CN110698935A - Outdoor water-based anticorrosive finish paint and preparation method thereof - Google Patents
Outdoor water-based anticorrosive finish paint and preparation method thereof Download PDFInfo
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- CN110698935A CN110698935A CN201910982893.7A CN201910982893A CN110698935A CN 110698935 A CN110698935 A CN 110698935A CN 201910982893 A CN201910982893 A CN 201910982893A CN 110698935 A CN110698935 A CN 110698935A
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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
- 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
- C09D133/04—Homopolymers or copolymers of esters
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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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- 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
- C09D7/40—Additives
- C09D7/47—Levelling agents
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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
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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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
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- 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
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
- C08K2003/2213—Oxides; Hydroxides of metals of rare earth metal of cerium
-
- C—CHEMISTRY; METALLURGY
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
-
- C—CHEMISTRY; METALLURGY
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses an outdoor water-based anticorrosive finish paint and a preparation method thereof, and relates to the field of paint. The outdoor water-based anticorrosive finish paint comprises a component A and a component B; wherein, the component A comprises: polyvinyl alcohol, water-based acrylic resin, water-based epoxy resin and distilled water. The component B comprises: the paint comprises low molecular weight polyamide, a water-based polyurethane curing agent, a dispersant sodium dodecyl benzene sulfonate, a mildew preventive dodecyl dimethyl benzyl ammonium bromide, flatting agent organic modified polydimethylsiloxane, defoaming agent water-based polysiloxane, a flame retardant ammonium polyphosphate, an ultraviolet absorbent nano cerium dioxide, a pigment and distilled water. The outdoor water-based anticorrosive finish paint has the advantages of high gloss, strong weather resistance, water resistance, alkali resistance, ultraviolet radiation resistance and the like, and is widely applied to the anticorrosion and decoration industries of outdoor articles.
Description
Technical Field
The invention relates to the field of coatings, in particular to an outdoor water-based anticorrosive finish paint and a preparation method thereof.
Background
The water-based anticorrosive finish paint is an environment-friendly paint which takes water as a diluent and is not added with an organic solvent, and does not contain a toxic solvent, so that the water-based anticorrosive finish paint is non-toxic, does not have pungent smell, is harmless to a human body, and does not pollute the surrounding environment. In real life, most of mechanical equipment such as ships, outdoor electric facilities, steel frames and bridges are often damaged by solarization and rain corrosion, so that the mechanical equipment is usually protected by spraying paint. The top coat is the last layer of coating in the whole coating, plays a main role in decoration and protection in the whole coating and determines the durability of the coating.
Firstly, the weather resistance is an important index of the finish paint, and the finish paint is required to be free from color change, light loss, foaming and cracking under the climatic conditions of extreme temperature change, humidity change, wind, snow, rain and hail. The appearance of the paint film after coating requires plump appearance, no orange peel, good leveling property and bright and beautiful luster. In addition, the finish paint also has the performances of enough hardness, impact resistance, chemical resistance, stain resistance, corrosion resistance and the like, and the common paint in the current market only plays a role in decoration and beautification and cannot meet the requirements of long-term corrosion resistance, rust resistance and impact resistance.
Disclosure of Invention
The invention aims to provide an outdoor water-based anticorrosive finish paint with attractive appearance, weather resistance, corrosion resistance and strong impact resistance and a preparation method thereof.
The invention relates to an outdoor water-based anticorrosive finish paint and a preparation method thereof, which are characterized in that: comprises a component A and a component B;
the component A comprises: 20-25 parts of polyvinyl alcohol, 30-50 parts of water-based acrylic resin, 10-20 parts of water-based epoxy resin and 15-30 parts of distilled water.
The component B comprises: 15-25 parts of low molecular weight polyamide, 3-10 parts of a waterborne polyurethane curing agent, 2-5 parts of a dispersant sodium dodecyl benzene sulfonate, 2-3 parts of a mildew preventive dodecyl dimethyl benzyl ammonium bromide, 1-2 parts of a flatting agent organic modified polydimethylsiloxane, 1-1.5 parts of a defoaming agent waterborne polysiloxane, 2-3 parts of a flame retardant ammonium polyphosphate, 1-1.8 parts of an ultraviolet absorber nano cerium dioxide, 2-5 parts of a pigment and 5-10 parts of distilled water.
The parts are all parts by mass.
Further, the outdoor water-based anticorrosive finish paint comprises the component A: 20-23 parts of polyvinyl alcohol, 35-45 parts of water-based acrylic resin, 12-18 parts of water-based epoxy resin and 20-25 parts of distilled water. The component B comprises: 18-22 parts of low molecular weight polyamide, 5-8 parts of a waterborne polyurethane curing agent, 3-4 parts of a dispersant sodium dodecyl benzene sulfonate, 2.2-2.8 parts of a mildew preventive dodecyl dimethyl benzyl ammonium bromide, 1.3-1.8 parts of a flatting agent organic modified polydimethylsiloxane, 1.1-1.3 parts of a defoaming agent waterborne polysiloxane, 2.2-2.8 parts of a flame retardant ammonium polyphosphate, 1.2-1.6 parts of an ultraviolet absorbent nano cerium dioxide, 2.5-4 parts of a pigment and 6-10 parts of distilled water. The parts are all parts by mass.
Further, the outdoor water-based anticorrosive finish paint comprises the component A: 22 parts of polyvinyl alcohol, 40 parts of water-based acrylic resin, 15 parts of water-based epoxy resin and 22 parts of distilled water. The component B comprises: 20 parts of low molecular weight polyamide, 7 parts of waterborne polyurethane curing agent, 3.5 parts of dispersant sodium dodecyl benzene sulfonate, 2.5 parts of mildew preventive dodecyl dimethyl benzyl ammonium bromide, 1.6 parts of flatting agent organic modified polydimethylsiloxane, 1.2 parts of defoamer waterborne polysiloxane, 2.5 parts of flame retardant ammonium polyphosphate, 1.4 parts of ultraviolet absorbent nano cerium dioxide, 3 parts of pigment and 8 parts of distilled water. The parts are all parts by mass.
Further, the outdoor water-based anticorrosive finish paint is prepared from one of titanium dioxide, iron oxide red, carbon black or phthalocyanine blue.
The invention relates to a preparation method of an outdoor water-based anticorrosive finish paint, which comprises the following steps:
firstly, adding distilled water into a reaction kettle with a stirrer, heating to 45-50 ℃, adding polyvinyl alcohol, stirring while heating, controlling the temperature in the kettle to be 90-95 ℃, and keeping the temperature and stirring for 0.5h to completely dissolve the polyvinyl alcohol. And then adding water-based acrylic resin and water-based epoxy resin, controlling the temperature in the kettle to be 80-90 ℃, keeping the temperature, stirring for 1-2 hours, and finally cooling the material to 30-40 ℃ to obtain the component A.
Secondly, adding distilled water into a reaction kettle with a stirrer, heating to 35-40 ℃, adding low molecular weight polyamide, stirring while heating, controlling the temperature in the kettle to 65-75 ℃, and keeping the temperature and stirring for 0.5h to completely dissolve the polyamide. Then adding dispersing agent sodium dodecyl benzene sulfonate, mildew preventive dodecyl dimethyl benzyl ammonium bromide, flatting agent organic modified polydimethylsiloxane, defoaming agent aqueous polysiloxane, flame retardant ammonium polyphosphate and ultraviolet absorbent nano cerium dioxide, and stirring for 1h while keeping the temperature. And finally, adding a waterborne polyurethane curing agent and a pigment, continuously stirring for 0.5h, cooling the material to 25-30 ℃, and grinding until the fineness of the material is 20-40 mu m to obtain the component B.
The invention relates to a using method of an outdoor water-based anticorrosive finish paint, which comprises the following steps: and after the component A and the component B are uniformly mixed, the use is finished within 6 hours.
The invention relates to an outdoor water-based anticorrosive finish paint and a preparation method thereof, which are different from the prior art in that: the outdoor water-based anticorrosive finish paint disclosed by the invention is bright and full in appearance and flat in paint film; and has the advantages of excellent corrosion resistance, impact resistance and the like.
Detailed Description
The outdoor water-based anticorrosive finish paint and the preparation method thereof according to the present invention will be further described with reference to the following examples and verification tests.
Example 1
The outdoor water-based anticorrosive finish paint of the embodiment comprises the following raw materials:
220kg of polyvinyl alcohol, 400kg of water-based acrylic resin, 150kg of water-based epoxy resin, 300kg of distilled water, 200kg of low molecular weight polyamide, 70kg of water-based polyurethane curing agent, 35kg of dispersant sodium dodecyl benzene sulfonate, 25kg of mildew preventive dodecyl dimethyl benzyl ammonium bromide, 16kg of flatting agent organic modified polydimethylsiloxane, 12kg of defoaming agent water-based polysiloxane, 25kg of flame retardant ammonium polyphosphate, 14kg of ultraviolet absorbent nano cerium dioxide and 30kg of pigment titanium dioxide.
The preparation method comprises the following steps:
firstly, adding 220kg of distilled water into a reaction kettle with a stirrer, heating to 46 ℃, adding polyvinyl alcohol, heating while stirring, controlling the temperature in the kettle at 92 ℃, and keeping the temperature and stirring for 0.5h to completely dissolve the polyvinyl alcohol. Then adding waterborne acrylic resin and waterborne epoxy resin, controlling the temperature in the kettle at 85 ℃, and stirring for 1.5h under the condition of heat preservation. And finally, cooling the material to 35 ℃ to obtain the component A.
And secondly, adding 80kg of distilled water into a reaction kettle with a stirrer, heating to 38 ℃, adding low-molecular-weight polyamide, heating while stirring, controlling the temperature in the kettle to be 68 ℃, and keeping the temperature and stirring for 0.5h to completely dissolve the polyamide. Then adding dispersing agent sodium dodecyl benzene sulfonate, mildew preventive dodecyl dimethyl benzyl ammonium bromide, flatting agent organic modified polydimethylsiloxane, defoaming agent aqueous polysiloxane, flame retardant ammonium polyphosphate and ultraviolet absorbent nano cerium dioxide, and stirring for 1h while keeping the temperature. And finally, adding the waterborne polyurethane curing agent and the pigment titanium dioxide, continuously stirring for 0.5h, cooling the material to 28 ℃, and grinding until the material fineness is 30 mu m to obtain the component B.
The component A and the component B are uniformly mixed and then coated on a substrate, and the use is finished within 6 hours.
Example 2
The outdoor water-based anticorrosive finish paint of the embodiment comprises the following raw materials:
210kg of polyvinyl alcohol, 420kg of water-based acrylic resin, 140kg of water-based epoxy resin, 320kg of distilled water, 190kg of low molecular weight polyamide, 72kg of water-based polyurethane curing agent, 34kg of dispersant sodium dodecyl benzene sulfonate, 23kg of mildew preventive dodecyl dimethyl benzyl ammonium bromide, 17kg of flatting agent organic modified polydimethylsiloxane, 13kg of defoaming agent water-based polysiloxane, 23kg of flame retardant ammonium polyphosphate, 15kg of ultraviolet absorbent nano cerium dioxide and 35kg of pigment iron oxide red.
The preparation method comprises the following steps:
firstly, adding 230kg of distilled water into a reaction kettle with a stirrer, heating to 48 ℃, adding polyvinyl alcohol, heating while stirring, controlling the temperature in the kettle at 93 ℃, and keeping the temperature and stirring for 0.5h to completely dissolve the polyvinyl alcohol. Then adding waterborne acrylic resin and waterborne epoxy resin, controlling the temperature in the kettle at 82 ℃, and stirring for 1.6h under heat preservation. And finally, cooling the material to 32 ℃ to obtain the component A.
And secondly, adding 90kg of distilled water into a reaction kettle with a stirrer, heating to 36 ℃, adding low-molecular-weight polyamide, heating while stirring, controlling the temperature in the kettle at 70 ℃, and keeping the temperature and stirring for 0.5h to completely dissolve the polyamide. Then adding dispersing agent sodium dodecyl benzene sulfonate, mildew preventive dodecyl dimethyl benzyl ammonium bromide, flatting agent organic modified polydimethylsiloxane, defoaming agent aqueous polysiloxane, flame retardant ammonium polyphosphate and ultraviolet absorbent nano cerium dioxide, and stirring for 1h while keeping the temperature. And finally, adding the waterborne polyurethane curing agent and the pigment titanium dioxide, continuously stirring for 0.5h, cooling the material to 29 ℃, and grinding until the material fineness is 35 mu m to obtain the component B.
The component A and the component B are uniformly mixed and then coated on a substrate, and the use is finished within 6 hours.
Example 3
The outdoor water-based anticorrosive finish paint of the embodiment comprises the following raw materials:
230kg of polyvinyl alcohol, 380kg of water-based acrylic resin, 170kg of water-based epoxy resin, 330kg of distilled water, 210kg of low molecular weight polyamide, 68kg of water-based polyurethane curing agent, 38kg of dispersant sodium dodecyl benzene sulfonate, 26kg of mildew preventive dodecyl dimethyl benzyl ammonium bromide, 15kg of flatting agent organic modified polydimethylsiloxane, 11kg of defoaming agent water-based polysiloxane, 26kg of flame retardant ammonium polyphosphate, 16kg of ultraviolet absorbent nano cerium dioxide and 38kg of pigment phthalocyanine blue.
The preparation method comprises the following steps:
firstly, adding 240kg of distilled water into a reaction kettle with a stirrer, heating to 48 ℃, adding polyvinyl alcohol, heating while stirring, controlling the temperature in the kettle at 91 ℃, and keeping the temperature and stirring for 0.5h to completely dissolve the polyvinyl alcohol. Then adding waterborne acrylic resin and waterborne epoxy resin, controlling the temperature in the kettle at 82 ℃, and stirring for 1.5h under heat preservation. And finally, cooling the material to 38 ℃ to obtain the component A.
And secondly, adding 90kg of distilled water into a reaction kettle with a stirrer, heating to 40 ℃, adding low-molecular-weight polyamide, heating while stirring, controlling the temperature in the kettle to 72 ℃, and keeping the temperature and stirring for 0.5h to completely dissolve the polyamide. Then adding dispersing agent sodium dodecyl benzene sulfonate, mildew preventive dodecyl dimethyl benzyl ammonium bromide, flatting agent organic modified polydimethylsiloxane, defoaming agent aqueous polysiloxane, flame retardant ammonium polyphosphate and ultraviolet absorbent nano cerium dioxide, and stirring for 1h while keeping the temperature. And finally, adding the waterborne polyurethane curing agent and the pigment titanium dioxide, continuously stirring for 0.5h, cooling the material to 30 ℃, and grinding until the material fineness is 28 microns to obtain the component B.
The component A and the component B are uniformly mixed and then coated on a substrate, and the use is finished within 6 hours.
The performance of the products of examples 1-3 was tested and the results are shown in Table 1.
TABLE 1 Performance indices of the products of examples 1-3
As shown in Table 1, the outdoor water-based anticorrosive finish paint disclosed by the invention has the advantages that the hardness, chemical resistance, adhesive force and other properties of the finish paint are obviously superior to those of the existing product standards, particularly, the weather resistance such as ultraviolet resistance is strong, and the finish paint can still keep the product from being pulverized and has the color change and cracking of only grade 1 after 1500 hours of test verification.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (6)
1. An outdoor water-based anticorrosive finish paint is characterized in that: comprises a component A and a component B; the component A comprises: 20-25 parts of polyvinyl alcohol, 30-50 parts of water-based acrylic resin, 10-20 parts of water-based epoxy resin and 15-30 parts of distilled water; the component B comprises: 15-25 parts of low molecular weight polyamide, 3-10 parts of a waterborne polyurethane curing agent, 2-5 parts of a dispersant sodium dodecyl benzene sulfonate, 2-3 parts of a mildew preventive dodecyl dimethyl benzyl ammonium bromide, 1-2 parts of a flatting agent organic modified polydimethylsiloxane, 1-1.5 parts of a defoaming agent waterborne polysiloxane, 2-3 parts of a flame retardant ammonium polyphosphate, 1-1.8 parts of an ultraviolet absorber nano cerium dioxide, 2-5 parts of a pigment and 5-10 parts of distilled water; the parts are all parts by mass.
2. The outdoor water-based anticorrosive topcoat according to claim 1, further comprising the component A: 20-23 parts of polyvinyl alcohol, 35-45 parts of water-based acrylic resin, 12-18 parts of water-based epoxy resin and 20-25 parts of distilled water; the component B comprises: 18-22 parts of low molecular weight polyamide, 5-8 parts of a waterborne polyurethane curing agent, 3-4 parts of a dispersant sodium dodecyl benzene sulfonate, 2.2-2.8 parts of a mildew preventive dodecyl dimethyl benzyl ammonium bromide, 1.3-1.8 parts of flatting agent organic modified polydimethylsiloxane, 1.1-1.3 parts of a defoaming agent waterborne polysiloxane, 2.2-2.8 parts of a flame retardant ammonium polyphosphate, 1.2-1.6 parts of an ultraviolet absorbent nano cerium dioxide, 2.5-4 parts of a pigment and 6-10 parts of distilled water; the parts are all parts by mass.
3. The outdoor water-based anticorrosive topcoat according to claim 2, further comprising the component A: 22 parts of polyvinyl alcohol, 40 parts of waterborne acrylic resin, 15 parts of waterborne epoxy resin and 22 parts of distilled water; the component B comprises: 20 parts of low molecular weight polyamide, 7 parts of waterborne polyurethane curing agent, 3.5 parts of dispersant sodium dodecyl benzene sulfonate, 2.5 parts of mildew preventive dodecyl dimethyl benzyl ammonium bromide, 1.6 parts of flatting agent organic modified polydimethylsiloxane, 1.2 parts of defoamer waterborne polysiloxane, 2.5 parts of flame retardant ammonium polyphosphate, 1.4 parts of ultraviolet absorbent nano cerium dioxide, 3 parts of pigment and 8 parts of distilled water; the parts are all parts by mass.
4. The outdoor water-based anticorrosive finish paint according to claims 1-3, characterized in that: the pigment is one of titanium dioxide, iron oxide red, carbon black or phthalocyanine blue.
5. The method for preparing the outdoor water-based anticorrosive finish paint according to claim 1, characterized in that: the method comprises the following steps:
firstly, adding distilled water into a reaction kettle with a stirrer, heating to 45-50 ℃, adding polyvinyl alcohol, stirring while heating, controlling the temperature in the kettle to be 90-95 ℃, and keeping the temperature and stirring for 0.5h to completely dissolve the polyvinyl alcohol; then adding water-based acrylic resin and water-based epoxy resin, controlling the temperature in the kettle to be 80-90 ℃, and stirring for 1-2 hours under the condition of heat preservation; finally, cooling the material to 30-40 ℃ to obtain a component A;
secondly, adding distilled water into a reaction kettle with a stirrer, heating to 35-40 ℃, adding low-molecular-weight polyamide, stirring while heating, controlling the temperature in the kettle to 65-75 ℃, and keeping the temperature and stirring for 0.5h to completely dissolve the polyamide; then adding dispersing agent sodium dodecyl benzene sulfonate, mildew preventive dodecyl dimethyl benzyl ammonium bromide, flatting agent organic modified polydimethylsiloxane, defoaming agent aqueous polysiloxane, flame retardant ammonium polyphosphate and ultraviolet absorbent nano cerium dioxide, and stirring for 1h while keeping the temperature; and finally, adding a waterborne polyurethane curing agent and a pigment, continuously stirring for 0.5h, cooling the material to 25-30 ℃, and grinding until the fineness of the material is 20-40 mu m to obtain the component B.
6. The use method of the outdoor water-based anticorrosive finish paint is characterized by comprising the following steps: after the component A and the component B as described in claim 1 are mixed uniformly, the mixture is used within 6 hours.
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| CN201910982893.7A CN110698935A (en) | 2019-10-16 | 2019-10-16 | Outdoor water-based anticorrosive finish paint and preparation method thereof |
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| CN201910982893.7A CN110698935A (en) | 2019-10-16 | 2019-10-16 | Outdoor water-based anticorrosive finish paint and preparation method thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103992720A (en) * | 2014-04-23 | 2014-08-20 | 江苏欣安新材料技术有限公司 | Special coating for acrylic finishes, and making method thereof |
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- 2019-10-16 CN CN201910982893.7A patent/CN110698935A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103992720A (en) * | 2014-04-23 | 2014-08-20 | 江苏欣安新材料技术有限公司 | Special coating for acrylic finishes, and making method thereof |
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Application publication date: 20200117 |