CN112029411A - Fireproof water-based inorganic coating and preparation method and application thereof - Google Patents
Fireproof water-based inorganic coating and preparation method and application thereof Download PDFInfo
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- 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
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- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- 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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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
- C09D5/1675—Polyorganosiloxane-containing compositions
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- 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
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- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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Abstract
The application belongs to the technical field of coatings, and particularly relates to a fireproof water-based inorganic coating, which comprises the following components in percentage by mass of 100 percent: 5-10% of water-based silicone resin emulsion, 8-10% of silica sol, 10-20% of silicate, 5-15% of titanium dioxide, 10-15% of calcium powder, 5-8% of additive, 3-5% of solvent and 35-45% of water. The application provides a fire prevention waterborne inorganic coating, has excellent fire prevention fire behavior, wear resistance, resistant stain nature, green to and stability can, be particularly useful for interior wall face and use.
Description
Technical Field
The application belongs to the technical field of coatings, and particularly relates to a fireproof water-based inorganic coating, a preparation method of the fireproof water-based inorganic coating, and application of the fireproof water-based inorganic coating.
Background
The inorganic paint is a paint using inorganic material as main film-forming material, and is a short name of all-inorganic mineral paint, and is widely used in daily fields of building, drawing and the like due to high performance. The inorganic coating is an inorganic polymeric coating which is composed of inorganic polymers, dispersed and activated metal, metal oxide nano materials, rare earth ultrafine powder and the like, and has the physical and chemical double protection functions. The composite material is firmly combined with a substrate through a chemical bond, has no pollution to the environment, has long service life and performance reaching the international advanced level, and is a high-tech upgrading product meeting the environmental protection requirement.
At present, the main film forming substances of the conventional inorganic coating are organic substances, and the conventional inorganic coating is easy to burn and generate smoke when meeting fire. In order to reduce the smoke generated by the burning of the coating in case of fire, the flame-retardant fireproof coating is invented. However, these coating film-forming materials are still non-combustible or flame-retardant organic compounds, which reduces the film-forming wear resistance of the coating and makes the wear resistance unable to meet the requirements of superior products.
Disclosure of Invention
The application aims to provide a fireproof water-based inorganic coating, a preparation method thereof and application of the fireproof water-based inorganic coating, and aims to solve the problem that the existing inorganic coating is difficult to have better flame retardant property and wear resistance at the same time to a certain extent.
In order to achieve the purpose of the application, the technical scheme adopted by the application is as follows:
in a first aspect, the present application provides a fireproof water-based inorganic coating, which comprises the following components, by taking the total mass of raw materials of the fireproof water-based inorganic coating as 100%:
in a second aspect, the present application provides a method for preparing a fireproof water-based inorganic coating, comprising the steps of:
mixing 5-10 parts of water-based silicone resin emulsion, 8-10 parts of silica sol, 10-20 parts of silicate, 15-30 parts of filler, 5-8 parts of additive, 3-5 parts of cosolvent and 35-45 parts of water to obtain the fireproof water-based inorganic coating.
In a third aspect, the present application provides an application of the fireproof water-based inorganic coating, wherein the fireproof water-based inorganic coating or the fireproof water-based inorganic coating prepared by the method is deposited on a wall surface, and dried to form a coating layer.
According to the fireproof water-based inorganic coating provided by the first aspect of the application, the water-based silicone resin emulsion is used as the fireproof inorganic coating to replace a common water-based acrylic coating, so that the fireproof flame retardant property and the stability of the inorganic coating are effectively improved. By compounding the components, the film forming performance of the inorganic coating is improved, the wear resistance, water resistance, fire resistance, stain resistance and other characteristics of the coating layer after film forming are improved, the VOC content is low and is lower than 50g/L, and the environment-friendly effect is achieved.
The preparation method of the fireproof water-based inorganic coating provided by the second aspect of the application is simple in process and suitable for large-scale production and application. The fireproof water-based inorganic coating prepared by the embodiment of the application has excellent fireproof flame retardant property, wear resistance, stain resistance, environmental friendliness and stability, and is particularly suitable for interior wall surfaces.
The application of the fire-proof water-based inorganic coating that this application third aspect provided directly deposits above-mentioned fire-proof water-based inorganic coating to the wall, and the drying can form the dope layer on the wall, and it is nimble convenient to use, extensive applicability.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application more clearly apparent, the present application is further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the present invention, the term "and/or" describes the association relationship of the associated objects, and means that there may be three relationships, for example, a and/or B, which may mean: a is present alone, A and B are present simultaneously, and B is present alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
In the present invention, "at least one" means one or more, "a plurality" means two or more. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, "at least one (one) of a, b, or c," or "at least one (one) of a, b, and c," may each represent: a, b, c, a-b (i.e., a and b), a-c, b-c, or a-b-c, wherein a, b, and c may be single or plural, respectively.
It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, some or all of the steps may be executed in parallel or executed sequentially, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The weight of the related components mentioned in the description of the embodiments of the present invention may not only refer to the specific content of each component, but also represent the proportional relationship of the weight among the components, and therefore, the content of the related components is scaled up or down within the scope disclosed in the description of the embodiments of the present invention as long as it is in accordance with the description of the embodiments of the present invention. Specifically, the mass in the description of the embodiments of the present invention may be a mass unit known in the chemical industry field such as μ g, mg, g, kg, etc.
The terms "first" and "second" are used for descriptive purposes only and are used for distinguishing purposes such as substances from one another, and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. For example, a first XX may also be referred to as a second XX, and similarly, a second XX may also be referred to as a first XX, without departing from the scope of embodiments of the invention. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The first aspect of the embodiments of the present application provides a fireproof water-based inorganic coating, wherein the fireproof water-based inorganic coating comprises the following components, by mass, based on 100% of the total mass of raw materials of the fireproof water-based inorganic coating:
according to the fireproof water-based inorganic coating provided by the first aspect of the application, the water-based silicone resin emulsion is used as the fireproof inorganic coating to replace a common water-based acrylic coating, and on one hand, the water-based silicone resin emulsion mainly comprises silicon-oxygen bonds, has excellent high temperature resistance and high thermal stability, and does not break or decompose chemical bonds of molecules under high temperature or radiation irradiation. The composite material can resist high temperature and low temperature, can be used in a wide temperature range, and has little change with temperature in chemical property and physical and mechanical property. Can effectively improve the fireproof and flame-retardant performance and stability of the inorganic coating. On the other hand, the water-based silicone resin emulsion has good compatibility with components such as silica sol, silicate, filler and the like, improves the film forming property of the inorganic coating by compounding with other components, improves the wear resistance of a coating layer after film forming, has low VOC content which is lower than 50g/L, and is green and environment-friendly. In addition, in the inorganic coating, the silica sol and the silicate are compounded, so that the water resistance, fire resistance, wear resistance, stain resistance and other characteristics of the inorganic coating layer can be effectively improved, the coating layer has better stability, and the washing resistance of the inorganic coating is greatly higher than that of a common interior wall coating and higher than that of an interior wall emulsion paint excellent product.
In some embodiments, the aqueous silicone emulsion comprises: the water-based silicone resin emulsion comprises at least one of fluorosilicone resin emulsion, phenyl silicone resin emulsion, methyl phenyl silicone resin emulsion, silicone acrylic emulsion, pure silicone resin emulsion, silicone polyether emulsion, high-temperature-resistant silicone resin emulsion and polymethyl silicone resin emulsion, and the water-based silicone resin emulsion has the characteristics of better high and low temperature resistance, dielectric property, chemical stability, weather resistance, incombustibility, non-adhesiveness, low friction coefficient and the like. The fireproof and flame-retardant performance of the inorganic coating can be effectively improved; and the inorganic coating has better compatibility with other components, improves the dispersion stability of the inorganic coating and is convenient to apply and construct. The mass content of the water-based silicone resin emulsion in the fireproof water-based inorganic coating is 5-10%, and the content effectively ensures the fireproof flame retardant property, the wear resistance and the weather resistance of the inorganic coating, improves the rheological property of the coating, improves the stability of the inorganic coating, and improves the water resistance, especially early water resistance. If the addition amount of the water-based silicone resin emulsion is too low, the flame retardance, wear resistance and weather resistance of the inorganic coating are not improved well; if the amount of the aqueous silicone resin emulsion added is too large, the compatibility with potassium silicate in the inorganic coating material is deteriorated, which results in increased viscosity and reverse thickening, and the balance of air permeability and water absorption of the inorganic coating material is also deteriorated.
In some embodiments, the co-solvents include: at least one of glycol dodecate, dipropylene glycol n-butyl ether, tripropylene glycol n-butyl ether and dibutyl phthalate, and the cosolvent can effectively improve the dispersion stability of each component in the inorganic coating in water, prevent the components from coagulating, prolong the storage time of the coating and is more beneficial to construction application. The cosolvents such as dodecanol ester and the like in the embodiment of the application have very good hydrolytic stability, can be used together with various emulsions including high-pH emulsions, can be absorbed on emulsion particles, soften the particles to cause better fusion, and can effectively coalesce the emulsion particles. And the freezing point of the dodecyl alcohol ester is very low, so that the weather resistance of the inorganic coating is further ensured. In the inorganic coating provided by the embodiment of the application, the mass content of the cosolvent is 3-5%, the boring dispersion stability is effectively ensured, if the addition amount is too much, the content of other components in the coating can be reduced, and the fireproof, flame-retardant, wear-resistant and weather-resistant performances of a coating film layer can be reduced.
In some embodiments, the silica sol has a silica content of 20 to 40%. On one hand, the silica sol has good dispersibility, high temperature resistance and permeability, has the characteristics of film forming dissolution in the inorganic coating, has water resistance and heat resistance obviously superior to those of organic coatings, is compact and harder in coating, does not generate static electricity, is difficult to adhere various dust in the air, and has strong pollution resistance. On the other hand, the silica sol has a relatively large specific surface area, small colloidal particles and fine particles, has strong permeability to the base layer, can permeate into the base layer through capillaries, and can react with calcium hydroxide in the wall concrete base layer to generate calcium silicate, so that the inorganic coating has strong binding power. The silica sol with high silica content is more favorable for improving the characteristics of weather resistance, pollution resistance, flame retardance and the like of the inorganic coating.
In some embodiments, the silicate comprises: the silicate is added into the inorganic coating, and after the coating is formed into a film and solidified, the silicate is hardened to form a silicon dioxide net-shaped framework, so that the strength of the coating film is reduced slightly at high temperature, the coating film has strong high-temperature resistance, and the fireproof and flame-retardant performance of the coating layer is improved. In addition, after the silicate solution in the coating is deposited on the wall surface of the substrate, the silicate solution can permeate into gaps and pores, and can block capillary channels after being cured, so that the bonding compactness of the inorganic coating layer and the wall surface substrate is improved, and the inorganic coating layer is not easy to drop.
According to the embodiment of the application, the silica sol and the silicate are compounded in the inorganic coating, so that the flame retardant property and the stability of the coating can be better improved, wherein the content of the silica sol is 8-10%, the content of the silicate is 10-20%, the silica sol and the silicate have a better synergistic effect, the problem that the volume shrinkage rate of the silica sol is large in a film forming process can be better solved, and the compactness and the stability of a coating film layer are improved.
In some embodiments, the filler comprises (1-3) by mass: (2-3), wherein the titanium dioxide has high thermal stability, and the rutile type titanium dioxide and the anatase type titanium dioxide both have good thermal stability and good covering capability; the calcium powder has the characteristics of difficult sedimentation, easy dispersion, good luster and the like of the coating, and has the fireproof characteristic. By using the titanium dioxide and the calcium powder in a synergistic manner, the strength and the covering capability of the coating after film formation can be improved, the thermal stability is good, and the fireproof flame retardance of the coating film layer can be further improved.
In some embodiments, the additives comprise: at least one of pH regulator, defoaming agent, wetting agent, stabilizer, dispersant and thickening rheological agent. In a further embodiment, in the fire-retardant aqueous inorganic coating, the additives include: 0.5 to 1.5 percent of pH regulator, 0.1 to 0.3 percent of defoaming agent, 0.3 to 0.5 percent of wetting agent, 0.5 to 1 percent of stabilizer, 0.7 to 1.5 percent of dispersant and 1 to 2 percent of thickening rheological agent. In the embodiment of the application, the pH regulator can adjust the pH of the inorganic coating to increase the stability of the coating; the defoaming agent can eliminate mechanical and chemical bubbles generated in the dispersion and construction processes; the wetting agent can wet the surface of the salt filler to assist dispersion and prevent sedimentation; the stabilizer can reduce the internal curing reaction of the inorganic coating and improve the viscosity stability of the coating; the dispersing agent is used for dissolving solid particles in the liquid to prevent the solid particles from settling and coagulating; the thickening rheological agent can improve the workability and the anti-settling property. The comprehensive performance of the coating is adjusted by adding components such as a pH regulator, a defoaming agent, a wetting agent, a stabilizer, a dispersing agent, a thickening rheological agent and the like.
In some embodiments, the pH adjusting agent comprises: at least one of multifunctional auxiliary AMP-95, ammonia water and potassium hydroxide. By adjusting the pH value of the inorganic coating, the coating has better dispersion stability. In some embodiments, the pH of the coating is adjusted to 11-11.5 by using at least one regulator of multifunctional auxiliary agents AMP-95, ammonia water and potassium hydroxide, and the range enables the inorganic coating to be more stable.
In some embodiments, the defoaming agent comprises: the defoaming agent is at least one of polyether defoaming agent, organic silicon defoaming agent and polyether modified polysiloxane defoaming agent, and the defoaming agent has strong defoaming capability and can effectively prevent the paint from generating gas during preparation, storage and use. And the dosage is small, the performance of other components in the coating is not influenced, the heat resistance is good, and the oxidation resistance is strong.
In some embodiments, the stabilizing agent comprises: at least one of inorganic lead salt, inorganic composite salt and fatty acid lead soap can increase the dispersion stability of the coating, prevent the components in the coating from coagulating and is more beneficial to storage and use. The inorganic lead salt, the inorganic composite salt and the fatty acid lead soap have good thermal stability, and have the characteristics of excellent processability, weather resistance, light stability and the like.
In some embodiments, the wetting agent comprises: at least one of nonionic phenol polyoxyethylene ether, nonionic alkyl polyoxyethylene ether and anionic phenol polyoxyethylene ether can reduce the surface energy of components such as titanium dioxide, calcium powder and the like in the coating, so that solid materials are more easily wetted by water, the dispersion stability of the coating can be improved, the surface tension or interfacial tension of the coating can be reduced, and the inorganic coating has better film-forming performance.
In some embodiments, the thickening rheology agent comprises: the paint comprises at least one of alkali swelling ASE-60, alkali swelling HIS305, hydroxyethyl cellulose and polyurethane thickening agents, and the thickening rheological agents can effectively change the fluid characteristics of a paint system and enable the paint system to have thixotropy, so that the paint is endowed with good storage stability and application property. The viscosity of the coating is improved during storage, the separation and sedimentation of the coating are inhibited, and the sagging phenomenon after the inorganic coating is coated is prevented.
In some embodiments, the dispersant comprises: at least one of anionic dispersant, cationic dispersant, non-ionic dispersant, amphoteric dispersant and polymer dispersant, and these dispersants have high dispersivity, high heat stability and high flowability.
In some embodiments, the fire-retardant aqueous inorganic coating material comprises, based on 100% by mass of the total of the ingredients: 40% of water, 6% of water-based silicone resin emulsion, 12% of silica sol, 10% of potassium silicate, 8% of titanium dioxide, 14% of calcium powder, 1% of pH regulator, 0.3% of defoamer, 0.5% of wetting agent, 1% of stabilizer, 1.5% of dispersant, 1.7% of thickening rheological agent and 4% of cosolvent. In other embodiments, the fire-retardant aqueous inorganic coating material comprises, based on 100% by weight of the total composition of the ingredients: 39% of water, 8% of water-based silicone resin emulsion, 14% of silica sol, 8% of potassium silicate, 10% of titanium dioxide, 12% of calcium powder, 0.8% of pH regulator, 0.2% of defoamer, 0.5% of wetting agent, 0.8% of stabilizer, 1.2% of dispersant, 1.5% of thickening rheological agent and 4% of cosolvent. In other embodiments, the fire-retardant aqueous inorganic coating material comprises, based on 100% by weight of the total composition of the ingredients: 35% of water, 10% of water-based silicone resin emulsion, 16% of silica sol, 12% of potassium silicate, 6% of titanium dioxide, 13% of calcium powder, 0.6% of pH regulator, 0.2% of defoamer, 0.4% of wetting agent, 0.6% of stabilizer, 1% of dispersant, 1.2% of thickening rheological agent and 4% of cosolvent. In some embodiments, the water may be deionized water.
The fireproof water-based inorganic coating provided by the embodiment of the application can be prepared by the method in the following embodiment.
In a second aspect, embodiments of the present application provide a method for preparing a fireproof water-based inorganic coating, including the steps of:
mixing 5-10 parts of water-based silicone resin emulsion, 8-10 parts of silica sol, 10-20 parts of silicate, 15-30 parts of filler, 5-8 parts of additive, 3-5 parts of cosolvent and 35-45 parts of water to obtain the fireproof water-based inorganic coating.
According to the preparation method of the fireproof water-based inorganic coating provided by the second aspect of the application, the fireproof water-based inorganic coating can be prepared by mixing the water-based silicone resin emulsion, the silica sol, the silicate, the filler, the additive, the cosolvent and the water according to the formula amount, and the preparation method is simple in process and suitable for large-scale production and application. The fireproof water-based inorganic coating prepared by the embodiment of the application has excellent fireproof flame retardant property, wear resistance, stain resistance, environmental friendliness and stability, and is particularly suitable for interior wall surfaces.
In some embodiments, the aqueous silicone emulsion comprises: at least one of fluorosilicone resin emulsion, phenyl silicone resin emulsion, methyl phenyl silicone resin emulsion, silicone acrylic emulsion, pure silicone resin emulsion, silicone polyether emulsion, high temperature resistant silicone resin emulsion and polymethyl silicone resin emulsion.
In some embodiments, the co-solvents include: at least one of glycol dodecate, dipropylene glycol n-butyl ether, tripropylene glycol n-butyl ether and dibutyl phthalate.
In some embodiments, the silica sol has a silica content of 20 to 40%.
In some embodiments, the filler comprises (1-3) by mass: (2-3) titanium dioxide and calcium powder.
In some embodiments, the silicate comprises: potassium silicate and/or sodium silicate.
In some embodiments, the additives comprise: at least one of pH regulator, defoaming agent, wetting agent, stabilizer, dispersant and thickening rheological agent.
The beneficial effects of the above embodiments of the present application are discussed in the foregoing, and are not described herein again.
In some embodiments, the step of mixing comprises: after the additive and water are mixed evenly, the filler is added and mixed for more than 30 minutes under the stirring condition; and adding the water-based silicone resin emulsion, the silica sol, the silicate, the thickening agent and the pH regulator, and mixing for 10-60 minutes to obtain the fireproof water-based inorganic coating. This compounding order of this application more is favorable to making each raw materials component intensive dispersion mix in the coating, prevents raw materials component dispersion inequality, leads to reducing dispersion, storage, the construction stability of coating.
In a third aspect of the embodiments of the present application, there is provided an application of the fireproof water-based inorganic coating, in which the fireproof water-based inorganic coating or the fireproof water-based inorganic coating prepared by the above method is deposited on a wall surface, and dried to obtain a coating layer.
The application of the fire-proof water-based inorganic coating that this application third aspect provided directly deposits above-mentioned fire-proof water-based inorganic coating to the wall, and the drying can form the dope layer on the wall, and it is nimble convenient to use, extensive applicability.
In some embodiments, the step of depositing the fire-blocking aqueous inorganic coating onto the wall surface comprises: firstly, performing foundation treatment on a wall surface, removing sundries on the wall surface, and performing putty coating treatment on the wall surface; then, diluting the fireproof water-based inorganic coating to a proper construction viscosity value of 50-60KU with water, carrying out air spraying or airless spraying or roller coating on the wall surface coated with the primer, and naturally drying to form a coating layer with the thickness of 30-50 um; and finally, opening indoor doors and windows for ventilation to perform air circulation, and naturally drying for 2-3 h.
In order to make the details and operations of the above-mentioned embodiments of the present invention clearly understood by those skilled in the art and to make the progress of the fire-retardant water-based inorganic coating and the preparation method thereof obvious, the above-mentioned technical solutions are illustrated by the following examples.
Example 1
The fireproof water-based inorganic coating comprises the following components in percentage by mass of 100 percent of the total mass of raw materials of the fireproof water-based inorganic coating: 40% of deionized water, 6% of water-based silicone resin emulsion, 12% of silica sol, 10% of potassium silicate, 8% of titanium dioxide, 14% of calcium powder, 1% of pH regulator, 0.3% of defoamer, 0.5% of wetting agent, 1% of stabilizer, 1.5% of dispersant, 1.7% of thickening rheological agent and 4% of cosolvent.
The preparation method comprises the following steps:
1. and (3) metering deionized water into a cylinder in a stirring kettle, adding a pH regulator, a defoaming agent, a wetting agent, rutile titanium dioxide and light calcium under stirring, and dispersing at a high speed for 30 minutes.
2. Adding inorganic silicone resin emulsion, a thickening rheological agent, decaglycol ester and deionized water, adding a pH regulator, regulating the pH value to 11-11.5, and filtering to obtain the fireproof water-based inorganic coating.
Example 2
The fireproof water-based inorganic coating comprises the following components in percentage by mass of 100 percent of the total mass of raw materials of the fireproof water-based inorganic coating: 39% of deionized water, 8% of water-based silicone resin emulsion, 14% of silica sol, 8% of potassium silicate, 10% of titanium dioxide, 12% of calcium powder, 0.8% of pH regulator, 0.2% of defoamer, 0.5% of wetting agent, 0.8% of stabilizer, 1.2% of dispersant, 1.5% of thickening rheological agent and 4% of cosolvent.
The preparation method comprises the following steps:
1. and (3) metering deionized water into a cylinder in a stirring kettle, adding a pH regulator, a defoaming agent, a wetting agent, rutile titanium dioxide and light calcium under stirring, and dispersing at a high speed for 30 minutes.
2. Adding inorganic silicone resin emulsion, a thickening rheological agent, decaglycol ester and deionized water, adding a pH regulator, regulating the pH value to 11-11.5, and filtering to obtain the fireproof water-based inorganic coating.
Example 3
The fireproof water-based inorganic coating comprises the following components in percentage by mass of 100 percent of the total mass of raw materials of the fireproof water-based inorganic coating: 35% of deionized water, 10% of water-based silicone resin emulsion, 16% of silica sol, 12% of potassium silicate, 6% of titanium dioxide, 13% of calcium powder, 0.6% of pH regulator, 0.2% of defoaming agent, 0.4% of wetting agent, 0.6% of stabilizer, 1% of dispersant, 1.2% of thickening rheological agent and 4% of cosolvent.
The preparation method comprises the following steps:
1. and (3) metering deionized water into a cylinder in a stirring kettle, adding a pH regulator, a defoaming agent, a wetting agent, rutile titanium dioxide and light calcium under stirring, and dispersing at a high speed for 30 minutes.
2. Adding inorganic silicone resin emulsion, a thickening rheological agent, decaglycol ester and deionized water, adding a pH regulator, regulating the pH value to 11-11.5, and filtering to obtain the fireproof water-based inorganic coating.
Further, in order to verify the progress of the fireproof water-based inorganic coating in the embodiment of the application, the fireproof water-based inorganic coating in the embodiment 1-3 is coated on the inner wall to form a coating layer, and the specific steps are as follows:
1. performing foundation treatment on the wall surface, removing sundries on the wall surface, and performing putty coating treatment on the wall surface;
2. diluting the fireproof water-based inorganic coating of the embodiment 1-3 to a proper construction viscosity value of 50-60KU by using water, carrying out air spraying or airless spraying or roller coating on the wall surface coated with the primer, and naturally drying to form a coating layer with the thickness of 50 um;
3. and opening the indoor door and window for ventilation to perform air circulation, naturally drying for 2-3h, and curing the coating layer.
With reference to the requirements of GB 18582-:
TABLE 1
According to the test results, the coating layer prepared by the waterproof inorganic coating in the embodiment 1-3 has good fire resistance; the VOC content is low and is lower than 40g/L, so that the construction environmental protection safety of the coating inner wall is high. In addition, the inorganic coating has high hardness after film forming, so that the washing resistance is greatly improved.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. The fireproof water-based inorganic coating is characterized by comprising the following components in percentage by mass of 100 percent of the total mass of raw materials of the fireproof water-based inorganic coating:
2. the flameproof aqueous inorganic coating of claim 1, wherein the aqueous silicone emulsion comprises: at least one of fluorosilicone resin emulsion, phenyl silicone resin emulsion, methyl phenyl silicone resin emulsion, silicone acrylic emulsion, pure silicone resin emulsion, silicone polyether emulsion and polymethyl silicone resin emulsion.
3. A flameproof aqueous inorganic coating material according to claim 1 or 2, characterized in that the co-solvent comprises: at least one of glycol tridecyl ester, dipropylene glycol n-butyl ether, tripropylene glycol n-butyl ether and dibutyl phthalate; and/or
The content of silicon dioxide in the silica sol is 20-40%; and/or
The silicate includes: potassium silicate and/or sodium silicate; and/or
The filler comprises the following components in percentage by mass (1-3): (2-3) titanium dioxide and calcium powder; and/or
The additive comprises: at least one of pH regulator, defoaming agent, wetting agent, stabilizer, dispersant and thickening rheological agent.
4. The fireproof aqueous inorganic coating material of claim 3, wherein the pH adjuster comprises: at least one of multifunctional auxiliary agents AMP-95, ammonia water and potassium hydroxide; and/or
The defoaming agent comprises: at least one of a polyether defoaming agent, a silicone defoaming agent and a polyether-modified polysiloxane defoaming agent; and/or
The stabilizer comprises: at least one of inorganic lead salt, inorganic composite salt and fatty acid lead soap; and/or
The wetting agent comprises: at least one of nonionic phenol polyoxyethylene ether, nonionic alkyl polyoxyethylene ether and anionic phenol polyoxyethylene ether; and/or
The thickened rheology agent comprises: at least one of alkali swelling ASE-60, alkali swelling HIS305, hydroxyethyl cellulose and polyurethane thickener; and/or
The dispersant comprises: at least one of an anionic dispersant, a cationic dispersant, a nonionic dispersant, an amphoteric dispersant, and a polymeric dispersant.
5. The fireproof aqueous inorganic coating material according to claim 4, wherein the fireproof aqueous inorganic coating material has a pH value of 11 to 11.5; and/or
In the fireproof water-based inorganic coating, the additives include: 0.5 to 1.5 percent of pH regulator, 0.1 to 0.3 percent of defoaming agent, 0.3 to 0.5 percent of wetting agent, 0.5 to 1 percent of stabilizer, 0.7 to 1.5 percent of dispersant and 1 to 2 percent of thickening rheological agent.
6. The fireproof aqueous inorganic coating material according to claim 5, comprising, based on 100% by mass of the fireproof aqueous inorganic coating material raw material: 40% of water, 6% of water-based silicone resin emulsion, 12% of silica sol, 10% of potassium silicate, 8% of titanium dioxide, 14% of calcium powder, 1% of pH regulator, 0.3% of defoamer, 0.5% of wetting agent, 1% of stabilizer, 1.5% of dispersant, 1.7% of thickening rheological agent and 4% of cosolvent; or
Comprises the following components: 39% of water, 8% of water-based silicone resin emulsion, 14% of silica sol, 8% of potassium silicate, 10% of titanium dioxide, 12% of calcium powder, 0.8% of pH regulator, 0.2% of defoaming agent, 0.5% of wetting agent, 0.8% of stabilizer, 1.2% of dispersant, 1.5% of thickening rheological agent and 4% of cosolvent; or
Comprises the following components: 35% of water, 10% of water-based silicone resin emulsion, 16% of silica sol, 12% of potassium silicate, 6% of titanium dioxide, 13% of calcium powder, 0.6% of pH regulator, 0.2% of defoamer, 0.4% of wetting agent, 0.6% of stabilizer, 1% of dispersant, 1.2% of thickening rheological agent and 4% of cosolvent.
7. A preparation method of a fireproof water-based inorganic coating is characterized by comprising the following steps:
mixing 5-10 parts of water-based silicone resin emulsion, 8-10 parts of silica sol, 10-20 parts of silicate, 15-30 parts of filler, 5-8 parts of additive, 3-5 parts of cosolvent and 35-45 parts of water to obtain the fireproof water-based inorganic coating.
8. The method of claim 7, wherein the aqueous silicone emulsion comprises: at least one of fluorosilicone resin emulsion, phenyl silicone resin emulsion, methyl phenyl silicone resin emulsion, silicone acrylic emulsion, pure silicone resin emulsion, silicone polyether emulsion and polymethyl silicone resin emulsion; and/or
The cosolvent comprises: at least one of glycol tridecyl ester, dipropylene glycol n-butyl ether, tripropylene glycol n-butyl ether and dibutyl phthalate; and/or
The content of silicon dioxide in the silica sol is 20-40%; and/or
The filler comprises the following components in percentage by mass (1-3): (2-3) titanium dioxide and calcium powder; and/or
The silicate includes: potassium silicate and/or sodium silicate; and/or
The additive comprises: at least one of pH regulator, defoaming agent, wetting agent, stabilizer, dispersant and thickening rheological agent.
9. The method of claim 8, wherein the fire-retardant aqueous inorganic coating composition,
the step of mixing treatment comprises: after the additive and water are uniformly mixed, the filler is added and mixed for more than 30 minutes under the stirring condition; and adding the aqueous silicone resin emulsion, the silica sol, the silicate, the thickener and the pH regulator, and mixing for 10-60 minutes to obtain the fireproof aqueous inorganic coating.
10. Use of a fire-retardant aqueous inorganic coating material, wherein the fire-retardant aqueous inorganic coating material according to any one of claims 1 to 6 or the fire-retardant aqueous inorganic coating material prepared by the method according to any one of claims 7 to 9 is deposited on a wall surface and dried to form a coating layer.
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