CN114656809A - Inorganic ceramic coating for building durability protection - Google Patents
Inorganic ceramic coating for building durability protection Download PDFInfo
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- CN114656809A CN114656809A CN202210250871.3A CN202210250871A CN114656809A CN 114656809 A CN114656809 A CN 114656809A CN 202210250871 A CN202210250871 A CN 202210250871A CN 114656809 A CN114656809 A CN 114656809A
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- 238000005524 ceramic coating Methods 0.000 title claims abstract description 20
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000003756 stirring Methods 0.000 claims abstract description 36
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002904 solvent Substances 0.000 claims abstract description 30
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910000077 silane Inorganic materials 0.000 claims abstract description 26
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 25
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 25
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000178 monomer Substances 0.000 claims abstract description 23
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 238000010276 construction Methods 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000004566 building material Substances 0.000 claims abstract description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 72
- 238000000576 coating method Methods 0.000 claims description 33
- 239000000243 solution Substances 0.000 claims description 28
- 239000011248 coating agent Substances 0.000 claims description 17
- 239000002270 dispersing agent Substances 0.000 claims description 14
- 238000011049 filling Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 14
- 238000002360 preparation method Methods 0.000 claims description 14
- 125000003944 tolyl group Chemical group 0.000 claims description 11
- 230000002378 acidificating effect Effects 0.000 claims description 7
- 230000002411 adverse Effects 0.000 claims description 7
- 238000009775 high-speed stirring Methods 0.000 claims description 7
- 239000011259 mixed solution Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 7
- 239000007822 coupling agent Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 abstract description 5
- 239000003973 paint Substances 0.000 description 9
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 239000004567 concrete Substances 0.000 description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical group CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical group CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 2
- -1 polysiloxane Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 108010009736 Protein Hydrolysates Proteins 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
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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
-
- 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
-
- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- 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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- 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)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses an inorganic ceramic coating for building durability protection, which comprises a component A and a component B; the component A comprises the following raw material components in parts by weight: 100 parts of silane monomer, 10-60 parts of solvent, 50-100 parts of silica sol and 0-5 parts of auxiliary agent; the component B comprises the following raw material components in parts by weight: 100 parts of solvent, 10-30 parts of nano magnesium oxide and 0.5-5 parts of auxiliary agent. The invention also discloses a method for forming the inorganic ceramic coating for durability protection on the building material, which comprises the steps of taking the component A solution and the component B solution with the mass ratio of 2:1, stirring and mixing the component A solution and the component B solution, uniformly mixing the component A solution and the component B solution, and then carrying out brushing construction, wherein the thickness of a once formed film is 120 mu m.
Description
Technical Field
The invention relates to the technical field of building coatings, in particular to an inorganic ceramic coating for building durability protection.
Background
The outer surface of a building is generally coated, and the purpose of the coating includes various purposes such as decoration, heat insulation, heat preservation, fire resistance, service life improvement and the like. For example, the surface of concrete is usually painted with a colored paint to achieve a decorative effect; the surfaces of stones and bricks are usually coated with transparent protective coatings, so that the effects of hydrophobicity and service life improvement are achieved; the surface of steel can be coated with special antirust paint, so that the steel has the functions of attractiveness and rust prevention, and meanwhile, the surface of part of indoor steel structure can be coated with fireproof paint, so that the structure is protected when a fire disaster happens.
The coating for protecting the durability of the outer surface of the building is one of building coatings, and has the function of preventing harmful substances in the environment from damaging steel and concrete by being coated on the outer surface of the building such as concrete, steel, stone and the like. Concrete and steel structures under corrosive environments such as seaside, saline-alkali soil, chemical plants, chemical ice salt and the like need surface durability protection. The currently used coatings include acrylic coatings, polyurethane coatings, epoxy resin coatings, fluorocarbon resin coatings, polysiloxane resin coatings and other organic coatings. The coatings usually have the defect of poor weather resistance because the basic film forming substances are organic high molecular materials, particularly, the coatings need to be coated again at intervals when the coatings are used outdoors, even fluorocarbon resin coatings and polysiloxane resin coatings with good weather resistance are used, the coating thickness directly determines the protection effect in the weather resistance protection of steel and concrete, and if the conventional common ceramic coatings are adopted, the coatings need to be coated for multiple times to achieve the ideal thickness. However, multiple painting results in high construction cost, and on the other hand, there may be a problem of binding force between the coatings painted each time, and factors such as dust on the surface of the coating, moisture in the air, etc. may affect the binding force between the coatings painted each time. Therefore, we improve the problem and propose an inorganic ceramic coating for building durability protection.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to an inorganic ceramic coating for building durability protection, which comprises a component A and a component B;
the component A comprises the following raw material components in parts by weight:
100 parts of silane monomer(s),
10-60 parts of a solvent, namely,
50-100 parts of silica sol,
0-5 parts of an auxiliary agent;
the component B comprises the following raw material components in parts by weight:
100 parts of a solvent, namely 100 parts of,
10-30 parts of nano magnesium oxide,
0.5-5 parts of an auxiliary agent.
In a preferred technical scheme of the invention, in the component A, the silane monomer is methyl phenyl dialkoxysilane, and the solvent is industrial ethanol.
As a preferable technical scheme of the invention, in the component A, the silica sol is acidic silica sol with the particle size of 20-30 nanometers, the solid content is 30%, and the auxiliary agent is a coupling agent with the model of KH 550.
As a preferable technical scheme of the invention, in the component B, the solvent is ethanol, and the auxiliary agent is a dispersing agent.
As a preferable technical scheme of the invention, in the component B, the particle size of the nano magnesium oxide is 30-40 nm.
A method of forming the durable, protective, inorganic ceramic coating of claim 1 on a building material, comprising:
preparation of the component A: adding 100kg of methyl phenyl dialkoxy silane monomer and 50kg of ethanol into a stirring tank, uniformly mixing and stirring, heating the mixed solution to 60 ℃, adding 50kg of silica sol into the stirring tank while stirring, continuing to stir and keeping the temperature of liquid in the tank at 60 +/-2 ℃ for 8 hours after the silica sol is added, stopping heating after 8 hours, and filling the liquid in the tank into a barrel;
b, preparation of a component: adding 20kg of nano magnesium oxide powder and 1kg of dispersing agent into 100kg of ethanol, uniformly dispersing the nano magnesium oxide into an ethanol solution by adopting an ultrasonic dispersion and high-speed stirring mode, and filling the ethanol solution into a barrel;
when the paint is used, the component A solution and the component B solution in the mass ratio of 2:1 are stirred and mixed, and the paint can be coated and constructed after the components are uniformly mixed, the thickness of a film formed at one time is 120 mu m, and the coating film has no visible cracks, orange peels and other adverse phenomena.
The beneficial effects of the invention are:
the invention introduces nano-scale magnesium oxide powder into a coating system, utilizes the chemical reaction of magnesium oxide and water to generate magnesium hydroxide, and simultaneously generates a small amount of expansion in volume, thereby counteracting the shrinkage in the film forming process of the ceramic coating, realizing that the once formed film thickness of the ceramic coating reaches more than 100 mu m, and the magnesium hydroxide generated by the reaction of the magnesium oxide and the water contains hydroxyl which can be well combined with silicon hydroxyl in silica sol and silane hydrolysate, thereby improving the hardness, wear resistance, compactness and the like of the coating and having higher practical value.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the steps of a method for producing a durable inorganic ceramic coating for protection of buildings according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The embodiment is as follows: as shown in figure 1, the inorganic ceramic coating for building durability protection comprises a component A and a component B;
the component A comprises the following raw material components in parts by weight:
100 parts of silane monomer(s),
10-60 parts of a solvent,
50-100 parts of silica sol,
0-5 parts of an auxiliary agent;
the component B comprises the following raw material components in parts by weight:
100 parts of a solvent, namely 100 parts of,
10-30 parts of nano magnesium oxide,
0.5-5 parts of an auxiliary agent.
In the component A, a silane monomer is methyl phenyl dialkoxy silane, and a solvent is industrial ethanol.
In the component A, the silica sol is acidic silica sol with the particle size of 20-30 nanometers, the solid content is 30%, and the auxiliary agent is a coupling agent with the model of KH 550.
Wherein, in the component B, the solvent is ethanol, and the auxiliary agent is a dispersant.
Wherein in the component B, the particle size of the nano magnesium oxide is 30-40 nm.
A method of forming a durable protective inorganic ceramic coating according to claim 1 on a building material, characterized in that:
preparation of the component A: adding 100kg of methyl phenyl dialkoxy silane monomer and 50kg of ethanol into a stirring tank, uniformly mixing and stirring, heating the mixed solution to 60 ℃, adding 50kg of silica sol into the stirring tank while stirring, continuing to stir and keeping the temperature of liquid in the tank at 60 +/-2 ℃ for 8 hours after the silica sol is added, stopping heating after 8 hours, and filling the liquid in the tank into a barrel;
b, preparation of a component: adding 20kg of nano magnesium oxide powder and 1kg of dispersing agent into 100kg of ethanol, uniformly dispersing the nano magnesium oxide into an ethanol solution by adopting an ultrasonic dispersion and high-speed stirring mode, and filling the ethanol solution into a barrel;
when the coating is used, the component A solution and the component B solution in the mass ratio of 2:1 are stirred and mixed, and the coating construction can be carried out after the components are uniformly mixed, the thickness of a once formed film is 120 mu m, and the coating film has no visible cracks, orange peel and other adverse phenomena.
Example 1:
the component A comprises the following components in percentage by weight: 100 parts of silane monomer, 50 parts of solvent and 50 parts of silica sol;
wherein the silane monomer adopts methyl phenyl dialkoxy silane, the solvent adopts industrial ethanol, the silica sol is acidic silica sol with the particle size of 20-30 nanometers, and the solid content is 30 percent;
the component B comprises the following components in percentage by weight: 100 parts of solvent, 20 parts of nano magnesium oxide and 1 part of auxiliary agent;
wherein the solvent is ethanol, the particle size of the nano magnesium oxide is 30-40 nanometers, and the auxiliary agent is a dispersing agent.
Preparation of the component A: adding 100kg of methyl phenyl dialkoxy silane monomer and 50kg of ethanol into a stirring tank, uniformly mixing and stirring, heating the mixed solution to 60 ℃, adding 50kg of silica sol into the stirring tank while stirring, continuing to stir and keeping the temperature of liquid in the tank at 60 +/-2 ℃ for 8 hours after the silica sol is added, stopping heating after 8 hours, and filling the liquid in the tank into a barrel to obtain the prepared component A;
b, preparation of a component: adding 20kg of nano magnesium oxide powder and 1kg of dispersant into 100kg of ethanol, uniformly dispersing the nano magnesium oxide into an ethanol solution by adopting an ultrasonic dispersion and high-speed stirring mode, and filling the ethanol solution into a barrel to obtain a prepared component B;
when the paint is used on site, the component A solution and the component B solution in the mass ratio of 2:1 are stirred and mixed, and brushing construction can be carried out after uniform mixing, the thickness of a once film is 120 mu m, and the coating film has no visible cracks, orange peel and other adverse phenomena.
Example 2:
the component A comprises the following components in percentage by weight: 100 parts of silane monomer, 20 parts of solvent, 80 parts of silica sol and 2 parts of auxiliary agent;
the silane monomer is phenyl trialkoxysilane, the solvent is industrial butanol, the silica sol is acidic silica sol with the particle size of 20-30 nanometers, the solid content is 30%, the auxiliary agent is a coupling agent, and the model is KH 550.
The component B comprises the following components in percentage by weight: 100 parts of solvent, 30 parts of nano magnesium oxide and 0.5 part of auxiliary agent;
wherein the solvent is butanol, the particle size of the nano magnesium oxide is 20-30 nanometers, and the auxiliary agent is a dispersing agent.
Preparation of the component A: adding 100kg of methyl phenyl dialkoxy silane monomer and 50kg of ethanol into a stirring tank, uniformly mixing and stirring, heating the mixed solution to 60 ℃, adding 50kg of silica sol into the stirring tank while stirring, continuing to stir and keeping the temperature of liquid in the tank at 60 +/-2 ℃ for 8 hours after the silica sol is added, stopping heating after 8 hours, and filling the liquid in the tank into a barrel to obtain the prepared component A;
b, preparation of a component: adding 20kg of nano magnesium oxide powder and 1kg of dispersant into 100kg of ethanol, uniformly dispersing the nano magnesium oxide into an ethanol solution by adopting an ultrasonic dispersion and high-speed stirring mode, and filling the ethanol solution into a barrel to obtain a prepared component B;
when the paint is used on site, the component A solution and the component B solution in the mass ratio of 2:1 are stirred and mixed, and brushing construction can be carried out after uniform mixing, the thickness of a once film is 120 mu m, and the coating film has no visible cracks, orange peel and other adverse phenomena.
Example 3:
the component A comprises the following components in percentage by weight: 100 parts of silane monomer, 50 parts of solvent, 100 parts of silica sol and 2 parts of auxiliary agent;
the silane monomer is methyl trimethoxy silane, the solvent is industrial butanol, the silica sol is acidic silica sol with the particle size of 20-30 nanometers, the solid content is 30%, the assistant is a coupling agent, and the model is KH 560.
The component B comprises the following components in percentage by weight: 100 parts of solvent, 30 parts of nano magnesium oxide and 1 part of auxiliary agent;
wherein the solvent is butanol, the particle size of the nano magnesium oxide is 20-30 nanometers, and the auxiliary agent is a dispersing agent.
Preparation of the component A: adding 100kg of methyl phenyl dialkoxy silane monomer and 50kg of ethanol into a stirring tank, uniformly mixing and stirring, heating the mixed solution to 60 ℃, adding 50kg of silica sol into the stirring tank while stirring, continuing to stir and keeping the temperature of liquid in the tank at 60 +/-2 ℃ for 8 hours after the silica sol is added, stopping heating after 8 hours, and filling the liquid in the tank into a barrel to obtain the prepared component A;
b, preparation of a component: adding 20kg of nano magnesium oxide powder and 1kg of dispersant into 100kg of ethanol, uniformly dispersing the nano magnesium oxide into an ethanol solution by adopting an ultrasonic dispersion and high-speed stirring mode, and filling the ethanol solution into a barrel to obtain a prepared component B;
when the paint is used on site, the component A solution and the component B solution in the mass ratio of 2:1 are stirred and mixed, and brushing construction can be carried out after uniform mixing, the thickness of a once film is 120 mu m, and the coating film has no visible cracks, orange peel and other adverse phenomena.
Example 4:
the component A comprises the following components in percentage by weight: 100 parts of silane monomer, 60 parts of solvent, 70 parts of silica sol and 1 part of auxiliary agent;
the silane monomer is methyl trimethoxy silane, the solvent is isopropanol, the silica sol is acidic silica sol with the particle size of 20-30 nanometers, the solid content is 30%, the assistant is a coupling agent, and the model is KH 560.
The component B comprises the following components in percentage by weight: 100 parts of solvent, 30 parts of nano magnesium oxide and 1 part of auxiliary agent;
wherein the solvent is isopropanol, the particle size of the nano-magnesia is 40-60 nanometers, and the auxiliary agent is a dispersant.
Preparation of the component A: adding 100kg of methyl phenyl dialkoxy silane monomer and 50kg of ethanol into a stirring tank, uniformly mixing and stirring, heating the mixed solution to 60 ℃, adding 50kg of silica sol into the stirring tank while stirring, continuing to stir and keeping the temperature of liquid in the tank at 60 +/-2 ℃ for 8 hours after the silica sol is added, stopping heating after 8 hours, and filling the liquid in the tank into a barrel to obtain the prepared component A;
b, preparation of a component: adding 20kg of nano magnesium oxide powder and 1kg of dispersant into 100kg of ethanol, uniformly dispersing the nano magnesium oxide into an ethanol solution by adopting an ultrasonic dispersion and high-speed stirring mode, and filling the ethanol solution into a barrel to obtain a prepared component B;
when the paint is used on site, the component A solution and the component B solution in the mass ratio of 2:1 are stirred and mixed, and brushing construction can be carried out after uniform mixing, the thickness of one-time film formation is 120 mu m, and the coating film has no visible cracks, orange peel and other adverse phenomena
Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Claims (6)
1. An inorganic ceramic coating for building durability protection is characterized by comprising a component A and a component B;
the component A comprises the following raw material components in parts by weight:
100 parts of silane monomer, namely, the silane monomer,
10-60 parts of a solvent, namely,
50-100 parts of silica sol,
0-5 parts of an auxiliary agent;
the component B comprises the following raw material components in parts by weight:
100 parts of a solvent, namely 100 parts of,
10-30 parts of nano magnesium oxide,
0.5-5 parts of an auxiliary agent.
2. The inorganic ceramic coating for building durability protection according to claim 1, wherein in the A component, the silane monomer is methyl phenyl dialkoxysilane, and the solvent is industrial ethanol.
3. The inorganic ceramic coating for building durability protection as claimed in claim 1, wherein in the component A, the silica sol is acidic silica sol with a particle size of 20-30 nm, the solid content is 30%, the assistant is a coupling agent, and the type is KH 550.
4. The inorganic ceramic coating for building durability protection according to claim 1, wherein in the component B, the solvent is ethanol, and the auxiliary agent is a dispersant.
5. The inorganic ceramic coating for building durability protection as claimed in claim 1, wherein in the component B, the particle size of the nano magnesium oxide is 30-40 nm.
6. A method of forming the durable, protective, inorganic ceramic coating of claim 1 on a building material, comprising:
preparation of the component A: adding 100kg of methyl phenyl dialkoxy silane monomer and 50kg of ethanol into a stirring tank, uniformly mixing and stirring, heating the mixed solution to 60 ℃, adding 50kg of silica sol into the stirring tank while stirring, continuing to stir and keeping the temperature of liquid in the tank at 60 +/-2 ℃ for 8 hours after the silica sol is added, stopping heating after 8 hours, and filling the liquid in the tank into a barrel;
b, preparation of a component: adding 20kg of nano magnesium oxide powder and 1kg of dispersing agent into 100kg of ethanol, uniformly dispersing the nano magnesium oxide into an ethanol solution by adopting an ultrasonic dispersion and high-speed stirring mode, and filling the ethanol solution into a barrel;
when the coating is used, the component A solution and the component B solution in the mass ratio of 2:1 are stirred and mixed, and the coating construction can be carried out after the components are uniformly mixed, the thickness of a once formed film is 120 mu m, and the coating film has no visible cracks, orange peel and other adverse phenomena.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210250871.3A CN114656809A (en) | 2022-03-15 | 2022-03-15 | Inorganic ceramic coating for building durability protection |
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| CN202210250871.3A CN114656809A (en) | 2022-03-15 | 2022-03-15 | Inorganic ceramic coating for building durability protection |
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