CN113045942A - Multipurpose primer-topcoat water-based paint and preparation method thereof - Google Patents
Multipurpose primer-topcoat water-based paint and preparation method thereof Download PDFInfo
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- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- 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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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- 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
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
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- 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
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/103—Anti-corrosive paints containing metal dust containing Al
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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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- C09D7/60—Additives non-macromolecular
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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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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
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- C08K2003/0812—Aluminium
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- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C08K2003/2241—Titanium dioxide
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/325—Calcium, strontium or barium phosphate
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- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
Abstract
The invention relates to a paint and a preparation method thereof, in particular to a multipurpose primer-topcoat water-based paint and a preparation method thereof, 38-52 parts of self-drying water-based acrylic emulsion, 1-2 parts of ethylene glycol monobutyl ether, 1-2 parts of dipropylene glycol methyl ether, 1-2 parts of alcohol ester, 0.2-0.7 part of dispersant, 1-3 parts of siloxane-based coupling agent, 1-3 parts of epoxy phosphate polymer, 1-3 parts of zinc molybdate modified pigment, 2-5 parts of calcium ion exchange type antirust pigment, 2-5 parts of calcium phosphate-based anti-corrosion inhibitor, 2-10 parts of siloxane modified nano mica powder, 2-6 parts of superfine talcum powder, 2-6 parts of superfine barium sulfate, 11-23 parts of titanium dioxide, 0.1-0.5 part of organic soil, 0.3-0.8 part of anti-flash rust agent and 0.2-1 part of thickener, 0.1-34 minutes of deionized water, the invention has wide application field, and the adhesive force can be measured on low surface treated steel plates, aluminum plates, galvanized plates, acrylic plates and PVC plates by grid cutting and is 0-1 grade.
Description
Technical Field
The invention relates to a coating and a preparation method thereof, in particular to a multipurpose primer-topcoat water-based coating and a preparation method thereof.
Technical Field
The water-based primer-topcoat paint is a water-based paint which combines a primer and a topcoat paint into a whole, and the water-based primer-topcoat paint is required to have the performance of both the primer and the topcoat paint. The primer-topcoat paint has the characteristics of the primer and the topcoat, so that the coating process flow of the water-based primer-topcoat paint is greatly simplified, the energy consumption of the coating process and the coating construction cost are saved, the economic benefit is improved, and the problem of coating quality caused by the fact that the primer and the topcoat are not matched is avoided.
The patent number CN 106118295A discloses a water-based primer-topcoat rust-containing anticorrosive paint and a preparation method thereof, and the anticorrosive paint comprises the following components in percentage by mass: 40-70% of water-based acrylic emulsion, 1-5% of wetting dispersant, 0.1-0.5% of defoaming agent, 0.4-0.5% of preservative, 0.5-2% of anti-flash rust agent, 5-10% of conversion agent, 1-5% of conversion accelerator, 2-12% of film-forming additive, 20-30% of pigment and filler, 0.5-0.8% of thickening agent, 8-15% of deionized water, 0.2-0.5% of defoaming agent, 0.2-0.5% of flatting agent and the like.
The patent No. CN 106634382A discloses an environment-friendly anticorrosive quick-drying primer-topcoat air-drying paint and a preparation method thereof. The self-drying paint takes acrylic acid modified epoxy ester resin and styrene modified acrylic resin as film forming substances together, contains a calcium and manganese naphthenate composite drier consisting of calcium naphthenate, manganese naphthenate and isobutanol, and is added with a plurality of auxiliaries and pigments and fillers to achieve an excellent quick-drying effect.
Disclosure of Invention
The invention discloses a multipurpose primer-topcoat water-based paint and a preparation method thereof, the paint has super strong adhesive force, and the main chain of an epoxy phosphate polymer added in a system contains a large amount of groups capable of being bonded with the surface of metal, so that the adhesive force of the paint to the metal substrate is improved; the invention has wider application field, and the adhesive force can be measured on low-surface treated steel plates, aluminum plates, galvanized plates, acrylic plates and PVC plates by cutting grids to be 0-1 grade; the paint is dry to touch after being sprayed for 0.5 hour at room temperature, the salt spray resistance can reach 500 hours (dry film is 40-50 um), the adhesive force is 0-1 grade when being checked, the water resistance is more than 10 days, and the adhesive force is 0-1 grade when being checked.
A multipurpose primer-topcoat water-based paint comprises the following components: 38-52 parts of self-drying water-based acrylic emulsion, 1-2 parts of ethylene glycol monobutyl ether, 1-2 parts of dipropylene glycol methyl ether, twelve 1-2 parts of alcohol ester, 0.2-0.7 part of dispersant, 1-3 parts of siloxane coupling agent, 1-3 parts of epoxy phosphate polymer, 1-3 parts of zinc molybdate modified pigment, 2-5 parts of calcium ion exchange type antirust pigment, 2-5 parts of calcium phosphate-based corrosion inhibitor, 2-10 parts of siloxane modified nano mica powder, 2-6 parts of superfine talcum powder, 2-6 parts of superfine barium sulfate, 11-23 parts of titanium dioxide, 0.1-0.5 part of organic soil, 0.3-0.8 part of flash rust inhibitor, 0.2-1 part of thickening agent and 0.1-34 parts of deionized water.
A multipurpose primer-topcoat water-based paint comprises the following components: 38-45 parts of self-drying water-based acrylic emulsion, 1.5-2 parts of ethylene glycol monobutyl ether, 1-1.5 parts of dipropylene glycol methyl ether, 1-1.5 parts of alcohol ester dodeca, 0.3-0.5 part of dispersing agent, 1.2-1.8 parts of siloxane-based coupling agent, 1.8-2.2 parts of epoxy phosphate polymer, 2.6-3 parts of zinc molybdate modified pigment, 2-3 parts of calcium ion exchange type antirust pigment, 2-3 parts of calcium phosphate-based anti-corrosion inhibitor, 5-8 parts of siloxane modified nano mica powder, 2-4 parts of superfine talcum powder, 2-3.5 parts of superfine barium sulfate, 15-20 parts of titanium dioxide, 0.1-0.3 part of organic soil, 0.3-0.5 part of anti-flash agent, 0.2-0.6 part of thickening agent and 0.1-38 parts of deionized water.
Furthermore, the calcium ion exchange type antirust pigment is a type of antirust pigment which is obtained by taking specially synthesized silicon as a main body and adding calcium and magnesium species to exchange with silicon hydroxyl on the surface of silicon dioxide in the synthesis process. Such rust inhibitive pigments do not contain any heavy metals and phosphorus species.
Further, the ratio of the calcium ion exchange type antirust pigment to the calcium phosphate-based anticorrosion inhibitor is 1: 0.8-1.2.
A multipurpose primer-topcoat water-based paint comprises the following components: 43.5 parts of self-drying water-based acrylic emulsion, 2 parts of ethylene glycol butyl ether, 1.5 parts of dipropylene glycol methyl ether, twelve 1.5 parts of alcohol ester, 0.4 part of dispersing agent, 1.5 parts of siloxane-based coupling agent, 2 parts of epoxy phosphate polymer, 3 parts of zinc molybdate modified pigment, 3 parts of calcium ion exchange type antirust pigment, 3 parts of calcium phosphate-based anticorrosion inhibitor, 7 parts of siloxane-modified nano mica powder, 3 parts of superfine talcum powder, 3 parts of superfine barium sulfate, 3.5 parts of titanium dioxide, 0.2 part of organic soil, 0.4 part of anti-rust agent, 0.5 part of thickening agent and 7 parts of deionized water.
Furthermore, the mesh number of the superfine talcum powder is more than or equal to 600 mu.
Furthermore, the mesh number of the superfine barium sulfate is more than or equal to 600 mu.
Further: the multipurpose primer-topcoat water-based paint is applied to the fields of steel plates, aluminum plates, galvanized plates, acrylic plates, PVC and the like.
A multipurpose primer-topcoat water-based paint is prepared by the following steps:
s1, sequentially adding a dispersant, a zinc molybdate modified pigment, a silicon-based calcium ion exchange type antirust pigment, a calcium phosphate-based anticorrosion inhibitor, siloxane modified nano mica powder, superfine talcum powder, superfine barium sulfate, titanium dioxide, organic soil and an anti-flash embroidery agent according to the formula ratio, pre-dispersing at 900-1200 rpm, grinding to the fineness of below 15 mu m by using a horizontal sand mill, controlling the temperature to be 40-50 ℃ and controlling the flow to be 10-15L/min to obtain slurry;
s2, sequentially adding the water-based acrylic emulsion, the ethylene glycol butyl ether, the dipropylene glycol methyl ether and the alcohol ester twelve according to the formula ratio, and stirring for 5-10 minutes at the speed of 300-600 r/min;
s3, adding the silicone-based coupling agent with the formula amount into S2, stirring for 5-10 minutes at 600 rpm;
s4, adding the epoxy phosphate polymer with the formula amount into S3, stirring for 20-30 minutes at 500 revolutions per part;
s5, adding S1 slurry into S4, stirring for 30 minutes at 600 revolutions per minute, and adjusting the viscosity by using a thickening agent and deionized water to obtain the bottom-surface integrated self-drying water-based paint.
Further, in the preparation method of the multipurpose primer-topcoat water-based paint, the grinding process in the step S1 is as follows: the temperature is 40-50 ℃, and the flow rate is 10-15L/min.
Furthermore, in the preparation method of the multipurpose primer-topcoat water-based paint, the fineness of the grinding slurry in the grinding process in S1 is less than or equal to 15 um.
Technical effects of the invention
The epoxy phosphate ester polymer has super strong adhesive force, is favorable for having a large number of groups capable of being bonded with the surface of metal by adopting the epoxy phosphate ester polymer as an adhesive force promoter, and improves the adhesive force of the coating to the metal base material; in addition, under the main body of the self-drying water-based acrylic emulsion, the good adhesive force on steel plates, aluminum plates, galvanized plates, acrylic plates and PVC plates with low surface treatment can be realized, and the adhesive force level is 0-1 level when the adhesive force is measured by dividing grids.
According to the invention, the silicon-based calcium ion exchange type antirust pigment is dispersed in a paint film and can adsorb attack ions, so that the generation of ferrous or ferric ions of an anode is delayed, and good corrosion resistance is realized; in addition, the antirust pigment can be dissociated under alkaline conditions to release silicate ions; when the cathode reaction occurs and the regional alkalinity rises, hydroxide ions are consumed to release silicate ions, the silicate ions and calcium ions, ferrous ions or iron ions generate insoluble silicate to cover the surfaces of the cathode and the anode to form a passivation protective film, so that the generation of the cathode and anode electrode reaction is blocked, the antirust effect is achieved from the physical layer and the chemical layer, and the salt spray resistance can reach 500 hours (dry film 40-50 um).
The calcium phosphate-based corrosion inhibitor is adopted, can generate synergistic effect with other antirust pigments in the aspects of ion removal and passivation, can reduce the water permeation, improves the water resistance, realizes 10d water resistance, has the adhesive force of grade 1 (GB/T5209, GB/T9286) after water resistance, and is not easy to foam.
The paint is dry to touch after being sprayed for 0.5 hour at room temperature, the salt spray resistance can reach 500 hours (dry film is 40-50 um), the adhesive force is 0-1 grade when being checked, the water resistance is more than 10 days, and the adhesive force is 0-1 grade when being checked.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Example 1
A multipurpose primer-topcoat water-based paint is tested by changing the types of anti-rust pigments, and has the serial numbers of No. 1, No. 2, No. 3 and No. 4, the specific formula is shown in Table 1, and the preparation method comprises the following steps:
s1, sequentially adding a dispersant, a zinc molybdate modified pigment, a silicon-based calcium ion exchange type antirust pigment, a calcium phosphate-based anticorrosion inhibitor, siloxane modified nano mica powder, superfine talcum powder, superfine barium sulfate, titanium dioxide, organic soil and an anti-flash embroidery agent according to the formula ratio, pre-dispersing at 900-1200 rpm, grinding to the fineness of below 15 mu m by using a horizontal sand mill, controlling the temperature to be 40-50 ℃ and controlling the flow to be 10-15L/min to obtain slurry;
s2, sequentially adding the water-based acrylic emulsion, the ethylene glycol butyl ether, the dipropylene glycol methyl ether and the alcohol ester twelve according to the formula ratio, and stirring for 5-10 minutes at the speed of 300-600 r/min;
s3, adding the siloxane-based coupling agent with the formula amount into S2, stirring for 5-10 minutes at 600 rpm and 300-;
s4, adding the epoxy phosphate polymer with the formula amount into S3, stirring for 20-30 minutes at 500 revolutions per part;
s5, adding S1 slurry into S4, stirring for 30 minutes at 600 revolutions per minute, and adjusting the viscosity by using a thickening agent and deionized water to obtain the bottom-surface integrated self-drying water-based paint.
The paint film performance test of the 1-4# side in the example 1 is carried out, as shown in the table 2, the water resistance and the salt spray resistance of the paint film can be delayed by adopting the calcium ion exchange type antirust pigment, the early occurrence of rust spots is avoided, the early water resistance and the salt spray resistance are normal by adopting other antirust pigments, but the rust spots are obviously generated on the paint film along with the prolonging of time, and the service life of the paint film is reduced, because the silicon-based calcium ion exchange type antirust pigment is adopted, the silicon-based calcium ion exchange type antirust pigment can be dispersed in the paint film to adsorb attack ions, the generation of ferrous ions or ferric ions of an anode is delayed, and the good corrosion resistance is; in addition, the antirust pigment can be dissociated under alkaline conditions to release silicate ions; when the cathode reaction occurs and the regional alkalinity rises, hydroxide ions are consumed to release silicate ions, the silicate ions and calcium ions, ferrous ions or iron ions generate insoluble silicate to cover the surfaces of the cathode and the anode to form a passivation protective film, so that the generation of the cathode and anode electrode reaction is blocked, and the antirust effect is achieved from two physical and chemical layers.
TABLE 1 experiment with varying rust inhibiting pigments
| 1# | 2# | 3# | 4# | |
| Acrylic emulsion | 43.5 | 43.5 | 43.5 | 43.5 |
| Ethylene glycol butyl ether | 2 | 2 | 2 | 2 |
| Dipropylene glycol methyl ether | 1.5 | 1.5 | 1.5 | 1.5 |
| Twelve alcohol ester | 1.5 | 1.5 | 1.5 | 1.5 |
| Dispersing agent | 0.4 | 0.4 | 0.4 | 0.4 |
| Siloxane coupling agent | 1.5 | 1.5 | 1.5 | 1.5 |
| Epoxy phosphate ester polymer | 2 | 2 | 2 | 2 |
| Zinc molybdate modified pigments | 3 | 3 | 3 | 3 |
| Calcium ion exchange antirust pigment | 3 | - | - | - |
| Iron oxide red | - | 3 | - | - |
| Aluminum powder | - | - | 3 | - |
| Glass flakes | - | - | - | 3 |
| Calcium phosphate-based corrosion inhibitor | 3 | 3 | 3 | 3 |
| Siloxane modified nano mica powder | 7 | 7 | 7 | 7 |
| Superfine talcum powder | 3 | 3 | 3 | 3 |
| Superfine barium sulfate | 3.5 | 3.5 | 3.5 | 3.5 |
| Titanium white powder | 17 | 17 | 17 | 17 |
| Organic soil | 0.2 | 0.2 | 0.2 | 0.2 |
| Flash rust preventive | 0.4 | 0.4 | 0.4 | 0.4 |
| Thickening agent | 0.5 | 0.5 | 0.5 | 0.5 |
| Deionized water | 7.4 | 7.4 | 7.4 | 7.4 |
| Total up to | 100 | 100 | 100 | 100 |
TABLE 2 Change of Rust preventive pigment for paint film Performance test
Example 2
A multipurpose primer-topcoat water-based paint is prepared by changing the proportion of calcium ion exchange type anti-rust pigment and calcium phosphate-based anti-corrosion inhibitor, wherein the serial numbers are 5#, 6#, 7#, 8#, see Table 3, the preparation method of the paint is the same as that of example 1, the paint film performance is detected, see Table 4, the effect of changing the amount of the anti-rust pigment and the inhibitor on the water resistance and the salt fog resistance of the paint film is known, wherein the amount of the anti-rust pigment and the inhibitor is 1:0.8-1.2, the performance complementation of the anti-rust pigment and the inhibitor can be realized, because the calcium phosphate-based anti-corrosion inhibitor and the calcium ion exchange type anti-rust pigment can generate a synergistic effect in the aspects of ion removal and passivation, the water permeation is reduced, the calcium ion concentration in the proportion is complemented, the insoluble silicate ions and the calcium ions can be fully generated to form a compact passivation protective film on a substrate, the antirust effect is achieved from two aspects of physics and chemistry.
TABLE 3 experiment with varying amounts of rust inhibitive pigment and inhibitor
| 5# | 6# | 7# | 8# | |
| Acrylic emulsion | 43.5 | 43.5 | 43.5 | 43.5 |
| Ethylene glycol butyl ether | 2 | 2 | 2 | 2 |
| Dipropylene glycol methyl ether | 1.5 | 1.5 | 1.5 | 1.5 |
| Twelve alcohol ester | 1.5 | 1.5 | 1.5 | 1.5 |
| Dispersing agent | 0.4 | 0.4 | 0.4 | 0.4 |
| Siloxane coupling agent | 1.5 | 1.5 | 1.5 | 1.5 |
| Epoxy phosphate ester polymer | 2 | 2 | 2 | 2 |
| Zinc molybdate modified pigments | 3 | 3 | 2.5 | 3 |
| Calcium ion exchange antirust pigment | 3.1 | 3.6 | 3.5 | 2.9 |
| Calcium phosphate-based corrosion inhibitor | 2.9 | 2.4 | 3.1 | |
| Siloxane modified nano mica powder | 7 | 7 | 7 | 7 |
| Superfine talcum powder | 3 | 3 | 3 | 3 |
| Superfine barium sulfate | 3.5 | 3.5 | 3.5 | 3.5 |
| Titanium white powder | 17 | 17 | 17 | 17 |
| Organic soil | 0.2 | 0.2 | 0.2 | 0.2 |
| Flash rust preventive | 0.4 | 0.4 | 0.4 | 0.4 |
| Thickening agent | 0.5 | 0.5 | 0.5 | 0.5 |
| Deionized water | 7.4 | 7.4 | 7.4 | 7.4 |
| Total up to | 100 | 100 | 100 | 100 |
| In a ratio of | 1:0.94 | 1:0.67 | 1:1.4 | 1:1.06 |
TABLE 4 paint film property test with varying amounts of rust inhibitive pigment and inhibitor
Example 3
A multipurpose primer-topcoat water-based paint is disclosed, the type of an adhesion promoter is changed for carrying out experiments, the number is No. 1, No. 9 and No. 10, see table 5, the preparation method of the colored paint is the same as that of example 1, the performance of a paint film is detected, see table 6, the adhesion promoter is changed to influence the adhesion of the paint film, the initial adhesion of different adhesion promoters to different substrates (steel plates, aluminum plates, galvanized plates, acrylic plates and PVC) can be accepted, but the adhesion of the paint film is seriously reduced along with water resistance or salt fog resistance, the service life is influenced, and the adhesion promoter of epoxy phosphate ester polymer is adopted, a main chain of the epoxy phosphate ester polymer contains a large number of groups capable of being bonded with the surface of the substrate, the adhesion of the paint to the substrate is improved, and the application field of the formula is expanded.
Example 5 kinds of adhesion promoters experiments were carried out
| 1# | 9# | 10# | |
| Acrylic emulsion | 43.5 | 43.5 | 43.5 |
| Ethylene glycol butyl ether | 2 | 2 | 2 |
| Dipropylene glycol methyl ether | 1.5 | 1.5 | 1.5 |
| Twelve alcohol ester | 1.5 | 1.5 | 1.5 |
| Dispersing agent | 0.4 | 0.4 | 0.4 |
| Siloxane coupling agent | 1.5 | 1.5 | 1.5 |
| Epoxy phosphate ester polymer | 2 | - | - |
| Other accelerators | - | 2 | - |
| Titanate coupling agent | - | - | 2 |
| Zinc molybdate modified pigments | 3 | 3 | 3 |
| Calcium ion exchange antirust pigment | 3 | 3 | 3 |
| Calcium phosphate-based corrosion inhibitor | 3 | 3 | 3 |
| Siloxane modified nano mica powder | 7 | 7 | 7 |
| Superfine talcum powder | 3 | 3 | 3 |
| Superfine barium sulfate | 3.5 | 3.5 | 3.5 |
| Titanium white powder | 17 | 17 | 17 |
| Organic soil | 0.2 | 0.2 | 0.2 |
| Flash rust preventive | 0.4 | 0.4 | 0.4 |
| Thickening agent | 0.5 | 0.5 | 0.5 |
| Deionized water | 7.4 | 7.4 | 7.4 |
| Total up to | 100 | 100 | 100 |
TABLE 6 type paint film Property testing of adhesion promoters
Example 4
A multi-purpose primer-topcoat water-based paint is prepared by carrying out experiments on formulas No. 1 and No. 5 in examples except that a calcium phosphate-based corrosion inhibitor is removed, replacing the calcium phosphate-based corrosion inhibitor with water, wherein the numbers are No. 1-1 and No. 5-1, and detecting the performance of a paint film, and as shown in Table 7, the water resistance and the salt spray resistance of the paint film are seriously reduced, and rust spots and the like are obviously generated.
Table 7 example 4 paint film property testing
Example 5
A multipurpose water paint with integrated bottom and top is prepared through changing the temp of color paste grinding in S1 in the course of preparation to 35 deg.C for formula No. 1 and No. 5, mixing oil, and storing the color oil, and features low storage stability of prepared color oil, easy generation of water and caking, high storage stability of color oil, and no water separation, and the "activation" of each material in color paste in said stable region.
In summary, all the above embodiments and the materials used in the above embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A multipurpose primer-topcoat water-based paint comprises the following components: 38-52 parts of self-drying water-based acrylic emulsion, 1-2 parts of ethylene glycol monobutyl ether, 1-2 parts of dipropylene glycol methyl ether, twelve 1-2 parts of alcohol ester, 0.2-0.7 part of dispersant, 1-3 parts of siloxane coupling agent, 1-3 parts of epoxy phosphate polymer, 1-3 parts of zinc molybdate modified pigment, 2-5 parts of calcium ion exchange type antirust pigment, 2-5 parts of calcium phosphate-based corrosion inhibitor, 2-10 parts of siloxane modified nano mica powder, 2-6 parts of superfine talcum powder, 2-6 parts of superfine barium sulfate, 11-23 parts of titanium dioxide, 0.1-0.5 part of organic soil, 0.3-0.8 part of flash rust inhibitor, 0.2-1 part of thickening agent and 0.1-34 parts of deionized water.
2. The multipurpose primer-topcoat water-based paint according to claim 1, wherein: comprises the following components: 38-45 parts of self-drying water-based acrylic emulsion, 1.5-2 parts of ethylene glycol monobutyl ether, 1-1.5 parts of dipropylene glycol methyl ether, 1-1.5 parts of alcohol ester dodeca, 0.3-0.5 part of dispersing agent, 1.2-1.8 parts of siloxane-based coupling agent, 1.8-2.2 parts of epoxy phosphate polymer, 2.6-3 parts of zinc molybdate modified pigment, 2-3 parts of calcium ion exchange type antirust pigment, 2-3 parts of calcium phosphate-based anti-corrosion inhibitor, 5-8 parts of siloxane modified nano mica powder, 2-4 parts of superfine talcum powder, 2-3.5 parts of superfine barium sulfate, 15-20 parts of titanium dioxide, 0.1-0.3 part of organic soil, 0.3-0.5 part of anti-flash agent, 0.2-0.6 part of thickening agent and 0.1-38 parts of deionized water.
3. The multipurpose primer-topcoat water-based paint according to claim 1 or 2, wherein: the ratio of the calcium ion exchange type antirust pigment to the calcium phosphate-based anticorrosion inhibitor is 1: 0.8-1.2.
4. The multipurpose primer-topcoat water-based paint as claimed in claim 1, which is composed of: 43.5 parts of self-drying water-based acrylic emulsion, 2 parts of ethylene glycol butyl ether, 1.5 parts of dipropylene glycol methyl ether, twelve 1.5 parts of alcohol ester, 0.4 part of dispersing agent, 1.5 parts of siloxane-based coupling agent, 2 parts of epoxy phosphate polymer, 3 parts of zinc molybdate modified pigment, 3 parts of calcium ion exchange type antirust pigment, 3 parts of calcium phosphate-based anticorrosion inhibitor, 7 parts of siloxane-modified nano mica powder, 3 parts of superfine talcum powder, 3 parts of superfine barium sulfate, 3.5 parts of titanium dioxide, 0.2 part of organic soil, 0.4 part of anti-rust agent, 0.5 part of thickening agent and 7 parts of deionized water.
5. The multipurpose primer-topcoat water-based paint according to claims 1 to 4, wherein: the application fields are steel plates, aluminum plates, galvanized plates, acrylic plates and PVC.
6. The multipurpose primer-topcoat water-based paint according to claims 1-4, which is prepared by the following steps:
s1, sequentially adding a dispersant, a zinc molybdate modified pigment, a silicon-based calcium ion exchange type antirust pigment, a calcium phosphate-based anticorrosion inhibitor, siloxane modified nano mica powder, superfine talcum powder, superfine barium sulfate, titanium dioxide, organic soil and an anti-flash embroidery agent according to the formula ratio, pre-dispersing at 900-1200 rpm, grinding to the fineness of below 15 mu m by using a horizontal sand mill, controlling the temperature to be 40-50 ℃ and controlling the flow to be 10-15L/min to obtain slurry;
s2, sequentially adding the water-based acrylic emulsion, the ethylene glycol butyl ether, the dipropylene glycol methyl ether and the alcohol ester twelve according to the formula ratio, and stirring for 5-10 minutes at the speed of 300-600 r/min;
s3, adding the silicone-based coupling agent with the formula amount into S2, stirring for 5-10 minutes at 600 rpm;
s4, adding the epoxy phosphate polymer with the formula amount into S3, stirring for 20-30 minutes at 500 revolutions per part;
s5, adding S1 slurry into S4, stirring for 30 minutes at 600 revolutions per minute, and adjusting the viscosity by using a thickening agent and deionized water to obtain the bottom-surface integrated self-drying water-based paint.
7. The method for preparing a multipurpose primer-topcoat waterborne coating as claimed in claim 6, wherein: the grinding process in the S1 is as follows: the temperature is 40-50 ℃, and the flow rate is 10-15L/min.
8. The method for preparing a multipurpose primer-topcoat waterborne coating as claimed in claim 6, wherein: the fineness of the grinding slurry in the grinding process in S1 is less than or equal to 15 um.
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