CN110016285B - Electrothermal coating, and electrothermal coating liquid set and method for forming electrothermal coating - Google Patents
Electrothermal coating, and electrothermal coating liquid set and method for forming electrothermal coating Download PDFInfo
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- CN110016285B CN110016285B CN201810020112.1A CN201810020112A CN110016285B CN 110016285 B CN110016285 B CN 110016285B CN 201810020112 A CN201810020112 A CN 201810020112A CN 110016285 B CN110016285 B CN 110016285B
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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
- 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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- 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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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses an electrothermal coating, and an electrothermal coating liquid set and a method for forming the electrothermal coating. Wherein, the electric heat coating includes: a first electrothermal coating layer formed on the surface of the substrate and a second electrothermal coating layer formed on the first electrothermal coating layer, wherein the first electrothermal coating layer comprises: graphene, nickel powder, styrene-maleic anhydride copolyester, polyvinylpyrrolidone, silicone oil and aminopropyltrimethoxysilane; the second electrothermal coating comprises: graphene, carbon nanotubes, polyvinylpyrrolidone, silicone oil, aluminum stearate, and polydimethylsiloxane. The electric heating coating provided by the invention has the advantages of excellent conductivity, high heat transfer speed, uniform temperature distribution, strong wear resistance and higher bonding strength with a base material.
Description
Technical Field
The invention belongs to the field of material chemical industry, and particularly relates to an electrothermal coating, an electrothermal coating liquid set for forming the electrothermal coating and a method.
Background
The electrothermal coating is a novel functional coating with good conductivity and heating performance, is widely applied to production and life, and requires that a coating formed by the electrothermal coating has good adhesive force, flexibility resistance and capability of realizing higher heating temperature under low voltage. The resistance of the common electrothermal coating is more than dozens of ohms, if the resistance is further reduced by adding a conductive material, the adhesive force of the coating is poor, the coating is easy to peel off, the resistance reducing effect cannot be realized, and the service life of the coating is shortened. Therefore, the electrothermal coating layer still has a great room for improvement in conductivity, abrasion resistance, adhesion, and the like.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide an electrothermal coating layer, an electrothermal coating liquid set for forming the electrothermal coating layer, and a method thereof, which have excellent electrical conductivity, fast heat transfer rate, uniform temperature distribution, strong wear resistance, and high bonding strength with a substrate.
According to a first aspect of the present invention, there is provided an electrothermal coating comprising:
a first electrothermal coating layer formed on the surface of the base material and a second electrothermal coating layer formed on the first electrothermal coating layer,
wherein the first electrothermal coating comprises: graphene, nickel powder, styrene-maleic anhydride copolyester, polyvinylpyrrolidone, silicone oil and aminopropyltrimethoxysilane;
the second electrothermal coating comprises: graphene, carbon nanotubes, polyvinylpyrrolidone, silicone oil, aluminum stearate, and polydimethylsiloxane.
The electrothermal coating disclosed by the embodiment of the invention has the advantages of excellent conductivity, high heat transfer speed, uniform temperature distribution, strong wear resistance and higher bonding strength with the base material, is not easy to fall off or be damaged in the use process, and can be used for various base materials, particularly pipelines for naval vessels and ships, satellite antennas, aircrafts, automobile parts and the like, so that the conductive heating effect is realized.
In addition, the electrothermal coating according to the above embodiment of the present invention may further have the following additional technical features:
in some embodiments of the invention, the first electrocaloric coating comprises: 5-10 parts of graphene, 10-15 parts of nickel powder, 0.5-2 parts of styrene-maleic anhydride copolyester, 0.5-2 parts of polyvinylpyrrolidone, 1-5 parts of silicone oil and 0.5-2 parts of aminopropyltrimethoxysilane by weight; the second electrothermal coating comprises: 5-10 parts of graphene, 5-15 parts of carbon nano tubes, 0.5-2 parts of polyvinylpyrrolidone, 1-5 parts of silicone oil, 0.5-1 part of aluminum stearate and 0.5-2 parts of polydimethylsiloxane. This can further improve the conductivity, heat transfer rate, temperature distribution uniformity, wear resistance, and bonding strength with the base material of the electrothermal coating layer formed on the surface of the base material.
In some embodiments of the invention, the first electrocaloric coating comprises: 8 parts of graphene, 15 parts of nickel powder, 1 part of styrene-maleic anhydride copolyester, 1 part of polyvinylpyrrolidone, 3 parts of silicone oil and 1.5 parts of aminopropyltrimethoxysilane by weight; the second electrothermal coating comprises: 10 parts by weight of graphene, 10 parts by weight of carbon nanotubes, 1.5 parts by weight of polyvinylpyrrolidone, 3 parts by weight of silicone oil, 1 part by weight of aluminum stearate, and 1.5 parts by weight of polydimethylsiloxane. Therefore, the electrothermal coating formed on the surface of the base material has better conductivity, heat transfer speed, temperature distribution uniformity, wear resistance, bonding strength with the base material and the like.
According to a second aspect of the present invention, there is also provided an electrothermal coating liquid set for forming the above electrothermal coating, comprising:
a first electrothermal coating liquid and a second electrothermal coating liquid, which are separately packaged, wherein,
the first electrothermal coating liquid is an aqueous solution and comprises: 5-10 wt% of graphene, 10-15 wt% of nickel powder, 0.5-2 wt% of styrene-maleic anhydride copolyester, 0.5-2 wt% of polyvinylpyrrolidone, 1-5 wt% of silicone oil and 0.5-2 wt% of aminopropyltrimethoxysilane;
the second electrothermal coating liquid is an aqueous solution and comprises: 5-10 wt% of graphene, 5-15 wt% of carbon nano tube, 0.5-2 wt% of polyvinylpyrrolidone, 1-5 wt% of silicone oil, 0.5-1 wt% of aluminum stearate and 0.5-2 wt% of polydimethylsiloxane.
According to the electric heating coating liquid suit for forming the electric heating coating, the raw material components and the proportion of the first electric heating coating liquid and the second electric heating coating liquid are respectively controlled, so that the electric heating coating which is uniform, compact, good in wear resistance and conductivity, high in heat transfer speed and uniform in temperature distribution can be formed on the surface of the base material, the mechanical property of the electric heating coating formed on the surface of the base material and the adhesive force between the electric heating coating and the base material can be obviously improved, the bonding strength between the electric heating coating and the base material can reach 20Mpa, the electric heating coating does not easily fall off or is not easily damaged in the using process, and the working efficiency and the service life of the formed electric heating coating can be obviously improved; in addition, the electrothermal coating liquid set for forming the electrothermal coating of the embodiment of the invention has wide applicability, and can be used for various base materials, in particular to pipelines for naval vessels and ships, satellite antennas, aircrafts, automobile parts and the like.
In some embodiments of the present invention, the first electrothermal coating liquid is an aqueous solution and comprises: 8 wt% of graphene, 15 wt% of nickel powder, 1 wt% of styrene-maleic anhydride copolyester, 1 wt% of polyvinylpyrrolidone, 3 wt% of silicone oil and 1.5 wt% of aminopropyltrimethoxysilane, wherein the second electrothermal coating liquid is an aqueous solution and comprises: 10 wt% of graphene, 10 wt% of carbon nanotubes, 1.5 wt% of polyvinylpyrrolidone, 3 wt% of silicone oil, 1 wt% of aluminum stearate, and 1.5 wt% of polydimethylsiloxane. Therefore, the method is further beneficial to forming the uniform and compact electric heating coating with uniform temperature distribution on the surface of the base material, and can also obviously improve the conductivity, the heat transfer speed, the mechanical property, the wear resistance, the weather resistance and the adhesive force between the electric heating coating formed on the surface of the base material and the base material.
According to the third aspect of the present invention, the present invention also provides a method for forming an electrothermal coating on a substrate surface by using the electrothermal coating liquid for forming an electrothermal coating, comprising:
spraying the first electrothermal coating liquid on the surface of a base material, and drying to form a first electrothermal coating;
and spraying the second electrothermal coating liquid on the surface of the first electrothermal coating, and drying to form a second electrothermal coating on the first electrothermal coating to obtain the electrothermal coating.
The method for forming the electrothermal coating on the surface of the base material in the embodiment of the invention has simple process, and can spray the first electrothermal coating liquid and the second electrothermal coating liquid on the base material in sequence, thereby being beneficial to forming the electrothermal coating which is uniform, compact, good in wear resistance and electrical conductivity, high in heat transfer speed and uniform in temperature distribution on the surface of the base material, and also being capable of remarkably improving the mechanical property of the electrothermal coating formed on the surface of the base material and the adhesive force between the electrothermal coating and the base material, enabling the bonding strength between the electrothermal coating and the base material to be up to 20Mpa, and being not easy to fall off or be damaged in the using process, and further being capable of remarkably improving the working efficiency and the service life of the electrothermal coating formed on the surface of the base material.
In some embodiments of the invention, the substrate is at least one selected from the group consisting of a pipeline for a naval vessel, a satellite dish, an aircraft, and an automobile part. Therefore, the electrothermal coating can be formed on the surface of the base material, and the effect of conductive heating can be realized on the surface of the base material.
Detailed Description
The following describes embodiments of the present invention in detail. The following described embodiments are exemplary and are intended to be illustrative of the invention and are not to be construed as limiting the invention.
According to a first aspect of the present invention, there is provided an electrothermal coating comprising:
the electrothermal film comprises a first electrothermal coating layer formed on the surface of a base material and a second electrothermal coating layer formed on the first electrothermal coating layer, wherein the first electrothermal coating layer comprises: graphene, nickel powder, styrene-maleic anhydride copolyester, polyvinylpyrrolidone, silicone oil and aminopropyltrimethoxysilane; the second electrothermal coating comprises: graphene, carbon nanotubes, polyvinylpyrrolidone, silicone oil, aluminum stearate, and polydimethylsiloxane.
The electrothermal coating disclosed by the embodiment of the invention has the advantages of excellent conductivity, high heat transfer speed, uniform temperature distribution, strong wear resistance and higher bonding strength with the base material, is not easy to fall off or be damaged in the use process, and can be used for various base materials, particularly pipelines for naval vessels and ships, satellite antennas, aircrafts, automobile parts and the like, so that the conductive heating effect is realized.
According to a specific embodiment of the present invention, the first electrothermal coating layer may include 5 to 10 parts by weight of graphene and 10 to 15 parts by weight of nickel powder. The graphene is a honeycomb-shaped planar film formed by carbon atoms in an sp2 hybridization mode, is a quasi-two-dimensional material with the thickness of only one atomic layer, and has very good strength, flexibility, electric conduction, heat conduction and optical characteristics.
According to an embodiment of the present invention, the first electrothermal coating layer may include 0.5-2 parts by weight of styrene-maleic anhydride copolyester and 0.5-2 parts by weight of polyvinylpyrrolidone. The inventor finds that when the first electrothermal coating is formed on the surface of the substrate, when the styrene-maleic anhydride copolyester and the polyvinylpyrrolidone are simultaneously adopted and the styrene-maleic anhydride copolyester and the polyvinylpyrrolidone in the first electrothermal coating formed on the surface of the substrate are controlled to be in the above proportion, the uniform dispersion of the raw material components in the first electrothermal coating liquid is facilitated, the uniformity and the stability of the first electrothermal coating liquid are obviously improved, and the first electrothermal coating liquid can have proper viscosity, so that the uniform, compact and uniformly conductive first electrothermal coating can be formed on the surface of the substrate.
According to an embodiment of the present invention, the first electrothermal coating layer may include 1 to 5 parts by weight of silicone oil and 0.5 to 2 parts by weight of aminopropyltrimethoxysilane. The inventor finds that when the first electrothermal coating is formed on the surface of the base material, by adopting the silicone oil and the aminopropyltrimethoxysilane and controlling the silicone oil and the aminopropyltrimethoxysilane in the first electrothermal coating formed on the surface of the base material to be in the above proportion, not only can bubbles possibly existing in the first electrothermal coating liquid be effectively removed, but also the flowability of the first electrothermal coating liquid, the coating uniformity of the first electrothermal coating liquid on the surface of the base material and the heating uniformity of the formed first electrothermal coating can be remarkably increased, and the adhesive force between the first electrothermal coating liquid and the surface of the base material can be further enhanced. Therefore, the method is beneficial to forming the uniform and compact first electrothermal coating on the surface of the base material, and can also obviously improve the bonding strength of the formed first electrothermal coating and the surface of the base material.
According to a specific embodiment of the present invention, the second electrothermal coating layer may include 5 to 10 parts by weight of graphene and 5 to 15 parts by weight of carbon nanotubes. The inventor finds that the water-based carbon nano coating has good flexibility, foldability and portability, can be used as a single coating to endow the substrate with the characteristics of electric conduction and heat generation, when the carbon nano tube and the graphene are electrified, nearby objects can generate heat, the carbon nano material is still cold, and meanwhile, when the carbon nano tube and the graphene are used together, a cross-linked conductive network can be effectively constructed. Therefore, the graphene and the carbon nano tube with the proportion are selected to be used as the conductive medium of the second electrothermal coating liquid, so that the conductivity and the conductive heating efficiency of the formed second electrothermal coating can be effectively ensured, the mechanical property and the wear resistance of the second electrothermal coating can be further improved, and the conductive heating property and the service life of the electrothermal coating formed on the surface of the base material can be obviously improved.
According to a specific embodiment of the present invention, the second electrothermal coating layer may include 0.5-2 parts by weight of polyvinylpyrrolidone. The inventor finds that when the second electrothermal coating is formed on the first electrothermal coating, by controlling the polyvinylpyrrolidone in the formed second electrothermal coating to be in the above proportion, not only raw material components such as graphene and carbon nanotubes can be fully dispersed in the second electrothermal coating liquid, and further the uniformity and stability of the second electrothermal coating liquid are remarkably improved, but also the second electrothermal coating liquid can have appropriate viscosity, and thus the formation of the uniform and compact second electrothermal coating on the surface of the first electrothermal coating can be further facilitated.
According to a specific embodiment of the present invention, the second electrothermal coating layer may include 1 to 5 parts by weight of silicone oil and 0.5 to 1 part by weight of aluminum stearate. Therefore, when the second electrothermal coating is formed on the first electrothermal coating, air bubbles possibly existing in the second electrothermal coating liquid can be effectively removed, and further the flowability of the second electrothermal coating liquid, the coating uniformity of the second electrothermal coating liquid on the surface of the first electrothermal coating and the heating uniformity of the formed second electrothermal coating can be remarkably improved.
According to a specific embodiment of the present invention, the first electrothermal coating layer may include: 5-10 parts of graphene, 10-15 parts of nickel powder, 0.5-2 parts of styrene-maleic anhydride copolyester, 0.5-2 parts of polyvinylpyrrolidone, 1-5 parts of silicone oil and 0.5-2 parts of aminopropyltrimethoxysilane by weight; the second electrothermal coating layer may include: 5-10 parts of graphene, 5-15 parts of carbon nano tubes, 0.5-2 parts of polyvinylpyrrolidone, 1-5 parts of silicone oil, 0.5-1 part of aluminum stearate and 0.5-2 parts of polydimethylsiloxane. The inventor finds that when the first electrothermal coating and the second electrothermal coating which are prepared from the raw material components and proportions are adopted, the conductivity, the heat transfer speed, the temperature distribution uniformity, the wear resistance and the bonding strength with the base material of the electrothermal coating formed on the surface of the base material can be further improved, the mechanical property of the electrothermal coating formed on the surface of the base material and the adhesive force between the electrothermal coating and the base material can be further improved, the bonding strength between the electrothermal coating and the base material can reach 20Mpa, the electrothermal coating is not easy to fall off or be damaged in the using process, and the working efficiency and the service life of the electrothermal coating formed on the surface of the base material can be further obviously improved.
According to a specific embodiment of the present invention, the first electrothermal coating comprises: 8 parts of graphene, 15 parts of nickel powder, 1 part of styrene-maleic anhydride copolyester, 1 part of polyvinylpyrrolidone, 3 parts of silicone oil and 1.5 parts of aminopropyltrimethoxysilane by weight; the second electrothermal coating comprises: 10 parts by weight of graphene, 10 parts by weight of carbon nanotubes, 1.5 parts by weight of polyvinylpyrrolidone, 3 parts by weight of silicone oil, 1 part by weight of aluminum stearate, and 1.5 parts by weight of polydimethylsiloxane. Therefore, the electrothermal coating formed on the surface of the base material has better conductivity, heat transfer speed, temperature distribution uniformity, wear resistance, bonding strength with the base material and the like, and further the working efficiency and the service life of the electrothermal coating formed on the surface of the base material can be further improved.
According to a second aspect of the present invention, there is also provided an electrothermal coating liquid set for forming the above electrothermal coating, comprising:
first electric heat coating liquid and second electric heat coating liquid, first electric heat coating liquid and second electric heat coating liquid are independently packed respectively, and wherein, first electric heat coating liquid is aqueous solution, and includes: 5-10 wt% of graphene, 10-15 wt% of nickel powder, 0.5-2 wt% of styrene-maleic anhydride copolyester, 0.5-2 wt% of polyvinylpyrrolidone, 1-5 wt% of silicone oil and 0.5-2 wt% of aminopropyltrimethoxysilane; the second electrothermal coating liquid is an aqueous solution and comprises: 5-10 wt% of graphene, 5-15 wt% of carbon nano tube, 0.5-2 wt% of polyvinylpyrrolidone, 1-5 wt% of silicone oil, 0.5-1 wt% of aluminum stearate and 0.5-2 wt% of polydimethylsiloxane.
According to the electric heating coating liquid suit for forming the electric heating coating, the raw material components and the proportion of the first electric heating coating liquid and the second electric heating coating liquid are respectively controlled, so that the electric heating coating which is uniform, compact, good in wear resistance and conductivity, high in heat transfer speed and uniform in temperature distribution can be formed on the surface of the base material, the mechanical property of the electric heating coating formed on the surface of the base material and the adhesive force between the electric heating coating and the base material can be obviously improved, the bonding strength between the electric heating coating and the base material can reach 20Mpa, the electric heating coating does not easily fall off or is not easily damaged in the using process, and the working efficiency and the service life of the formed electric heating coating can be obviously improved; in addition, the electrothermal coating liquid set for forming the electrothermal coating of the embodiment of the invention has wide applicability, and can be used for various base materials, in particular to pipelines for naval vessels and ships, satellite antennas, aircrafts, automobile parts and the like.
According to an embodiment of the present invention, the first electrothermal coating liquid is an aqueous solution and includes: 8 wt% of graphene, 15 wt% of nickel powder, 1 wt% of styrene-maleic anhydride copolyester, 1 wt% of polyvinylpyrrolidone, 3 wt% of silicone oil and 1.5 wt% of aminopropyltrimethoxysilane; the second electrothermal coating liquid is an aqueous solution and comprises: 10 wt% of graphene, 10 wt% of carbon nanotubes, 1.5 wt% of polyvinylpyrrolidone, 3 wt% of silicone oil, 1 wt% of aluminum stearate, and 1.5 wt% of polydimethylsiloxane. Therefore, the electric heating coating which is uniform, compact and uniform in temperature distribution can be further formed on the surface of the base material, the conductivity, the heat transfer speed, the mechanical property, the wear resistance and the weather resistance of the electric heating coating formed on the surface of the base material and the adhesive force between the electric heating coating and the base material can be obviously improved, the bonding strength between the electric heating coating and the base material is better, and the working efficiency and the service life of the electric heating coating formed on the surface of the base material can be further improved.
According to the third aspect of the present invention, the present invention also provides a method for forming an electrothermal coating on a substrate surface by using the electrothermal coating liquid for forming an electrothermal coating, comprising:
spraying a first electrothermal coating liquid on the surface of the base material, and drying to form a first electrothermal coating; and spraying a second electrothermal coating liquid on the surface of the first electrothermal coating, and drying to form a second electrothermal coating on the first electrothermal coating to obtain the electrothermal coating.
The method for forming the electrothermal coating on the surface of the base material in the embodiment of the invention has simple process, and can spray the first electrothermal coating liquid and the second electrothermal coating liquid on the base material in sequence, thereby being beneficial to forming the electrothermal coating which is uniform, compact, good in wear resistance and electrical conductivity, high in heat transfer speed and uniform in temperature distribution on the surface of the base material, and also being capable of remarkably improving the mechanical property of the electrothermal coating formed on the surface of the base material and the adhesive force between the electrothermal coating and the base material, enabling the bonding strength between the electrothermal coating and the base material to be up to 20Mpa, and being not easy to fall off or be damaged in the using process, and further being capable of remarkably improving the working efficiency and the service life of the electrothermal coating formed on the surface of the base material.
According to a specific embodiment of the present invention, the substrate may be at least one selected from the group consisting of a pipeline for a ship, a satellite antenna, an aircraft, and an automobile part. Therefore, the electrothermal coating which is uniform, compact, good in wear resistance and conductivity, high in heat transfer speed and uniform in temperature distribution can be formed on the surface of the base material, and the effect of efficient electric conduction and heating can be achieved on the surface of the base material.
Example 1
(1) Electric heating coating liquid suit composition
Including first electric heat coating liquid and second electric heat coating liquid, first electric heat coating liquid and second electric heat coating liquid are independently packed respectively, and wherein, first electric heat coating liquid is aqueous solution, and includes: 8 wt% graphene; 15 wt% nickel powder; 1 wt% of a styrene-maleic anhydride copolyester; 1 wt% of polyvinylpyrrolidone; 3 wt% of silicone oil; and 1.5 wt% aminopropyltrimethoxysilane, the second electrothermal coating liquid is an aqueous solution and comprises: 10 wt% graphene; 10 wt% carbon nanotubes; 1.5 wt% of polyvinylpyrrolidone; 3 wt% of silicone oil; 1 wt% of aluminium stearate; and 1.5 wt% polydimethylsiloxane.
(2) Method for forming electrothermal coating on surface of substrate
Spraying a first electrothermal coating liquid on the surface of the base material, and drying to form a first electrothermal coating; and spraying second electrothermal coating liquid on the surface of the first electrothermal coating, and drying to form a second electrothermal coating on the first electrothermal coating so as to obtain an electrothermal coating with the thickness of 0.1-0.5 mm.
(3) Evaluating the electrothermal coating obtained in the step (2)
1) Appearance of the coating: detecting the micro-cracks by using X-ray detection equipment, wherein the coating is required not to have cracks or fall off;
2) coating resistance: detecting the coating resistance by adopting a four-probe test method, wherein the required resistance value does not deviate from the required value by 5%;
3) coating thickness: adopting a thickness gauge to measure in multiple points, wherein the required thickness does not deviate from the required value by 5%;
4) porosity of the coating: selecting a small sample piece of 10mm multiplied by 10mm, and carrying out metallographic phase test to obtain that the porosity is not more than 5%;
5) bonding strength of the coating layer to the substrate: selecting a 10mm multiplied by 10mm small sample wafer, and testing the bonding strength, wherein the bonding strength is not lower than 10 MPa;
6) wear resistance: the abrasion resistance test is carried out according to the national standard GB/T1768-1979.
(4) The detection result of the electrothermal coating obtained in the step (2)
The detection result shows that the electric heating coating obtained in the step (2) has no crack or falling phenomenon in appearance, is tightly combined with the base material, and has the combination strength of 20 MPa; the resistivity at room temperature is 0.1 omega cm, the coating thickness is uniform, the porosity is qualified, and the wear resistance (750g, 500r) is 5mg/cm2。
Comparative example 1
(1) Electric heating coating liquid suit composition
Including first electric heat coating liquid and second electric heat coating liquid, first electric heat coating liquid and second electric heat coating liquid are independently packed respectively, and wherein, first electric heat coating liquid is aqueous solution, and includes: 0 wt% graphene; 23 wt% nickel powder; 1 wt% of a styrene-maleic anhydride copolyester; 1 wt% of polyvinylpyrrolidone; 3 wt% of silicone oil; and 1.5 wt% aminopropyltrimethoxysilane, the second electrothermal coating liquid is an aqueous solution and comprises: 10 wt% graphene; 10 wt% carbon nanotubes; 1.5 wt% of polyvinylpyrrolidone; 3 wt% of silicone oil; 1 wt% of aluminium stearate; and 1.5 wt% polydimethylsiloxane.
(2) The method for forming an electrothermal coating on the surface of a substrate was the same as in example 1.
(3) The electrothermal coatings obtained in step (2) were evaluated in the same manner as in example 1.
(4) The detection result of the electrothermal coating obtained in the step (2)
The detection result shows that the electric heating coating obtained in the step (2) has no crack or falling phenomenon in appearance, is tightly combined with the base material, and has the combination strength of 15 MPa; the resistivity at room temperature is 0.15 omega cm, the coating thickness is uniform, the porosity is qualified, and the wear resistance (750g, 500r) is 5mg/cm2。
Comparative example 2
(1) Electric heating coating liquid suit composition
Including first electric heat coating liquid and second electric heat coating liquid, first electric heat coating liquid and second electric heat coating liquid are independently packed respectively, and wherein, first electric heat coating liquid is aqueous solution, and includes: 8 wt% graphene; 15 wt% nickel powder; 1 wt% of a styrene-maleic anhydride copolyester; 1 wt% of polyvinylpyrrolidone; 3 wt% of silicone oil; and 1.5 wt% aminopropyltrimethoxysilane, the second electrothermal coating liquid is an aqueous solution and comprises: 20 wt% graphene; 0 wt% carbon nanotubes; 1.5 wt% of polyvinylpyrrolidone; 3 wt% of silicone oil; 1 wt% of aluminium stearate; and 1.5 wt% polydimethylsiloxane.
(2) The method for forming an electrothermal coating on the surface of a substrate was the same as in example 1.
(3) The electrothermal coatings obtained in step (2) were evaluated in the same manner as in example 1.
(4) The detection result of the electrothermal coating obtained in the step (2)
The detection result shows that the electric heating coating obtained in the step (2) has no crack or falling phenomenon in appearance, is tightly combined with the base material, and has the combination strength of 20 MPa; the resistivity at room temperature is 0.15 omega cm, the coating thickness is uniform, the porosity is qualified, and the wear resistance (750g, 500r) is 7mg/cm2。
Example 2
(1) Electric heating coating liquid suit composition
Including first electric heat coating liquid and second electric heat coating liquid, first electric heat coating liquid and second electric heat coating liquid are independently packed respectively, and wherein, first electric heat coating liquid is aqueous solution, and includes: 5 wt% graphene; 15 wt% nickel powder; 1 wt% of a styrene-maleic anhydride copolyester; 1 wt% of polyvinylpyrrolidone; 3 wt% of silicone oil; and 1.5 wt% aminopropyltrimethoxysilane, the second electrothermal coating liquid is an aqueous solution and comprises: 5 wt% graphene; 15 wt% carbon nanotubes; 1.5 wt% of polyvinylpyrrolidone; 3 wt% of silicone oil; 1 wt% of aluminium stearate; and 1.5 wt% polydimethylsiloxane.
(2) The method for forming an electrothermal coating on the surface of a substrate was the same as in example 1.
(3) The electrothermal coatings obtained in step (2) were evaluated in the same manner as in example 1.
(4) The detection result of the electrothermal coating obtained in the step (2)
The detection result shows that the electric heating coating obtained in the step (2) has no crack or falling phenomenon in appearance, is tightly combined with the base material, and has the combination strength of 19 MPa; the resistivity at room temperature is 0.1 omega cm, the coating thickness is uniform, the porosity is qualified, and the wear resistance (750g, 500r) is 5mg/cm2。
Example 3
(1) Electric heating coating liquid suit composition
Including first electric heat coating liquid and second electric heat coating liquid, first electric heat coating liquid and second electric heat coating liquid are independently packed respectively, and wherein, first electric heat coating liquid is aqueous solution, and includes: 10 wt% graphene; 10 wt% nickel powder; 1 wt% of a styrene-maleic anhydride copolyester; 1 wt% of polyvinylpyrrolidone; 3 wt% of silicone oil; and 1.5 wt% aminopropyltrimethoxysilane, the second electrothermal coating liquid is an aqueous solution and comprises: 10 wt% graphene; 5 wt% carbon nanotubes; 1.5 wt% of polyvinylpyrrolidone; 3 wt% of silicone oil; 1 wt% of aluminium stearate; and 1.5 wt% polydimethylsiloxane.
(2) The method for forming an electrothermal coating on the surface of a substrate was the same as in example 1.
(3) The electrothermal coatings obtained in step (2) were evaluated in the same manner as in example 1.
(4) The detection result of the electrothermal coating obtained in the step (2)
The detection result shows that the electric heating coating obtained in the step (2) has no crack or falling phenomenon in appearance, is tightly combined with the base material, and has the combination strength of 20 MPa; the resistivity at room temperature is 0.11 omega cm, the coating thickness is uniform, the porosity is qualified, and the wear resistance (750g, 500r) is 5mg/cm2。
Example 4
(1) Electric heating coating liquid suit composition
Including first electric heat coating liquid and second electric heat coating liquid, first electric heat coating liquid and second electric heat coating liquid are independently packed respectively, and wherein, first electric heat coating liquid is aqueous solution, and includes: 7 wt% graphene; 13 wt% nickel powder; 0.5 wt% of a styrene-maleic anhydride copolyester; 2 wt% of polyvinylpyrrolidone; 1 wt% of a silicone oil; and 0.5 wt% of aminopropyltrimethoxysilane, wherein the second electrothermal coating liquid is an aqueous solution and comprises: 8 wt% graphene; 15 wt% carbon nanotubes; 0.5 wt% of polyvinylpyrrolidone; 1 wt% of a silicone oil; 1 wt% of aluminium stearate; and 0.5 wt% of polydimethylsiloxane.
(2) The method for forming an electrothermal coating on the surface of a substrate was the same as in example 1.
(3) The electrothermal coatings obtained in step (2) were evaluated in the same manner as in example 1.
(4) The detection result of the electrothermal coating obtained in the step (2)
The detection result shows that the electric heating coating obtained in the step (2) has no crack or falling phenomenon in appearance, is tightly combined with the base material, and has the combination strength of 17 MPa; the resistivity at room temperature is 0.13 omega cm, the coating thickness is uniform, the porosity is qualified, and the wear resistance (750g, 500r) is 6mg/cm2。
Example 5
(1) Electric heating coating liquid suit composition
Including first electric heat coating liquid and second electric heat coating liquid, first electric heat coating liquid and second electric heat coating liquid are independently packed respectively, and wherein, first electric heat coating liquid is aqueous solution, and includes: 9 wt% graphene; 10 wt% nickel powder; 2 wt% of a styrene-maleic anhydride copolyester; 0.5 wt% of polyvinylpyrrolidone; 5 wt% of silicone oil; and 2 wt% of aminopropyltrimethoxysilane, wherein the second electrothermal coating liquid is an aqueous solution and comprises: 9 wt% graphene; 12 wt% carbon nanotubes; 2 wt% of polyvinylpyrrolidone; 5 wt% of silicone oil; 0.5 wt% of aluminum stearate; and 2 wt% of polydimethylsiloxane.
(2) The method for forming an electrothermal coating on the surface of a substrate was the same as in example 1.
(3) The electrothermal coatings obtained in step (2) were evaluated in the same manner as in example 1.
(4) The detection result of the electrothermal coating obtained in the step (2)
The detection result shows that the electric heating coating obtained in the step (2) has no crack or falling phenomenon in appearance, is tightly combined with the base material, and has the combination strength of 19 MPa; the resistivity at room temperature is 0.12 omega cm, the coating thickness is uniform, the porosity is qualified, and the wear resistance (750g, 500r) is 5mg/cm2。
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (6)
1. An electrothermal coating, comprising: a first electrothermal coating layer formed on the surface of the base material and a second electrothermal coating layer formed on the first electrothermal coating layer,
wherein the first electrothermal coating comprises: 5-10 parts of graphene, 10-15 parts of nickel powder, 0.5-2 parts of styrene-maleic anhydride copolyester, 0.5-2 parts of polyvinylpyrrolidone, 1-5 parts of silicone oil and 0.5-2 parts of aminopropyltrimethoxysilane by weight;
the second electrothermal coating comprises: 5-10 parts of graphene, 5-15 parts of carbon nano tubes, 0.5-2 parts of polyvinylpyrrolidone, 1-5 parts of silicone oil, 0.5-1 part of aluminum stearate and 0.5-2 parts of polydimethylsiloxane.
2. The electrothermal coating of claim 1,
the first electrothermal coating comprises:
8 parts by weight of graphene, and a solvent,
15 parts by weight of nickel powder,
1 part by weight of a styrene-maleic anhydride copolyester,
1 part by weight of polyvinylpyrrolidone,
3 parts by weight of a silicone oil,
1.5 parts by weight of aminopropyltrimethoxysilane;
the second electrothermal coating comprises:
10 parts by weight of graphene, and a solvent,
10 parts by weight of carbon nanotubes, and,
1.5 parts by weight of polyvinylpyrrolidone,
3 parts by weight of a silicone oil,
1 part by weight of aluminum stearate,
1.5 parts by weight of polydimethylsiloxane.
3. An electrothermal coating liquid set for forming an electrothermal coating according to claim 1, comprising: a first electrothermal coating liquid and a second electrothermal coating liquid, which are separately packaged, wherein,
the first electrothermal coating liquid is an aqueous solution and comprises:
5-10 wt% of graphene,
10-15 wt% of nickel powder,
0.5-2 wt% of styrene-maleic anhydride copolyester,
0.5-2 wt% of polyvinylpyrrolidone,
1 to 5% by weight of a silicone oil, and
0.5-2 wt% aminopropyltrimethoxysilane;
the second electrothermal coating liquid is an aqueous solution and comprises:
5-10 wt% of graphene,
5-15 wt% of carbon nanotubes,
0.5-2 wt% of polyvinylpyrrolidone,
1-5 wt% of a silicone oil,
0.5 to 1% by weight of aluminum stearate, and
0.5-2 wt% of polydimethylsiloxane.
4. The electro-thermal coating liquid set according to claim 3,
the first electrothermal coating liquid is an aqueous solution and comprises:
8 wt% of graphene, wherein the graphene is graphene,
15 wt% of nickel powder,
1 wt% of a styrene-maleic anhydride copolyester,
1% by weight of polyvinylpyrrolidone, based on the total weight of the composition,
3% by weight of a silicone oil, and
1.5 wt% aminopropyltrimethoxysilane;
the second electrothermal coating liquid is an aqueous solution and comprises:
10 wt% of graphene, based on the total weight of the graphene,
10 wt% of carbon nanotubes, based on the total weight of the carbon nanotubes,
1.5% by weight of polyvinylpyrrolidone,
3 wt% of a silicone oil,
1% by weight of aluminum stearate, and
1.5% by weight of polydimethylsiloxane.
5. A method for forming an electrothermal coating on a substrate surface by applying thereto an electrothermal coating solution according to claim 3 or 4, comprising:
spraying the first electrothermal coating liquid on the surface of a base material, and drying to form a first electrothermal coating;
and spraying the second electrothermal coating liquid on the surface of the first electrothermal coating, and drying to form a second electrothermal coating on the first electrothermal coating to obtain the electrothermal coating.
6. The method of claim 5, wherein the substrate is at least one selected from the group consisting of a pipeline for a naval vessel, a satellite antenna, an aircraft, and an automobile part.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110031864A (en) * | 2009-09-21 | 2011-03-29 | 삼성테크윈 주식회사 | Method for manufacturing graphene, graphene manufactured by the method, conductive film comprising the graphene, transparent electrode comprising the graphene, radiating or heating device comprising the graphene |
| CN102254584A (en) * | 2011-05-12 | 2011-11-23 | 中国科学院宁波材料技术与工程研究所 | General electronic paste based on graphene filler |
| CN105916222A (en) * | 2016-05-09 | 2016-08-31 | 苏州思创源博电子科技有限公司 | Far infrared electric heating film preparation method |
| CN106255238A (en) * | 2016-02-04 | 2016-12-21 | 济南圣泉集团股份有限公司 | A kind of Graphene thermo electric material and application thereof |
| CN107236382A (en) * | 2017-06-19 | 2017-10-10 | 新材料与产业技术北京研究院 | The Electric radiant Heating Film that water-based electric heating coating is prepared with composition and water-based electric heating coating and preparation method thereof and by it |
-
2018
- 2018-01-09 CN CN201810020112.1A patent/CN110016285B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110031864A (en) * | 2009-09-21 | 2011-03-29 | 삼성테크윈 주식회사 | Method for manufacturing graphene, graphene manufactured by the method, conductive film comprising the graphene, transparent electrode comprising the graphene, radiating or heating device comprising the graphene |
| CN102254584A (en) * | 2011-05-12 | 2011-11-23 | 中国科学院宁波材料技术与工程研究所 | General electronic paste based on graphene filler |
| CN106255238A (en) * | 2016-02-04 | 2016-12-21 | 济南圣泉集团股份有限公司 | A kind of Graphene thermo electric material and application thereof |
| CN105916222A (en) * | 2016-05-09 | 2016-08-31 | 苏州思创源博电子科技有限公司 | Far infrared electric heating film preparation method |
| CN107236382A (en) * | 2017-06-19 | 2017-10-10 | 新材料与产业技术北京研究院 | The Electric radiant Heating Film that water-based electric heating coating is prepared with composition and water-based electric heating coating and preparation method thereof and by it |
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