CN110016285A - Electro-thermal coatings and the electro-thermal coatings liquid suit and method for being used to form electro-thermal coatings - Google Patents
Electro-thermal coatings and the electro-thermal coatings liquid suit and method for being used to form electro-thermal coatings Download PDFInfo
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- CN110016285A CN110016285A CN201810020112.1A CN201810020112A CN110016285A CN 110016285 A CN110016285 A CN 110016285A CN 201810020112 A CN201810020112 A CN 201810020112A CN 110016285 A CN110016285 A CN 110016285A
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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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- 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
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2203/20—Applications use in electrical or conductive gadgets
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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 electro-thermal coatings and be used to form electro-thermal coatings electro-thermal coatings liquid suit and method.Wherein, electro-thermal coatings include: the first electro-thermal coatings for being formed in substrate surface and the second electro-thermal coatings being formed on the first electro-thermal coatings, include: graphene, nickel powder, styrene-maleic anhydride copolymer ester, polyvinylpyrrolidone, silicone oil and aminopropyl trimethoxysilane in the first electro-thermal coatings；It include: graphene, carbon nanotube, polyvinylpyrrolidone, silicone oil, aluminum stearate and dimethyl silicone polymer in second electro-thermal coatings.Electro-thermal coatings excellent electric conductivity proposed by the present invention, heat transfer rate are fast, uniformity of temperature profile, wearability are strong and higher with the bond strength of substrate.
Description
Technical field
The invention belongs to chemical engineering of materials fields, specifically, the present invention relates to electro-thermal coatings and being used to form electric heating painting
The electro-thermal coatings liquid suit and method of layer.
Background technique
Electric-heating coatings are a kind of new type functional coating with good electric conductivity and heating property, are widely used in giving birth to
Produce and life in, it is desirable that electric-heating coatings formed coating have good adhesive force, flexible resistance and realize at low voltage compared with
The ability of high heating temperature.Common electric-heating coatings resistance is all at tens ohm or more, if by addition conductive material come into one
Step reduces resistance, then the adhesive force of coating is deteriorated, and coating is easily peeled off, and the low-resistance effect of drop not only cannot be achieved, contract instead
Its short service life.Therefore, electro-thermal coatings electric conductivity, wearability and in terms of there is also very big improvement sky
Between.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to propose electro-thermal coatings and is used to form the electro-thermal coatings liquid suit and method of electro-thermal coatings, present invention proposition
Electro-thermal coatings excellent electric conductivity, heat transfer rate is fast, uniformity of temperature profile, wearability are strong and higher with the bond strength of substrate.
According to the first aspect of the invention, the invention proposes a kind of electro-thermal coatings, comprising:
The first electro-thermal coatings of substrate surface and the second electro-thermal coatings being formed on the first electro-thermal coatings are formed in,
It wherein, include: graphene, nickel powder, styrene-maleic anhydride copolymer ester, polyethylene in first electro-thermal coatings
Pyrrolidones, silicone oil and aminopropyl trimethoxysilane；
Include: in second electro-thermal coatings graphene, carbon nanotube, polyvinylpyrrolidone, silicone oil, aluminum stearate and
Dimethyl silicone polymer.
The electro-thermal coatings excellent electric conductivity of the above embodiment of the present invention, heat transfer rate be fast, uniformity of temperature profile, wearability are strong
And it is higher with the bond strength of substrate, it is not easily to fall off in use or be destroyed, it can be used for various substrates, especially naval vessels
Ship pipeline, satellite antenna, aircraft and automobile component etc. and then the effect for realizing conductive exothermal.
In addition, electro-thermal coatings according to the above embodiment of the present invention can also have the following additional technical features:
It in some embodiments of the invention, include: the graphene of 5-10 parts by weight, 10- in first electro-thermal coatings
The nickel powder of 15 parts by weight, the styrene-maleic anhydride copolymer ester of 0.5-2 parts by weight, the polyvinylpyrrolidine of 0.5-2 parts by weight
Ketone, the silicone oil of 1-5 parts by weight, the aminopropyl trimethoxysilane of 0.5-2 parts by weight；It include: 5- in second electro-thermal coatings
The graphene of 10 parts by weight, the carbon nanotube of 5-15 parts by weight, the polyvinylpyrrolidone of 0.5-2 parts by weight, 1-5 parts by weight
Silicone oil, the aluminum stearate of 0.5-1 parts by weight, the dimethyl silicone polymer of 0.5-2 parts by weight.Thus, it is possible to further increase
The electric conductivity of electro-thermal coatings that substrate surface is formed, heat transfer rate, uniformity of temperature profile degree, wearability and and substrate combination
Intensity etc..
It in some embodiments of the invention, include: the graphene of 8 parts by weight, 15 weight in first electro-thermal coatings
The nickel powder of part, the styrene-maleic anhydride copolymer ester of 1 parts by weight, the polyvinylpyrrolidone of 1 parts by weight, the silicon of 3 parts by weight
Oil, the aminopropyl trimethoxysilane of 1.5 parts by weight；It include: the graphene of 10 parts by weight, 10 weights in second electro-thermal coatings
The carbon nanotube of amount part, the polyvinylpyrrolidone of 1.5 parts by weight, the silicone oil of 3 parts by weight, the aluminum stearate of 1 parts by weight, 1.5
The dimethyl silicone polymer of parts by weight.Thus, it is possible to make the electro-thermal coatings formed in substrate surface that there is more preferably electric conductivity, biography
Thermal velocity, uniformity of temperature profile degree, wearability and with the bond strength of substrate etc..
According to the second aspect of the invention, the invention also provides a kind of electric heating paintings for being used to form above-mentioned electro-thermal coatings
Layer liquid suit, comprising:
First electro-thermal coatings liquid and the second electro-thermal coatings liquid, the first electro-thermal coatings liquid and the second electro-thermal coatings liquid
Independently pack, wherein
The first electro-thermal coatings liquid is aqueous solution, and includes: the graphene of 5-10wt%, the nickel powder of 10-15wt%,
The styrene-maleic anhydride copolymer ester of 0.5-2wt%, the polyvinylpyrrolidone of 0.5-2wt%, the silicone oil of 1-5wt%, and
The aminopropyl trimethoxysilane of 0.5-2wt%；
The second electro-thermal coatings liquid is aqueous solution, and includes: the graphene of 5-10wt%, the carbon nanometer of 5-15wt%
Pipe, the polyvinylpyrrolidone of 0.5-2wt%, the silicone oil of 1-5wt%, the aluminum stearate and 0.5-2wt% of 0.5-1wt%
Dimethyl silicone polymer.
The electro-thermal coatings liquid suit according to the above embodiment of the present invention for being used to form electro-thermal coatings, by controlling the respectively
The raw material components and proportion of one electro-thermal coatings liquid and the second electro-thermal coatings liquid not only contribute to form uniform, cause in substrate surface
Close, wearability and good conductivity, heat transfer rate be fast and the electro-thermal coatings of uniformity of temperature profile, moreover it is possible to significantly improve in substrate surface
The mechanical performance of the electro-thermal coatings of formation and the adhesive force between substrate, make the bond strength between electro-thermal coatings and substrate
It can be up to 20Mpa, and not easily to fall off in use or be destroyed, and then the electro-thermal coatings to be formed can be significantly improved
Working efficiency and service life；In addition, the electro-thermal coatings liquid suit for being used to form electro-thermal coatings of the above embodiment of the present invention is suitable
It is wide with property, it can be used for various substrates, especially naval vessels ship pipeline, satellite antenna, aircraft and automobile component etc..
In some embodiments of the invention, the first electro-thermal coatings liquid is aqueous solution, and includes: the graphite of 8wt%
Alkene, the nickel powder of 15wt%, the styrene-maleic anhydride copolymer ester of 1wt%, the polyvinylpyrrolidone of 1wt%, the silicon of 3wt%
The aminopropyl trimethoxysilane of oil and 1.5wt%, the second electro-thermal coatings liquid are aqueous solution, and include: 10wt%'s
Graphene, the carbon nanotube of 10wt%, the polyvinylpyrrolidone of 1.5wt%, the silicone oil of 3wt%, the aluminum stearate of 1wt%,
And the dimethyl silicone polymer of 1.5wt%.It not only can further be conducive to be formed in substrate surface as a result, uniform, fine and close
And the electro-thermal coatings of uniformity of temperature profile, moreover it is possible to significantly improve electric conductivity, the heat transfer speed of the electro-thermal coatings formed in substrate surface
Degree, mechanical performance, wearability, weatherability and the adhesive force between substrate.
According to the third aspect of the present invention, the above-mentioned electricity for being used to form electro-thermal coatings is utilized the invention also provides a kind of
Hot coating liquid is sleeved on the method that substrate surface forms electro-thermal coatings, comprising:
The first electro-thermal coatings liquid is sprayed to substrate surface, and is dried, to form the first electro-thermal coatings；
The second electro-thermal coatings liquid is sprayed to the surface of first electro-thermal coatings, and is dried, so as to described
The second electro-thermal coatings are formed on first electro-thermal coatings, obtain the electro-thermal coatings.
The above embodiment of the present invention forms the method not only simple process of electro-thermal coatings in substrate surface, but also can be according to
It is secondary to spray to the first electro-thermal coatings liquid and second coating liquid on substrate, not only contribute to as a result, substrate surface formed uniformly,
Fine and close, wearability and good conductivity, heat transfer rate be fast and the electro-thermal coatings of uniformity of temperature profile, moreover it is possible to significantly improve in substrate table
The mechanical performance for the electro-thermal coatings that face is formed and the adhesive force between substrate, keep the combination between electro-thermal coatings and substrate strong
Degree can be up to 20Mpa, and not easily to fall off in use or be destroyed, and then can significantly improve and be formed in substrate surface
Electro-thermal coatings working efficiency and service life.
In some embodiments of the invention, substrate is selected from naval vessels ship pipeline, satellite antenna, aircraft and automobile
At least one of component.Thus, it is possible to form electro-thermal coatings in above-mentioned substrate surface and realize conductive exothermal in substrate surface
Effect.
Specific embodiment
The embodiment of the present invention is described below in detail.The embodiments described below is exemplary, it is intended to for explaining this
Invention, and be not considered as limiting the invention.
According to the first aspect of the invention, the invention proposes a kind of electro-thermal coatings, comprising:
The first electro-thermal coatings of substrate surface and the second electro-thermal coatings being formed on the first electro-thermal coatings are formed in,
In, include: in the first electro-thermal coatings graphene, nickel powder, styrene-maleic anhydride copolymer ester, polyvinylpyrrolidone, silicone oil and
Aminopropyl trimethoxysilane；It include: graphene in second electro-thermal coatings, carbon nanotube, polyvinylpyrrolidone, silicone oil, hard
Resin acid aluminium and dimethyl silicone polymer.
The electro-thermal coatings excellent electric conductivity of the above embodiment of the present invention, heat transfer rate be fast, uniformity of temperature profile, wearability are strong
And it is higher with the bond strength of substrate, it is not easily to fall off in use or be destroyed, it can be used for various substrates, especially naval vessels
Ship pipeline, satellite antenna, aircraft and automobile component etc. and then the effect for realizing conductive exothermal.
It according to a particular embodiment of the invention, may include the graphene and 10- of 5-10 parts by weight in the first electro-thermal coatings
The nickel powder of 15 parts by weight.Graphene is the honeycomb flat film formed by carbon atom with sp2 hybrid form, is that only one is former
The quasi- two-dimensional material of molecular layers thick has very good intensity, flexible, conductive, thermally conductive, optical characteristics, passes through in the present invention
Using with said ratio graphene and nickel powder collectively as the conducting medium of the first electro-thermal coatings, can not only significantly improve
The electric conductivity of first electro-thermal coatings can also make the first electro-thermal coatings to be formed have preferable mechanical performance, and then can show
Write the conductive exothermal performance and service life for improving the electro-thermal coatings being subsequently formed.
It according to a particular embodiment of the invention, may include styrene-Malaysia of 0.5-2 parts by weight in the first electro-thermal coatings
The polyvinylpyrrolidone of anhydride copolymers ester and 0.5-2 parts by weight.Inventors have found that forming the first electro-thermal coatings in substrate surface
When, when simultaneously use styrene-maleic anhydride copolymer ester and polyvinylpyrrolidone, and control formed in substrate surface first
Styrene-maleic anhydride copolymer ester and polyvinylpyrrolidone are said ratio in electro-thermal coatings, not only contribute to each raw material group
It is point evenly dispersed in the first electro-thermal coatings liquid, and then the homogeneity and stability of the first electro-thermal coatings liquid are significantly improved, may be used also
So that the first electro-thermal coatings liquid has suitable viscosity, thus, it is possible to be conducive to be formed uniform, fine and close in substrate surface and lead
Uniform first electro-thermal coatings of electricity.
It according to a particular embodiment of the invention, may include the silicone oil and 0.5-2 weight of 1-5 parts by weight in the first electro-thermal coatings
Measure the aminopropyl trimethoxysilane of part.Inventors have found that when substrate surface forms the first electro-thermal coatings, by using silicone oil
And aminopropyl trimethoxysilane, and control silicone oil and aminopropyl trimethoxy in the first electro-thermal coatings that substrate surface is formed
Silane is said ratio, can not only effectively remove bubble that may be present in the first electro-thermal coatings liquid, and then dramatically increases
The mobility of one electro-thermal coatings liquid, the first electro-thermal coatings liquid are applied in the coating uniformity of substrate surface and the first electric heating of formation
The heating uniformity of layer, can also further enhance the adhesive force between the first electro-thermal coatings liquid and substrate surface.As a result, not only
Be conducive to form the first uniform, fine and close electro-thermal coatings in substrate surface, the first electro-thermal coatings to be formed can also be significantly improved
With the bond strength of substrate surface.
It according to a particular embodiment of the invention, may include the graphene and 5-15 of 5-10 parts by weight in the second electro-thermal coatings
The carbon nanotube of parts by weight.Inventors have found that aqueous carbon nano coating has good flexibility, foldability, portability, it can
Characteristic to assign substrate conductive exothermal as independent coating, and when carbon nanotube, graphene are powered, neighbouring object can be sent out
Heat, and carbon nanomaterial itself is still cold, meanwhile, it, can effective structure when carbon nanotube is used in conjunction with graphene
Build crosslinking conductive network.As a result, by selecting the graphene with said ratio and carbon nanotube collectively as the in the present invention
The electric conductivity and conductive exothermal of the second electro-thermal coatings to be formed can be not only effectively ensured in the conducting medium of two electro-thermal coatings liquid
Efficiency, can also further increase the mechanical performance and wearability of the second electro-thermal coatings, and then can significantly improve in substrate
The conductive exothermal performance and service life for the electro-thermal coatings that surface is formed.
It according to a particular embodiment of the invention, may include the polyethylene pyrrole of 0.5-2 parts by weight in the second electro-thermal coatings
Pyrrolidone.Inventors have found that being applied when forming the second electro-thermal coatings on the first electro-thermal coatings by the second electric heating that control is formed
Polyvinylpyrrolidone is said ratio in layer, not only the raw material components such as graphene and carbon nanotube can be made in the second electric heating
It is fully dispersed in coating solution, and then the homogeneity and stability of the second electro-thermal coatings liquid are significantly improved, the second electric heating can also be made
Coating solution has suitable viscosity, so as to further be conducive to form uniform, fine and close the on the first electro-thermal coatings surface
Two electro-thermal coatings.
It according to a particular embodiment of the invention, may include the silicone oil and 0.5-1 weight of 1-5 parts by weight in the second electro-thermal coatings
Measure the aluminum stearate of part.As a result, when forming the second electro-thermal coatings on the first electro-thermal coatings, the painting of the second electric heating can be effectively removed
Layer liquid in bubble that may be present, and then the mobility of the second electro-thermal coatings liquid can be dramatically increased, the second electro-thermal coatings liquid exists
The heating uniformity of second electro-thermal coatings of the coating uniformity and formation on the first electro-thermal coatings surface.
It according to a particular embodiment of the invention, may include: the graphene of 5-10 parts by weight, 10- in the first electro-thermal coatings
The nickel powder of 15 parts by weight, the styrene-maleic anhydride copolymer ester of 0.5-2 parts by weight, the polyvinylpyrrolidine of 0.5-2 parts by weight
Ketone, the silicone oil of 1-5 parts by weight, the aminopropyl trimethoxysilane of 0.5-2 parts by weight；It may include: 5- in second electro-thermal coatings
The graphene of 10 parts by weight, the carbon nanotube of 5-15 parts by weight, the polyvinylpyrrolidone of 0.5-2 parts by weight, 1-5 parts by weight
Silicone oil, the aluminum stearate of 0.5-1 parts by weight, the dimethyl silicone polymer of 0.5-2 parts by weight.Inventors have found that having when using
When the first electro-thermal coatings and the second electro-thermal coatings of above-mentioned raw materials component and proportion, it can not only further increase in substrate surface
Electric conductivity, heat transfer rate, uniformity of temperature profile degree, wearability and the bond strength with substrate of the electro-thermal coatings of formation, also
It can be further improved the mechanical performance in the electro-thermal coatings of substrate surface formation and the adhesive force between substrate, apply electric heating
Bond strength between layer and substrate can be up to 20Mpa, and not easily to fall off in use or be destroyed, and then can show
Write the working efficiency and service life for improving the electro-thermal coatings formed in substrate surface.
It according to a particular embodiment of the invention, include: the graphene of 8 parts by weight in the first electro-thermal coatings, 15 parts by weight
Nickel powder, the styrene-maleic anhydride copolymer ester of 1 parts by weight, the polyvinylpyrrolidone of 1 parts by weight, the silicone oil of 3 parts by weight, 1.5
The aminopropyl trimethoxysilane of parts by weight；It include: the graphene of 10 parts by weight in second electro-thermal coatings, the carbon of 10 parts by weight is received
Mitron, the polyvinylpyrrolidone of 1.5 parts by weight, the silicone oil of 3 parts by weight, the aluminum stearate of 1 parts by weight, 1.5 parts by weight are gathered
Dimethyl siloxane.Thus, it is possible to make the electro-thermal coatings formed in substrate surface that there is more preferably electric conductivity, heat transfer rate, temperature
It spends distribution consistency degree, wearability and with the bond strength of substrate etc., and then can further increase and be formed in substrate surface
The working efficiency and service life of electro-thermal coatings.
According to the second aspect of the invention, the invention also provides a kind of electric heating paintings for being used to form above-mentioned electro-thermal coatings
Layer liquid suit, comprising:
First electro-thermal coatings liquid and the second electro-thermal coatings liquid, the first electro-thermal coatings liquid and the second electro-thermal coatings liquid are independently
Packaging, wherein the first electro-thermal coatings liquid is aqueous solution, and includes: the graphene of 5-10wt%, the nickel powder of 10-15wt%, 0.5-
The styrene-maleic anhydride copolymer ester of 2wt%, the polyvinylpyrrolidone of 0.5-2wt%, the silicone oil and 0.5- of 1-5wt%
The aminopropyl trimethoxysilane of 2wt%；Second electro-thermal coatings liquid is aqueous solution, and includes: the graphene of 5-10wt%, 5-
The carbon nanotube of 15wt%, the polyvinylpyrrolidone of 0.5-2wt%, the silicone oil of 1-5wt%, the aluminum stearate of 0.5-1wt%,
And the dimethyl silicone polymer of 0.5-2wt%.
The electro-thermal coatings liquid suit according to the above embodiment of the present invention for being used to form electro-thermal coatings, by controlling the respectively
The raw material components and proportion of one electro-thermal coatings liquid and the second electro-thermal coatings liquid not only contribute to form uniform, cause in substrate surface
Close, wearability and good conductivity, heat transfer rate be fast and the electro-thermal coatings of uniformity of temperature profile, moreover it is possible to significantly improve in substrate surface
The mechanical performance of the electro-thermal coatings of formation and the adhesive force between substrate, make the bond strength between electro-thermal coatings and substrate
It can be up to 20Mpa, and not easily to fall off in use or be destroyed, and then the electro-thermal coatings to be formed can be significantly improved
Working efficiency and service life；In addition, the electro-thermal coatings liquid suit for being used to form electro-thermal coatings of the above embodiment of the present invention is suitable
It is wide with property, it can be used for various substrates, especially naval vessels ship pipeline, satellite antenna, aircraft and automobile component etc..
According to a particular embodiment of the invention, the first electro-thermal coatings liquid is aqueous solution, and includes: the graphene of 8wt%,
The nickel powder of 15wt%, the styrene-maleic anhydride copolymer ester of 1wt%, the polyvinylpyrrolidone of 1wt%, the silicone oil of 3wt%,
And the aminopropyl trimethoxysilane of 1.5wt%；Second electro-thermal coatings liquid is aqueous solution, and includes: the graphene of 10wt%,
The carbon nanotube of 10wt%, the polyvinylpyrrolidone of 1.5wt%, the silicone oil of 3wt%, the aluminum stearate of 1wt%, and
The dimethyl silicone polymer of 1.5wt%.It not only can further be conducive to be formed in substrate surface as a result, uniform, fine and close and warm
Spend the electro-thermal coatings that are evenly distributed, moreover it is possible to significantly improve electric conductivity, the heat transfer rate, machine of the electro-thermal coatings formed in substrate surface
Tool performance, wearability, weatherability and the adhesive force between substrate make bond strength between electro-thermal coatings and substrate more
It is good, and then the working efficiency and service life of the electro-thermal coatings formed in substrate surface can be further increased.
According to the third aspect of the present invention, the above-mentioned electricity for being used to form electro-thermal coatings is utilized the invention also provides a kind of
Hot coating liquid is sleeved on the method that substrate surface forms electro-thermal coatings, comprising:
The first electro-thermal coatings liquid is sprayed to substrate surface, and is dried, to form the first electro-thermal coatings；To the first electricity
The surface of hot coating sprays the second electro-thermal coatings liquid, and is dried, and applies to form the second electric heating on the first electro-thermal coatings
Layer obtains electro-thermal coatings.
The above embodiment of the present invention forms the method not only simple process of electro-thermal coatings in substrate surface, but also can be according to
It is secondary to spray to the first electro-thermal coatings liquid and second coating liquid on substrate, not only contribute to as a result, substrate surface formed uniformly,
Fine and close, wearability and good conductivity, heat transfer rate be fast and the electro-thermal coatings of uniformity of temperature profile, moreover it is possible to significantly improve in substrate table
The mechanical performance for the electro-thermal coatings that face is formed and the adhesive force between substrate, keep the combination between electro-thermal coatings and substrate strong
Degree can be up to 20Mpa, and not easily to fall off in use or be destroyed, and then can significantly improve and be formed in substrate surface
Electro-thermal coatings working efficiency and service life.
According to a particular embodiment of the invention, substrate can for selected from naval vessels ship pipeline, satellite antenna, aircraft and
At least one of automobile component.Thus, it is possible to form uniform, fine and close, wearability and good conductivity, biography in above-mentioned substrate surface
Thermal velocity is fast and the electro-thermal coatings of uniformity of temperature profile, and realizes the effect of high-effective conductive fever in substrate surface.
Embodiment 1
(1) electro-thermal coatings liquid suit composition
Including the first electro-thermal coatings liquid and the second electro-thermal coatings liquid, the first electro-thermal coatings liquid and the second electro-thermal coatings liquid difference
Independent packaging, wherein the first electro-thermal coatings liquid is aqueous solution, and includes: the graphene of 8wt%；The nickel powder of 15wt%；1wt%
Styrene-maleic anhydride copolymer ester；The polyvinylpyrrolidone of 1wt%；The silicone oil of 3wt%；And the aminopropyl of 1.5wt%
Trimethoxy silane, the second electro-thermal coatings liquid are aqueous solution, and include: the graphene of 10wt%；The carbon nanotube of 10wt%；
The polyvinylpyrrolidone of 1.5wt%；The silicone oil of 3wt%；The aluminum stearate of 1wt%；And the polydimethylsiloxanes of 1.5wt%
Alkane.
(2) method for forming electro-thermal coatings in substrate surface
The first electro-thermal coatings liquid is sprayed to substrate surface, and is dried, to form the first electro-thermal coatings；To the first electricity
The surface of hot coating sprays the second electro-thermal coatings liquid, and is dried, and applies to form the second electric heating on the first electro-thermal coatings
Layer obtains the electro-thermal coatings with a thickness of 0.1~0.5mm.
(3) electro-thermal coatings obtained to step (2) are evaluated
1) appearance of coat: fine crack is detected using X-ray detection equipment, it is desirable that coating should not have crackle or obscission；
2) coating resistance: four probe methods are taken to detect coating resistance, it is desirable that resistance value must not deviate required value
5%；
3) coating layer thickness: calibrator multimetering is used, it is desirable that thickness must not deviate the 5% of required value；
4) coating porosity: choosing the small print of 10mm × 10mm, carries out metallographic test, measuring porosity must not exceed 5%；
5) coating and substrate bond strength: the small print of 10mm × 10mm is chosen, does bond strength test, bond strength must not
Lower than 10MPa；
6) wearability: wearability test is carried out according to national standard GB/T1768-1979.
(4) testing result for the electro-thermal coatings that step (2) obtains
The electro-thermal coatings appearance that testing result shows that step (2) obtains does not have crackle or obscission, and in conjunction with substrate
Closely, bond strength 20MPa；Resistivity at room temperature is that 0.1 Ω cm, uniform coating thickness, and porosity are qualified, wear-resisting
Performance (750g, 500r) is 5mg/cm2。
Comparative example 1
(1) electro-thermal coatings liquid suit composition
Including the first electro-thermal coatings liquid and the second electro-thermal coatings liquid, the first electro-thermal coatings liquid and the second electro-thermal coatings liquid difference
Independent packaging, wherein the first electro-thermal coatings liquid is aqueous solution, and includes: the graphene of 0wt%；The nickel powder of 23wt%；1wt%
Styrene-maleic anhydride copolymer ester；The polyvinylpyrrolidone of 1wt%；The silicone oil of 3wt%；And the aminopropyl of 1.5wt%
Trimethoxy silane, the second electro-thermal coatings liquid are aqueous solution, and include: the graphene of 10wt%；The carbon nanotube of 10wt%；
The polyvinylpyrrolidone of 1.5wt%；The silicone oil of 3wt%；The aluminum stearate of 1wt%；And the polydimethylsiloxanes of 1.5wt%
Alkane.
(2) method for forming electro-thermal coatings in substrate surface, with embodiment 1.
(3) electro-thermal coatings obtained to step (2) are evaluated, with embodiment 1.
(4) testing result for the electro-thermal coatings that step (2) obtains
The electro-thermal coatings appearance that testing result shows that step (2) obtains does not have crackle or obscission, and in conjunction with substrate
Closely, bond strength 15MPa；Resistivity at room temperature is that 0.15 Ω cm, uniform coating thickness, and porosity are qualified, resistance to
Grinding performance (750g, 500r) is 5mg/cm2。
Comparative example 2
(1) electro-thermal coatings liquid suit composition
Including the first electro-thermal coatings liquid and the second electro-thermal coatings liquid, the first electro-thermal coatings liquid and the second electro-thermal coatings liquid difference
Independent packaging, wherein the first electro-thermal coatings liquid is aqueous solution, and includes: the graphene of 8wt%；The nickel powder of 15wt%；1wt%
Styrene-maleic anhydride copolymer ester；The polyvinylpyrrolidone of 1wt%；The silicone oil of 3wt%；And the aminopropyl of 1.5wt%
Trimethoxy silane, the second electro-thermal coatings liquid are aqueous solution, and include: the graphene of 20wt%；The carbon nanotube of 0wt%；
The polyvinylpyrrolidone of 1.5wt%；The silicone oil of 3wt%；The aluminum stearate of 1wt%；And the polydimethylsiloxanes of 1.5wt%
Alkane.
(2) method for forming electro-thermal coatings in substrate surface, with embodiment 1.
(3) electro-thermal coatings obtained to step (2) are evaluated, with embodiment 1.
(4) testing result for the electro-thermal coatings that step (2) obtains
The electro-thermal coatings appearance that testing result shows that step (2) obtains does not have crackle or obscission, and in conjunction with substrate
Closely, bond strength 20MPa；Resistivity at room temperature is that 0.15 Ω cm, uniform coating thickness, and porosity are qualified, resistance to
Grinding performance (750g, 500r) is 7mg/cm2。
Embodiment 2
(1) electro-thermal coatings liquid suit composition
Including the first electro-thermal coatings liquid and the second electro-thermal coatings liquid, the first electro-thermal coatings liquid and the second electro-thermal coatings liquid difference
Independent packaging, wherein the first electro-thermal coatings liquid is aqueous solution, and includes: the graphene of 5wt%；The nickel powder of 15wt%；1wt%
Styrene-maleic anhydride copolymer ester；The polyvinylpyrrolidone of 1wt%；The silicone oil of 3wt%；And the aminopropyl of 1.5wt%
Trimethoxy silane, the second electro-thermal coatings liquid are aqueous solution, and include: the graphene of 5wt%；The carbon nanotube of 15wt%；
The polyvinylpyrrolidone of 1.5wt%；The silicone oil of 3wt%；The aluminum stearate of 1wt%；And the polydimethylsiloxanes of 1.5wt%
Alkane.
(2) method for forming electro-thermal coatings in substrate surface, with embodiment 1.
(3) electro-thermal coatings obtained to step (2) are evaluated, with embodiment 1.
(4) testing result for the electro-thermal coatings that step (2) obtains
The electro-thermal coatings appearance that testing result shows that step (2) obtains does not have crackle or obscission, and in conjunction with substrate
Closely, bond strength 19MPa；Resistivity at room temperature is that 0.1 Ω cm, uniform coating thickness, and porosity are qualified, wear-resisting
Performance (750g, 500r) is 5mg/cm2。
Embodiment 3
(1) electro-thermal coatings liquid suit composition
Including the first electro-thermal coatings liquid and the second electro-thermal coatings liquid, the first electro-thermal coatings liquid and the second electro-thermal coatings liquid difference
Independent packaging, wherein the first electro-thermal coatings liquid is aqueous solution, and includes: the graphene of 10wt%；The nickel powder of 10wt%；1wt%
Styrene-maleic anhydride copolymer ester；The polyvinylpyrrolidone of 1wt%；The silicone oil of 3wt%；And the aminopropyl of 1.5wt%
Trimethoxy silane, the second electro-thermal coatings liquid are aqueous solution, and include: the graphene of 10wt%；The carbon nanotube of 5wt%；
The polyvinylpyrrolidone of 1.5wt%；The silicone oil of 3wt%；The aluminum stearate of 1wt%；And the polydimethylsiloxanes of 1.5wt%
Alkane.
(2) method for forming electro-thermal coatings in substrate surface, with embodiment 1.
(3) electro-thermal coatings obtained to step (2) are evaluated, with embodiment 1.
(4) testing result for the electro-thermal coatings that step (2) obtains
The electro-thermal coatings appearance that testing result shows that step (2) obtains does not have crackle or obscission, and in conjunction with substrate
Closely, bond strength 20MPa；Resistivity at room temperature is that 0.11 Ω cm, uniform coating thickness, and porosity are qualified, resistance to
Grinding performance (750g, 500r) is 5mg/cm2。
Embodiment 4
(1) electro-thermal coatings liquid suit composition
Including the first electro-thermal coatings liquid and the second electro-thermal coatings liquid, the first electro-thermal coatings liquid and the second electro-thermal coatings liquid difference
Independent packaging, wherein the first electro-thermal coatings liquid is aqueous solution, and includes: the graphene of 7wt%；The nickel powder of 13wt%；
The styrene-maleic anhydride copolymer ester of 0.5wt%；The polyvinylpyrrolidone of 2wt%；The silicone oil of 1wt%；And 0.5wt%
Aminopropyl trimethoxysilane, it and includes: the graphene of 8wt% that the second electro-thermal coatings liquid, which is aqueous solution,；The carbon of 15wt% is received
Mitron；The polyvinylpyrrolidone of 0.5wt%；The silicone oil of 1wt%；The aluminum stearate of 1wt%；And the poly- diformazan of 0.5wt%
Radical siloxane.
(2) method for forming electro-thermal coatings in substrate surface, with embodiment 1.
(3) electro-thermal coatings obtained to step (2) are evaluated, with embodiment 1.
(4) testing result for the electro-thermal coatings that step (2) obtains
The electro-thermal coatings appearance that testing result shows that step (2) obtains does not have crackle or obscission, and in conjunction with substrate
Closely, bond strength 17MPa；Resistivity at room temperature is that 0.13 Ω cm, uniform coating thickness, and porosity are qualified, resistance to
Grinding performance (750g, 500r) is 6mg/cm2。
Embodiment 5
(1) electro-thermal coatings liquid suit composition
Including the first electro-thermal coatings liquid and the second electro-thermal coatings liquid, the first electro-thermal coatings liquid and the second electro-thermal coatings liquid difference
Independent packaging, wherein the first electro-thermal coatings liquid is aqueous solution, and includes: the graphene of 9wt%；The nickel powder of 10wt%；2wt%
Styrene-maleic anhydride copolymer ester；The polyvinylpyrrolidone of 0.5wt%；The silicone oil of 5wt%；And the aminopropyl of 2wt%
Trimethoxy silane, the second electro-thermal coatings liquid are aqueous solution, and include: the graphene of 9wt%；The carbon nanotube of 12wt%；
The polyvinylpyrrolidone of 2wt%；The silicone oil of 5wt%；The aluminum stearate of 0.5wt%；And the polydimethylsiloxanes of 2wt%
Alkane.
(2) method for forming electro-thermal coatings in substrate surface, with embodiment 1.
(3) electro-thermal coatings obtained to step (2) are evaluated, with embodiment 1.
(4) testing result for the electro-thermal coatings that step (2) obtains
The electro-thermal coatings appearance that testing result shows that step (2) obtains does not have crackle or obscission, and in conjunction with substrate
Closely, bond strength 19MPa；Resistivity at room temperature is that 0.12 Ω cm, uniform coating thickness, and porosity are qualified, resistance to
Grinding performance (750g, 500r) is 5mg/cm2。
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It can be combined in any suitable manner in a or multiple embodiment or examples.In addition, without conflicting with each other, the technology of this field
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined by personnel
And combination.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (7)
1. a kind of electro-thermal coatings characterized by comprising be formed in the first electro-thermal coatings of substrate surface and be formed in the first electricity
The second electro-thermal coatings on hot coating,
It wherein, include: graphene, nickel powder, styrene-maleic anhydride copolymer ester, polyvinyl pyrrole in first electro-thermal coatings
Alkanone, silicone oil and aminopropyl trimethoxysilane；
It include: graphene, carbon nanotube, polyvinylpyrrolidone, silicone oil, aluminum stearate and poly- two in second electro-thermal coatings
Methylsiloxane.
2. electro-thermal coatings according to claim 1, which is characterized in that
Include: in first electro-thermal coatings
The graphene of 5-10 parts by weight,
The nickel powder of 10-15 parts by weight,
The styrene-maleic anhydride copolymer ester of 0.5-2 parts by weight,
The polyvinylpyrrolidone of 0.5-2 parts by weight,
The silicone oil of 1-5 parts by weight,
The aminopropyl trimethoxysilane of 0.5-2 parts by weight；
Include: in second electro-thermal coatings
The graphene of 5-10 parts by weight,
The carbon nanotube of 5-15 parts by weight,
The polyvinylpyrrolidone of 0.5-2 parts by weight,
The silicone oil of 1-5 parts by weight,
The aluminum stearate of 0.5-1 parts by weight,
The dimethyl silicone polymer of 0.5-2 parts by weight.
3. electro-thermal coatings according to claim 2, which is characterized in that
Include: in first electro-thermal coatings
The graphene of 8 parts by weight,
The nickel powder of 15 parts by weight,
The styrene-maleic anhydride copolymer ester of 1 parts by weight,
The polyvinylpyrrolidone of 1 parts by weight,
The silicone oil of 3 parts by weight,
The aminopropyl trimethoxysilane of 1.5 parts by weight；
Include: in second electro-thermal coatings
The graphene of 10 parts by weight,
The carbon nanotube of 10 parts by weight,
The polyvinylpyrrolidone of 1.5 parts by weight,
The silicone oil of 3 parts by weight,
The aluminum stearate of 1 parts by weight,
The dimethyl silicone polymer of 1.5 parts by weight.
4. a kind of electro-thermal coatings liquid suit for being used to form electro-thermal coatings described in claim 2 characterized by comprising first
Electro-thermal coatings liquid and the second electro-thermal coatings liquid, the first electro-thermal coatings liquid and the second electro-thermal coatings liquid independently wrap
Dress, wherein
The first electro-thermal coatings liquid is aqueous solution, and includes:
The graphene of 5-10wt%,
The nickel powder of 10-15wt%,
The styrene-maleic anhydride copolymer ester of 0.5-2wt%,
The polyvinylpyrrolidone of 0.5-2wt%,
The silicone oil of 1-5wt%, and
The aminopropyl trimethoxysilane of 0.5-2wt%；
The second electro-thermal coatings liquid is aqueous solution, and includes:
The graphene of 5-10wt%,
The carbon nanotube of 5-15wt%,
The polyvinylpyrrolidone of 0.5-2wt%,
The silicone oil of 1-5wt%,
The aluminum stearate of 0.5-1wt%, and
The dimethyl silicone polymer of 0.5-2wt%.
5. electro-thermal coatings liquid suit according to claim 4, which is characterized in that
The first electro-thermal coatings liquid is aqueous solution, and includes:
The graphene of 8wt%,
The nickel powder of 15wt%,
The styrene-maleic anhydride copolymer ester of 1wt%,
The polyvinylpyrrolidone of 1wt%,
The silicone oil of 3wt%, and
The aminopropyl trimethoxysilane of 1.5wt%；
The second electro-thermal coatings liquid is aqueous solution, and includes:
The graphene of 10wt%,
The carbon nanotube of 10wt%,
The polyvinylpyrrolidone of 1.5wt%,
The silicone oil of 3wt%,
The aluminum stearate of 1wt%, and
The dimethyl silicone polymer of 1.5wt%.
6. a kind of be sleeved on the method that substrate surface forms electro-thermal coatings using electro-thermal coatings liquid described in claim 4 or 5,
It is characterized in that, comprising:
The first electro-thermal coatings liquid is sprayed to substrate surface, and is dried, to form the first electro-thermal coatings；
The second electro-thermal coatings liquid is sprayed to the surface of first electro-thermal coatings, and is dried, so as to described first
The second electro-thermal coatings are formed on electro-thermal coatings, obtain the electro-thermal coatings.
7. according to the method described in claim 6, it is characterized in that, the substrate is selected from naval vessels ship pipeline, satellite day
At least one of line, aircraft and automobile component.
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