CN112795222A - Anti-corrosion composite material and preparation method and application thereof - Google Patents
Anti-corrosion composite material and preparation method and application thereof Download PDFInfo
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- CN112795222A CN112795222A CN202011585902.8A CN202011585902A CN112795222A CN 112795222 A CN112795222 A CN 112795222A CN 202011585902 A CN202011585902 A CN 202011585902A CN 112795222 A CN112795222 A CN 112795222A
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
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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
- C09D5/18—Fireproof paints including high temperature resistant 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
- 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
- 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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
Abstract
The invention discloses an anti-corrosion composite material and a preparation method and application thereof. The composition comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 60-80 parts of fluorosilicone resin anticorrosive paint, 5-20 parts of nano filler and 0.5-3 parts of catalyst; the component B comprises the following raw materials in parts by weight: 15-30 parts of epoxy resin, 0.5-5 parts of silane coupling agent and 0.5-3 parts of curing agent. The composition has the characteristics of excellent corrosion resistance, high and low temperature resistance, good flexibility, high safety, quick and simple construction and the like.
Description
Technical Field
The invention belongs to the field of anticorrosive materials, and particularly relates to an anticorrosive composite material and a preparation method and application thereof.
Background
The chemical industry is one of the most serious corrosion industries, and acid substances containing elements such as sulfur, nitrogen and the like with high water content are easily generated in the processing process to corrode metal components in contact with the acid substances. The corrosion easily causes the thinning and penetration of equipment, pipelines and supports, further causes accidents, not only hurts the safety of personnel and causes property loss, but also causes great influence on the society and the environment.
The use of anticorrosive coatings is one of the main means for corrosion prevention in the chemical industry, however, the anticorrosive coatings in the prior art mainly adopt the traditional general coating varieties, have poor anticorrosive effect and can not meet the requirement of the industry on the anticorrosive performance of chemical equipment.
Disclosure of Invention
The invention provides an anti-corrosion composition which comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 60-80 parts of fluorosilicone resin anticorrosive paint, 5-20 parts of nano filler and 0.5-3 parts of catalyst;
the component B comprises the following raw materials in parts by weight: 15-30 parts of epoxy resin, 0.5-5 parts of silane coupling agent and 0.5-3 parts of curing agent.
According to the embodiment of the invention, the fluorosilicone resin anticorrosive paint is a material formed by degrading fluorosilicone resin and introducing isocyanate groups.
Preferably, the parts by weight of the fluorosilicone resin anticorrosive paint in component A are 65-75 parts, such as 62 parts, 64 parts, 66 parts, 70 parts, 72 parts and 78 parts.
According to an embodiment of the present invention, the nano filler is selected from one, two or three of nano titanium dioxide, nano silica and nano zinc oxide.
Preferably, the weight parts of the nanofiller in component a are 10-16 parts, such as 7 parts, 9 parts, 12 parts, 15 parts, 18 parts.
According to an embodiment of the invention, the catalyst consists of hexachloroplatinic acid and dimethylvinylsiloxanyl-terminated poly (methyl-3, 3, 3-trifluoropropylsiloxane) in a weight ratio of 1 (20-40).
Preferably, the weight part of the catalyst in component A is 1-2.5 parts, such as 1.5 parts, 2 parts.
According to an embodiment of the invention, the epoxy resin has an epoxy value of 0.42 to 0.54, such as 0.45 to 0.51.
According to an embodiment of the invention, the epoxy resin is a low molecular weight epoxy resin, for example one, two or more of E-44, E-51, F-44 and F-51.
Preferably, the weight parts of the epoxy resin in component B are 20-28 parts, such as 16 parts, 18 parts, 22 parts, 25 parts.
According to an embodiment of the present invention, the silane coupling agent may be selected from gamma-glycidoxypropyltrimethoxysilane and/or methacryloxypropyltrimethoxysilane.
Preferably, the silane coupling agent is present in component B in an amount of 1 to 4 parts by weight, for example 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4.5 parts.
According to an embodiment of the present invention, the curing agent may be selected from amine-based curing agents, for example, one, two or more selected from the group consisting of trimethylene triamine, triethylene tetramine, tripropylene tetramine, tetraethylene pentamine, 1, 4-cyclohexanediamine, 4' -methylenebiscyclohexylamine, isophoronediamine, and polyetherdiamine.
Preferably, the curing agent is present in component B in an amount of 1 to 2.5 parts by weight, for example 0.75 parts, 1.5 parts, 2 parts, 2.5 parts, 2.8 parts.
According to an embodiment of the present invention, the component a and/or the component B may further contain one, two or more of an anti-sagging/anti-settling agent, a solvent, a plasticizer, a coloring pigment, an antifoaming agent, an anti-fouling agent, and the like.
According to an embodiment of the present invention, the anti-sagging/anti-settling agent may be selected from oxidized polyethylene wax and/or polyamide wax.
According to an embodiment of the present invention, the solvent may be selected from one, two or more of methoxypropanol, butyl acetate, butanol, isopropanol, cyclohexanone, acetone and methyl isobutyl ketone.
According to an embodiment of the present invention, the plasticizer may be selected from petroleum resins and/or xylene resins that are solid at normal temperature.
According to an embodiment of the present invention, the color pigment may be one, two or more selected from zinc phosphate, aluminum tripolyphosphate, zinc aluminum phosphate, zinc calcium phosphomolybdate, titanium white, red iron oxide, yellow iron oxide, carbon black, and the like.
According to an embodiment of the present invention, the defoaming agent may be selected from a silicon-based defoaming agent, a polyether-based defoaming agent, and/or a polyester-based defoaming agent.
According to an embodiment of the present invention, the above anti-sagging/anti-settling agent, solvent, plasticizer, coloring pigment, antifoaming agent, anti-fouling agent, etc. are used in amounts known in the art, for example, in an amount of 0.1 to 10 parts by weight, preferably 0.5 to 5 parts by weight, in the component a or the component B.
According to an exemplary embodiment of the invention, the corrosion protection composition comprises a component a and a component B, wherein the component a comprises the following raw materials in parts by weight: 63 parts of fluorosilicone resin anticorrosive paint, 8 parts of nano silicon dioxide and 1 part of catalyst;
the fluorosilicone resin anticorrosive paint is a material formed by degrading fluorosilicone resin and introducing isocyanate groups;
the catalyst consists of hexachloroplatinic acid and dimethylvinylsiloxanyl-terminated poly (methyl-3, 3, 3-trifluoropropylsiloxane) in a weight ratio of 1: 30;
the component B comprises the following raw materials in parts by weight: epoxy resin F-4420 parts, gamma-glycidoxypropyltrimethoxysilane 2 parts, tetraethylenepentamine 1 part and 1, 4-cyclohexanediamine 1 part.
According to an exemplary embodiment of the invention, the corrosion protection composition comprises a component a and a component B, wherein the component a comprises the following raw materials in parts by weight: 73 parts of fluorosilicone resin anticorrosive paint, 9 parts of nano silicon dioxide and 1.5 parts of catalyst;
the fluorosilicone resin anticorrosive paint is a material formed by degrading fluorosilicone resin and introducing isocyanate groups;
the catalyst consists of hexachloroplatinic acid and dimethylvinylsiloxanyl-terminated poly (methyl-3, 3, 3-trifluoropropylsiloxane) in a weight ratio of 1: 36;
the component B comprises the following raw materials in parts by weight: epoxy resin E-4410 parts, epoxy resin E-5110 parts, gamma-glycidoxypropyltrimethoxysilane 2 parts, tetraethylenepentamine 1 part and 1, 4-cyclohexanediamine 1 part.
According to an exemplary embodiment of the invention, the corrosion protection composition comprises a component a and a component B, wherein the component a comprises the following raw materials in parts by weight: 70 parts of fluorosilicone resin anticorrosive paint, 5 parts of nano silicon dioxide, 5 parts of nano zinc oxide and 2 parts of catalyst;
the fluorosilicone resin anticorrosive paint is a material formed by degrading fluorosilicone resin and introducing isocyanate groups;
the catalyst consists of hexachloroplatinic acid and dimethylvinylsiloxanyl-terminated poly (methyl-3, 3, 3-trifluoropropylsiloxane) in a weight ratio of 1: 32;
the component B comprises the following raw materials in parts by weight: epoxy resin E-4414 parts, epoxy resin F-5116 parts, gamma-glycidoxypropyltrimethoxysilane 2 parts, 4' -methylenedicyclohexylamine 2.5 parts and aluminum tripolyphosphate 2 parts.
The invention also provides a preparation method of the anti-corrosion composition, which comprises the following steps: mixing the raw materials of the component A according to the proportion to prepare a component A; mixing the raw materials of the component B according to the proportion to prepare a component B; and (5) standby.
The invention also provides an anti-corrosion coating which is obtained by the anti-corrosion combination and solidification.
According to an embodiment of the present invention, the thickness of the corrosion protection coating may be 80-200 μm, for example 100-180 μm.
According to an embodiment of the invention, the corrosion protection coating is cured on a metal surface or a concrete surface.
The invention also provides a preparation method of the anti-corrosion coating, which comprises the following steps:
(1) mixing the raw materials of the component A according to the proportion to prepare a component A; mixing the raw materials of the component B according to the proportion to prepare a component B; standby;
(2) applying the component A on the surface to be constructed and curing the component A, and then applying the component B on the surface of the cured component A and curing the component B to obtain the anticorrosive coating;
the weight ratio of the component B of the component A is 1 (1-2).
Preferably, the weight ratio of the component A to the component B is 1 (1.2-1.6).
According to an embodiment of the present invention, the applying may be at least one of spraying, dipping, rolling, brushing, and the like.
The invention also provides application of the anti-corrosion composition and/or the anti-corrosion coating in corrosion prevention of a desulfurizing tower, a flue gas cooling tower, a regeneration tower, a comprehensive recovery tower, a chimney (flue) lining of a thermal power plant, a cooling tower, energy storage pool concrete and the like.
Preferably, the corrosion prevention of the desulfurization tower is corrosion prevention of a wet desulfurization tower.
In the conventional manner, although a protective layer is formed, the etching medium tends to bypass the layer and start etching from the inside. The invention adopts the high-permeability anticorrosive material to fill the surface of the metal, fills the pits on the surface of the metal, then the protective material realizes the firm combination with the metal, and finally forms a dense and windproof compact surface layer.
The anticorrosive material can also react with moisture hidden in the metal surface conveying structure to play a role in cleaning the internal structure.
The invention has the beneficial effects that:
the anticorrosive composite material contains fluorosilicone resin anticorrosive paint, has a corrosion-resistant and heat-resistant main chain, and micromolecules and active isocyanate (NCO) groups which are convenient to permeate through the surface of metal, and can be quickly subjected to crosslinking reaction in the air to form an interpenetrating network (PIN) and be cured under the action of a catalyst after being applied to the surface to be treated, so that a first protective layer is formed. And then the layer formed by curing the component B is sealed to obtain the coating with excellent corrosion resistance. The method has the following advantages:
1) the corrosion resistance is good: the corrosion prevention effect is durable, and the paint can resist various known corrosive acids, alkalis, salts and the like;
2) good high and low temperature resistance: the temperature resistance range is-50 to +400 ℃, and the high-temperature-resistant paint can be used for a long time at the high temperature of 300 ℃.
3) The flexibility is good: the coating has high flexibility and good wear resistance.
4) The safety is high: is not flammable and safer when encountering fire.
5) The construction is quick and simple: the coating mode is various, the spraying, dipping, rolling and brushing modes can be adopted, and the equipment investment is small.
6) The rust removal process is simple: the rust removal grade reaches St 2. For severe rust, the rust conversion agent can be used in combination with the rust conversion agent, and the rust conversion agent can be directly coated after being dried. The surface with slight rust can be directly brushed, and the complicated rust removal process is reduced.
7) The construction time is short, efficient: the coating does not need to be prepared, the curing time is short, and the construction is rapid.
8) The maintenance is convenient: if local corrosion occurs, the corrosion part can be protected again.
9) The adhesive force with protected materials is good: the detection level "level 0", i.e., the highest level. The product has strong adhesive force to polar materials (such as steel, cement, wood, concrete, glass and the like).
10) The coating after complete curing is non-toxic and harmless: after the coating is completely cured, the coating is sanitary and safe, does not have physiological toxicity, and can be detected by drinking water sanitary standard.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to specific embodiments. It is to be understood that the following examples are only illustrative and explanatory of the present invention and should not be construed as limiting the scope of the present invention. All the technologies realized based on the above-mentioned contents of the present invention are covered in the protection scope of the present invention.
Unless otherwise indicated, the raw materials and reagents used in the following examples are all commercially available products or can be prepared by known methods.
Example 1
The anti-corrosion composition comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 63 parts of fluorosilicone resin anticorrosive paint, 8 parts of nano silicon dioxide and 1 part of catalyst;
the fluorosilicone resin anticorrosive paint is a material formed by degrading fluorosilicone resin and introducing isocyanate groups;
the catalyst consists of hexachloroplatinic acid and dimethylvinylsiloxanyl-terminated poly (methyl-3, 3, 3-trifluoropropylsiloxane) in a weight ratio of 1: 30;
the component B comprises the following raw materials in parts by weight: epoxy resin F-4420 parts, gamma-glycidoxypropyltrimethoxysilane 2 parts, tetraethylenepentamine 1 part and 1, 4-cyclohexanediamine 1 part.
Uniformly spraying the component A on the surface of the steel pipe and curing, and then uniformly spraying the component B on the surface of the cured component A and curing to obtain an anti-corrosion coating with the thickness of 160 mu m; component B of component a was applied at a weight ratio of 1:1.
Example 2
The anti-corrosion composition comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 73 parts of fluorosilicone resin anticorrosive paint, 9 parts of nano silicon dioxide and 1.5 parts of catalyst;
the fluorosilicone resin anticorrosive paint is a material formed by degrading fluorosilicone resin and introducing isocyanate groups;
the catalyst consists of hexachloroplatinic acid and dimethylvinylsiloxanyl-terminated poly (methyl-3, 3, 3-trifluoropropylsiloxane) in a weight ratio of 1: 36;
the component B comprises the following raw materials in parts by weight: epoxy resin E-4410 parts, epoxy resin E-5110 parts, gamma-glycidoxypropyltrimethoxysilane 2 parts, tetraethylenepentamine 1 part and 1, 4-cyclohexanediamine 1 part.
Uniformly spraying the component A on the surface of the steel pipe and curing, and then uniformly spraying the component B on the surface of the cured component A and curing to obtain an anti-corrosion coating with the thickness of 120 mu m; component B of component a was applied at a weight ratio of 1: 1.3.
Example 3
The anti-corrosion composition comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 70 parts of fluorosilicone resin anticorrosive paint, 5 parts of nano silicon dioxide, 5 parts of nano zinc oxide and 2 parts of catalyst;
the fluorosilicone resin anticorrosive paint is a material formed by degrading fluorosilicone resin and introducing isocyanate groups;
the catalyst consists of hexachloroplatinic acid and dimethylvinylsiloxanyl-terminated poly (methyl-3, 3, 3-trifluoropropylsiloxane) in a weight ratio of 1: 32;
the component B comprises the following raw materials in parts by weight: epoxy resin E-4414 parts, epoxy resin F-5116 parts, gamma-glycidoxypropyltrimethoxysilane 2 parts, 4' -methylenedicyclohexylamine 2.5 parts and aluminum tripolyphosphate 2 parts.
Uniformly rolling and coating the component A on the surface of the steel pipe and curing, and then uniformly rolling and coating the component B on the surface of the cured component A and curing to obtain an anti-corrosion coating with the thickness of 180 mu m; component B of component a was applied at a weight ratio of 1: 1.6.
Tests show that the performances of the anti-corrosion coatings prepared in examples 1 to 3 are shown in table 1, and it can be seen that the anti-corrosion composition of the invention can be used for corrosion prevention of desulfurization towers, flue gas cooling towers, regeneration towers, comprehensive recovery towers, chimney (flue) linings of thermal power plants, cooling towers, concrete of energy storage pools and the like.
TABLE 1
The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The anti-corrosion composition is characterized by comprising a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 60-80 parts of fluorosilicone resin anticorrosive paint, 5-20 parts of nano filler and 0.5-3 parts of catalyst;
the component B comprises the following raw materials in parts by weight: 15-30 parts of epoxy resin, 0.5-5 parts of silane coupling agent and 0.5-3 parts of curing agent.
2. The anticorrosive composition according to claim 1, wherein the fluorosilicone resin anticorrosive coating is a material formed by degrading a fluorosilicone resin and then introducing an isocyanate group;
preferably, the weight part of the fluorosilicone resin anticorrosive paint in the component A is 65-75 parts;
preferably, the nano filler is selected from one, two or three of nano titanium dioxide, nano silicon dioxide and nano zinc oxide;
preferably, the weight part of the nano filler in the component A is 10-16 parts;
preferably, the catalyst consists of hexachloroplatinic acid and dimethylvinylsiloxanyl-terminated poly (methyl-3, 3, 3-trifluoropropylsiloxane) in a weight ratio of 1 (20-40);
preferably, the weight part of the catalyst in the component A is 1-2.5 parts.
3. The corrosion-inhibiting composition of claim 1 or 2, wherein the epoxy resin has an epoxy value of 0.42 to 0.54;
preferably, the epoxy resin is a low molecular weight epoxy resin, such as one, two or more of E-44, E-51, F-44 and F-51;
preferably, the weight part of the epoxy resin in the component B is 20-28 parts;
preferably, the silane coupling agent is selected from gamma-glycidoxypropyltrimethoxysilane and/or methacryloxypropyltrimethoxysilane;
preferably, the weight part of the silane coupling agent in the component B is 1-4 parts;
preferably, the curing agent is selected from one, two or more of propylenetriamine, triethylenetetramine, tripropylenetetramine, tetraethylenepentamine, 1, 4-cyclohexanediamine, 4' -methylenebiscyclohexylamine, isophoronediamine, and polyetherdiamine;
preferably, the weight part of the curing agent in the component B is 1-2.5 parts.
4. The anti-corrosion composition according to claim 1, wherein said component a and component B further comprise one, two or more of an anti-sagging/anti-settling agent, a solvent, a plasticizer, a coloring pigment, an antifoaming agent and an anti-fouling agent.
5. The anti-corrosion composition according to claim 1, comprising a component a and a component B, wherein the component a comprises the following raw materials in parts by weight: 63 parts of fluorosilicone resin anticorrosive paint, 8 parts of nano silicon dioxide and 1 part of catalyst;
the fluorosilicone resin anticorrosive paint is a material formed by degrading fluorosilicone resin and introducing isocyanate groups;
the catalyst consists of hexachloroplatinic acid and dimethylvinylsiloxanyl-terminated poly (methyl-3, 3, 3-trifluoropropylsiloxane) in a weight ratio of 1: 30;
the component B comprises the following raw materials in parts by weight: epoxy resin F-4420 parts, gamma-glycidoxypropyltrimethoxysilane 2 parts, tetraethylenepentamine 1 part and 1, 4-cyclohexanediamine 1 part;
preferably, the anti-corrosion composition comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 73 parts of fluorosilicone resin anticorrosive paint, 9 parts of nano silicon dioxide and 1.5 parts of catalyst;
the fluorosilicone resin anticorrosive paint is a material formed by degrading fluorosilicone resin and introducing isocyanate groups;
the catalyst consists of hexachloroplatinic acid and dimethylvinylsiloxanyl-terminated poly (methyl-3, 3, 3-trifluoropropylsiloxane) in a weight ratio of 1: 36;
the component B comprises the following raw materials in parts by weight: epoxy resin E-4410 parts, epoxy resin E-5110 parts, gamma-glycidoxypropyltrimethoxysilane 2 parts, tetraethylenepentamine 1 part and 1, 4-cyclohexanediamine 1 part;
preferably, the anti-corrosion composition comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 70 parts of fluorosilicone resin anticorrosive paint, 5 parts of nano silicon dioxide, 5 parts of nano zinc oxide and 2 parts of catalyst;
the fluorosilicone resin anticorrosive paint is a material formed by degrading fluorosilicone resin and introducing isocyanate groups;
the catalyst consists of hexachloroplatinic acid and dimethylvinylsiloxanyl-terminated poly (methyl-3, 3, 3-trifluoropropylsiloxane) in a weight ratio of 1: 32;
the component B comprises the following raw materials in parts by weight: epoxy resin E-4414 parts, epoxy resin F-5116 parts, gamma-glycidoxypropyltrimethoxysilane 2 parts, 4' -methylenedicyclohexylamine 2.5 parts and aluminum tripolyphosphate 2 parts.
6. A method of making the corrosion protection composition of claim 1, comprising the steps of: mixing the raw materials according to the proportion of the component A to prepare a component A; mixing the components according to the raw material proportion of the component B to prepare a component B; and (5) standby.
7. An anti-corrosion coating obtained by curing the anti-corrosion combination according to any one of claims 1, 2, 4 and 5.
8. An anti-corrosion coating according to claim 7, characterized in that said anti-corrosion coating has a thickness of 80-200 μm;
preferably, the corrosion protection coating is cured on a metal surface or a concrete surface.
9. The method of producing an anti-corrosion coating according to claim 7, comprising the steps of:
(1) mixing the raw materials according to the proportion of the component A to prepare a component A; mixing the components according to the raw material proportion of the component B to prepare a component B; standby;
(2) applying the component A on the surface to be constructed and curing the component A, and then applying the component B on the surface of the cured component A and curing the component B to obtain the anticorrosive coating;
the weight ratio of the component B of the component A is 1 (1-2);
preferably, the application is at least one of spraying, dipping, rolling, brushing.
10. An anticorrosion composition and an anticorrosion coating using the composition are characterized by being applied to the anticorrosion of concrete of a desulfurizing tower, a flue gas cooling tower, a regeneration tower, a comprehensive recovery tower, a chimney (flue) lining of a thermal power plant, a cooling tower or an energy storage pool.
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Cited By (3)
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| CN113308134A (en) * | 2021-07-12 | 2021-08-27 | 贵州电网有限责任公司 | Medium-entropy polymer composite coating material for power transmission tower and preparation method |
| CN113930125A (en) * | 2021-09-28 | 2022-01-14 | 安徽新大陆特种涂料有限责任公司 | Production process of co-crosslinking coating for corrosion prevention of power plant cooling tower |
| CN115216200A (en) * | 2022-07-15 | 2022-10-21 | 桂林理工大学 | Synergistic anticorrosion method for super-hydrophobic coating anticorrosion and friction nano generator cathode anticorrosion |
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| CN115216200A (en) * | 2022-07-15 | 2022-10-21 | 桂林理工大学 | Synergistic anticorrosion method for super-hydrophobic coating anticorrosion and friction nano generator cathode anticorrosion |
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