CN112694812A - Preparation method of carbon nano tube radiation heat dissipation coating - Google Patents
Preparation method of carbon nano tube radiation heat dissipation coating Download PDFInfo
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- CN112694812A CN112694812A CN202011409051.1A CN202011409051A CN112694812A CN 112694812 A CN112694812 A CN 112694812A CN 202011409051 A CN202011409051 A CN 202011409051A CN 112694812 A CN112694812 A CN 112694812A
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- C09D109/00—Coating compositions based on homopolymers or copolymers of conjugated diene hydrocarbons
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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
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- 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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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
Abstract
The invention discloses a preparation method of a carbon nano tube radiation heat dissipation coating, which belongs to the field of radiation heat dissipation coatings and provides the following scheme that raw materials are prepared, wherein the raw materials comprise 25-40 parts of base resin, 1-3 parts of nano tubes, 35-50 parts of water, 1-4 parts of wetting agent, 2-8 parts of filler, 0.3-4 parts of dispersing agent, 0.5-5 parts of defoaming agent, 1-4 parts of nano radiation heat dissipation powder, 10-30 parts of auxiliary agent, 30-45 parts of solvent, 2.4-3.2 parts of heat stabilizer, 1.5-3.5 parts of antibacterial agent, 2.6-4 parts of antioxidant, 10-20 parts of nano silicon dioxide and 20-100 parts of solvent, the nano tubes in parts by weight are prepared into a mixed aqueous solution with the carbon nano tube content of 3.0% and the solid content of 5.0%, a small amount of wetting agent is added, and the mixed solution is soaked for. The invention can obviously improve the heat conduction efficiency of electronic devices and the like, has wide market prospect, low production cost, simpler preparation method and process flow and simple and convenient construction operation.
Description
Technical Field
The invention relates to the technical field of radiation heat dissipation coatings, in particular to a preparation method of a carbon nano tube radiation heat dissipation coating.
Background
The carbon nano tube is used as a nano material with excellent comprehensive performance, has a superfine nano-scale structure, has an ultra-large specific surface area, has very high emissivity, and the radiation coefficient of the arrayed carbon nano tube can even reach 0.99, so the carbon nano tube is the material with the highest radiation rate at present; meanwhile, the carbon nanotube has very high thermal conductivity in the axial direction. Therefore, the coating prepared by using the carbon nano tube as the filler has high radiance and thermal conductivity.
With the rapid development of electronic technology and the increasing consumption demand of people, electronic products are developing towards the directions of high power, high integration and miniaturization, so that the working temperature of electronic devices is higher and higher, and if the heat dissipation capability is insufficient, the working temperature of the electronic devices is greatly increased, and the performance, the stability and the service life of the devices are directly influenced. The heat dissipation metal foil prepared by coating the carbon nano tube radiation heat dissipation coating on the surfaces of copper and aluminum foil is already applied in the fields of flat panel displays and various electronic devices, and the heat dissipation performance is obviously improved. However, the relationship between the carbon nanotube structure and its heat dissipation performance is still lack of systematic research, and many scientific and technical problems still need to be studied deeply.
Therefore, the invention provides a preparation method of the carbon nano tube radiation heat dissipation coating.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a preparation method of a carbon nano tube radiation heat-dissipation coating.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of a carbon nano tube radiation heat dissipation coating comprises the following steps;
s1, preparing raw materials, 25-40 parts of base resin, 1-3 parts of nano-tube, 35-50 parts of water, 1-4 parts of wetting agent, 2-8 parts of filler, 0.3-4 parts of dispersing agent, 0.5-5 parts of defoaming agent, 1-4 parts of nano-radiation heat dissipation powder, 10-30 parts of auxiliary agent, 30-45 parts of solvent, 2.4-3.2 parts of heat stabilizer, 1.5-3.5 parts of antibacterial agent, 2.6-4 parts of antioxidant, 10-20 parts of nano-silica and 20-100 parts of solvent.
S2, preparing the nanotubes in parts by weight into a mixed aqueous solution with the carbon nanotube content of 3.0% and the solid content of 5.0%, adding a small amount of wetting agent, soaking for 12h, and mixing the solution.
S3, grinding the mixed solution A in the S in a sand mill for 30-60 min to form uniform carbon nanotube dispersion liquid;
s4, adding the base resin, the filler, the solvent, the nano silicon dioxide, the dispersing agent, the defoaming agent, the heat stabilizer, the antibacterial agent, the antioxidant, the solvent and the auxiliary agent into the carbon nano tube dispersion liquid in the S3, placing the mixture into a reaction kettle, stirring the mixture for 2 to 3 hours, and obtaining the radiation heat dissipation coating.
Preferably, in the S1, raw materials are prepared, wherein the raw materials comprise 30-35 parts of base resin, 1.5-2 parts of nanotubes, 40-45 parts of water, 2-3 parts of wetting agent, 6-7 parts of filler, 0.5-2.8 parts of dispersing agent, 1-4 parts of defoaming agent, 2.5-3 parts of nano radiation heat dissipation powder, 13-27 parts of auxiliary agent, 25-40 parts of solvent, 2-3 parts of heat stabilizer, 1.2-3.2 parts of antibacterial agent, 3-4 parts of antioxidant, 12-18 parts of nano silicon dioxide and 30-80 parts of solvent.
Preferably, in S1, raw materials are prepared, including 32 parts of base resin, 1.5 parts of nanotube, 43 parts of water, 3 parts of wetting agent, 6 parts of filler, 2 parts of dispersant, 3 parts of defoamer, 2 parts of nano radiation heat dissipation powder, 20 parts of assistant, 35 parts of solvent, 3 parts of heat stabilizer, 1.5 parts of antibacterial agent, 3.5 parts of antioxidant, 14 parts of nano silicon dioxide, and 40 parts of solvent.
Preferably, the solvent in S1 is one or a mixture of any of acetone, butanone, methyl isobutyl ketone, cyclohexanone, isophorone, diisobutyl ketone, and methyl n-amyl ketone.
Preferably, the base resin in S1 is composed of one or more of epoxy resin, aliphatic modified epoxy resin, furan modified epoxy resin, silicone rubber, polybutadiene, polyurethane, and fluorocarbon resin.
Preferably, the reaction temperature in S2 is 120 ℃ to 200 ℃.
Preferably, in S1, the aqueous polyurethane is used as a film-forming substance, and the content of the carbon nanotubes in the film-forming substance is controlled to be 10%.
Preferably, the reaction kettle in the S2 adopts a stainless steel container.
Compared with the prior art, the invention has the beneficial effects that:
the radiation heat-dissipation coating prepared by the technical scheme of the invention can improve the heat-dissipation efficiency, and the prepared heat-conduction coating has extremely excellent heat-conduction performance, can obviously improve the heat-conduction efficiency of electronic devices and the like, and has the advantages of wide market prospect, low production cost, simple preparation method and process flow and simple and convenient construction operation.
In the invention, the radiation heat dissipation coating is obtained by 25-40 parts of base resin, 1-3 parts of nanotube, 35-50 parts of water and 1-4 parts of wetting agent, has an outward radiation heat dissipation function, and can effectively dissipate heat in an electronic device into the outside air, thereby reducing the surface temperature of the electronic device, prolonging the service life, having good heat dissipation effect and being suitable for popularization.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example one
The invention provides a preparation method of a carbon nano tube radiation heat dissipation coating, which comprises the following steps;
s1, preparing raw materials, 25 parts of base resin, 1 part of nano tube, 35 parts of water, 1 part of wetting agent, 2 parts of filler, 0.3 part of dispersing agent, 0.5 part of defoaming agent, 1 part of nano radiation heat dissipation powder, 10 parts of auxiliary agent, 30 parts of solvent, 2.4 parts of heat stabilizer, 1.5 parts of antibacterial agent, 2.6 parts of antioxidant, 10 parts of nano silicon dioxide and 20 parts of solvent.
S2, preparing the nanotubes in parts by weight into a mixed aqueous solution with the carbon nanotube content of 3.0% and the solid content of 5.0%, adding a small amount of wetting agent, soaking for 12h, and mixing the solution.
S3, grinding the mixed solution A in the S in a sand mill for 30-60 min to form uniform carbon nanotube dispersion liquid;
s4, adding the base resin, the filler, the solvent, the nano silicon dioxide, the dispersing agent, the defoaming agent, the heat stabilizer, the antibacterial agent, the antioxidant, the solvent and the auxiliary agent into the carbon nano tube dispersion liquid in the S3, placing the mixture into a reaction kettle, stirring the mixture for 2 to 3 hours, and obtaining the radiation heat dissipation coating.
Example two
The invention provides a preparation method of a carbon nano tube radiation heat dissipation coating, which comprises the following steps;
s1, preparing raw materials, namely 40 parts of base resin, 8 parts of filler, 4 parts of dispersing agent, 5 parts of defoaming agent, 4 parts of nano radiation heat dissipation powder, 30 parts of auxiliary agent, 45 parts of solvent, 3.2 parts of heat stabilizer, 3.5 parts of antibacterial agent, 4 parts of antioxidant, 20 parts of nano silicon dioxide and 100 parts of solvent.
S2, preparing the nanotubes in parts by weight into a mixed aqueous solution with the carbon nanotube content of 3.0% and the solid content of 5.0%, adding a small amount of wetting agent, soaking for 12h, and mixing the solution.
S3, grinding the mixed solution A in the S in a sand mill for 30-60 min to form uniform carbon nanotube dispersion liquid;
s4, adding the base resin, the filler, the solvent, the nano silicon dioxide, the dispersing agent, the defoaming agent, the heat stabilizer, the antibacterial agent, the antioxidant, the solvent and the auxiliary agent into the carbon nano tube dispersion liquid in the S3, placing the mixture into a reaction kettle, stirring the mixture for 2 to 3 hours, and obtaining the radiation heat dissipation coating.
EXAMPLE III
2. The invention provides the following steps;
s1, preparing raw materials, 32 parts of base resin, 3 parts of nanotubes, 50 parts of water, 4 parts of wetting agent, 6 parts of filler, 2 parts of dispersing agent, 3 parts of defoaming agent, 2 parts of nano radiation heat dissipation powder, 20 parts of auxiliary agent, 35 parts of solvent, 3 parts of thermal stabilizer, 1.5 parts of antibacterial agent, 3.5 parts of antioxidant, 14 parts of nano silicon dioxide and 40 parts of solvent.
S2, preparing the nanotubes in parts by weight into a mixed aqueous solution with the carbon nanotube content of 3.0% and the solid content of 5.0%, adding a small amount of wetting agent, soaking for 12h, and mixing the solution.
S3, grinding the mixed solution A in the S in a sand mill for 30-60 min to form uniform carbon nanotube dispersion liquid;
s4, adding the base resin, the filler, the solvent, the nano silicon dioxide, the dispersing agent, the defoaming agent, the heat stabilizer, the antibacterial agent, the antioxidant, the solvent and the auxiliary agent into the carbon nano tube dispersion liquid in the S3, placing the mixture into a reaction kettle, stirring the mixture for 2 to 3 hours, and obtaining the radiation heat dissipation coating.
The coatings prepared by the invention were subjected to a radiation heat dissipation test to obtain the following table:
the determination results show that: the emissivity of a heat dissipation coating taking carbon nanotubes as filler is generally high, the emissivity of a coating taking NC 7000, FT 9000, TINM6 and G-TINM8 as filler is respectively 0.931, 0.932 and 0.935, and gradually decreases along with the increase of the pipe diameter of the carbon nanotubes, but the emissivity of a graphitized G-TINM8 carbon nanotube is remarkably improved to reach 0.977, and the prepared heat conduction coating has extremely excellent heat conduction performance, can remarkably improve the heat conduction efficiency of electronic devices and the like, and has a wide market prospect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent substitutions or changes according to the technical solution and the inventive concept of the present invention should be covered by the scope of the present invention.
Claims (8)
1. A preparation method of a carbon nano tube radiation heat dissipation coating is characterized by comprising the following steps;
s1, preparing raw materials, 25-40 parts of base resin, 1-3 parts of nano-tube, 35-50 parts of water, 1-4 parts of wetting agent, 2-8 parts of filler, 0.3-4 parts of dispersing agent, 0.5-5 parts of defoaming agent, 1-4 parts of nano-radiation heat dissipation powder, 10-30 parts of auxiliary agent, 30-45 parts of solvent, 2.4-3.2 parts of heat stabilizer, 1.5-3.5 parts of antibacterial agent, 2.6-4 parts of antioxidant, 10-20 parts of nano-silica and 20-100 parts of solvent.
S2, preparing the nanotubes in parts by weight into a mixed aqueous solution with the carbon nanotube content of 3.0% and the solid content of 5.0%, adding a small amount of wetting agent, soaking for 12h, and mixing the solution.
S3, grinding the mixed solution A in the S in a sand mill for 30-60 min to form uniform carbon nanotube dispersion liquid;
s4, adding the base resin, the filler, the solvent, the nano silicon dioxide, the dispersing agent, the defoaming agent, the heat stabilizer, the antibacterial agent, the antioxidant, the solvent and the auxiliary agent into the carbon nano tube dispersion liquid in the S3, placing the mixture into a reaction kettle, stirring the mixture for 2 to 3 hours, and obtaining the radiation heat dissipation coating.
2. The preparation method of the carbon nanotube radiation heat dissipation coating is characterized in that raw materials comprising 30-35 parts of base resin, 1.5-2 parts of nanotubes, 40-45 parts of water, 2-3 parts of wetting agent, 6-7 parts of filler, 0.5-2.8 parts of dispersing agent, 1-4 parts of defoaming agent, 2.5-3 parts of nano radiation heat dissipation powder, 13-27 parts of auxiliary agent, 25-40 parts of solvent, 2-3 parts of heat stabilizer, 1.2-3.2 parts of antibacterial agent, 3-4 parts of antioxidant, 12-18 parts of nano silicon dioxide and 30-80 parts of solvent are prepared in S1.
3. The preparation method of the carbon nanotube radiation heat dissipation coating is characterized in that in S1, raw materials including 32 parts of base resin, 1.5 parts of nanotubes, 43 parts of water, 3 parts of wetting agent, 6 parts of filler, 2 parts of dispersing agent, 3 parts of defoaming agent, 2 parts of nano radiation heat dissipation powder, 20 parts of auxiliary agent, 35 parts of solvent, 3 parts of heat stabilizer, 1.5 parts of antibacterial agent, 3.5 parts of antioxidant, 14 parts of nano silicon dioxide and 40 parts of solvent are prepared.
4. The preparation method of the carbon nanotube radiation heat dissipation coating is characterized in that a solvent in S1 is one or a mixture of any more of acetone, butanone, methyl isobutyl ketone, cyclohexanone, isophorone, diisobutyl ketone and methyl n-amyl ketone.
5. The preparation method of the carbon nanotube radiation heat dissipation coating is characterized in that the base resin in S1 is composed of one or more of epoxy resin, aliphatic modified epoxy resin, furan modified epoxy resin, silicon rubber, polybutadiene, polyurethane and fluorocarbon resin.
6. The preparation method of the carbon nanotube radiation heat dissipation coating is characterized in that the reaction temperature in the S2 is 120-200 ℃.
7. The preparation method of the carbon nanotube radiation heat dissipation coating is characterized in that waterborne polyurethane is used as a film forming substance in S1, and the content of the carbon nanotubes in the film forming substance is controlled at 10%.
8. A preparation method of a carbon nano tube radiation heat dissipation coating is characterized in that a stainless steel container is adopted in a reaction kettle in S2.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113604105A (en) * | 2021-07-20 | 2021-11-05 | 佛山安亿纳米材料有限公司 | High-heat-dissipation ink and preparation method thereof |
| CN114350231A (en) * | 2022-02-08 | 2022-04-15 | 深圳市中科纳米科技有限公司 | Water-based carbon nanotube heat dissipation coating and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219220A (en) * | 2015-10-19 | 2016-01-06 | 国网浙江省电力公司湖州供电公司 | A kind of novel high heat conducting nano heat loss through radiation coating and preparation method thereof |
| CN109486319A (en) * | 2018-10-22 | 2019-03-19 | 深圳市嘉达高科产业发展有限公司 | A kind of heat radiation coating and preparation method thereof |
-
2020
- 2020-12-04 CN CN202011409051.1A patent/CN112694812A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219220A (en) * | 2015-10-19 | 2016-01-06 | 国网浙江省电力公司湖州供电公司 | A kind of novel high heat conducting nano heat loss through radiation coating and preparation method thereof |
| CN109486319A (en) * | 2018-10-22 | 2019-03-19 | 深圳市嘉达高科产业发展有限公司 | A kind of heat radiation coating and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113604105A (en) * | 2021-07-20 | 2021-11-05 | 佛山安亿纳米材料有限公司 | High-heat-dissipation ink and preparation method thereof |
| CN114350231A (en) * | 2022-02-08 | 2022-04-15 | 深圳市中科纳米科技有限公司 | Water-based carbon nanotube heat dissipation coating and preparation method thereof |
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