CN108504260B - Radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating - Google Patents
Radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating Download PDFInfo
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- CN108504260B CN108504260B CN201810453047.1A CN201810453047A CN108504260B CN 108504260 B CN108504260 B CN 108504260B CN 201810453047 A CN201810453047 A CN 201810453047A CN 108504260 B CN108504260 B CN 108504260B
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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
- C09D163/10—Epoxy resins modified by unsaturated 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
- 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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- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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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
- C08K2003/2237—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
- C08K3/34—Silicon-containing compounds
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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
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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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
- C08K3/40—Glass
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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
- C08K7/00—Use of ingredients characterised by shape
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- Wood Science & Technology (AREA)
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Abstract
The invention discloses a radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating. The anticorrosive paint consists of a vinyl ester slurry component A and a curing raw material component B, wherein the component A consists of vinyl ester resin, titanium dioxide, mica powder, fumed silica, styrene, a rheological additive, a defoaming agent, glass flakes and the like, and the component B consists of an accelerator, an initiator and a polyurethane curing agent. The paint provided by the invention is introduced in a double crosslinking mode, so that the paint has the advantages of strong medium permeability resistance, good radiation resistance, good corrosion resistance, outstanding strong acid resistance and the like, is simple in preparation process, easy in raw material acquisition and stable in product performance, and is suitable for large-scale industrial production.
Description
Technical Field
The invention relates to a heavy anti-corrosion coating with normal temperature curing, double crosslinking and good low-shrinkage air-drying property, belongs to the field of coatings, and particularly relates to a radiation-resistant strong acid-resistant double-curing heavy anti-corrosion coating.
Background
The vinyl ester resin is a thermosetting resin initiated by free radicals prepared by the reaction of epoxy resin and methacrylic acid, the two ends of the molecule of the thermosetting resin contain vinyl groups, and the middle framework is an epoxy resin structure, so that the thermosetting resin has the excellent mechanical property, corrosion resistance and high temperature resistance of the epoxy resin, and also has the easy flowability and quick curing property of unsaturated polyester resin. The methacrylic group at the end of the molecular bond also improves its resistance to solar aging.
The existing heavy-duty anticorrosive paint is usually epoxy polyurethane type, is double-component single-curing crosslinking type, has better corrosion resistance, but has poor strong acid resistance of a paint film; the pure vinyl ester resin has a good anticorrosion effect, but has the defects of poor air-drying property, large curing shrinkage rate, large paint film brittleness and the like, so that the prepared paint has similar defects, and the application of the vinyl ester resin in the heavy-duty anticorrosion industry is limited. The invention aims to provide a radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating.
Disclosure of Invention
The invention aims to provide a radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating which is cured by double crosslinking of unsaturated double bonds and a polyurethane curing agent, has the advantages of strong medium permeability resistance, good radiation resistance, good corrosion resistance, outstanding strong acid resistance and the like, overcomes the defects of poor air-drying property and large curing shrinkage rate of the original vinyl ester heavy-duty anticorrosive coating, and adjusts the performance of a coating film by using the curing agent.
In order to achieve the purpose, the invention provides a radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating, which is characterized in that: the composition comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 3: 1-8: 1;
the component A comprises the following raw materials in parts by mass:
the component B comprises the following raw materials in parts by mass:
8-15 parts of initiator
5-12 parts of accelerator
60-90 parts of a curing agent.
The using amount of the butyl acetate meets the construction requirement;
the vinyl ester resin is prepared from the following raw materials in parts by mass:
the rheological additive in the component A is BYK-410; the defoaming agent is BYK-054; the solvent is styrene.
The initiator in the component B is methyl ethyl ketone peroxide; the accelerant is cobalt naphthenate; the curing agent is a polyurethane curing agent.
The catalyst in the vinyl ester resin is N-N dimethylaniline.
The polymerization inhibitor in the vinyl ester resin is hydroquinone.
The preparation method of the component A is characterized by comprising the following steps: weighing vinyl ester resin, titanium dioxide, mica powder, fumed silica, a solvent, a rheological additive and a defoaming agent according to the weight, adding the mixture into an enamel drawing cylinder, uniformly stirring at a high speed to form a mixed material, grinding and rolling the mixed material into slurry, controlling the fineness to be below 30 mu m by using a scraper blade fineness meter, adding the weighed glass flakes while stirring, and uniformly dispersing to obtain the component A.
The preparation method of the radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating comprises the following steps:
(1) adding epoxy resin, a catalyst and a polymerization inhibitor into a reaction kettle, stirring for dissolving, heating to 80 ℃, adding methacrylic acid, heating to 110-130 ℃, carrying out heat preservation reaction until the acid value reaches less than 10mgKOH/g to obtain vinyl ester, cooling, diluting with styrene, wherein the mass of the diluted solid accounts for 60-70% of the total mass percent, and thus obtaining the vinyl ester resin;
(2) adding the prepared vinyl ester resin, titanium dioxide, mica powder, fumed silica, a rheological additive, a defoaming agent and a solvent into a drawing cylinder, stirring at a high speed, dispersing uniformly, rolling to the fineness of below 30 mu m by using a sand mill, adding glass flakes, and stirring until the glass flakes are dispersed uniformly to obtain a component A;
(3) mixing an accelerator, an initiator and a curing agent, and uniformly stirring to obtain a component B;
(5) before use, the component A and the component B are mixed according to the mass ratio of 3: 1-8: 1, uniformly mixing and stirring, diluting to construction viscosity by using butyl acetate, and standing for 15min to obtain the paint.
The application method of the radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive paint comprises the steps of mixing the component A and the component B uniformly before use, diluting the mixture to construction viscosity by using butyl acetate, standing the diluted mixture for 15min, and then performing brushing, spraying and roller coating construction.
The invention discloses a radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating, which has the beneficial effects that: the anticorrosive paint uses self-made vinyl ester resin as a base material, titanium white, mica, glass flakes, gas-phase silica and the like as pigments and fillers, peroxide as an initiator, cobalt naphthenate as an accelerator and a polyurethane curing agent as a two-component curing crosslinking agent, overcomes the defects of poor air-drying property, large curing shrinkage rate, brittleness and the like of the conventional vinyl ester glass flake heavy anticorrosive paint, and has the advantages of complete curing, strong medium permeability resistance, excellent wear resistance and the like. And the preparation process is simple, the raw materials are easy to obtain, the performance is stable, and the method is suitable for large-scale industrial production.
Detailed Description
Example 1
The invention relates to a preparation method of a radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating, which comprises the following steps:
(1) adding 46.6kg of epoxy resin, 0.3kg of catalyst and 0.06kg of polymerization inhibitor into a reaction kettle, stirring for dissolving, heating to 80 ℃, adding 17.7kg of methacrylic acid, heating to 110-130 ℃, carrying out heat preservation reaction until the acid value reaches a proper value, cooling to 80 ℃, adding 34.8kg of styrene diluent, and uniformly stirring to obtain vinyl ester resin;
(2) adding 57.5kg of vinyl ester resin, 12.7kg of titanium dioxide, 3.8kg of mica powder, 2.4kg of fumed silica and 4.7kg of styrene into an enamel cylinder, stirring at high speed, dispersing uniformly, grinding on a conical mill until the fineness is below 30 mu m, adding 0.3kg of rheological additive and 0.17kg of defoaming agent, adding 7kg of glass flakes while stirring, stirring until the mixture is uniformly dispersed, and obtaining a component A;
(3) adding 3kg of initiator and 2kg of accelerator into a drawn cylinder, and uniformly stirring and mixing to obtain a first component of the radiation-resistant, strong acid-resistant and dual-curing heavy-duty anticorrosive coating;
(4) 25kg of polyurethane curing agent is individually packaged to be used as a second component of the radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating;
(5) before use, the component A and the component B consisting of the component B I and the component B II are mixed and stirred uniformly, the mass ratio of the component A to the component B is 3:1, the component A and the component B are diluted by butyl acrylate to the construction viscosity, the mixture is kept stand for 15min, and the coating can be applied by brushing, spraying and roller coating.
The preparation process of the examples 2-3 is the same as that of the example 1, and the formula is shown in the following table:
(1) formulation of the vinyl ester resin: unit: kg of
(2) The formula of the component A of the radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating comprises the following components: unit: kg of
(3) The formula of the component B of the radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating comprises the following components: unit: kg of
(4) The formula of the component B of the radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating comprises the following components: unit: kg of
(5) The formula of the second component of the radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating is as follows: unit: kg of
(6) Before use, the component A and the component B are mixed and stirred uniformly according to a certain mass ratio, diluted by butyl acrylate to the construction viscosity, kept stand for 15min, and can be brushed, sprayed and rolled for construction.
TABLE 1 technical indices of vinyl anticorrosive coatings
TABLE 2 corrosion data of vinyl paint films against partial liquid media
Claims (6)
1. A radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating is characterized in that: the composition comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 3: 1-8: 1;
the component A comprises the following raw materials in parts by mass:
the component B comprises the following raw materials in parts by mass:
8-15 parts of initiator
5-12 parts of accelerator
60-90 parts of a curing agent;
the using amount of the butyl acetate meets the construction requirement;
the vinyl ester resin is prepared from the following raw materials in parts by mass:
the rheological additive in the component A is BYK-410; the defoaming agent is BYK-054; the solvent is styrene;
in the component B, the initiator is methyl ethyl ketone peroxide, the accelerator is cobalt naphthenate, and the curing agent is a polyurethane curing agent.
2. The radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating according to claim 1, characterized in that: the catalyst in the vinyl ester resin is N-N dimethylaniline.
3. The radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating according to claim 1, characterized in that: the polymerization inhibitor in the vinyl ester resin is hydroquinone.
4. The radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating according to claim 1, characterized in that: the preparation method of the component A comprises the steps of weighing vinyl ester resin, titanium dioxide, mica powder, fumed silica, a solvent, a rheological additive and a defoaming agent according to the amount, adding the mixture into an enamel drawing cylinder, uniformly stirring at a high speed to form a mixed material, grinding and rolling the mixed material into slurry, controlling the fineness to be below 30 mu m by using a scraper blade fineness meter, adding the weighed glass flakes while stirring, and uniformly stirring until the glass flakes are uniformly dispersed to obtain the component A.
5. The preparation method of the radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating according to any one of claims 1 to 4, characterized in that: the method comprises the following implementation steps:
(1) adding epoxy resin, a catalyst and a polymerization inhibitor into a reaction kettle, stirring for dissolving, heating to 80 ℃, adding methacrylic acid, heating to 110-130 ℃, carrying out heat preservation reaction until the acid value reaches less than 10mgKOH/g to obtain vinyl ester, cooling, diluting with styrene, wherein the mass of the diluted solid accounts for 60-70% of the total mass percent, and thus obtaining the vinyl ester resin;
(2) adding the prepared vinyl ester resin, titanium dioxide, mica powder, fumed silica, a rheological additive, a defoaming agent and a solvent into a drawing cylinder, stirring at a high speed, dispersing uniformly, rolling to the fineness of below 30 mu m by using a sand mill, adding glass flakes, and stirring until the glass flakes are dispersed uniformly to obtain a component A;
(3) mixing an accelerator, an initiator and a curing agent, and uniformly stirring to obtain a component B;
(5) before use, the component A and the component B are mixed according to the mass ratio of 3: 1-8: 1, uniformly mixing and stirring, diluting to construction viscosity by using butyl acetate, and standing for 15min to obtain the paint.
6. The use method of the radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating according to any one of claims 1 to 4, characterized in that: before use, the component A and the component B are mixed and stirred uniformly, diluted to construction viscosity by butyl acetate, and subjected to brush coating, spray coating and roller coating construction after standing for 15 min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810453047.1A CN108504260B (en) | 2018-05-14 | 2018-05-14 | Radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating |
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| CN201810453047.1A CN108504260B (en) | 2018-05-14 | 2018-05-14 | Radiation-resistant strong acid-resistant dual-curing heavy-duty anticorrosive coating |
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| CN108504260B true CN108504260B (en) | 2021-01-12 |
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| CN112459434A (en) * | 2020-11-03 | 2021-03-09 | 苏州恒祥环境工程有限公司 | Manufacturing process of terrace with heavy corrosion resistance |
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| CN101260274B (en) * | 2007-12-21 | 2010-10-20 | 华东理工大学华昌聚合物有限公司 | Technique for preparing two-component epoxy vinyl ester resin paint |
| CN101760115A (en) * | 2009-11-30 | 2010-06-30 | 北方涂料工业研究设计院 | Preparation method of low shrink air dry vinyl ester heavy-duty anti-corrosive paint |
| CN102321424A (en) * | 2011-08-22 | 2012-01-18 | 华南理工大学 | Preparation method for light-heat dual-cured woodware UV varnish coating |
| CN104497804A (en) * | 2014-12-22 | 2015-04-08 | 湖州南浔双林振森实木加工厂 | Method for preparing dually cured coating |
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