CN102174285B - Aqueous anti-corrosion and anti-frost paint for steel structure and preparation method thereof - Google Patents
Aqueous anti-corrosion and anti-frost paint for steel structure and preparation method thereof Download PDFInfo
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- CN102174285B CN102174285B CN 201110051550 CN201110051550A CN102174285B CN 102174285 B CN102174285 B CN 102174285B CN 201110051550 CN201110051550 CN 201110051550 CN 201110051550 A CN201110051550 A CN 201110051550A CN 102174285 B CN102174285 B CN 102174285B
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Abstract
The invention relates to an aqueous anti-corrosion and anti-frost paint for a steel structure and a preparation method thereof. The paint comprises a first component and a second component, wherein the first component is coated on the surface of the steel structure to form a bottom coating, and the second component is coated on the surface of the bottom coating to form a surface coating. The first component comprises chlorethylene modified polyacrylic acid emulsion, a high molecular chelating agent, a zinc phosphate anti-rust paint, an antifoaming agent, water and the like; and the second component comprises acrylic acid modified fluorocarbon emulsion, a benzotriazole type ultraviolet absorber, a hinderdeamine type light stabilizer, an organosilicon hydrophobic agent, water and the like. The paint provided by the invention is prepared by taking water as a solvent and is safe and environmentally-friendly; the oxime structure containing high molecular chelating agent is adopted, so thatadhesion of the paint on the surface of metal is greatly increased; meanwhile, hydrophobicity of the surface of the paint is improved through the organosilicon hydrophobic agent, so that the paint isfree from influence of rain washing and frosting; the paint has a rational formula; and the preparation method is simple and can be widely applied to protection of various steel structures such as galvanized steel, aluminum alloy and the like.
Description
Technical field
The present invention relates to a kind of water-repellent preservation frost protection coating for steel construction and preparation method thereof.
Background technology
Chemistry or electrochemical reaction can take place when corrosive medium in the environment contacts and corrosion in steel surface, the performance of steel is degenerated, even destroy, so the aseptic technic of steel construction plays a part very important for safety performance and the weather resistance of steel construction.There is the destruction of a lot of steel members to be caused by corrosion in the actual engineering.The anti-corrosion method of steel construction generally has two kinds: the one, and the weave construction of change steel adds elements such as copper, nickel, chromium, tin in the steel smelting process, improve the resistance to corrosion of steel, and this method cost is higher, and use range is less, for example stainless steel; The 2nd, cover various protective layers at steel surface, steel and corrosive medium to be isolated, this kind method cost is lower, and effect is better, applied range.
Pot galvanize is one of common measure of anticorrosion of steel structure erosion, and it is that the steel member after the rust cleaning is immersed in the zinc liquid of high temperature melt, makes the steel component surface adhere to the zinc layer, thereby plays etch-proof purpose.This method industrialization degree height, steady quality is used for being subjected to atomospheric corrosion more seriously and the outdoor steel structure of easy-maintaining not by a large amount of, as a large amount of electric transmission pole towers, communications tower etc., but the zinc layer is easy to generate zinc salt after being to use for some time, and surface color is aging very fast, ornamental poor.Common way is to apply protective system again on the surface of galvanized steel, to protect zinc coating and to delay the aging of zinc coating, also plays certain decoration function simultaneously.There are problems in traditional protective system that is used for steel construction, as: (1) uses a large amount of organic solvents in the preparation of coating and construction process, contaminate environment is detrimental to health; (2) contain zinc-chrome yellow in the coating usually, cause heavy metal contamination; (3) coating is generally to the poor adhesive force of galvanized steel structure; (4) filmogen is based on resol and Resins, epoxy, and weathering resistance is poor, the phenomenon that occurs variable color easily, ftractures and come off; (5) it is impaired easily that coatingsurface is subjected to the influence in sleet sky or frost sky.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, a kind of eco-friendly anticorrosion frost protection coating is provided, it is to steel construction, especially have good tack to the difficult galvanized steel structure of adhering to of coating, simultaneously its surface has good hydrophobicity, can prevent that coatingsurface is impaired because of rain drop erosion or freezed in winter.
The present invention also will provide a kind of preparation method of above-mentioned anticorrosion frost protection coating simultaneously.
For solving above technical problem, the present invention takes following technical scheme:
A kind of anticorrosion frost protection coating for steel construction, first component and second component that comprise independent packaging, wherein first component is used for being coated in the steel construction surface to form undercoat, and second component is used for being coated in described undercoat surface to form finishing coat, by weight percentage
First component is mixed by following component: vinylchlorid modified polyacrylic acid emulsion 30%～50%, titanium dioxide 15%～25%, talcum powder 5%～10%, carbon black 0.1%～0.5%, magnesium aluminum silicate 0.2%～0.5%, dispersion agent 0.5%～1.5%, wetting agent 0.1%～0.5%, anti-settling agent 0.1%～3%, the agent 0.1%～0.5% of anti-sudden strain of a muscle rust, pH regulator agent 0.5%～1.5%, film coalescence aid 1%～3%, high-molecular chelating agent 1%～5%, zinc phosphate rust-preventive pigment 3%～5%, aluminium triphosphate rust-stabilising pigment 2%～3%, defoamer 0.2%～0.5% and water 15%～25%;
Second component is mixed by following component: acrylic acid modified fluorine carbon emulsion 70%～80%, wetting agent 0.1%～0.5%, film coalescence aid 1%～3%, pH regulator agent 0.5%～1.5%, benzotriazole category ultraviolet absorbers 0.5%～1.5%, hindered amine light stabilizer 0.5%～1.5%, organic silicon hydrophobic agent 1%～5% and water 10%～25%;
Described wetting agent is the TRITON X-405 wetting agent of DOW company production or the Surfynol 104BC wetting agent of U.S. aerification chemical product company limited production; Described anti-settling agent is one or more the combination in cured of wilkinite, aerosil and oxidic polyethylene; The agent of described anti-sudden strain of a muscle rust is ammonium benzoate or Sodium Nitrite; Described pH regulator agent is one or more the combination in dimethylethanolamine, 2-amino-2-methyl-1-propanol and the 1-Yi Bingchunan; Described film coalescence aid is lauryl alcohol ester, 2,2, the combination of one or more in 4-trimethylammonium-1,3 pentanediol mono isobutyrate, butyl glycol ether, dipropylene glycol methyl ether and the dipropylene glycol butyl ether.
Preferably, described dispersion agent is the macromolecule dispersing agent that has the pigment affinity groups.
Preferably, contain the oxime structure in the molecular structure of described high-molecular chelating agent.
Preferably, described defoamer is organosilicon, polyethers or aliphatic hydrocarbon compound.
In the above-mentioned anticorrosion frost protection coating, the preparation method of first component is as follows:
(1), get the water of 80% formula ratio, the dispersion agent of formula ratio and the wetting agent of formula ratio, under 500～700 rev/mins condition, stirred 8～12 minutes, get premix;
(2), keep the rotating speed of step (1) constant, the titanium dioxide, talcum powder, carbon black, magnesium aluminum silicate, anti-settling agent, the anti-defoamer that dodges rust agent, zinc phosphate rust-preventive pigment, aluminium triphosphate rust-stabilising pigment and 60%～70% formula ratio that add formula ratio successively in step (1) the gained premix, rotating speed is risen to 1800～2200 rev/mins then, continue to stir 18～22 minutes;
(3), will be transferred in the shredder through the mixed solution of step (2), and be ground to that the solid particulate fineness is less than or equal to 30 microns in the mixed solution;
(4), with 600 rev/mins rotating speed the mixed solution through step (3) is stirred, and add vinylchlorid modified acrylic acid emulsion, pH regulator agent, film coalescence aid, high-molecular chelating agent and the remaining defoamer of formula ratio successively in this mixed solution, adjust viscosity of mixed liquid to 60～80 second/Zhan2# cup with remaining water, and under 300～400 rev/mins rotating speed, continue to stir 8～12 minutes;
(5), be that 50 microns filter bag filters step (4) gained mixed solution with the aperture, filtrate is first component of described water-repellent preservation frost protection coating;
The preparation method of second component is as follows:
(1), get the water of 80% formula ratio, the wetting agent of formula ratio and the film coalescence aid of formula ratio, under 500～700 rev/mins condition, stirred 8～12 minutes, get premix;
(2), keep the rotating speed of step (1) constant, the acrylic acid modified fluorine carbon emulsion, benzotriazole category ultraviolet absorbers, hindered amine light stabilizer and the organic silicon hydrophobic agent that add formula ratio successively in step (1) the gained premix, rotating speed is risen to 2000 rev/mins, continue to stir 1 hour;
(3), rotating speed transfers to 600 rev/mins, to through adding pH regulator agent and remaining water in the mixed solution of step (2), adjust viscosity to 60～80 second/Zhan2# cup, and under 300～400 rev/mins rotating speed, continue to stir 8～12 minutes;
(4), be that 50 microns filter bag filters step (3) gained mixed solution with the aperture, filtrate is second component of described water-repellent preservation frost protection coating.
Because the enforcement of above technical scheme, the present invention compared with prior art has following advantage:
The present invention is used for the anticorrosion frost protection coating of steel construction, adopts vinylchlorid modified acrylic acid emulsion and acrylic acid modified fluorine carbon emulsion as film-forming resin, and solvent is water, safety and environmental protection; Metal ion by high-molecular chelating agent and metal substrate surface in first component form complex bonds can significantly improve coating in the metallic surface sticking power of (especially coating be difficult to adhere to surface of galvanized steel); The adding of organic silicon hydrophobic agent can improve the hydrophobicity of coating surface in second component, makes finishing coat avoid rain drop erosion and frost influence.The anticorrosion frost protection coating of the present invention, prescription rationally, environmental friendliness adopts the preparation method of batch mixing, and is simple to operate, the finishing coat that the undercoat that is formed by first component and second component form can make steel construction obtain multiple-effect and comprehensive the protection.
Embodiment
The first component prescription of the anticorrosion frost protection coating of the present invention is (by weight percentage):
The second component prescription is (by weight percentage):
In the above-mentioned prescription, described dispersion agent is the macromolecule dispersing agent that has the pigment affinity groups, specifically can be selected from BORCHI GEN 0451 dispersion agent that DISPERBYK-190 dispersion agent that German BYK company produces or German BORCHER company produce;
Described wetting agent can be selected from the TRITON X-405 wetting agent of U.S. DOW company production or the Surfynol 104BC wetting agent that U.S. aerification chemical product company limited produces, and its effect mainly is can improve coating to the wettability of base material;
Described anti-settling agent can be selected from one or more the combination in cured of wilkinite, aerosil and oxidic polyethylene;
The agent of described anti-sudden strain of a muscle rust can be selected from ammonium benzoate or Sodium Nitrite, and anti-effect of dodging the rust agent is that the exposed metallic surface after avoiding handling produces to float when contact with water and becomes rusty;
Described pH regulator agent can be selected from one or more the combination in dimethylethanolamine (DMEA), 2-amino-2-methyl-1-propanol (as the AMP-95 of U.S. DOW company) and the 1-Yi Bingchunan;
Described film coalescence aid can be selected from lauryl alcohol ester, 2,2, the combination of one or more in 4-trimethylammonium-1,3 pentanediol mono isobutyrate (Texanol), butyl glycol ether, dipropylene glycol methyl ether, the dipropylene glycol butyl ether, the adding of film coalescence aid can be avoided crackle occurring in the coating drying process.
Described defoamer is optional from organosilicon, polyethers or aliphatic compound;
Described acrylic acid modified fluorine carbon emulsion is a kind of novel fluorocarbon material, can make coating possess excellent fast light weathering resistance;
Described benzotriazole category ultraviolet absorbers and hindered amine light stabilizer can Mulberry Extracts, delay the aging of coating, and the unique texture of organic silicon hydrophobic agent descends the surface tension of coating greatly, and rainwater etc. are difficult in the film coated surface drawout.
In addition, the high-molecular chelating agent described in the first component prescription is preferably and contains oxime in the molecular structure
The high-molecular chelating agent of structure.The oxime structure contains the lone-pair electron more than 2 pairs, is a bidentate group, and this bidentate group can form inner complex with the metal ion of metallic surface, thus make this high-molecular chelating agent securely riveting fix on the metallic surface.And other oxime structure divisions that do not form inner complex of described high-molecular chelating agent can be adsorbed on the surface of inner complex with the form of hydrogen bond, the effect that this heteroion is co-adsorption, increase the activity of sequestrant, made its adsorptive power to metal strengthen greatly.Its sequestering action mechanism model is as follows:
Simultaneously, the macromolecular chain of described high-molecular chelating agent can also form inierpeneirating network structure (IPN Interpenetrating Polymer Network) with the polyacrylic acid emulsion, promotes mechanical property and the chemical property of coating.
The anticorrosion frost protection coating of the present invention is taked the preparation method of batch mixing, and is specific as follows:
The preparation method of first component is:
(1), get the water of 80% formula ratio, the dispersion agent of formula ratio and the wetting agent of formula ratio, under 500～700 rev/mins condition, stirred 8～12 minutes, get premix;
(2), keep the rotating speed of step (1) constant, the titanium dioxide, talcum powder, carbon black, magnesium aluminum silicate, anti-settling agent, the anti-defoamer that dodges rust agent, zinc phosphate rust-preventive pigment, aluminium triphosphate rust-stabilising pigment and 60%～70% formula ratio that add formula ratio successively in step (1) the gained premix, rotating speed is risen to 1800～2200 rev/mins then, continue to stir 18～22 minutes;
(3), will be transferred in the shredder through the mixed solution of step (2), and be ground to that the solid particulate fineness is less than or equal to 30 microns in the mixed solution;
(4), with 600 rev/mins rotating speed step (3) gained mixed solution is stirred, and add vinylchlorid modified acrylic acid emulsion, pH regulator agent, film coalescence aid, high-molecular chelating agent and the remaining defoamer of formula ratio successively in this mixed solution, adjust viscosity of mixed liquid to 60～80 second/Zhan2# cup with remaining water, and under 300～400 rev/mins rotating speed, continue to stir 8～12 minutes;
(5), with 50 micrometer nylon filter bags step (4) gained mixed solution is filtered, filtrate is first component of the anticorrosion frost protection coating of the present invention;
The preparation method of second component is:
(1), get the water of 80% formula ratio, the wetting agent of formula ratio and the film coalescence aid of formula ratio, under 500～700 rev/mins condition, stirred 8～12 minutes, get premix;
(2), keep the rotating speed of step (1) constant, the acrylic acid modified fluorine carbon emulsion, benzotriazole category ultraviolet absorbers, hindered amine light stabilizer and the organic silicon hydrophobic agent that add formula ratio successively in step (1) the gained premix, rotating speed is risen to 2000 rev/mins, continue to stir 1 hour;
(3), rotating speed transfers to 600 rev/mins, to through adding pH regulator agent and remaining water in the mixed solution of step (2), adjust viscosity to 60～80 second/Zhan2# cup, and under 300～400 rev/mins rotating speed, continue to stir 8～12 minutes;
(4), with 50 micrometer nylon filter bags step (3) gained mixed solution is filtered, filtrate is second component of the anticorrosion frost protection coating of the present invention.
Above-mentioned preparation method's medium viscosity testing standard is with reference to GB/T 1723-93.
First component of the anticorrosion frost protection coating of the present invention is coated in the surface of general steel plate, hot-dip galvanizing sheet steel and aluminium alloy plate, be coated with membrane preparation method with reference to GB/T 1765-1979, sticking power, the salt spray resistance of the formed undercoat of first component are tested;
Second component of the anticorrosion frost protection coating of the present invention is coated in the surface of general steel plate, hot-dip galvanizing sheet steel and aluminium alloy plate, be coated with membrane preparation method with reference to GB/T 1765-1979, the QUV artificial weathering performance of the formed finishing coat of second component is tested;
Test result is shown in table 1:
Table 1 is coated on the performance comparison of undercoat or the finishing coat on different metal material surface
*Sticking power testing standard: GB/T 9286-98
*Salt spray resistance testing standard: GB/T 1771-91
*QUV artificial weathering testing standard: GB/T 1706
The present invention will be further described in detail below in conjunction with specific embodiment, but be not limited to these embodiment.
Embodiment 1
Prescription according to first component of the anticorrosion frost protection coating of present embodiment is (units by weight):
Its preparation method is as follows:
(1), get the water of 80% formula ratio, accurately weighing dispersion agent and wetting agent stirred 10 minutes under 600 rev/mins condition, got premix;
(2), keep the rotating speed of step (1) constant, the BYK-019 defoamer that adds various powders (being titanium dioxide, talcum powder, carbon black, magnesium aluminum silicate, aerosil, Sodium Nitrite, zinc phosphate rust-preventive pigment, the aluminium triphosphate rust-stabilising pigment of formula ratio) and 70% formula ratio successively in step (1) the gained premix, rotating speed is risen to 2000 rev/mins then, continue to stir high speed dispersion 20 minutes;
(3), will be transferred in the shredder through the mixed solution of step (2), and be ground to that the solid particulate fineness is less than or equal to 30 microns in the mixed solution;
(4), with 600 rev/mins rotating speed step (3) gained mixed solution is stirred, and add vinylchlorid modified acrylic acid emulsion, AMP-95, Texanol, high-molecular chelating agent and the remaining BYK-019 defoamer of formula ratio successively in this mixed solution, adjust viscosity of mixed liquid to 60～80 second/Zhan2# cup with remaining water, and under 300～400 rev/mins rotating speed, continue to stir 10 minutes with froth breaking at a slow speed;
(5), with 50 micrometer nylon filter bags step (4) gained mixed solution is filtered, filtrate is first component of the anticorrosion frost protection coating of present embodiment.
Prescription according to second component of the anticorrosion frost protection coating of present embodiment is (units by weight):
Its preparation method is as follows:
(1), get the water of 80% formula ratio, the wetting agent of formula ratio and the butyl glycol ether of formula ratio, under 600 rev/mins condition, stirred 10 minutes, get premix;
(2), keep the rotating speed of step (1) constant, the acrylic acid modified fluorine carbon emulsion, Tinuvin 1130 ultraviolet absorbers, Tinuvin 292 photostabilizers and the organic silicon hydrophobic agent that add formula ratio successively in step (1) the gained premix, rotating speed is risen to 2000 rev/mins, continue to stir high speed dispersion 1 hour;
(3), rotating speed transfers to 600 rev/mins, to through adding AMP-95 and remaining water in the mixed solution of step (2), adjusts viscosity to 60～80 second/Zhan2# cup, and continues to stir 10 minutes with froth breaking at a slow speed under 300～400 rev/mins rotating speed;
(4), with 50 micrometer nylon filter bags step (3) gained mixed solution is filtered, filtrate is second component of the anticorrosion frost protection coating of present embodiment.
Above-mentioned prepared coating is coated on the steel plate galvanized, and step is as follows:
(1), get the steel plate galvanized of 1mm * 75mm * 150mm, with Virahol (IPA) with its surperficial wiped clean;
(2), adopt the aerial spraying construction, make 30～50 microns of undercoat builds, 10～30 microns of finishing coat builds;
(3) the normal temperature seasoning is more than 7 days.
Prepared filming carried out performance test, and the result is as follows:
Surface drying time: 15 minutes
Pencil hardness: HB
Sticking power (GB/T 9286-98): 0 grade
The hydrophobicity test: tap water flushing film coated surface, the moisture content beading, effect that film coated surface possesses similar " lotus leaf ", the inclining experiment steel plate galvanized, the free landing of the globule, film coated surface is dry and comfortable, no moist feeling.
Embodiment 2
Prescription according to first component of the anticorrosion frost protection coating of present embodiment is (units by weight):
Its preparation method is as follows:
(1), get the water of 80% formula ratio, accurately weighing dispersion agent and wetting agent stirred 10 minutes under 600 rev/mins condition, got premix;
(2), keep the rotating speed of step (1) constant, Dehydran 1293 defoamers that add various powders (being titanium dioxide, talcum powder, carbon black, magnesium aluminum silicate, aerosil, ammonium benzoate, zinc phosphate rust-preventive pigment, the aluminium triphosphate rust-stabilising pigment of formula ratio) and 70% formula ratio successively in step (1) the gained premix, rotating speed is risen to 2000 rev/mins then, continue to stir high speed dispersion 20 minutes;
(3), will be transferred in the shredder through the mixed solution of step (2), and be ground to that the solid particulate fineness is less than or equal to 30 microns in the mixed solution;
(4), with 600 rev/mins rotating speed step (3) gained mixed solution is stirred, and add vinylchlorid modified acrylic acid emulsion, DMEA, Texanol, high-molecular chelating agent and remaining Dehydran 1293 defoamers of formula ratio successively in this mixed solution, adjust viscosity of mixed liquid to 60～80 second/Zhan2# cup with remaining water, and under 300～400 rev/mins rotating speed, continue to stir 10 minutes with froth breaking at a slow speed;
(5), with 50 micrometer nylon filter bags step (4) gained mixed solution is filtered, filtrate is the described coating that is used to form undercoat.
Prescription according to second component of the anticorrosion frost protection coating of present embodiment is (units by weight):
Its preparation method is as follows:
(1), get the water of 80% formula ratio, the Surfynol 104BC wetting agent of formula ratio and the dipropylene glycol methyl ether of formula ratio, under 600 rev/mins condition, stirred 10 minutes, get premix;
(2), keep the rotating speed of step (1) constant, the acrylic acid modified fluorine carbon emulsion, Tinuvin 1130 ultraviolet absorbers, Tinuvin 292 photostabilizers and the organic silicon hydrophobic agent that add formula ratio successively in step (1) the gained premix, rotating speed is risen to 2000 rev/mins, continue to stir high speed dispersion 1 hour;
(3), rotating speed transfers to 600 rev/mins, to through adding DMEA and remaining water in the mixed solution of step (2), adjusts viscosity to 60～80 second/Zhan2# cup, and continues to stir 10 minutes with froth breaking at a slow speed under 300～400 rev/mins rotating speed;
(4), with 50 micrometer nylon filter bags step (3) gained mixed solution is filtered, filtrate is the described coating that is used to form finishing coat.
Above-mentioned prepared coating is coated on the steel plate galvanized, and step is as follows:
(1), get the steel plate galvanized of 1mm * 75mm * 150mm, with Virahol (IPA) with its surperficial wiped clean;
(2), adopt the aerial spraying construction, make 30～50 microns of undercoat builds, 10～30 microns of finishing coat builds;
(3) the normal temperature seasoning is more than 7 days.
Prepared filming carried out performance test, and the result is as follows:
Surface drying time: 15 minutes
Pencil hardness: HB
Sticking power (GB/T 9286-98): 0 grade
The hydrophobicity test: tap water flushing film coated surface, the moisture content beading, effect that film coated surface possesses similar " lotus leaf ", the inclining experiment steel plate galvanized, the free landing of the globule, film coated surface is dry and comfortable, no moist feeling.
More than the present invention has been done detailed description; its purpose is to allow the personage that is familiar with this art can understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; the equivalence that all spirit according to the present invention are done changes or modifies, and all should be encompassed in protection scope of the present invention.
Claims (4)
1. anticorrosion frost protection coating that is used for steel construction, first component and second component that comprise independent packaging, wherein first component is used for being coated in the steel construction surface to form undercoat, second component is used for being coated in described undercoat surface to form finishing coat, it is characterized in that: by weight percentage
Described first component is mixed by following component: vinylchlorid modified polyacrylic acid emulsion 30%～50%, titanium dioxide 15%～25%, talcum powder 5%～10%, carbon black 0.1%～0.5%, magnesium aluminum silicate 0.2%～0.5%, dispersion agent 0.5%～1.5%, wetting agent 0.1%～0.5%, anti-settling agent 0.1%～3%, the agent 0.1%～0.5% of anti-sudden strain of a muscle rust, pH regulator agent 0.5%～1.5%, film coalescence aid 1%～3%, high-molecular chelating agent 1%～5%, zinc phosphate rust-preventive pigment 3%～5%, aluminium triphosphate rust-stabilising pigment 2%～3%, defoamer 0.2%～0.5% and water 15%～25%;
Described second component is mixed by following component: acrylic acid modified fluorine carbon emulsion 70%～80%, wetting agent 0.1%～0.5%, film coalescence aid 1%～3%, pH regulator agent 0.5%～1.5%, benzotriazole category ultraviolet absorbers 0.5%～1.5%, hindered amine light stabilizer 0.5%～1.5%, organic silicon hydrophobic agent 1%～5% and water 10%～25%;
Described wetting agent is the TRITON X-405 wetting agent of DOW company production or the Surfynol104BC wetting agent of U.S. aerification chemical product company limited production; Described anti-settling agent is one or more the combination in wilkinite, aerosil and the oxidized polyethlene wax; The agent of described anti-sudden strain of a muscle rust is ammonium benzoate or Sodium Nitrite; Described pH regulator agent is one or more the combination in dimethylethanolamine, 2-amino-2-methyl-1-propanol and the 1-Yi Bingchunan; Described film coalescence aid is lauryl alcohol ester, 2,2, the combination of one or more in 4-trimethylammonium-1,3 pentanediol mono isobutyrate, butyl glycol ether, dipropylene glycol methyl ether and the dipropylene glycol butyl ether;
Described dispersion agent is the macromolecule dispersing agent that has the pigment affinity groups; Contain the oxime structure in the molecular structure of described high-molecular chelating agent,
Described first component prepares by the following method:
(1), get the water of 80% formula ratio, the dispersion agent of formula ratio and the wetting agent of formula ratio, under 500～700 rev/mins condition, stirred 8～12 minutes, get premix;
(2), keep the rotating speed of step (1) constant, the titanium dioxide, talcum powder, carbon black, magnesium aluminum silicate, anti-settling agent, the anti-defoamer that dodges rust agent, zinc phosphate rust-preventive pigment, aluminium triphosphate rust-stabilising pigment and 60%～70% formula ratio that add formula ratio successively in step (1) the gained premix, rotating speed is risen to 1800～2200 rev/mins then, continue to stir 18～22 minutes;
(3), will be transferred in the shredder through the mixed solution of step (2), and be ground to that the solid particulate fineness is less than or equal to 30 microns in the mixed solution;
(4), with 600 rev/mins rotating speed the mixed solution through step (3) is stirred, and add vinylchlorid modified acrylic acid emulsion, pH regulator agent, film coalescence aid, high-molecular chelating agent and the remaining defoamer of formula ratio successively in this mixed solution, adjust viscosity of mixed liquid to 60～80 second/Zhan2# cup with remaining water, and under 300～400 rev/mins rotating speed, continue to stir 8～12 minutes;
(5), be that 50 microns filter bag filters step (4) gained mixed solution with the aperture, filtrate is first component of described water-repellent preservation frost protection coating;
Described second component prepares by the following method:
(1), get the water of 80% formula ratio, the wetting agent of formula ratio and the film coalescence aid of formula ratio, under 500～700 rev/mins condition, stirred 8～12 minutes, get premix;
(2), keep the rotating speed of step (1) constant, the acrylic acid modified fluorine carbon emulsion, benzotriazole category ultraviolet absorbers, hindered amine light stabilizer and the organic silicon hydrophobic agent that add formula ratio successively in step (1) the gained premix, rotating speed is risen to 2000 rev/mins, continue to stir 1 hour;
(3), rotating speed transfers to 600 rev/mins, to through adding pH regulator agent and remaining water in the mixed solution of step (2), adjust viscosity to 60～80 second/Zhan2# cup, and under 300～400 rev/mins rotating speed, continue to stir 8～12 minutes;
(4), be that 50 microns filter bag filters step (3) gained mixed solution with the aperture, filtrate is second component of described water-repellent preservation frost protection coating.
2. anticorrosion frost protection coating according to claim 1, it is characterized in that: described defoamer is organosilicon, polyethers or aliphatic hydrocarbon compound.
3. the preparation method of an anticorrosion frost protection coating as claimed in claim 1 is characterized in that:
The preparation method of described first component is as follows:
(1), get the water of 80% formula ratio, the dispersion agent of formula ratio and the wetting agent of formula ratio, under 500～700 rev/mins condition, stirred 8～12 minutes, get premix;
(2), keep the rotating speed of step (1) constant, the titanium dioxide, talcum powder, carbon black, magnesium aluminum silicate, anti-settling agent, the anti-defoamer that dodges rust agent, zinc phosphate rust-preventive pigment, aluminium triphosphate rust-stabilising pigment and 60%～70% formula ratio that add formula ratio successively in step (1) the gained premix, rotating speed is risen to 1800～2200 rev/mins then, continue to stir 18～22 minutes;
(3), will be transferred in the shredder through the mixed solution of step (2), and be ground to that the solid particulate fineness is less than or equal to 30 microns in the mixed solution;
(4), with 600 rev/mins rotating speed the mixed solution through step (3) is stirred, and add vinylchlorid modified acrylic acid emulsion, pH regulator agent, film coalescence aid, high-molecular chelating agent and the remaining defoamer of formula ratio successively in this mixed solution, adjust viscosity of mixed liquid to 60～80 second/Zhan2# cup with remaining water, and under 300～400 rev/mins rotating speed, continue to stir 8～12 minutes;
(5), be that 50 microns filter bag filters step (4) gained mixed solution with the aperture, filtrate is first component of described water-repellent preservation frost protection coating;
The preparation method of described second component is as follows:
(1), get the water of 80% formula ratio, the wetting agent of formula ratio and the film coalescence aid of formula ratio, under 500～700 rev/mins condition, stirred 8～12 minutes, get premix;
(2), keep the rotating speed of step (1) constant, the acrylic acid modified fluorine carbon emulsion, benzotriazole category ultraviolet absorbers, hindered amine light stabilizer and the organic silicon hydrophobic agent that add formula ratio successively in step (1) the gained premix, rotating speed is risen to 2000 rev/mins, continue to stir 1 hour;
(3), rotating speed transfers to 600 rev/mins, to through adding pH regulator agent and remaining water in the mixed solution of step (2), adjust viscosity to 60～80 second/Zhan2# cup, and under 300～400 rev/mins rotating speed, continue to stir 8～12 minutes;
(4), be that 50 microns filter bag filters step (3) gained mixed solution with the aperture, filtrate is second component of described water-repellent preservation frost protection coating.
4. claim 1 or 2 application of described anticorrosion frost protection coating in steel construction.
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| CN102505575A (en) * | 2011-11-16 | 2012-06-20 | 杨国鹏 | Productive technology for waterproof and oil-proof antirust paper |
| CN102757721B (en) * | 2012-07-12 | 2015-09-23 | 上海盖特建筑技术咨询有限公司 | A kind of protective material for the protection of corrosion art steel plate |
| CN103602183A (en) * | 2013-10-22 | 2014-02-26 | 广州擎天材料科技有限公司 | Fast-curing indentation-proof water-based paint for galvanized sheet and preparation method thereof |
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| CN109054542A (en) * | 2018-08-07 | 2018-12-21 | 中山市明日涂料材料有限公司 | A kind of environment-friendly water-based anti-corrosion dual-coating and preparation method thereof applied to steel construction |
| CN110628288A (en) * | 2019-09-23 | 2019-12-31 | 成都彭州立源高分子材料有限公司 | Water-based single-component fluorocarbon paint and preparation method thereof |
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