CN105694654B - A kind of heat dissipation hydrophilic coating and preparation method thereof - Google Patents

A kind of heat dissipation hydrophilic coating and preparation method thereof Download PDF

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CN105694654B
CN105694654B CN201610154096.6A CN201610154096A CN105694654B CN 105694654 B CN105694654 B CN 105694654B CN 201610154096 A CN201610154096 A CN 201610154096A CN 105694654 B CN105694654 B CN 105694654B
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heat dissipation
epoxy resin
hydrophilic coating
water
resin
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陈名海
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Wuhu Hi Tech New Materials Co ltd
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Abstract

The present invention relates to a kind of heat dissipation hydrophilic coating and preparation method thereof, composition and weight percent substantially is:Modified aqueous epoxy resin 10%~40%, water soluble acrylic resin 1%~20%, amino resins 1%~10%, hydrophilic surfactant 0.1%~5%, nano-carbon material 1%~5%, wetting agent 0.1%~5%, levelling agent 0.1%~5%, cosolvent 2%~10%, deionized water surplus.The present invention obtains compatible dispersibility good to nano-carbon material by epoxy resin modification, obtain good film forming, nano-carbon material therein can play the characteristics such as its high heat conductance, high infrared radiance, the hydrophilic coating is set to have the function of heat loss through radiation, the heat dissipation antiseptic property of the equipment such as air conditioner aluminium foil, aluminium foil heat exchanger can be significantly improved, Energy Efficiency Ratio is improved, there is important commercial value.

Description

A kind of heat dissipation hydrophilic coating and preparation method thereof
Technical field
The present invention relates to a kind of water paint and preparation method thereof, specifically a kind of heat dissipation hydrophilic coating and its preparation Method.
Background technology
Traditional hydrophilic coating is a kind of water paint for improving material surface performance, is mainly used for aluminium and aluminium alloy system The hydrophobe characteristic of product, especially heat exchanger of air condition fin.When air-conditioning and refrigeration machine work, the water vapour in air is easy Surface is condensed in, water bridge is formed between fin, hinders air circulation, increase noise.Main product is on its surface currently on the market One layer of organic hydrophilic coating is coated, makes condensed water in surface spreading, and quickly volatilize.But the universal thermal conductivity of organic coating is low, resistance The quick diffusion of heat when having hindered effective heat exchange, especially air conditioner heating work.Metal surface heat-sinking capability is improved thus It is particularly important.
Nano-carbon material include carbon nanotube, graphene and other nanoscale crystal types carbon material, possess high fever The excellent specific properties such as conductance, high infrared radiation are the optimal function packing materials of infra-red radiation heat radiation coating.Compared to other heat conduction The carbon material of filler, nano-scale can be such that coating layer thickness substantially reduces, and reduce coating resistance.But since nano-carbon material is gathered around There is huge specific surface area, it is made to be difficult to disperse, resins for universal use property compatible is poor, it is difficult to obtain the uniform multiple of high volume content It closes.The addition of high volume content inorganic filler often leads to the drastically decline of the film forming performance of paint, how to overcome high volume content Adding and keeping good filming performance for inorganic filler is the difficulty that coating industry faces for a long time.Especially nano-carbon material Resin matrix viscosity is caused to steeply rise after compound, it is difficult to control coating film forming.Therefore, resin and nano-carbon material are controlled Compatibility and dispersibility, realize that high volume content is compound, reduce coating layer thickness, obtain high-performance radiate hydrophilic coating, be solution The certainly most effective approach of aluminium foil heat dissipation.
Invention content
Technical problem to be solved by the invention is to provide a kind of heat dissipation hydrophilic coatings and preparation method thereof.
The technical problems to be solved by the invention are realized using following technical scheme:
A kind of heat dissipation hydrophilic coating, substantially composition and weight percent are:
Wherein, the modified aqueous epoxy resin is aqueous acrylic modified epoxy resin, is poly- by following components grafting Close the water-base resin formed:
Further, the water soluble acrylic resin is anionic, molecular weight 1500~15000, preferably South Korea Korea Spro Magnificent Soluryl-20, Soluryl-70, Soluryl-90, Soluryl-120, Soluryl-820.
Further, the amino resins is melamine resin, Lauxite, hydrocarbon-based melamine formaldehyde resin Any one or arbitrary combination.
Further, the hydrophilic surfactant is alkylsulfonate, alkyl sulfonic acid alcohol ether, alkylbenzene sulfonate, ten Six alkyl trimethyl ammonium bromides, polyethylene glycol, hydroxymethyl cellulose, sodium carboxymethylcellulose pyce, ethyl cellulose, methylcellulose, Logical any one of carboxymethyl cellulose, hydroxypropyl methyl cellulose, polyvinylpyrrolidone, polyvinyl alcohol, Qula or two kinds Above combination.
Further, the nano-carbon material is or mixtures thereof one kind in carbon nanotube, grapheme material, the carbon Nanotube is any one of multi-walled carbon nanotube, single-walled carbon nanotube or arbitrarily combines, a diameter of the 0.4 of the carbon nanotube ~150nm, length are 100nm~1mm;The grapheme material is graphene, and the synusia thickness of the grapheme material is 0.2nm~20nm, a diameter of 100nm~1mm.
Further, the wetting agent be commercial carbon blacks wetting agent any one, preferably BYK191, BYK192, BYK193、BYK180、BYK181、BYK183、BYK194。
Further, the levelling agent be organic silicon modified by polyether or polyester resin change properties of organic silicon water-base resin levelling agent, Preferably BYK331, BYK333, BYK378.
Further, the cosolvent be water, ethyl alcohol, ethylene glycol, butyl glycol ether, ethylene glycol monomethyl ether, ethylene glycol ethyl ether, Propylene glycol, propylene glycol monomethyl ether, propylene glycol methyl ether acetate, propylene-glycol ethyl ether, acetone, butanone, cyclohexanone, isopropanol, n-butanol In at least two kinds of mixed with arbitrary proportion.
Further, the mixed solvent is butyl glycol ether, ethylene glycol monomethyl ether, ethylene glycol ethyl ether, propylene glycol, propylene glycol Methyl ether, propylene glycol methyl ether acetate, propylene-glycol ethyl ether, acetone, butanone, cyclohexanone, isopropanol, n-butanol, toluene, O-phthalic At least two kinds of in dimethyl phthalate, ethyl acetate are mixed with arbitrary proportion;
Further, the epoxy resin is solid or liquid bisphenol A type epoxy resin;
Further, the modified monomer is styrene and acrylic acid, methyl acrylate, ethyl acrylate, acrylic acid fourth Ester, isobutyl acrylate, Hexyl 2-propenoate, Isooctyl acrylate monomer, lauryl acrylate, benzyl acrylate, cyclohexyl acrylate, Perfluoroalkyl acrylate, hydroxy ethyl phosphate, isobornyl acrylate, acrylic acid tetrahydrofuran methyl esters, methyl-prop Olefin(e) acid, methyl methacrylate, ethyl methacrylate, butyl methacrylate, Isobutyl methacrylate, methacrylic acid In ester, Isooctyl acrylate monomer, lauryl methacrylate, isobornyl methacrylate, cyclohexyl methacrylate extremely Few 2 kinds are arbitrarily composed;
Further, the initiator is azo-bis-isobutyl cyanide, azo-bis-iso-dimethyl, azobisisoheptonitrile, mistake In Benzoyl Oxide, cumyl peroxide, methyl ethyl ketone peroxide, two hexamethylene fat of dicetyl peroxydicarbonate, tert-butyl hydroperoxide Any one or combination;
Further, the neutralizer is ammonium hydroxide, ethanol amine, (2-hydroxyethyl)methylamine), NN- dimethylethanolamines, second two Any one or combination of amine, triethylamine.
A kind of preparation method of heat dissipation hydrophilic coating, the preparation process are:
(1) preparation of modified aqueous epoxy resin:Epoxy resin is dissolved according to the component and weight percent mixed In bonding solvent, the mixture of modified monomer and initiator is added dropwise at 80~150 DEG C, 0.5~5h of time for adding then keeps the temperature 1 again ~5h discharges after cooling, and neutralizer and water, 400~1500r/min of rotating speed, stirring are sequentially added under high speed dispersor stirring 10min~2h obtains uniform modified aqueous epoxy resin;
(2) according to proportioning by modified aqueous epoxy resin, water soluble acrylic resin, nano-carbon material, dispersant, wetting Agent, cosolvent and water are uniformly mixed in high speed dispersor, 400~1500r/min of rotating speed, are stirred 0.5~5h, are then being sanded Grinding distribution to fineness is 20um hereinafter, discharging acquisition nano-sized carbon dispersed paste is spare in machine;
(3) amino resins is added in nano-sized carbon dispersed paste, high-speed stirred is uniformly mixed, 400~1500r/ of rotating speed min;
(4) one kind in roller coating, blade coating, spraying can be used in film-forming process, and solidification temperature is 120~200 DEG C, the time 1 ~30min is stirred 10 minutes~2 hours, is filtered to get to finished product coating with 200~400 mesh filter screens.
The beneficial effects of the invention are as follows:Compared with prior art, advantages of the present invention includes:
(1) by introducing the modified monomer containing a variety of groups, scion grafting hydroxyl, carboxyl and phenyl ring etc. in the epoxy, lead to It crosses benzene radicals and excellent compatibility and dispersibility is obtained by Pai-group's effect to nano-carbon materials such as carbon nanotubes, pass through hydroxyl The Water-borne modification of resin is realized with carboxyl, and high concentration dispersion is further obtained under the booster action of hydrophilic surfactant, is realized Whole system has superior dispersibility, it can be achieved that high concentration is disperseed to nano-carbon material;
(2) nano-carbon material that high radiant rate is introduced in hydrophilic coating system, can not only keep the hydrophilic spy of itself Property, moreover it is possible to coating infrared emittance and thermal conductivity are improved, and the nanometer carbon filler of nanoscale can get very thin coating, tool The characteristic for having low thermal resistance makes metal surface heat dissipation characteristics greatly promote to make coating obtain the double-deck function of hydrophilic and heat dissipation;
(3) hydrophilic surfactant plays the function of aid dispersion nano-carbon material and coating hydrophilic simultaneously, is conducive to Nano-carbon material is distributed in the winding of coat inside, and coating system is made to obtain outstanding stability;
(4) heat dissipation hydrophilic coating of the invention has permanent heat dissipation characteristics, does not degenerate with usage time.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, below it is right The present invention is expanded on further.
Embodiment one:
A kind of heat dissipation hydrophilic coating, substantially composition and weight percent are:
Wherein, the modified aqueous epoxy resin is aqueous acrylic modified epoxy resin, is poly- by following components grafting Close the water-base resin formed:
Wherein, mixed solvent is n-butanol and butyl glycol ether with 2:3 ratio is made;
The epoxy resin is epoxy resin E44;
The modified monomer is styrene:Methacrylic acid:Methyl methacrylate:Hydroxypropyl acrylate is mixed, The styrene:Methacrylic acid:Methyl methacrylate:Hydroxypropyl acrylate=3:2:3:2;
The initiator is benzoyl peroxide;
The neutralizer is ethanol amine;
The water is deionized water.
The water soluble acrylic resin is Soluryl-20;
The amino resins is melamine resin;
The hydrophilic surfactant is dodecyl sodium sulfate;
The nano-carbon material is multi-walled carbon nanotube;
The wetting agent is BYK191;
The levelling agent is BYK331;
The cosolvent is ethyl alcohol, butyl glycol ether, water according to 6:3:1 ratio mixes.
Embodiment two:
A kind of heat dissipation hydrophilic coating, substantially composition and weight percent are:
Wherein, the modified aqueous epoxy resin is aqueous acrylic modified epoxy resin, is poly- by following components grafting Close the water-base resin formed:
Wherein, mixed solvent is n-butanol and butyl glycol ether with 2:3 ratio is made;
The epoxy resin is epoxy resin E44;
The modified monomer is styrene, methacrylic acid, methyl methacrylate, Isooctyl acrylate monomer according to 3:2:3: 2 ratio is mixed;
The initiator is azo-bis-isobutyl cyanide;
The neutralizer is (2-hydroxyethyl)methylamine);
The water is deionized water.
The water soluble acrylic resin is Soluryl-90;
The amino resins is Lauxite;
The hydrophilic surfactant is neopelex;
The nano-carbon material is single-walled carbon nanotube;
The wetting agent is BYK190;
The levelling agent is BYK333;
The cosolvent is ethyl alcohol, butyl glycol ether, water according to 6:3:1 ratio mixes.
Embodiment three:
A kind of heat dissipation hydrophilic coating, substantially composition and weight percent are:
Wherein, the modified aqueous epoxy resin is aqueous acrylic modified epoxy resin, is poly- by following components grafting Close the water-base resin formed:
Wherein, mixed solvent is n-butanol and butyl glycol ether with 2:3 ratio is made;
The epoxy resin is epoxy resin E44;
The modified monomer is styrene, methacrylic acid, methyl methacrylate, butyl methacrylate according to 3:2: 3:2 ratio is mixed;
The initiator is methyl ethyl ketone peroxide;
The neutralizer is NN- dimethylethanolamines;
The water is deionized water.
The water soluble acrylic resin is Soluryl-120;
The amino resins is hydrocarbon-based melamine formaldehyde resin;
The hydrophilic surfactant is polyvinylpyrrolidone;
The nano-carbon material is graphene;
The wetting agent is BYK181;
The levelling agent is BYK378;
The cosolvent is ethyl alcohol, butyl glycol ether, water according to 6:3:1 ratio mixes.
Example IV:
A kind of heat dissipation hydrophilic coating, substantially composition and weight percent are:
Wherein, the modified aqueous epoxy resin is aqueous acrylic modified epoxy resin, is poly- by following components grafting Close the water-base resin formed:
Wherein, mixed solvent is n-butanol and butyl glycol ether with 2:3 ratio is made;
The epoxy resin is epoxy resin E44;
The modified monomer is styrene, methacrylic acid, methyl methacrylate, Isobutyl methacrylate according to 3: 2:3:2 ratio is mixed;
The initiator is tert-butyl hydroperoxide;
The neutralizer is ethylenediamine;
The water is deionized water.
The water soluble acrylic resin is Soluryl-820;
The amino resins is melamine resin;
The hydrophilic surfactant is sodium carboxymethylcellulose pyce;
The nano-carbon material is graphene;
The wetting agent is BYK180;
The levelling agent is BYK331;
The cosolvent is ethyl alcohol, butyl glycol ether, water according to 6:3:1 ratio mixes.
Embodiment five:
A kind of heat dissipation hydrophilic coating, substantially composition and weight percent are:
Wherein, the modified aqueous epoxy resin is aqueous acrylic modified epoxy resin, is poly- by following components grafting Close the water-base resin formed:
Wherein, mixed solvent is n-butanol and butyl glycol ether with 2:3 ratio is made;
The epoxy resin is epoxy resin E44;
The modified monomer is styrene, methacrylic acid, methyl methacrylate, hydroxypropyl acrylate according to 3:2:3: 2 ratio is mixed;
The initiator is benzoyl peroxide;
The neutralizer is ethanol amine;
The water is deionized water.
The water soluble acrylic resin is Soluryl-20;
The amino resins is melamine resin;
The hydrophilic surfactant is dodecyl sodium sulfate;
The nano-carbon material is multi-walled carbon nanotube;
The wetting agent is BYK191;
The levelling agent is BYK331;
The cosolvent is ethyl alcohol, butyl glycol ether, water according to 6:3:1 ratio mixes.
Embodiment six:
A kind of heat dissipation hydrophilic coating, substantially composition and weight percent are:
Wherein, the modified aqueous epoxy resin is aqueous acrylic modified epoxy resin, is poly- by following components grafting Close the water-base resin formed:
Wherein, mixed solvent is n-butanol and butyl glycol ether with 2:3 ratio is made;
The epoxy resin is epoxy resin E44;
The modified monomer is styrene, methacrylic acid, methyl methacrylate, Isooctyl acrylate monomer according to 3:2:3: 2 ratio is mixed;
The initiator is azo-bis-isobutyl cyanide;
The neutralizer is (2-hydroxyethyl)methylamine);
The water is deionized water.
The water soluble acrylic resin is Soluryl-90;
The amino resins is Lauxite;
The hydrophilic surfactant is neopelex;
The nano-carbon material is single-walled carbon nanotube;
The wetting agent is BYK190;
The levelling agent is BYK333;
The cosolvent is ethyl alcohol, butyl glycol ether, water according to 6:3:1 ratio mixes.
Embodiment seven:
A kind of heat dissipation hydrophilic coating, substantially composition and weight percent are:
Wherein, the modified aqueous epoxy resin is aqueous acrylic modified epoxy resin, is poly- by following components grafting Close the water-base resin formed:
Wherein, mixed solvent is n-butanol and butyl glycol ether with 2:3 ratio is made;
The epoxy resin is epoxy resin E44;
The modified monomer is styrene, methacrylic acid, methyl methacrylate, butyl methacrylate according to 3:2: 3:2 ratio is mixed;
The initiator is methyl ethyl ketone peroxide;
The neutralizer is NN- dimethylethanolamines;
The water is deionized water.
The water soluble acrylic resin is Soluryl-120;
The amino resins is hydrocarbon-based melamine formaldehyde resin;
The hydrophilic surfactant is polyvinylpyrrolidone;
The nano-carbon material is graphene;
The wetting agent is BYK181;
The levelling agent is BYK378;
The cosolvent is ethyl alcohol, butyl glycol ether, water according to 6:3:1 ratio mixes.
Embodiment eight:
A kind of heat dissipation hydrophilic coating, substantially composition and weight percent are:
Wherein, the modified aqueous epoxy resin is aqueous acrylic modified epoxy resin, is poly- by following components grafting Close the water-base resin formed:
Wherein, mixed solvent is n-butanol and butyl glycol ether with 2:3 ratio is made;
The epoxy resin is epoxy resin E44;
The modified monomer is styrene, methacrylic acid, methyl methacrylate, Isobutyl methacrylate according to 3: 2:3:2 ratio is mixed;
The initiator is tert-butyl hydroperoxide;
The neutralizer is ethylenediamine;
The water is deionized water.
The water soluble acrylic resin is Soluryl-820;
The amino resins is melamine resin;
The hydrophilic surfactant is sodium carboxymethylcellulose pyce;
The nano-carbon material is graphene;
The wetting agent is BYK180;
The levelling agent is BYK331;
The cosolvent is ethyl alcohol, butyl glycol ether, water according to 6:3:1 ratio mixes.
Embodiment nine:
A kind of heat dissipation hydrophilic coating, substantially composition and weight percent are:
Wherein, the modified aqueous epoxy resin is aqueous acrylic modified epoxy resin, is poly- by following components grafting Close the water-base resin formed:
Wherein, mixed solvent is n-butanol and butyl glycol ether with 2:3 ratio is made;
The epoxy resin is epoxy resin E44;
The modified monomer is styrene, methacrylic acid, methyl methacrylate, hydroxypropyl acrylate according to 3:2:3: 2 ratio is mixed;
The initiator is benzoyl peroxide;
The neutralizer is ethanol amine;
The water is deionized water.
The water soluble acrylic resin is Soluryl-20;
The amino resins is melamine resin;
The hydrophilic surfactant is dodecyl sodium sulfate;
The nano-carbon material is multi-walled carbon nanotube;
The wetting agent is BYK191;
The levelling agent is BYK331;
The cosolvent is ethyl alcohol, butyl glycol ether, water according to 6:3:1 ratio mixes.
Embodiment ten:
A kind of heat dissipation hydrophilic coating, substantially composition and weight percent are:
Wherein, the modified aqueous epoxy resin is aqueous acrylic modified epoxy resin, is poly- by following components grafting Close the water-base resin formed:
Wherein, mixed solvent is n-butanol and butyl glycol ether with 2:3 ratio is made;
The epoxy resin is epoxy resin E44;
The modified monomer is styrene, methacrylic acid, methyl methacrylate, Isooctyl acrylate monomer 3:2:3:2 Ratio be mixed;
The initiator is azo-bis-isobutyl cyanide;
The neutralizer is (2-hydroxyethyl)methylamine);
The water is deionized water.
The water soluble acrylic resin is Soluryl-90;
The amino resins is Lauxite;
The hydrophilic surfactant is neopelex;
The nano-carbon material is single-walled carbon nanotube;
The wetting agent is BYK190;
The levelling agent is BYK333;
The cosolvent is ethyl alcohol, butyl glycol ether, water according to 6:3:1 ratio mixes.
Embodiment 11:
A kind of heat dissipation hydrophilic coating, substantially composition and weight percent are:
Wherein, the modified aqueous epoxy resin is aqueous acrylic modified epoxy resin, is poly- by following components grafting Close the water-base resin formed:
Wherein, mixed solvent is n-butanol and butyl glycol ether with 2:3 ratio is made;
The epoxy resin is epoxy resin E44;
The modified monomer is styrene, methacrylic acid, methyl methacrylate, butyl methacrylate according to 3:2: 3:2 ratio is mixed;
The initiator is methyl ethyl ketone peroxide;
The neutralizer is NN- dimethylethanolamines;
The water is deionized water.
The water soluble acrylic resin is Soluryl-120;
The amino resins is hydrocarbon-based melamine formaldehyde resin;
The hydrophilic surfactant is polyvinylpyrrolidone;
The nano-carbon material is graphene;
The wetting agent is BYK181;
The levelling agent is BYK378;
The cosolvent is ethyl alcohol, butyl glycol ether, water according to 6:3:1 ratio mixes.
Embodiment 12:
A kind of heat dissipation hydrophilic coating, substantially composition and weight percent are:
Wherein, the modified aqueous epoxy resin is aqueous acrylic modified epoxy resin, is poly- by following components grafting Close the water-base resin formed:
Wherein, mixed solvent is n-butanol and butyl glycol ether with 2:3 ratio is made;
The epoxy resin is epoxy resin E44;
The modified monomer is styrene, methacrylic acid, methyl methacrylate, Isobutyl methacrylate according to 3: 2:3:2 ratio is mixed;
The initiator is tert-butyl hydroperoxide;
The neutralizer is ethylenediamine;
The water is deionized water.
The water soluble acrylic resin is Soluryl-820;
The amino resins is melamine resin;
The hydrophilic surfactant is sodium carboxymethylcellulose pyce;
The nano-carbon material is graphene;
The wetting agent is BYK180;
The levelling agent is BYK331;
The cosolvent is ethyl alcohol, butyl glycol ether, water according to 6:3:1 ratio mixes.
In order to prove technique effect caused by technical scheme of the present invention, spy is by embodiment one to embodiment 12 Constituent content weighs raw material, and epoxy resin is dissolved in the mixed solvent, and modified monomer and benzoyl peroxide are added dropwise at 110 DEG C Mixture, time for adding 1h then keeps the temperature 3h, discharges after cooling again, and ethanol amine is sequentially added under high speed dispersor stirring And water, rotating speed 700r/ minutes stir 30min, obtain uniform modified aqueous epoxy resin.
By the constituent content in embodiment one to embodiment 12 by modified aqueous epoxy resin, water-soluble acrylic tree Fat, nano-carbon material, auxiliary agent, cosolvent and water are uniformly mixed in high speed dispersor, rotating speed 700r/min, stir 2h, then Grinding distribution is to 20um fineness hereinafter, discharging acquisition nano-sized carbon dispersed paste is spare in sand mill.By melamino-formaldehyde tree Fat is added in nano-sized carbon dispersed paste, and high-speed stirred is uniformly mixed, rotating speed 700r/min, 300min is stirred, with 300 mesh filter screen mistakes Filter is to get to finished product coating.It is 170 degree that film-forming process, which uses roll coating process, solidification temperature, and the time is 2 minutes.After coating film forming Infrared radiation coefficient 0.94, thermal conductivity 0.56W/mK, hardness 3H, 7.5 degree of contact angle.
The experimental results statistics such as following table of the sample of gained after the present invention is also implemented each embodiment:
2 sample tests of table are summarized
Sample Infrared radiation coefficient Thermal conductivity (W/mK) Hardness Contact angle (degree)
Embodiment one 0.94 0.66 3H 7.5
Embodiment two 0.94 0.75 3H 8
Embodiment three 0.935 0.57 3H 7
Example IV 0.94 0.91 3H 8
Embodiment five 0.94 0.75 3H 7.9
Embodiment six 0.95 0.78 3H 7.8
Embodiment seven 0.94 0.67 3H 8
Embodiment eight 0.93 0.75 3H 8
Embodiment nine 0.96 1.25 3H 8
Embodiment ten 0.96 1.43 3H 8.2
Embodiment 11 0.94 1.12 3H 8.5
Embodiment 12 0.91 0.55 3H 7.9
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry For personnel it should be appreciated that the present invention is not limited by step embodiment, that described in step embodiment and specification is the present invention Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variation and Improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent Object defines.

Claims (13)

1. a kind of heat dissipation hydrophilic coating, it is characterised in that:It is formed substantially and weight percent is:
Wherein, the modified aqueous epoxy resin is aqueous acrylic modified epoxy resin, is graft-polymerized shape by following components At water-base resin:
The modified monomer is styrene and acrylic acid, methyl acrylate, ethyl acrylate, butyl acrylate, i-butyl Ester, Hexyl 2-propenoate, Isooctyl acrylate monomer, lauryl acrylate, benzyl acrylate, cyclohexyl acrylate, perfluoroethyl alkane Base ester, hydroxy ethyl phosphate, isobornyl acrylate, acrylic acid tetrahydrofuran methyl esters, methacrylic acid, metering system Sour methyl esters, ethyl methacrylate, butyl methacrylate, Isobutyl methacrylate, methacrylic acid ester, metering system At least two kinds of in sour lauryl, isobornyl methacrylate, cyclohexyl methacrylate are arbitrarily composed.
2. a kind of heat dissipation hydrophilic coating according to claim 1, it is characterised in that:The water soluble acrylic resin is the moon Ionic, molecular weight 1500~15000.
3. a kind of heat dissipation hydrophilic coating according to claim 1, it is characterised in that:The amino resins is melamine first Any one or arbitrary combination of urea formaldehyde, Lauxite, hydrocarbon-based melamine formaldehyde resin.
4. a kind of heat dissipation hydrophilic coating according to claim 1, it is characterised in that:The hydrophilic surfactant is alkyl Sulfonate, alkyl sulfonic acid alcohol ether, alkylbenzene sulfonate, cetyl trimethylammonium bromide, polyethylene glycol, hydroxymethyl cellulose, Sodium carboxymethylcellulose pyce, ethyl cellulose, methylcellulose, carboxymethyl cellulose, hydroxypropyl methyl cellulose, polyvinylpyrrolidine Logical any one of ketone, polyvinyl alcohol, Qula or two or more combinations.
5. a kind of heat dissipation hydrophilic coating according to claim 1, it is characterised in that:The nano-carbon material is carbon nanometer Pipe, or mixtures thereof one kind in grapheme material, the carbon nanotube be multi-walled carbon nanotube, single-walled carbon nanotube it is arbitrary A kind of or arbitrary combination, a diameter of 0.4~150nm of the carbon nanotube, length are 100nm~1mm;The grapheme material Synusia thickness for graphene, the grapheme material is 0.2nm~20nm, a diameter of 100nm~1mm.
6. a kind of heat dissipation hydrophilic coating according to claim 1, it is characterised in that:The wetting agent soaks for commercial carbon blacks Any one of agent.
7. a kind of heat dissipation hydrophilic coating according to claim 1, it is characterised in that:The levelling agent is polyether-modified organic Silicon or polyester resin change properties of organic silicon water-base resin levelling agent.
8. a kind of heat dissipation hydrophilic coating according to claim 1, it is characterised in that:The cosolvent is water, ethyl alcohol, second two Alcohol, butyl glycol ether, ethylene glycol monomethyl ether, ethylene glycol ethyl ether, propylene glycol, propylene glycol monomethyl ether, propylene glycol methyl ether acetate, propylene glycol At least two kinds of in ether, acetone, butanone, cyclohexanone, isopropanol, n-butanol are mixed with arbitrary proportion.
9. a kind of heat dissipation hydrophilic coating according to claim 1, it is characterised in that:The mixed solvent is ethylene glycol fourth Ether, ethylene glycol monomethyl ether, ethylene glycol ethyl ether, propylene glycol, propylene glycol monomethyl ether, propylene glycol methyl ether acetate, propylene-glycol ethyl ether, acetone, It is at least two kinds of with arbitrary proportion in butanone, cyclohexanone, isopropanol, n-butanol, toluene, repefral, ethyl acetate Mixing;
The epoxy resin is solid or liquid bisphenol A type epoxy resin;
The initiator is azodiisobutyronitrile, azo-bis-iso-dimethyl, azobisisoheptonitrile, benzoyl peroxide, mistake Aoxidize any one in diisopropylbenzene (DIPB), methyl ethyl ketone peroxide, di-cyclohexylperoxy di-carbonate, tert-butyl hydroperoxide or group It closes;
The neutralizer be ammonium hydroxide, ethanol amine, (2-hydroxyethyl)methylamine), N, N- dimethylethanolamines, ethylenediamine, triethylamine appoint Meaning is a kind of or combines.
10. a kind of heat dissipation hydrophilic coating according to claim 2, it is characterised in that:The water solubility third of the anionic Olefin(e) acid resin be selected from the trade mark be South Korea Han Hua Soluryl-20, Soluryl-70, Soluryl-90, Soluryl-120, Soluryl-820。
11. a kind of heat dissipation hydrophilic coating according to claim 6, it is characterised in that:The commercial carbon blacks wetting agent is selected from The trade mark is BYK191, BYK192, BYK193, BYK180, BYK181, BYK183, BYK194.
12. a kind of heat dissipation hydrophilic coating according to claim 7, it is characterised in that:The organic silicon modified by polyether or It is BYK331, BYK333, BYK378 that polyester resin change properties of organic silicon water-base resin levelling agent, which is selected from the trade mark,.
13. a kind of preparation method of heat dissipation hydrophilic coating according to claim 1, it is characterised in that:The preparation process For:
(1) preparation of modified aqueous epoxy resin:It is molten that epoxy resin is dissolved in mixing according to the component and weight percent In agent, the mixture of modified monomer and initiator is added dropwise at 80~150 DEG C, 0.5~5h of time for adding then keeps the temperature 1~5h again, It discharges after cooling, neutralizer and water is sequentially added under high speed dispersor stirring, 400~1500r/min of rotating speed stirs 10min ~2h obtains uniform modified aqueous epoxy resin;
(2) it by modified aqueous epoxy resin, water soluble acrylic resin, nano-carbon material, auxiliary agent, cosolvent and is gone according to proportioning Ionized water is uniformly mixed in high speed dispersor, 400~1500r/min of rotating speed, is stirred 0.5~5h, is then ground in sand mill Mill is dispersed to fineness as 20 μm hereinafter, discharging acquisition nano-sized carbon dispersed paste is spare;
(3) amino resins is added in nano-sized carbon dispersed paste, high-speed stirred is uniformly mixed, 400~1500r/min of rotating speed;
(4) it stirs 10 minutes~2 hours, is filtered to get to finished product coating with 200~400 mesh filter screens.
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