CN112745145B - Full-polished glaze, polished glazed brick with full-polished glaze and preparation method of polished brick - Google Patents

Full-polished glaze, polished glazed brick with full-polished glaze and preparation method of polished brick Download PDF

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CN112745145B
CN112745145B CN202110012259.8A CN202110012259A CN112745145B CN 112745145 B CN112745145 B CN 112745145B CN 202110012259 A CN202110012259 A CN 202110012259A CN 112745145 B CN112745145 B CN 112745145B
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glaze
polished
mesh
full
mass
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CN112745145A (en
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刘一军
杨元东
杨倩
张克林
郑贵友
王贤超
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Monalisa Group Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81Coating or impregnation
    • C04B41/89Coating or impregnation for obtaining at least two superposed coatings having different compositions
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C8/00Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C03C8/14Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
    • C03C8/16Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions with vehicle or suspending agents, e.g. slip
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C8/00Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C03C8/14Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
    • C03C8/20Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions containing titanium compounds; containing zirconium compounds
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation

Abstract

The invention relates to a full-polished glaze, a polished glazed brick with the full-polished glaze and a preparation method thereof. The fully-polished glaze is applied to a brick body, bubbles with the diameter of below 20 mu m uniformly exist in a glaze layer after the brick body is fired at the firing temperature of 1200-1220 ℃ for 60-80 min, and the fully-polished glaze comprises the following raw materials: by mass, 22-30% of tea-seed feldspar, 6-9% of zinc oxide, 12-14% of barium carbonate, 7-9% of calcined talc, 8-10% of kaolin, 6-12% of 325-mesh corundum, 23-27% of glass frit and 1-3% of zirconium silicate. The fully polished glaze has high transparency, 6-grade hardness and 6000-turn (4-grade) wear resistance after being fired.

Description

Full-polished glaze, polished glazed brick with full-polished glaze and preparation method of polished brick
The application is a divisional application of an invention patent application with the application number of 202010457250.3, the application date of 2020, 5 and 26, and the invention name of 'a glazed brick with an antibacterial function, a preparation method thereof and full glazed'.
Technical Field
The invention relates to a ceramic tile with an antibacterial function, a preparation method thereof and full-glazed glaze, and belongs to the technical field of ceramic tile production and manufacturing.
Background
As a building decoration material, the ceramic tile is not only applied to decoration of home places, but also widely applied to public places such as malls, restaurants, hospitals, stations, swimming pools, schools and the like, bacteria are easy to breed in humid environments, food residues, droplets and the like, and if the ceramic tile cannot be cleaned in time, a large amount of bacterial pollution can be caused, and the health of people is harmed. At present, some ceramic manufacturing enterprises also put forward some ceramic tiles with antibacterial function, and the main technologies include: adding negative ion powder for sterilization, wherein the product is mainly excited by radioactive elements and has certain radioactivity; the sterilization by the photocatalysis mechanism is mainly characterized in that the nano titanium dioxide is coated on the surface of a product, the activation of ultraviolet rays is needed, the low-temperature treatment at 300 ℃ is needed for keeping the activity, the durability needs to be improved, and the ultraviolet rays are harmful to human bodies; the antibacterial agent such as silver and the like is added into the glaze and directly fired, and the silver is oxidized in a high-temperature environment, so that the antibacterial capability is reduced.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a glazed tile having excellent antibacterial function and being non-toxic and harmless to human body and environment, and a method for preparing the same.
In a first aspect, the application provides a throw glazed brick with antibacterial function, the glazed layer of throwing glazed brick has the pit, it has super bright wax and nano silver granule to fill in the pit.
According to the invention, the nano silver particles are mixed into the ultra-clean wax to be filled in the glaze surface, so that the air holes and micro cracks on the polished surface are repaired, a continuous, compact and smooth surface is formed, the roughness of the surface of the brick is reduced, various pollutants are effectively prevented from being left on the surface of the brick and entering the interior of the brick body through the air holes and the micro cracks, and meanwhile, the product is endowed with good antifouling performance. The antibacterial effect is achieved by destroying or generating dysfunction of common components of microorganisms caused by silver ion contact. When a trace amount of silver ions reach the microbial cell membrane, the silver ions are firmly adsorbed by virtue of coulomb attraction because the silver ions carry negative charges, penetrate through the cell wall to enter the cell and react with SH groups to solidify proteins, destroy the activity of cell synthetases, and lose division and proliferation capacity to die. The antibacterial rate of escherichia coli of the product reaches 99%, the antibacterial rate of staphylococcus aureus reaches 99%, and the antibacterial performance is excellent.
Preferably, the particle size of the nano silver particles is 10-30 nanometers.
Preferably, the glaze layer contains a glaze layer prepared by using full-polishing glaze, and the raw material formula of the full-polishing glaze comprises: by mass, 22-30% of tea-seed feldspar, 6-9% of zinc oxide, 12-14% of barium carbonate, 7-9% of calcined talc, 8-10% of kaolin, 6-12% of 325-mesh corundum, 23-27% of glass frit and 1-3% of zirconium silicate.
Preferably, the chemical composition of the full-polished glaze comprises: by mass, SiO 2 :45~48%、Al 2 O 3 :14~16%、Fe 2 O 3 :0.1~0.3%、CaO:5~6.5%、MgO:2.5~4%、K 2 O:3.0~4.0%、Na 2 O:0.8~1.5%、BaO:9~11%、ZnO:8~10%、ZrO 2 : 0.5-2%, loss on ignition: 3.5 to 4.5 percent.
In a second aspect, the present application provides a method for preparing any of the above glazed tiles, comprising: and coating ultra-clean wax water containing nano silver on the polished glaze surface.
According to the invention, the technology of adding nano silver into ultra-clean bright wax water is adopted, so that the antibacterial function of the fully-glazed ceramic tile is realized, and the ceramic tile has the advantages of high antibacterial performance and high cost performance. The process of coating the ultra-clean wax water containing the nano-silver by post-treatment is adopted, so that the silver is prevented from being oxidized in a high-temperature environment. And the nano silver simple substance particles have the advantages of simple processing, stable quality, uniform mixing with ultra-clean wax water and difficult agglomeration.
Preferably, bubbles with the diameter of less than 20 microns are uniformly arranged in the glaze layer, and hemispherical small pits are formed after polishing.
Preferably, the ultra-clean and bright wax water containing nano-silver is prepared by the following method:
preparing silver simple substances into dispersion liquid with the particle size of 10-30 nanometers by utilizing a super-dispersion technology, wherein the mass of the silver simple substances accounts for 0.05-1% of the total dispersion liquid;
and fully and uniformly mixing the nano-silver dispersion liquid and the ultra-clean wax water, wherein the nano-silver dispersion liquid accounts for 1-5% of the total mixed liquid.
Preferably, the coating amount of the ultra-clean and bright wax water containing nano silver is 5-30 g/m 2
In a third aspect, the application provides a fully polished glaze, and the raw material formula of the fully polished glaze comprises: by mass, 22-30% of tea-seed feldspar, 6-9% of zinc oxide, 12-14% of barium carbonate, 7-9% of calcined talc, 8-10% of kaolin, 6-12% of 325-mesh corundum, 23-27% of glass frit and 1-3% of zirconium silicate.
The fully polished glaze has high transparency, 6-grade hardness, 4-grade wear resistance, and even glaze layer with certain amount of bubbles of diameter below 20 microns, and may form great amount of semi-spherical pits after polishing.
Preferably, the chemical composition of the full-polished glaze comprises: by mass, SiO 2 :45~48%、Al 2 O 3 :14~16%、Fe 2 O 3 :0.1~0.3%、CaO:5~6.5%、MgO:2.5~4%、K 2 O:3.0~4.0%、Na 2 O:0.8~1.5%、BaO:9~11%、ZnO:8~10%、ZrO 2 : 0.5-2%, loss on ignition: 3.5 to 4.5 percent.
According to the invention, the glazed brick with excellent antibacterial function and no toxicity or harm to human bodies and environment can be provided.
Drawings
Figure 1 shows the tile effect before waxing.
Fig. 2 shows the effect of the brick surface after the antibacterial wax water is applied.
Detailed Description
The present invention is further illustrated by the following examples, which are to be understood as merely illustrative and not restrictive. The following percentages are by mass unless otherwise specified.
The formula of the fully polished glaze of one embodiment of the invention comprises the following components: 22-30% of tea-crystal feldspar, 6-9% of zinc oxide, 12-14% of barium carbonate, 7-9% of calcined talc, 8-10% of kaolin, 6-12% of 325-mesh corundum, 23-27% of glass frit and 1-3% of zirconium silicate.
The formula of the full-polished glaze contains 22-30% of the tea crystal feldspar, the tea crystal feldspar is potassium-soda feldspar, the potassium oxide content is 8.17%, the sodium oxide content is 2.68%, the impurity content is low, the whiteness is high, the range is controlled to be 22-30%, the melting temperature range of the glaze is wide, and the high-temperature viscosity is moderate, so that bubbles can be conveniently removed.
The formula of the full-polished glaze contains 6-12% of 325-mesh corundum, so that the wear resistance and hardness of the glaze can be increased while the transparent feeling of the glaze is not influenced.
The glass frit is frit glaze, and the chemical composition of the frit glaze can be as follows: SiO 2 2 :66%~68%,Al 2 O 3 :4.5%~5.5%,CaO:20~21%,MgO:2%~2.5%,K 2 O:2.5%~3.0%,ZnO:2.0~2.5%。Na 2 O: 0.6-1.0%, the frit is a barium-free frit.
The formula of the full-polished glaze contains 1-3% of zirconium silicate, so that the wear resistance of the glaze can be improved.
The chemical composition of the fully polished glaze of one embodiment of the invention comprises: by mass, SiO 2 :45~48%、Al 2 O 3 :14~16%、Fe 2 O 3 :0.1~0.3%、CaO:5~6.5%、MgO:2.5~4%、K 2 O:3.0~4.0%、Na 2 O:0.8~1.5%、BaO:9~11%、ZnO:8~10%、ZrO 2 : 0.5-2%, loss on ignition: 3.5 to 4.5 percent.
In the chemical composition, Al 2 O 3 The content of the crystal is higher than that of the conventional glaze polishing, the hardness and the wear resistance of the glaze can be improved, ZnO can promote the coloring assisting performance of the glaze, CaO, MgO and BaO are mainly used as solvent raw materials, and after sintering, crystals such as celsian and the like can be separated out from a glaze layer, so that the wear resistance and the hardness of the glaze layer are improved.
In one embodiment of the invention, the full-polished glaze is prepared into glaze slip and applied on the surface of the brick. The tile body to be applied with the full-glazed finish is not particularly limited, and may have, for example, a green body, a ground coat layer, a pattern decorative layer, or the like. In one embodiment, the glaze slip is prepared by mixing and ball-milling 70-72% of full-polished glaze (dry material), 0.1-0.25% of sodium tripolyphosphate, 0.1-0.25% of sodium methylcellulose and 28-30% of water by mass. The fineness of the sieve is less than or equal to 0.6 percent of the sieve residue with 325 meshes. The glaze slip can be applied on the surface of the brick by adopting a glaze spraying mode. The specific gravity of the glazing is 1.5-1.6, and the glazing amount is 500-550 g/m 2
And (4) glazing and then sintering. The sintering temperature can be 1200-1220 ℃, and the sintering period can be 60-80 min.
And then polished. In one embodiment, the polishing is performed using resilient abrading blocks arranged in 240 mesh 4, 300 mesh 8, 400 mesh 8, 600 mesh 4, 800 mesh 4, 1000 mesh 4, 1500 mesh 4, 2000 mesh 4, 3000 mesh 8 groups. By adopting the polishing method, the glaze surface has high flatness, and the glossiness reaches more than 90 degrees.
After the fully polished glaze is fired, the transparency is high, the hardness reaches 6 grades, the wear-resistant grade reaches 6000 revolutions (4 grades), and the color development effect of the ink is good. The glaze layer is uniformly provided with a certain number of bubbles having a diameter of 20 μm or less. The main reasons are that the glaze formula has low carbonate content and generates less gas, and the glaze layer has high viscosity at high temperature, so that bubbles are not easy to gather into large bubbles and are not easy to discharge out of the glaze layer. Because the diameter of the bubbles is small, the transparent feeling of the glaze layer is not influenced, and a large number of hemispherical small pits can be formed after polishing.
In one embodiment of the invention, the ultra-clean and bright wax water containing the nano-silver component is coated in the small hemispherical pits, so that the antibacterial function of the fully-glazed ceramic tile is realized, and the advantages of high antibacterial performance and high cost performance are achieved.
In one embodiment, the silver is prepared into a stable dispersion with a particle size of about 10-30 nm. The formed nano silver with the particle size range can be effectively dispersed in ultra-clean and bright wax water, and is not easy to agglomerate, and the antibacterial rate can reach 99%. The preparation method can be ultra-dispersion technology. The silver simple substance accounts for 0.05-1% of the total dispersion liquid by mass, has good dispersibility within the mass percentage range, and is not easy to aggregate and precipitate. And then, fully and uniformly mixing the nano-silver dispersion liquid and the ultra-clean bright wax water to obtain the ultra-clean bright wax water containing the nano-silver component, wherein the nano-silver dispersion liquid can account for 1-5% of the total mixed liquid, can have good dispersibility within the mass percentage range, meets the antifouling property of the product, and has good antibacterial property. The ultra-clean bright wax liquid is not particularly limited, and can be used as the ultra-clean bright wax liquid commonly used in the art.
The ultra-clean and bright wax liquid containing the nano-silver component can be uniformly coated by an ultra-clean and bright polisher.The coating amount of the ultra-clean and bright wax water containing the nano-silver component can be 5-30 g/m 2 The product has good antifouling performance by adopting the coating amount, and meanwhile, the antibacterial rate reaches 99 percent. The temperature of the polished green brick can be controlled to be 70-100 ℃, a good antifouling effect can be achieved within the temperature range, and the problems of burning wax and the like are not easy to cause.
After waxing, the pores and micro cracks on the polished surface are repaired to form a continuous, compact and smooth surface, the roughness of the surface of the brick is reduced, various dirt is effectively prevented from being left on the surface of the brick and entering the interior of the brick body through the pores and the micro cracks, and meanwhile, the product is endowed with good antifouling performance. The antibacterial effect is achieved by destroying or generating dysfunction of common components of microorganisms caused by silver ion contact. When a trace amount of silver ions reach the microbial cell membrane, the silver ions are firmly adsorbed by virtue of coulomb attraction because the silver ions carry negative charges, penetrate through the cell wall to enter the cell and react with SH groups to solidify proteins, destroy the activity of cell synthetases, and lose division and proliferation capacity to die. The antibacterial rate of the product escherichia coli reaches more than 99 percent, even more than 99.41 percent, the antibacterial rate of staphylococcus aureus reaches more than 96.51 percent, even more than 99.18 percent, and the antibacterial property is excellent.
The present invention will be described in detail by way of examples. It is also to be understood that the following examples are illustrative of the present invention and are not to be construed as limiting the scope of the invention, and that certain insubstantial modifications and adaptations of the invention by those skilled in the art may be made in light of the above teachings. The specific process parameters and the like of the following examples are also only one example of suitable ranges, i.e., those skilled in the art can select the appropriate ranges through the description herein, and are not limited to the specific values exemplified below.
Example 1
Preparing full-polishing glaze according to a formula, wherein the full-polishing glaze formula comprises the following components: tea crystal feldspar: 28 percent of zinc oxide, 8 percent of barium carbonate, 8 percent of calcined talc, 9 percent of kaolin, 8 percent of 325-mesh corundum, 24 percent of glass frit and 2 percent of zirconium silicate. Wherein the theacrite feldspar and the glass frit are purchased from Tri-spar pottery in Foshan CityEnamels ltd. The chemical composition of the full-polishing glaze is as follows: SiO 2 2 :47.86%、Al 2 O 3 :15.80%、Fe 2 O 3 :0.22%、CaO:5.68%、MgO:3.18%、K 2 O:3.24%、Na 2 O:0.97%、BaO:10.10%、ZnO:8.44%、ZrO 2 : 0.52%, loss on ignition: 3.99 percent.
Ball milling proportioning: 70% of full-glazed dry material, 0.15% of sodium tripolyphosphate, 0.1% of sodium methylcellulose and 29.75% of water. The residue of the 325-mesh sieve is less than or equal to 0.6 percent.
The full-polishing adopts a glaze pouring mode, the glazing proportion is 1.78, and the glazing amount is 600g/m 2 . After glaze is sprayed, the mixture is placed into a kiln to be sintered, the sintering temperature of the kiln is 1220 ℃, and the sintering period is 65 min.
And (3) taking the materials out of the kiln, polishing by adopting elastic grinding blocks, wherein the grinding blocks are arranged into 4 groups of 240 meshes, 8 groups of 300 meshes, 8 groups of 400 meshes, 4 groups of 600 meshes, 4 groups of 800 meshes, 4 groups of 1000 meshes, 4 groups of 1500 meshes, 4 groups of 2000 meshes and 8 groups of 3000 meshes.
Preparing silver elementary substance into stable dispersion liquid with the particle size of about 10-30 nanometers by using a nanometer grinding machine, wherein the mass of the silver elementary substance accounts for 1% of the total mass; and fully and uniformly mixing the nano-silver dispersion liquid and the ultra-clean wax water, wherein the nano-silver dispersion liquid accounts for 3.5 percent of the total weight.
After the full-glazed ceramic tile is polished, 20 super-clean and bright grinders are adopted to uniformly coat super-clean and bright wax water containing nano-silver components, and the coating amount of the wax water is 20g/m 2 And the temperature of the polished green brick is controlled at 80 ℃.
Figure 1 shows the tile effect before waxing. Fig. 2 shows the effect of the brick surface after the antibacterial wax water is applied. It can be seen that the small hemispherical pits with the diameter of less than 20 μm exist in the brick surface, and the process of post-treatment coating of ultra-clean wax water containing nano-silver is adopted, so that the pores and microcracks on the polished surface are repaired, a continuous, compact and smooth surface is formed, the roughness of the brick surface is reduced, various dirt is effectively prevented from remaining on the brick surface and entering the brick body through the pores and microcracks, and meanwhile, the product is endowed with good antifouling performance.
The hardness of the brick surface is 6 through Mohs hardness test, and the wear resistance grade is 6000 revolutions (4 grades) through wear resistance test.
The antibacterial performance of the product is tested by the method of antibacterial ceramic product antibacterial performance detection, and the result shows that the antibacterial rate of escherichia coli of the product reaches 99.41%, the antibacterial rate of staphylococcus aureus reaches 99.15%, and the antibacterial performance is excellent.
Example 2
The difference from the embodiment 1 is that the full-polishing formula comprises the following components: tea crystal feldspar: 27%, zinc oxide 8%, barium carbonate 13%, calcined talc 8%, kaolin 9%, 325-mesh corundum 9%, glass frit 24%, zirconium silicate 2%, and the full-polished glaze comprises the following chemical components: SiO 2 2 :47.96%、Al 2 O 3 :15.80%、Fe 2 O 3 :0.27%、CaO:5.68%、MgO:3.18%、K 2 O:3.21%、Na 2 O:0.92%、BaO:10.10%、ZnO:8.44%、ZrO 2 : 0.52%, loss on ignition: 3.92 percent.
The test shows that the hardness of the brick surface is 6, and the wear resistance grade is 6000 revolutions (4 grades). The antibacterial rate of Escherichia coli in the product is 99.32%, and the antibacterial rate of Staphylococcus aureus reaches 99.18%.
Example 3
The difference from the embodiment 1 is that the silver simple substance is prepared into stable dispersion liquid with the grain diameter of about 10-30 nanometers by utilizing the ultra-dispersion technology, and the mass of the silver simple substance accounts for 0.9 percent of the total mass; and fully and uniformly mixing the nano-silver dispersion liquid and the ultra-clean wax water, wherein the nano-silver dispersion liquid accounts for 4.2 percent of the total weight.
Tests show that the antibacterial rate of escherichia coli of the product is 99.25%, and the antibacterial rate of staphylococcus aureus reaches 96.51%.
Comparative example 1
The difference from the embodiment 1 is that the full-polishing formula comprises the following components: albite: 24%, potassium feldspar 10%, zinc oxide 4%, barium carbonate 13%, calcined talc 11%, kaolin 9%, 325-mesh corundum 6%, glass frit 23%, and the chemical composition of full-polished glaze is as follows: SiO 2 2 :47.61%、Al 2 O 3 :15.40%、Fe 2 O 3 :0.24%、CaO:5.62%、MgO:5.88%、K 2 O:3.24%、Na 2 O: 3.97%, BaO: 10.05%, ZnO: 3.94%, loss on ignition: 4.05 percent.
Tests show that the Mohs hardness of the product is 5, the wear-resistant grade is 2100 rpm (grade 4), the antibacterial rate of escherichia coli of the product is 93.14%, and the antibacterial rate of staphylococcus aureus reaches 94.09%.

Claims (9)

1. The fully-polished glaze is characterized in that the fully-polished glaze is applied to a brick body, bubbles with the diameter of below 20 mu m uniformly exist in a glaze layer after being sintered at the sintering temperature of 1200-1220 ℃ for 60-80 min, and hemispherical small pits are formed after polishing; the raw material formula of the full-polished glaze comprises: by mass, 22-30% of tea-seed feldspar, 6-9% of zinc oxide, 12-14% of barium carbonate, 7-9% of calcined talc, 8-10% of kaolin, 6-12% of 325-mesh corundum, 23-27% of glass frit and 1-3% of zirconium silicate; the glass frit is frit glaze, and the chemical composition of the frit glaze is as follows: by mass, SiO 2 :66%~68%,Al 2 O 3 :4.5%~5.5%,CaO:20~21%,MgO:2%~2.5%,K 2 O:2.5%~3.0%,ZnO:2.0~2.5%,Na 2 O: 0.6-1.0%; the chemical composition of the full-polished glaze comprises: by mass, SiO 2 :45~48%、Al 2 O 3 :14~16%、Fe 2 O 3 :0.1~0.3%、CaO:5~6.5%、MgO:2.5~4%、K 2 O:3.0~4.0%、Na 2 O:0.8~1.5%、BaO:9~11%、ZnO:8~10%、ZrO 2 : 0.5-2%, loss on ignition: 3.5 to 4.5 percent.
2. The fully polished glaze according to claim 1, wherein the fully polished glaze after firing has a hardness of 6 on the brick surface as measured by Mohs hardness and a wear resistance rating of 6000 revolutions as measured by wear resistance.
3. The preparation method of the full-polished glaze according to claim 1 or 2, characterized by mixing and ball-milling 70-72% by mass of a dry material of the full-polished glaze prepared from the raw material formula, 0.1-0.25% by mass of sodium tripolyphosphate, 0.1-0.25% by mass of sodium methylcellulose and 28-30% by mass of water to prepare glaze slurry; the sum of the mass percentages of the dry materials, the sodium tripolyphosphate, the sodium methylcellulose and the water is 100 percent.
4. The preparation method of claim 3, wherein the fineness of the glaze slip is 325 mesh with less than or equal to 0.6 percent.
5. The preparation method according to claim 3, wherein the glaze slip is applied to the brick body by means of glaze pouring, the glazing specific gravity is 1.5-1.6, and the glazing amount is 500-550 g/m 2
6. The preparation method according to claim 3, characterized in that the fully polished glaze after sintering is polished by using elastic grinding blocks, and the grinding blocks are arranged into 240-mesh 4 group, 300-mesh 8 group, 400-mesh 8 group, 600-mesh 4 group, 800-mesh 4 group, 1000-mesh 4 group, 1500-mesh 4 group, 2000-mesh 4 group and 3000-mesh 8 group.
7. The fully-glazed tile according to claim 1 or 2, wherein the pits formed in the glazed layer of the glazed tile after polishing are filled with ultra-clean wax and nano-silver particles.
8. The glazed tile according to claim 7, wherein the nano silver particles have a particle size of 10 to 30 nm.
9. The method for preparing the glazed tile of claim 7, comprising: coating ultra-clean and bright wax water containing nano silver on the polished glaze surface, wherein the ultra-clean and bright wax water is prepared by the following method: preparing silver simple substances into dispersion liquid with the particle size of 10-30 nanometers by utilizing a super-dispersion technology, wherein the mass of the silver simple substances accounts for 0.05-1% of the total dispersion liquid; and fully and uniformly mixing the nano-silver dispersion liquid and the ultra-clean wax water, wherein the nano-silver dispersion liquid accounts for 1-5% of the total mixed liquid.
CN202110012259.8A 2020-05-26 2020-05-26 Full-polished glaze, polished glazed brick with full-polished glaze and preparation method of polished brick Active CN112745145B (en)

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CN202110012259.8A CN112745145B (en) 2020-05-26 2020-05-26 Full-polished glaze, polished glazed brick with full-polished glaze and preparation method of polished brick
CN202010457250.3A CN111559925B (en) 2020-05-26 2020-05-26 Polished glazed brick with antibacterial function, preparation method thereof and full-polished glaze

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