CN113563750B - Bi-component water-based anticorrosive paint and preparation method and application thereof - Google Patents
Bi-component water-based anticorrosive paint and preparation method and application thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
The invention discloses a bi-component water-based anticorrosive paint, a preparation method and application thereof, wherein the bi-component water-based anticorrosive paint comprises a component A and a component B; the component A comprises the following components: an aqueous epoxy dispersion resin; the component B comprises a curing agent; the rotational viscosity of the component A and the rotational viscosity of the component B are not higher than 5000mPa.s (15-30 ℃, 60 r/min); the thixotropic value of the mixed component A and the component B is 2.5-4.5. The bi-component water-based anticorrosive paint is a water-based epoxy dispersion resin system, and when the rotational viscosity of the component A and the rotational viscosity of the component B are both lower than 5000mPa.s, the spraying equipment can be ensured to work normally when the spraying equipment is adopted for spraying; and the viscosity and thixotropic value control after the component A and the component B are mixed are combined, so that sagging can not occur when the thickness is 150 mu m or more.
Description
Technical Field
The invention relates to the technical field of industrial coatings and coating processes, in particular to a bi-component water-based anticorrosive coating and a preparation method and application thereof.
Background
With the development of the paint industry, painting equipment is also developed towards mechanical automation and continuity. By selecting advanced coating equipment, the coating efficiency can be improved, the coating quality is improved, the coating cost is saved, the construction environment is improved, and the labor intensity is reduced. The high-pressure plunger pump paint supply spraying equipment has the advantages of high production efficiency, high spraying speed, less paint mist during operation, good coating quality and the like, is particularly suitable for coating large areas and large parts, and is widely applied to industries such as shipbuilding, containers, steel structures, building inner and outer walls, large pipelines and the like.
The bi-component anticorrosive paint comprises main resin and a curing agent, and a three-dimensional space network structure is formed by chemical crosslinking reaction between the main resin and the curing agent to improve the density of the coating, so that a shielding layer is formed, the porosity of the coating is reduced, corrosive media such as water, oxygen, electrolyte ions and the like are effectively inhibited or prevented from permeating into the coating, the formation of a corrosion battery between a metal substrate and the corrosive media is cut off, the possibility of the corrosive media diffusing at the interface of the coating and the substrate is reduced, and the corrosion activity is effectively inhibited. However, the two components of the two-component anticorrosive coating system must be used up within a limited time after being mixed, and can be self-gelled after exceeding the time limit, so that the two components become waste products and can not be used. The limitation of the activation period brings great inconvenience to coating construction. Aiming at the inconvenience of construction caused by the limitation of the activation period of a two-component coating system, a 2K automatic blending paint supply spraying system is provided in the market to solve the problem.
With the improvement of environmental protection requirements, the solvent-based coating is greatly limited in use due to the defect of great environmental pollution. The anticorrosion paint 'oil changes water', namely, the water-based anticorrosion paint is adopted to replace solvent-based paint, which is a current trend. At present, the development of a water-based two-component anticorrosive coating system suitable for a high-pressure plunger pump paint supply 2K automatic blending system is still blank, and the current water-based two-component anticorrosive coating is not suitable for the coating equipment.
In addition, the film thickness of the paint film is a key influence factor of the anti-corrosion capability of the paint film, so that the anti-corrosion capability of the paint film can be ensured only by controlling the sprayed film thickness to meet the requirement in the coating process. However, the thicker the coating film thickness, the more likely the sagging problem will occur. Meanwhile, due to the limitations of baking conditions and energy consumption cost, the baking temperature cannot be too high, and the baking time cannot be infinitely prolonged, so that the coating film is required to achieve certain dry protective performance after a certain baking process; and the surface drying rhythm of the wet film in the construction process is also considered, so that the phenomenon that the paint mist in the later construction period is drifted to fall on the surface-dried paint film to form 'dust falling' due to the too high surface drying speed is prevented.
Therefore, how to solve the thickness problem of the water-based two-component anticorrosive paint in one-time coating, overcome the thick coating and sagging and overcome the contradiction between the surface dryness and the actual dryness of a coating film, develop the water-based two-component paint capable of being thick coated once, be applied to the coating fields of large areas, large parts and the like, and simultaneously meet the coating process requirements of a high-pressure plunger pump paint supply 2K automatic blending system, and is a work with challenging and practical significance.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a two-component water-based anticorrosive paint which has proper drying speed, and the thickness of a paint film coated at one time can reach more than 150 mu m without generating sagging problem.
Meanwhile, the invention also provides a preparation method and application of the two-component water-based anticorrosive paint.
Specifically, the invention adopts the following technical scheme:
the first aspect of the invention provides a two-component water-based anticorrosive paint, which comprises a component A and a component B;
the component A comprises an aqueous epoxy dispersion resin;
the component B comprises a curing agent;
the rotational viscosity of the component A and the rotational viscosity of the component B are not higher than 5000mPa.s (15-30 ℃, 60 r/min); the thixotropic value of the mixed component A and the component B is 2.5-4.5.
The two-component water-based anticorrosive coating according to the first aspect of the invention has at least the following beneficial effects:
the bi-component water-based anticorrosive paint is a water-based epoxy dispersion resin system, and when the rotational viscosity of the component A and the rotational viscosity of the component B are both lower than 5000mPa.s, the spraying equipment can be ensured to work normally when the spraying equipment is adopted for spraying; and the viscosity and thixotropic value control after the component A and the component B are mixed are combined, so that sagging can not occur when the thickness is 150 mu m or more.
In some embodiments of the invention, the viscosity of the component A and the viscosity of the component B are independently 1000 to 4000mPa.s (15 to 30 ℃, 60 r/min).
In some embodiments of the invention, the thixotropic value M of the A and B components after mixing1Comprises the following steps: m is not less than 31M is 4 or less, preferably 3.15 or less1<3.8, more preferably 3.2. ltoreq. M1Less than or equal to 3.5. When the thixotropic value of the coating system is close to 3.2, the anti-sagging performance of the anticorrosive coating is good, a dry film with the thickness of 150 mu m can not sag, but the thixotropic value is too high, and the leveling of a sprayed paint film is poor; meanwhile, the thixotropic value is close to more than 3.5, the dry film with the thickness of 200 mu m can not sag, and the leveling property is better.
In some embodiments of the invention, the viscosity of the component A and the component B after mixing is 5000-10000 mPa.s (15-30 ℃, 60 r/min).
In some embodiments of the invention, the viscosity of the aqueous epoxy dispersion resin is 1000 to 2000mPa.s (15 to 30 ℃ C., 60 r/min).
In some embodiments of the present invention, the aqueous epoxy dispersion resin has an epoxy equivalent weight of 250 to 700 g/Eq. When the paint film is baked and dried at low temperature, the higher the epoxy equivalent of the epoxy resin is, the slower the drying speed is; and the epoxy equivalent of the epoxy resin is too low, so that the anticorrosion effect is poor, the drying speed is high, and the fly ash is generated in the coating process due to the large size of equipment and long coating construction time when large-scale equipment is coated and the surface drying speed of paint film construction is too high. According to the invention, the epoxy equivalent of the waterborne epoxy dispersion resin is controlled to be 350-550 g/Eq, so that the coating has a high drying speed when dried at a low temperature (less than 50 ℃), and no 'fly ash' is generated when large-scale equipment is used for spraying.
In some embodiments of the invention, the aqueous epoxy dispersion resin comprises any one or more of EPlKOTE6520-WH-53A, BANCO 2060H-WH-53A.
In some embodiments of the invention, the a component comprises the following ingredients: the coating comprises water-based epoxy dispersion resin, pigment and filler, water-based auxiliary agent and water. The water-based auxiliary agent comprises at least one of a dispersing agent, a defoaming agent, a leveling agent, a wetting agent, an adhesion promoter, an anti-flash agent and an anti-settling thixotropic agent.
In some embodiments of the present invention, the component a comprises the following ingredients in parts by mass:
35-50 parts of water-based epoxy dispersion resin
35-50 parts of pigment and filler
5-10 parts of water-based auxiliary agent
10-20 parts of water.
In some embodiments of the present invention, the pigment and filler includes 10 to 12 parts of an anti-rust pigment and 25 to 35 parts of other organic and inorganic pigment and filler.
In some embodiments of the present invention, the component a comprises the following ingredients in parts by mass:
35-50 parts of water-based epoxy dispersion resin
35-50 parts of pigment and filler
0.5-2 parts of dispersant
0.5 to 1.5 portions of defoaming agent
0.1-1 part of flatting agent
0.1 to 1 portion of wetting agent
0.5-2 parts of adhesion promoter
0.1 to 1 part of an anti-flash agent
0.3-1.5 parts of anti-settling thixotropic agent
10-20 parts of water.
In some embodiments of the invention, the anti-rust pigment comprises any one or more of polymeric phosphorous acid-potassium zinc phosphate, aluminum tripolyphosphate, and ion exchange type pigments; other organic and inorganic pigments and fillers commonly used in the art can be used, such as mica iron oxide red, barium sulfate, titanium dioxide, mica powder, calcium carbonate, etc.
In some embodiments of the invention, the dispersant is a polymeric dispersant containing pigment affinic groups, the content of the pigment affinic groups in the dispersant being 40% to 50%. Preferably, the dispersant comprises any one or more of Tego757w, BYK-2091, AFCONA4560 and BOK-3864. When the dispersant is used in the thick-coating two-component water-based anticorrosive paint, the solid content of the paint can be increased, the film thickness of the coating can be increased, and the viscosity and the gloss of the coating are not influenced.
In some embodiments of the invention, the defoamer is an organic gemini dynamic wetting defoamer, such as SURFYNOL118, TEGO TWIN 4000. The coating of the invention has high coating viscosity and high film thickness, is easier to generate foaming and foam stabilization, and has difficult bubble escape in the film forming process and always remains in a paint film in the form of micro bubbles, thereby damaging the compactness of the coating and causing the reduction of the chemical resistance and the water resistance of the coating.
In some embodiments of the invention, the leveling agent is a high boiling point polyether silane mixture leveling agent, for example
SL-3037, TSP. The high-boiling-point polyether silane mixture leveling agent can improve the wetting state of a paint film, improve the leveling property and solve the problem of fly ash.
In some embodiments of the invention, the wetting agent is a polyether siloxane copolymer wetting agent, such as Tego Wet280, EASYTECH ST-1075, BYK-346, UNIQ FLOW 487U, Silok 8008. These wetting agents not only improve the wetting properties of the coating, but also do not stabilize the foam easily.
In some embodiments of the invention, the adhesion promoter comprises any one or more of a phosphate-based resin, a polyester-based resin, a silane coupling agent, such as OMG HMP, COATOSIL MP200, ADP-W450, L-2063, Tech-7205. Such adhesion promoters can improve the corrosion resistance of the epoxy coating.
In some embodiments of the invention, the anti-flash agent is an inorganic acid and amine complex mixture type anti-flash agent, such as 335A. The anti-settling thixotropic agent comprises at least one of organic bentonite and white carbon black, and preferably comprises a combination of the organic bentonite and the white carbon black. When the anti-settling thixotropic agent comprises the combination of the organic bentonite and the white carbon black, the mass ratio of the organic bentonite to the white carbon black can be adjusted according to the situation, for example, the mass ratio of the organic bentonite to the white carbon black is set to be 1: 0.5 to 1. The organic bentonite can be Bentone EW, Bentone SD-2, etc., and the white carbon black can be H20, AEROSIL R805, etc.
In some embodiments of the present invention, the curing agent has a hydrogen equivalent weight of 100 to 700 g/Eq.
In some embodiments of the invention, the curing agent is an epoxy addition type curing agent, including any one or more of aliphatic amines, aromatic, aliphatic rings, modified amines, anhydrides, low molecular weight polyamides, and latent amines, including for example BANCO 900, EPIKURE 6870. Such curing agents can provide a degree of weatherability to the coating.
In some embodiments of the invention, the b component comprises the following ingredients: curing agent, catalyst, cosolvent, anti-settling thixotropic agent and water.
In some embodiments of the invention, the component b comprises the following components in parts by mass:
50-70 parts of curing agent
1-5 parts of catalyst
5-10 parts of cosolvent
5-10 parts of thickening agent
15-30 parts of water.
In some embodiments of the invention, the catalyst is a co-reactive catalyst (latent catalyst) comprising any one or more of Accelerator 2950, DMP-30, K-54, YH 5230.
In some embodiments of the invention, the co-solvent comprises any one or more of propylene glycol methyl ether (PM), dipropylene glycol methyl ether, propylene glycol methyl ether acetate (PMA), benzyl alcohol and propylene glycol butyl ether.
In some embodiments of the present invention, the thickener in component b is a non-newtonian fluid thickener, such as one or more of a non-newtonian fluid polyacrylate-based thickener, a polyacrylamide-based thickener, a modified polyurea-based thickener, and a polyurethane-based thickener, for example AQ600, OMG 0434, and the like.
In some embodiments of the invention, the mixing volume ratio of the component A and the component B is 5-10: 1.
the second aspect of the present invention provides a preparation method of the two-component water-based anticorrosive paint, comprising the following steps: mixing the components of the component A to obtain a component A; and mixing the components of the component B to obtain the component B.
More specifically, the preparation method of the component A comprises the following steps:
(1) mixing water, a dispersing agent, a defoaming agent, an anti-settling thixotropic agent and pigment and filler in the component A, stirring and grinding to obtain water-based color paste;
(2) mixing the aqueous epoxy dispersion resin with a wetting agent, a leveling agent, an anti-flash corrosion agent and an adhesion promoter, adding the aqueous color paste, stirring and filtering to obtain a component A;
the preparation method of the component B comprises the following steps: and mixing the curing agent, the catalyst, the cosolvent, water and the thickening agent in sequence, stirring and filtering to obtain the component B.
In some embodiments of the invention, the fineness of the aqueous color paste is less than or equal to 35 μm; the fineness of the component A is more than or equal to 100 meshes; the fineness of the component B is more than or equal to 200 meshes.
In some embodiments of the invention, in the step (1), the stirring speed is 600-1000 rpm/min, and the time is 10-15 min; the grinding speed is 4000-5000 rpm/min, and the grinding time is 0.5-1.0 h. In the step (2), the stirring speed is 500-800 rpm/min, and the time is 15-30 min.
The third aspect of the invention provides an anticorrosive coating which is formed by coating the two-component water-based anticorrosive paint.
The invention also provides a preparation method of the anticorrosive coating, wherein the component A and the component B are mixed according to the weight ratio of 5-10: 1, coating the mixture on the surface of a base material, and curing to form the anticorrosive coating.
The curing temperature is 35-45 ℃, and the curing time is 25-55 min.
The thickness of the wet film formed after coating and before curing is 350-600 mu m, and the thickness of the dry film formed after curing is 150-200 mu m. The surface drying time of the wet film is 0.5-1.5 h.
In some embodiments of the present invention, the coating method includes any one of roll coating, spray coating and spin coating, preferably spray coating, and more preferably spray coating using a dual-line high-pressure spray plunger pump, an airless/mixed air spray gun, a high-pressure plunger pump paint supply 2K automatic blending system, and other spray coating equipment.
In some embodiments of the invention, the substrate comprises a metal substrate, a plastic substrate, a wood substrate.
Compared with the prior art, the invention has the following beneficial effects:
the invention adopts the waterborne epoxy dispersion resin and the water separating amine addition compound type curing agent as the main film forming materials of the component A and the component B, screens the organic geminal dynamic defoaming agent and the polyether siloxane copolymer as the wetting agent, uses the high boiling point polyether silane mixture as the wetting leveling agent and uses the organic bentonite to match with the thickening thixotropic system of the polyether polyurethane to realize the application of the waterborne two-component anticorrosive paint in the two-pipeline high-pressure spraying system, avoids the limitation of the activation period of the two-component paint on the construction, realizes the one-time coating of the dry film with the thickness of 150 mu m and above, and simultaneously solves the problems of thick coating sagging and thick coating popping under the thickness of the coating. Meanwhile, the problems of production safety, construction environmental protection, health and the like caused by the coating process of the traditional solvent-based coating are avoided.
Drawings
FIG. 1 is a diagram of a high-pressure plunger pump paint supply 2K automatic blending spraying system;
FIG. 2 is a real diagram of one-time spraying of wet films of different thicknesses using the two-component aqueous anticorrosive coating of example 1.
Detailed Description
The technical solution of the present invention is further described below with reference to specific examples. The starting materials used in the following examples, unless otherwise specified, are available from conventional commercial sources; the processes used, unless otherwise specified, are conventional in the art.
Example 1
A two-component water-based anticorrosive paint comprises the following preparation raw materials in parts by mass:
TABLE 1 preparation of two-component aqueous anticorrosive paint
The preparation method of the two-component water-based anticorrosive paint comprises the following steps:
(1) all deionized water, dispersant, defoamer, anti-settling thixotropic agent and all pigment and filler are pre-dispersed and stirred uniformly, and the mixture is moved to a sand mill to be ground to obtain the water-based color paste with the fineness of less than or equal to 35 mu m.
(2) And (2) adding the aqueous epoxy dispersion resin into a stirring tank, then sequentially adding a wetting agent, a flatting agent, an anti-flash corrosion agent and an adhesion force enhancer under the stirring condition, finally adding the aqueous color paste obtained in the step (1), uniformly stirring, and filtering by using a 100-mesh filter screen to obtain the component A.
(3) And sequentially mixing and stirring the curing agent, the catalyst, the environment-friendly cosolvent, the deionized water and the thickening agent uniformly, and filtering the mixture by using a 200-mesh filter screen after stirring to obtain the component B.
Example 2
A two-component water-based anticorrosive paint comprises the following preparation raw materials in parts by mass:
TABLE 2 preparation of two-component aqueous anticorrosive paint
The preparation method of the two-component water-based anticorrosive paint of the embodiment is the same as that of embodiment 1.
The viscosity of the component A and the component B of the two-component water-based anticorrosive paint and the viscosity of the two components after being mixed in proportion are tested, a high-pressure plunger pump paint supply 2K automatic blending spraying system (as shown in figure 1, a main agent pump is used for feeding the component A, a component B pump is used for feeding the component B, and a cleaning pump is used for cleaning the spraying system) is adopted for carrying out one-time coating on the surface of the aluminum substrate, and the performance of a paint film is tested, and the results are shown in the following table 3.
Meanwhile, two commercially available two-component water-based anticorrosive coatings (a commercially available product 1 and a commercially available product 2) are adopted for comparison, and the viscosity of the coating system is properly adjusted and improved.
TABLE 3 Performance test results
Note: sag film thickness is the maximum wet film thickness at which a tilted template will not have a tendency to flow during drying.
The test result shows that the two-component water-based anticorrosive paint of the embodiments 1 and 2 can adapt to the normal work of a high-pressure plunger pump paint supply 2K automatic blending spraying system, and the thickness of a dry film after one-time coating can reach 150-192 microns. In comparative example 1, the viscosity of the component A is too high, which causes the working of a high-pressure plunger pump for feeding the main agent to be laborious, and the high-pressure plunger pump cannot work normally in the later period, and the thickness of the dry film of the primary coating after the component A and the component B are mixed is only 100 micrometers and cannot reach the thickness of the dry film of 150 micrometers. Although the viscosity of the component A and the component B in the comparative example 2 is suitable for a high-pressure plunger pump paint supply 2K automatic blending spraying system, the thickness of a dry film of 150 mu m cannot be achieved by one-time coating; when the dry film thickness of comparative example 2 exceeded 80 μm, the corresponding wet film thickness exceeded 275 μm and sagging problems began to occur. And the initial water resistance and the initial hardness of the comparative example 1 and the comparative example 2 are obviously lower than those of the example 1 and the example 2 after the line is cured for 24 hours under the conditions that the curing temperature is 45 ℃ and the curing time is 35-55 min.
A physical diagram of wet films with different thicknesses sprayed at one time by using the two-component water-based anticorrosive coating of example 1 is shown in FIG. 2. It is apparent from FIG. 2 that no sagging phenomenon occurs at wet film thicknesses below 425 μm.
Example 3
The two-component water-based anticorrosive paint is prepared from water-based epoxy dispersion resins with different epoxy equivalent weights, a high-pressure plunger pump paint supply 2K automatic blending spraying system is adopted to perform one-time coating on the surface of a carbon steel substrate, and the performance of a paint film is tested after baking (45 ℃ multiplied by 40min), and the results are shown in the following table 4.
TABLE 4 Effect of different aqueous epoxy dispersion resins on the paint film
In table 4, the main differences of numbers 1 to 5 are that the waterborne epoxy dispersion resins are different, and the specific raw material compositions are as follows:
number 1:
the component A comprises: aqueous epoxy dispersion resin 6520: 42 parts, dispersant Tego757 w: 1.5 parts of environment-friendly antirust pigment zinc orthophosphate ZMP: 10 parts, iron oxide red 190: 10 parts, barium sulfate: 18 parts of a mixture; defoaming agent 118: 1.0 part, anti-settling thixotropic agent H20+ SD-2: 0.4+0.3 parts, anti-flash rust agent 335A: 0.8 parts, wetting agent TEGO 280: 0.3 part of leveling agent
-SL-3037: 0.5 part of adhesion promoter HMP: 1.0 part and 14.2 parts of deionized water;
b, component B: curing agent 6870: 68 parts of latent catalyst 2950+ DMP-30: 1.0+2.0 parts, cosolvent PMA: 5.0 parts of a thickening agent AQ 600: 8.0 part, deionized water: and 16 parts.
Sequence number 2:
the component A comprises: aqueous epoxy dispersion resin 3EE 102W: 42 parts, dispersant Tego757 w: 1.5 parts of environment-friendly antirust pigment zinc orthophosphate ZMP: 10 parts, iron oxide red 190: 10 parts, barium sulfate: 18 parts of a mixture; defoaming agent 118: 1.0 part, anti-settling thixotropic agent H20+ SD-2: 0.4+0.3 parts, anti-flash rust agent 335A: 0.8 parts, wetting agent TEGO 280: 0.3 part of leveling agent
-SL-3037: 0.5 part, adhesion promoter HMP: 1.0 part and 14.2 parts of deionized water;
b, component B: curing agent 3EC 154W: 76 parts of latent catalyst K54: 3.0 parts, cosolvent PMA: 6.0 parts of a thickening agent AQ 600: 8.0 parts, deionized water: 7 parts.
Sequence No. 3:
the component A comprises: aqueous epoxy dispersion resin EPlKOTE 6006: 42 parts, dispersant Tego757 w: 1.5 parts of environment-friendly antirust pigment zinc orthophosphate ZMP: 10 parts, iron oxide red 190: 10 parts, barium sulfate: 18 parts of a mixture; defoaming agent 118: 1.0 part, anti-settling thixotropic agent H20+ SD-2: 0.4+0.3 parts, anti-flash rust agent 335A: 0.8 parts, wetting agent TEGO 280: 0.3 part of leveling agent
-SL-3037: 0.5 part, adhesion promoter HMP: 1.0 part and 14.2 parts of deionized water;
b, component B: curing agent 6870: 50 parts of latent catalyst 2950+ DMP-30: 2.0+3.0 parts, cosolvent PMA: 8.0 parts of a thickening agent AQ 600: 10 parts of deionized water: 27 parts of (a).
Number 4:
the component A comprises: aqueous epoxy dispersion resin 387: 42 parts, dispersant Tego757 w: 1.5 parts of environment-friendly antirust pigment zinc orthophosphate ZMP: 10 parts, iron oxide red 190: 10 parts, barium sulfate: 18 parts of a mixture; defoaming agent 118: 1.0 part, anti-settling thixotropic agent H20+ SD-2: 0.4+0.3 parts, anti-flash rust agent 335A: 0.8 parts, wetting agent TEGO 280: 0.3 part of leveling agent
-SL-3037: 0.5 part, adhesion promoter HMP: 1.0 part and 14.2 parts of deionized water;
b, component B: curing agent 623W: 50 parts of latent catalyst 2950+ DMP-30: 2.0+3.0 parts, cosolvent PMA: 8.0 parts, thickener OMG 0434: 10 parts, deionized water: 27 parts of (a).
Number 5:
the component A comprises: aqueous epoxy dispersion resin BANCO 2060H: 42 parts, dispersant Tego757 w: 1.5 parts of environment-friendly antirust pigment zinc orthophosphate ZMP: 10 parts, iron oxide red 190: 10 parts, barium sulfate: 18 parts of a mixture; defoaming agent 118: 1.0 part, anti-settling thixotropic agent H20+ SD-2: 0.4+0.3 parts, anti-flash rust agent 335A: 0.8 parts, wetting agent TEGO 280:0.3 part of leveling agent
-SL-3037: 0.5 part of adhesion promoter HMP: 1.0 part and 14.2 parts of deionized water;
b, component B: curing agent BANCO 900: 55 parts, a latent catalyst 2950+ DMP-30: 2.0+3.0 parts, cosolvent PMA: 8.0 parts, thickener OMG 0434: 10 parts of deionized water: 22 parts of.
The volume ratio of the component A to the component B in the bi-component water-based anticorrosive paint with the serial number of 1-5 is 8.8: 1.0.
table 4 reflects that, when the paint film is baked at a lower temperature, the higher the epoxy equivalent of the aqueous epoxy dispersion resin is, the slower the drying speed is; when the epoxy equivalent of the waterborne epoxy dispersion resin is too low, the anticorrosion effect is poor, the drying speed of the epoxy resin is high, and fly ash is generated in the coating process due to the fact that the equipment is large in size and long in coating construction time and the surface drying speed of paint film construction is too high when large-scale equipment is coated; the waterborne epoxy dispersion resin has good comprehensive performance within the range of epoxy equivalent of 350-550 g/Eq. The reason that different epoxy resins are adopted to cause great change of paint film performance is probably that the viscosity of the epoxy resins and the responsiveness of the epoxy resins to the thickening agent are greatly different, thick coating is easy to sag, and particularly when double-pipeline spraying equipment is adopted for spraying, the viscosity of the component A and the component B is low and suitable for construction, and the sag prevention after mixing is required to be improved, so that the thick coating can be performed, the requirement is high, and not all the epoxy resins are suitable for preparing thick coating paint.
Example 4
The two-component water-based anticorrosive paint is prepared by adopting different curing agents, a high-pressure plunger pump paint supply 2K automatic blending spraying system is adopted to carry out one-time coating on the surface of an aluminum substrate, and the performance of a paint film is tested after baking (45 ℃ multiplied by 40min), and the results are shown in the following table 5.
TABLE 5 Effect of different curing Agents on the paint film
In table 5, in the raw material compositions with numbers 1 to 4, the component a is the same, and the main difference lies in that the curing agent of the component b is different, and the specific raw material compositions are respectively:
the component A comprises: aqueous epoxy dispersion resin BANCO 2060H: 42 parts, dispersant Tego757 w: 1.5 parts of environment-friendly antirust pigment zinc orthophosphate ZMP: 10 parts, iron oxide red 190: 10 parts, barium sulfate: 18 parts of a mixture; defoaming agent 118: 1.0 part, anti-settling thixotropic agent H20+ SD-2: 0.4+0.3 parts, anti-flash rust agent 335A: 0.8 parts, wetting agent TEGO 280: 0.3 part of leveling agent
-SL-3037: 0.5 part, adhesion promoter HMP: 1.0 part and 14.2 parts of deionized water;
number 1: b, component B: curing agent LH-6303T: 45 parts, a latent catalyst 2950+ DMP-30: 2.0+3.0 parts, cosolvent PMA: 10.0 parts, thickener AQ 600: 10 parts of deionized water: 30 parts of.
Sequence number 2: b, component B: curing agent BANCO 900: 55 parts, 2950 parts of latent catalyst and 30 parts of DMP (dimethyl formamide): 2.0+3.0 parts, cosolvent PMA: 8.0 parts, thickener OMG 0434: 10 parts of deionized water: 22 parts of.
Sequence No. 3: b component: curing agent Q-RIT 1075: 60 parts of latent catalyst 2950+ DMP-30: 2.0+2.0 parts, cosolvent PMA: 8.0 parts of a thickening agent AQ 600: 8 parts of deionized water: and 25 parts.
Number 4: b component: curing agent BANCO 900: 35 parts, Q-RIT 1075: 20 parts of latent catalyst 2950+ DMP-30: 2.0+2.0 parts, cosolvent PMA: 8.0 parts, thickener OMG 0434: 9 parts of deionized water: and 24 parts.
The volume ratio of the component A to the component B in the bi-component water-based anticorrosive paint with the serial number of 1-4 is 8.8: 1.0.
as can be seen from the test results in Table 5, the use of amine-based curing agents contributes to the improvement in the weatherability of the paint film.
Example 5
Preparing a component A and a component B with different viscosities, performing one-time coating on the surface of the carbon steel substrate by adopting a high-pressure plunger pump paint supply 2K automatic blending spraying system, and testing the performance of a paint film after baking (45 ℃ for 40min), wherein the results are shown in the following table 6.
TABLE 6 Effect of viscosity on paint films
In table 6, numbers 1 to 6 are different in viscosity by mainly adjusting various additives in the raw materials, and the specific raw material compositions are as follows:
number 1:
the component A comprises: aqueous epoxy dispersion resin 6520: 42 parts, dispersant Tego757 w: 1.5 parts of environment-friendly antirust pigment zinc orthophosphate ZMP: 10 parts, iron oxide red 190: 10 parts, barium sulfate: 18 parts of a mixture; defoaming agent 118: 1.0 part, anti-settling thixotropic agent H20: 0.2 part, anti-flash rust agent 335A: 0.8 parts, wetting agent TEGO 280: 0.3 part of leveling agent
-SL-3037: 0.5 part, adhesion promoter HMP: 1.0 part, deionized water: 13.5 parts, thickener 0620: 1.2 parts of;
b, component B: curing agent 6870: 68 parts of latent catalyst 2950+ DMP-30: 1.0+2.0 parts, cosolvent PMA: 5.0 parts, deionized water: and 24 parts.
Sequence number 2:
the component A comprises: aqueous epoxy dispersion resin 6520: 42 parts, dispersant Tego757 w: 1.5 parts of environment-friendly antirust pigment zinc orthophosphate ZMP: 10 parts, iron oxide red 190: 10 parts, barium sulfate: 18 parts of a mixture; defoaming agent 118: 1.0 part, anti-settling thixotropic agent SD-2: 0.5 part, anti-flash rust agent 335A: 0.8 parts, wetting agent TEGO 280: 0.3 part of leveling agent
-SL-3037: 0.5 part, adhesion promoter HMP: 1.0 part, deionized water: 13.5 parts of thickening agentAgent OMG 0630: 0.9 part;
b component: curing agent 6870: 68 parts of latent catalyst 2950+ DMP-30: 1.0+2.0 parts, cosolvent PMA: 5.0 parts, deionized water: and 24 parts.
Sequence No. 3:
the component A comprises: aqueous epoxy dispersion resin 6520: 42 parts, dispersant Tego757 w: 1.5 parts of environment-friendly antirust pigment zinc orthophosphate ZMP: 10 parts, iron oxide red 190: 10 parts, barium sulfate: 18 parts of a mixture; defoaming agent 118: 1.0 part, anti-settling thixotropic agent H20+ SD-2: 0.4+0.3 parts, anti-flash rust agent 335A: 0.8 parts, wetting agent TEGO 280: 0.3 part of leveling agent
-SL-3037: 0.5 part, adhesion promoter HMP: 1.0 part and 14.2 parts of deionized water;
b, component B: curing agent 6870: 68 parts of latent catalyst 2950+ DMP-30: 1.0+2.0 parts, cosolvent PMA: 6.0 parts of a thickening agent AQ 600: 5.0 parts, deionized water: and 18 parts.
Number 4:
the component A comprises: aqueous epoxy dispersion resin 6520: 42 parts, dispersant Tego757 w: 1.5 parts of environment-friendly antirust pigment zinc orthophosphate ZMP: 10 parts, iron oxide red 190: 10 parts, barium sulfate: 18 parts of a mixture; defoaming agent 118: 1.0 part, anti-settling thixotropic agent H20: 0.3 part, anti-flash rust agent 335A: 0.8 parts, wetting agent TEGO 280: 0.3 part of leveling agent
-SL-3037: 0.5 part, adhesion promoter HMP: 1.0 part, 13.5 parts of deionized water, a thickener HV 30: 1.2 parts;
b, component B: curing agent 6870: 68 parts of latent catalyst 2950+ DMP-30: 1.0+2.0 parts, cosolvent PMA: 7.0 parts, deionized water: 22 parts of.
Number 5:
the component A comprises: aqueous epoxy dispersion resin 6520: 42 parts, dispersant Tego757 w: 1.5 parts of environment-friendly antirust pigment zinc orthophosphate ZMP: 10 parts, iron oxide red 190: 10 parts, barium sulfate: 18 parts of a mixture; defoaming agent 118: 1.0 part, anti-settling thixotropic agent H20+ SD-2: 0.4 part and 0.3 part of,flash rust preventive 335A: 0.8 parts, wetting agent TEGO 280: 0.3 part of leveling agent
-SL-3037: 0.5 part, adhesion promoter HMP: 1.0 part and 14.2 parts of deionized water;
b, component B: curing agent 6870: 68 parts of latent catalyst 2950+ DMP-30: 1.0+2.0 parts, cosolvent PMA: 5.0 parts of a thickening agent AQ 600: 8.0 parts, deionized water: 16 parts of.
Number 6:
the component A comprises: aqueous epoxy dispersion resin 6520: 42 parts, dispersant Tego757 w: 1.5 parts of environment-friendly antirust pigment zinc orthophosphate ZMP: 10 parts, iron oxide red 190: 10 parts, barium sulfate: 18 parts of a binder; defoaming agent 118: 1.0 part, anti-settling thixotropic agent H20+ SD-2: 0.4+0.3 parts, anti-flash rust agent 335A: 0.8 parts, wetting agent TEGO 280: 0.3 part of leveling agent
-SL-3037: 0.5 part of adhesion promoter HMP: 1.0 part and 14.2 parts of deionized water;
b, component B: curing agent 6870: 68 parts of latent catalyst 2950+ DMP-30: 1.0+2.0 parts, cosolvent PMA: 5.0 parts, thickener OMG 0630: 8.0 part, deionized water: 16 parts of.
The volume ratio of the component A to the component B in the bi-component water-based anticorrosive paint with the serial number of 1-6 is 8.8: 1.0.
according to the test result of 6, when the rotational viscosities of the first component and the second component of the water-based two-component quick-drying anticorrosive coating are respectively lower than 5000mpa.s, the high-pressure plunger pump paint supply 2K automatic blending spraying system can normally work. When the construction thixotropic value of the whole coating system is higher than 3.2, the sprayed anticorrosive coating is better in sagging prevention, can reach 150 mu m dry film without sagging, can reach 200 mu m dry film without sagging when the thixotropic value is close to more than 3.5, is better in leveling property, but is higher in thixotropic value, and if the thixotropic value reaches 3.8, the leveling property of a sprayed paint film is poor.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (7)
1. The utility model provides a be applied to double-component waterborne anticorrosive paint of two way line high pressure spraying plunger pump, airless/gas mixing spray gun, high pressure plunger pump paint supply 2K automatic allotment system which characterized in that: the bi-component water-based anticorrosive paint comprises a component A and a component B;
the component A comprises the following components in parts by mass:
35-50 parts of water-based epoxy dispersion resin
35-50 parts of pigment and filler
0.5-2 parts of dispersant
0.5 to 1.5 portions of defoaming agent
0.1-1 part of flatting agent
0.1 to 1 portion of wetting agent
0.5-2 parts of adhesion promoter
0.1 to 1 part of an anti-flash agent
0.3-1.5 parts of anti-settling thixotropic agent
10-20 parts of water;
the component B comprises the following components in parts by mass:
50-70 parts of curing agent
1-5 parts of catalyst
5-10 parts of cosolvent
5-10 parts of thickening agent
15-30 parts of water;
the mixing volume ratio of the component A to the component B is 5-10: 1;
the epoxy equivalent of the aqueous epoxy dispersion resin is 350-550 g/Eq;
the pigment filler comprises an antirust pigment and other organic and inorganic pigment fillers;
the anti-rust pigment comprises any one or more of polymeric zinc phosphate, aluminum zinc phosphate, aluminum tripolyphosphate and ion exchange type pigments;
the dispersant is a polymer dispersant containing pigment affinity groups;
the thickener is a non-Newtonian fluid type thickener;
the antifoaming agent is SUPFYNOL118 or TEGO TWIN 4000;
the leveling agent is a high-boiling-point polyether silane mixture leveling agent;
the wetting agent is a polyether siloxane copolymer wetting agent;
the anti-settling thixotropic agent is a composition of organic bentonite and white carbon black;
the curing agent is an epoxy addition type curing agent and comprises at least one of aliphatic amine, aromatic amine, aliphatic ring, modified amine, acid anhydride, low-molecular polyamide and latent amine;
under the conditions of 15-30 ℃ and 60r/min, the rotational viscosity of the component A and the component B is not higher than 5000mPa.s, and the viscosity of the component A and the component B after mixing is 5000-10000 mPa.s; the thixotropic value of the component A and the component B after being mixed is more than or equal to 3.2 and less than or equal to M1≤3.5。
2. The two-component aqueous anticorrosive coating according to claim 1, characterized in that: under the conditions of 15-30 ℃ and 60r/min, the viscosity of the component A and the viscosity of the component B are 1000-4000 m Pa.s independently.
3. The method for preparing the two-component water-based anticorrosive paint according to any one of claims 1 to 2, characterized in that: the method comprises the following steps: mixing the components of the component A to obtain a component A; and mixing the components of the component B to obtain the component B.
4. An anti-corrosion coating characterized by: the anticorrosive coating is formed by coating the two-component water-based anticorrosive coating of any one of claims 1 to 2.
5. A preparation method of an anticorrosive coating is characterized by comprising the following steps: the two-component water-based anticorrosive coating as claimed in any one of claims 1 to 2, wherein the component A and the component B are mixed according to the weight ratio of 5-10: 1, coating the mixture on the surface of a base material, and curing to form the anticorrosive coating.
6. The method for preparing the corrosion-resistant coating according to claim 5, wherein: the curing temperature is 35-45 ℃.
7. The method for preparing the corrosion-resistant coating according to claim 6, wherein: the curing time is 25-55 min.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007046301A1 (en) * | 2005-10-20 | 2007-04-26 | Chugoku Marine Paints, Ltd. | Polyfunctional epoxy resin coating composition containing rust-preventive pigment, coating film obtained therefrom, base coated with the coating film, and method of rust prevention |
| CN102010646A (en) * | 2010-12-30 | 2011-04-13 | 中远关西涂料化工（天津）有限公司 | Low-temperature quick-drying solvent-free epoxy coating for drinking water tank and preparation method thereof |
| CN108690457A (en) * | 2018-03-15 | 2018-10-23 | 河北晨阳工贸集团有限公司 | A kind of water-based epoxy intermediate paint and preparation method thereof |
| CN110591505A (en) * | 2019-09-26 | 2019-12-20 | 中国海洋石油集团有限公司 | Thick-coating type water-based epoxy zinc-rich anticorrosive paint and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007046301A1 (en) * | 2005-10-20 | 2007-04-26 | Chugoku Marine Paints, Ltd. | Polyfunctional epoxy resin coating composition containing rust-preventive pigment, coating film obtained therefrom, base coated with the coating film, and method of rust prevention |
| CN102010646A (en) * | 2010-12-30 | 2011-04-13 | 中远关西涂料化工（天津）有限公司 | Low-temperature quick-drying solvent-free epoxy coating for drinking water tank and preparation method thereof |
| CN108690457A (en) * | 2018-03-15 | 2018-10-23 | 河北晨阳工贸集团有限公司 | A kind of water-based epoxy intermediate paint and preparation method thereof |
| CN110591505A (en) * | 2019-09-26 | 2019-12-20 | 中国海洋石油集团有限公司 | Thick-coating type water-based epoxy zinc-rich anticorrosive paint and preparation method thereof |
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