CN112552766A - Anticorrosive paint for concrete and preparation method thereof - Google Patents
Anticorrosive paint for concrete and preparation method thereof Download PDFInfo
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- CN112552766A CN112552766A CN202011490018.6A CN202011490018A CN112552766A CN 112552766 A CN112552766 A CN 112552766A CN 202011490018 A CN202011490018 A CN 202011490018A CN 112552766 A CN112552766 A CN 112552766A
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- concrete
- anticorrosive paint
- acrylic emulsion
- emulsion
- coating
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
- C09D133/16—Homopolymers or copolymers of esters containing halogen atoms
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to an anticorrosive paint for concrete and a preparation method thereof, belonging to the field of concrete paint. The invention comprises the following raw materials in percentage by mass: 48-50% of acrylic emulsion, 5-6% of epoxy silicon resin, 5-6% of ethylenediamine, 18-21% of titanium dioxide, 4-9% of talcum powder, 0.4-0.6% of dispersing agent, 0.5-0.6% of coupling agent, 1-2% of sodium carboxymethyl cellulose, 3-5% of alcohol ester dodeca, 0.1-0.3% of polydimethylsiloxane, 0.1-0.5% of multifunctional additive and the balance of deionized water; the corrosion-resistant coating has the advantages that the corrosion medium in the environment can be prevented from permeating into the concrete for a long time to cause corrosion by optimizing the components of the coating, the corrosion-resistant capability of the concrete is greatly enhanced, and the coating has simple components and no pollution.
Description
Technical Field
The invention relates to an anticorrosive paint for concrete and a preparation method thereof, belonging to the field of concrete paint.
Background
The concrete has rough surface, porous structure and easy generation of CO in the environment2Water, salt ions and the like, and cracks and carbonization are generated, thereby seriously shortening the service life of the material. The coating protection is one of effective means for concrete protection, and can effectively improve the concrete structure and the durability. However, the common concrete corrosion prevention paint contains a large amount of organic solvents as diluents and curing agents, so that the paint has certain toxicity, and diseases such as nasopharyngeal carcinoma, laryngeal carcinoma and the like can be caused after long-term inhalation.
In recent years, with the national emphasis on environmental protection, organic coatings are developing towards pollution-free and environment-friendly water-based coatings.
Disclosure of Invention
Aiming at the defects of the concrete coating, the invention provides the coating which improves the corrosion resistance of concrete and has no pollution and the preparation method thereof.
The purpose of the invention is realized by the following technical scheme: the anticorrosive paint for the concrete is prepared from the following raw materials in percentage by mass: 48-50% of acrylic emulsion, 5-6% of epoxy silicon resin, 5-6% of ethylenediamine, 18-21% of titanium dioxide, 4-9% of talcum powder, 0.4-0.6% of dispersing agent, 0.5-0.6% of coupling agent, 1-2% of sodium carboxymethyl cellulose, 3-5% of alcohol ester dodeca, 0.1-0.3% of polydimethylsiloxane, 0.1-0.5% of multifunctional additive and the balance of deionized water.
The epoxy silicone resin has the advantages of both epoxy resin and organic silicon resin, has excellent heat resistance and corrosion resistance, is oil-resistant, moisture-proof, insulating and strong in adhesive force, and can be cured at low temperature. The addition of the epoxy silicone resin can enhance the flexibility of the coating and improve the heat resistance of the coating
The acrylic emulsion is synthesized by taking butyl methacrylate, butyl acrylate, methyl methacrylate, methacrylic acid and dodecyl heptyl methacrylate as monomers and taking ammonium bisulfate as an initiator under the action of a polyoxyethylene octyl phenol ether-10 and sodium dodecyl sulfate composite emulsifier.
In the anticorrosive paint for concrete, the mass fraction of the composite emulsifier in the acrylic emulsion raw material is 2.1-2.5%, the mass fraction of the initiator is 0.3-0.6%, and the dosage of the fluorine-containing monomer is 7.0-9.0%. The low dosage of the initiator can cause the emulsion to have high coagulation rate, and even cause the property change of the emulsion when the dosage is too low; when the dosage of the fluorine-containing monomer is large, the solid content of the emulsion is increased.
In the anticorrosive paint for concrete, the solid content of the acrylic emulsion is 48-50%, and the pH value is 6.8-7.2.
In the above anticorrosive paint for concrete, the dispersant is an ammonium polycarboxylate dispersant. The polycarboxylate dispersant has the advantages of reducing the viscosity of the grinding material, improving the rough storage stability of the coating, increasing the gloss and leveling property, and having higher dispersibility than the conventional dispersant, so that the addition amount of the dispersant is small.
In the anticorrosive paint for concrete, the multifunctional auxiliary agent is 2-amino-2-methyl-1-propanol.
A method for preparing an anticorrosive paint for concrete, comprising the steps of: according to the preparation method, firstly, titanium dioxide and talcum powder are added into acrylic emulsion and stirred uniformly, sodium carboxymethylcellulose, a dispersing agent and a coupling agent are dispersed in deionized water and added into the emulsion for mixing, finally, polydimethylsiloxane, alcohol ester dodeca and a multifunctional auxiliary agent are added, the emulsion is heated to 30-35 ℃, and epoxy silicon resin and ethylenediamine are added for mixing to obtain the anticorrosive coating.
Compared with the prior art, the invention provides the anticorrosive coating for the concrete and the preparation method thereof, the corrosion of the concrete caused by the penetration of corrosive media in the environment into the concrete can be prevented for a long time by optimizing the components of the coating, the anticorrosive capability of the concrete is greatly enhanced, and the coating has simple components and no pollution.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.
Example 1:
raw materials are arranged according to the following mass distribution: 48% of acrylic emulsion, 5% of epoxy silicon resin, 5% of ethylenediamine, 18% of titanium dioxide, 5% of talcum powder, 0.4% of ammonium polycarboxylate dispersant, 0.6% of coupling agent, 1% of sodium carboxymethylcellulose, 4% of alcohol ester dodeca, 0.2% of polydimethylsiloxane, 0.4% of 2-amino-2-methyl-1-propanol and the balance of deionized water.
The acrylic emulsion is synthesized by taking butyl methacrylate, butyl acrylate, methyl methacrylate, methacrylic acid and dodecyl heptyl methacrylate as monomers and taking ammonium bisulfate as an initiator under the action of a polyoxyethylene octyl phenol ether-10 and sodium dodecyl sulfate composite emulsifier. The mass fraction of the composite emulsifier in the raw material of the acrylic emulsion is 2.2%, the mass fraction of the initiator is 0.4%, and the dosage of the fluorine-containing monomer is 8.6%.
Adding titanium dioxide and talcum powder into acrylic emulsion, uniformly stirring, dispersing sodium carboxymethylcellulose, a dispersing agent and a coupling agent in deionized water, adding the dispersed sodium carboxymethylcellulose, the dispersing agent and the coupling agent into the emulsion, mixing, finally adding polydimethylsiloxane, alcohol ester dodeca and a multifunctional auxiliary agent, heating the emulsion to 30 ℃, adding epoxy silicon resin and ethylenediamine, and mixing to obtain the anticorrosive coating.
Example 2:
raw materials are arranged according to the following mass distribution: 48% of acrylic emulsion, 5% of epoxy silicon resin, 5% of ethylenediamine, 18% of titanium dioxide, 4% of talcum powder, 0.4% of ammonium polycarboxylate dispersant, 0.5% of coupling agent, 1% of sodium carboxymethylcellulose, 3% of alcohol ester dodeca, 0.1% of polydimethylsiloxane, 0.1% of 2-amino-2-methyl-1-propanol and the balance of deionized water.
The acrylic emulsion is synthesized by taking butyl methacrylate, butyl acrylate, methyl methacrylate, methacrylic acid and dodecyl heptyl methacrylate as monomers and taking ammonium bisulfate as an initiator under the action of a polyoxyethylene octyl phenol ether-10 and sodium dodecyl sulfate composite emulsifier. The mass fraction of the composite emulsifier in the raw material of the acrylic emulsion is 2.1%, the mass fraction of the initiator is 0.3%, and the dosage of the fluorine-containing monomer is 7.0%.
Adding titanium dioxide and talcum powder into acrylic emulsion, uniformly stirring, dispersing sodium carboxymethylcellulose, a dispersing agent and a coupling agent in deionized water, adding the dispersed sodium carboxymethylcellulose, the dispersing agent and the coupling agent into the emulsion, mixing, finally adding polydimethylsiloxane, alcohol ester dodeca and a multifunctional auxiliary agent, heating the emulsion to 30 ℃, adding epoxy silicon resin and ethylenediamine, and mixing to obtain the anticorrosive coating.
Example 3:
raw materials are arranged according to the following mass distribution: 50% of acrylic emulsion, 6% of epoxy silicon resin, 6% of ethylenediamine, 21% of titanium dioxide, 9% of talcum powder, 0.6% of ammonium polycarboxylate dispersant, 0.6% of coupling agent, 2% of sodium carboxymethylcellulose, 5% of alcohol ester dodeca, 0.3% of polydimethylsiloxane, 0.5% of 2-amino-2-methyl-1-propanol and the balance of deionized water.
The acrylic emulsion is synthesized by taking butyl methacrylate, butyl acrylate, methyl methacrylate, methacrylic acid and dodecyl heptyl methacrylate as monomers and taking ammonium bisulfate as an initiator under the action of a polyoxyethylene octyl phenol ether-10 and sodium dodecyl sulfate composite emulsifier. The mass fraction of the composite emulsifier in the raw material of the acrylic emulsion is 2.5%, the mass fraction of the initiator is 0.6%, and the dosage of the fluorine-containing monomer is 9.0%.
Adding titanium dioxide and talcum powder into acrylic emulsion, uniformly stirring, dispersing sodium carboxymethylcellulose, a dispersing agent and a coupling agent in deionized water, adding the dispersed sodium carboxymethylcellulose, the dispersing agent and the coupling agent into the emulsion, mixing, finally adding polydimethylsiloxane, alcohol ester dodeca and a multifunctional auxiliary agent, heating the emulsion to 35 ℃, adding epoxy silicon resin and ethylenediamine, and mixing to obtain the anticorrosive coating.
Example 4:
raw materials are arranged according to the following mass distribution: 30% of acrylic emulsion, 2% of epoxy silicon resin, 2% of ethylenediamine, 15% of titanium dioxide, 3% of talcum powder, 0.3% of ammonium polycarboxylate dispersant, 0.3% of coupling agent, 0.5% of sodium carboxymethylcellulose, 2% of alcohol ester dodeca, 0.1% of polydimethylsiloxane, 0.1% of 2-amino-2-methyl-1-propanol and the balance of deionized water.
The acrylic emulsion is synthesized by taking butyl methacrylate, butyl acrylate, methyl methacrylate, methacrylic acid and dodecyl heptyl methacrylate as monomers and taking ammonium bisulfate as an initiator under the action of a polyoxyethylene octyl phenol ether-10 and sodium dodecyl sulfate composite emulsifier. The mass fraction of the composite emulsifier in the raw material of the acrylic emulsion is 1.5%, the mass fraction of the initiator is 0.2%, and the dosage of the fluorine-containing monomer is 6.0%.
Adding titanium dioxide and talcum powder into acrylic emulsion, uniformly stirring, dispersing sodium carboxymethylcellulose, a dispersing agent and a coupling agent in deionized water, adding the dispersed sodium carboxymethylcellulose, the dispersing agent and the coupling agent into the emulsion, mixing, finally adding polydimethylsiloxane, alcohol ester dodeca and a multifunctional auxiliary agent, heating the emulsion to 30 ℃, adding epoxy silicon resin and ethylenediamine, and mixing to obtain the anticorrosive coating.
Example 5:
raw materials are arranged according to the following mass distribution: 55% of acrylic emulsion, 7% of epoxy silicon resin, 7% of ethylenediamine, 22% of titanium dioxide, 5% of talcum powder, 0.8% of ammonium polycarboxylate dispersant, 0.9% of coupling agent, 3% of sodium carboxymethylcellulose, 6% of alcohol ester dodeca, 0.5% of polydimethylsiloxane, 0.8% of 2-amino-2-methyl-1-propanol and the balance of deionized water.
The acrylic emulsion is synthesized by taking butyl methacrylate, butyl acrylate, methyl methacrylate, methacrylic acid and dodecyl heptyl methacrylate as monomers and taking ammonium bisulfate as an initiator under the action of a polyoxyethylene octyl phenol ether-10 and sodium dodecyl sulfate composite emulsifier. The mass fraction of the composite emulsifier in the raw material of the acrylic emulsion is 2.2%, the mass fraction of the initiator is 0.4%, and the dosage of the fluorine-containing monomer is 8.6%.
Adding titanium dioxide and talcum powder into acrylic emulsion, uniformly stirring, dispersing sodium carboxymethylcellulose, a dispersing agent and a coupling agent in deionized water, adding the dispersed sodium carboxymethylcellulose, the dispersing agent and the coupling agent into the emulsion, mixing, finally adding polydimethylsiloxane, alcohol ester dodeca and a multifunctional auxiliary agent, heating the emulsion to 30 ℃, adding epoxy silicon resin and ethylenediamine, and mixing to obtain the anticorrosive coating.
Comparative example 1:
the only difference from example 1 is that the anticorrosive coating does not contain epoxy silicone resin.
Table 1: examples 1-3, comparative example 1 overall Properties of the anticorrosion coating
The results show that the corrosion resistance of the concrete is greatly enhanced by optimizing the components of the coating, so that the corrosion medium in the environment can be prevented from permeating into the concrete for a long time to cause corrosion.
Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
While the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope thereof.
Claims (7)
1. The anticorrosive paint for the concrete is characterized by comprising the following raw materials in percentage by mass: 48-50% of acrylic emulsion, 5-6% of epoxy silicon resin, 5-6% of ethylenediamine, 18-21% of titanium dioxide, 4-9% of talcum powder, 0.4-0.6% of dispersing agent, 0.5-0.6% of coupling agent, 1-2% of sodium carboxymethyl cellulose, 3-5% of alcohol ester dodeca, 0.1-0.3% of polydimethylsiloxane, 0.1-0.5% of multifunctional additive and the balance of deionized water.
2. The anticorrosive paint for concrete according to claim 1, wherein the acrylic emulsion is synthesized from butyl methacrylate, butyl acrylate, methyl methacrylate, methacrylic acid and dodecafluoro-heptyl methacrylate as monomers by using ammonium bisulfate as an initiator under the action of a polyoxyethylene octyl phenol ether-10 and sodium dodecyl sulfate composite emulsifier.
3. The anticorrosive paint for concrete according to claim 2, wherein the mass fraction of the composite emulsifier in the acrylic emulsion raw material is 2.1-2.5%, the mass fraction of the initiator is 0.3-0.6%, and the amount of the fluorine-containing monomer is 7.0-9.0%.
4. The anticorrosive paint for concrete according to claim 1, wherein the acrylic emulsion has a solid content of 48 to 50% and a pH of 6.8 to 7.2.
5. The anticorrosive paint for concrete according to claim 1, wherein the dispersant is an ammonium polycarboxylate dispersant.
6. The anticorrosive paint for concrete according to claim 1, wherein the multifunctional assistant is 2-amino-2-methyl-1-propanol.
7. A preparation method of an anticorrosive paint for concrete is characterized by comprising the following steps: the preparation method of the anticorrosive paint comprises the steps of adding titanium dioxide and talcum powder into acrylic emulsion, uniformly stirring, dispersing sodium carboxymethylcellulose, a dispersing agent and a coupling agent in deionized water, adding the dispersed materials into the emulsion, mixing, adding polydimethylsiloxane, alcohol ester dodeca and a multifunctional additive, heating the emulsion to 30-35 ℃, adding epoxy silicon resin, and mixing to obtain the anticorrosive paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011490018.6A CN112552766A (en) | 2020-12-17 | 2020-12-17 | Anticorrosive paint for concrete and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011490018.6A CN112552766A (en) | 2020-12-17 | 2020-12-17 | Anticorrosive paint for concrete and preparation method thereof |
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| CN112552766A true CN112552766A (en) | 2021-03-26 |
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| CN202011490018.6A Pending CN112552766A (en) | 2020-12-17 | 2020-12-17 | Anticorrosive paint for concrete and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10328636A1 (en) * | 2003-06-26 | 2005-01-27 | Goldschmidt Ag | Oxyalkylene ether group-modified epoxypolysiloxanes are used as hydrophobicizers in silicon resin paints, e.g. concrete faade paints |
| US20150000562A1 (en) * | 2012-02-16 | 2015-01-01 | Wacker Chemie Ag | Hydrophobing agent for coatings |
| CN104513611A (en) * | 2015-01-22 | 2015-04-15 | 重庆锦弘建设工程有限公司 | Air-permeable type concrete protection finishing coat |
| CN106082774A (en) * | 2016-06-12 | 2016-11-09 | 江苏苏博特新材料股份有限公司 | A kind of varieties in saline-alkali areas concrete salt corrosion transmission suppression material |
| CN109852186A (en) * | 2019-01-21 | 2019-06-07 | 长安大学 | A kind of fluorocarbon coating for the erosion of paralic environment antiseptic concrete |
| CN211736199U (en) * | 2020-01-10 | 2020-10-23 | 嘉兴王博建筑材料有限公司 | Epoxy terrace |
-
2020
- 2020-12-17 CN CN202011490018.6A patent/CN112552766A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10328636A1 (en) * | 2003-06-26 | 2005-01-27 | Goldschmidt Ag | Oxyalkylene ether group-modified epoxypolysiloxanes are used as hydrophobicizers in silicon resin paints, e.g. concrete faade paints |
| US20150000562A1 (en) * | 2012-02-16 | 2015-01-01 | Wacker Chemie Ag | Hydrophobing agent for coatings |
| CN104513611A (en) * | 2015-01-22 | 2015-04-15 | 重庆锦弘建设工程有限公司 | Air-permeable type concrete protection finishing coat |
| CN106082774A (en) * | 2016-06-12 | 2016-11-09 | 江苏苏博特新材料股份有限公司 | A kind of varieties in saline-alkali areas concrete salt corrosion transmission suppression material |
| CN109852186A (en) * | 2019-01-21 | 2019-06-07 | 长安大学 | A kind of fluorocarbon coating for the erosion of paralic environment antiseptic concrete |
| CN211736199U (en) * | 2020-01-10 | 2020-10-23 | 嘉兴王博建筑材料有限公司 | Epoxy terrace |
Non-Patent Citations (1)
| Title |
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| 陈彤丹等: ""水性氟碳涂料的制备及其用于混凝土防腐研究"", 《化工新型材料》 * |
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