CN110981198A - Photochromic ceramic tile and preparation method thereof - Google Patents
Photochromic ceramic tile and preparation method thereof Download PDFInfo
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- CN110981198A CN110981198A CN201911149532.0A CN201911149532A CN110981198A CN 110981198 A CN110981198 A CN 110981198A CN 201911149532 A CN201911149532 A CN 201911149532A CN 110981198 A CN110981198 A CN 110981198A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/14—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G41/00—Compounds of tungsten
- C01G41/02—Oxides; Hydroxides
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple 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
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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Abstract
The invention discloses a photochromic ceramic tile, which comprises: the blank layer, the overglaze layer, the printing layer and the photochromic transparent glaze layer; the photochromic transparent glaze layer comprises the following components in parts by weight: 55-58 parts of SiO213 to 17 parts of Al2O32-4 parts of WO30.03-0.05 part of Fe2O30.5 to 1 part of TiO23-5 parts of CaO, 1-2 parts of CdS, 4-6 parts of MgO and 4-6 parts of K2O, 3-4 parts of Na2O, 2-3 parts of ZnO, 4-10 parts of AgX, 2-4 parts of SrO and 1-2 parts of BaO; wherein AgX is AgCl or AgNO3One or two of them; by mixing the photochromic materials AgX and WO in the transparent glaze3The photosensitizer and the CdS sensitizer are fired at high temperature to prepare ceramic tiles capable of changing color along with light, and the ceramic tiles are transparent along with the enhancement of illuminationThe color gradually changes into grey blue, and gradually changes back to transparent after the illumination is stopped, so that the color is rich in aesthetic feeling, the color change accuracy can reach +/-1 ℃, and simultaneously more than 80% of ultraviolet radiation can be blocked; the preparation process is simple and is beneficial to industrial production and popularization.
Description
Technical Field
The invention relates to the technical field of ceramic tiles and preparation methods thereof, in particular to a photochromic ceramic tile and a preparation method thereof.
Background
With the rapid development of the ink-jet printing technology, the non-contact ink-jet printing technology is incomparable with the traditional screen printing or roller printing in the aspects of richness, definition and the like of patterns, has the advantages of saving pigment, improving efficiency and the like, is widely applied to ceramic production at present, and promotes glazed tiles to take the third revolution.
Glazed tiles gradually replace polished tiles by virtue of fine textures, bright colors and patterns of the glazed tiles, and become home decoration materials which are most popular with consumers. At present, glazed tiles in the market are in various types, such as sinking effect, crack effect and the like, and with the development of the well-spraying type of the glazed tiles, a large number of manufacturers for producing ceramic glazed tiles are accumulated in the industry, but some problems are brought, such as products presented to consumers in the market are uniform. In the era of high product homogeneity, every enterprise is seeking differentiation, the improvement of ceramic tile style by purely depending on layout design at present is not enough to resist increasing competition, and the ever-increasing demands of consumers can be met only by developing personalized ceramic tile products.
In addition, the current preparation method of the photochromic ceramic tile is complex, high in manufacturing cost, not suitable for large-scale batch production, and poor in ultraviolet ray blocking effect.
It is seen that improvements and enhancements to the prior art are needed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a photochromic ceramic tile and a preparation method thereof, and aims to solve the technical problems of complex preparation process, unobvious photochromic effect, low accuracy of color change temperature and poor ultraviolet blocking effect of the conventional photochromic ceramic tile.
In order to achieve the purpose, the invention adopts the following technical scheme:
light-induced deformationA colored ceramic tile comprising: the blank layer, the overglaze layer, the printing layer and the photochromic transparent glaze layer; the photochromic transparent glaze layer comprises the following components in percentage by mass: 55-58 parts of SiO213 to 17 parts of Al2O32-4 parts of WO30.03-0.05 part of Fe2O30.5 to 1 part of TiO23-5 parts of CaO, 1-2 parts of CdS, 4-6 parts of MgO and 4-6 parts of K2O, 3-4 parts of Na2O, 2-3 parts of ZnO, 4-10 parts of AgX, 2-4 parts of SrO and 1-2 parts of BaO; wherein AgX is AgCl or AgNO3One or two of them.
In the photochromic ceramic tile, the grain size of AgX is 50-100 nm.
In the photochromic ceramic tile, the WO3The preparation method is artificial hydrothermal induced synthesis and comprises the following steps:
step A001, weighing sodium tungstate, weighing distilled water, putting the distilled water into a beaker, putting the beaker on a stirrer, and dropwise adding tartaric acid while stirring until the sodium tungstate is completely dissolved;
step A002, weighing HNO3Putting into a beaker, and stirring uniformly;
step A003, transferring the mixture obtained in the step A002 to a polytetrafluoroethylene lining, and carrying out hydrothermal reaction; washing the reaction product with distilled water, and drying in an oven to obtain WO3And (3) powder.
In the photochromic ceramic tile, the addition amount of sodium tungstate is 5-8 g, and HNO is added3The addition amount of (A) is 5-15 mL, and HNO3The concentration of (A) is 25-35%.
In the photochromic ceramic tile, the WO3The particle size of (A) is 200 to 400 nm.
The preparation method of the photochromic ceramic tile comprises the following steps:
b001, paving the ceramic powder at the bottom of a press, and performing dry pressing to obtain a ceramic tile blank;
b002, spreading a cover glaze on the blank body obtained in the step B001;
b003, printing a design pattern on the ceramic tile overglaze of the B002;
and B004, distributing and applying the photochromic transparent glaze on the ceramic tile in the step B003, and firing and forming to obtain the photochromic ceramic tile.
In the photochromic ceramic tile, the pressure of the press in the step B001 is 3800-5000T.
In the photochromic ceramic tile, the manner of applying the overglaze in the step B002 comprises one of glaze pouring and glaze spraying; the thickness of the overglaze layer is 0.2-0.5 mm.
In the photochromic ceramic tile, the printing mode in the step B003 includes one of ink-jet printing and roller printing.
In the photochromic ceramic tile, the thickness of the photochromic transparent glaze layer in the step B004 is 0.5-0.8 mm, and the firing and forming temperature is 1200-1250 ℃.
Has the advantages that:
the invention provides a photochromic ceramic tile and a preparation method thereof, wherein photochromic materials AgX and WO are mixed in transparent glaze3The ceramic tile capable of changing color along with light is prepared by firing the photosensitizer and the CdS sensitizer at high temperature, the transparency of the ceramic tile is gradually changed into grey blue along with the enhancement of the illumination, the ceramic tile gradually changes back to be transparent after the illumination is stopped, the ceramic tile is attractive, the color change accuracy can reach +/-1 ℃, and simultaneously, more than 80% of ultraviolet radiation can be blocked.
Drawings
FIG. 1 is a schematic structural diagram of a photochromic ceramic tile according to the present invention.
FIG. 2 is a graph of the UV-VIS absorption spectrum of the photochromic transparent glaze layer of example 1.
Detailed Description
The invention provides a photochromic ceramic tile and a preparation method thereof, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail below by referring to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the present invention provides a photochromic ceramic tile, comprising: blank layer 1, overglaze layer 2, stamp layer3 and a photochromic transparent glaze layer 4; the photochromic transparent glaze layer 4 comprises the following components in percentage by mass: 55-58 parts of SiO213 to 17 parts of Al2O32-4 parts of WO30.03-0.05 part of Fe2O30.5 to 1 part of TiO23-5 parts of CaO, 1-2 parts of CdS, 4-6 parts of MgO and 4-6 parts of K2O, 3-4 parts of Na2O, 2-3 parts of ZnO, 4-10 parts of AgX, 2-4 parts of SrO and 1-2 parts of BaO; wherein AgX is AgCl or AgNO3One or two of them.
The colorless AgX decomposes into silver atoms and aggregates into Ag+Colloidal particles of Ag+The colloidal particles have a strong light-absorbing ability to darken the transparent glaze, and when the ultraviolet rays of sunlight are removed, the silver atoms and the halogen atoms are recombined into colorless silver halide crystals to discolor the transparent glaze, and, at the same time, WO3As a transition metal oxide, the electron shell structure of a metal ion is unstable, and a valence state reversibly changes under a certain condition to form a state in which ions of mixed valence states coexist. Under the action of light with certain wavelength and intensity, the ion valence state and concentration change, and the color also changes. By mixing the photochromic materials AgX and WO in the transparent glaze3Preparing ceramic tile, AgX and WO, with photochromic function by high-temp. firing of photosensitizer and CdS sensitizer3The composite of the transparent glaze can enhance the photochromic effect of the transparent glaze, can lead the transparent glaze to change color in the visible light range, gradually changes from transparent to grey blue along with the enhancement of illumination, and gradually changes back to transparent after the illumination is stopped.
The components of the transparent glaze act synergistically, so that the surface of the fired transparent glaze layer is smooth, the components are uniformly distributed, the photochromic effect on the surface of the ceramic tile is obvious, the color-changing temperature accuracy is high, and the invasion of ultraviolet rays can be effectively blocked.
Further, the particle size of the AgX is 50-100 nm; the particle size of the particles influences the surface energy and activity of the particles, and AgX in the particle size range is beneficial to more sufficient physical and chemical reactions between the particles and other components in the transparent glaze, so that the problems of poor local photochromic effect, inaccurate color-changing temperature and influence on the quality of products caused by insufficient reaction and uneven distribution are avoided.
Further, said WO3The preparation method is artificial hydrothermal induced synthesis and comprises the following steps: weighing 5-8 g of sodium tungstate, weighing 10-15 mL of distilled water, putting the distilled water into a beaker, putting the beaker on a stirrer, and dropwise adding tartaric acid while stirring until the sodium tungstate is completely dissolved; weighing 5-15 mL of HNO with concentration of 25-35%3Putting into a beaker, and stirring uniformly; moving the mixture to a polytetrafluoroethylene lining, and carrying out hydrothermal reaction for 4 hours at 80-100 ℃; washing the reaction product with distilled water, and drying in a 60 ℃ oven to obtain WO with the particle size of 200-400 nm3And (3) powder. The preparation method is simple to operate, complex equipment is not needed, the prepared tungsten trioxide is stable in performance, uniform in appearance and good in crystallinity, and is favorable for compounding with AgX, the photochromic effect can be improved, and the photochromic effect is more obvious; WO in the particle size range3The fluidity and the ductility are moderate, the accumulation is avoided, and the uniform dispersion in a transparent glaze system is facilitated.
Further, the preparation method of the photochromic ceramic tile comprises the following steps: paving ceramic powder at the bottom of a press at 3800-5000T, and performing dry pressing to obtain a ceramic tile blank 1; spreading overglaze on the blank by adopting a glaze spraying or glaze spraying mode to obtain an overglaze layer 2, wherein the thickness of the overglaze layer is 0.2-0.5 mm; printing the designed pattern on the overglaze layer by adopting an ink-jet printing or roller printing mode to obtain a printing layer 3; distributing photochromic transparent glaze on the printing layer by adopting a glaze pouring mode to obtain a photochromic transparent glaze layer 4, wherein the thickness of the transparent glaze layer 4 is 0.5-0.8 mm; and finally, firing and molding the photochromic ceramic tile at the temperature of 1200-1250 ℃.
In the process of pressing powder, the shape and the particle size of the powder are closely related to the density and the uniformity of the blank, so that the water absorption of the blank, the degree of fit with the overglaze and other properties are influenced, the pressure of the press is moderate, the subsequent application of the overglaze is facilitated, and the generation of the shrinkage glaze is reduced.
The thickness range of the surface glaze layer is most suitable, which is beneficial to improving the bonding strength with the green body and avoiding the generation of cracking.
The designed pattern is printed on the overglaze layer by adopting an ink-jet printing or roller printing mode, so that the bright texture, color and design of the ceramic tile are ensured; and effectively avoids the unevenness of the printing layer, and is beneficial to uniformly distributing the photochromic transparent glaze on the printing layer.
When the proportion of the photochromic transparent glaze is fixed, the thickness of the photochromic transparent glaze influences the glossiness of the transparent glaze, the ultraviolet isolation capability, the color development of the ceramic tile and other performances, the photochromic effect of the transparent glaze layer within the thickness range is most obvious, the ultraviolet blocking capability is optimal, and the pattern of the printing layer is clear and vivid.
The firing temperature is too high, the ceramic tile is easy to deform, the viscosity of the glaze material is increased, the exhaust is not facilitated, the glaze surface is easy to generate the phenomena of bubbling, pinholes or glaze flowing, and the quality and the transparency of the glaze layer are influenced; the temperature is too low, the ceramic effect of the ceramic tile is incomplete, the strength of the product is easily reduced, the firing temperature is favorable for the smoothness, the flatness and the uniformity of the glaze surface, the photochromic effect is obvious, and the effect of each position is uniform.
In conclusion, the photochromic transparent glaze disclosed by the invention has the synergistic effect of all components, the obtained glaze slip is uniform and good in fluidity, the surface of a ceramic tile fired and formed after the transparent glaze is applied is smooth, the photochromic effect at each position is uniform and obvious, and the color-changing temperature precision is high and reaches +/-1 ℃; can effectively block more than 80 percent of ultraviolet rays.
Example 1
A photochromic ceramic tile comprises a blank layer, a surface glaze layer, a printing layer and a photochromic transparent glaze layer; the photochromic transparent glaze layer comprises the following components in percentage by mass: 56 parts of SiO213 parts of Al2O32 parts of WO30.05 part of Fe2O30.7 part of TiO24 parts of CaO, 1 part of CdS, 5 parts of MgO and 5 parts of K2O, 3.5 parts of Na2O, 2.5 parts ZnO, 8 parts AgCl, 2.8 parts SrO and 1.7 parts BaO. The grain size of the AgCl is 90-100 nm.
Said WO3The preparation method is artificial hydrothermal induced synthesis and comprises the following steps: weighing 8g of sodium tungstate, weighing 12mL of distilled waterPutting the mixture into a beaker, putting the beaker on a stirrer, and dropwise adding fruit acid while stirring until the sodium tungstate is completely dissolved; weighing 13mL of HNO with the concentration of 25%3Putting into a beaker, and stirring uniformly; moving the mixture to a polytetrafluoroethylene lining, and carrying out hydrothermal reaction for 4 hours at 90 ℃; washing the reaction product with distilled water, and drying in a 60 ℃ oven to obtain WO with the particle size of 250-270 nm3And (3) powder.
The preparation method of the photochromic ceramic tile comprises the following steps: spreading ceramic powder at the bottom of the press under 3800T, and dry-pressing; applying a cover glaze layer with the thickness of 0.4mm on the blank body in a glaze spraying mode; printing the designed pattern on the overglaze layer by adopting an ink-jet printing mode; applying photochromic transparent glaze on the printing layer in a glaze pouring mode, wherein the thickness of the transparent glaze layer is 0.8 mm; and finally, firing and molding the photochromic ceramic tile at the temperature of 1200-1250 ℃.
Example 2
A photochromic ceramic tile comprises a blank layer, a surface glaze layer, a printing layer and a photochromic transparent glaze layer; the photochromic transparent glaze layer comprises the following components in percentage by mass: 58 parts of SiO215 parts of Al2O32.5 parts of WO30.04 parts of Fe2O30.5 part of TiO25 parts of CaO, 1.3 parts of CdS, 4.5 parts of MgO and 4 parts of K2O, 3 parts of Na2O, 2.2 parts of ZnO, 4 parts of Ag NO32 parts of SrO and 1.2 parts of BaO. The grain size of the AgCl is 50-60 nm.
Said WO3The preparation method is artificial hydrothermal induced synthesis and comprises the following steps: weighing 6g of sodium tungstate, weighing 10mL of distilled water, putting the distilled water into a beaker, putting the beaker on a stirrer, and dropwise adding tartaric acid while stirring until the sodium tungstate is completely dissolved; weighing 10mL of HNO with the concentration of 30%3Putting into a beaker, and stirring uniformly; moving the mixture to a polytetrafluoroethylene lining, and carrying out hydrothermal reaction for 4 hours at 100 ℃; washing the reaction product with distilled water, and drying in a 60 ℃ oven to obtain WO with the particle size of 380-400 nm3And (3) powder.
The preparation method of the photochromic ceramic tile comprises the following steps: spreading ceramic powder at the bottom of a press under 4500T, and dry-pressing; applying a cover glaze layer with the thickness of 0.3mm on the blank body in a glaze spraying mode; printing the designed pattern on the overglaze layer by adopting a roller printing mode; applying photochromic transparent glaze on the printing layer in a glaze pouring mode, wherein the thickness of the transparent glaze layer is 0.7 mm; and finally, firing and molding the photochromic ceramic tile at the temperature of 1200-1250 ℃.
Example 3
A photochromic ceramic tile comprises a blank layer, a surface glaze layer, a printing layer and a photochromic transparent glaze layer; the photochromic transparent glaze layer comprises the following components in percentage by mass: 55 parts of SiO217 parts of Al2O34 parts of WO30.03 part of Fe2O31 part of TiO23.5 parts of CaO, 2 parts of CdS, 6 parts of MgO and 4.5 parts of K2O, 4 parts of Na2O, 3 parts of ZnO, 6 parts of AgCl and 4 parts of AgNO34 parts of SrO and 2 parts of BaO. The grain size of the AgCl is 60-70 nm.
Said WO3The preparation method is artificial hydrothermal induced synthesis and comprises the following steps: weighing 5g of sodium tungstate, weighing 15mL of distilled water, putting the distilled water into a beaker, putting the beaker on a stirrer, and dropwise adding tartaric acid while stirring until the sodium tungstate is completely dissolved; weighing 15mL of 35% HNO3Putting into a beaker, and stirring uniformly; moving the mixture to a polytetrafluoroethylene lining, and carrying out hydrothermal reaction at 80 ℃ for 4 h; washing the reaction product with distilled water, and drying in a 60 ℃ oven to obtain WO with the particle size of 200-220 nm3And (3) powder.
The preparation method of the photochromic ceramic tile comprises the following steps: spreading ceramic powder at the bottom of a press under 4000T, and dry-pressing and molding; spreading a cover glaze layer on the blank body in a glaze spraying mode, wherein the thickness of the cover glaze layer is 0.5 mm; printing the designed pattern on the overglaze layer by adopting a roller printing mode; applying photochromic transparent glaze on the printing layer in a glaze pouring mode, wherein the thickness of the transparent glaze layer is 0.5 mm; and finally, firing and molding the photochromic ceramic tile at the temperature of 1200-1250 ℃.
Example 4
A photochromic ceramic tile comprises a blank layer, a surface glaze layer, a printing layer and a photochromic transparent glaze layer; the photochromic transparent glaze layer is composed ofThe composition comprises the following components in percentage by mass: 57 parts of SiO215 parts of Al2O33 parts of WO30.04 parts of Fe2O30.8 part of TiO 23 parts of CaO, 1.8 parts of CdS, 4 parts of MgO and 5.5 parts of K2O, 3.5 parts of Na2O, 2 parts of ZnO, 3 parts of AgCl and 3 parts of AgNO 33 parts of SrO and 1.5 parts of BaO. The grain size of the AgCl is 80-90 nm.
Said WO3The preparation method is artificial hydrothermal induced synthesis and comprises the following steps: weighing 7g of sodium tungstate, weighing 10mL of distilled water, putting the distilled water into a beaker, putting the beaker on a stirrer, and dropwise adding tartaric acid while stirring until the sodium tungstate is completely dissolved; weighing 5mL of HNO with concentration of 28%3Putting into a beaker, and stirring uniformly; moving the mixture to a polytetrafluoroethylene lining, and carrying out hydrothermal reaction for 4 hours at 90 ℃; washing the reaction product with distilled water, and drying in a 60 ℃ oven to obtain WO with the particle size of 300-330 nm3And (3) powder.
The preparation method of the photochromic ceramic tile comprises the following steps: spreading ceramic powder at the bottom of a press under the pressure of 5000T, and dry-pressing and molding; spreading a cover glaze layer on the blank body in a glaze spraying mode, wherein the thickness of the cover glaze layer is 0.2 mm; printing the designed pattern on the overglaze layer by adopting an ink-jet printing mode; applying photochromic transparent glaze on the printing layer in a glaze pouring mode, wherein the thickness of the transparent glaze layer is 0.6 mm; and finally, firing and molding the photochromic ceramic tile at the temperature of 1200-1250 ℃.
The photochromic ceramic tile obtained by the four embodiments has obvious photochromic effect, the accuracy of the photochromic temperature can reach +/-1 ℃, and more than 80% of ultraviolet ray heat radiation can be blocked.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (10)
1. A photochromic ceramic tile, comprising: the blank layer, the overglaze layer, the printing layer and the photochromic transparent glaze layer; the photochromic transparent glaze layer is composed ofThe composition comprises the following components in percentage by mass: 55-58 parts of SiO213 to 17 parts of Al2O32-4 parts of WO30.03-0.05 part of Fe2O30.5 to 1 part of TiO23-5 parts of CaO, 1-2 parts of CdS, 4-6 parts of MgO and 4-6 parts of K2O, 3-4 parts of Na2O, 2-3 parts of ZnO, 4-10 parts of AgX, 2-4 parts of SrO and 1-2 parts of BaO; wherein AgX is AgCl or AgNO3One or two of them.
2. The photochromic ceramic tile of claim 1, wherein the AgX has a particle size of 50-100 nm.
3. The photochromic ceramic tile of claim 1, wherein the WO is3The preparation method is artificial hydrothermal induced synthesis and comprises the following steps:
step A001, weighing sodium tungstate, weighing distilled water, putting the distilled water into a beaker, putting the beaker on a stirrer, and dropwise adding tartaric acid while stirring until the sodium tungstate is completely dissolved;
step A002, weighing HNO3Putting into a beaker, and stirring uniformly;
step A003, transferring the mixture obtained in the step A002 to a polytetrafluoroethylene lining, and carrying out hydrothermal reaction; washing the reaction product with distilled water, and drying in an oven to obtain WO3And (3) powder.
4. The photochromic ceramic tile of claim 3, wherein the sodium tungstate is added in an amount of 5-8 g, HNO3The addition amount of (A) is 5-15 mL, and HNO3The concentration of (A) is 25-35%.
5. The photochromic ceramic tile of claim 3, wherein the WO is3The particle size of (A) is 200 to 400 nm.
6. The photochromic ceramic tile according to any one of claims 1 to 5, wherein the preparation method comprises the following steps:
b001, paving the ceramic powder at the bottom of a press, and performing dry pressing to obtain a ceramic tile blank;
b002, spreading a cover glaze on the blank body obtained in the step B001;
b003, printing a design pattern on the ceramic tile overglaze of the B002;
and B004, distributing and applying the photochromic transparent glaze on the ceramic tile in the step B003, and firing and forming to obtain the photochromic ceramic tile.
7. The photochromic ceramic tile of claim 6, wherein the pressure of the press in step B001 is 3800-5000T.
8. The photochromic ceramic tile of claim 6, wherein the step B002 is performed by applying overglaze in one of pouring glaze and spraying glaze; the thickness of the overglaze layer is 0.2-0.5 mm.
9. The photochromic ceramic tile of claim 6, wherein the printing of step B003 comprises one of ink-jet printing and roll printing.
10. The photochromic ceramic tile of claim 6, wherein the thickness of the photochromic transparent glaze layer in step B004 is 0.5-0.8 mm, and the firing and forming temperature is 1200-1250 ℃.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111792670A (en) * | 2020-06-22 | 2020-10-20 | 佛山欧神诺陶瓷有限公司 | Titanium dioxide photocatalyst, preparation method thereof and application thereof in ceramic tiles |
| CN112028667A (en) * | 2020-08-26 | 2020-12-04 | 佛山欧神诺陶瓷有限公司 | Gray marble-imitated ceramic tile and preparation method thereof |
| CN113152829A (en) * | 2021-03-23 | 2021-07-23 | 广东职业技术学院 | Photochromic ceramic background wall and preparation method and application thereof |
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