CN113999551A - Normal-temperature-cured high-hardness steel bar anticorrosive paint and preparation method thereof - Google Patents
Normal-temperature-cured high-hardness steel bar anticorrosive paint and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
- C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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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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- 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
- C09D7/65—Additives macromolecular
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Abstract
A normal temperature solidified high-hardness steel bar anticorrosive paint and a preparation method thereof, comprises high-clay soil, slag, cement, sodium silicate, sodium hydroxide, latex powder, a defoaming agent, an adhesion agent and styrene-acrylic emulsion; according to the invention, kaolin is used as a raw material, and other inorganic powder and styrene-acrylic emulsion are added for modification and reinforcement, so that the metal anticorrosive paint with good film forming property, high strength, no toxicity and environmental friendliness is obtained; the surface drying time of the coating material is 30 minutes, the actual drying time is 3 hours, the coating hardness is 9H after 24 hours, and the coating material has antibacterial activity, waterproofness and incombustibility and has excellent adhesion to a substrate on a metal or nonmetal surface; the inorganic material powder used in the invention is widely distributed all over the world, is cheap and easily available, has simple preparation process and low cost, and is non-toxic and pollution-free.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a normal-temperature-cured high-hardness steel bar anticorrosive coating and a preparation method thereof.
Background
In the development of society and people's life, metal material plays an important role, but metal material often receives the influence of environment and takes place to corrode in the use, has brought the huge loss to national economy, and according to statistics about one hundred million tons of metal that the world corrodes and abandons every year, accounting for annual output 20% -40%, the economic loss because of metal structure corrosion has been up to several billions of dollars all over the world. In order to prevent corrosion of metals, many measures have been taken, such as electrochemical protection of metals, treatment of corrosive media, protection of coatings, etc. However, the most common, economical and practical protection measure so far is paint protection, and paint corrosion prevention is widely applied due to the characteristics of simple and convenient construction, economical and applicable property, no restriction of equipment area and shape, certain decorative effect and the like.
Coatings can be classified into organic coatings and inorganic coatings according to the difference of film-forming substances. Most of the anticorrosive coatings on the market are organic coatings which have a large negative effect on the environment because they contain Volatile Organic Compounds (VOC) which are easily harmful to human bodies, although they have a corrosion inhibiting effect. Meanwhile, the organic coating is easy to crack in natural environment, and has the phenomena of peeling and pulverization, and the inorganic coating is alkaline, can enhance the protection effect on metal, and has the advantages of water resistance, fire resistance, weather resistance and the like;
organic coatings are commonly used for the anticorrosion coating coated on the surface of the steel bar at present, and although the organic coatings have the effect of inhibiting corrosion, the inorganic coatings consist of four parts, namely resin, pigment, filler, solvent and various auxiliaries, and formaldehyde VOC volatilized from the film is a toxic and harmful substance, is not only harmful to human bodies, but also pollutes the natural environment.
The geopolymer is an inorganic high-molecular polycondensate with a three-dimensional condensed oxide network structure consisting of AlO4 and SiO4 tetrahedral structural units. The geopolymer is a stable oxide network structure system, so that the geopolymer has excellent mechanical properties, chemical corrosion resistance, fire resistance, high temperature resistance and permeability resistance. The material has the characteristics of high strength, high stability, high durability and reaction and solidification at normal temperature, and can be used as a film forming substance of a coating material. The invention takes kaolin as a raw material to develop the normal-temperature cured high-hardness steel bar anticorrosive paint. The coating material is directly taken from the nature, hardly causes pollution to the environment in the production process, and has no adverse effect on the environment and the health.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the normal-temperature-cured high-hardness steel bar anticorrosive coating and the preparation method thereof, cement and slag are doped to improve the early hardness and the solidification speed, and simultaneously styrene-acrylic emulsion is doped to improve the crack resistance of the coating and eliminate cracks generated after reaction and solidification, so that the defects of the coating material prepared by taking kaolin as a film-forming substance at present are overcome, and the coating has the characteristics of low price, easy obtainment, simple preparation process, low cost, no toxicity and no pollution.
In order to achieve the purpose, the invention adopts the technical scheme that: the normal-temperature-cured high-hardness steel bar anticorrosive paint is characterized by comprising the following components in parts by weight: a solid component, a liquid component and a styrene-acrylic emulsion; the weight ratio of the solid component to the liquid component is 1: 0.9-1.0;
the solid components comprise: kaolin: 80-100 parts of a solvent; slag: 5-10 parts; cement: 1-5 parts; 1-5 parts of latex powder
The liquid components comprise: sodium water glass: 80-100 parts of a solvent; defoaming agent: 1-2 parts; an adhesion agent: 1-5 parts; styrene-acrylic emulsion: 15-25 parts.
The kaolin is 1250-mesh kaolin powder, and the Al and Si of the kaolin are 1.04.
The slag is S105 slag.
The cement is Po42.5 cement.
The latex powder is 5044N.
The defoaming agent is an organic silicon defoaming agent.
The adhesive is silica sol LUDOXHS-40.
The sodium water glass is water glass.
The preparation method of the water glass comprises the following steps:
step 1) preparing a sodium silicate solution with the mass fraction of 40%;
step 2) preparing 10mol/L sodium hydroxide solution;
step 3), preparing a sodium silicate solution by mass: sodium hydroxide solution ═ 2.5: 1, adding a sodium hydroxide solution into a sodium silicate solution, and standing for 24 hours;
the sodium silicate is powder instant sodium silicate;
the sodium hydroxide is solid flaky sodium hydroxide, and the mass fraction of the sodium hydroxide is 98.5%.
A preparation method of a normal-temperature-cured high-hardness steel bar anticorrosive paint comprises the following steps:
step 1, mixing 80-100 parts of kaolin, 5-10 parts of slag, 0-5 parts of cement and 0-5 parts of latex powder, uniformly stirring in a dry powder stirrer for 30 minutes, and packaging for later use;
step 2, uniformly mixing 80-100 parts of self-made water glass, 1-2 parts of defoaming agent and 1-5 parts of adhesive, and packaging for later use;
and 3, mixing the mixed powder obtained in the step 1 and the mixed liquid obtained in the step 2, wherein the solid mass: mixing the liquid with the mass ratio of 1: 1.0-1.2, stirring and standing for 10 minutes;
and 4, adding 15-25 parts of styrene-acrylic emulsion into the liquid obtained in the step 3, and uniformly stirring to obtain the normal-temperature cured high-hardness steel bar anticorrosive paint.
The invention has the beneficial effects that:
according to the invention, kaolin is used as a main raw material, alkali can excite a kaolin cementing material, the kaolin cementing material is excited by alkaline water glass, and cement and slag are doped to obtain higher density and hardness, so that the covering power of a coating is increased; the addition of the styrene-acrylic emulsion improves the fluidity and the crack resistance of the coating material and eliminates cracks generated after curing; the adhesion of the coating material and the metal matrix is improved by adding the adhesion agent; the latex powder is added, so that the flexibility of the coating material is improved; the addition of the defoamer reduces bubbles in the coating material.
The coating prepared by the method takes kaolin as an inorganic material film forming material, and is modified and enhanced by adding other inorganic powder and styrene-acrylic emulsion, so that an inorganic anticorrosive coating material with good moldability, high strength, no toxicity and environmental protection is obtained; the coating has good binding force with a metal substrate, and can be directly coated on the metal surface to be used as an anti-corrosion primer or finish; according to the invention, kaolin is used as a raw material, and other inorganic powder and styrene-acrylic emulsion are added for modification and reinforcement, so that the metal anticorrosive paint with good film forming property, high strength, no toxicity and environmental friendliness is obtained; the coating material of the present invention has a surface drying time of 30 minutes, a tack drying time of 3 hours, a coating hardness of 9H for 24 hours, antibacterial activity, water resistance, and incombustibility and excellent adhesion to a substrate on a metal or non-metal surface. The inorganic material powder used in the invention is widely distributed all over the world, is cheap and easily available, has simple preparation process and low cost, and is non-toxic and pollution-free.
The normal temperature curing anticorrosive paint has excellent outdoor weather resistance, chemical resistance and high hardness, and the composition is applied to the surfaces of inorganic matters (iron plates, tin plates, aluminum plates, steel plates and glass) and organic matters (wood, paper and plastic) as the paint. Especially for metal surfaces.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example 1
The normal-temperature curing high-hardness steel bar anticorrosive paint comprises the following components in parts by weight: a solid component, a liquid component and a styrene-acrylic emulsion; the weight ratio of the solid component to the liquid component is 1: 0.9;
the solid components comprise: kaolin: 80 parts of a mixture; slag: 5 parts of a mixture; cement: 3 parts of a mixture; 2.5 parts of latex powder;
the liquid components comprise: sodium water glass: 80 parts of a mixture; defoaming agent: 0.2 part; an adhesion agent: 1.2 parts; styrene-acrylic emulsion: 15 parts.
The kaolin is 1250-mesh kaolin powder produced by Lingshou Suda mineral products, Inc., of Hubei Lingshou county, wherein Al and Si are 1.04.
The slag is S105 slag produced by Shijiazhuang Ruchuan building materials Co.
The cement is conch brand Po42.5 cement.
The latex powder is German Wake brand latex powder 5044N.
The defoaming agent is an organic silicon defoaming agent.
The adhesive is silica sol LUDOX HS-40 produced by Qinghai Mike silica gel desiccant GmbH.
The sodium water glass is self-made sodium water glass.
The preparation method of the water glass comprises the following steps:
step 1) preparing a sodium silicate solution with the mass fraction of 40%;
step 2) preparing 10mol/L sodium hydroxide solution;
step 3), preparing a sodium silicate solution by mass: sodium hydroxide solution ═ 2.5: 1, adding a sodium hydroxide solution into a sodium silicate solution, and standing for 24 hours;
the sodium silicate is powder instant sodium silicate;
the sodium hydroxide is solid flaky sodium hydroxide, and the mass fraction of the sodium hydroxide is 98.5%.
A preparation method of a normal-temperature-cured high-hardness steel bar anticorrosive paint comprises the following steps:
step 1, mixing 80-100 parts of kaolin, 5-10 parts of slag, 0-5 parts of cement and 0-5 parts of latex powder, uniformly stirring in a dry powder stirrer for 30 minutes, and packaging for later use;
step 2, uniformly mixing 80-100 parts of self-made water glass, 1-2 parts of defoaming agent and 1-5 parts of adhesive, and packaging for later use;
and 3, mixing the mixed powder obtained in the step 1 and the mixed liquid obtained in the step 2, wherein the solid mass: mixing the liquid with the mass ratio of 1: 1.0-1.2, stirring and standing for 10 minutes;
and 4, adding 15-25 parts of styrene-acrylic emulsion into the liquid obtained in the step 3, and uniformly stirring to obtain the normal-temperature cured high-hardness steel bar anticorrosive paint.
Example 2
The normal-temperature curing high-hardness steel bar anticorrosive paint comprises the following components in parts by weight: a solid component, a liquid component and a styrene-acrylic emulsion; the weight ratio of the solid component to the liquid component is 1: 0.95;
the solid components comprise: kaolin: 90 parts of a mixture; slag: 8 parts of a mixture; cement: 2.5 parts; 2.5 parts of latex powder;
the liquid components comprise: sodium water glass: 90 parts of a mixture; defoaming agent: 1 part; an adhesion agent: 2.5 parts; styrene-acrylic emulsion: and 20 parts.
The kaolin is 1250-mesh kaolin powder, and the Al and Si of the kaolin are 1.04. The slag is S105 slag. The cement is Po42.5 cement. The latex powder is 5044N.
The defoaming agent is an organic silicon defoaming agent. The adhesion agent is silica sol LUDOX HS-40. The sodium water glass is water glass.
The preparation method of the water glass comprises the following steps:
step 1) preparing a sodium silicate solution with the mass fraction of 40%;
step 2) preparing 10mol/L sodium hydroxide solution;
step 3), preparing a sodium silicate solution by mass: sodium hydroxide solution ═ 2.5: 1, adding a sodium hydroxide solution into a sodium silicate solution, and standing for 24 hours;
the sodium silicate is powder instant sodium silicate; the sodium hydroxide is solid flaky sodium hydroxide, and the mass fraction of the sodium hydroxide is 98.5%.
Example 3
The normal-temperature curing high-hardness steel bar anticorrosive paint comprises the following components in parts by weight: a solid component, a liquid component and a styrene-acrylic emulsion; the weight ratio of the solid component to the liquid component is 1: 1.0;
the solid components comprise: kaolin: 100 parts of (A); slag: 10 parts of (A); cement: 5 parts of a mixture; 5 parts of latex powder;
the liquid components comprise: sodium water glass: 100 parts of (A); defoaming agent: 2 parts of (1); an adhesion agent: 5 parts of a mixture; styrene-acrylic emulsion: and 25 parts.
The kaolin is 1250-mesh kaolin powder, and the Al and Si of the kaolin are 1.04. The slag is S105 slag. The cement is Po42.5 cement. The latex powder is 5044N.
The defoaming agent is an organic silicon defoaming agent. The adhesion agent is silica sol LUDOX HS-40. The sodium water glass is water glass.
The preparation method of the water glass comprises the following steps:
step 1) preparing a sodium silicate solution with the mass fraction of 40%;
step 2) preparing 10mol/L sodium hydroxide solution;
step 3), preparing a sodium silicate solution by mass: sodium hydroxide solution ═ 2.5: 1, adding a sodium hydroxide solution into a sodium silicate solution, and standing for 24 hours;
the sodium silicate is powder instant sodium silicate;
the sodium hydroxide is solid flaky sodium hydroxide, and the mass fraction of the sodium hydroxide is 98.5%.
Example 4
A preparation method of a normal-temperature-cured high-hardness steel bar anticorrosive paint comprises the following steps:
step 1, mixing 80 parts of kaolin, 5 parts of slag, 5 parts of cement and 2.5 parts of latex powder, uniformly stirring in a dry powder stirrer for 30 minutes, and packaging for later use;
step 2, uniformly mixing 90 parts of self-made water glass, 0.5 part of defoaming agent and 2 parts of adhesive and packaging for later use;
and 3, mixing the mixed powder obtained in the step 1 and the mixed liquid obtained in the step 2, wherein the solid mass: mixing the liquid with the mass ratio of 1:1.0, stirring and standing for 10 minutes;
and 4, adding 15 parts of styrene-acrylic emulsion into the liquid obtained in the step 3, and uniformly stirring to obtain the normal-temperature cured high-hardness steel bar anticorrosive paint.
Example 5
A preparation method of a normal-temperature-cured high-hardness steel bar anticorrosive paint comprises the following steps:
step 1, mixing 90 parts of kaolin, 8 parts of slag, 2.5 parts of cement and 2.5 parts of latex powder, uniformly stirring in a dry powder stirrer for 30 minutes, and packaging for later use;
step 2, uniformly mixing 90 parts of self-made water glass, 1 part of defoaming agent and 2.5 parts of adhesive and packaging for later use;
and 3, mixing the mixed powder obtained in the step 1 and the mixed liquid obtained in the step 2, wherein the solid mass: mixing the liquid with the mass ratio of 1:1.1, stirring and standing for 10 minutes;
and 4, adding 20 parts of styrene-acrylic emulsion into the liquid obtained in the step 3, and uniformly stirring to obtain the normal-temperature cured high-hardness steel bar anticorrosive paint.
Example 6
A preparation method of a normal-temperature-cured high-hardness steel bar anticorrosive paint comprises the following steps:
step 1, mixing 100 parts of kaolin, 10 parts of slag, 5 parts of cement and 5 parts of latex powder, uniformly stirring in a dry powder stirrer for 30 minutes, and packaging for later use;
step 2, uniformly mixing 100 parts of self-made water glass, 2 parts of defoaming agent and 5 parts of adhesive, and packaging for later use;
and 3, mixing the mixed powder obtained in the step 1 and the mixed liquid obtained in the step 2, wherein the solid mass: mixing the liquid with the mass ratio of 1:1.2, stirring and standing for 10 minutes;
and 4, adding 25 parts of styrene-acrylic emulsion into the liquid obtained in the step 3, and uniformly stirring to obtain the normal-temperature cured high-hardness steel bar anticorrosive paint.
The present invention has different embodiments according to different uses.
Example 7
The raw material ratio is as follows:
solid components and proportion:
874g of kaolin, 74g of slag, 50g of cement and 25g of latex powder;
liquid components and proportion:
900g of sodium silicate, 2g of defoaming agent, 12g of adhesive, 200g of styrene-acrylic emulsion,
the specific preparation process comprises the following steps:
1) mixing kaolin, slag, cement and latex powder according to a proper proportion, stirring and homogenizing in a dry powder stirrer for 30 minutes, and packaging for later use;
2) uniformly mixing the self-made water glass with the defoaming agent and the adhesive according to a ratio, and then packaging for later use;
3) and (2) uniformly mixing the raw materials in the step 1) and the raw materials in the step 2), adding 200g of styrene-acrylic emulsion, and uniformly stirring to obtain the coating.
Example 8
The raw material ratio is as follows:
solid components and proportion:
883g of kaolin, 67g of slag, 50g of cement and 30g of emulsion powder;
liquid components and proportion:
900g of sodium silicate, 3g of defoaming agent, 12g of adhesive and 250g of styrene-acrylic emulsion
The specific preparation process comprises the following steps:
1) mixing kaolin, slag, cement and latex powder according to a proper proportion, stirring and homogenizing in a dry powder stirrer for 30 minutes, and packaging for later use;
2) uniformly mixing the self-made water glass with the defoaming agent and the adhesive according to a ratio, and then packaging for later use;
3) and (3) uniformly mixing the raw materials in the step 1) and the raw materials in the step 2), adding 250g of styrene-acrylic emulsion, and uniformly stirring to obtain the coating.
Example 9
The raw material ratio is as follows:
solid components and proportion:
855g of kaolin, 95g of slag, 50g of cement and 30g of latex powder;
liquid components and proportion:
900g of sodium silicate, 3g of defoaming agent, 12g of adhesive and 250g of styrene-acrylic emulsion.
The specific preparation process comprises the following steps:
1) mixing kaolin, slag, cement and latex powder according to a proper proportion, stirring and homogenizing in a dry powder stirrer for 30 minutes, and packaging for later use;
2) uniformly mixing the self-made water glass with the defoaming agent and the adhesive according to a ratio, and then packaging for later use;
3) and (3) uniformly mixing the raw materials in the step 1) and the raw materials in the step 2), adding 250g of styrene-acrylic emulsion, and uniformly stirring to obtain the coating.
In order to better illustrate the present invention and facilitate understanding of the performance of the present invention, the room temperature curing high hardness steel bar anticorrosive coating provided in examples 7 to 9 is subjected to a performance test, and the test method adopts national standards, as shown in table 1 (table 1 is a list of methods and apparatuses used in the performance test):
TABLE 1 list of methods and instruments used for Performance testing
Table 2 shows the results of the performance tests of examples 1 to 3:
Claims (10)
1. the normal-temperature-cured high-hardness steel bar anticorrosive paint is characterized by comprising the following components in parts by weight: a solid component, a liquid component and a styrene-acrylic emulsion; the weight ratio of the solid component to the liquid component is 1: 0.9-1.0;
the solid components comprise: kaolin: 80-100 parts of a solvent; slag: 5-10 parts; cement: 1-5 parts; 1-5 parts of latex powder; the liquid components comprise: sodium water glass: 80-100 parts of a solvent; defoaming agent: 1-2 parts; an adhesion agent: 1-5 parts; styrene-acrylic emulsion: 15-25 parts.
2. The normal-temperature-curing high-hardness steel bar anticorrosive paint is characterized in that kaolin is 1250-mesh kaolin powder, and the ratio of Al to Si is 1.04.
3. The anticorrosive coating for normal-temperature-curing high-hardness reinforcing steel bar according to claim 1, wherein the slag is S105 slag.
4. The normal-temperature-curing high-hardness rebar anticorrosive paint as claimed in claim 1, wherein the cement is Po42.5 cement.
5. The normal-temperature-curing high-hardness rebar anticorrosive paint as claimed in claim 1, wherein the latex powder is 5044N rubber powder.
6. The normal-temperature-curing high-hardness rebar anticorrosive paint as claimed in claim 1, wherein the defoaming agent is an organic silicon defoaming agent.
7. The normal-temperature-curing high-hardness rebar anticorrosive paint as claimed in claim 1, wherein the adhesion agent is silica sol LUDOX HS-40.
8. The normal-temperature-curing high-hardness steel bar anticorrosive paint as claimed in claim 1, wherein the sodium water glass is water glass.
9. The normal-temperature curing high-hardness steel bar anticorrosive paint according to claim 8,
the preparation method of the water glass is characterized by comprising the following steps:
step 1) preparing a sodium silicate solution with the mass fraction of 40%;
step 2) preparing 10mol/L sodium hydroxide solution;
step 3), preparing a sodium silicate solution by mass: sodium hydroxide solution ═ 2.5: 1, adding a sodium hydroxide solution into a sodium silicate solution, and standing for 24 hours;
the sodium silicate is powder instant sodium silicate;
the sodium hydroxide is solid flaky sodium hydroxide, and the mass fraction of the sodium hydroxide is 98.5%.
10. A preparation method of a normal-temperature-cured high-hardness steel bar anticorrosive paint is characterized by comprising the following steps:
step 1, mixing 80-100 parts of kaolin, 5-10 parts of slag, 0-5 parts of cement and 0-5 parts of latex powder, uniformly stirring in a dry powder stirrer for 30 minutes, and packaging for later use;
step 2, uniformly mixing 80-100 parts of self-made water glass, 1-2 parts of defoaming agent and 1-5 parts of adhesive, and packaging for later use;
and 3, mixing the mixed powder obtained in the step 1 and the mixed liquid obtained in the step 2, wherein the solid mass: mixing the liquid with the mass ratio of 1: 1.0-1.2, stirring and standing for 10 minutes;
and 4, adding 15-25 parts of styrene-acrylic emulsion into the liquid obtained in the step 3, and uniformly stirring to obtain the normal-temperature cured high-hardness steel bar anticorrosive paint.
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| CN115926569A (en) * | 2023-01-18 | 2023-04-07 | 上海缔朴水性涂料有限公司 | Coating and preparation method and application thereof |
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