CN112898875A - High-performance ozone-resistant environment-friendly anticorrosive paint and preparation method thereof - Google Patents
High-performance ozone-resistant environment-friendly anticorrosive paint and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- C09D7/60—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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- 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
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- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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
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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
- C08L2205/03—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
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Abstract
The invention discloses a high-performance ozone-resistant environment-friendly anticorrosive paint and a preparation method thereof, wherein the paint is prepared from the following raw materials in parts by weight: 50-80 parts of triglycidyl isocyanurate, 30-50 parts of modified epoxy resin, 10-20 parts of thermoplastic resin, 20-40 parts of acrylic emulsion, 15-50 parts of p-phenylenediamine derivative, 10-30 parts of modified silane coupling agent modified functional filler, 5-10 parts of functional auxiliary agent and 10-20 parts of solvent; the modified silane coupling agent is a carboxyl modified silane coupling agent, and the functional filler is mica powder, titanium dioxide, zinc oxide, ceramic powder and silicon dioxide in a mass ratio of 1:2:4:1: 3. The coating prepared by the invention has stronger mechanical strength, excellent water resistance, acid and alkali resistance, salt mist resistance, ozone resistance and ultraviolet resistance, and wide application prospect in the field of coatings.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a high-performance ozone-resistant environment-friendly anticorrosive coating and a preparation method thereof.
Background
The coating is a continuous film which is coated on the surface of a protected or decorated object and can form firm adhesion with the object to be coated, and is a viscous liquid which is prepared by taking resin, oil or emulsion as a main material, adding or not adding pigments and fillers, adding corresponding auxiliary agents and using organic solvent or water. At present, paint, plastic, adhesive, synthetic rubber and synthetic fiber become five kinds of synthetic materials. The coating industry belongs to the high and new technology industry, and the development level of the coating industry is one of the marks of the developed level of the national chemical industry.
As most coatings are added with organic compounds, volatile organic compounds are emitted when the coatings are dried to form films, and emitted organic solvents can seriously threaten the ecological environment and human health, the environment-friendly coatings are deeply favored by consumers.
In addition to the requirement of environmental protection, in order to adapt to different use environments, the high-performance coating needs to meet different use requirements, such as a strong corrosion environment under a high acid-base condition, a strong oxidizing gas ozone environment inside equipment of a flue gas desulfurization, denitrification and demercuration device through combination of gas phase oxidation and wet absorption, and ultraviolet resistance under high-strength ultraviolet exposure. Although most of the existing coatings can meet the above properties, the properties are only the surface properties of the coatings, and the problem of damage to the coatings cannot be avoided if the coatings which are used for a long time cannot maintain good weather resistance. In order to improve the durability of the coating, the functional filler is generally added into the coating to improve the performances of the coating, such as toughness, adhesion and the like, however, in the existing preparation method, the functional filler is generally mixed in the coating, although the functional filler can play the function of the filler to a certain extent, the filler is easy to precipitate after long-time exposure, and the comprehensive performance of the coating is reduced. Therefore, how to improve the long-term effect of the filler in the coating, maintain the durability of the original performance of the coating, and improve the using effect of the coating is still the main direction of research.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a high-performance ozone-resistant environment-friendly anticorrosive paint and a preparation method thereof.
In order to achieve the purpose, the invention provides the following technical scheme:
the high-performance ozone-resistant environment-friendly anticorrosive paint is prepared from the following raw materials in parts by weight: 50-80 parts of triglycidyl isocyanurate, 30-50 parts of modified epoxy resin, 10-20 parts of thermoplastic resin, 20-40 parts of acrylic emulsion, 15-50 parts of p-phenylenediamine derivative, 10-30 parts of modified silane coupling agent modified functional filler, 5-10 parts of functional auxiliary agent and 10-20 parts of solvent;
the modified silane coupling agent is a carboxyl modified silane coupling agent, and the functional filler is mica powder, titanium dioxide, zinc oxide, ceramic powder and silicon dioxide in a mass ratio of 1:2:4:1: 3.
Preferably, the modified epoxy resin is soluble polyether-ether-ketone modified epoxy resin.
Preferably, the thermoplastic resin is one or a combination of polytetrafluoroethylene, polystyrene or polyvinyl chloride.
Preferably, the p-phenylenediamine derivative is one or a combination of N, N '-di-2-naphthyl-p-phenylenediamine, N' -di-sec-butyl-p-phenylenediamine, N-isopropyl-N '-phenyl-p-phenylenediamine or N-cyclohexyl-N' -phenyl-p-phenylenediamine.
Further, the preparation method of the carboxyl modified silane coupling agent comprises the following steps: dissolving 15g of gamma-aminopropyltriethoxysilane, 10g of succinic anhydride and 5mL of triethylamine in 80mL of ethyl acetate, and heating and refluxing for 2-4h at 80 ℃; then, the organic solvent is removed by distillation under reduced pressure to obtain the carboxyl-modified silane coupling agent.
Preferably, the functional auxiliary agent is a dispersing agent, a defoaming agent and a thickening agent in a mass ratio of (1-3) to (1-2) to (2-4).
Preferably, the dispersing agent is one or a combination of bentonite, polyethylene glycol or sodium carboxymethyl cellulose; the defoaming agent is a combination of dimethyl silicone oil and phenethyl alcohol oleate or lauryl phenylacetate in a mass ratio of 1: 1; the thickening agent is one or a combination of more of polyacrylamide, cellulose ether or polyvinylpyrrolidone.
Preferably, the solvent is water, ethanol, dimethylformamide and ethyl acetate in a mass ratio of (1-4) to (3-7) to (2-5) to (2-8).
The preparation method of the high-performance ozone-resistant environment-friendly anticorrosive paint comprises the following steps of:
(1) weighing the raw materials in parts by weight;
(2) mixing and grinding the functional filler, then adding a solvent to disperse the functional filler, adding a dispersing agent, and continuously stirring and uniformly mixing; then adding a modified silane coupling agent with the mass 2 times that of the functional filler, and stirring and reacting for 1-2h at the temperature of 30-40 ℃ to obtain a mixture A;
(3) heating and softening triglycidyl isocyanurate, modified epoxy resin and thermoplastic resin, adding the softened triglycidyl isocyanurate, modified epoxy resin and thermoplastic resin into the mixture A, and continuously stirring and uniformly mixing at the temperature of 70-80 ℃ to obtain a mixture B;
(4) and adding the rest other raw materials into the mixture B, slowly raising the temperature to 40-50 ℃ under the stirring state, stirring for 1-3h, and then cooling to room temperature to obtain the high-performance ozone-resistant environment-friendly anticorrosive coating.
Has the advantages that: the invention provides a high-performance ozone-resistant environment-friendly anticorrosive coating and a preparation method thereof. Triglycidyl isocyanurate as a multifunctional glycidyl amine resin has good heat resistance and rigidity, and is compounded with thermoplastic resin, so that the toughness and the ageing resistance of the coating are further improved. The modified functional filler contains carboxyl which can be chemically bonded with triglycidyl isocyanurate, so that the comprehensive performance of the coating is improved, and the coating has a better use effect.
Detailed Description
The present invention is further described below with reference to specific examples, which are only exemplary and do not limit the scope of the present invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.
The preparation methods of the carboxyl-modified silane coupling agents described in the following examples and comparative examples include the following steps: dissolving 15g of gamma-aminopropyltriethoxysilane, 10g of succinic anhydride and 5mL of triethylamine in 80mL of ethyl acetate, and heating and refluxing for 2-4h at 80 ℃; then, the organic solvent is removed by distillation under reduced pressure to obtain the carboxyl-modified silane coupling agent.
Example 1
The high-performance ozone-resistant environment-friendly anticorrosive paint is prepared from the following raw materials in parts by weight: 50 parts of triglycidyl isocyanurate, 30 parts of modified epoxy resin, 10 parts of thermoplastic resin, 20 parts of acrylic emulsion, 15 parts of p-phenylenediamine derivative, 10 parts of modified silane coupling agent modified functional filler, 5 parts of functional auxiliary agent and 10 parts of solvent;
the modified silane coupling agent is a carboxyl modified silane coupling agent, and the functional filler is mica powder, titanium dioxide, zinc oxide, ceramic powder and silicon dioxide in a mass ratio of 1:2:4:1: 3.
The modified epoxy resin is soluble polyether-ether-ketone modified epoxy resin.
The thermoplastic resin is polytetrafluoroethylene.
The p-phenylenediamine derivative is N, N '-di-2-naphthyl p-phenylenediamine and N, N' -di-sec-butyl p-phenylenediamine in a mass ratio of 1: 1.
The functional auxiliary agent comprises a dispersing agent, a defoaming agent and a thickening agent in a mass ratio of 1:1: 1.
The dispersing agent is bentonite; the defoaming agent is dimethyl silicone oil and phenethyl alcohol oleate with the mass ratio of 1: 1; the thickening agent is polyacrylamide.
The solvent is water, ethanol, dimethylformamide and ethyl acetate in a mass ratio of 1:3:2: 2.
The preparation method of the high-performance ozone-resistant environment-friendly anticorrosive paint comprises the following steps:
(1) weighing the raw materials in parts by weight;
(2) mixing and grinding the functional filler, then adding a solvent to disperse the functional filler, adding a dispersing agent, and continuously stirring and uniformly mixing; then adding a modified silane coupling agent with the mass 2 times that of the functional filler, and stirring and reacting for 1h at the temperature of 30 ℃ to obtain a mixture A;
(3) heating and softening triglycidyl isocyanurate, modified epoxy resin and thermoplastic resin, adding the softened triglycidyl isocyanurate, modified epoxy resin and thermoplastic resin into the mixture A, and continuously stirring and uniformly mixing at the temperature of 70 ℃ to obtain a mixture B;
(4) and adding the rest of other raw materials into the mixture B, slowly raising the temperature to 40 ℃ under the stirring state, stirring for 1h, and then cooling to room temperature to obtain the high-performance ozone-resistant environment-friendly anticorrosive paint.
Example 2
The high-performance ozone-resistant environment-friendly anticorrosive paint is prepared from the following raw materials in parts by weight: 65 parts of triglycidyl isocyanurate, 40 parts of modified epoxy resin, 15 parts of thermoplastic resin, 30 parts of acrylic emulsion, 30 parts of p-phenylenediamine derivative, 20 parts of modified silane coupling agent modified functional filler, 7 parts of functional auxiliary agent and 15 parts of solvent;
the modified silane coupling agent is a carboxyl modified silane coupling agent, and the functional filler is mica powder, titanium dioxide, zinc oxide, ceramic powder and silicon dioxide in a mass ratio of 1:2:4:1: 3.
The modified epoxy resin is soluble polyether-ether-ketone modified epoxy resin.
The thermoplastic resin is polytetrafluoroethylene and polystyrene with the mass ratio of 1: 1.
The p-phenylenediamine derivative is N, N '-di-2-naphthyl p-phenylenediamine and N, N' -di-sec-butyl p-phenylenediamine in a mass ratio of 1: 1.
The functional auxiliary agents comprise a dispersing agent, a defoaming agent and a thickening agent in a mass ratio of 2:1:3.
The dispersing agent is bentonite and sodium carboxymethyl cellulose in a mass ratio of 1: 1; the defoaming agent is dimethyl silicone oil and phenethyl alcohol oleate with the mass ratio of 1: 1; the thickening agent is cellulose ether and polyvinylpyrrolidone in a mass ratio of 1: 1.
The solvent is water, ethanol, dimethylformamide and ethyl acetate in a mass ratio of 2:5:3: 6.
The preparation method of the high-performance ozone-resistant environment-friendly anticorrosive paint comprises the following steps:
(1) weighing the raw materials in parts by weight;
(2) mixing and grinding the functional filler, then adding a solvent to disperse the functional filler, adding a dispersing agent, and continuously stirring and uniformly mixing; then adding a modified silane coupling agent with the mass 2 times that of the functional filler, and stirring and reacting for 1.5h at the temperature of 35 ℃ to obtain a mixture A;
(3) heating and softening triglycidyl isocyanurate, modified epoxy resin and thermoplastic resin, adding the softened triglycidyl isocyanurate, modified epoxy resin and thermoplastic resin into the mixture A, and continuously stirring and uniformly mixing at the temperature of 75 ℃ to obtain a mixture B;
(4) and adding the rest other raw materials into the mixture B, slowly raising the temperature to 45 ℃ under the stirring state, stirring for 2 hours, and then cooling to room temperature to obtain the high-performance ozone-resistant environment-friendly anticorrosive paint.
Example 3
The high-performance ozone-resistant environment-friendly anticorrosive paint is prepared from the following raw materials in parts by weight: 70 parts of triglycidyl isocyanurate, 45 parts of modified epoxy resin, 18 parts of thermoplastic resin, 35 parts of acrylic emulsion, 40 parts of p-phenylenediamine derivative, 25 parts of modified silane coupling agent modified functional filler, 8 parts of functional auxiliary agent and 18 parts of solvent;
the modified silane coupling agent is a carboxyl modified silane coupling agent, and the functional filler is mica powder, titanium dioxide, zinc oxide, ceramic powder and silicon dioxide in a mass ratio of 1:2:4:1: 3.
The modified epoxy resin is soluble polyether-ether-ketone modified epoxy resin.
The thermoplastic resin is polyvinyl chloride.
The p-phenylenediamine derivative is N-isopropyl-N '-phenyl-p-phenylenediamine and N-cyclohexyl-N' -phenyl-p-phenylenediamine in a mass ratio of 1: 1.
The functional auxiliary agents comprise a dispersing agent, a defoaming agent and a thickening agent in a mass ratio of 2:1: 3.5.
The dispersing agent is polyethylene glycol; the defoaming agent is dimethyl silicone oil and lauryl phenylacetate with the mass ratio of 1: 1; the thickening agent is polyvinylpyrrolidone.
The solvent is water, ethanol, dimethylformamide and ethyl acetate in a mass ratio of 3:6:4: 7.
The preparation method of the high-performance ozone-resistant environment-friendly anticorrosive paint comprises the following steps:
(1) weighing the raw materials in parts by weight;
(2) mixing and grinding the functional filler, then adding a solvent to disperse the functional filler, adding a dispersing agent, and continuously stirring and uniformly mixing; then adding a modified silane coupling agent with the mass 2 times that of the functional filler, and stirring and reacting for 2.8 hours at the temperature of 38 ℃ to obtain a mixture A;
(3) heating and softening triglycidyl isocyanurate, modified epoxy resin and thermoplastic resin, adding the softened triglycidyl isocyanurate, modified epoxy resin and thermoplastic resin into the mixture A, and continuously stirring and uniformly mixing at the temperature of 78 ℃ to obtain a mixture B;
(4) and adding the rest other raw materials into the mixture B, slowly heating to 47 ℃ under the stirring state, stirring for 1-3h, and cooling to room temperature to obtain the high-performance ozone-resistant environment-friendly anticorrosive paint.
Example 4
The high-performance ozone-resistant environment-friendly anticorrosive paint is prepared from the following raw materials in parts by weight: 80 parts of triglycidyl isocyanurate, 50 parts of modified epoxy resin, 20 parts of thermoplastic resin, 40 parts of acrylic emulsion, 50 parts of p-phenylenediamine derivative, 30 parts of modified silane coupling agent modified functional filler, 10 parts of functional auxiliary agent and 20 parts of solvent;
the modified silane coupling agent is a carboxyl modified silane coupling agent, and the functional filler is mica powder, titanium dioxide, zinc oxide, ceramic powder and silicon dioxide in a mass ratio of 1:2:4:1: 3.
The modified epoxy resin is soluble polyether-ether-ketone modified epoxy resin.
The thermoplastic resin is polystyrene and polyvinyl chloride with the mass ratio of 1: 1.
The p-phenylenediamine derivative is N-isopropyl-N '-phenyl-p-phenylenediamine and N-cyclohexyl-N' -phenyl-p-phenylenediamine in a mass ratio of 1: 1.
The functional auxiliary agent comprises a dispersing agent, a defoaming agent and a thickening agent in a mass ratio of 3:2: 4.
The dispersing agent is bentonite; the defoaming agent is dimethyl silicone oil and lauryl phenylacetate with the mass ratio of 1: 1; the thickening agent is polyacrylamide.
The solvent is water, ethanol, dimethylformamide and ethyl acetate in a mass ratio of 4:7:5: 8.
The preparation method of the high-performance ozone-resistant environment-friendly anticorrosive paint comprises the following steps:
(1) weighing the raw materials in parts by weight;
(2) mixing and grinding the functional filler, then adding a solvent to disperse the functional filler, adding a dispersing agent, and continuously stirring and uniformly mixing; then adding a modified silane coupling agent with the mass 2 times that of the functional filler, and stirring and reacting for 2 hours at the temperature of 40 ℃ to obtain a mixture A;
(3) heating and softening triglycidyl isocyanurate, modified epoxy resin and thermoplastic resin, adding the softened triglycidyl isocyanurate, modified epoxy resin and thermoplastic resin into the mixture A, and continuously stirring and uniformly mixing at the temperature of 80 ℃ to obtain a mixture B;
(4) and adding the rest of other raw materials into the mixture B, slowly raising the temperature to 50 ℃ under the stirring state, stirring for 3 hours, and then cooling to room temperature to obtain the high-performance ozone-resistant environment-friendly anticorrosive paint.
Comparative example 1
Comparative example 1 differs from example 2 in that no triglycidyl isocyanurate is added to comparative example 1.
Comparative example 2
Comparative example 2 is different from example 2 in that comparative example 2 uses a functional filler that is not modified with a modified silane coupling agent.
The coatings prepared in examples 1 to 4 and comparative examples 1 to 2 were subjected to the following performance tests, wherein the tests for water resistance, acid resistance, alkali resistance, and salt spray resistance were carried out by coating the coatings on the surface of an interior wall according to the conventional procedures, and after the coatings were dried, cracks were formed in different parts of the wall surface by striking with external force, and the results of the tests are shown in table 1.
As can be seen from Table 1, the coating prepared by the invention has strong mechanical strength and excellent water resistance, acid and alkali resistance, salt mist resistance, ozone resistance and ultraviolet resistance. As can be seen from the comparison of the examples with the comparative examples, the unmodified functional filler and the absence of triglycidyl isocyanurate both reduce the overall performance of the coating, and the coating without triglycidyl isocyanurate has poorer performance than the coating with the unmodified functional filler. The triglycidyl isocyanurate coating mainly plays a role in improving the performance of the coating, and the modified functional filler contains carboxyl which can be chemically bonded with the triglycidyl isocyanurate to improve the comprehensive performance of the coating. The unmodified functional filler can be separated out after being used for a long time, so that the use effect of the coating is influenced.
TABLE 1
Claims (9)
1. The high-performance ozone-resistant environment-friendly anticorrosive paint is characterized by being prepared from the following raw materials in parts by weight: 50-80 parts of triglycidyl isocyanurate, 30-50 parts of modified epoxy resin, 10-20 parts of thermoplastic resin, 20-40 parts of acrylic emulsion, 15-50 parts of p-phenylenediamine derivative, 10-30 parts of modified silane coupling agent modified functional filler, 5-10 parts of functional auxiliary agent and 10-20 parts of solvent;
the modified silane coupling agent is a carboxyl modified silane coupling agent, and the functional filler is mica powder, titanium dioxide, zinc oxide, ceramic powder and silicon dioxide in a mass ratio of 1:2:4:1: 3.
2. The high-performance ozone-resistant environment-friendly anticorrosive paint as claimed in claim 1, wherein the modified epoxy resin is soluble polyether ether ketone modified epoxy resin.
3. The high-performance ozone-resistant environment-friendly anticorrosive paint as claimed in claim 1, wherein the thermoplastic resin is one or a combination of polytetrafluoroethylene, polystyrene or polyvinyl chloride.
4. The high-performance ozone-resistant environment-friendly anticorrosive paint as claimed in claim 1, wherein the p-phenylenediamine derivative is one or a combination of N, N '-di-2-naphthyl p-phenylenediamine, N' -di-sec-butyl p-phenylenediamine, N-isopropyl-N '-phenyl p-phenylenediamine or N-cyclohexyl-N' -phenyl p-phenylenediamine.
5. The high-performance ozone-resistant environment-friendly anticorrosive paint as claimed in claim 1, wherein the preparation method of the carboxyl-modified silane coupling agent comprises the following steps: dissolving 15g of gamma-aminopropyltriethoxysilane, 10g of succinic anhydride and 5mL of triethylamine in 80mL of ethyl acetate, and heating and refluxing for 2-4h at 80 ℃; then, the organic solvent is removed by distillation under reduced pressure to obtain the carboxyl-modified silane coupling agent.
6. The high-performance ozone-resistant environment-friendly anticorrosive paint as claimed in claim 1, wherein the functional additives are a dispersant, a defoamer and a thickener in a mass ratio of (1-3) to (1-2) to (2-4).
7. The high-performance ozone-resistant environment-friendly anticorrosive paint as claimed in claim 1, wherein the dispersant is one or a combination of several of bentonite, polyethylene glycol or sodium carboxymethylcellulose; the defoaming agent is a combination of dimethyl silicone oil and phenethyl alcohol oleate or lauryl phenylacetate in a mass ratio of 1: 1; the thickening agent is one or a combination of more of polyacrylamide, cellulose ether or polyvinylpyrrolidone.
8. The high-performance ozone-resistant environment-friendly anticorrosive paint as claimed in claim 1, wherein the solvent is water, ethanol, dimethylformamide and ethyl acetate in a mass ratio of (1-4) to (3-7) to (2-5) to (2-8).
9. The preparation method of the high-performance ozone-resistant environment-friendly anticorrosive paint as claimed in any one of claims 1 to 8, characterized by comprising the following steps:
(1) weighing the raw materials in parts by weight;
(2) mixing and grinding the functional filler, then adding a solvent to disperse the functional filler, adding a dispersing agent, and continuously stirring and uniformly mixing; then adding a modified silane coupling agent with the mass 2 times that of the functional filler, and stirring and reacting for 1-2h at the temperature of 30-40 ℃ to obtain a mixture A;
(3) heating and softening triglycidyl isocyanurate, modified epoxy resin and thermoplastic resin, adding the softened triglycidyl isocyanurate, modified epoxy resin and thermoplastic resin into the mixture A, and continuously stirring and uniformly mixing at the temperature of 70-80 ℃ to obtain a mixture B;
(4) and adding the rest other raw materials into the mixture B, slowly raising the temperature to 40-50 ℃ under the stirring state, stirring for 1-3h, and then cooling to room temperature to obtain the high-performance ozone-resistant environment-friendly anticorrosive coating.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117603613A (en) * | 2023-12-05 | 2024-02-27 | 泰伦特生物工程股份有限公司 | Vehicle chassis antirust agent and preparation method thereof |
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| CN117603613A (en) * | 2023-12-05 | 2024-02-27 | 泰伦特生物工程股份有限公司 | Vehicle chassis antirust agent and preparation method thereof |
| CN117603613B (en) * | 2023-12-05 | 2024-05-31 | 泰伦特生物工程股份有限公司 | Vehicle chassis antirust agent and preparation method thereof |
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