CN113845785A - Light-resistant and water-resistant building interior and exterior wall glaze and preparation method thereof - Google Patents
Light-resistant and water-resistant building interior and exterior wall glaze and preparation method thereof Download PDFInfo
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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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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/32—Radiation-absorbing 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
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- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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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
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
The invention discloses a light-resistant and water-resistant building interior and exterior wall glaze and a preparation method thereof, wherein the raw materials at least comprise the following components in percentage by mass: 10-15% of cationic emulsion, 5-15% of sol colloid, 5-10% of modified nanoparticles, 30-50% of mineral salt, 1-5% of auxiliary agent and the balance of deionized water. The wall glaze prepared by the method has good light-resistant waterproof cleaning performance, effectively reduces the content of harmful gases such as formaldehyde and the like, is suitable for popularization in the field of wall coatings, and has wide development prospect.
Description
Technical Field
The invention relates to the field of building coatings, in particular to a light-resistant and water-resistant building interior and exterior wall glaze and a preparation method thereof.
Background
At present, the coating of the building material adopted in the market is usually an epoxy resin raw material, and pigments, solvents, auxiliaries and the like are added. However, in the building decoration industry of today, the existing common interior wall coating has obvious defects of poor covering capability, easy powder removal, poor water washing resistance and the like, and along with the social progress and economic development, the requirements of people on building wall coatings do not meet the requirements of simple coating coatings.
In recent years, wall glazes have gained increased attention as an emerging architectural coating. Meanwhile, some existing wall glazes have the advantages of being simple, smooth, corrosion-resistant, friction-resistant and the like, are single in function, cannot be well suitable for external wall surfaces and special internal wall surfaces of buildings, and limit the application environment and field of wall glaze materials, so that the market application range of the wall glazes is finally limited.
Therefore, a multifunctional wall glaze with various excellent performances such as light resistance, water washing resistance, pollution resistance and the like is needed to expand the application environment and field of wall glaze materials and enhance the market application range of the wall glaze.
Disclosure of Invention
In order to solve the problems, the invention provides a light-resistant and water-wash-resistant building interior and exterior wall glaze which is prepared from the following raw materials in percentage by mass: 10-15% of cationic emulsion, 5-15% of sol colloid, 5-10% of modified nanoparticles, 30-50% of mineral salt, 1-5% of auxiliary agent and the balance of deionized water.
In a preferred embodiment, the cationic emulsion is at least one of cationic silicone emulsion, cationic polyacrylamide emulsion, cationic styrene-acrylic emulsion, cationic silicone-acrylic emulsion and cationic acrylic emulsion.
As a preferable scheme, the sol colloid is nano silica sol; the mass ratio of the nano silica sol to the cationic emulsion is 3-5: 7 to 7.5.
As a preferable scheme, the modified nanoparticles are at least one of modified titanium dioxide, modified zinc oxide, modified antimony dioxide and modified carbon nitride.
In a preferred embodiment, the mineral salt is at least one of a sodium salt, a calcium salt, a magnesium salt, and a zinc salt.
In a preferred embodiment, the auxiliary agent is at least one of a calcium zinc stabilizer, a silane coupling agent, a defoaming agent and a bactericide.
As a preferable scheme, the particle size of the modified nanoparticles is 80-250 nm.
Preferably, the particle fineness of the wall glaze is less than or equal to 40 microns.
As a preferable scheme, the mass ratio of the cationic emulsion to the mineral salt is 7-7.5: 20 to 24.
The invention provides a preparation method of the light-resistant and water-wash-resistant building interior and exterior wall glaze, which at least comprises the following steps: (1) sequentially adding the required raw materials into a reaction container, and stirring for 80-100 minutes at 1200-1300 rmp; (2) adding an auxiliary agent, reducing the stirring speed to 300-400 rmp, and stirring for 40-60 minutes to obtain the product.
Has the advantages that:
1. according to the invention, through reasonable proportioning of the raw materials and optimal selection of the related auxiliary raw materials, the wall glaze with multiple excellent performances such as excellent light resistance, washing resistance and stain resistance is prepared, the problems that the wall glaze in the prior art is single in advantage and not easy to be applied to the exterior of buildings and other industries are solved, the application environment and field of the wall glaze material are expanded, and the market application range of the wall glaze is enlarged.
2. According to the invention, the wall glaze has good absorption effect on ultraviolet wave bands and visible light wave bands through the excellent optical performance of the modified titanium dioxide, and the anti-pollution and water washing resistance of the wall glaze are further effectively enhanced while the light resistance of the wall glaze is fully solved.
3. In the application of the invention, through reasonable compounding and use of the cationic emulsion, the leveling property and the recoating property of the wall glaze are effectively enhanced, and meanwhile, the adsorption effect of the synergistic effect of the wall glaze component and titanium dioxide in the air on molecules such as formaldehyde and the like is effectively enhanced, so that an excellent indoor air purification effect is achieved.
Detailed Description
The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.
The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.
Approximating language, as used herein throughout the specification and claims, is intended to modify a quantity, such that the invention is not limited to the specific quantity, but includes portions that are literally received for modification without substantial change in the basic function to which the invention is related. Accordingly, the use of "about" to modify a numerical value means that the invention is not limited to the precise value. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. In the present description and claims, range limitations may be combined and/or interchanged, including all sub-ranges contained therein if not otherwise stated.
In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.
In order to solve the problems, the invention provides a light-resistant and water-wash-resistant building interior and exterior wall glaze which is prepared from the following raw materials in percentage by mass: 10-15% of cationic emulsion, 5-15% of sol colloid, 5-10% of modified nanoparticles, 30-50% of mineral salt, 1-5% of auxiliary agent and the balance of deionized water.
In some preferred embodiments, the cationic emulsion is at least one of a cationic silicone emulsion, a cationic polyacrylamide emulsion, a cationic styrene-acrylic emulsion, a cationic silicone-acrylic emulsion, and a cationic acrylic emulsion.
In some preferred embodiments, the cationic emulsion is a cationic silicone emulsion and a cationic polyacrylamide emulsion.
In some preferred embodiments, the mass ratio of the cationic silicone emulsion to the cationic polyacrylamide emulsion is 3-4: 10 to 11.
In some preferred embodiments, the cationic silicone emulsion and the cationic polyacrylamide emulsion are present in a mass ratio of 3: 11.
in some preferred embodiments, the cationic silicone emulsion is a cationic hydroxy silicone oil emulsion.
According to the invention, the leveling performance of the wall glaze can be effectively improved by compounding the added cationic hydroxyl silicone oil emulsion and the cationic polyacrylamide emulsion, and the wall glaze has a certain harmful gas removal effect. The applicant speculates that: the siloxane structure in the compounded cationic emulsion can react with carbon element substances in the air to form a smooth protective film layer, and simultaneously, because the precipitation of mineral salt is promoted by the cationic polyacrylamide emulsion to cooperatively form a film formed by combining a plurality of microcrystalline structures, the micro pores on the film layer not only have good ventilation effect, but also can adsorb a certain amount of harmful gases such as formaldehyde and the like through pore space adsorption effect, and when the harmful gases contact with the siloxane structure in the film layer, corresponding free gas molecules can be adsorbed, so that a certain harmful gas removing effect is achieved. When the content of the cationic polyacrylamide emulsion is too high, too-compact film pores are easily formed, so that the adsorption performance of the wall glaze is weakened; when the content is too small, a wall glaze film layer with larger pores is easily formed, thereby weakening the water washing resistance of the wall glaze.
In some preferred embodiments, the sol-gel is a nano-silica sol; the mass ratio of the nano silica sol to the cationic emulsion is 3-5: 7 to 7.5.
In some preferred embodiments, the mass ratio of the nanosilica sol to the cationic emulsion is 4: 7.
in some preferred embodiments, the modified nanoparticles are at least one of modified titanium dioxide, modified zinc oxide, modified antimony dioxide, modified carbon nitride.
In some preferred embodiments, the modified nanoparticles are modified titanium dioxide.
In some preferred embodiments, the modified titanium dioxide is prepared by the following method: (1) dissolving succinic anhydride in a DMF solution, adding 3-aminopropyltriethoxysilane, and heating and stirring for 3-4 hours at a water bath temperature of 60-70 ℃; (2) then, dropwise adding a DMF (dimethyl formamide) solution containing titanium dioxide into the reaction solution, and continuously stirring for reacting for 3-3.5 hours to obtain pretreated titanium dioxide particles; (3) mixing the pretreated titanium dioxide particles with 2-methylimidazole and zinc nitrate, adding an ethanol solvent, carrying out ultrasonic polymerization under a 500-800W water bath ultrasonic device, washing and drying the obtained product, and thus obtaining the modified titanium dioxide particles.
In some preferred embodiments, the mass ratio of the 2-methylimidazole to the zinc nitrate is 3-5: 12 to 14.
In some preferred embodiments, the mass ratio of 2-methylimidazole to zinc nitrate is 4: 13.
in some preferred embodiments, the time for ultrasonic polymerization is 1 to 2.5 hours.
In some preferred embodiments, the time for ultrasonic polymerization is 1.5 hours.
In some preferred embodiments, the mass ratio of the modified titanium dioxide to the cationic emulsion is 5-7: 11 to 15.
In some preferred embodiments, the mass ratio of the modified titanium dioxide to the cationic emulsion is 6: 14.
according to the invention, the modified titanium dioxide is used as the auxiliary agent of the wall glaze, so that the light resistance, formaldehyde adsorption effect and further pollution prevention performance of the wall glaze are effectively improved. The oxygen atoms in the modified titanium dioxide can be combined with the zinc atoms on the formed framework material through coordination bonds, so that a large number of titanium dioxide nano particles can be caused to be coordinated and loaded on the framework material to form composite particles with a heterojunction structure, the forbidden band distance of the composite particles is reduced, and the light absorption wave band of the titanium dioxide is expanded; meanwhile, the recombination efficiency of electrons and holes is reduced, so that a large number of electrons and holes are respectively gathered in two bands of the composite particles, and the composite particles have extremely strong electron-capturing capacity under illumination and fully decompose organic pollutants; after formaldehyde and other strong reducing substances are adsorbed, the formaldehyde is easily converted into formic acid so as to be further decomposed into carbon dioxide and moisture.
In some preferred embodiments, the mineral salt is at least one of a sodium salt, a calcium salt, a magnesium salt, and a zinc salt.
In some preferred embodiments, the sodium salt is at least one of sodium carbonate, sodium chloride, sodium nitrate, sodium sulfate.
In some preferred embodiments, the calcium salt is at least one of calcium carbonate, calcium chloride, calcium nitrate, calcium sulfate.
In some preferred embodiments, the magnesium salt is at least one of magnesium carbonate, magnesium sulfate, magnesium chloride, magnesium nitrate.
In some preferred embodiments, the zinc salt is at least one of zinc carbonate, zinc chloride, zinc nitrate.
In some preferred embodiments, the mineral salts are calcium nitrate and magnesium chloride; the mass ratio of the calcium nitrate to the magnesium chloride is 1-2: 0.5 to 0.8.
In some preferred embodiments, the mineral salts are calcium nitrate and magnesium chloride; the mass ratio of the calcium nitrate to the magnesium chloride is 1.5: 0.6.
in some preferred embodiments, the adjuvant is at least one of a calcium zinc stabilizer, a silane coupling agent, a defoaming agent, and a bactericide.
In some preferred embodiments, the adjuvant is a chitosan antiseptic.
In some preferred embodiments, the modified nanoparticles have a particle size of 80 to 250 nm.
In some preferred embodiments, the modified nanoparticles have a particle size of 100 to 150 nm.
In some preferred embodiments, the modified nanoparticles have an average particle size of 120 nm.
In the application of the invention, the applicant further discovers that after titanium dioxide is adopted, a large amount of hydroxyl groups on the surface of the titanium dioxide can easily generate hydrogen bond action with water, so that the water washing resistance of the wall glaze is greatly reduced. However, the applicant found that the particle size of the modified titanium dioxide prepared by controlling the mass ratio of 2-methylimidazole to zinc nitrate and the reaction time in the preparation process of the modified titanium dioxide within a certain range can effectively solve the problem. The applicant speculates that: when the mass ratio of the 2-methylimidazole to the zinc nitrate is 4: 13, when the ultrasonic polymerization time is 1.5 hours, the average particle size of the prepared modified titanium dioxide is about 120nm, and the hydrophobic effect of the titanium dioxide can be fully enhanced through a frame structure exposed on the surface of the composite particles while the titanium dioxide and the organic frame are coordinated and combined, so that the hydrogen bond action of the composite particles and water is fully weakened; when the particle size of the prepared modified titanium dioxide is too small, the volume of the frame is small, a large amount of titanium dioxide covered on the surface actually forms a titanium dioxide hydrophilic shell layer, the whole composite particles are in an extremely hydrophilic state and are easy to agglomerate, and the water washing resistance of the wall glaze is greatly influenced; when the particle size of the prepared modified titanium dioxide is too large, the prepared modified titanium dioxide has extremely strong hydrophobic property, but the too large particle volume influences the dispersion effect of the composite particles in a system.
In some preferred embodiments, the particle fineness of the wall glaze is less than or equal to 40 microns.
In some preferred embodiments, the particle fineness of the wall glaze is less than or equal to 30 microns.
In some preferred embodiments, the mass ratio of the cationic emulsion to the mineral salt is 7-7.5: 20 to 24.
In some preferred embodiments, the mass ratio of the cationic emulsion to the mineral salt is 7: 22.5.
the invention provides a preparation method of the light-resistant and water-wash-resistant building interior and exterior wall glaze, which at least comprises the following steps: (1) sequentially adding the required raw materials into a reaction container, and stirring for 80-100 minutes at 1200-1300 rmp; (2) adding an auxiliary agent, reducing the stirring speed to 300-400 rmp, and stirring for 40-60 minutes to obtain the product.
Examples
The technical solution of the present invention is described in detail by the following examples, but the scope of the present invention is not limited to all of the examples. The starting materials of the present invention are all commercially available unless otherwise specified.
Example 1
The embodiment 1 provides a light-resistant and water-wash-resistant building interior and exterior wall glaze in a first aspect, which comprises the following raw materials in percentage by mass: 14% of cationic emulsion, 8% of nano silica sol, 6% of modified titanium dioxide, 45% of mineral salt, 1% of chitosan antibacterial agent and the balance of deionized water.
Cationic emulsion: the cationic hydroxyl silicone oil emulsion and the cationic polyacrylamide emulsion are prepared from the following components in a mass ratio of 3: 11.
the preparation method of the modified titanium dioxide comprises the following steps (by weight portion): (1) dissolving 5 parts of succinic anhydride in 50 parts of DMF solution, adding 5 parts of 3-aminopropyltriethoxysilane, heating and stirring for 3 hours at the water bath temperature of 65 ℃; (2) then, 20 parts of DMF solution containing 1 part of titanium dioxide is dripped into the reaction solution, and the pretreated titanium dioxide particles are obtained after continuous stirring reaction for 3.5 hours; (3) mixing the pretreated titanium dioxide particles with 4 parts of 2-methylimidazole and 13 parts of zinc nitrate, adding 100 parts of ethanol solvent, carrying out ultrasonic polymerization for 1.5 hours in a 600W water bath ultrasonic device, washing and drying the obtained product, and thus obtaining the modified titanium dioxide particles.
The modified titanium dioxide had an average particle diameter of 120 nm.
Mineral salt: calcium nitrate and magnesium chloride in a mass ratio of 1.5: 0.6.
the average particle fineness of the wall glaze is 25 microns.
In this embodiment, the cationic hydroxy silicone oil emulsion is a cationic hydroxy silicone oil emulsion product sold by chemical company ltd.
In this example, the cationic polyacrylamide emulsion is a cationic polyacrylamide emulsion product sold by gold source chemical company ltd, sclause.
In this embodiment, the nano silica sol is a nano silica sol product sold by Hangzhou Zhi titanium purification science and technology Limited.
In this example, the chitosan antibacterial agent is a chitosan antibacterial agent product sold by Shanghai Shen chemical engineering science and technology Limited.
In this example, 3-aminopropyltriethoxysilane CAS:919-30-2 and succinic anhydride CAS: 108-30-5.
The second aspect of the present invention provides a method for preparing the light-resistant and water-resistant building interior and exterior wall glaze, comprising the following steps: the method comprises the following steps: (1) sequentially adding the required raw materials into a reaction container, and stirring for 90 minutes at 1250 rmp; (2) adding chitosan antibacterial agent, reducing stirring speed to 350rmp, and stirring for 50 min.
Example 2
The embodiment of the present invention is different from embodiment 1 in that: the mass ratio of the cationic hydroxyl silicone oil emulsion to the cationic polyacrylamide emulsion is 4: 10.
example 3
The embodiment of the present invention is different from embodiment 1 in that: the mass percent of the modified titanium dioxide is 5 percent.
Example 4
The embodiment of the present invention is different from embodiment 1 in that: the ultrasonic polymerization time of the modified titanium dioxide is 2 hours, the amount of the dimethyl imidazole is 5 parts, and the average fineness of the modified titanium dioxide is 150 nm.
Comparative example 1
The embodiment of this comparative example is the same as example 1 except that: the mass ratio of the cationic hydroxyl silicone oil emulsion to the cationic polyacrylamide emulsion is 1: 20.
comparative example 2
The embodiment of this comparative example is the same as example 1 except that: the mass ratio of the cationic hydroxyl silicone oil emulsion to the cationic polyacrylamide emulsion is 1: 1.
comparative example 3
The embodiment of this comparative example is the same as example 1 except that: the mass percent of the modified titanium dioxide is 2 percent.
Comparative example 4
The embodiment of this comparative example is the same as example 1 except that: the mass percent of the modified titanium dioxide is 10 percent.
Comparative example 5
The embodiment of this comparative example is the same as example 1 except that: the ultrasonic polymerization time of the modified titanium dioxide is 3.5 hours, the amount of the dimethyl imidazole is 8 parts, and the average fineness of the modified titanium dioxide is 400 nm.
Comparative example 6
The embodiment of this comparative example is the same as example 1 except that: the ultrasonic polymerization time of the modified titanium dioxide is 1 hour, the amount of the dimethyl imidazole is 3 parts, and the average fineness of the modified titanium dioxide is 50 nm.
Evaluation of Performance
The wall glazes prepared in all the examples and comparative examples were used as test objects and tested for the following properties:
1. and (3) illumination test: the wall glaze prepared in all the examples and comparative examples is sprayed into a film layer with the thickness of 30 +/-4 microns by adopting a spraying mode well known to a person skilled in the art, the film layer is respectively placed at the ambient temperature of 32 ℃, the illumination experiment is carried out under sufficient illumination for 8 hours every day, the illumination lasts for 300 days, 100 samples are tested in each comparative example, whether the surface of the film layer has obvious yellowing or not and has obvious phenomena of impurity blocks or film layer falling is observed, the condition that less than or equal to 15 samples appear is marked as A grade, more than or equal to 15 samples and less than or equal to 30 samples are marked as B grade, more than 30 samples are marked as C grade, and the recorded result is recorded in Table 1.
2. Hydrophilicity test: the wall glaze prepared in all the examples and comparative examples was sprayed to obtain a 30 ± 4 μm film by a spraying method known to those skilled in the art, the prepared film was tested for hydrophilic contact angle by a sessile drop method water contact angle tester, 5 samples were tested for each example, and the average value of the results is shown in table 1.
3. And (3) testing formaldehyde: at 25 ℃/25m with the formaldehyde concentration of 3.1mg/L2Wall glazes prepared by the examples and the comparison on one wall in a closed room are used for detecting the formaldehyde concentration in the room after coating test samples 7d, 30d and 60d by referring to GB18580-2001 'national mandatory Standard for Formaldehyde detection Release quantity', 5 samples are tested in each example, and the average value of the results is recorded in a table 2.
TABLE 1
| Examples | Light resistance | Water contact Angle (°) |
| Example 1 | A | 109.2 |
| Example 2 | A | 108.7 |
| Example 3 | A | 107.6 |
| Example 4 | A | 107.5 |
| Comparative example 1 | B | 98.4 |
| Comparative example 2 | B | 77.8 |
| Comparative example 3 | C | 85.4 |
| Comparative example 4 | C | 94.2 |
| Comparative example 5 | C | 98.4 |
| Comparative example 6 | C | 66.4 |
TABLE 2
| Examples | Formaldehyde reduction rate (%, 7d) | Formaldehyde reduction rate (%, 30d) | Formaldehyde reduction rate (%, 60d) |
| Example 1 | 31.1 | 36.7 | 62.1 |
| Example 2 | 30.5 | 35.4 | 61.1 |
| Example 3 | 29.2 | 34.6 | 59.5 |
| Example 4 | 30.7 | 35.5 | 61.4 |
| Comparative example 1 | 24.4 | 32.1 | 51.4 |
| Comparative example 2 | 21.4 | 31.4 | 51.2 |
| Comparative example 3 | 25.4 | 34.4 | 53.7 |
| Comparative example 4 | 24.8 | 34.9 | 54.4 |
| Comparative example 5 | 26.1 | 34.5 | 55.5 |
| Comparative example 6 | 25.7 | 33.4 | 54.9 |
Through the embodiments 1 to 4, the comparative examples 1 to 6 and the tables 1 and 2, the wall glaze for the interior and exterior of the building, which is resistant to light and washing with water, and the preparation method thereof, provided by the invention, has good light-resistant, waterproof and cleaning performances, effectively reduces the content of harmful gases such as formaldehyde, is suitable for popularization in the field of wall coatings, and has a wide development prospect. Wherein, the best performance index is obtained under the factors of the best raw material proportion, the best preparation process and the like in the embodiment 1.
Finally, it should be understood that the above-described embodiments are merely preferred embodiments of the present invention, and not intended to limit the present invention, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a building inside and outside wall glaze that resistant light is able to wash, its characterized in that: the raw materials at least comprise the following components in percentage by mass: 10-15% of cationic emulsion, 5-15% of sol colloid, 5-10% of modified nanoparticles, 30-50% of mineral salt, 1-5% of auxiliary agent and the balance of deionized water.
2. The light-resistant and water-resistant architectural interior and exterior wall glaze of claim 1, wherein: the cationic emulsion is at least one of cationic siloxane emulsion, cationic polyacrylamide emulsion, cationic styrene-acrylic emulsion, cationic silicone-acrylic emulsion and cationic pure acrylic emulsion.
3. The light-resistant and water-wash-resistant building interior and exterior wall glaze according to any one of claims 1 to 2, wherein: the sol colloid is nano silicon sol; the mass ratio of the nano silica sol to the cationic emulsion is 3-5: 7 to 7.5.
4. The light-resistant and water-wash-resistant building interior and exterior wall glaze according to any one of claims 1 to 3, wherein: the modified nano particles are at least one of modified titanium dioxide, modified zinc oxide, modified antimony dioxide and modified carbon nitride.
5. The light-resistant and water-wash-resistant building interior and exterior wall glaze according to any one of claims 1 to 4, wherein: the mineral salt is at least one of sodium salt, calcium salt, magnesium salt and zinc salt.
6. The light-resistant and water-wash-resistant building interior and exterior wall glaze according to any one of claims 1 to 5, wherein: the auxiliary agent is at least one of a calcium zinc stabilizer, a silane coupling agent, a defoaming agent and a bactericide.
7. The light-resistant and water-resistant architectural interior and exterior wall glaze of claim 4, wherein: the particle size of the modified nanoparticles is 80-250 nm.
8. The light-resistant and water-resistant architectural interior and exterior wall glaze of claim 1, wherein: the particle fineness of the wall glaze is less than or equal to 40 micrometers.
9. The light-resistant and water-resistant architectural interior and exterior wall glaze of claim 1, wherein: the mass ratio of the cationic emulsion to the mineral salt is 7-7.5: 20 to 24.
10. The method for preparing the building interior and exterior wall glaze with light resistance and water washing resistance according to any one of claims 1 to 9, which is characterized by comprising the following steps: the steps at least comprise the following steps: (1) sequentially adding the required raw materials into a reaction container, and stirring for 80-100 minutes at 1200-1300 rmp; (2) adding an auxiliary agent, reducing the stirring speed to 300-400 rmp, and stirring for 40-60 minutes to obtain the product.
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| CN114085049A (en) * | 2021-07-06 | 2022-02-25 | 罗翠莲 | Environment-friendly mineral wall glaze for interior and exterior of buildings and preparation method thereof |
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