CN117285254B - Nano SiO2/TiO2Self-cleaning ceramic glaze and preparation method and application method thereof - Google Patents
Nano SiO2/TiO2Self-cleaning ceramic glaze and preparation method and application method thereof Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000004140 cleaning Methods 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims description 15
- 229910052681 coesite Inorganic materials 0.000 title claims description 5
- 229910052906 cristobalite Inorganic materials 0.000 title claims description 5
- 239000000377 silicon dioxide Substances 0.000 title claims description 5
- 229910052682 stishovite Inorganic materials 0.000 title claims description 5
- 229910052905 tridymite Inorganic materials 0.000 title claims description 5
- 235000012239 silicon dioxide Nutrition 0.000 title 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 62
- 238000000498 ball milling Methods 0.000 claims abstract description 30
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 28
- 229910052796 boron Inorganic materials 0.000 claims abstract description 28
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000007873 sieving Methods 0.000 claims abstract description 24
- 230000032683 aging Effects 0.000 claims abstract description 17
- 239000004927 clay Substances 0.000 claims abstract description 13
- 238000004321 preservation Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000005995 Aluminium silicate Substances 0.000 claims description 12
- 235000012211 aluminium silicate Nutrition 0.000 claims description 12
- 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 12
- 238000003483 aging Methods 0.000 claims description 10
- 238000009736 wetting Methods 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 abstract description 5
- 238000011065 in-situ storage Methods 0.000 abstract description 4
- 230000000844 anti-bacterial effect Effects 0.000 abstract 1
- 239000012071 phase Substances 0.000 description 19
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 6
- 229910010413 TiO 2 Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 230000003373 anti-fouling effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000005350 fused silica glass Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000011858 nanopowder Substances 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000005348 self-cleaning glass Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/14—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
- C03C8/20—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions containing titanium compounds; containing zirconium compounds
-
- 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
-
- 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
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5022—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with vitreous materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/86—Glazes; Cold glazes
-
- 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
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- Engineering & Computer Science (AREA)
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Abstract
The invention relates to a nano SiO 2/TiO2 self-cleaning ceramic glaze, a preparation method and an application method thereof, wherein the ceramic glaze comprises the following components in percentage by weight: 13.2 to 16.7 weight percent of clay, 83.3 to 86.8 weight percent of boron split-phase frit and 2 to 5 weight percent of added alumina, the glaze is obtained by the procedures of proportioning, ball milling, sieving and aging according to the ceramic glaze formula, the glaze is applied on the surface of a green body, dried and then placed in a kiln to be heated to 1190 to 1210 ℃ under the oxidizing atmosphere, then the kiln temperature is quenched to 720 to 760 ℃ through 30 to 60 min, and the nano SiO 2/TiO2 self-cleaning ceramic glaze is obtained after heat preservation is carried out for 30 to 60 min. The SiO 2/TiO2 super-hydrophilic self-cleaning ceramic glaze is prepared by a high-temperature in-situ one-step method, has better pollution resistance and antibacterial effect under visible light, and therefore has wider practical application prospect.
Description
Technical Field
The invention relates to the technical field of ceramics, in particular to a nano SiO 2/TiO2 self-cleaning ceramic glaze and a preparation method and an application method thereof.
Background
Energy conservation and efficient utilization are an important direction of scientific research. In 2001, pilkington, uk issued Pilkington Activ ™ self-cleaning glass. The glass surface contains a layer of TiO 2 film, and can be subjected to photocatalytic degradation on stains through TiO 2 nanocrystalline, and then the stains are washed and decontaminated. The products all realize the water-saving self-cleaning effect to a certain extent. However, the current nano TiO 2 self-cleaning glaze has the problems that nano particles are easy to erode by the glaze, the dispersibility is poor, or the surface TiO 2 or TiO 2/SiO2 coating is easy to be damaged to lose the self-cleaning effect, and the like. The coating of the super-hydrophilic self-cleaning glaze in the patent ZL202110859978.3 is complex in process and high in production cost. The preparation of the super-hydrophilic self-cleaning glaze in the patents ZL202010117271.0 and ZL202110709000.9 requires the introduction of metastable phase CaTi 2O5, and the cost is relatively high because fewer substances exist in the nature and are required to be synthesized artificially; although SiO 2/TiO2 is prepared in situ by using fused silica at high temperature, the SiO 2/TiO2 can be prepared by adding fused silica, and has complex process.
Disclosure of Invention
The invention aims to solve the technical problem of providing the nano SiO 2/TiO2 self-cleaning ceramic glaze with simple process, low cost and convenient use, and the preparation method and the application method thereof.
The technical scheme of the invention is as follows: a nano SiO 2/TiO2 self-cleaning ceramic glaze is characterized in that: the ceramic glaze comprises the following components in percentage by weight: 13.2 to 16.7 weight percent of clay, 83.3 to 86.8 weight percent of boron split-phase frit, and 2 to 5 weight percent of aluminum oxide.
The clay is one of Malaysia kaolin, guizhou kaolin and Dagao kaolin.
The chemical composition of the boron split-phase frit is as follows ：SiO2 53.52wt%、Al2O312.28wt、CaO 5.66wt%、MgO 0.40wt%、K2O 0.52wt%、Na2O 9.76wt%、TiO2 6.83wt%、ZnO 0.13wt%、B2O310.9 wt%.
The granularity of the boron split-phase frit is less than 300 mu m.
The preparation method of the ceramic glaze is characterized by comprising the following steps of: and (3) preparing materials according to a ceramic glaze formula, ball milling, sieving and ageing to obtain the glaze.
The ball milling process comprises the following steps of: alumina ball mill: water=1:1.8-2:0.8-1, adding into a ball milling tank, ball milling boron split-phase frit and alumina for 30-40 min, adding clay and ball milling for 10-20 min.
The sieving process is 250 mesh sieving, and the ageing process is 24-36 h.
The application method of the glaze obtained by the preparation method is characterized in that: the glaze is applied to the surface of a green body, dried and placed in a kiln to be heated to 1190-1210 ℃ under the oxidation atmosphere, then the kiln temperature is quenched to 720-760 ℃ by 30-60 min ℃, and the self-cleaning ceramic glaze of nano SiO 2/TiO2 is obtained after heat preservation of 30-60 min.
The roughness of the ceramic glaze surface is 20-30 nm, the wetting angle is 4.5-7.0 degrees, the whiteness of the glaze is 80-84 percent, and the hardness of the glaze is 826-1100 kgf/mm 2.
The ceramic glaze surface shows good oleophobic capacity under the action of water, and after being smeared by a Mark pen, the imprinting can be promoted to float only by dripping a small amount of water.
The invention has the following beneficial effects:
(1) The invention prepares the nano SiO 2/TiO2 self-cleaning ceramic glaze by a high-temperature in-situ one-step method, and solves the problems that the prior preparation method is complex and the dispersibility of the directly introduced nano powder is difficult. Compared with common building sanitary ceramic in the market, the nano SiO 2/TiO2 self-cleaning ceramic glaze is stronger in self-cleaning, easier to clean and sterilize, and has important significance for saving water and protecting environment.
(2) Compared with the common SiO 2/TiO2 super-hydrophilic ceramic glaze, the preparation process of the super-hydrophilic self-cleaning ceramic glaze is simple, the aluminum oxide octahedron occupies the position of the silicon oxide tetrahedron group by only controlling the formula composition such as Si/Al ratio and introducing the network forming agent alumina, so that the silicon oxide tetrahedron is prevented from rapidly migrating in a liquid phase group, thereby enabling the silicon oxide tetrahedron to have enough time for in-situ precipitation of SiO 2/TiO2 crystals, and the precipitated crystals are precipitated in the whole glaze layer, so that the durability of the ceramic glaze is further improved; in addition, the solar ray utilization efficiency is improved, so that the good super-hydrophilic and anti-fouling performances are easier to maintain, and the solar ray anti-fouling material has a wide prospect in practical application.
Drawings
FIG. 1 is an XRD diffraction pattern of example 1;
Fig. 2 is an AFM photograph of the atomic force microscope of example 1.
Description of the embodiments
In order to further describe the present invention, the technical means and effects adopted to achieve the predetermined object of the present invention, the following describes the present invention in detail with reference to the preferred embodiments:
The chemical composition of the boron split-phase frit is as follows ：SiO2 53.52wt%、Al2O312.28wt、CaO 5.66wt%、MgO 0.40wt%、K2O 0.52wt%、Na2O 9.76wt%、TiO2 6.83wt%、ZnO 0.13wt%、B2O310.9 wt%.
Example 1
A nano SiO 2/TiO2 self-cleaning ceramic glaze comprises the following components in percentage by weight: 14.3wt% of malaysia kaolin, 85.7wt% of boron split-phase frit and 2wt% of aluminum oxide.
The granularity of the boron split-phase frit is less than 300 mu m.
The preparation method of the ceramic glaze comprises the steps of proportioning, ball milling, sieving and ageing according to the formula of the ceramic glaze to obtain the glaze.
The ball milling process comprises the following steps of: alumina ball mill: water = 1:1.8:1 was added to a ball milling pot and the boron split frit and alumina were ball milled for 30 min a and then clay was added for 20min.
The sieving process is 250 mesh sieving, and the aging process is 24 hours.
The application method of the glaze obtained by the preparation method is characterized in that: the glaze is applied to the surface of a green body, dried and placed in a kiln, the kiln temperature is raised to 1190 ℃ in an oxidizing atmosphere, then the kiln temperature is quenched to 720 ℃ for 30min, and the self-cleaning ceramic glaze of nano SiO 2/TiO2 is obtained after heat preservation for 60 min.
The roughness of the ceramic glaze surface is 20nm, the wetting angle is 4.5 degrees, the glaze whiteness is 80 percent, and the glaze hardness is 826 kgf/mm 2.
The ceramic glaze surface shows good oleophobic capacity under the action of water, and after being smeared by a Mark pen, the imprinting can be promoted to float only by dripping a small amount of water.
Example 2
A nano SiO 2/TiO2 self-cleaning ceramic glaze comprises the following components in percentage by weight: 15wt% of Guizhou kaolin, 85wt% of boron split-phase frit and 3wt% of aluminum oxide.
The granularity of the boron split-phase frit is less than 300 mu m.
The preparation method of the ceramic glaze comprises the steps of proportioning, ball milling, sieving and ageing according to the formula of the ceramic glaze to obtain the glaze.
The ball milling process comprises the following steps of: alumina ball mill: water = 1:2:1 into a ball milling tank, and boron split-phase frit and alumina were ball milled for 40 min a and then clay was added for 15min.
The sieving process is 250 mesh sieving, and the aging process is 36 hours.
The application method of the glaze obtained by the preparation method is characterized in that: the glaze is applied to the surface of a green body, dried and placed in a kiln to be heated to 1200 ℃ in an oxidizing atmosphere, then the kiln temperature is quenched to 730 ℃ for 60min, and the self-cleaning ceramic glaze of the nano SiO 2/TiO2 is obtained after heat preservation for 30 min.
The roughness of the ceramic glaze surface is 23nm, the wetting angle is 4.8 degrees, the whiteness of the glaze is 81 percent, and the hardness of the glaze is 945 kgf/mm 2.
The ceramic glaze surface shows good oleophobic capacity under the action of water, and after being smeared by a Mark pen, the imprinting can be promoted to float only by dripping a small amount of water.
Example 3
A nano SiO 2/TiO2 self-cleaning ceramic glaze comprises the following components in percentage by weight: 15.6wt% of large kaolin, 84.4wt% of boron split-phase frit and 4wt% of additional alumina.
The granularity of the boron split-phase frit is less than 300 mu m.
The preparation method of the ceramic glaze comprises the steps of proportioning, ball milling, sieving and ageing according to the formula of the ceramic glaze to obtain the glaze.
The ball milling process comprises the following steps of: alumina ball mill: water = 1:2:0.8 was added to a ball milling tank and the boron split frit and alumina were ball milled for 40 min minutes and then clay was added for 20 minutes.
The sieving process is to pass through a 250-mesh sieve, and the time of the aging process is 28 hours.
The application method of the glaze obtained by the preparation method is characterized in that: the glaze is applied to the surface of a green body, dried and placed in a kiln to be heated to 1210 ℃ under the oxidation atmosphere, then the kiln temperature is quenched to 740 ℃ after 60min, and the self-cleaning ceramic glaze of nano SiO 2/TiO2 is obtained after heat preservation of 45 min.
The roughness of the ceramic glaze surface is 21nm, the wetting angle is 5.0 degrees, the glaze whiteness is 82 percent, and the glaze hardness is 1100 kgf/mm 2.
The ceramic glaze surface shows good oleophobic capacity under the action of water, and after being smeared by a Mark pen, the imprinting can be promoted to float only by dripping a small amount of water.
Example 4
A nano SiO 2/TiO2 self-cleaning ceramic glaze comprises the following components in percentage by weight: 13.2wt% of large kaolin, 86.8wt% of boron split-phase frit and 5wt% of additional alumina.
The granularity of the boron split-phase frit is less than 300 mu m.
The preparation method of the ceramic glaze comprises the steps of proportioning, ball milling, sieving and ageing according to the formula of the ceramic glaze to obtain the glaze.
The ball milling process comprises the following steps of: alumina ball mill: water = 1:1.8:0.8 was added to a ball milling pot and the boron split frit and alumina were ball milled for 40 min minutes and then clay was added for 20 minutes.
The sieving process is 250 mesh sieving, and the aging process is 32 hours.
The application method of the glaze obtained by the preparation method is characterized in that: the glaze is applied to the surface of a green body, dried and placed in a kiln to be heated to 1210 ℃ under the oxidation atmosphere, then the kiln temperature is quenched to 750 ℃ after 45min, and the self-cleaning ceramic glaze of nano SiO 2/TiO2 is obtained after heat preservation of 60 min.
The roughness of the ceramic glaze surface is 22nm, the wetting angle is 5.1 degrees, the glaze whiteness is 83 percent, and the glaze hardness is 1100 kgf/mm 2.
The ceramic glaze surface shows good oleophobic capacity under the action of water, and after being smeared by a Mark pen, the imprinting can be promoted to float only by dripping a small amount of water.
Example 5
A nano SiO 2/TiO2 self-cleaning ceramic glaze comprises the following components in percentage by weight: 14.6wt% of Guizhou kaolin, 85.4wt% of boron split-phase frit and 4wt% of aluminum oxide.
The granularity of the boron split-phase frit is less than 300 mu m.
The preparation method of the ceramic glaze comprises the steps of proportioning, ball milling, sieving and ageing according to the formula of the ceramic glaze to obtain the glaze.
The ball milling process comprises the following steps of: alumina ball mill: water = 1:2:0.8 was added to a ball milling tank and boron split frit and alumina were ball milled for 35 min a and then clay was added for 15min.
The sieving process is 250 mesh sieving, and the aging process is 36 hours.
The application method of the glaze obtained by the preparation method is characterized in that: the glaze is applied to the surface of a green body, dried and placed in a kiln, the kiln temperature is raised to 1190 ℃ in an oxidizing atmosphere, then the kiln temperature is quenched to 760 ℃ in 30min, and the self-cleaning ceramic glaze of nano SiO 2/TiO2 is obtained after heat preservation of 45 min.
The roughness of the ceramic glaze surface is 25nm, the wetting angle is 6.0 degrees, the glaze whiteness is 84 percent, and the glaze hardness is 934 kgf/mm 2.
The ceramic glaze surface shows good oleophobic capacity under the action of water, and after being smeared by a Mark pen, the imprinting can be promoted to float only by dripping a small amount of water.
Example 6
A nano SiO 2/TiO2 self-cleaning ceramic glaze comprises the following components in percentage by weight: 15.9wt% of Guizhou kaolin, 84.1wt% of boron split-phase frit and 2wt% of aluminum oxide.
The granularity of the boron split-phase frit is less than 300 mu m.
The preparation method of the ceramic glaze comprises the steps of proportioning, ball milling, sieving and ageing according to the formula of the ceramic glaze to obtain the glaze.
The ball milling process comprises the following steps of: alumina ball mill: water = 1:2:0.85 was added to a ball milling tank and boron split frit and alumina were ball milled for 30 min a and then clay was added for 10min.
The sieving process is 250 mesh sieving, and the aging process is 24 hours.
The application method of the glaze obtained by the preparation method is characterized in that: the glaze is applied to the surface of a green body, dried and placed in a kiln, the kiln temperature is raised to 1190 ℃ in an oxidizing atmosphere, then the kiln temperature is quenched to 730 ℃ in 60 minutes, and the self-cleaning ceramic glaze of nano SiO 2/TiO2 is obtained after heat preservation for 30 min.
The roughness of the ceramic glaze surface is 30nm, the wetting angle is 6.5 degrees, the glaze whiteness is 82 percent, and the glaze hardness is 950 kgf/mm 2.
The ceramic glaze surface shows good oleophobic capacity under the action of water, and after being smeared by a Mark pen, the imprinting can be promoted to float only by dripping a small amount of water.
Claims (8)
1. A nano SiO 2/TiO2 self-cleaning ceramic glaze is characterized in that: the ceramic glaze comprises the following components in percentage by weight: 13.2 to 16.7 weight percent of clay, 83.3 to 86.8 weight percent of boron split-phase frit, and 2 to 5 weight percent of added alumina;
the boron split-phase frit comprises the following chemical components:
SiO2 53.52wt%、Al2O3 12.28wt、CaO 5.66wt%、MgO 0.40wt%、K2O 0.52wt%、Na2O 9.76wt%、TiO2 6.83wt%、ZnO 0.13wt%、B2O3 10.9 wt%;
the clay is one of Malaysia kaolin, guizhou kaolin and Dagao kaolin.
2. The ceramic glaze according to claim 1, wherein: the granularity of the boron split-phase frit is less than 300 mu m.
3. A method of making the ceramic glaze of claim 1, wherein: and (3) preparing materials according to a ceramic glaze formula, ball milling, sieving and ageing to obtain the glaze.
4. A method of preparation according to claim 3, characterized in that: the ball milling process comprises the following steps of: alumina ball mill: water=1:1.8-2:0.8-1, and adding into ball milling tank.
5. A method of preparation according to claim 3, characterized in that: the ball milling process comprises the steps of ball milling boron split-phase frit and alumina for 30-40 min min, adding clay and ball milling for 10-20 min.
6. A method of preparation according to claim 3, characterized in that: the sieving process is 250 mesh sieving, and the ageing process is 24-36 h.
7. A method of using the glaze obtained by the method of claim 3, characterized in that: the glaze is applied to the surface of a green body, dried and placed in a kiln to be heated to 1190-1210 ℃ under the oxidation atmosphere, then the kiln temperature is quenched to 720-760 ℃ by 30-60 min ℃, and the self-cleaning ceramic glaze of nano SiO 2/TiO2 is obtained after heat preservation of 30-60 min.
8. The application method according to claim 7, wherein: the roughness of the ceramic glaze surface is 20-30 nm, the wetting angle is 4.5-7.0 degrees, the whiteness of the glaze is 80-84 percent, and the hardness of the glaze is 826-1100 kgf/mm 2.
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| CN117285254B true CN117285254B (en) | 2024-07-19 |
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