CN102108250A - Waterborne one coat anticorrosive paint and preparation method thereof - Google Patents
Waterborne one coat anticorrosive paint and preparation method thereof Download PDFInfo
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Abstract
The invention provides a waterborne one coat anticorrosive paint. The paint comprises the following components by weight percent: 20%-60% of waterborne polyurethane modified epoxy resin, 5%-25% of deionized water, 0.5%-5% of dispersant, 0.1%-5% of defoaming agent, 0.1%-5% of substrate wetting agent, 10%-40% of pigment and filler, 0.5%-10% of pH regulator, 0.5%-10% of thixotropic agent, 0.5%-5% of film-forming additive, 1%-5% of light stabilizer, 0.5%-5% of flash rust inhibitor and 0%-10% of salt-fog resistance additive. The invention provides the waterborne one coat anticorrosive paint which uses waterborne polyurethane modified epoxy resin as base material and is prepared by adding various additives into the base material. The anticorrosive paint has higher corrosion resistance and aging resistance; tests show that the ultraviolet aging resistance is up to 600h; the thermal stability is good, the paint can be cured at the room temperature after being sprayed; and the construction technology which integrates the primer coating and the finish coating into one step is simple.
Description
Technical field
The present invention relates to paint field, be specifically related to a kind of water-based primer-topcoat integrated anticorrosive lacquer and preparation method thereof.
Background technology
At present, domestic existing anticorrosive coating system adopts the composite anti-corrosive coating system of priming paint, intermediate coat, finish paint or priming paint and finish paint mostly.The main effect of priming paint is to lay a solid foundation on ground, and ground is had good adhesion, has rustless property; The main effect of intermediate coat is to increase thickness, thereby plays more efficiently shielding effect, also will make surfacing, helps the finish paint application; The finish paint significant feature is to prevent deleterious corrosive medium in the external environment, as the influence of oxygen, steam, sulfurous gas and chemical atmosphere, has attractive, decorative simultaneously.
But these two kinds of composite anti-corrosive coating system long construction periods, the operation sequence complexity, the cost cost is higher, also needs to consider respectively to be coated with the matching capacity problem of interlayer simultaneously, in case interlayer is in conjunction with bad, matching capacity is bad, causes whole coating system downgrade.Can bring the discharging of VOC (volatile organic compounds) after the solvent reducible coatings application, contaminate environment works the mischief to HUMAN HEALTH, and water-borne coatings with water as solvent, nontoxic, solvent-free smell.Therefore for simplifying coating construction process, meet the environmental protection development trend, water-based primer-topcoat integrated anticorrosive lacquer obtains more research in recent years.
The coating of water-based bottom surface unification since an application once, both serve as priming paint and also served as finish paint, its preservative property and ageing-resistant performance are had relatively high expectations, but the antifouling paste of water-based bottom surface unification at present is difficult to possess higher antiseptic property and ageing-resistant performance simultaneously, ultraviolet resistance is aging generally only to be about 400h, can not satisfy buildings and vehicle more and more higher be coated with reload request.
Summary of the invention
The problem that the present invention solves is to provide a kind of water-based primer-topcoat integrated anticorrosive lacquer, possesses higher antiseptic property and ageing-resistant performance simultaneously, can satisfy the higher reload request that is coated with.The present invention also provides a kind of preparation method of water-based primer-topcoat integrated anticorrosive lacquer.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of water-based primer-topcoat integrated anticorrosive lacquer comprises following component in percentage by weight:
Waterborne polyurethane modified epoxy resin 20%～60%
Deionized water 5%～25%
Dispersion agent 0.5%～5%
Defoamer 0.1%～5%
Base material wetting agent 0.1%～5%
Color stuffing 10%～40%
PH regulator agent 0.5%～10%
Thixotropic agent 0.5%～10%
Film coalescence aid 0.5%～5%
Photostabilizer 1%～5%
Dodge corrosion inhibitor 0.5%～5%
Salt spray resistance auxiliary agent 0%～10%.
As preferably, the synthesis material of described waterborne polyurethane modified epoxy resin comprises following component in percentage by weight: tolylene diisocyanate 30%～45%, polyester 25%～35%, hydrophilic chain extender 6%～8%, Resins, epoxy 5%～8%, chainextender 2%～10%, neutralizing agent 5%～10%, linking agent 1%～3%, acetone 10%～20%.
As preferably, described dispersion agent is one or more among ammonium polyacrylate salt, polyacrylic acid sodium salt, poly carboxylic acid ammonium salt or the polycarboxylate sodium.
As preferably, described defoamer is silicone antifoam agent or fluorine modified siloxane defoamer.
As preferably, described base material wetting agent is a polyether siloxane copolymer.
As preferably, described color stuffing is one or more in titanium dioxide, talcum powder, carbon black, mica powder, ceramic or the silicon powder.
As preferably, described pH regulator agent is ammoniacal liquor, N, one or more in N-dimethylethanolamine, 2-amino-2-methyl-1-propanol or the trolamine.
As preferably, described thixotropic agent is one or more in aerosil, organobentonite, hydrogenated castor oil or the polyamide wax.
As preferably, described film coalescence aid is one or more in ethylene glycol monobutyl ether, propylene glycol monomethyl ether or the 12 carbon alcohol esters.
As preferably, described photostabilizer is one or more in benzophenone class, cyanoacrylate adhesive class, benzotriazole category or the triazines.
As preferably, described sudden strain of a muscle corrosion inhibitor is one or more among WT-795, SER-AD FA 179, SER-AD FA579, Raybo 60, the Raybo 75.
As preferably, described salt spray resistance auxiliary agent is one or more among LJ-270, F-310, TM-08,408, the ZT-719.
A kind of preparation method of water-based primer-topcoat integrated anticorrosive lacquer may further comprise the steps:
A) waterborne polyurethane modified epoxy resin, deionized water, dispersion agent, color stuffing, pH regulator agent and thixotropic agent are mixed stirring, be ground to fineness≤40 μ m;
B) will stir in defoamer, base material wetting agent, film coalescence aid, photostabilizer, sudden strain of a muscle corrosion inhibitor and the salt spray resistance auxiliary agent adding mixture that upward step obtains;
C) with b) mixture that obtains carries out filtering and impurity removing;
D) pH of adjusting mixture is 8～9, viscosity 〉=3.0Pas;
The weight percent content of each composition is: waterborne polyurethane modified epoxy resin 20%～60%, deionized water 5%～25%, dispersion agent 0.5%～5%, defoamer 0.1%～5%, base material wetting agent 0.1%～5%, color stuffing are 10%～40%, pH regulator agent 0.5%～10%, thixotropic agent 0.5%～10%, film coalescence aid 0.5%～5%, photostabilizer 1%～5%, dodge corrosion inhibitor 0.5%～5%, salt spray resistance auxiliary agent 0%～10%.
Water-based primer-topcoat integrated anticorrosive lacquer provided by the invention, with the waterborne polyurethane modified epoxy resin is base-material, adding multiple auxiliary agent is prepared from, have higher antiseptic property and ageing-resistant performance simultaneously, through the aging 600h that is of experiment ultraviolet resistance, heat-resistant stability is good, spraying back ambient cure, and bottom surface unification construction technology is simple.
Embodiment
In order further to understand the present invention, below in conjunction with embodiment the preferred embodiment of the invention is described, but should be appreciated that these describe just to further specifying the features and advantages of the present invention, rather than to the restriction of claim of the present invention.
The invention provides a kind of water-based primer-topcoat integrated anticorrosive lacquer, comprise following component in percentage by weight: waterborne polyurethane modified epoxy resin 20%～60%, deionized water 5%～25%, dispersion agent 0.5%～5%, defoamer 0.1%～5%, base material wetting agent 0.1%～5%, color stuffing is 10%～40%, pH regulator agent 0.5%～10%, thixotropic agent 0.5%～10%, film coalescence aid 0.5%～5%, photostabilizer 1%～5% dodges corrosion inhibitor 0.5%～5%, salt spray resistance auxiliary agent 0%～10%.
Waterborne polyurethane modified epoxy resin is the main component of water-based primer-topcoat integrated anticorrosive lacquer of the present invention, be by urethane and Resins, epoxy generation copolymerization, has higher over-all properties, strong as easy curing, physical strength height, adhesive power, have better heat-resisting, water tolerance and solvent resistance etc.The synthesis material of waterborne polyurethane modified epoxy resin preferably includes following component in percentage by weight among the present invention: tolylene diisocyanate 30%～45%, polyester 25%～35%, hydrophilic chain extender 6%～8%, Resins, epoxy 5%～8%, chainextender 2%～10%, neutralizing agent 5%～10%, linking agent 1%～3%, acetone 10%～20%.
The preparation method of waterborne polyurethane modified epoxy resin of the present invention is:
(1) polyester and tolylene diisocyanate are mixed stirring, be warming up to 80 ℃～100 ℃ reaction 40min～1.5h gradually;
(2) add hydrophilic chain extender and linking agent, continue to stir, reaction 1h～3h obtains mixture;
(3) Resins, epoxy is dissolved in the acetone, is added dropwise to copolymerization 40min～2h in the mixture, add the viscosity of an amount of acetone in the reaction process with the control reaction system;
(4) be cooled to about 40 ℃～50 ℃, add the neutralizing agent neutralization, reaction 20min～40min;
(5) resultant is dissolved in the deionized water, adds chainextender and carry out chain extension, the speed stirring 20min～40min with 1000 commentaries on classics/min～2000 commentaries on classics/min makes waterborne polyurethane modified epoxy resin.
Dispersion agent can disperse color stuffing by the stable process of wetting, grinding and dispersion, coupling and parcel, and keeps the relatively stable of dispersion system.Dispersion agent is preferably one or more among ammonium polyacrylate salt, polyacrylic acid sodium salt, poly carboxylic acid ammonium salt or the polycarboxylate sodium among the present invention, has good dispersion effect, can reduce dope viscosity, improve stability in storage, increase gloss and the levelling property of coating.
Auxiliary agent in the coating belongs to tensio-active agent mostly, can change the surface tension of coating, cause coating itself to exist easy foaming or make the internal factor of foam stabilization, need to use various high-speed mixers in the preparation process of coating, use methods such as spraying, showering during application, in these processes, all can make coating produce foam.Air in the foam not only can hinder the dispersion of color stuffing, also makes usage ratio of equipment not enough and influence output, and the bubble that produces in the construction can cause the coating surface defective, has both diminished outward appearance, influences the preservative property and the weathering resistance of paint film again.Therefore for preventing from use to produce foam, need to add defoamer in the coating.Defoamer is preferably silicone antifoam agent or fluorine modified siloxane defoamer among the present invention, and chemical property is stable, and the froth breaking effect is strong, and consumption is few.
The base material wetting agent can help the moistening various substrate surface of coating, even moisteningly has a very base material of low surface energy, therefore can prevent such as surface imperfection such as shrinkage cavity or cissings, and the flowing of paint film, levelling property and attached outstanding power also will be improved.The base material wetting agent is preferably polyether siloxane copolymer among the present invention.
Color stuffing is titanium dioxide, talcum powder, carbon black, mica powder, ceramic or silicon powder has important booster action to the performance of coating, can the filling hole, make the coating densification, and improve sticking power, give coating color, texture and opacifying power.
The pH regulator agent is preferably ammoniacal liquor, N, one or more in N-dimethylethanolamine, 2-amino-2-methyl-1-propanol or the trolamine.
After adding thixotropic agent in the coating, when coating is subjected to shear action (as stirring or brushing), viscosity temporarily descends, and when not being subjected to shear action, returns to original viscosity again gradually.This specific character can make finish paint prevent the pigment precipitation when storing, and improves brushing property, can make to film thicker and sagging not when application.The thixotropic agent that the present invention uses is preferably one or more in aerosil, organobentonite, hydrogenated castor oil or the polyamide wax.
Film coalescence aid can promote coating plastic flow and recoverable deformation, improves coalescent performance, can be in film forming in the construction temperature scope extensively, and the film coalescence aid volatilization can not influence the characteristic of filming after the film forming.The membrane-forming agent that the present invention uses is preferably one or more in ethylene glycol monobutyl ether, propylene glycol monomethyl ether or the 12 carbon alcohol esters, under less consumption situation, can very reduce the minimum film-forming temperature of coating effectively, film forming continuity is good, has suitable volatility, in conjunction with tight more, continuous, paint film is level and smooth, even, and its scrub resistance, color developing, glossiness and weathering resistance etc. are greatly improved when making coating become mould.
Add photostabilizer and can keep the stable of coating, it is aging to prevent that coating from decomposing.Coating can cause autoxidation because of absorbing ultraviolet ray under dayligth effect, cause polymer degradation, makes the mechanical property of the waterproof layer that coating forms worsen.Photostabilizer is by shielding, uv reflectance or absorption ultraviolet ray and be translated into harmless heat energy, or quencher is by the excited state of ultraviolet ray excited molecule or group, make it be returned to ground state, or catch the free radical that produces because of photoxidation reduction, suppress photoxidation, prevent that waterproof layer is subjected to ultraviolet ray and destroys, and light stability of self and Heat stability is good.Photostabilizer is preferably one or more in benzophenone class, cyanoacrylate adhesive class, benzotriazole category or the triazines among the present invention.
Because the electric conductivity height of water makes metal perishable, the distinct issues that water-borne coatings is coated on the metal substrate are erosion to occur dodging.Dodging erosion is the point-like rust staining of filming and taking place in drying process, outstanding easily generation on the sandblast ground.Dodge corrosion inhibitor and can prevent that water-borne coatings from erosion taking place to dodge on metal substrate, the sudden strain of a muscle corrosion inhibitor that the present invention uses is preferably one or more among WT-795 (U.S. Si Dan benefit the nation the production of border chemical industry company limited), SER-AD FA 179 (Hai Mingsi), SER-AD FA 579, Raybo 60 (the auspicious precious auxiliary agent of the U.S.), the Raybo 75.
The salt spray resistance auxiliary agent can improve the compactness and the salt fog resistance of filming, and not influence of storage to coating, the salt spray resistance auxiliary agent that the present invention uses is preferably one or more among LJ-270 (Guangzhou bright good novel material company), F-310 (Guangzhou side's scape trade Co., Ltd), TM-08 (the flat Chemical Industry Science Co., Ltd of Guangzhou coloured glaze), 408 (the flat Chemical Industry Science Co., Ltd of Guangzhou coloured glaze), the ZT-719 (the way chemical industry company limited in Beijing), is the salt spray resistance auxiliary agent that this area is used always.
The preparation method of water-based primer-topcoat integrated anticorrosive lacquer provided by the invention may further comprise the steps:
A) take by weighing waterborne polyurethane modified epoxy resin, deionized water, dispersion agent, color stuffing, pH regulator agent and thixotropic agent in proportion, mixing and stirring, rotating speed is 1200 commentaries on classics/min～1800 commentaries on classics/min, is ground to fineness≤40 μ m then;
B) take by weighing defoamer, base material wetting agent, film coalescence aid, photostabilizer, sudden strain of a muscle corrosion inhibitor and last the going on foot in the mixture that obtains of salt spray resistance auxiliary agent adding in proportion and stir, rotating speed is 1000 commentaries on classics/min～1500 commentaries on classics/min;
C) with b) mixture that obtains carries out filtering and impurity removing;
D) pH with an amount of pH regulator agent adjusting mixture is 8～9, and the viscosity 〉=3.0Pas with proper amount of deionized water adjusting mixture makes water-based primer-topcoat integrated anticorrosive coating;
Wherein the weight percent content of each composition is: waterborne polyurethane modified epoxy resin 20%～60%, deionized water 5%～25%, dispersion agent 0.5%～5%, defoamer 0.1%～5%, base material wetting agent 0.1%～5%, color stuffing are 10%～40%, pH regulator agent 0.5%～10%, thixotropic agent 0.5%～10%, film coalescence aid 0.5%～5%, photostabilizer 1%～5%, dodge corrosion inhibitor 0.5%～5%, salt spray resistance auxiliary agent 0%～10%.
Embodiment 1: synthetic waterborne polyurethane modified epoxy resin
(1) 250kg polyether glycol and 380kg tolylene diisocyanate are mixed stirring, be warming up to 100 ℃ of reaction 1.5h gradually;
(2) add 60kg dimethylolpropionic acid and 20kg TriMethylolPropane(TMP), continue to stir, reaction 1h obtains mixture;
(3) 70kg Resins, epoxy E-51 is dissolved in the 120kg acetone, is added dropwise to copolymer-1 h in the mixture, can add in the reaction process an amount of acetone with control reaction system viscosity to 70mPas;
(4) be cooled to about 40 ℃, add the neutralization of 60kg triethylamine, reaction 20min;
(5) resultant is dissolved in the deionized water, adds the 40kg quadrol and carry out chain extension, the speed stirring 30min with 1000 commentaries on classics/min makes waterborne polyurethane modified epoxy resin.
Embodiment 2:
A) take by weighing waterborne polyurethane modified epoxy resin 300kg, deionized water 200kg, Tego740W dispersion agent 10kg, the carbon black 25kg of goldschmidt chemical corporation, the SW 111 type rust-stabilising pigment 65kg of Britain Halox company, 800 order mica powder 80kg, ceramic 100kg, silicon powder 120Kg, the N of preparation, N-dimethylethanolamine 10kg and Degussa aerosil 10kg, mixing and stirring, rotating speed is 1500 commentaries on classics/min, is ground to fineness≤40 μ m then;
B) the film coalescence aid 12 carbon alcohol ester 10kg, Taiwan that take by weighing KL245 base material wetting agent 10kg, the Yi Shi Man of goldschmidt chemical corporation Tego825 defoamer 10kg, goldschmidt chemical corporation forever the Raybo 75 of photostabilizer 20kg, the U.S. Rui Bao company of light group dodge to go on foot in the mixture that obtains in LJ-270 salt spray resistance auxiliary agent 20kg addings of the bright good novel material of corrosion inhibitor 10kg, Guangzhou company and stir, rotating speed is 1200 commentaries on classics/min;
C) with b) mixture that obtains carries out filtering and impurity removing;
D) pH of adjusting mixture is 8.7, and the viscosity of regulating mixture with proper amount of deionized water is 3.4Pas, makes antifouling paste.
Embodiment 3:
A) take by weighing waterborne polyurethane modified epoxy resin 400kg, the deionized water 150kg of preparation, BYK110 dispersion agent 30kg, the carbon black 20kg of German Bi Ke chemical company, SW111 type rust-stabilising pigment 20kg, 800 order mica powder 50kg, ceramic 50kg, silicon powder 60Kg, pH regulator agent trolamine 40kg and the hydrogenated castor oil 40kg of Britain Halox company, mixing and stirring, rotating speed is 1500 commentaries on classics/min, is ground to fineness≤40 μ m then;
B) take by weighing Guangzhou China HX-2013 of auxiliary agent chemical company defoamer 30kg, Lip river, Guangdong city speed trade Co., Ltd SNW 311 base material wetting agent 20kg, Qingzhou shellfish specialization worker company limited film coalescence aid 20kg, Shijiazhuang stone coking worker limited liability company hindered amine light stabilizer 10kg, SER-ADFA 179 sea names this dodge to go on foot in the mixture that obtains in F-310 salt spray resistance auxiliary agent 40kg addings of corrosion inhibitor 20kg, Guangzhou side's scape trade Co., Ltd and stir, rotating speed is 1200 commentaries on classics/min;
C) with b) mixture that obtains carries out filtering and impurity removing;
D) pH of adjusting mixture is 8.8, and the viscosity of regulating mixture with proper amount of deionized water is 3.5Pas, makes antifouling paste.
Embodiment 4:
A) take by weighing the Syntron of waterborne polyurethane modified epoxy resin 450kg, deionized water 100kg, the Guangzhou Ou Peng chemical industry company limited of preparation
The SW 111 type rust-stabilising pigment 25kg of A 11 sodium polyacrylate dipersant 20kg, carbon black 25kg, Britain Halox company, 800 order mica powder 50kg, ceramic 55kg, silicon powder 65Kg, N, the BYK420 thixotropic agent 20kg of N-dimethylethanolamine 40kg and BYK company, mixing and stirring, rotating speed is 1500 commentaries on classics/min, is ground to fineness≤40 μ m then;
B) the benefit the nation WT-795 of border chemical industry company limited of GW-531 benzophoenone light stabiliziers 30kg, the U.S. Si Dan that takes by weighing KL245 base material wetting agent 20kg, Li Ande DPNB film coalescence aid 20kg, Beijing addition auxiliary agent institute of the modest 5300 polysiloxane defoamers 20kg of sea name Si De, goldschmidt chemical corporation dodges to go on foot in the mixture that obtains in the ZT-719 salt spray resistance auxiliary agent 50kg adding of way chemical industry company limited in corrosion inhibitor 10kg, Beijing and stirs, and rotating speed is 1200 commentaries on classics/min;
C) with b) mixture that obtains carries out filtering and impurity removing;
D) pH of adjusting mixture is 8.5, and the viscosity of regulating mixture with proper amount of deionized water is 3.7Pas, makes antifouling paste.
The water-based primer-topcoat integrated anticorrosive lacquer of embodiment 2-4 preparation is detected, and data are as shown in table 1:
Table 1 water-based primer-topcoat integrated anticorrosive lacquer salient features test result
By detecting, can find that water-based primer-topcoat integrated anticorrosive lacquer of the present invention has higher salt spray corrosion resistance and ageing-resistant performance, ultraviolet resistance is aging can to reach 600h, heat-resistant stability is good, and have good mechanical propertys such as sticking power, can be in ambient cure, construction technology is simple, has practical value.
More than a kind of water-based primer-topcoat integrated anticorrosive lacquer provided by the present invention and preparation method thereof is described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (13)
1. a water-based primer-topcoat integrated anticorrosive lacquer is characterized in that, comprises following component in percentage by weight:
Waterborne polyurethane modified epoxy resin 20%～60%
Deionized water 5%～25%
Dispersion agent 0.5%～5%
Defoamer 0.1%～5%
Base material wetting agent 0.1%～5%
Color stuffing 10%～40%
PH regulator agent 0.5%～10%
Thixotropic agent 0.5%～10%
Film coalescence aid 0.5%～5%
Photostabilizer 1%～5%
Dodge corrosion inhibitor 0.5%～5%
Salt spray resistance auxiliary agent 0%～10%.
2. water-based primer-topcoat integrated anticorrosive lacquer according to claim 1, it is characterized in that the synthesis material of described waterborne polyurethane modified epoxy resin comprises following component in percentage by weight: tolylene diisocyanate 30%～45%, polyester 25%～35%, hydrophilic chain extender 6%～8%, Resins, epoxy 5%～8%, chainextender 2%～10%, neutralizing agent 5%～10%, linking agent 1%～3%, acetone 10%～20%.
3. water-based primer-topcoat integrated anticorrosive lacquer according to claim 1 is characterized in that described dispersion agent is one or more among ammonium polyacrylate salt, polyacrylic acid sodium salt, poly carboxylic acid ammonium salt or the polycarboxylate sodium.
4. water-based primer-topcoat integrated anticorrosive lacquer according to claim 1 is characterized in that described defoamer is silicone antifoam agent or fluorine modified siloxane defoamer.
5. water-based primer-topcoat integrated anticorrosive lacquer according to claim 1 is characterized in that described base material wetting agent is a polyether siloxane copolymer.
6. water-based primer-topcoat integrated anticorrosive lacquer according to claim 1 is characterized in that described color stuffing is one or more in titanium dioxide, talcum powder, carbon black, mica powder, ceramic or the silicon powder.
7. water-based primer-topcoat integrated anticorrosive lacquer according to claim 1 is characterized in that described pH regulator agent is ammoniacal liquor, N, one or more in N-dimethylethanolamine, 2-amino-2-methyl-1-propanol or the trolamine.
8. water-based primer-topcoat integrated anticorrosive lacquer according to claim 1 is characterized in that described thixotropic agent is one or more in aerosil, organobentonite, hydrogenated castor oil or the polyamide wax.
9. water-based primer-topcoat integrated anticorrosive lacquer according to claim 1 is characterized in that described film coalescence aid is one or more in ethylene glycol monobutyl ether, propylene glycol monomethyl ether or the 12 carbon alcohol esters.
10. water-based primer-topcoat integrated anticorrosive lacquer according to claim 1 is characterized in that described photostabilizer is one or more in benzophenone class, cyanoacrylate adhesive class, benzotriazole category or the triazines.
11. water-based primer-topcoat integrated anticorrosive lacquer according to claim 1 is characterized in that described sudden strain of a muscle corrosion inhibitor is one or more among WT-795, SER-AD FA 179, SER-AD FA 579, Raybo60, the Raybo 75.
12. water-based primer-topcoat integrated anticorrosive lacquer according to claim 1 is characterized in that described salt spray resistance auxiliary agent is one or more among LJ-270, F-310, TM-08,408, the ZT-719.
13. the preparation method of a water-based primer-topcoat integrated anticorrosive lacquer is characterized in that, may further comprise the steps:
A) waterborne polyurethane modified epoxy resin, deionized water, dispersion agent, color stuffing, pH regulator agent and thixotropic agent are mixed stirring, be ground to fineness≤40 μ m;
B) will stir in defoamer, base material wetting agent, film coalescence aid, photostabilizer, sudden strain of a muscle corrosion inhibitor and the salt spray resistance auxiliary agent adding mixture that upward step obtains;
C) with b) mixture that obtains carries out filtering and impurity removing;
D) pH of adjusting mixture is 8～9, viscosity 〉=3.0Pas;
The weight percent content of each composition is: waterborne polyurethane modified epoxy resin 20%～60%, deionized water 5%～25%, dispersion agent 0.5%～5%, defoamer 0.1%～5%, base material wetting agent 0.1%～5%, color stuffing are 10%～40%, pH regulator agent 0.5%～10%, thixotropic agent 0.5%～10%, film coalescence aid 0.5%～5%, photostabilizer 1%～5%, dodge corrosion inhibitor 0.5%～5%, salt spray resistance auxiliary agent 0%～10%.
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| CN101798484A (en) * | 2010-03-05 | 2010-08-11 | 四川大学 | Dendritic organic-inorganic hybrid water-borne nano polyurethane-epoxy anticorrosive coating and preparation method thereof |
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