CN109929352A - A kind of graphene heat radiation coating, aluminium sheet radiator heat-dissipation coating and preparation method - Google Patents
A kind of graphene heat radiation coating, aluminium sheet radiator heat-dissipation coating and preparation method Download PDFInfo
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Abstract
The present invention relates to heat sink material field, a kind of graphene heat radiation coating, including graphene slurry, binder and diluent;The graphene slurry includes graphene powder, surface treating agent, solvent, the graphene powder is 5-50 parts by weight, surface treating agent is 1-10 parts by weight, solvent be 40-94 parts by weight, the partial size of graphene powder be 0.05 μm -50 μm binders be acrylic resin, epoxy resin, organic siliconresin one kind or or combinations thereof;The diluent is ethylene glycol, 2-Butoxyethyl acetate or one kind of butyl acetate or combinations thereof.The present invention also provides aluminium sheet radiator heat-dissipation coating and preparation methods.
Description
Technical field
The present invention relates to heat sink material field more particularly to a kind of heat radiation coatings of graphene, radiator coating and preparation
Method.
Background technique
Currently, with the rapid development of LED light power technology, electronic product is towards miniaturization, high power, Highgrade integration
Equal directions are developed, and cause increasing rapidly for the calorific value established practice modelling of electronic component, resulting result is exactly metal-oxide-semiconductor power supply
The temperature or junction temperature of mould group electronic chip increase rapidly, and causing metal-oxide-semiconductor overheating protection causes LED liquid crystal display can not normal work
Make, heat dissipation effect directly influences the stability of electronic product performance, the safety used.
It is well known that metal-oxide-semiconductor power supply modular volume is small, space is limited, can not install the heat dissipation with forced convertion function additional
Device and conventional fin slices radiator, so aluminium sheet radiator is very suitable under this working condition.A large amount of heat can be produced in electronics
It can be generated in the use process of product, if radiator does not have excellent heat dissipation performance, the heat of generation effectively can not quickly disperse,
The life and reliability that will lead to electronic product is reduced rapidly.Some researches show that electronic product temperature is every to rise 2 DEG C, can
By property decline about 10%, so the heat dissipation performance for improving radiator is the key that electronics industry development.
How the waste heat that electronic component generates quickly to be conducted and be diffused into ambient enviroment or cooling system, is
One of the bottleneck of Most electronic product development and application.Aluminium sheet radiator is made under conditions of the confined space needs to cool down again
It plays an important role on improving heat dissipation for important radiating element.Ordinary aluminum plate is dissipated in the case where no heat radiation coating coats
Thermal energy power is limited, is not able to satisfy requirement of the present electronic apparatus to heat dissipation, has substantially in coating heat radiation coating later period heat-sinking capability
Degree improves.
Heat radiation coating spread in performance is uneven currently on the market, and this patent provides that a kind of heat dissipation performance is powerful, and performance is stable
Coating.
Summary of the invention
The present invention provides a kind of graphene heat radiation coating, and with excellent heat dissipation performance, and performance is stablized.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of graphene heat radiation coating, including graphene slurry, binder and diluent;
The graphene slurry includes graphene powder, surface treating agent, solvent, and the graphene powder is 5-50 parts by weight,
Surface treating agent is 1-10 parts by weight, and solvent is 40-94 parts by weight, and the partial size of graphene powder is 0.05 μm -50 μm
The binder be acrylic resin, epoxy resin, organic siliconresin one kind or or combinations thereof;
The diluent is ethylene glycol, 2-Butoxyethyl acetate or one kind of butyl acetate or combinations thereof.
Preferably, the heat radiation coating of the graphene it include being prepared by following raw material, graphene
Slurry 30-80 parts by weight;Binder 5-35 parts by weight;Diluent 15-35 parts by weight.
Preferably, the heat radiation coating of the graphene it include being prepared by following raw material, graphene
Slurry 35-80 parts by weight;Binder 10-30 parts by weight;Diluent 10-30 parts by weight.
Preferably, the heat radiation coating of the graphene it include being prepared by following raw material, graphene
Slurry 55-80 parts by weight;Binder 15-25 parts by weight;Diluent 15-25 parts by weight.
Preferably, the heat radiation coating of the graphene it include being prepared by following raw material, graphene
Slurry 5-50 parts by weight;Binder 1-10 parts by weight;Diluent 40-49 parts by weight.
Preferably, the partial size of the graphene powder is 1 μm -35 μm.
In second technical solution, the present invention provides a kind of aluminium sheet radiator heat-dissipation coating, including bottom and upper layer, institute
Bottom is stated by including that graphene heat radiation coating as described in any one in claim 1-5 coats;
The upper layer is sprayed by upper coating, and the upper coating includes being prepared from the following materials, graphene slurry
10-30 parts by weight, bn slurry 10-40 parts by weight, carbon black slurry 5-20 parts by weight, binder 5-15 parts by weight, diluent
5-60 parts by weight,
The binder is acrylic resin, epoxy resin, one kind of organic siliconresin or combinations thereof;
The diluent is ethylene glycol, 2-Butoxyethyl acetate or one kind of butyl acetate or combinations thereof.
Preferably, the graphene slurry in the upper coating includes by graphene powder, surface treating agent, solvent
It is prepared, wherein graphene powder 5-50 parts by weight, surface treating agent 1-10 parts by weight, solvent 40-94 parts by weight;
The bn slurry includes being prepared by boron nitride, surface treating agent, solvent, and wherein boron nitride is 10-30 weight
Part, surface treating agent be 1-10 parts by weight, solvent is 60-89 parts by weight, the surface treating agent include amide, polyethers it is a kind of or
A combination thereof;
The carbon black slurry includes being prepared by carbon black, surface treating agent, solvent, and wherein carbon black is 10-30 parts by weight, surface
Inorganic agent is 1-10 parts by weight, solvent is 60-89 parts by weight;The surface treating agent includes amide, polyethers one kind or combinations thereof;
Solvent is propylene glycol methyl ether acetate, nylon acid methyl esters, toluene, butyl acrylate one kind or combinations thereof.
In third technical solution, the present invention provides a kind of production method of aluminium sheet radiator heat-dissipation coating, including with
Lower step:
Step 1 sprays the heat radiation coating of graphene as described in any one in claim 1-5 at air pressure 4-6 Kgf/cm2
Bottom is formed in radiator, the thickness of the bottom is less than or equal to 30 μm, then toasts 30-60 at 110 DEG C -130 DEG C
min;
Step 2, after the radiator after baking is cooled to room temperature, the surface of bottom sprayed at air pressure 4-6 Kgf/cm2 as weigh
Benefit require 6 described in upper coating, the thickness on the upper layer is less than or equal to 30 μm, then toasts 30- at 110 DEG C -130 DEG C
60 min。
Preferably, 5 Kgf/cm2 of spray gun air pressure, coating layer thickness is 20 μm in the sprayed layer undercoat the step of, will spray
It is coated with a nanometer radiator for the heat-radiation coating bed of material and toasts 60 min at 120 DEG C.
It is practical the beneficial effects of the present invention are:
This coating is suitable for the spraying of Metal Substrate such as aluminium base, copper-based spreader surface.Graphene thermal dispersant coatings are entirely applying Material
Play the role of improving coating heat emissivity coefficient in system, while improving the adhesive force of coating again.Guaranteeing coating heat radiation system
While number, the microcosmic surface after paint solidification is improved by the coarse structure of coating is long-pending, further improves dissipating for coating
Thermal energy power.
Specific embodiment
It is described in detail below in conjunction with to the present invention.
A kind of graphene heat radiation coating, including graphene slurry, binder and diluent;Graphene slurry includes graphene
Powder, surface treating agent, solvent, graphene powder are 5-50 parts by weight, and surface treating agent is 1-10 parts by weight, solvent 40-
94 parts by weight, the partial size of graphene powder are that 0.05 μm of -50 μm of binder is acrylic resin, epoxy resin, organic siliconresin
One kind or combinations thereof;Diluent is ethylene glycol, 2-Butoxyethyl acetate or one kind of butyl acetate or combinations thereof.
It includes being prepared by following raw material to the heat radiation coating of graphene, graphene slurry 30-80 weight
Part;Binder 5-35 parts by weight;Diluent 15-35 parts by weight.
It includes being prepared by following raw material to the heat radiation coating of graphene, graphene slurry 35-80 weight
Part;Binder 10-30 parts by weight;Diluent 10-30 parts by weight.
It includes being prepared by following raw material to the heat radiation coating of graphene, graphene slurry 55-80 weight
Part;Binder 15-25 parts by weight;Diluent 15-25 parts by weight.
It includes being prepared by following raw material to the heat radiation coating of graphene, graphene slurry 5-50 parts by weight;
Binder 1-10 parts by weight;Diluent 40-49 parts by weight.
Preferably, the partial size of graphene powder is 1 μm -35 μm.
In second technical solution, the present invention provides a kind of aluminium sheet radiator heat-dissipation coating, including bottom and upper layer, bottom
Layer is by including that the graphene heat radiation coating of any one of claim 1-5 such as coats;Upper layer is sprayed by upper coating, on
Coating includes being prepared from the following materials, graphene slurry 10-30 parts by weight, bn slurry 10-40 parts by weight, carbon black
Slurry 5-20 parts by weight, binder 5-15 parts by weight, diluent 5-60 parts by weight;Binder be acrylic resin, epoxy resin,
One kind of organic siliconresin or combinations thereof;Diluent be ethylene glycol, 2-Butoxyethyl acetate or butyl acetate one kind or its
Combination.
Graphene slurry in upper coating includes being prepared by graphene powder, surface treating agent, solvent, wherein stone
Black alkene powder 5-50 parts by weight, surface treating agent 1-10 parts by weight, solvent 40-94 parts by weight;Bn slurry includes by nitrogenizing
Boron, surface treating agent, solvent are prepared, and wherein boron nitride is 10-30 parts by weight, surface treating agent is 1-10 parts by weight, molten
Agent is 60-89 parts by weight, and surface treating agent includes amide, polyethers one kind or combinations thereof;Carbon black slurry includes by carbon black, surface
Reason agent, solvent are prepared, and wherein carbon black is 10-30 parts by weight, surface treating agent is 1-10 parts by weight, solvent is 60-89 weight
Measure part;Surface treating agent includes amide, polyethers one kind or combinations thereof;Solvent is propylene glycol methyl ether acetate, nylon acid methyl esters, first
Benzene, butyl acrylate one kind or combinations thereof.
In third technical solution, the present invention provides a kind of production method of aluminium sheet radiator heat-dissipation coating, including with
Lower step:
Step 1, the heat radiation coating of the graphene of any one of such as claim 1-5 is sprayed at air pressure 4-6 Kgf/cm2 it is scattered
Hot device forms bottom, and the thickness of bottom is less than or equal to 30 μm, then toasts 30-60 min at 110 DEG C -130 DEG C;
Step 2, after the radiator after baking is cooled to room temperature, the surface of bottom sprayed at air pressure 4-6 Kgf/cm2 as weigh
Benefit requires 6 upper coating, and the thickness on upper layer is less than or equal to 30 μm, then toasts 30-60 min at 110 DEG C -130 DEG C.
Preferably, 5 Kgf/cm2 of spray gun air pressure, coating layer thickness is 20 μm in the sprayed layer undercoat the step of, will spray
It is coated with a nanometer radiator for the heat-radiation coating bed of material and toasts 60 min at 120 DEG C.
The technical program is described in detail below by embodiment.
Raw material described in the present embodiment is commercially available.Raw material model and source are specific as follows:
Binder: low hydroxyl value acrylic resin MR-767;
Curing agent: aminoepoxy resin MR-818;
Graphene: Guo Chuanjiawei graphene Science and Technology Ltd., Shenzhen;
Boron nitride: 20um-60um;
Carbon black: 20nm-50nm;
Diluent: butyl acetate;
Solvent: propylene glycol methyl ether acetate;
Surface active agent: BYK-101, German Bi Ke.
Graphene powder, effect is thermally conductive, heat accumulation, heat dissipation, and average grain diameter is 0.05 μm -50 μm, preferably 1 μm -
35μm.Its pattern of the graphene powder can be spherical, spherical, stick, sheet and irregular shape.The Graphene powder
Body can be reduced graphene, graphene oxide, graphene microchip.It can be the mixed of one kind and two or three graphene
Close object.
Boron nitride powder, effect is thermally conductive, insulation, corrosion-resistant, wear-resisting.Partial size is 0.05-100 μm, which is
Hexagonal boron nitride, preferable particle size are 5-20 μm of
Carbon black powder, effect is to improve heat emissivity coefficient, wear-resisting.Partial size is 0.02-100 μm, which is six sides nitridation
Boron, preferable particle size 20nm.
Surface treating agent mainly plays surface treating agent, it is therefore an objective to carry out lipophilic processing to graphene powder, improve stone
The surface wettability of black alkene powder can make more evenly dispersion of the graphene powder in diluent.In the present embodiment, length is selected
Chain amide, polyethers.
Binder is acrylic resin, epoxy resin, organic the purpose is to make graphene powder and radiator organic structure
One kind of silicone resin or combinations thereof.
Diluent the purpose is to which graphene powder is effectively uniformly dispersed, generally using ethylene glycol, butyl glycol ether acetic acid
One of ester or butyl acetate or combinations thereof.
Propylene glycol methyl ether acetate, nylon acid methyl esters, toluene, butyl acrylate one kind or combinations thereof.
Embodiment 1
Aluminium sheet radiator heat-dissipation coating includes 10 parts by weight of graphene slurry, and graphene slurry includes 50 weight of graphene powder
Part, solvent are 40 parts by weight of propylene glycol methyl ether acetate, 101 10 parts by weight of surface treating agent BYK;
40 parts by weight of bn slurry, bn slurry include 30 parts by weight of boron nitride powder, solvent be propylene glycol monomethyl ether vinegar
60 parts by weight of acid esters, 10 parts by weight of surface treating agent;
40 parts by weight of carbon black slurry, carbon black slurry include 30 parts by weight of carbon black powder, solvent be propylene glycol methyl ether acetate, 60
Parts by weight, 10 parts by weight of surface treating agent;
Binder is 5 parts by weight of low hydroxyl value acrylic resin MR-767 and aminoepoxy resin MR-818;
Diluent is butyl acetate, 45 parts by weight.
Coating the preparation method is as follows:
Take the ratio of the middle graphene powder of ratio as above, surface treating agent, binder and diluent to weigh, first will part it is viscous
Agent, diluent, surface treating agent mixing are tied, is then added after graphene powder is mixed and stirs, obtain mixture.
Mixture be sanded or ball milling, gains are radiator graphene slurry.
Middle boron nitride powder, surface treating agent, binder and the diluent for taking ratio as above, proportionally weigh, first
Binder, diluent, surface treating agent are mixed, is then added after boron nitride is mixed and stirs, obtain mixture.
Mixture be sanded or ball milling, gains are to use bn slurry.
Middle carbon black powder, surface treating agent, binder and the diluent for taking ratio as above, proportionally weigh, and first will
Then binder, diluent, surface treating agent mixing are added after boron nitride is mixed and stir, obtain mixture.Using having
The sand mill of ice water cooling system is stirred mixing to graphene slurry, bn slurry and carbon black slurry.
Embodiment 2
Aluminium sheet radiator heat-dissipation coating includes 25 parts by weight of graphene slurry, and graphene slurry includes 50 weight of graphene powder
Part, solvent are 40 parts by weight of propylene glycol methyl ether acetate, 10 parts by weight of surface treating agent BYK101;
40 parts by weight of bn slurry, bn slurry include 30 parts by weight of boron nitride powder, solvent be propylene glycol monomethyl ether vinegar
60 parts by weight of acid esters, surface treating agent are 10 parts by weight of BYK101;
50 parts by weight of carbon black slurry, carbon black slurry include 30 parts by weight of carbon black powder, solvent be propylene glycol methyl ether acetate 60
Parts by weight, 10 parts by weight of surface treating agent;
Binder is low hydroxyl value acrylic resin MR-767 and aminoepoxy resin MR-818,5 parts by weight of binder;
Diluent is 30 parts by weight of butyl acetate.
Preparation method is same as Example 1.
Embodiment 3
20 parts by weight of graphene slurry, graphene slurry include 50 parts by weight of graphene powder, solvent be propylene glycol monomethyl ether acetic acid
40 parts by weight of ester, 10 parts by weight of surface treating agent BYK101;
80 parts by weight of bn slurry, bn slurry include 30 parts by weight of boron nitride powder, solvent be propylene glycol monomethyl ether acetic acid
60 parts by weight of ester, 10 parts by weight of surface treating agent;
80 parts by weight of carbon black slurry, carbon black slurry include 30 parts by weight of carbon black powder, solvent be propylene glycol methyl ether acetate 60
Parts by weight, 10 parts by weight of surface treating agent;
Binder is low hydroxyl value acrylic resin MR-767 and its curing agent aminoepoxy resin MR-818,5 parts by weight of binder;
Diluent is butyl acetate, 15 parts by weight.
Preparation method is same as Example 1.
Comparative example 1
80 parts by weight of graphene slurry, graphene slurry include 50 parts by weight of graphene powder, and solvent is propylene glycol monomethyl ether vinegar
Acid esters, 40 parts by weight, surface treating agent position BYK101,10 parts by weight;Binder be low hydroxyl value acrylic resin MR-767 and
Aminoepoxy resin MR-818,15 parts by weight;Diluent is 5 parts by weight of butyl acetate.
Comparative example 2
40 parts by weight of graphene slurry, graphene slurry include 50 parts by weight of graphene powder, and solvent is propylene glycol monomethyl ether vinegar
Acid esters, 40 parts by weight, 101 10 parts by weight of surface treating agent BYK;40 parts by weight of bn slurry, including boron nitride powder
30 parts by weight, solvent are propylene glycol methyl ether acetate, 60 parts by weight, 10 parts by weight of surface treating agent;Binder is low hydroxyl value third
Olefin(e) acid resin M R-767 and its curing agent aminoepoxy resin MR-818,20 parts by weight;
The heat radiation coating performance parameter table of 1 embodiment and comparative example of table
Parameter | Blank radiator | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 |
Figure layer thickness | 0 um | 15~30um | 15~30um | 15~30um | 15~30um | 15~30um |
Room temperature (DEG C) | 25 | 25 | 25 | 25 | 25 | 25 |
Equilibrium temperature (DEG C) | 79 | 72 | 70 | 69 | 73 | 73 |
Cooling extent (DEG C) | / | 7 | 9 | 10 | 6 | 6 |
Heat emissivity coefficient | 0.05 | 0.94 | 0.96 | 0.97 | 0.99 | 0.65 |
1 data of summary analysis, the comprehensive performance of embodiment 3 is optimal, and the cooling extent of embodiment 3 has reached 10 DEG C, hot spoke
Coefficient is penetrated also to be able to maintain preferable horizontal.Embodiment 1 and the axial cooling extent of embodiment 2 are bad, the reason is that graphene contains
Measure it is lower caused by, after the raising of graphene content, the attached coefficient of heat of figure layer is promoted, in addition the spraying knot of dual-coating
Structure can more play the performance of heat radiation coating relative to comparative example.
The present invention also provides a kind of production methods of radiator heat-dissipation coating comprising following steps:
40-60 parts by weight diluent, the mixing of 1-10 parts by weight surface treating agent will be taken, 30-80 parts by weight of graphite is then added
Alkene powder is mixed and stirred for, and obtains mixture, then the mixture is sanded or ball milling, obtains graphene slurry;Take as
It is sufficiently stirred to obtain graphene heat radiation coating after the preceding graphene slurry, binder, diluent mixing.
By the heat radiation coating of foregoing graphene in air pressure 4-6 Kgf/cm2Under be sprayed on radiator formed bottom,
The thickness of the bottom is less than or equal to 30 μm, and 30-60 min is then toasted at 110 DEG C -130 DEG C.
After radiator after baking is cooled to room temperature, the surface of bottom is in air pressure 4-6 Kgf/cm2Lower spraying is such as aforementioned
Upper coating, the thickness on the upper layer is less than or equal to 30 μm, then toasts 30-60 min at 110 DEG C -130 DEG C.
Preferably, in the sprayed layer undercoat the step of, 5 Kgf/cm2 of spray gun air pressure, coating layer thickness is 20 μm, will be coated with
The radiator of the nanometer heat-radiation coating bed of material toasts 60 min at 120 DEG C.
This coating is suitable for the spraying of Metal Substrate such as aluminium base, copper-based spreader surface.Graphene thermal dispersant coatings are entirely applying
Play the role of improving coating heat emissivity coefficient in Material system, while improving the adhesive force of coating again.Guaranteeing the hot spoke of coating
While penetrating coefficient, the microcosmic surface after paint solidification is improved by the coarse structure of coating is long-pending, further improves coating
Heat-sinking capability.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although
Present invention has been described in detail with reference to the aforementioned embodiments, and those skilled in the art are when understanding: it still can be with
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features;And
These are modified or replaceed, the spirit and model of technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
The above is only a preferred embodiment of the present invention, for those of ordinary skill in the art, according to the present invention
Thought, in specific embodiments and applications can be with many changes may be made, as long as these variations are without departing from structure of the invention
Think, all belongs to the scope of protection of the present invention.
Claims (10)
1. a kind of graphene heat radiation coating, it is characterised in that: including graphene slurry, binder and diluent;The graphene
Slurry includes graphene powder, surface treating agent, solvent, and the graphene powder is 5-50 parts by weight, surface treating agent 1-
10 parts by weight, solvent are 40-94 parts by weight, and the partial size of graphene powder is 0.05 μm -50 μm
The binder be acrylic resin, epoxy resin, organic siliconresin one kind or or combinations thereof;
The diluent is ethylene glycol, 2-Butoxyethyl acetate or one kind of butyl acetate or combinations thereof.
2. graphene heat radiation coating according to claim 1, it is characterised in that: the heat radiation coating of the graphene it include
It is prepared by following raw material, graphene slurry 30-80 parts by weight;Binder 5-35 parts by weight;Diluent 15-35
Parts by weight.
3. graphene heat radiation coating according to claim 1, it is characterised in that: the heat radiation coating of the graphene it include
It is prepared by following raw material, graphene slurry 35-80 parts by weight;Binder 10-30 parts by weight;Diluent 10-
30 parts by weight.
4. graphene heat radiation coating according to claim 1, it is characterised in that: the heat radiation coating of the graphene it include
It is prepared by following raw material, graphene slurry 55-80 parts by weight;Binder 15-25 parts by weight;Diluent 15-
25 parts by weight.
5. graphene heat radiation coating according to claim 1, it is characterised in that: the heat radiation coating of the graphene it include
It is prepared by following raw material, graphene slurry 5-50 parts by weight;Binder 1-10 parts by weight;Diluent 40-49
Parts by weight.
6. the heat radiation coating of graphene as described in claim 1, it is characterised in that: the partial size of the graphene powder be 1 μm-
35μm。
7. a kind of aluminium sheet radiator heat-dissipation coating, it is characterised in that: including bottom and upper layer, the bottom is by including that right such as is wanted
The described in any item graphene heat radiation coatings of 1-5 are asked to coat;The upper layer is sprayed by upper coating, and the upper layer applies
Material includes being prepared from the following materials, graphene slurry 10-30 parts by weight, bn slurry 10-40 parts by weight, carbon black slurry
5-20 parts by weight, binder 5-15 parts by weight, diluent 5-60 parts by weight, the binder be acrylic resin, epoxy resin,
One kind of organic siliconresin or combinations thereof;The diluent is one kind of ethylene glycol, 2-Butoxyethyl acetate or butyl acetate
Or combinations thereof.
8. aluminium sheet radiator heat-dissipation coating according to claim 7, it is characterised in that: the graphene in the upper coating
Slurry includes being prepared by graphene powder, surface treating agent, solvent, wherein graphene powder 5-50 parts by weight, at surface
Manage agent 1-10 parts by weight, solvent 40-94 parts by weight;The bn slurry includes by boron nitride, surface treating agent, solvent preparation
It forms, wherein boron nitride is 10-30 parts by weight, surface treating agent is 1-10 parts by weight, solvent is 60-89 parts by weight, the table
Surface treatment agent includes amide, polyethers one kind or combinations thereof;The carbon black slurry includes by carbon black, surface treating agent, solvent preparation
It forms, wherein carbon black is 10-30 parts by weight, surface treating agent is 1-10 parts by weight, solvent is 60-89 parts by weight;The surface
Inorganic agent includes amide, polyethers one kind or combinations thereof;Solvent is propylene glycol methyl ether acetate, nylon acid methyl esters, toluene, acrylic acid
Butyl ester one kind or combinations thereof.
9. a kind of production method of aluminium sheet radiator heat-dissipation coating, it is characterised in that: the following steps are included:
Step 1 sprays the heat radiation coating of graphene as described in any one in claim 1-5 at air pressure 4-6 Kgf/cm2
Bottom is formed in radiator, the thickness of the bottom is less than or equal to 30 μm, then toasts 30-60 at 110 DEG C -130 DEG C
min;
Step 2, after the radiator after baking is cooled to room temperature, the surface of bottom sprayed at air pressure 4-6 Kgf/cm2 as weigh
Benefit require 6 described in upper coating, the thickness on the upper layer is less than or equal to 30 μm, then toasts 30- at 110 DEG C -130 DEG C
60 min。
10. the production method of aluminium sheet radiator heat-dissipation coating according to claim 9, it is characterised in that: in sprayed layer undercoat
The step of in, 5 Kgf/cm2 of spray gun air pressure, coating layer thickness be 20 μm, a nanometer radiator for the heat-radiation coating bed of material will be coated with and existed
60 min are toasted at 120 DEG C.
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CN111549338A (en) * | 2020-05-19 | 2020-08-18 | 江苏江南烯元石墨烯科技有限公司 | Graphene heat dissipation film and preparation method thereof |
CN115404001A (en) * | 2022-05-18 | 2022-11-29 | 松山湖材料实验室 | High-emissivity high-thermal-conductivity corrosion-resistant film and preparation method and application thereof |
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CN110402065A (en) * | 2019-07-24 | 2019-11-01 | 广东德瑞源新材料科技有限公司 | The discoid heavy duty detergent graphene radiator of integral type |
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CN115404001A (en) * | 2022-05-18 | 2022-11-29 | 松山湖材料实验室 | High-emissivity high-thermal-conductivity corrosion-resistant film and preparation method and application thereof |
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