CN116333561A - Environment-friendly epoxy anti-corrosion paint and preparation method thereof - Google Patents

Environment-friendly epoxy anti-corrosion paint and preparation method thereof Download PDF

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Publication number
CN116333561A
CN116333561A CN202310407804.2A CN202310407804A CN116333561A CN 116333561 A CN116333561 A CN 116333561A CN 202310407804 A CN202310407804 A CN 202310407804A CN 116333561 A CN116333561 A CN 116333561A
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parts
environment
mixture
anticorrosive paint
friendly
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周延
张昭
李晓松
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Yifan Paint Wuxi Co ltd
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Yifan Paint Wuxi Co ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D163/00Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D163/00Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C09D163/10Epoxy resins modified by unsaturated compounds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08Anti-corrosive paints
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2237Oxides; Hydroxides of metals of titanium
    • C08K2003/2241Titanium dioxide
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2296Oxides; Hydroxides of metals of zinc
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24Acids; Salts thereof
    • C08K3/26Carbonates; Bicarbonates
    • C08K2003/265Calcium, strontium or barium carbonate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency

Abstract

The invention relates to the technical field of paint, in particular to an environment-friendly epoxy anti-corrosion paint and a preparation method thereof, wherein the prepared environment-friendly epoxy anti-corrosion paint adopts water-based epoxy resin as a base material, nano inorganic filler is selected, through reasonable collocation, submicron gaps of a coating are fully filled, penetration of chemical substances is blocked, the anti-corrosion effect of a primer is improved, the possibility of sagging and cracking of thick film construction is reduced, the environment-friendly epoxy anti-corrosion paint is nontoxic, the amount of VOC is reduced, the environment-friendly epoxy anti-corrosion paint is harmless to health of manufacturing products and constructors, and is safe and convenient to use; it has good brushing performance, convenient construction and antibacterial performance.

Description

Environment-friendly epoxy anti-corrosion paint and preparation method thereof
Technical Field
The invention relates to the technical field of coatings, in particular to an environment-friendly epoxy anticorrosive paint and a preparation method thereof.
Background
With the development of modern industry, a lot of emerging industrial fields and the construction of many modern engineering put higher demands on the environment-bearing capacity and service life of anticorrosive coatings, which are not satisfied by the commonly used anticorrosive coatings, the concept of "heavy duty coating" proposed by people generally refers to the use in severe corrosive environments, including the matching of primer and top coating, in short: the heavy-duty anticorrosive paint has longer service life and can adapt to more severe use environments, is called heavy-duty anticorrosive paint, can be used for 10 years or more in chemical atmosphere and marine environment, can be used for more than 5 years under the corrosive conditions of acid, alkali, salt and solvent medium, and can be used for more than 15 years, and the application of the heavy-duty anticorrosive paint relates to various modern fields and large industrial and mining enterprises: chemical industry, petrochemical industry, steel and large-scale mine smelting pipelines, storage tanks, equipment and the like; important energy industry: natural gas, oil pipes, oil tanks, power transmission and transformation, nuclear power equipment, coal mines and the like; modern transportation: bridges, ships, containers, trains, automobiles, etc.; emerging ocean engineering: offshore facilities, coastal and bay structures, offshore oil rigs, and the like.
The anti-corrosion paint prepared by taking the epoxy resin as the main raw material is called epoxy anti-corrosion paint, and the epoxy anti-corrosion paint prepared by adopting the existing mode has poor alkali resistance, thereby having lower service life.
Disclosure of Invention
The invention aims to provide an environment-friendly epoxy anticorrosive paint and a preparation method thereof, and aims to solve the technical problems that the anticorrosive paint prepared by taking epoxy resin as a main raw material in the prior art is called epoxy anticorrosive paint, and the epoxy anticorrosive paint prepared by adopting the prior art has poor alkali-resistant effect, so that the service life is low.
In order to achieve the aim, the environment-friendly epoxy anticorrosive paint comprises the following components in parts by weight: 30-50 parts of epoxy resin, 20-30 parts of phenolic resin, 5-9 parts of sodium nitrite, 12-14 parts of pigment, 13-15 parts of chitosan, 2-4 parts of emulsifier, 3-5 parts of defoamer, 3-4 parts of stabilizer, 2-4 parts of thickener, 10-16 parts of distilled water, 40-50 parts of curing agent and 1-3 parts of flash rust inhibitor.
The environment-friendly epoxy anticorrosive paint further comprises 1-2 parts of nano inorganic filler, wherein the nano inorganic filler is preferably one or more of nano zinc oxide, nano titanium white, nano calcium carbonate and allyl carbon, and particularly preferably the allyl carbon or the mixture thereof.
Wherein the environment-friendly epoxy anticorrosive paint further comprises 7-9 parts of nano titanium dioxide, and the nano titanium dioxide is anatase titanium dioxide.
Wherein the epoxy resin is preferably one or more of PEG modified water-based epoxy resin and acrylic acid modified water-based epoxy resin, wherein PEG is PEG-2000 and acrylic acid is methacrylic acid, but is not limited thereto.
Wherein the pigment is one or a mixture of more of zinc barium white powder, carbon black or indanthrene blue, and the dispersing agent is a carbon black dispersing agent.
Wherein the defoaming agent is one or a mixture of a plurality of high-carbon alcohol, natural grease or polyether defoaming agents.
The invention also provides a preparation method of the environment-friendly epoxy anti-corrosion paint, which is used for preparing the environment-friendly epoxy anti-corrosion paint and comprises the following steps of:
step one: firstly, proportionally adding epoxy resin, phenolic resin, sodium nitrite, pigment, chitosan and distilled water into a reaction kettle, adding a stabilizer, controlling the temperature to be 115-120 ℃, stirring at a speed of 100-120r/min, and reacting for 1-1.5h to obtain a mixture A for later use;
step two: adding nano titanium dioxide and nano inorganic filler into the mixture of the reaction kettle according to a proportion, continuously stirring at a high speed for 30-40min, uniformly dispersing, and grinding to a proper fineness to obtain a mixture B for later use;
step three: continuously stirring the reaction kettle, adding an emulsifier, a defoaming agent and a thickening agent into the mixture B in proportion at the moment, and then adjusting the viscosity of raw materials in the reaction kettle to be proper by using quantitative distilled water to obtain a mixture C for standby;
step four: adding an anti-flash rust agent into the curing agent, and adjusting the consistency through distilled water to obtain a mixture D for standby;
step five: and (3) mixing the mixture C and the mixture D in proportion, and then adding the mixture into a stirring device to stir and mix uniformly to obtain the environment-friendly epoxy anticorrosive paint.
Wherein, the temperature during stirring in the first step is 115 ℃, and the stirring speed is 100r/min.
Wherein the reaction time after stirring in the first step is 1h ℃.
The beneficial effects of the invention are as follows: according to the environment-friendly epoxy anticorrosive paint and the preparation method thereof, the raw materials are clear, the preparation is simple, the prepared environment-friendly epoxy anticorrosive paint adopts the water-based epoxy resin as the base material, the nano inorganic filler is selected, the coating submicron gaps are fully filled through reasonable collocation, the penetration of chemical substances is blocked, the rust-proof effect of the primer is improved, the possibility of sagging cracking of thick film construction is reduced, the environment-friendly epoxy anticorrosive paint is nontoxic and environment-friendly, the VOC (volatile organic compound) amount is reduced, the health of manufacturing products and constructors is harmless, the use is safe and convenient, the water-based epoxy resin is PEG-2000 and/or methacrylic acid modified water-based epoxy resin, the application of the water-based epoxy resin improves the comprehensive performance of the water-based epoxy anticorrosive primer, the nano titanium dioxide has strong ultraviolet shielding effect, good dispersibility and weather resistance, the antibacterial property, the self-cleaning property and the ageing resistance of the anticorrosive paint are improved, the environment-friendly epoxy anticorrosive paint has high stability through the addition of the special stabilizer, and the advantages of being compared with the water-based epoxy paint which has the unique water-based condition and the self-based epoxy resin which is fully added, and the water-based epoxy paint is particularly resistant to the like; it has good brushing performance, convenient construction and antibacterial performance.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of the steps of embodiment 1 of the present invention.
Fig. 2 is a flow chart of the steps of embodiment 2 of the present invention.
Fig. 3 is a flow chart of the steps of embodiment 3 of the present invention.
Detailed Description
Referring to fig. 1, fig. 1 is a flow chart of steps of embodiment 1 of the present invention, and the present invention provides an environment-friendly epoxy anticorrosive paint and a preparation method thereof, wherein the environment-friendly epoxy anticorrosive paint comprises the following raw materials in parts by weight: 30 parts of epoxy resin, 20 parts of phenolic resin, 5 parts of sodium nitrite, 12 parts of pigment, 13 parts of chitosan, 2 parts of emulsifier, 3 parts of defoamer, 3 parts of stabilizer, 2 parts of thickener, 10 parts of distilled water, 40 parts of curing agent, 1 part of flash rust inhibitor, 1 part of nano inorganic filler and 7 parts of nano titanium dioxide.
S1: firstly, adding 30 parts of epoxy resin, 20 parts of phenolic resin, 5 parts of sodium nitrite, 12 parts of pigment, 13 parts of chitosan and 10 parts of distilled water into a reaction kettle according to a proportion, adding 3 parts of stabilizer, controlling the temperature to be 115-120 ℃, and stirring at a speed of 100-120r/min for 1-1.5 hours to obtain a mixture A for standby;
s2: adding 7 parts of nano titanium dioxide and 1 part of nano inorganic filler into the mixture of the reaction kettle according to a proportion, continuously stirring at a high speed for 30-40min, uniformly dispersing, and grinding to a proper fineness to obtain a mixture B for later use;
s3: continuously stirring the reaction kettle, at the moment, adding 2 parts of emulsifier, 3 parts of defoamer and 2 parts of thickener into the mixture B in proportion, and then adjusting the viscosity of the raw materials in the reaction kettle to be proper by using quantitative distilled water to obtain a mixture C for standby;
s4: to 40 parts of the curing agent, 1 part of the flash rust inhibitor was added and the consistency was adjusted by distilled water to obtain a mixture D for use.
S5: and (3) mixing the mixture C and the mixture D in proportion, and then adding the mixture into a stirring device to stir and mix uniformly to obtain the environment-friendly epoxy anticorrosive paint.
The temperature during stirring in the first step was 115℃and the stirring speed was 100r/min.
The reaction time after stirring in step one was 1h.
According to the environment-friendly epoxy anticorrosive paint and the preparation method thereof, the raw materials are clear, the preparation is simple, the prepared environment-friendly epoxy anticorrosive paint adopts the water-based epoxy resin as the base material, the nano inorganic filler is selected, the coating submicron gaps are fully filled through reasonable collocation, the penetration of chemical substances is blocked, the rust-proof effect of the primer is improved, the possibility of sagging cracking of thick film construction is reduced, the environment-friendly epoxy anticorrosive paint is nontoxic and environment-friendly, the VOC (volatile organic compound) amount is reduced, the health of manufacturing products and constructors is harmless, the use is safe and convenient, the water-based epoxy resin is PEG-2000 and/or methacrylic acid modified water-based epoxy resin, the application of the water-based epoxy resin improves the comprehensive performance of the water-based epoxy anticorrosive primer, the nano titanium dioxide has strong ultraviolet shielding effect, good dispersibility and weather resistance, the antibacterial property, the self-cleaning property and the ageing resistance of the anticorrosive paint are improved, the environment-friendly epoxy anticorrosive paint has high stability through the addition of the special stabilizer, and the advantages of being compared with the water-based epoxy paint which has the unique water-based condition and the self-based epoxy resin which is fully added, and the water-based epoxy paint is particularly resistant to the like; it has good brushing performance, convenient construction and antibacterial performance.
Referring to fig. 2, fig. 2 is a flow chart of the steps of embodiment 2 of the present invention, and the present invention provides an environment-friendly epoxy anticorrosive paint and a preparation method thereof, wherein the environment-friendly epoxy anticorrosive paint comprises the following raw materials in parts by weight: 40 parts of epoxy resin, 25 parts of phenolic resin, 7 parts of sodium nitrite, 13 parts of pigment, 14 parts of chitosan, 3 parts of emulsifier, 4 parts of defoamer, 3.5 parts of stabilizer, 3 parts of thickener, 13 parts of distilled water, 45 parts of curing agent, 2 parts of flash rust inhibitor, 1.5 parts of nano inorganic filler and 8 parts of nano titanium dioxide.
S1: firstly, 40 parts of epoxy resin, 25 parts of phenolic resin, 7 parts of sodium nitrite, 13 parts of pigment, 14 parts of chitosan and 13 parts of distilled water are proportionally added into a reaction kettle, 3.5 parts of stabilizer is added, the temperature is controlled between 115 and 120 ℃, the stirring speed is 100 to 120r/min, and the reaction time is 1 to 1.5 hours to obtain a mixture A for standby;
s2: adding 8 parts of nano titanium dioxide and 1.5 parts of nano inorganic filler into the mixture of the reaction kettle according to a proportion, continuously stirring at a high speed for 30-40min, uniformly dispersing, and grinding to a proper fineness to obtain a mixture B for later use;
s3: continuously stirring the reaction kettle, at the moment, adding 3 parts of emulsifier, 4 parts of defoamer and 3 parts of thickener into the mixture B in proportion, and then adjusting the viscosity of the raw materials in the reaction kettle to be proper by using quantitative distilled water to obtain a mixture C for standby;
s4: adding 2 parts of flash rust inhibitor into 45 parts of curing agent, and regulating the consistency through distilled water to obtain a mixture D for later use;
s5: and (3) mixing the mixture C and the mixture D in proportion, and then adding the mixture into a stirring device to stir and mix uniformly to obtain the environment-friendly epoxy anticorrosive paint.
The temperature during stirring in step one was 117℃and the stirring speed was 110r/min.
The reaction time after stirring in step one was 1.25h.
According to the environment-friendly epoxy anticorrosive paint and the preparation method thereof, the raw materials are clear, the preparation is simple, the prepared environment-friendly epoxy anticorrosive paint adopts the water-based epoxy resin as the base material, the nano inorganic filler is selected, the coating submicron gaps are fully filled through reasonable collocation, the penetration of chemical substances is blocked, the rust-proof effect of the primer is improved, the possibility of sagging cracking of thick film construction is reduced, the environment-friendly epoxy anticorrosive paint is nontoxic and environment-friendly, the VOC (volatile organic compound) amount is reduced, the health of manufacturing products and constructors is harmless, the use is safe and convenient, the water-based epoxy resin is PEG-2000 and/or methacrylic acid modified water-based epoxy resin, the application of the water-based epoxy resin improves the comprehensive performance of the water-based epoxy anticorrosive primer, the nano titanium dioxide has strong ultraviolet shielding effect, good dispersibility and weather resistance, the antibacterial property, the self-cleaning property and the ageing resistance of the anticorrosive paint are improved, the environment-friendly epoxy anticorrosive paint has high stability through the addition of the special stabilizer, and the advantages of being compared with the water-based epoxy paint which has the unique water-based condition and the self-based epoxy resin which is fully added, and the water-based epoxy paint is particularly resistant to the like; it has good brushing performance, convenient construction and antibacterial performance.
Embodiment 3 referring to fig. 3, fig. 3 is a flow chart of the steps of embodiment 3 of the present invention, and the present invention provides an environment-friendly epoxy anticorrosive paint and a preparation method thereof, wherein the environment-friendly epoxy anticorrosive paint comprises the following raw materials in parts by weight: 50 parts of epoxy resin, 30 parts of phenolic resin, 9 parts of sodium nitrite, 14 parts of pigment, 15 parts of chitosan, 4 parts of emulsifier, 5 parts of defoamer, 4 parts of stabilizer, 4 parts of thickener, 16 parts of distilled water, 50 parts of curing agent, 3 parts of flash rust inhibitor, 2 parts of nano inorganic filler and 9 parts of nano titanium dioxide.
S1: firstly, 50 parts of epoxy resin, 30 parts of phenolic resin, 9 parts of sodium nitrite, 14 parts of pigment, 15 parts of chitosan and 15 parts of distilled water are proportionally added into a reaction kettle, 4 parts of stabilizer are added, the temperature is controlled at 115-120 ℃, the stirring speed is 100-120r/min, and the reaction time is 1-1.5 hours to obtain a mixture A for standby;
s2: adding 9 parts of nano titanium dioxide and 2 parts of nano inorganic filler into the mixture of the reaction kettle according to a proportion, continuously stirring at a high speed for 30-40min, uniformly dispersing, and grinding to a proper fineness to obtain a mixture B for later use;
s3: continuously stirring the reaction kettle, at the moment, adding 4 parts of emulsifier, 5 parts of defoamer and 4 parts of thickener into the mixture B in proportion, and then adjusting the viscosity of the raw materials in the reaction kettle to be proper by using quantitative distilled water to obtain a mixture C for standby;
s4: to 50 parts of the curing agent, 3 parts of the flash rust inhibitor was added and the consistency was adjusted by distilled water to give a mixture D for use.
S5: and (3) mixing the mixture C and the mixture D in proportion, and then adding the mixture into a stirring device to stir and mix uniformly to obtain the environment-friendly epoxy anticorrosive paint.
The temperature during stirring in the first step is 120 ℃, and the stirring speed is 120r/min.
The reaction time after stirring in step one was 1.5h.
According to the environment-friendly epoxy anticorrosive paint and the preparation method thereof, the raw materials are clear, the preparation is simple, the prepared environment-friendly epoxy anticorrosive paint adopts the water-based epoxy resin as the base material, the nano inorganic filler is selected, the coating submicron gaps are fully filled through reasonable collocation, the penetration of chemical substances is blocked, the rust-proof effect of the primer is improved, the possibility of sagging cracking of thick film construction is reduced, the environment-friendly epoxy anticorrosive paint is nontoxic and environment-friendly, the VOC (volatile organic compound) amount is reduced, the health of manufacturing products and constructors is harmless, the use is safe and convenient, the water-based epoxy resin is PEG-2000 and/or methacrylic acid modified water-based epoxy resin, the application of the water-based epoxy resin improves the comprehensive performance of the water-based epoxy anticorrosive primer, the nano titanium dioxide has strong ultraviolet shielding effect, good dispersibility and weather resistance, the antibacterial property, the self-cleaning property and the ageing resistance of the anticorrosive paint are improved, the environment-friendly epoxy anticorrosive paint has high stability through the addition of the special stabilizer, and the advantages of being compared with the water-based epoxy paint which has the unique water-based condition and the self-based epoxy resin which is fully added, and the water-based epoxy paint is particularly resistant to the like; it has good brushing performance, convenient construction and antibacterial performance.
The above disclosure is only a preferred embodiment of the present invention, and it should be understood that the scope of the invention is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present invention.

Claims (9)

1. An environment-friendly epoxy anticorrosive paint is characterized by comprising the following components:
comprises the following components in parts by weight: 30-50 parts of epoxy resin, 20-30 parts of phenolic resin, 5-9 parts of sodium nitrite, 12-14 parts of pigment, 13-15 parts of chitosan, 2-4 parts of emulsifier, 3-5 parts of defoamer, 3-4 parts of stabilizer, 2-4 parts of thickener, 10-16 parts of distilled water, 40-50 parts of curing agent and 1-3 parts of flash rust inhibitor.
2. The environment-friendly epoxy anticorrosive paint according to claim 1, wherein,
the environment-friendly epoxy anticorrosive paint also comprises 1-2 parts of nano inorganic filler, wherein the nano inorganic filler is preferably one or more of nano zinc oxide, nano titanium white, nano calcium carbonate and allyl carbon, and particularly preferably the allyl carbon or the mixture thereof.
3. The environment-friendly epoxy anticorrosive paint as claimed in claim 2, wherein,
the environment-friendly epoxy anticorrosive paint also comprises 7-9 parts of nano titanium dioxide, wherein the nano titanium dioxide is anatase titanium dioxide.
4. The environment-friendly epoxy anticorrosive paint according to claim 3, wherein,
the epoxy resin is preferably one or more of PEG modified water-based epoxy resin and acrylic acid modified water-based epoxy resin, wherein PEG is PEG-2000 and acrylic acid is methacrylic acid, but is not limited thereto.
5. The environment-friendly epoxy anticorrosive paint as claimed in claim 4, wherein,
the pigment is one or a mixture of more of zinc barium white powder, carbon black or indanthrene blue, and the dispersing agent is a carbon black dispersing agent.
6. The environment-friendly epoxy anticorrosive paint as claimed in claim 5, wherein,
the defoaming agent is one or a mixture of a plurality of high-carbon alcohol, natural grease or polyether defoaming agents.
7. A method for preparing the environment-friendly epoxy anticorrosive paint, which is characterized by comprising the following steps:
step one: firstly, proportionally adding epoxy resin, phenolic resin, sodium nitrite, pigment, chitosan and distilled water into a reaction kettle, adding a stabilizer, controlling the temperature to be 115-120 ℃, stirring at a speed of 100-120r/min, and reacting for 1-1.5h to obtain a mixture A for later use;
step two: adding nano titanium dioxide and nano inorganic filler into the mixture of the reaction kettle according to a proportion, continuously stirring at a high speed for 30-40min, uniformly dispersing, and grinding to a proper fineness to obtain a mixture B for later use;
step three: continuously stirring the reaction kettle, adding an emulsifier, a defoaming agent and a thickening agent into the mixture B in proportion at the moment, and then adjusting the viscosity of raw materials in the reaction kettle to be proper by using quantitative distilled water to obtain a mixture C for standby;
step four: adding an anti-flash rust agent into the curing agent, and adjusting the consistency through distilled water to obtain a mixture D for standby;
step five: and (3) mixing the mixture C and the mixture D in proportion, and then adding the mixture into a stirring device to stir and mix uniformly to obtain the environment-friendly epoxy anticorrosive paint.
8. The method for preparing the environment-friendly epoxy anticorrosive paint as claimed in claim 7, wherein,
the temperature during stirring in the first step was 115℃and the stirring speed was 100r/min.
9. The method for preparing the environment-friendly epoxy anticorrosive paint as claimed in claim 8, wherein,
the reaction time after stirring in step one was 1h.
CN202310407804.2A 2023-04-17 2023-04-17 Environment-friendly epoxy anti-corrosion paint and preparation method thereof Pending CN116333561A (en)

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CN104592853A (en) * 2014-12-10 2015-05-06 成都拜迪新材料有限公司 Preparation method for water-based phenolic red lead rusted antirust primer
CN104592856A (en) * 2014-12-11 2015-05-06 青岛佰众化工技术有限公司 Waterborne epoxy anti-corrosion coating added with chitosan
CN106987193A (en) * 2017-01-06 2017-07-28 河北晨阳工贸集团有限公司 A kind of oil pipeline is with aqueous heavy antisepsis epoxy primer
CN107022281A (en) * 2017-06-05 2017-08-08 四川奥林涂料工业有限公司 A kind of epoxy anticorrosion primer and preparation method thereof

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