CN113087503A - Once-fired luminescent ceramic tile and preparation method thereof - Google Patents

Once-fired luminescent ceramic tile and preparation method thereof Download PDF

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Publication number
CN113087503A
CN113087503A CN202110362296.1A CN202110362296A CN113087503A CN 113087503 A CN113087503 A CN 113087503A CN 202110362296 A CN202110362296 A CN 202110362296A CN 113087503 A CN113087503 A CN 113087503A
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China
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powder
luminescent
fired
ceramic tile
once
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Chinese (zh)
Inventor
王晓娇
李智鸿
钟保民
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Foshan Dongpeng Ceramic Co Ltd
Foshan Dongpeng Ceramic Development Co Ltd
Guangdong Dongpeng Holdings Co Ltd
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Foshan Dongpeng Ceramic Co Ltd
Foshan Dongpeng Ceramic Development Co Ltd
Guangdong Dongpeng Holdings Co Ltd
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Priority to CN202110362296.1A priority Critical patent/CN113087503A/en
Publication of CN113087503A publication Critical patent/CN113087503A/en
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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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • 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
    • C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
    • C03C8/04—Frit compositions, i.e. in a powdered or comminuted form containing zinc
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    • 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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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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Abstract

The invention discloses a once-fired luminescent ceramic tile and a preparation method thereof, wherein the preparation method of the once-fired luminescent ceramic tile comprises the following steps: step A1: spreading the blank powder; step A2: distributing surface layer powder on the surface of the blank powder; step A3: distributing luminous glaze on the surface of the surface layer powder; step A4: pressing and forming to obtain a green body; step A5: drying the green body, and then putting the green body into a kiln for firing; after edging and polishing operations, the once-fired luminous ceramic tile is obtained. The preparation method of the once-fired luminescent ceramic tile adopts a mode of multiple material distribution, a press is used for once forming, and the once-fired luminescent ceramic tile can be obtained by firing only once after entering a kiln, so that a luminescent decorative layer does not need to be fired on the surface of a biscuit firing blank or a fired blank for two or three times, the firing times required by the luminescent ceramic tile are reduced, the fuel is saved, the production cost of the luminescent ceramic tile is reduced, and the purposes of energy conservation and emission reduction can be achieved.

Description

Once-fired luminescent ceramic tile and preparation method thereof
Technical Field
The invention relates to the field of building ceramics, in particular to a once-fired luminous ceramic tile and a preparation method thereof.
Background
The luminous ceramic tile is characterized in that after the afterglow luminous material is introduced into the ceramic tile, the ceramic tile has the characteristic of continuous luminescence under the dark condition after absorbing external energy. Because the high-temperature luminous performance of the luminescent material is poor, most of the existing luminescent ceramic tiles are products of two-degree firing or three-degree firing, a biscuit firing blank or a fired blank is required to be used as a base material, luminescent glaze is distributed on the surface of the biscuit firing blank or the fired blank, and the luminescent ceramic tiles can be prepared by firing again. The existing production process needs to consume a large amount of fuel for multiple times of firing, not only does not meet the requirement of environmental protection production, but also improves the production cost.
Disclosure of Invention
The invention aims to provide a once-fired luminescent ceramic tile to solve the problem that the luminescent ceramic tile needs to be fired for many times in the prior art; in addition, a preparation method of the once-fired luminescent ceramic tile is also provided, so as to prepare the once-fired luminescent ceramic tile.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a preparation method of a once-fired luminescent ceramic tile, which comprises the following steps:
step A1: spreading the blank powder;
step A2: distributing surface layer powder on the surface of the blank powder;
step A3: distributing luminous glaze on the surface of the surface layer powder;
step A4: pressing and forming to obtain a green body;
step A5: drying the green body, and then putting the green body into a kiln for firing; after edging and polishing operations, the once-fired luminous ceramic tile is obtained.
The preparation method of the once-fired luminescent ceramic tile comprises the preparation of the luminescent glaze, and the preparation of the luminescent glaze comprises the following steps:
step S1: mixing luminescent powder with transparent frit powder to form luminescent powder;
step S2: and spraying a viscous substance on the luminescent powder, and performing granulation treatment to obtain the luminescent glaze.
According to the preparation method of the once-fired luminescent ceramic tile, the particle size of the luminescent glaze is 80-120 meshes.
According to the preparation method of the once-fired luminescent ceramic tile, the application thickness of the luminescent glaze in the step A3 is 1.5-5 mm;
the luminous glaze is uniformly distributed on the surface of the surface layer powder through a skip car, or is distributed on the surface of the surface layer powder through a digital distribution technology, and patterns are formed on the surface of the surface layer powder.
According to the preparation method of the once-fired luminescent ceramic tile, in the step A5, the firing temperature of the ceramic tile in the kiln is 950-1050 ℃, and the firing period is 35-90 min.
The invention provides a once-fired luminescent ceramic tile, which is prepared by the preparation method of the once-fired luminescent ceramic tile; the luminous glaze is prepared by mixing and granulating luminous powder and transparent frit powder, and the particle size of the luminous glaze is 80-120 meshes.
In the once-fired luminescent ceramic tile, the blank powder comprises the following chemical components in percentage by weight:
63.33～65.11％SiO2、17.75～18.25％Al2O3、1.6～1.7％Fe2O3、0.1～0.32％Ti2O、9.8～10.08％CaO、1.18～1.2％MgO、1.9～1.97％K2O、0.5～0.8％Na2O、0.56～3.27％B2O3and accompanying elements with the content of less than 0.01 percent brought by the mineral material;
the surface powder comprises the following chemical components in percentage by weight:
60～62％SiO2、6.8～7％Al2O3、0～0.15％Fe2O3、0～0.1％Ti2O、10～11％CaO、2.32～2.33％MgO、4.6～4.8％K2O、0～0.7％Li2O、9.5～9.8％ZnO、0.2～0.3％BaO、0.2～0.3％B2O3、3.0～3.2％Zr2o and accompanying elements with the content of less than 0.01 percent brought by the mineral materials.
In the once-fired luminescent ceramic tile, the transparent frit powder comprises the following chemical components in percentage by weight:
67.52％SiO2、6.66％Al2O3、0.14％Fe2O3、4.26％CaO、1.04％MgO、3.44％K2O、3.53％Na2O、6.95％B2O30.30 percent of ZnO, 5.91 percent of BaO and associated elements with the content of less than 0.01 percent brought by mineral materials.
In the once-fired luminescent ceramic tile, the weight ratio of the luminescent powder to the transparent frit powder is (1:10) - (1: 4).
In the once-fired luminescent ceramic tile, the luminescent powder is one or two of rare earth doped aluminate and rare earth doped silicate.
The preparation method of the once-fired luminescent ceramic tile has the following beneficial effects:
the preparation method of the once-fired luminescent ceramic tile comprises the steps of distributing materials for many times, forming by a press once, firing only once after entering a kiln to obtain the once-fired luminescent ceramic tile, and firing the luminescent decorative layer on the surface of a biscuit firing blank or a fired blank for two or three times without firing the luminescent decorative layer on the surface of the biscuit firing blank or the fired blank for two or three times, so that the firing times required by the luminescent ceramic tile are reduced, the fuel is saved, the production cost of the luminescent ceramic tile is reduced, and the purposes of energy conservation and emission.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments. In order to facilitate an understanding of the present invention, a more complete description of the present invention is provided below. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.
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. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The invention provides a preparation method of a once-fired luminescent ceramic tile, which comprises the following steps:
step A1: spreading the blank powder;
step A2: distributing surface layer powder on the surface of the blank powder;
step A3: distributing luminous glaze on the surface of the surface layer powder;
step A4: pressing and forming to obtain a green body;
step A5: drying the green body, and then putting the green body into a kiln for firing; after edging and polishing operations, the once-fired luminous ceramic tile is obtained.
The prior luminous ceramic tile takes a biscuit firing blank or a fired blank as a base material, and luminous glaze is distributed on the surface of the biscuit firing blank or the fired blank for secondary or tertiary firing so as to form a luminous layer on the surface of the biscuit firing blank or the fired blank. The preparation method comprises the steps of applying luminous glaze cloth to the surface of surface layer powder to form a green body of the luminous ceramic tile, then pressing and forming the green body, and firing the formed green body in a kiln after the formed green body is dried; the ceramic tile can be prepared by one-time firing.
In the specific embodiment of the invention, the blank powder, the surface layer powder and the luminescent glaze are sequentially distributed in a press mold frame, and the blank powder, the surface layer powder and the luminescent glaze form a green body in the press mold frame; after the cloth is finished, the press presses the cloth to obtain a green body in a way of normal beating, namely a way of firstly spreading the bottom cloth and then spreading the cloth. Drying the formed green body, and then putting the green body into a kiln for firing; the green body powder is fired to form a green body of the luminous ceramic tile, and the luminous glaze is fired to form a luminous decorative layer of the luminous ceramic tile; and firing the surface layer powder to form a transition layer of the green body and the luminous decorative layer.
Because the color of the blank is darker, such as grey or brown, the decoration of the blank is lower, if the luminous glaze is directly applied on the powder of the blank, the luminous decoration layer formed by the luminous glaze is affected by the color of the blank, so that the luminous effect is deteriorated, and the decoration is reduced. Therefore, surface layer powder is distributed on the green body powder and the luminous glaze, the surface layer powder is white, a light-colored transition layer is formed after sintering, the color of the green body can be covered, and the luminous decorative layer has better luminous effect and decoration on the light-colored transition layer.
The luminous ceramic tile is obtained by multiple material distribution and one-step molding by a press, and only one-step firing is needed after the luminous ceramic tile is placed into a kiln, and a luminous decorative layer does not need to be fired on the surface of a biscuit firing blank or a fired blank for two or three times, so that the firing times required by the luminous ceramic tile are reduced, the fuel is saved, the production cost of the luminous ceramic tile is reduced, and the purposes of energy conservation and emission reduction can be achieved.
In the specific production process, the kilns for firing the luminous ceramic tiles comprise a roller kiln, a tunnel kiln and a shuttle kiln.
Specifically, the preparation of the luminescent glaze comprises the following steps:
step S1: mixing luminescent powder with transparent frit powder to form luminescent powder;
step S2: and spraying a viscous substance on the luminescent powder, and performing granulation treatment to obtain the luminescent glaze.
The luminous glaze comprises luminous powder and transparent frit powder, and the luminous powder can absorb a light source and continuously emit light under a dark condition; the luminescent powder is a key component capable of emitting light in a dark environment in the luminescent glaze. The transparent frit powder is melted at a lower sintering temperature, and the light-emitting powder is wrapped after the transparent frit powder is melted, so that the light-emitting powder is prevented from being oxidized by oxygen, and the light-emitting effect of the light-emitting powder is improved.
The luminescent glaze is obtained by directly mixing the transparent frit powder and the luminescent powder, and the method of wet ball milling is avoided, the luminescent powder is mixed into the transparent frit to prepare the frit glaze, so that the contact between the luminescent powder and ball milling media and water is reduced as much as possible, the damage degree of the luminescent powder is reduced, and the luminescent brightness is provided.
In a specific production process, the viscous substances comprise methyl paste, printing oil for silk screen, glue for dry ceramic particles and dextrin. The granulation treatment can refer to the existing ceramic powder granulation technology, the granulation treatment is carried out by atomizing and spraying viscous substances, the luminescent powder is easy to loosen and not easy to form during pressing, and the spraying of the viscous substances such as methyl paste solution and the like is beneficial to pressing and forming.
Preferably, the particle size of the luminescent glaze is 80-120 meshes. By adopting the particle size range, when the frit powder and the luminescent powder are mixed into the luminescent glaze, the situation that the luminescent powder with large fineness is gradually accumulated at the bottom layer of the luminescent glaze due to overlarge particle size difference is avoided, so that the luminescent powder and the transparent frit powder are difficult to be uniformly mixed, and the luminescent effect of the luminescent ceramic tile is influenced. Moreover, if the fineness of the luminescent powder is less than 80 meshes, the transparent frit powder is difficult to completely wrap, and the glaze surface is easy to be uneven after firing; if the fineness of the luminescent powder is more than 120 meshes, the luminescent powder is too fine, and the problem that the luminescent effect of the luminescent powder is poor and even the luminescent powder fails is caused by the ablation effect of the glaze on the luminescent powder in the firing process. The particle size of the transparent frit powder is close to that of the luminescent powder, so that the problem that the luminescent powder and the transparent frit powder are difficult to mix uniformly due to overlarge particle size difference is avoided, and the influence of the particle size difference on the luminescent effect of the luminescent ceramic tile is avoided.
Specifically, the application thickness of the luminescent glaze in the step A3 is 1.5-5 mm;
the luminous glaze is uniformly distributed on the surface of the surface layer powder through a skip car, or is distributed on the surface of the surface layer powder through a digital distribution technology, and patterns are formed on the surface of the surface layer powder.
The method for distributing and applying the luminescent glaze in the preparation method is a dry-method material distribution and thick polishing method, and the dry-method material distribution and thick polishing method is to spread the dry luminescent glaze on the surface of the surface layer powder by a skip car or a digital material distribution technology.
In one embodiment, the luminous glaze is applied by a skip, a layer of uniform luminous glaze is formed on the surface of the surface layer powder, and after being fired, the luminous glaze forms a uniform luminous decorative layer. In another embodiment, the luminous glaze is applied by a digital cloth technology, the luminous glaze forms a specific pattern on the surface of the surface layer powder, after being fired, a luminous decorative layer with the specific pattern is formed on the surface of the transition layer, and the luminous decorative layer can emit corresponding luminous textures in a dark environment after absorbing a light source.
Specifically, the firing temperature of the kiln firing in the step A5 is 950-1050 ℃, and the firing period is 35-90 min. When firing is carried out, the firing temperature of the green body needs to reach 950-1050 ℃, and the luminescent ceramic tile can be formed after a firing period of 35-90 min. The firing temperature can ensure that the green body can be fired, and simultaneously, the problem that the melting action of the transparent frit powder on the luminescent powder is enhanced due to overhigh firing temperature can be avoided, and the loss of the luminescent intensity is reduced.
The invention also provides a once-fired luminescent ceramic tile, which is prepared by the preparation method of the once-fired luminescent ceramic tile; the luminous glaze is prepared by mixing and granulating luminous powder and transparent frit powder, and the particle size of the luminous glaze is 80-120 meshes.
Further, the blank powder comprises the following chemical components in percentage by weight:
63.33～65.11％SiO2、17.75～18.25％Al2O3、1.6～1.7％Fe2O3、0.1～0.32％Ti2O、9.8～10.08％CaO、1.18～1.2％MgO、1.9～1.97％K2O、0.5～0.8％Na2O、0.56～3.27％B2O3and accompanying elements with the content of less than 0.01 percent brought by the mineral material;
the surface powder comprises the following chemical components in percentage by weight:
60～62％SiO2、6.8～7％Al2O3、0～0.15％Fe2O3、0～0.1％Ti2O、10～11％CaO、2.32～2.33％MgO、4.6～4.8％K2O、0～0.7％Li2O、9.5～9.8％ZnO、0.2～0.3％BaO、0.2～0.3％B2O3、3.0～3.2％Zr2o and accompanying elements with the content of less than 0.01 percent brought by the mineral materials.
The green body powder and the surface layer powder of the composition can be fired at a firing temperature of 950-1050 ℃, and the transparent frit powder can avoid erosion of luminescent powder at high temperature by matching with the melting temperature of luminescent glaze.
Still further, the transparent frit powder comprises the following chemical components in percentage by weight:
67.52％SiO2、6.66％Al2O3、0.14％Fe2O3、4.26％CaO、1.04％MgO、3.44％K2O、3.53％Na2O、6.95％B2O30.30 percent of ZnO, 5.91 percent of BaO and associated elements with the content of less than 0.01 percent brought by mineral materials.
The transparent frit powder of the composition can be melted at a lower firing temperature, and the erosion of high temperature to the luminescent powder is avoided. The transparent frit powder has a high viscosity and a low expansion coefficient. The sum of the chemical components of the above-described transparent frit powder was 99.75%, and the remaining 0.25% was the loss on ignition.
Preferably, the weight ratio of the luminescent powder to the transparent frit powder is (1:10) - (1: 4). When the weight ratio of the luminescent powder to the transparent frit powder is less than 1:10, the luminescent effect is poor and the long afterglow effect cannot be achieved; when the weight ratio of the luminescent powder to the transparent frit powder is more than 1:4, the luminescent powder is difficult to wrap after the transparent frit powder is melted, which easily causes the problems of uneven glaze layer and oxygen oxidation of the luminescent powder.
In a specific embodiment of the present invention, the luminescent powder is one or both of rare earth doped aluminate and rare earth doped silicate. Preferably, the luminescent powder is blue-green luminescent powder Sr4AL14O25: eu, Dy and sky blue Sr2MgSi2O7: eu, Dyd. The luminescent powder has good color development effect and long duration.
Example 1
A preparation method of a once-fired luminescent ceramic tile comprises the following steps:
mixing luminescent powder with transparent frit powder to form luminescent powder;
spraying a viscous substance on the luminescent powder, and performing granulation treatment to obtain a luminescent glaze;
spreading the blank powder;
distributing surface layer powder on the surface of the blank powder;
distributing luminous glaze on the surface of the surface layer powder;
pressing and forming to obtain a green body;
drying the green body, and then putting the green body into a kiln for firing; after edging and polishing operations, the once-fired luminous ceramic tile is obtained.
The chemical components of the blank powder and the surface layer powder are as follows:
table 1: EXAMPLE 1 chemical composition of green body powder and Top coat powder
Figure BDA0003006028310000091
The chemical composition of the transparent frit powder in the luminescent frit is 67.52% SiO2、6.66％Al2O3、0.14％Fe2O3、4.26％CaO、1.04％MgO、3.44％K2O、3.53％Na2O、6.95％B2O30.30 percent of ZnO, 5.91 percent of BaO and other accompanying elements with the content of less than 0.01 percent of the mineral materials. The luminescent powder is blue-green luminescent powder Sr4AL14O 25: eu and Dy.
The particle size of the luminescent glaze is 80-120 meshes, the weight ratio of the luminescent powder to the transparent frit powder is (1:10), the luminescent powder and the transparent frit powder are uniformly distributed on the surface of the surface layer powder by a skip car, the distribution thickness is 1.5mm, the firing temperature is 1050 ℃, and the heat preservation time is 20 min.
Example 2
The preparation method of example 2 is identical to that of example 1, and the chemical compositions of the transparent frit powder, luminescent powder, green body powder and top layer powder in example 2 are identical to those of the luminescent frit, green body powder and top layer powder of example 1.
The particle size of the luminescent glaze is 80-120 meshes, the weight ratio of the luminescent powder to the transparent frit powder is (1:10), the luminescent powder and the transparent frit powder are uniformly distributed on the surface of the surface layer powder by a skip car, the distribution thickness is 2.5mm, the firing temperature is 1050 ℃, and the heat preservation time is 20 min.
Example 3
The preparation method of example 3 is identical to that of example 1, and the chemical compositions of the green powder and the top powder in example 3 are as follows:
table 2: EXAMPLE 3 chemical composition of green body powder and Top coat powder
Figure BDA0003006028310000101
The chemical composition of the transparent frit powder and the type of luminescent powder in the luminescent frit were identical to those of example 1. The particle size of the luminescent glaze is 80-120 meshes, the weight ratio of the luminescent powder to the transparent frit powder is (1:10), the luminescent powder and the transparent frit powder are uniformly distributed on the surface of the surface layer powder by a skip car, the distribution thickness is 1.5mm, the firing temperature is 960 ℃, and the heat preservation time is 20 min.
Example 4
The preparation method of example 4 was identical to that of example 1, and the chemical compositions of the transparent frit powder, luminescent powder, green body powder and top layer powder in example 2 were identical to those of the luminescent frit, green body powder and top layer powder of example 1.
The particle size of the luminescent glaze is 80-120 meshes, the weight ratio of the luminescent powder to the transparent frit powder is (1:4), the luminescent powder and the transparent frit powder are uniformly distributed on the surface of the surface layer powder by a skip car, the thickness of the luminescent powder and the transparent frit powder is 5mm, the firing temperature is 1050 ℃, and the heat preservation time is 20 min.
Afterglow luminance tests were performed on the luminescent ceramic tiles prepared in examples 1 to 4, and table 3 was prepared.
The afterglow brightness test specifically comprises the following operations: preparing a sample plate from the luminous ceramic tile, placing the sample plate into an ultraviolet lamp box, irradiating for 10min by ultraviolet light, then placing the sample plate into a dark cell, and testing the afterglow brightness values of the luminous ceramic tile after 15min, 30min and 1 h.
TABLE 3 test results for example groups 1 to 4
Figure BDA0003006028310000111
As can be seen from Table 3, the afterglow luminance of the luminescent ceramic tile is still weak after 1 hour, and the luminescent ceramic tile has a better luminescent effect.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Other embodiments of the invention will occur to those skilled in the art without the exercise of inventive faculty based on the explanations herein, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined in the appended claims.

Claims (10)

1. A preparation method of a once-fired luminescent ceramic tile is characterized by comprising the following steps: the method comprises the following steps:
step A1: spreading the blank powder;
step A2: distributing surface layer powder on the surface of the blank powder;
step A3: distributing luminous glaze on the surface of the surface layer powder;
step A4: pressing and forming to obtain a green body;
step A5: drying the green body, and then putting the green body into a kiln for firing; after edging and polishing operations, the once-fired luminous ceramic tile is obtained.
2. The method for preparing a once-fired luminescent ceramic tile according to claim 1, wherein the method comprises the following steps: the preparation method comprises the following steps of:
step S1: mixing luminescent powder with transparent frit powder to form luminescent powder;
step S2: and spraying a viscous substance on the luminescent powder, and performing granulation treatment to obtain the luminescent glaze.
3. The method for preparing a once-fired luminescent ceramic tile according to claim 2, wherein: the particle size of the luminescent glaze is 80-120 meshes.
4. The method for preparing a once-fired luminescent ceramic tile according to claim 1, wherein the method comprises the following steps: the application thickness of the luminescent glaze in the step A3 is 1.5-5 mm;
the luminous glaze is uniformly distributed on the surface of the surface layer powder through a skip car, or is distributed on the surface of the surface layer powder through a digital distribution technology, and patterns are formed on the surface of the surface layer powder.
5. The method for preparing a once-fired luminescent ceramic tile according to claim 1, wherein the method comprises the following steps: and step A5, the firing temperature of kiln firing in the step A5 is 950-1050 ℃, and the firing period is 35-90 min.
6. A once-fired luminous ceramic tile is characterized in that: the luminescent ceramic tile is prepared by the preparation method of the once-fired luminescent ceramic tile as claimed in any one of claims 1-5; the luminous glaze is prepared by mixing and granulating luminous powder and transparent frit powder, and the particle size of the luminous glaze is 80-120 meshes.
7. The once-fired luminescent ceramic tile as claimed in claim 6, wherein: the green body powder comprises the following chemical components in percentage by weight:
63.33～65.11％SiO2、17.75～18.25％Al2O3、1.6～1.7％Fe2O3、0.1～0.32％Ti2O、9.8～10.08％CaO、1.18～1.2％MgO、1.9～1.97％K2O、0.5～0.8％Na2O、0.56～3.27％B2O3and accompanying elements with the content of less than 0.01 percent brought by the mineral material;
the surface powder comprises the following chemical components in percentage by weight:
60～62％SiO2、6.8～7％Al2O3、0～0.15％Fe2O3、0～0.1％Ti2O、10～11％CaO、2.32～2.33％MgO、4.6～4.8％K2O、0～0.7％Li2O、9.5～9.8％ZnO、0.2～0.3％BaO、0.2～0.3％B2O3、3.0～3.2％Zr2o and accompanying elements with the content of less than 0.01 percent brought by the mineral materials.
8. The once-fired luminescent ceramic tile as claimed in claim 6, wherein: the transparent frit powder comprises the following chemical components in percentage by weight:
67.52％SiO2、6.66％Al2O3、0.14％Fe2O3、4.26％CaO、1.04％MgO、3.44％K2O、3.53％Na2O、6.95％B2O30.30 percent of ZnO, 5.91 percent of BaO and the content brought by mineral materials is less than 0.01% of accompanying elements.
9. The once-fired luminescent ceramic tile as claimed in claim 6, wherein: the weight ratio of the luminescent powder to the transparent frit powder is (1:10) - (1: 4).
10. The once-fired luminescent ceramic tile as claimed in claim 6, wherein: the luminescent powder is one or two of rare earth doped aluminate and rare earth doped silicate.
CN202110362296.1A 2021-04-02 2021-04-02 Once-fired luminescent ceramic tile and preparation method thereof Pending CN113087503A (en)

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CN112010679A (en) * 2020-10-29 2020-12-01 佛山市东鹏陶瓷发展有限公司 Co-firing method-based luminescent ceramic tile preparation process and luminescent ceramic tile prepared by same
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CN109627053A (en) * 2019-01-24 2019-04-16 信益陶瓷(中国)有限公司 A kind of light-accumulated luminous Imitation Rock Porcelain Tiles and its manufacturing method
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Application publication date: 20210709