution system;
(2) adding 1g of conductive graphene material into the resin solution system obtained in the step (1) in batches, and dispersing at a high speed for 1h at a rotating speed of 1000r/min to obtain a viscous liquid mixture;
(3) adding 10g of boron nitride, 5g of alumina and 5g of glass flakes into the resin solution system obtained in the step (2) in batches, and dispersing at a high speed for 2 hours at a rotating speed of 1000r/min to obtain a viscous liquid mixture;
(4) continuously adding the rest 40g of hydroxyl acrylic emulsion Acronal 7530 into the pre-dispersed coating obtained in the step (3), and then continuously dispersing at the rotating speed of 1000r/min until the fineness of the coating is less than or equal to 60 mu m;
(5) and (3) mixing 10g of isocyanate curing agent and 12g of methyl silanized isocyanate curing agent with the mixture obtained in the step (4) according to the mass ratio of (0.2-0.3)/1, uniformly stirring, and uniformly brushing the mixture on the surface of the substrate to obtain the aqueous graphene conductive energy storage heating anticorrosive coating material with the sequence distribution.
The adhesion force between the aqueous graphene conductive energy storage heating anticorrosive coating material distributed in the sequence and the base material is 11 MPa; the heat conductivity coefficient is 10W/mK, and the highest surface temperature of the material can reach 55 ℃ when the material is electrified at 25V for 10 min; the surface of the neutral salt spray resistant (Sa2.5 grade, 800 h) coating has no foaming and rusting phenomena.
Example 3
The water-based graphene conductive energy-storage heating anticorrosive paint comprises the following components:
45g of aqueous polymer emulsion;
8g of isocyanate curing agent;
15g of silanized isocyanate curing agent;
0.5g of conductive graphene material;
15g of metal filler;
14g of functional filler;
and 2g of auxiliary agent.
A preparation method of a water-based graphene conductive energy-storage heating anticorrosive paint comprises the following steps:
(1) adding 10g of polyurethane emulsion RE-906 into a dispersion tank, adding 0.5g of FA115, 0.5g of AP7015, 0.5g of FA179 and 0.5g of fumed silica, and dispersing at a high speed of 600r/min for 0.5h to obtain a resin solution system;
(2) adding 0.5g of conductive graphene material into the resin solution system obtained in the step (1) in batches, and dispersing at a high speed for 1h at a rotating speed of 1000r/min to obtain a viscous liquid mixture;
(3) adding 10g of boron nitride, 5g of aluminum oxide, 5g of glass flakes, 5g of mica powder and 4g of iron oxide red into the resin solution system obtained in the step (2) in batches, and dispersing at a high speed of 1000r/min for 2 hours to obtain a viscous liquid mixture;
(4) continuously adding the rest 35g of hydroxyl acrylic emulsion Acronal 7530 into the pre-dispersed coating obtained in the step (3), and then continuously dispersing at the rotating speed of 1000r/min until the fineness of the coating is less than or equal to 60 mu m;
(5) and (3) mixing 8g of isocyanate curing agent and 15g of phenyl silanized isocyanate curing agent with the mixture obtained in the step (4) according to the mass ratio of (0.2-0.3)/1, uniformly stirring, and uniformly brushing the mixture on the surface of the substrate to obtain the aqueous graphene conductive energy storage heating anticorrosive coating material with the sequence distribution.
The adhesion force between the aqueous graphene conductive energy storage heating anticorrosive coating material with the sequence distribution and the base material is 10 MPa; the heat conductivity coefficient is 9W/mK, and the highest surface temperature of 50 ℃ can be reached when the battery is electrified at 25V for 10 min; the surface of the neutral salt spray resistant (Sa2.5 grade, 1200 h) coating has no foaming and rusting phenomena.
Example 4
The water-based graphene conductive energy-storage heating anticorrosive paint comprises the following components:
45g of aqueous polymer emulsion;
6g of isocyanate curing agent;
20g of silanized isocyanate curing agent;
1g of conductive graphene material;
15g of metal filler;
10g of functional filler;
3g of auxiliary agent.
A preparation method of a water-based graphene conductive energy-storage heating anticorrosive paint comprises the following steps:
(1) adding 15g of polyurethane emulsion F0410 into a dispersion tank, adding 0.5g of FA115, 0.5g of AP7015, 1g of FA179 and 1g of silicon micropowder, and dispersing at a high speed of 600r/min for 0.5h to obtain a resin solution system;
(2) adding 1g of conductive graphene material into the resin solution system obtained in the step (1) in batches, and dispersing at a high speed for 1h at a rotating speed of 1000r/min to obtain a viscous liquid mixture;
(3) adding 10g of boron nitride, 5g of magnesium oxide, 5g of glass flakes and 5g of barite into the resin solution system obtained in the step (2) in batches, and dispersing at a high speed of 1000r/min for 2 hours to obtain a viscous liquid mixture;
(4) continuously adding the rest 30g of polyurethane emulsion F0410 into the pre-dispersed coating obtained in the step (3), and continuously dispersing at the rotating speed of 1000r/min until the fineness of the coating is less than or equal to 60 mu m; (ii) a
(5) And (3) mixing 6g of isocyanate curing agent and 20g of phenyl silanized isocyanate curing agent with the mixture obtained in the step (4) according to the mass ratio of (0.3-0.4)/1, uniformly stirring, and uniformly brushing the mixture on the surface of the substrate to obtain the aqueous graphene conductive energy storage heating anticorrosive coating material with the sequence distribution.
The adhesion force between the aqueous graphene conductive energy storage heating anticorrosive coating material distributed in the sequence and the base material is 12 MPa; the heat conductivity coefficient is 12W/mK, and the highest surface temperature is 58 ℃ after 25V electrification for 10 min; the surface of the neutral salt spray resistant (Sa2.5 grade, 1500 h) coating has no foaming and rusting phenomena.
The above description is directed to specific embodiments of the present invention, but the present invention is not limited to the above description. Any equivalent modifications and alterations to this technical solution would be considered within the scope of this invention by those skilled in the art. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (9)
1. The water-based graphene conductive energy-storage heating anticorrosive paint is characterized in that: the paint comprises the following components in parts by mass:
35-55 parts of a water-based polymer emulsion;
6-10 parts of an isocyanate curing agent;
12-20 parts of a silanized isocyanate curing agent;
0.5-1 part of a conductive graphene material;
15-25 parts of metal filler;
5-20 parts of functional filler;
and 2-3 parts of an auxiliary agent.
2. The aqueous graphene conductive energy storage heating anticorrosive paint according to claim 1, characterized in that: the water-based polymer emulsion is hydroxy acrylic emulsion, polyether type or polyester type polyurethane emulsion;
the silanized isocyanate curing agent is methyl silicon modified or phenyl silicon modified isocyanate curing agent;
the conductive graphene material is graphene prepared by a thermal reduction method.
3. The aqueous graphene conductive energy storage heating anticorrosive paint according to claim 2, characterized in that:
the hydroxyl acrylic emulsion, the polyether type or the polyester type polyurethane emulsion are preferably one or a mixture of Acronal 7530, HS-8023, YS-3000, Adwel 1630C, RE-906 and F0410.
4. The aqueous graphene conductive energy storage heating anticorrosive paint according to claim 2, characterized in that: the isocyanate curing agent is preferably one or a mixture of XP 2547, XP 2655, KX 9547 and Bayhydur 3100.
5. The aqueous graphene conductive energy storage heating anticorrosive paint according to claim 2, characterized in that: the conductive graphene material is prepared by a thermal reduction method, the number of layers is 3-10, and the particle size is 5-10 microns.
6. The preparation method of the water-based graphene conductive energy storage heating anticorrosive paint according to claim 1, characterized by comprising the following steps: the metal filler is one or a mixture of more of aluminum nitride (AlN), Boron Nitride (BN), magnesium oxide (MgO), alpha-alumina (Al 2O3, needle shape), alpha-alumina (Al 2O3, spherical shape) and zinc oxide (ZnO).
7. The preparation method of the water-based graphene conductive energy storage heating anticorrosive paint according to claim 1, characterized by comprising the following steps: the functional filler is one or a mixture of more of barite, calcium carbonate, mica powder, glass flakes, talcum powder, barium sulfate, iron oxide red, iron oxide ash and graphite flakes.
8. The preparation method of the water-based graphene conductive energy storage heating anticorrosive paint according to claim 1, characterized by comprising the following steps: the auxiliary agent is a mixture of two or more of anti-settling agent (glass beads, silicon micropowder and fumed silica), leveling agent (BYK-190, FA115 and FA 182), defoaming agent (AP 7010 and AP 7015) and flash rust inhibitor (FA 179, R-725 and W-18).
9. A preparation method of a water-based graphene conductive energy-storage heating anticorrosive paint is characterized by comprising the following steps: the method comprises the following steps:
(1) adding a metered water-based polymer emulsion part into a dispersion tank, adding an auxiliary agent, and dispersing at a high speed of 600r/min for 0.5h to obtain a resin solution system;
(2) adding a conductive graphene material into the resin solution system obtained in the step (1) in batches, and dispersing at a high speed for 1h at a rotating speed of 1000r/min to obtain a viscous liquid mixture;
(3) adding metal filler and functional filler into the resin solution system obtained in the step (2) in batches, and dispersing at a high speed for 2 hours at a rotating speed of 1000r/min to obtain a viscous liquid mixture;
(4) continuously adding the residual water-based polymer emulsion into the pre-dispersed coating obtained in the step (3), and then continuously dispersing at the rotating speed of 1000r/min until the fineness of the coating is less than or equal to 60 mu m;
(5) and (3) mixing and uniformly stirring an isocyanate curing agent and a silanized isocyanate curing agent with the mixture obtained in the step (4) according to the parts by mass, and uniformly brushing the mixture on the surface of the substrate to obtain the water-based graphene conductive energy storage heating anticorrosive coating material.
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| CN114891432A (en) * | 2022-04-28 | 2022-08-12 | 深圳市科美新创科技有限公司 | Environment-friendly heat dissipation coating for LED display screen and preparation method thereof |
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Application publication date: 20210907 |