CN113337160A - High-strength anti-corrosion high-temperature-resistant water-based paint and preparation method thereof - Google Patents
High-strength anti-corrosion high-temperature-resistant water-based paint and preparation method thereof Download PDFInfo
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- CN113337160A CN113337160A CN202110410859.XA CN202110410859A CN113337160A CN 113337160 A CN113337160 A CN 113337160A CN 202110410859 A CN202110410859 A CN 202110410859A CN 113337160 A CN113337160 A CN 113337160A
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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
- C09D121/00—Coating compositions based on unspecified rubbers
- C09D121/02—Latex
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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
-
- 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
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
Abstract
The invention discloses a high-strength anti-corrosion high-temperature-resistant water-based paint and a preparation method thereof, and the water-based paint is characterized by being prepared from the following raw materials, by weight, 5-6 parts of isophorone diisocyanate, 2-5 parts of a photopolymerization initiator, 10-20 parts of an active diluent, 1-2 parts of a defoaming agent, 100 parts of a dispersing agent, 120 parts of a plasticizer, 1-1.5 parts of high-temperature-resistant slurry and 100 parts of latex. The water-based paint prepared by the invention has the advantages of high strength, high hardness, difficult splitting, high flame retardance and good fireproof effect.
Description
Technical Field
The invention relates to the technical field of water-based paint, in particular to high-strength anti-corrosion high-temperature-resistant water-based paint and a preparation method thereof.
Background
Coatings using water as a solvent or as a dispersion medium may be referred to as waterborne coatings. The water paint includes 3 kinds of water soluble paint, water thinned paint and water dispersed paint. The water-soluble paint is a film-forming material represented by a water-soluble resin, polyvinyl alcohol and various modified materials thereof, and further comprises a water-soluble alkyd resin, a water-soluble epoxy resin, an inorganic polymer water-based resin and the like.
The water-based paint is widely coated on the outer layer of metal, but common metal can be naturally corroded in some environments for a long time, and huge loss is caused to the metal, and the protection of the metal by coating the water-based paint on the surface of the metal is a common technical means for solving the problem that the metal is easy to corrode in the prior art, so that the research on the high-strength anticorrosive paint is always an important subject of the paint industry and metal protection. The traditional water-based anticorrosive coating has good corrosion protection effect on a metal matrix, but the coating of the water-based anticorrosive coating after curing has poor impact resistance and low mechanical property, and meanwhile, the coating can be liquefied under a high-temperature environment, so that the coating is easily damaged or even falls off under the action of external force, and the protection effect of the coating on the metal matrix is reduced.
Therefore, how to provide a high-strength anti-corrosion high-temperature-resistant water-based coating and a preparation method thereof are problems to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide the high-strength anti-corrosion high-temperature-resistant water-based paint and the preparation method thereof.
According to the embodiment of the invention, the high-strength anti-corrosion high-temperature-resistant water-based paint is prepared from the following raw materials in parts by weight:
5-6 parts of isophorone diisocyanate, 2-5 parts of a photopolymerization initiator, 10-20 parts of a reactive diluent, 1-2 parts of a defoaming agent, 100-120 parts of a dispersing agent, 1-1.5 parts of a plasticizer, 10-20 parts of high-temperature resistant slurry and 100-200 parts of latex.
Preferably, the high-temperature resistant slurry is prepared from the following raw materials in parts by weight:
15-20 parts of epoxy resin, 6-8 parts of polyvinyl fluoride, 12-15 parts of rock wool, 6-8 parts of glass wool, 6-8 parts of clay fiber, 3-5 parts of ammonium dihydrogen phosphate, 3-5 parts of diamine hydrogen phosphate, 0.3-0.4 part of sodium dodecyl sulfate, 0.6-0.8 part of copper naphthenate, 1.4-1.8 parts of zinc oxide, 2-3 parts of modified silica sol, 2-4 parts of urea, 3-5 parts of calcium carbonate and 2-4 parts of red jade soil.
Preferably, the reactive diluent is a HELOXY modifier.
Preferably, the defoaming agent is a silicone defoaming agent.
Preferably, the photopolymerization initiator is 3- (methacryloyloxy) propyltrimethoxysilane, diethoxyacetophenone or a mixture thereof.
Preferably, the dispersing agent is prepared by mixing silicate and polyacrylate according to the proportion of 1: 3.
Preferably, the method comprises the following steps:
s1, mixing epoxy resin, polyvinyl fluoride, rock wool, glass wool, argil fiber, ammonium dihydrogen phosphate, diammonium hydrogen phosphate, sodium dodecyl sulfate, copper naphthenate, zinc oxide, modified silica sol, urea, calcium carbonate and red jade soil according to a predetermined ratio, heating to 30-35 ℃, stirring for 30-50min, and standing for 12-15h to obtain high-temperature resistant slurry;
s2, adding deionized water into a container, adding the reactive diluent and the latex into the container, heating to 25-30 ℃, and stirring for 120-150 min;
s3, filtering in S2, adding the filtered emulsion into an emulsifying machine, starting the emulsifying machine, adding the high-temperature-resistant slurry and the isophorone diisocyanate, stirring for 5-10min, adding the defoaming agent, the dispersing agent and the plasticizer, heating to 50-55 ℃, emulsifying for 35-50min, adding the photopolymerization initiator, stirring for 5-10min, standing for 2-3h, and cooling to obtain the high-performance polyurethane emulsion.
Compared with the prior art, the invention has the beneficial effects that:
the high-temperature-resistant slurry prepared by the invention can resist the high temperature of more than 600 ℃, is mixed into the water-based paint and is mixed with isophorone diisocyanate, the isophorone diisocyanate contains hydroxyl, and after the high-temperature-resistant slurry is ensured to be mixed, the non-hydrophilic curing agent component is emulsified, so that the components in the paint are fully mixed and are further stably combined together, and thus, the formed water-based paint has high strength, high hardness, difficult splitting, high flame retardance and good fireproof effect.
Detailed Description
Example 1:
the high-strength anti-corrosion high-temperature-resistant water-based paint is prepared from the following raw materials in parts by weight:
5.5 parts of isophorone diisocyanate, 3 parts of a photopolymerization initiator, 15 parts of a reactive diluent, 1.5 parts of a defoaming agent, 110 parts of a dispersing agent, 1.2 parts of a plasticizer, 15 parts of high-temperature resistant slurry and 150 parts of latex.
The active diluent is a HELOXY modifier, the defoaming agent is a silicone defoaming agent, the photopolymerization initiator is a mixture of 3- (methacryloyloxy) propyl trimethoxy silane and diethoxyacetophenone, and the dispersing agent is prepared by mixing silicate and polyacrylate according to a ratio of 1: 3.
The preparation method of the high-strength anti-corrosion high-temperature-resistant water-based paint comprises the following steps:
s1, mixing 17 parts of epoxy resin, 7 parts of polyvinyl fluoride, 13 parts of rock wool, 7 parts of glass wool, 7 parts of argil fiber, 4 parts of ammonium dihydrogen phosphate, 4 parts of diammonium hydrogen phosphate, 0.3 part of sodium dodecyl sulfate, 0.7 part of copper naphthenate, 1.6 parts of zinc oxide, 2.5 parts of modified silica sol, 3 parts of urea, 4 parts of calcium carbonate and 3 parts of red jade soil in proportion, heating to 33 ℃, stirring for 40min, and standing for 13h to obtain high-temperature resistant slurry;
s2, adding deionized water into a container, adding the reactive diluent and the latex into the container, heating to 27 ℃, and stirring for 130 min;
s3, filtering at S2, adding the filtered emulsion into an emulsifying machine, starting the emulsifying machine, adding the high-temperature-resistant slurry and the isophorone diisocyanate, stirring for 7min, adding the defoaming agent, the dispersing agent and the plasticizer, heating to 53 ℃, emulsifying for 40min, adding the photopolymerization initiator, stirring for 7min, standing for 2.5h, and cooling to obtain the high-temperature-resistant waterborne polyurethane emulsion.
Example 2:
the high-strength anti-corrosion high-temperature-resistant water-based paint is prepared from the following raw materials in parts by weight:
5 parts of isophorone diisocyanate, 2 parts of a photopolymerization initiator, 10 parts of an active diluent, 1 part of a defoaming agent, 100 parts of a dispersing agent, 1 part of a plasticizer, 10 parts of high-temperature resistant slurry and 100 parts of latex.
The active diluent is HELOXY modifier, the defoaming agent is organic silicon defoaming agent, the photopolymerization initiator is 3- (methacryloyloxy) propyl trimethoxy silane, and the dispersing agent is prepared by mixing silicate and polyacrylate according to the proportion of 1: 3.
The preparation method of the high-strength anti-corrosion high-temperature-resistant water-based paint comprises the following steps:
s1, mixing 15 parts of epoxy resin, 6 parts of polyvinyl fluoride, 12 parts of rock wool, 6 parts of glass wool, 6 parts of argil fiber, 3 parts of ammonium dihydrogen phosphate, 3 parts of diammonium hydrogen phosphate, 0.3 part of sodium dodecyl sulfate, 0.6 part of copper naphthenate, 1.4 parts of zinc oxide, 2 parts of modified silica sol, 2 parts of urea, 3 parts of calcium carbonate and 2 parts of red jade soil in proportion, heating to 30 ℃, stirring for 30min, and standing for 12h to obtain high-temperature resistant slurry;
s2, adding deionized water into a container, adding the reactive diluent and the latex into the container, heating to 25 ℃, and stirring for 120 min;
s3, filtering in S2, adding the filtered emulsion into an emulsifying machine, starting the emulsifying machine, adding the high-temperature-resistant slurry and the isophorone diisocyanate, stirring for 5min, adding the defoaming agent, the dispersing agent and the plasticizer, heating to 50 ℃, emulsifying for 35min, adding the photopolymerization initiator, stirring for 5min, standing for 2h, and cooling to obtain the high-temperature-resistant waterborne polyurethane emulsion.
Example 3:
the high-strength anti-corrosion high-temperature-resistant water-based paint is prepared from the following raw materials in parts by weight:
6 parts of isophorone diisocyanate, 5 parts of a photopolymerization initiator, 20 parts of a reactive diluent, 2 parts of a defoaming agent, 120 parts of a dispersing agent, 1.5 parts of a plasticizer, 20 parts of high-temperature resistant slurry and 200 parts of latex.
The active diluent is HELOXY modifier, the defoaming agent is organic silicon defoaming agent, the photopolymerization initiator is diethoxyacetophenone, and the dispersing agent is prepared by mixing silicate and polyacrylate according to the proportion of 1: 3.
The preparation method of the high-strength anti-corrosion high-temperature-resistant water-based paint comprises the following steps:
s1, 20 parts of epoxy resin, 8 parts of polyvinyl fluoride, 15 parts of rock wool, 8 parts of glass wool, 8 parts of argil fiber, 5 parts of ammonium dihydrogen phosphate, 5 parts of diammonium hydrogen phosphate, 0.4 part of sodium dodecyl sulfate, 0.8 part of copper naphthenate, 1.8 parts of zinc oxide, 3 parts of modified silica sol, 4 parts of urea, 5 parts of calcium carbonate and 4 parts of red jade soil are mixed in proportion, the temperature is raised to 35 ℃, the mixture is stirred for 50min, and the mixture is kept stand for 15h to prepare high-temperature resistant slurry;
s2, adding deionized water into a container, adding the reactive diluent and the latex into the container, heating to 30 ℃, and stirring for 150 min;
s3, filtering in S2, adding the filtered emulsion into an emulsifying machine, starting the emulsifying machine, adding the high-temperature-resistant slurry and the isophorone diisocyanate, stirring for 10min, adding the defoaming agent, the dispersing agent and the plasticizer, heating to 55 ℃, emulsifying for 50min, adding the photopolymerization initiator, stirring for 10min, standing for 3h, and cooling to obtain the high-temperature-resistant waterborne polyurethane emulsion.
During the construction process, the paint can be diluted by pure water or alcohol, such as water or alcohol, and the dilution ratio is about 20%. If pigment is added, the mixture is stirred uniformly and then filtered by a filter screen with more than 325 meshes. Standing for 30min for defoaming. The spraying can be directly carried out when the viscosity is tested to be 20s, the sprayed and dipped workpiece can be placed in a preheated oven which is stable at more than 150 ℃ for 5min for leveling and then is baked, the baking time is 30min, the thicker the paint film thickness is according to the film thickness adjustment, the longer the baking time is, the specific time is mastered during construction, and the paint film is required to be completely cured anyway.
The high-temperature-resistant slurry prepared by the invention can resist the high temperature of more than 600 ℃, is mixed into the water-based paint and is mixed with isophorone diisocyanate, the isophorone diisocyanate contains hydroxyl, and after the high-temperature-resistant slurry is ensured to be mixed, the non-hydrophilic curing agent component is emulsified, so that the components in the paint are fully mixed and are further stably combined together, and thus, the formed water-based paint has high strength, high hardness, difficult splitting, high flame retardance and good fireproof effect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The high-strength anti-corrosion high-temperature-resistant water-based paint is characterized by being prepared from the following raw materials in parts by weight:
5-6 parts of isophorone diisocyanate, 2-5 parts of a photopolymerization initiator, 10-20 parts of a reactive diluent, 1-2 parts of a defoaming agent, 100-120 parts of a dispersing agent, 1-1.5 parts of a plasticizer, 10-20 parts of high-temperature resistant slurry and 100-200 parts of latex.
2. The high-strength anti-corrosion high-temperature-resistant water-based paint according to claim 1, characterized in that the high-temperature-resistant slurry is prepared from the following raw materials in parts by weight:
15-20 parts of epoxy resin, 6-8 parts of polyvinyl fluoride, 12-15 parts of rock wool, 6-8 parts of glass wool, 6-8 parts of clay fiber, 3-5 parts of ammonium dihydrogen phosphate, 3-5 parts of diamine hydrogen phosphate, 0.3-0.4 part of sodium dodecyl sulfate, 0.6-0.8 part of copper naphthenate, 1.4-1.8 parts of zinc oxide, 2-3 parts of modified silica sol, 2-4 parts of urea, 3-5 parts of calcium carbonate and 2-4 parts of red jade soil.
3. The high strength anti-corrosion high temperature resistant waterborne coating of claim 1, wherein the reactive diluent is a HELOXY modifier.
4. The high-strength anticorrosive, high-temperature-resistant water-based paint according to claim 1, wherein the defoaming agent is a silicone defoaming agent.
5. The high-strength anticorrosion high-temperature-resistant water-based paint according to claim 1, wherein the photopolymerization initiator is 3- (methacryloyloxy) propyltrimethoxysilane, diethoxyacetophenone or a mixture thereof.
6. The high-strength anti-corrosion high-temperature-resistant water-based paint according to claim 1, wherein the dispersant is prepared by mixing silicate and polyacrylate according to a ratio of 1: 3.
7. The method for preparing the high-strength anticorrosion high-temperature-resistant water-based paint according to any one of claims 1 to 6, comprising the steps of:
s1, mixing epoxy resin, polyvinyl fluoride, rock wool, glass wool, argil fiber, ammonium dihydrogen phosphate, diammonium hydrogen phosphate, sodium dodecyl sulfate, copper naphthenate, zinc oxide, modified silica sol, urea, calcium carbonate and red jade soil according to a predetermined ratio, heating to 30-35 ℃, stirring for 30-50min, and standing for 12-15h to obtain high-temperature resistant slurry;
s2, adding deionized water into a container, adding the reactive diluent and the latex into the container, heating to 25-30 ℃, and stirring for 120-150 min;
s3, filtering in S2, adding the filtered emulsion into an emulsifying machine, starting the emulsifying machine, adding the high-temperature-resistant slurry and the isophorone diisocyanate, stirring for 5-10min, adding the defoaming agent, the dispersing agent and the plasticizer, heating to 50-55 ℃, emulsifying for 35-50min, adding the photopolymerization initiator, stirring for 5-10min, standing for 2-3h, and cooling to obtain the high-performance polyurethane emulsion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110410859.XA CN113337160A (en) | 2021-04-16 | 2021-04-16 | High-strength anti-corrosion high-temperature-resistant water-based paint and preparation method thereof |
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| CN202110410859.XA CN113337160A (en) | 2021-04-16 | 2021-04-16 | High-strength anti-corrosion high-temperature-resistant water-based paint and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115637073A (en) * | 2022-11-08 | 2023-01-24 | 河南兴安新型建筑材料有限公司 | Nano-coated aerated concrete reinforcement preservative and preparation method thereof |
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2021
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Application publication date: 20210903 |