CN117567179B - Low-water-absorption ceramic tile capable of enhancing ceramic tile bonding strength and preparation method thereof - Google Patents
Low-water-absorption ceramic tile capable of enhancing ceramic tile bonding strength and preparation method thereof Download PDFInfo
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- CN117567179B CN117567179B CN202410050136.7A CN202410050136A CN117567179B CN 117567179 B CN117567179 B CN 117567179B CN 202410050136 A CN202410050136 A CN 202410050136A CN 117567179 B CN117567179 B CN 117567179B
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- 239000000919 ceramic Substances 0.000 title claims abstract description 125
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 61
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000002955 isolation Methods 0.000 claims abstract description 93
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 22
- 230000005484 gravity Effects 0.000 claims abstract description 21
- 239000002002 slurry Substances 0.000 claims abstract description 21
- 238000010304 firing Methods 0.000 claims abstract description 20
- 239000000126 substance Substances 0.000 claims abstract description 19
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 17
- 229910052742 iron Inorganic materials 0.000 claims abstract description 16
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000011449 brick Substances 0.000 claims description 36
- 239000000395 magnesium oxide Substances 0.000 claims description 31
- 239000002994 raw material Substances 0.000 claims description 27
- 229910052593 corundum Inorganic materials 0.000 claims description 18
- 239000010431 corundum Substances 0.000 claims description 18
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 18
- 239000005995 Aluminium silicate Substances 0.000 claims description 16
- 235000012211 aluminium silicate Nutrition 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 16
- 239000011734 sodium Substances 0.000 claims description 16
- JQPQZHIUHRBBHU-UHFFFAOYSA-N [Na].[Mg].[Ca] Chemical compound [Na].[Mg].[Ca] JQPQZHIUHRBBHU-UHFFFAOYSA-N 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 12
- 239000010941 cobalt Substances 0.000 claims description 11
- 229910017052 cobalt Inorganic materials 0.000 claims description 11
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- 239000001038 titanium pigment Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims 3
- 230000004888 barrier function Effects 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 15
- 229910004298 SiO 2 Inorganic materials 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 115
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 15
- 238000005245 sintering Methods 0.000 description 15
- 239000000047 product Substances 0.000 description 14
- 238000007688 edging Methods 0.000 description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 8
- 239000004568 cement Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910052863 mullite Inorganic materials 0.000 description 3
- 239000011265 semifinished product Substances 0.000 description 3
- 229910052596 spinel Inorganic materials 0.000 description 3
- 239000011029 spinel Substances 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 241001448624 Miliaria Species 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- NWXHSRDXUJENGJ-UHFFFAOYSA-N calcium;magnesium;dioxido(oxo)silane Chemical compound [Mg+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O NWXHSRDXUJENGJ-UHFFFAOYSA-N 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910052637 diopside Inorganic materials 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C03C8/20—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions containing titanium compounds; containing zirconium compounds
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Finishing Walls (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention relates to the technical field of building ceramics, in particular to a low-water-absorption ceramic tile for enhancing the bonding strength of the ceramic tile and a preparation method thereof, comprising the following steps: A. preparing a blank layer; B. the bottom of the green body layer is provided with an isolation covering glaze; the chemical components of the isolation covering glaze comprise SiO 2 35～40%、Al 2 O 3 40～45%、Fe 2 O 3 0.1～0.3%、TiO 2 6～10%、CaO 1.3～2.3%、MgO 2～3%、K 2 O 0.1～0.4%、Na 2 3.5 to 4 percent of O and 0.5 to 2 percent of loss on ignition; C. and rolling the tile bottom slurry at the bottom of the isolation covering glaze layer, and firing in a kiln to obtain the low-water-absorption ceramic tile with enhanced ceramic tile bonding strength, wherein the specific gravity of the tile bottom slurry is 1.04-1.1. According to the scheme, the isolation covering glaze layer for enhancing the bonding strength of the tile is additionally arranged at the bottom of the green body layer, so that the bonding strength of the tile in the paving process can be enhanced, a certain isolation effect can be achieved, the tile is used for partially replacing the existing tile bottom slurry, the bonding strength of the tile is further enhanced, and meanwhile, the paving efficiency of the tile is improved.
Description
Technical Field
The invention relates to the technical field of building ceramics, in particular to a low-water-absorption ceramic tile for enhancing the bonding strength of the ceramic tile and a preparation method thereof.
Background
The adhesive property between the cement bonding layer and the ceramic tile after the traditional ceramic tile is paved, and the lower the water absorption (E value) of the ceramic tile is, the lower the adhesive property is. The main reasons are as follows: the sintering degree of the ceramic tile product with low water absorption rate (E is less than 0.1%) is higher, so that the surface layer at the bottom of the ceramic tile is smoother, the density is higher, micropores and pits are fewer, and firm interlocking formed after hydration reaction of the ceramic tile and a cement bonding layer is reduced.
In addition, the residual stress of the large-specification low-water-absorption ceramic tile product after high-temperature firing is low, so that the ceramic tile product is not easy to deform. While lower deformation causes the stress created by the contact interface of the tile bottom with the cement bond layer to be mostly concentrated in the relatively weaker cement bond layer. Meanwhile, due to the application of the large-size ceramic tile product, the reserved seams in unit area are reduced, and the reserved seams capable of releasing the supply force and deforming are reduced. The factors in the aspects can lead to the cement bonding layer to be subjected to larger acting force, so that the cement bonding layer is more easily damaged and broken, and finally, hollowness and falling off are formed in the tile paving and using processes. On one hand, the empty ceramic tile is easy to tilt or fall off in use, and the decoration effect is affected; on the other hand, when the empty drum phenomenon occurs in water using areas such as a balcony, a kitchen, a bathroom and the like, accumulated water is easily formed at the empty drum to generate malodor, and the living experience is seriously affected.
Insufficient bonding strength between the tile and the cement mortar based binder is one of the causes of hollowing. In solving the problem of increasing the strength of the ceramic tile and the adhesive, the ceramic tile adhesive is a commonly used mode, but the cost is often several times that of common cement mortar, and the construction cost is higher. In addition, through the research on the bonding strength of the ceramic tile and the adhesive, the water absorption rate of the ceramic tile blank is a very important factor for influencing the bonding strength, and the water absorption rate of the ceramic tile blank is improved, so that the risk of hollowing of the ceramic tile can be effectively reduced, and in order to ensure that the ceramic tile does not slip during the paving operation and is compact after the paving operation, some manufacturers can improve the bonding strength of the ceramic tile by improving the water absorption rate of the ceramic tile blank. However, the improvement of the water absorption of the ceramic tile blank body means that the damage strength, the breaking modulus and other mechanical property indexes of the ceramic tile product are reduced, and the application scene and the consumer group of the ceramic tile product are easily limited. Therefore, how to improve the paving bonding strength of the ceramic tile with low water absorption rate becomes a difficult problem in the building ceramic industry.
Further, in the production process of modern ceramic tiles, magnesium oxide is generally adopted as the brick bottom slurry, magnesium hydroxide is easily produced through hydration reaction, magnesium sulfate crystals are easily formed by the substances and sulfides in flue gas in a kiln, and magnesia-alumina spinel and other co-melts are formed by the high Wen Ouyi and alumina at the bottom of a green brick and the surface layer of the green brick, and the co-melt is the 'stick nail' attached to the surface layer of the bottom of the green brick. The appearance of the rod nails is mainly concentrated in two areas of a temperature section (350-800 ℃) before the kiln and a temperature section between a high temperature section and a quenching section. The former, the adobe runs in the kiln front temperature section, because the firing temperature of the front temperature section is lower, the adobe has not liquid phase yet at this moment and has low strength, if the adobe is influenced by the rod nails at this moment, the adobe is easy to run unevenly and damage; in the latter, the green bricks are softened after passing through the high temperature area of the kiln, and if the stick nails are arranged on the stick at the moment, the flatness of the green bricks is influenced to generate local deformation, thereby influencing the deformation degree of the product. Therefore, how to avoid the appearance of the rod nails is also a difficult problem in the ceramic industry.
Disclosure of Invention
The invention aims to provide a preparation method of a low-water-absorption ceramic tile for enhancing the bonding strength of the ceramic tile, which is characterized in that an isolation covering glaze layer for enhancing the bonding strength of the ceramic tile is additionally arranged at the bottom of a green body layer, so that the bonding strength of the ceramic tile during paving can be enhanced, a certain isolation effect can be achieved, the ceramic tile can be used for partially replacing the existing tile bottom paste, the appearance of rod nails in the firing process is avoided, the bonding strength of the ceramic tile is further enhanced, and meanwhile, the paving efficiency of the ceramic tile is improved.
Another object of the present invention is to provide a low water absorption ceramic tile with enhanced bonding strength, wherein an isolation covering glaze layer for enhancing bonding strength of ceramic tile is added at the bottom of the green body layer, which can effectively reduce empty drum and falling phenomena formed during the paving and using processes of the existing low water absorption ceramic tile, so as to overcome the defects in the prior art; meanwhile, the isolation covering glaze layer also has excellent covering power and whiteness.
To achieve the purpose, the invention adopts the following technical scheme:
the preparation method of the low water absorption ceramic tile for enhancing the bonding strength of the ceramic tile comprises the following steps:
A. preparing a green brick with the water absorption rate less than 0.1%, and drying to obtain a green brick layer;
B. coating an isolation covering glaze on the bottom of the green body layer, and drying to obtain an isolation covering glaze layer; wherein the raw materials of the isolation covering glaze comprise kaolin, calcium magnesium sodium frit, corundum powder and titanium pigment, and the chemical components of the isolation covering glaze comprise SiO according to mass percent 2 35～40%、Al 2 O 3 40～45%、Fe 2 O 3 0.1～0.3%、TiO 2 6～10%、CaO 1.3～2.3%、MgO 2～3%、K 2 O 0.1～0.4%、Na 2 3.5 to 4 percent of O and 0.5 to 2 percent of loss on ignition;
C. rolling the bottom of the isolation covering glaze layer with tile primer, and firing in a kiln to obtain the low-water-absorption ceramic tile with enhanced bonding strength; wherein the raw materials of the brick bottom slurry comprise magnesium oxide, and the specific gravity of the brick bottom slurry is 1.04-1.1.
Preferably, in the step B, the specific gravity of the isolation covering glaze is 1.05-1.15, and the glazing amount is 50-90 g/square meter.
Preferably, in the step B, the bottom of the green body layer is placed downward, and the insulating cover glaze is sprayed.
Preferably, in the step B, the raw material of the insulating cover glaze further includes cobalt blue.
Preferably, in the step B, the D70 particle size of the corundum powder is 400-800 nm.
Preferably, in the step B, according to the mass percentage, the Al in the kaolin 2 O 3 The content is more than or equal to 33 percent.
Preferably, in the step B, the total content of CaO and MgO in the isolation covering glaze is 4-4.5% according to the mass percentage.
Preferably, in the step B, the raw materials of the isolation covering glaze comprise 4-6 parts by weight of kaolin, 45-65 parts by weight of calcium magnesium sodium frit, 27-40 parts by weight of corundum powder, 6-10 parts by weight of titanium pigment and 0.05-0.1 part by weight of cobalt blue.
Preferably, in the step B, the bottom of the green body layer is sprayed with isolation covering glaze by using a spray gun; wherein the aperture of the spray gun is 0.5mm, the distance between the spray gun and the bottom of the green body layer is 15cm, and the pressure of the spray gun is 0.3MPa.
The low water absorption ceramic tile with enhanced ceramic tile bonding strength is prepared by the preparation method, and comprises a green body layer and an isolation covering glaze layer, wherein the isolation covering glaze layer is positioned at the bottom of the green body layer, the glossiness of the isolation covering glaze layer is at least 3 degrees, and the whiteness is at least 18 degrees.
The technical scheme provided by the embodiment of the application can comprise the following beneficial effects:
1. the bottom of the green body layer is additionally provided with the isolation covering glaze layer, the formula structure of the isolation covering glaze layer is optimized, and the sintering degree of the isolation covering glaze layer is controlled in a proper range, so that the purpose of enhancing the bonding strength in the paving and using processes is achieved.
2. The formula system of the isolation covering glaze is designed into a high-alumina and high-fluxing system, which is beneficial to the proper sintering degree of the burned isolation covering glaze layer, so that the isolation covering glaze layer can be well bonded with a conventional low-water-absorption green body layer before and after the burning, and can also play a role in isolating the stick and the green body layer in the burning process.
3. The formula structure of the isolation covering glaze layer is optimized, and the isolation covering glaze layer has proper sintering degree, so that the bonding strength of the ceramic tile during paving can be enhanced, and a certain isolation effect can be achieved. Therefore, in the production process of the low-water-absorption ceramic tile, the isolation covering glaze layer can be additionally arranged to partially replace the existing magnesia brick base slurry, so that the appearance of rod nails in the firing process is avoided, the bonding strength of the ceramic tile is further enhanced, and meanwhile, the paving efficiency of the ceramic tile is improved.
4. The formula system of the isolation covering glaze is further optimized and designed into a high-aluminum, high-titanium and high-fluxing system, and scattering substances with larger refractive indexes are generated on the glaze layer, so that the covering power and whiteness of the isolation covering glaze layer are improved, the overall performance of the ceramic tile is improved, the service performance and functions of the ceramic tile are ensured to be consistent, and the use requirements of customers are met.
Detailed Description
The preparation method of the low water absorption ceramic tile for enhancing the bonding strength of the ceramic tile comprises the following steps:
A. preparing a green brick with the water absorption rate less than 0.1%, and drying to obtain a green brick layer;
B. coating an isolation covering glaze on the bottom of the green body layer, and drying to obtain an isolation covering glaze layer; wherein the raw materials of the isolation covering glaze comprise kaolin, calcium magnesium sodium frit, corundum powder and titanium pigment, and the chemical components of the isolation covering glaze comprise SiO according to mass percent 2 35～40%、Al 2 O 3 40～45%、Fe 2 O 3 0.1～0.3%、TiO 2 6～10%、CaO 1.3～2.3%、MgO 2～3%、K 2 O 0.1～0.4%、Na 2 3.5 to 4 percent of O and 0.5 to 2 percent of loss on ignition;
C. rolling the bottom of the isolation covering glaze layer with tile primer, and firing in a kiln to obtain the low-water-absorption ceramic tile with enhanced bonding strength; wherein the raw materials of the brick bottom slurry comprise magnesium oxide, and the specific gravity of the brick bottom slurry is 1.04-1.1.
In order to effectively reduce hollowness and falling phenomena formed in the paving and using processes of the existing low-water-absorption ceramic tile, the scheme provides a preparation method of the low-water-absorption ceramic tile for enhancing the bonding strength of the ceramic tile.
In general, the degree of sintering of the fired glaze increases with increasing alumina content in the formulation and decreases with increasing co-solvent content in the formulation. The formula system of the isolation covering glaze is designed into a high-aluminum and high-fluxing (calcium, magnesium, potassium and sodium) system, which is beneficial to the proper sintering degree of the baked isolation covering glaze layer, so that the isolation covering glaze layer can be well bonded with a conventional low-water-absorption green body layer before and after firing, and can also play an isolation role of isolating a stick from the green body layer in the firing process. If the sintering degree of the isolation covering glaze layer is too high, the isolation covering glaze layer is difficult to sinter with the blank layer to form a compact ceramic tile structure; if the sintering degree of the isolation covering glaze layer is too low, the isolation of the stick from the ceramic tile is not facilitated.
In order to avoid the occurrence of the stick nails, the usage amount or specific gravity of magnesia brick bottom slurry is generally reduced as much as possible in the prior art, but if the effective components of the brick bottom slurry are reduced, the stick and the brick blank are difficult to be isolated. In addition, since the conventional specific gravity of the tile base slurry is large and it is difficult to sinter, the tile product leaves residues at the bottom thereof which are unevenly distributed and have low bonding property with the tile after firing. When paving the subsides to the ceramic tile, above-mentioned residue can further reduce the bonding strength between ceramic tile and the cement paste the layer, increases the risk that the ceramic tile drops, consequently in actual paving process, fitment construction unit generally can manually clear up the brick end thick liquid residue earlier and then pave the subsides to the ceramic tile, waste time and energy, is unfavorable for the promotion of paving efficiency.
The formula structure of the isolation covering glaze layer is optimized, the proper sintering degree is achieved, the bonding strength of the ceramic tile in paving can be enhanced, and a certain isolation effect can be achieved. Therefore, in the production process of the low-water-absorption ceramic tile, the isolation covering glaze layer can be additionally arranged to partially replace the existing magnesia brick base slurry, so that the appearance of rod nails in the firing process is avoided, the bonding strength of the ceramic tile is further enhanced, and meanwhile, the paving efficiency of the ceramic tile is improved. It should be noted that the specific gravity of the brick bottom slurry in the prior art is generally 1.15-1.25, and in the preparation method of the scheme, the appearance of the stick nail can be effectively avoided by reducing the specific gravity of the brick bottom slurry on the premise of ensuring the isolation effect between the stick and the ceramic tile due to the addition of the isolation covering glaze layer.
Further, the color and whiteness of the edge part of the semi-finished product (namely, the freshly-discharged non-edging product) of the ceramic tile blank body after being fired at high temperature are basically consistent with those of the bottom; the finished product after edging has lighter color and higher whiteness at the edge, and has larger color and whiteness difference with the bottom. The edge and the bottom of the semi-finished product are directly heated in the firing process, so that the sintering degree is basically consistent, and the color development and whiteness of the green body are basically similar; the semi-finished product is subjected to edging (edging quantity is about 15 mm), the heat received by the edging position in the firing process is relatively less, the sintering degree of the edging position is lower than that of the bottom, therefore, the situation that the edging whiteness is higher than that of the bottom is caused, the overall performance of the ceramic tile product is not good enough, the overall performance can be shown on the usability and the function of the ceramic tile product to a certain extent, the same ceramic tile product is different in usability and function, and the use requirements of customers are not met.
Therefore, in order to improve the covering power of the glaze layer, the formula system of the isolation covering glaze is further optimized and designed into a high-aluminum, high-titanium and high-fluxing (calcium, magnesium, potassium and sodium) system, and scattering substances with larger refractive indexes are generated on the glaze layer so as to improve the covering effect. Specifically, after firing the raw materials of the insulating cover glaze layer, the calcium magnesium sodium frit provides Mg 2+ And Ca 2+ Will be provided with Al from kaolin and corundum powder 3+ And forming magnesia-alumina spinel (MgO.Al) 2 O 3 ) And diopside (CaO. MgO. 2 SiO) having a refractive index of 1.68 2 ) The method comprises the steps of carrying out a first treatment on the surface of the At the same time, in the raw materialsThe metakaolin of (2) sequentially forms metakaolin (Al 2 O 3 ·2SiO 2 ) And silicon-aluminum spinel (2 Al 2 O 3 ·3SiO 2 ) And finally form mullite (3 AlO) with refractive index of 1.64 3 ·2SiO 2 ) The method comprises the steps of carrying out a first treatment on the surface of the In addition, the calcium magnesium sodium frit itself may crystallize small amounts of acicular mullite. Further, the corundum powder is introduced into the raw materials, so that the eutectic glass body of the whole formula tends to precipitate a small amount of corundum (alpha-Al) with a refractive index of 1.76 under the condition that the aluminum content of the formula system is higher 2 O 3 ). Furthermore, the scheme introduces titanium dioxide into the raw materials, not only can effectively improve the whiteness of the glaze layer, but also can generate rutile (TiO) with the refractive index of 2.75 after high-temperature sintering 2 ) And anatase (TiO) having a refractive index of 2.53 2 ) And the crystals with higher covering power are beneficial to improving the covering power and whiteness of the isolation covering glaze layer simultaneously so as to improve the overall body property of the ceramic tile, ensure the consistent service performance and function of the ceramic tile and meet the service requirements of customers.
Preferably, the chemical components of the calcium magnesium sodium frit comprise SiO according to mass percent 2 65.38%、Al 2 O 3 16.64%、Fe 2 O 3 0.31%、TiO 2 0.17%、CaO 3.28%、MgO 4.64%、K 2 O 0.29%、Na 2 O6.69% and loss on ignition 1.01%.
Further more, in the step B, the specific gravity of the isolation covering glaze is 1.05-1.15, and the glazing amount is 50-90 g/square meter.
The insulating covering layer has higher covering power through the optimization of the formula structure, so that the specific gravity and glazing quantity of the insulating covering glaze can be reduced on the premise of ensuring the covering effect of the glaze layer, and ceramic products with different thickness ranges, such as ceramic rock plates with thinner thickness, are convenient to use.
In the step B, the bottom of the green body layer is placed downwards, and the insulating cover glaze is sprayed.
In a preferred embodiment of the present disclosure, in step B, the glaze is applied by spraying the insulating cover glaze upward in a manner that the green body layer is placed right above (i.e., the top of the green body layer is placed upward and the bottom is placed downward). Because the spraying process is continuously carried out, the glaze sprayed upwards possibly falls on the top of the green body layer, if the specific gravity of the sprayed glaze is too high, the moisture of the glaze drops falling on the surface of the green body layer is reduced after the glaze drops are heated by a hot blank, the dry material quantity of the glaze drops remained on the surface of the green body layer is larger, the dry material possibly forms tiny hard blocks on the top of the green body layer after being fired at high temperature, the combination of the dry material and the conventional overglaze is affected, and miliaria is finally formed on the glaze surface.
The isolation covering glaze optimized by the formula system has higher covering power, so that the spraying mode can be adopted for glazing under the condition of reducing the specific gravity of the isolation covering glaze, on one hand, the risk of miliaria on the glaze surface of the low-water-absorption ceramic tile for enhancing the bonding strength of the ceramic tile is favorably reduced, and on the other hand, compared with the glazing modes such as spray coating, roller coating and the like, the spraying glazing mode can prevent excessive moisture from being introduced into a green body layer in the glazing process as much as possible, thereby leading to the reduction of the mechanical property of the green body.
Further more, in the step B, the raw material of the insulating cover glaze further includes cobalt blue.
Specifically, the raw materials of the isolation covering glaze further comprise cobalt blue, and the cobalt blue is added into the raw materials of the glaze layer as a pigment, so that the phenomenon that the ground color of the green body layer is reddish and darker due to the fact that the raw materials with lower cost are used can be effectively neutralized, and the covering of the ground color of the green body layer is facilitated on the premise of controlling the cost.
Further, in the step B, the D70 particle size of the corundum powder is 400-800 nm.
In addition, in order to further improve the covering power of the isolation covering glaze layer, the scheme also optimizes the particle size of corundum powder used in raw materials, so that the corundum powder content with the particle size of 400-800 nm accounts for more than 70% of the total content, thereby maximizing the Mie scattering phenomenon of the isolation covering glaze layer and achieving the purpose of improving the covering effect.
Specifically, alumina in the formulation system is prepared by corundum (alpha-Al 2 O 3 ) Morphology introduction, during high temperature firing, a portion of Al 2 O 3 Takes part in the reaction and takes part in the construction of silicate glass network body to form aluminum-containing glass body, and simultaneously, crystallization is carried out at a certain temperature to generate crystals with high refractive index; another part of Al 2 O 3 Does not participate in the reaction, and remains in solid solution. The maximum scattering effect on visible light is achieved by controlling the particle size range of the alumina, so that the phenomenon that light directly penetrates through small particles to generate diffraction is prevented, and the covering effect is poor; at the same time, the particles are prevented from being too large, so that the alumina has poor dispersibility in the glaze and the non-Mie scattering phenomenon is generated.
Further described, in step B, the kaolin comprises Al in terms of mass percent 2 O 3 The content is more than or equal to 33 percent.
The kaolin belongs to a chemical material, the main mineral of the material is kaolin, and the whiteness and the aluminum content of the material are extremely high after iron removal and purification, and the material is generally used for adjusting and using a glaze formula to play a plasticizing role. In a preferred embodiment of the present scheme, al is selected 2 O 3 The kaolin with the content more than or equal to 33 percent is used as the raw material of the glaze material, which is more favorable for the isolation and covering glaze layer to generate mullite (3 AlO) with the refractive index of 1.64 3 ·2SiO 2 ) A target crystal with equal-height covering power.
Further more, in the step B, the total content of CaO and MgO in the isolation covering glaze is 4-4.5% according to the mass percentage.
Because the flux content in the formula system has a larger influence on the formation of the sintering degree range of the glaze layer, the total content of CaO and MgO in the insulating cover glaze is preferably 4-4.5% in order to ensure that the sintering degree of the glaze layer better meets the requirements of improving the bonding strength and insulating effect.
In the step B, the raw materials of the isolation covering glaze comprise 4-6 parts by weight of kaolin, 45-65 parts by weight of calcium magnesium sodium frit, 27-40 parts by weight of corundum powder, 6-10 parts by weight of titanium dioxide and 0.05-0.1 part by weight of cobalt blue.
In one embodiment of the technical scheme, the addition amount of each raw material in the isolation covering glaze layer is optimized, so that the generation and conversion of target crystals are facilitated.
In the step B, the bottom of the green body layer is sprayed with isolation covering glaze by using a spray gun; wherein the aperture of the spray gun is 0.5mm, the distance between the spray gun and the bottom of the green body layer is 15cm, and the pressure of the spray gun is 0.3MPa.
The scheme is also preferable to the aperture, the distance and the pressure of the spray gun for spraying the isolation covering glaze, is favorable for forming a uniform isolation covering glaze layer at the bottom of the green body layer, and further ensures the overall body property of the ceramic tile.
The low water absorption ceramic tile with enhanced ceramic tile bonding strength is prepared by the preparation method, and comprises a green body layer and an isolation covering glaze layer, wherein the isolation covering glaze layer is positioned at the bottom of the green body layer, the glossiness of the isolation covering glaze layer is at least 3 degrees, and the whiteness is at least 18 degrees.
The scheme also provides the low-water-absorption ceramic tile with the enhanced ceramic tile bonding strength, which is prepared by the preparation method, and the bottom of the green body layer is additionally provided with the isolation covering glaze layer for enhancing the ceramic tile paving bonding strength, so that the phenomena of hollowness and falling-off formed in the paving and using processes of the existing low-water-absorption ceramic tile can be effectively reduced. In addition, the sintering degree of the isolation covering glaze layer formed by the scheme is characterized by glossiness, and the glossiness is at least 3 degrees; and the whiteness is at least 18 degrees, which can be comparable with the whiteness of the blank layer after edging, and the overall effect of the low-water-absorption ceramic tile is improved.
The technical scheme of the invention is further described by the following specific embodiments.
Example 1
A. Preparing a green brick with the water absorption rate less than 0.1%, and drying to obtain a green brick layer; the green body layer is prepared from conventional green body raw materials in the ceramic field, and comprises the following chemical components in percentage by mass 2 67.85%、Al 2 O 3 17.23%、Fe 2 O 3 1.42%、TiO 2 0.23%、CaO 1.18%、MgO 1.65%、K 2 O 1.85%、Na 2 O2.05% and loss on ignition 4.3%.
B. The bottom of the green body layer is placed downwards, isolation covering glaze with the specific gravity of 1.10 and the glazing quantity of 70 g/square meter is sprayed on the bottom of the green body layer, and the isolation covering glaze layer is obtained after drying;
wherein, the raw materials of the isolation covering glaze comprise Al 2 O 3 Kaolin with content more than or equal to 33%, calcium magnesium sodium frit, corundum powder with D70 particle size of 400-800 nm, titanium pigment and cobalt blue; according to mass percent, the chemical components of the isolation covering glaze comprise SiO 2 35.03%、Al 2 O 3 43.23%、Fe 2 O 3 0.3%、TiO 2 9.87%、CaO 2.26%、MgO 2.96%、K 2 O 0.37%、Na 2 O3.9% and loss on ignition 0.6%; according to mass percentage, the chemical components of the calcium magnesium sodium frit comprise SiO 2 65.38%、Al 2 O 3 16.64%、Fe 2 O 3 0.31%、TiO 2 0.17%、CaO 3.28%、MgO 4.64%、K 2 O 0.29%、Na 2 O6.69% and loss on ignition 1.01%.
C. And (3) rolling magnesia brick base slurry with specific gravity of 1.07 at the bottom of the isolation covering glaze layer, and firing in a kiln to obtain the low-water-absorption ceramic tile with enhanced ceramic tile bonding strength.
Example 2
A. Preparing a green brick with the water absorption rate less than 0.1%, and drying to obtain a green brick layer; the green body layer is prepared from conventional green body raw materials in the ceramic field, and comprises the following chemical components in percentage by mass 2 67.85%、Al 2 O 3 17.23%、Fe 2 O 3 1.42%、TiO 2 0.23%、CaO 1.18%、MgO 1.65%、K 2 O 1.85%、Na 2 O2.05% and loss on ignition 4.3%.
B. The bottom of the green body layer is placed downwards, isolation covering glaze with the specific gravity of 1.05 and the glazing amount of 90 g/square meter is sprayed on the bottom of the green body layer, and the isolation covering glaze layer is obtained after drying;
wherein, the raw materials of the isolation covering glaze comprise Al 2 O 3 Kaolin with content more than or equal to 33%, calcium magnesium sodium frit, corundum powder with D70 particle size of 400-800 nm, titanium pigment and cobalt blue; according to mass percent, the chemical components of the isolation covering glaze comprise SiO 2 38.37%、Al 2 O 3 42.33%、Fe 2 O 3 0.2%、TiO 2 8.03%、CaO 1.81%、MgO 2.56%、K 2 O 0.18%、Na 2 O3.7% and loss on ignition 1.2%; according to mass percentage, the chemical components of the calcium magnesium sodium frit comprise SiO 2 65.38%、Al 2 O 3 16.64%、Fe 2 O 3 0.31%、TiO 2 0.17%、CaO 3.28%、MgO 4.64%、K 2 O 0.29%、Na 2 O6.69% and loss on ignition 1.01%.
C. And (3) rolling magnesia brick base slurry with specific gravity of 1.04 at the bottom of the isolation covering glaze layer, and firing in a kiln to obtain the low-water-absorption ceramic tile with enhanced ceramic tile bonding strength.
Example 3
A. Preparing a green brick with the water absorption rate less than 0.1%, and drying to obtain a green brick layer; the green body layer is prepared from conventional green body raw materials in the ceramic field, and comprises the following chemical components in percentage by mass 2 67.85%、Al 2 O 3 17.23%、Fe 2 O 3 1.42%、TiO 2 0.23%、CaO 1.18%、MgO 1.65%、K 2 O 1.85%、Na 2 O2.05% and loss on ignition 4.3%.
B. The bottom of the green body layer is placed downwards, isolation covering glaze with the specific gravity of 1.15 and the glazing quantity of 50 g/square meter is sprayed on the bottom of the green body layer, and the isolation covering glaze layer is obtained after drying;
wherein, the raw materials of the isolation covering glaze comprise Al 2 O 3 Kaolin with content more than or equal to 33%, calcium magnesium sodium frit, corundum powder with D70 particle size of 400-800 nm, titanium pigment and cobalt blue; according to mass percent, the chemical components of the isolation covering glaze comprise SiO 2 39.88%、Al 2 O 3 41.02%、Fe 2 O 3 0.1%、TiO 2 7.95%、CaO 1.32%、MgO 2.06%、K 2 O 0.26%、Na 2 O3.5% and loss on ignition 2%; according to mass percentage, the chemical components of the calcium magnesium sodium frit comprise SiO 2 65.38%、Al 2 O 3 16.64%、Fe 2 O 3 0.31%、TiO 2 0.17%、CaO 3.28%、MgO 4.64%、K 2 O 0.29%、Na 2 O 669% and loss on ignition of 1.01%.
C. And (3) rolling magnesia brick base slurry with specific gravity of 1.1 at the bottom of the isolation covering glaze layer, and firing in a kiln to obtain the low-water-absorption ceramic tile with enhanced ceramic tile bonding strength.
Comparative example
The ceramic tile with low water absorption comprises a blank layer, wherein the blank layer is prepared from conventional blank raw materials in the ceramic field, the water absorption is less than 0.1%, and the chemical components of the blank layer comprise SiO (silicon dioxide) according to the mass percentage 2 67.85%、Al 2 O 3 17.23%、Fe 2 O 3 1.42%、TiO 2 0.23%、CaO 1.18%、MgO 1.65%、K 2 O 1.85%、Na 2 O2.05% and loss on ignition 4.3%.
And rolling magnesia brick base slurry with specific gravity of 1.15 at the bottom of the green body layer, and firing in a kiln to obtain the low-water-absorption ceramic tile.
The low water absorption tiles prepared in examples 1 to 3 were subjected to a gloss test and a whiteness test, which are conventional in the technical field of architectural ceramics, respectively, while the low water absorption tiles prepared in examples 1 to 3 and the low water absorption tiles of comparative examples were subjected to a bonding strength test and a mechanical property test, and the results are shown in table 1 below:
table 1 results of low water absorption tile performance tests for examples 1-3 and comparative examples
Wherein, bond strength test: the prepared low water absorption ceramic tile was cut into 75mm x 75mm test pieces for use according to standard sand: 325 cement: water = 3:2:1 formulation mortar was prepared and applied to the bottom of the test block and tested for 28 day pullout strength.
As can be seen from the performance test results in Table 1, the glossiness of the insulating cover glaze layer obtained by the formula structure in the scheme is between 3 and 4 degrees; the whiteness of the glaze can reach at least 85 degrees after being fired, and the whiteness of the glaze can be comparable with that of a blank layer after edging after being applied to the bottom of the blank layer, so that the overall effect of the ceramic tile with low water absorption rate is ensured, and the ceramic tile has higher breaking modulus. Meanwhile, the paving effect of the low-water-absorption ceramic tile with the isolation covering glaze layer is tested, the 28-day drawing strength of the tile can reach 1.061MPa, and the bonding performance is excellent.
The technical principle of the present invention is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the invention and should not be taken in any way as limiting the scope of the invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (9)
1. The preparation method of the low-water-absorption ceramic tile for enhancing the bonding strength of the ceramic tile is characterized by comprising the following steps of:
A. preparing a green brick with the water absorption rate less than 0.1%, and drying to obtain a green brick layer;
B. coating an isolation covering glaze on the bottom of the green body layer, and drying to obtain an isolation covering glaze layer; wherein the raw materials of the isolation covering glaze comprise kaolin, calcium magnesium sodium frit, corundum powder, titanium pigment and cobalt blue, and the chemical components of the isolation covering glaze comprise SiO according to mass percent 2 35～40%、Al 2 O 3 40～45%、Fe 2 O 3 0.1～0.3%、TiO 2 6～10%、CaO 1.3～2.3%、MgO 2～3%、K 2 O 0.1～0.4%、Na 2 3.5 to 4 percent of O and 0.5 to 2 percent of loss on ignition;
C. rolling the bottom of the isolation covering glaze layer with tile primer, and firing in a kiln to obtain the low-water-absorption ceramic tile with enhanced bonding strength; wherein the raw materials of the brick bottom slurry comprise magnesium oxide, and the specific gravity of the brick bottom slurry is 1.04-1.1.
2. The method for producing a low water absorption ceramic tile having enhanced adhesion strength according to claim 1, wherein in the step B, the specific gravity of the insulating cover glaze is 1.05 to 1.15, and the glazing amount is 50 to 90 g/square meter.
3. The method for preparing a low water absorption ceramic tile with enhanced bonding strength according to claim 2, wherein in the step B, the bottom of the green body layer is placed downward, and the insulating covering glaze is sprayed.
4. The method for producing a low water absorption ceramic tile having enhanced adhesion strength to ceramic tile according to claim 1, wherein in the step B, the D70 particle size of the corundum powder is 400 to 800nm.
5. The method for preparing a low water absorption ceramic tile with enhanced bonding strength according to claim 1, wherein in the step B, according to mass percent, the Al in the kaolin is as follows 2 O 3 The content is more than or equal to 33 percent.
6. The method for preparing a low water absorption ceramic tile with enhanced bonding strength according to claim 1, wherein in the step B, the total content of CaO and MgO in the insulating cover glaze is 4-4.5% by mass.
7. The method for preparing the low-water-absorption ceramic tile with the ceramic tile bonding strength enhanced according to claim 1, wherein in the step B, raw materials of the isolation covering glaze comprise, by mass, 4-6 parts of kaolin, 45-65 parts of calcium magnesium sodium frit, 27-40 parts of corundum powder, 6-10 parts of titanium pigment and 0.05-0.1 part of cobalt blue.
8. The method for producing a low water absorption ceramic tile with enhanced bonding strength of ceramic tile according to claim 1, wherein in step B, a barrier cover glaze is sprayed on the bottom of the green body layer by using a spray gun; wherein the aperture of the spray gun is 0.5mm, the distance between the spray gun and the bottom of the green body layer is 15cm, and the pressure of the spray gun is 0.3MPa.
9. A low water absorption ceramic tile with enhanced bonding strength, characterized in that the tile is prepared by the preparation method of any one of claims 1 to 8, and comprises a green body layer and a separation covering glaze layer, wherein the separation covering glaze layer is positioned at the bottom of the green body layer, the glossiness of the separation covering glaze layer is at least 3 degrees, and the whiteness is at least 18 degrees.
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| CN114853445A (en) * | 2022-05-06 | 2022-08-05 | 蒙娜丽莎集团股份有限公司 | Easy-to-bond green body for improving bonding strength of ceramic tile, ceramic tile comprising easy-to-bond green body and preparation method |
| CN115894088A (en) * | 2022-12-19 | 2023-04-04 | 佛山欧神诺陶瓷有限公司 | Preparation method of ceramic tile, ceramic tile and application of ceramic tile |
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| CN111777432A (en) * | 2020-07-08 | 2020-10-16 | 佛山市东鹏陶瓷有限公司 | Porcelain high-whiteness glazed tile and preparation method thereof |
| CN114853445A (en) * | 2022-05-06 | 2022-08-05 | 蒙娜丽莎集团股份有限公司 | Easy-to-bond green body for improving bonding strength of ceramic tile, ceramic tile comprising easy-to-bond green body and preparation method |
| CN115894088A (en) * | 2022-12-19 | 2023-04-04 | 佛山欧神诺陶瓷有限公司 | Preparation method of ceramic tile, ceramic tile and application of ceramic tile |
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