CN110540790B - Water-based epoxy anticorrosive primer for container - Google Patents
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- 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
- C09D5/084—Inorganic compounds
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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
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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
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/103—Anti-corrosive paints containing metal dust containing Al
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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
- 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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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
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- C08K2003/321—Phosphates
- C08K2003/328—Phosphates of heavy metals
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- C08L2205/00—Polymer mixtures characterised by other features
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Abstract
The invention provides a water-based epoxy anticorrosive primer for a container and a preparation method thereof, wherein the water-based epoxy anticorrosive primer consists of a component A and a component B in a weight ratio of 12:1, wherein the component A comprises epoxy resin emulsion, water-based functional emulsion, functional shielding filler, talcum powder, anti-rust pigment, coloring pigment, dispersing agent, wetting agent, film-forming assistant, thickening agent, defoaming agent and purified water; the component B comprises a water-soluble modified amine curing agent, an anti-flash rust agent and purified water. The epoxy emulsion is modified by the water-based functional emulsion, so that the adhesion to a substrate is improved, and the dryness and water resistance of a paint film are improved. The addition of the functional shielding filler enhances the shielding effect of the paint film and obviously improves the corrosion resistance of the paint film. The water-based epoxy anticorrosive primer is a water-based paint product, has low VOC content, is diluted by water, is healthy and environment-friendly, and has the advantages of quick drying of a paint film, good adhesive force and excellent anticorrosive performance.
Description
Technical Field
The invention relates to the field of heavy corrosion resistance, in particular to a water-based epoxy anticorrosive primer for a container.
Background
At present, the production rhythm of the container is fast, and the water-based epoxy primer generally has the problem of poor corrosion resistance caused by slow drying speed.
Disclosure of Invention
The invention aims to provide a water-based epoxy anticorrosive primer with high drying speed and excellent anticorrosive performance and a preparation method thereof, so that the primer is suitable for the rapid pace of container production, and the defects of the existing product technology are overcome.
In order to achieve the purpose, the invention provides a water-based epoxy anticorrosive primer for a container, which consists of a component A and a component B, wherein the component A comprises an epoxy resin emulsion, a water-based functional emulsion, a functional shielding filler, talcum powder, an antirust pigment, a coloring pigment, a dispersing agent, a wetting agent, a film-forming assistant, a thickening agent, an antifoaming agent and purified water; the component B comprises a water-soluble modified amine curing agent, an anti-flash rust agent and purified water; the weight ratio of the component A to the component B is 12: 1.
Further, the component A comprises the following components in percentage by weight:
40.0 to 45.0 percent of epoxy resin emulsion;
4.0 to 6.0 percent of aqueous functional emulsion;
0.5 to 1.0 percent of dispersant;
0.1 to 0.2 percent of surfactant;
0.1 to 0.5 percent of defoaming agent;
5.0 to 10.0 percent of iron oxide pigment;
5.0 to 8.0 percent of antirust pigment;
3.0-5.0% of functional filler;
7.0 to 15.0 percent of talcum powder;
1.5 to 3.0 percent of film forming additive;
0.2 to 1.0 percent of thickening agent;
12.0 to 18.0 percent of purified water;
the component B comprises the following components in percentage by weight:
50.0-60.0% of water-soluble modified amine curing agent;
0.5-2.0% of flash rust inhibitor;
40.0 to 50.0 percent of purified water.
Further, the solid content of the epoxy resin emulsion in the component A is 53 percent; the aqueous functional emulsion is aqueous alkyl olefin resin emulsion, and the solid content of the aqueous functional emulsion is 50 percent; the dispersant is nonionic dispersant, and the solid content of the dispersant is 60%; the surfactant is a gemini surfactant based on siloxane; the defoaming agent is polyether modified organic silicon defoaming agent; the iron oxide pigment is iron oxide red; the rust-proof pigment is zinc phosphate; the functional filler is water-based aluminum paste; the talcum powder is 2500 meshes of talcum powder, and the water-soluble substance of the talcum powder is less than or equal to 0.5 percent; the film-forming assistant is dipropylene glycol butyl ether; the thickener is nonionic polyurethane associative thickener; the conductivity of the purified water is less than or equal to 6 mu S/cm.
Further, the water-soluble modified amine curing agent in the component B is a water-soluble aliphatic amine adduct, and the solid content of the water-soluble modified amine curing agent is 70%; the flash rust inhibitor is a special amine flash rust inhibitor, and the effective component content of the flash rust inhibitor is 22 percent; the conductivity of the purified water is less than or equal to 6 mu Sm/cm.
A preparation method of a water-based epoxy anti-corrosion primer for a container comprises the following steps:
(1) preparation of a component A: putting the epoxy resin emulsion, the water-based functional emulsion, the dispersant, the surfactant and the defoaming agent into a mixing tank, stirring at the rotation speed of 400-600RPM, and stirring for 10-15 minutes to mix uniformly; then sequentially adding iron oxide red, zinc phosphate anti-rust pigment and talcum powder, adjusting the stirring rotating speed to 1000-1200RPM, stirring and dispersing for 20-30 minutes at the temperature of less than or equal to 60 ℃; then grinding and dispersing the mixed slurry through a sand mill, wherein the fineness is less than or equal to 50 micrometers, the temperature is less than or equal to 60 ℃, and pumping the dispersed slurry to a blending tank; adding the functional filler aqueous aluminum powder slurry into a batching pull cylinder, adding purified water, adjusting the rotating speed to 400-600RPM, stirring for 10-15 minutes, uniformly mixing, filtering by a 100-mesh sieve, and adding into a blending tank; adjusting the stirring rotation speed of the blending tank to 400-600RPM, sequentially adding the film-forming aid and the thickening agent, stirring for 10-15 minutes, and uniformly mixing to obtain a component A;
(2) b, preparation of a component: adding the water-soluble modified amine curing agent into a material drawing cylinder, stirring at the rotating speed of 800RPM of 600 plus materials, adding purified water in 3-7 steps, and separating for 5-10 minutes every time; after the purified water is completely added, adjusting the rotating speed to 400-600RPM, stirring for 30 minutes, then adding the anti-flash rust agent, continuously stirring for 10-15 minutes, and uniformly mixing to obtain a component B;
(3) preparing a primer: adding the component B into the component A at the rotation speed of 400-600RPM, and stirring for 5-10 minutes until the components are uniformly mixed to obtain the water-based epoxy anticorrosive primer, wherein the weight ratio of the component A to the component B is 12: 1.
The water-based epoxy anticorrosive primer provided by the invention has the following advantages:
the waterborne epoxy anticorrosive primer provided by the invention is prepared by modifying an epoxy resin emulsion by adopting a waterborne functional emulsion, taking the modified amine curing agent which can be dissolved in water as a film forming substance, and taking superfine zinc phosphate antirust pigment and waterborne aluminum paste as shielding functional fillers in a reasonable matching way.
1. According to the water-based epoxy anticorrosive primer provided by the invention, the water-based functional emulsion is adopted to modify the epoxy resin emulsion, so that the drying property of the paint can be obviously improved, the adhesive force to a metal substrate is obviously improved, and the salt spray resistance and the corrosion resistance of a paint film are obviously improved.
2. The water-based epoxy anticorrosive primer provided by the invention selects the water-soluble modified amine curing agent, has good compatibility with the modified water-based epoxy emulsion, forms a three-dimensional network structure through curing and crosslinking, and has a compact paint film and good anticorrosive performance. Meanwhile, the anti-flash rust agent is matched with a special amine anti-flash rust agent, and the anti-flash rust effect is obvious.
3. The waterborne epoxy anticorrosive primer provided by the invention has the advantages that the selected superfine zinc phosphate antirust pigment is easy to disperse, the anticorrosive efficiency is high, a compact passive film can be formed on the surface of a metal substrate, and the anticorrosive performance of a paint film is obviously improved.
4. The waterborne epoxy anticorrosive primer provided by the invention adopts the waterborne aluminum paste as the functional filler, the waterborne aluminum paste has a sheet structure, the thickness of the waterborne aluminum paste is obviously lower than that of other sheet fillers such as mica powder, more laminated layers can be obtained with less addition amount, the permeation of moisture and oxygen can be effectively prevented, and the anticorrosive effect is obviously improved. Because the aqueous aluminum paste is easy to react with moisture and is unstable in the aqueous paint, the aqueous aluminum paste coated on the surface is adopted, so that the aqueous aluminum paste can be kept stable in the aqueous paint.
5. According to the water-based epoxy anticorrosive primer provided by the invention, the geminal structure surfactant based on siloxane is selected, so that excellent wetting property is ensured, good defoaming property is realized, the adhesive force of a paint film is excellent, the paint film is compact, and the shielding property and the anticorrosive property of the paint film are further improved.
6. The water-based epoxy anticorrosive primer provided by the invention selects the nonionic polyurethane associated thickener, is easy to disperse and add later, forms a three-dimensional network structure through stirring, shearing and activating, and is convenient for workshop production and adjustment.
7. The waterborne epoxy anticorrosive primer provided by the invention selects high-boiling-point dipropylene glycol butyl ether as a film forming aid, and can be fused with emulsion resin liquid drops to form a continuous coating film after the moisture of a paint film is volatilized and before the epoxy resin is crosslinked and cured.
Through the reasonable matching, the water-based epoxy anticorrosive primer provided by the invention has the advantages of fast drying of a paint film, good anticorrosive performance, excellent salt spray resistance, and no obvious change of the performance of a coating film after 1000 hours of neutral salt spray. The product effectively solves the contradiction that the production rhythm of the container is fast and the paint film is dried slowly, and has excellent corrosion resistance.
Detailed Description
The present invention will now be described in further detail with reference to examples.
Example 1
A water-based epoxy anticorrosion primer for a container comprises a component A and a component B.
Wherein, the component A comprises: 420kg of epoxy resin emulsion, 60kg of aqueous functional emulsion, 10kg of dispersing agent, 2kg of surfactant, 2kg of defoaming agent, 100kg of iron oxide pigment, 80kg of antirust pigment, 40kg of functional filler, 140kg of talcum powder, 20kg of film-forming assistant, 3kg of thickening agent and 123kg of purified water. The component B comprises: 110kg of modified amine curing agent, 4kg of flash rust inhibitor and 86kg of purified water.
The epoxy resin emulsion in the component A adopts EPIKOTE 6520-WH-53A of Ma-Tu company, the water-based functional emulsion adopts LINTEC ER-5100 of new material technology of Hunan Linte, the dispersant adopts VXW6208-60 of Zhan new company, the surfactant adopts TEGO Twin 4100 of Wingchu company, the defoamer adopts BYK-024 of BYK, the iron oxide pigment adopts iron oxide red H130 of tricyclic lake south, the antirust pigment adopts Nubirox 106 of Billey, the water-based aluminum paste adopted by the functional filler adopts HYOLAN-501 of Aika of Germany, the film-forming assistant adopts DPNB of DOW CHEMICAL, and the thickener adopts YSOL RM-12W of ACROHAS of Dow.
The modified amine curing agent in the component B is an Ancamide 2839 curing agent which is won, and the anti-flash rust agent is CA50 of Western Parsen.
The preparation method of the waterborne epoxy anticorrosive primer for the container comprises the following steps:
wherein, the component A is prepared by the following steps:
firstly, putting the epoxy resin emulsion, the water-based functional emulsion, the dispersing agent, the surfactant and the defoaming agent into a batching tank, starting stirring, adjusting the rotating speed to 600RPM, stirring for 15 minutes, and uniformly mixing; then sequentially adding iron oxide pigment, antirust pigment and talcum powder, adjusting the stirring speed to 1200RPM, and stirring and dispersing for 30 minutes at the temperature of less than or equal to 60 ℃; then grinding and dispersing the mixed slurry through a sand mill, wherein the fineness is less than or equal to 50 micrometers, the temperature is less than or equal to 60 ℃, and pumping the dispersed slurry to a blending tank; adding the functional filler aqueous aluminum powder slurry into a batching pull cylinder, adding purified water, adjusting the rotating speed to 600RPM, stirring for 15 minutes, uniformly mixing, filtering by a 100-mesh sieve, and adding into a blending tank; adjusting the stirring speed of a blending tank to 600RPM, sequentially adding the film forming aid and the thickening agent, stirring for 15 minutes, and uniformly mixing to obtain the component A.
The component B is prepared by the following steps:
adding the modified amine curing agent into a material drawing cylinder, stirring at the rotating speed of 800RPM, and adding purified water in 7 steps at an interval of 10 minutes each time; and after the purified water is completely added, adjusting the rotating speed to 600RPM, stirring for 30 minutes, then adding the anti-flash rust agent, continuously stirring for 15 minutes, and uniformly mixing to obtain the component B.
The primer is prepared by the following steps:
and (3) mixing the component A: and mixing the component B according to the proportion of 12:1, stirring at a high speed for 10 minutes at a rotating speed of 600RPM until the components are uniformly mixed to obtain the water-based epoxy anticorrosive primer. When construction is needed, tap water accounting for 10 percent of the total amount is added and mixed evenly.
Example 2
A water-based epoxy anticorrosion primer for a container comprises a component A and a component B.
Wherein, the component A comprises: 350kg of epoxy resin emulsion, 50kg of aqueous functional emulsion, 8kg of dispersing agent, 1.5kg of surfactant, 2kg of defoaming agent, 82kg of iron oxide pigment, 65kg of antirust pigment, 35kg of functional filler, 118kg of talcum powder, 17kg of film-forming additive, 2.5kg of thickening agent and 102.5kg of purified water. The component B comprises: 55kg of modified amine curing agent, 2kg of flash rust inhibitor and 43kg of purified water.
The epoxy resin emulsion in the component A adopts EPIKOTE 6520-WH-53A of Ma-Tu company, the water-based functional emulsion adopts LINTEC ER-5100 of new material technology of Hunan Linte, the dispersant adopts VXW6208-60 of Zhan new company, the surfactant adopts TEGO Twin 4100 of Wingchu company, the defoamer adopts BYK-024 of BYK, the iron oxide pigment adopts iron oxide red H130 of tricyclic lake south, the antirust pigment adopts Nubirox 106 of Billey, the water-based aluminum paste adopted by the functional filler adopts HYOLAN-501 of Aika of Germany, the film-forming assistant adopts DPNB of DOW CHEMICAL, and the thickener adopts YSOL RM-12W of ACROHAS of Dow.
The modified amine curing agent in the component B is an Ancamide 2839 curing agent which is won, and the anti-flash rust agent is CA50 of Western Parsen.
The preparation method of the waterborne epoxy anticorrosive primer for the container comprises the following steps:
wherein, the component A is prepared by the following steps:
firstly, putting the epoxy resin emulsion, the water-based functional emulsion, the dispersing agent, the surfactant and the defoaming agent into a batching tank, starting stirring, adjusting the rotating speed to 400RPM, stirring for 10 minutes and uniformly mixing; then sequentially adding iron oxide pigment, antirust pigment and talcum powder, adjusting the stirring speed to 1000RPM, and stirring and dispersing for 20 minutes at the temperature of less than or equal to 60 ℃; then grinding and dispersing the mixed slurry through a sand mill, wherein the fineness is less than or equal to 50 micrometers, the temperature is less than or equal to 60 ℃, and pumping the dispersed slurry to a blending tank; adding the functional filler aqueous aluminum powder slurry into a batching pull cylinder, adding purified water with the same amount, adjusting the rotating speed to 400RPM, stirring for 10 minutes, uniformly mixing, filtering by a 100-mesh sieve, and adding into a blending tank; adjusting the stirring speed of a blending tank to 400RPM, sequentially adding the film-forming aid and the thickening agent, stirring for 10 minutes, and uniformly mixing to obtain the component A.
The component B is prepared by the following steps:
adding the modified amine curing agent into a material drawing cylinder, stirring at the rotating speed of 600RPM, and adding purified water in 5 steps at intervals of 5 minutes each time; and after the purified water is completely added, adjusting the rotating speed to 400RPM, stirring for 30 minutes, then adding the anti-flash rust agent, continuously stirring for 10 minutes, and uniformly mixing to obtain the component B.
The primer is prepared by the following steps:
and (3) mixing the component A: and mixing the component B according to the proportion of 12:1, stirring at a high speed for 5 minutes at a rotating speed of 400RPM until the components are uniformly mixed to obtain the water-based epoxy anticorrosive primer. When construction is needed, tap water accounting for 10 percent of the total amount is added and mixed evenly.
Performance testing
The test panel production conditions were as follows:
description of the test:
4, 6 tests select a tin plate for the performance; 5. the soft steel plate is selected for 7 properties. The test piece has a size of 150mm x 70mm x (0.3 to 0.5) mm, and the surface treatment is carried out as specified in GB/T9721. 8. The 9 performances are 150mm multiplied by 70mm multiplied by (1.6-2.0) mm sandblasted steel plates with a sandblasting grade SA 2.5.
The detection is carried out by adopting a relevant standard method, and the result is as follows:
as can be seen from the above table, the water-based epoxy anticorrosive primer for the container provided by the invention has the advantages of fast surface drying, and no stickiness of a paint film after moisture volatilization; the paint film has good adhesiveness and good shielding property, and the corrosion resistance of the single coating is obviously improved.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. The water-based epoxy anticorrosive primer for the container is characterized by consisting of a component A and a component B, wherein the weight part ratio of the component A to the component B is 12: 1;
the component A comprises the following components in percentage by weight:
40.0 to 45.0 percent of epoxy resin emulsion;
4.0 to 6.0 percent of aqueous functional emulsion;
0.5 to 1.0 percent of dispersant;
0.1 to 0.2 percent of wetting agent;
0.1 to 0.5 percent of defoaming agent;
5.0 to 10.0 percent of coloring pigment;
5.0 to 8.0 percent of antirust pigment;
3.0 to 5.0 percent of functional shielding filler;
7.0 to 15.0 percent of talcum powder;
1.5 to 3.0 percent of film forming additive;
0.2 to 1.0 percent of thickening agent;
12.0 to 18.0 percent of purified water;
the component B comprises the following components in percentage by weight:
50.0-60.0% of water-soluble modified amine curing agent;
0.5-2.0% of flash rust inhibitor;
40.0 to 50.0 percent of purified water;
the solid content of the epoxy resin emulsion in the component A is 53 percent; the water-based functional emulsion adopts LINTEC ER-5100 of Hunan Linte new material technology; the dispersant is nonionic dispersant, and the solid content of the dispersant is 60%; the wetting agent is a geminal structure surfactant based on siloxane, and the surfactant is TEGO 4100 of winning and developing company; the defoaming agent is polyether modified organic silicon defoaming agent; the coloring pigment is iron oxide red; the rust-proof pigment is zinc phosphate; the functional shielding filler is water-based aluminum paste, and the water-based aluminum paste is HYDROLAN-501 of German Eka; the talcum powder is 2500 meshes of talcum powder, and the water-soluble substance of the talcum powder is less than or equal to 0.5 percent; the film-forming assistant is dipropylene glycol butyl ether; the thickener is nonionic polyurethane associative thickener; the conductivity of the purified water is less than or equal to 6 mu S/cm;
the water-soluble modified amine curing agent in the component B is an Ancamide 2839 curing agent which is created; the anti-flash rust agent adopts CA50 of Western Parsen; the conductivity of the purified water is less than or equal to 6 mu S/cm.
2. A method for preparing the waterborne epoxy anticorrosive primer for containers according to claim 1, comprising the steps of:
(1) preparation of a component A: putting the epoxy resin emulsion, the water-based functional emulsion, the dispersing agent, the wetting agent and the defoaming agent into a mixing tank, stirring at the rotation speed of 400-600RPM, and stirring for 10-15 minutes to mix uniformly; then sequentially adding iron oxide red, zinc phosphate anti-rust pigment and talcum powder, adjusting the stirring rotating speed to 1000-1200RPM, stirring and dispersing for 20-30 minutes at the temperature of less than or equal to 60 ℃; then grinding and dispersing the mixed slurry through a sand mill, wherein the fineness is less than or equal to 50 micrometers, the temperature is less than or equal to 60 ℃, and pumping the dispersed slurry to a blending tank; adding the functional shielding filler aqueous aluminum powder slurry into a batching pull cylinder, adding purified water, adjusting the rotating speed to 400-600RPM, stirring for 10-15 minutes, uniformly mixing, filtering by a 100-mesh sieve, and adding into a blending tank; adjusting the stirring rotation speed of the blending tank to 400-600RPM, sequentially adding the film-forming aid and the thickening agent, stirring for 10-15 minutes, and uniformly mixing to obtain a component A;
(2) b, preparation of a component: adding the water-soluble modified amine curing agent into a material drawing cylinder, stirring at the rotating speed of 800RPM of 600 plus materials, adding purified water in 3-7 steps, and separating for 5-10 minutes every time; after the purified water is completely added, adjusting the rotating speed to 400-600RPM, stirring for 30 minutes, then adding the anti-flash rust agent, continuously stirring for 10-15 minutes, and uniformly mixing to obtain a component B;
(3) preparing a primer: adding the component B into the component A at the rotation speed of 400-600RPM, and stirring for 5-10 minutes until the components are uniformly mixed to obtain the water-based epoxy anticorrosive primer; wherein the weight ratio of the component A to the component B is 12: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910852339.7A CN110540790B (en) | 2019-09-09 | 2019-09-09 | Water-based epoxy anticorrosive primer for container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910852339.7A CN110540790B (en) | 2019-09-09 | 2019-09-09 | Water-based epoxy anticorrosive primer for container |
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| CN111909595A (en) * | 2020-08-14 | 2020-11-10 | 常州市武进晨光金属涂料有限公司 | Water-based anticorrosive paint for metal protection and preparation method thereof |
| CN112552820A (en) * | 2020-11-06 | 2021-03-26 | 安徽墙煌彩铝科技有限公司 | Reinforcing liquid for opening of film-coated metal plate and preparation method |
| CN112646440A (en) * | 2020-12-21 | 2021-04-13 | 成都祥和新代涂料集团有限公司 | Preparation method of antirust single-component organic silicon modified primer |
| CN113667374A (en) * | 2021-07-27 | 2021-11-19 | 宁夏星邦豹丰涂料科技有限公司 | Water-based epoxy thick-paste anticorrosive paint for petroleum steel pipes |
| CN113444426A (en) * | 2021-08-23 | 2021-09-28 | 国网辽宁省电力有限公司沈阳供电公司 | Water-based epoxy anti-rust primer and preparation method thereof |
| CN115895388A (en) * | 2022-11-18 | 2023-04-04 | 清远市贝客音涂料有限公司 | Water-based environment-friendly epoxy primer and preparation method thereof |
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| CN107022281A (en) * | 2017-06-05 | 2017-08-08 | 四川奥林涂料工业有限公司 | A kind of epoxy anticorrosion primer and preparation method thereof |
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