CN112876227A - Preparation method of high-strength high-light-transmission antibacterial mildew-proof ceramic rock plate - Google Patents
Preparation method of high-strength high-light-transmission antibacterial mildew-proof ceramic rock plate Download PDFInfo
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- CN112876227A CN112876227A CN202110296100.3A CN202110296100A CN112876227A CN 112876227 A CN112876227 A CN 112876227A CN 202110296100 A CN202110296100 A CN 202110296100A CN 112876227 A CN112876227 A CN 112876227A
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- antibacterial
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- rock plate
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 42
- 239000011435 rock Substances 0.000 title claims abstract description 40
- 239000000919 ceramic Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 69
- 238000005498 polishing Methods 0.000 claims abstract description 66
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 29
- 239000002994 raw material Substances 0.000 claims abstract description 27
- 230000003373 anti-fouling effect Effects 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000010304 firing Methods 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000032683 aging Effects 0.000 claims abstract description 6
- 238000007873 sieving Methods 0.000 claims abstract description 6
- 238000001694 spray drying Methods 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 238000002834 transmittance Methods 0.000 claims description 21
- 238000000498 ball milling Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 34
- 239000004599 antimicrobial Substances 0.000 description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical group [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 8
- 239000011230 binding agent Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 229910052656 albite Inorganic materials 0.000 description 7
- 239000000454 talc Substances 0.000 description 7
- 229910052623 talc Inorganic materials 0.000 description 7
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 6
- 239000010427 ball clay Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 6
- 235000019353 potassium silicate Nutrition 0.000 description 6
- BSWGGJHLVUUXTL-UHFFFAOYSA-N silver zinc Chemical compound [Zn].[Ag] BSWGGJHLVUUXTL-UHFFFAOYSA-N 0.000 description 6
- 238000005245 sintering Methods 0.000 description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 6
- 229910052573 porcelain Inorganic materials 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 229910052593 corundum Inorganic materials 0.000 description 4
- 238000005034 decoration Methods 0.000 description 4
- 239000012467 final product Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 3
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 241000588724 Escherichia coli Species 0.000 description 2
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- -1 compound aluminum phosphate Chemical class 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001844 chromium Chemical class 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 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 1
- 238000007688 edging Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000012856 weighed raw material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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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
- 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
- C04B35/16—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 silicates other than clay
- C04B35/18—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 silicates other than clay rich in aluminium oxide
- C04B35/19—Alkali metal aluminosilicates, e.g. spodumene
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- 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
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Abstract
The invention provides a preparation method of a high-strength high-light-transmission antibacterial mildew-proof ceramic rock slab, which comprises the following steps: s1, blank layer batching; s2, adding the raw materials and a proper amount of water of the blank layer into a ball mill to process into slurry, sieving, removing iron and ageing; s3, spray drying to obtain powder; s4, pressing and molding the powder, and drying to obtain a blank layer; s5, applying a bottom glaze material to obtain a bottom glaze layer; s6, decorating and drying the pattern to obtain a decorative layer; s7, polishing glaze to obtain a polished glaze layer; s8, firing; s9, polishing to obtain a rock plate body; wherein, during the polishing in S9, antibacterial agents are added, and the antibacterial agents comprise liquid antibacterial agents and nano polishing antifouling liquid. The rock plate prepared by the preparation method of the rock plate has high strength, good light transmission and 99 percent of antibacterial effect.
Description
Technical Field
The invention relates to the technical field of rock plates, in particular to a preparation method of a high-strength high-light-transmission antibacterial mildew-proof ceramic rock plate.
Background
Along with the social progress and the improvement of living standard of people, the requirements of people on ceramic tiles are advanced all the time, the requirements on the functionality of the ceramic tiles are higher and higher nowadays from the initial practicability to the subsequent decoration, especially the threats of multiple epidemic situations faced by people in recent years make people pay more and more attention to health and health preservation, and the requirements on antibacterial property are gradually shown.
Accordingly, there is a need for improvements in the art that overcome the deficiencies in the prior art.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a preparation method of a high-strength high-light-transmission antibacterial mildew-proof ceramic rock plate, which comprises the following steps:
s1, blank layer batching;
s2, adding the raw materials and a proper amount of water of the blank layer into a ball mill to process into slurry, sieving, removing iron and ageing;
s3, spray drying to obtain powder;
s4, pressing and molding the powder, and drying to obtain a blank layer;
s5, applying a bottom glaze material to obtain a bottom glaze layer;
s6, decorating and drying the pattern to obtain a decorative layer;
s7, polishing glaze to obtain a polished glaze layer;
s8, firing;
s9, polishing to obtain a rock plate body;
wherein, during the polishing in S9, antibacterial agents are added, and the antibacterial agents comprise liquid antibacterial agents and nano polishing antifouling liquid.
Preferably, the green layer feedstock comprises the following ingredients:
preferably, the raw materials of the glaze polishing layer comprise the following components:
preferably, the glazing layer also comprises an antibacterial agent.
Preferably, the weight of the antibacterial agent in the glaze polishing layer is 2-6% of the weight of the glaze polishing layer.
Preferably, the solid content of the liquid antibacterial agent in S9 is 30%.
Preferably, the adding proportion of the liquid antibacterial agent is 3-8% of the weight of the antibacterial agent in S9.
Preferably, in S7, the glaze is ball milled first, the antibacterial agent is added about 1h before the glaze is milled, the ball milling is continued until the ball milling is finished, and the glaze is sieved by a 325-mesh sieve for later use.
Preferably, in S9, the liquid antimicrobial agent and the nano polishing antifouling liquid are mixed and stirred uniformly, wherein the stirring speed is 150-300rpm and the stirring time is more than 60 min.
Preferably, the sintering temperature is 1180-1250 ℃, and the sintering time is 50-90 min.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a preparation method of a high-strength high-light-transmission antibacterial mildew-proof ceramic rock plate, which comprises the following steps: s1, blank layer batching; s2, adding the raw materials and a proper amount of water of the blank layer into a ball mill to process into slurry, sieving, removing iron and ageing; s3, spray drying to obtain powder; s4, pressing and molding the powder, and drying to obtain a blank layer; s5, applying a bottom glaze material to obtain a bottom glaze layer; s6, decorating and drying the pattern to obtain a decorative layer; s7, polishing glaze to obtain a polished glaze layer; s8, firing; s9, polishing to obtain a rock plate body; wherein, during the polishing in S9, antibacterial agents are added, and the antibacterial agents comprise liquid antibacterial agents and nano polishing antifouling liquid. The rock plate prepared by the preparation method of the rock plate has high strength, good light transmission and 99 percent of antibacterial effect.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented according to the content of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
figure 1 is a structural cross-sectional view of a rock plate body of the invention.
In the figure: 100. a rock plate body; 10. a green body layer; 20. a ground coat layer; 30. a decorative layer; 40. and (5) polishing the glaze layer.
Detailed Description
The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, which will enable those skilled in the art to practice the present invention with reference to the accompanying specification. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
The invention relates to a preparation method of a high-strength high-light-transmission antibacterial mildew-proof ceramic rock plate, which comprises a rock plate body 100, wherein the rock plate body 100 sequentially comprises a blank layer 10, a ground glaze layer 20, a decorative layer 30 and a glaze polishing layer 40 from bottom to top as shown in figure 1, wherein the blank layer 10 comprises the following raw materials:
it should be understood that the thicknesses of the layers in the rock plate body 100 shown in figure 1 are not to the thickness scale shown in figure 1, figure 1 merely indicating that the rock plate body 100 is a multi-layered structure.
The blank body adopts a formula system with a high-aluminum framework, the content of aluminum oxide can reach more than 40 percent, the proportion of a glass phase is reduced while the content of mullite in the formula is improved, the brittleness is reduced, the excessive aluminum oxide forms a corundum crystal phase with high elastic modulus, the strength and the toughness of the product are realized by the excessive aluminum oxide and the corundum crystal phase, the apparent density is improved, the heat preservation time is prolonged during firing, the high-temperature reaction is more sufficient, large bubbles are reduced after cooling, small bubbles are dispersed, and the phenomenon of cutting crack caused by the concentration of internal stress of the blank body is reduced; in addition, the albite powder and the calcined talc provide an initial liquid phase in the high-temperature calcination process, so that the refractoriness of the blank is reduced, and the high transmittance of the blank is kept.
The rock plate of the invention makes the product more suitable for post processing, and reduces waste and reject ratio. The antibacterial performance (escherichia coli and staphylococcus aureus) is over 90 percent by testing according to the standard of JC/T897, and the actual detection can reach about 99 percent.
The ultrawhite in the ultrawhite washed ball clay and the ultrawhite washed sodium feldspar powder is commonly called as law in the industry, and the whiteness generally exceeds eight ninety degrees; it is understood that it is not dependent on the amount of a component, and is generally of high purity and with minimal impurities to meet the whiteness standard.
In one embodiment, the inorganic binder is one or a combination of high modulus water glass and aluminum phosphate.
Furthermore, the modulus of the high-modulus water glass is 3-3.4, the larger the modulus of the water glass is, the more the content of silicon oxide is, so that the viscosity of the water glass is improved, the water glass is easy to decompose and harden, and the bonding performance is improved.
Further, the built aluminum phosphate comprises a molar ratio of 1: 5-1: 3 chromium and aluminum phosphates; and/or the built aluminum phosphate comprises a molar ratio of 1: 5-1: 3 aluminum hydroxide and aluminum phosphate. Specifically, when the inorganic binder comprises compound aluminum phosphate, the compound aluminum phosphate is aluminum phosphate doped with chromium salt and/or aluminum hydroxide, and the obtained compound mixture is used for improving the binding property of the inorganic binder and accelerating the curing speed of the inorganic binder.
In one embodiment, the ground glaze layer 20 comprises the following raw materials:
in one embodiment, the glaze polishing layer 40 comprises the following raw materials:
the glaze polishing layer 40 formed by the components is smooth, bright and clean, and has a good visual effect.
Wherein the weight ratio of potassium oxide to sodium oxide is in the range of about 3:2 to about 2: 3.
In some embodiments, the glaze polishing layer 40 further comprises an antibacterial agent in the raw material to improve the antibacterial performance of the whole rock plate; for example, the antibacterial agent can be silver-zinc composite antibacterial agent; further, the grain size of the antibacterial agent in the glaze-polished layer 40 is 10-50nm, so that the antibacterial agent and the glaze are fully fused, and the antibacterial effect of the glaze-polished layer 40 is ensured.
It is to be understood that the antimicrobial agent may also be other common inorganic antimicrobial agents, organic antimicrobial agents, and natural antimicrobial agents.
Furthermore, the weight of the antibacterial agent in the glaze polishing layer 40 is 2-6% of that of the glaze polishing layer, so that the glaze polishing layer 40 has good antibacterial and mildewproof effects on the basis of ensuring the performance of the glaze polishing layer; specifically, the lower limit of the weight of the antibacterial agent in the glaze polishing layer 40 in the weight of the glaze polishing layer is set according to the antibacterial property of more than 90%; the upper limit is economic and avoids the waste of cost caused by too high content of the antibacterial agent.
A preparation method of a high-strength high-light-transmission antibacterial mildew-proof ceramic rock slab comprises the following steps:
s1, blank layer batching; the pound materials are prepared one by one according to the formula of the porcelain tile green body, and comprise:
s2, adding the raw materials and a proper amount of water of the blank layer into a ball mill to process into slurry, sieving, removing iron and ageing; specifically, the weight ratio of the material to the ball stone to the water is 1:1.2:0.5-0.8, wherein the material is the sum of the weighed raw materials; the processed mud material has a 325-mesh sieve residue of not more than 3 percent, and is aged for more than 24 hours after iron removal, so that evenly mixed mud material is obtained;
s3, spray drying to obtain powder; the water content of the powder is 5.5-7.0%, and the powder is aged for more than 24 hours to balance the water content of the powder;
s4, pressing and molding the powder, and drying to obtain a blank layer; the pressure can be formed by pressing with a press at 380-400 Kg/cm2(ii) a Drying the pressed and formed blank in a drying kiln to obtain a blank layer 10;
s5, applying a bottom glaze material to obtain a bottom glaze layer; further, before applying the bottom glaze, a blank polishing device is adopted to remove impurities on the surface of the blank layer 10, and a certain amount of water is sprayed on one surface of the blank layer 10 facing the bottom glaze layer 20, wherein the water spraying amount is 35-40 g/m2To facilitate the application of the base frit; the application of the bottom glaze can be carried out by spraying or sprinkling;
s6, decorating and drying the pattern to obtain a decorative layer; specifically, an ink-jet device can be used to spray ink required by the pattern on the outer surface of the ground coat layer 20 according to a required shape, and a drying device is used to dry and solidify the ink to form a required clear pattern decoration;
s7, polishing glaze to obtain a polished glaze layer; specifically, a roller is adopted to print a glaze polishing material to form a glaze polishing layer with a bright mirror surface effect;
s8, firing;
s9, polishing to obtain a rock plate body; wherein, during the polishing in S9, antibacterial agents are added, and the antibacterial agents comprise liquid antibacterial agents and nano polishing antifouling liquid. And polishing and edging the rock plate body obtained by sintering to ensure that the surface of the rock plate body 10 is smooth and bright.
In some embodiments, the antimicrobial agent, when polished, comprises a liquid antimicrobial agent, a nano-polishing antifouling liquid; wherein the solid content of the liquid antibacterial agent is 25-35%, preferably, the solid content of the liquid antibacterial agent is 30%; to ensure that the antimicrobial agent has the correct effective dosage and good dispersion. The liquid antibacterial agent is selected because the liquid antibacterial agent has better dispersibility and stability when being used compared with the solid antibacterial agent, and performance parameters of a final product cannot be influenced; in addition, because the antibacterial agent is added into the liquid in actual use, the liquid antibacterial agent is more favorable for actual operation and ensures that the liquid antibacterial agent and the nano polishing antifouling liquid have better mixing effect, thereby finally improving the antibacterial and antifouling functions of the polished surface. Further, the liquid antimicrobial agent may be a silver-zinc composite antimicrobial agent, and the nano-polishing antifouling liquid is a silica sol system antifouling liquid.
Furthermore, during polishing, the particle size of the liquid antibacterial agent is 80-140nm, and compared with other particle sizes, the liquid antibacterial agent with the particle size has a better dispersion effect and ensures that the liquid antibacterial agent has better antibacterial performance.
Furthermore, the adding proportion of the liquid antibacterial agent is 3-8% of the weight of the antibacterial agent used in polishing, so that the polishing surface has good antibacterial and mildewproof effects and economy on the basis of ensuring the performance of the polishing surface.
Further, the method also comprises the steps of picking and packaging so as to facilitate shipment.
Further, in S7, firstly, ball milling glaze, adding an antibacterial agent about 1h before milling, continuing ball milling until ball milling is finished, and sieving with a 325-mesh sieve for later use; so as to ensure that the antibacterial agent is fully mixed with the glaze and the antibacterial and mildewproof effects of the glaze polishing layer.
Further, in S9, the liquid antibacterial agent and the nano polishing antifouling liquid are mixed and stirred uniformly at a stirring speed of 150-300rpm for more than 60min to ensure that the liquid antibacterial agent and the nano polishing antifouling liquid are fully mixed and improve the antibacterial and antifouling effects of the polished product.
Furthermore, the sintering temperature is 1180-1250 ℃, and the sintering time is 50-90 min.
Example 1
The preparation method of the high-strength high-light-transmission antibacterial mildewproof ceramic rock plate comprises the following steps:
(1) weighing 30 parts by weight of alpha-alumina powder, 5 parts by weight of calcined talc, 10 parts by weight of super white washed ball clay, 35 parts by weight of super white washed albite powder and 2 parts by weight of inorganic binder; the inorganic binder is water glass with the modulus of 3;
(2) adding the raw materials weighed in the step (1) and 49.2 parts by weight of water into a ball mill to process to obtain slurry, wherein the 325-mesh screen residue is 3%, and the slurry is aged for more than 24 hours after iron removal to obtain slurry which is uniformly mixed;
(3) spray drying to obtain powder with water content of 5.5% and aging for more than 24 hr;
(4) pressing the powder to form the powder, wherein the pressure is 380Kg/cm2Drying to obtain a green body layer, wherein the length of the green body layer is 3.4m, the width of the green body layer is 1.5m, and the thickness of the green body layer is 4 mm;
(5) applying a base glaze material, wherein the base glaze material comprises 35 parts by weight of SiO217 parts by weight of Al2O34 parts by weight of K2O and Na2O, 5 parts by weight of CaO, 1 part by weight of MgO, and 0.1 part by weight of Fe2O30.05 part by weight of TiO2(ii) a Obtaining a ground glaze layer;
(6) spraying ink required by the pattern on the outer surface of the ground coat layer 20 according to a required shape by adopting an ink-jet device, and drying and curing the ink by adopting a drying device to form a required clear pattern decoration to form a decoration layer 30;
(7) by means of roller stampsBrushing and polishing glaze, wherein the polishing glaze comprises 35 parts by weight of SiO217 parts by weight of Al2O34 parts by weight of K2O and Na2O, CaO 8 weight parts, MgO 1 weight part, Fe 0.1 weight part2O30.05 part by weight of TiO2(ii) a And 2 parts by weight of a silver-zinc composite antibacterial agent to form a polished layer 40 having a bright mirror effect;
(8) and sintering at 1180 deg.c for 90 min.
(9) And polishing to obtain the rock plate body. During polishing, an antibacterial agent is added, wherein the antibacterial agent is 3 parts by weight of silver-zinc composite liquid antibacterial agent and 100 parts by weight of nano polishing antifouling liquid, and the nano polishing antifouling liquid is inorganic silica sol.
Example 2
In this example, the raw material of the green body layer 10 includes 45 parts by weight of α -alumina powder, 15 parts by weight of calcined talc, 20 parts by weight of ultrawhite washed ball clay, 45 parts by weight of ultrawhite washed albite powder, and 5 parts by weight of inorganic binder, and 50 parts by weight of water is added during ball milling. The other ingredients and process steps were the same as in example 1.
Example 3
In this example, the raw material of the green body layer 10 includes 42 parts by weight of α -alumina powder, 12 parts by weight of calcined talc, 15 parts by weight of ultrawhite washed ball clay, 40 parts by weight of ultrawhite washed albite powder, 4 parts by weight of inorganic binder, and 40 parts by weight of water is added during ball milling. The other ingredients and process steps were the same as in example 1.
Comparative example 1
In this embodiment, the raw material of the glaze polishing layer 40 is not added with the silver-zinc composite antibacterial agent, and other components and process steps are the same as those in embodiment 1.
Comparative example 2
In this example, no antimicrobial agent was added during polishing, and the other components and process steps were the same as in example 1.
Comparative example 3
In this example, the raw material of the glaze layer 40 is not added with the silver-zinc composite antibacterial agent, and the antibacterial agent is not added during polishing, and other components and process steps are the same as those in example 1.
Comparative example 4
In this example, the raw material of the glaze layer 20 was added with an antibacterial agent, and other components and process steps were the same as those in example 1.
Comparative example 5
In this example, the raw material of the green sheet 10 was not added with α -alumina powder, and other components and process steps were the same as those of example 1.
Comparative example 6
In this example, the raw material of the green body layer 10 was not added with the ultrawhite washed albite powder, and other components and process steps were the same as those of example 1.
Comparative example 7
In this example, calcined talc was not added to the raw material of the green sheet 10, and other components and process steps were the same as those of example 1.
Comparative example 8
In this example, the raw material of the green body layer 10 was not added with the ultrawhite washed albite powder or calcined talc, and other components and process steps were the same as those of example 1.
Comparative example 9
In this example, the blank layer 10 was prepared without adding the ultrawhite ball clay, and the other components and process steps were the same as those in example 1.
Comparative example 10
Ordinary clay-based tiles are commercially available.
Comparative example 11
In this embodiment, the raw material of the glaze layer 20 is added with an antibacterial agent, and the glaze layer is polished without adding an antibacterial agent, and other components and process steps are the same as those of embodiment 1.
The ceramic tile products obtained in examples 1 to 3 and comparative examples 1 to 11 were tested under the same conditions, and the test contents include the strength, transmittance and antibacterial effect of the ceramic tile.
The test method comprises the following steps:
strength:
the strength of the porcelain tile of the invention refers to the flexural strength of the porcelain tile, and specifically, the strength of the porcelain tiles in different examples and comparative examples is tested by a flexural tester.
Transmittance:
the transmittance of the present invention is characterized by the incident light transmittance. In some embodiments, the incident light transmittance is measured by: the incident light transmittance detection adopts an LS117 light transmittance tester, white light with the wavelength of 380-760nm is used as a light source during the test, the detector detects the incident light flux as Q1, then the light-transmitting ceramic tile is placed on a light path to shield the light path, and the detector detects the transmitted light flux Q2 in the light-transmitting area of the ceramic tile, so that the incident light transmittance is Q2/Q1 multiplied by 100 percent.
The antibacterial effect is as follows:
the bricks in each example and comparative example were tested for their antibacterial effects against Escherichia coli and Staphylococcus aureus by a test according to JC/T897 standard.
As shown in table 1 below, the ceramic tiles obtained by examples 1 to 3 have better flexural strength, light transmittance and antibacterial effect than the conventional clay-based ceramic tiles available on the market in comparative example 10; it can be found from examples 1 to 3 and comparative example 1 that when the glaze layer is free from the antibacterial agent, the antibacterial effect is lowered; it can be found by examples 1 to 3 and comparative example 2 that the antibacterial effect is lowered when no antibacterial agent is added at the time of polishing; as can be seen from examples 1 to 3 and comparative example 3, when the glaze polishing layer and the polishing in the raw material of the porcelain tile are both free of the antibacterial agent, the antibacterial effect is reduced; it can be seen from examples 1 to 3 and comparative example 4 that when the antibacterial agent is added to the raw material of the ground coat layer 20, there is substantially no effect on the change of the antibacterial effect of the final product; as can be seen from examples 1-3 and comparative example 5, the absence of alumina powder in the raw materials affects the flexural strength of the final product; as can be seen from examples 1 to 3 and comparative examples 6 to 8, when the green layer raw material does not contain the ultra-white washed albite powder or calcined talc, the light transmittance of the product is affected; through examples 1-3 and comparative example 9, when the green body layer is free of ball clay, the strength of the final product is affected, and the green body layer is over-sintered; it is understood from examples 1 to 3 and comparative example 11 that when only the ground coat layer has the antibacterial agent, the antibacterial agent in the ground coat layer cannot exert the antibacterial function because the ground coat layer is covered with the glaze slip layer, and there is no difference from the commercial tile.
Watch 1
| Flexural strength (MPa) | Antibacterial ratio (%) | Incident light transmittance (%) | |
| Example 1 | 78.9 | 99.9 | 50 |
| Example 2 | 79.5 | 99.7 | 55 |
| Example 3 | 78.2 | 99.9 | 50 |
| Comparative example 1 | 78.9 | 95.6 | 49 |
| Comparative example 2 | 78.6 | 94.3 | 51 |
| Comparative example 3 | 78.2 | 0 | 54 |
| Comparative example 4 | 78.2 | 99.6 | 49 |
| Comparative example 5 | 54.3 | 99.3 | 50 |
| Comparative example 6 | 75.1 | 99.7 | 22 |
| Comparative example 7 | 75.9 | 99.2 | 35 |
| Comparative example 8 | 65.3 | 98.9 | 6 |
| Comparative example 9 | 40.6 | 99.4 | 49 |
| Comparative example 10 | 60.1 | 0 | 0 |
| Comparative example 11 | 78.5 | 0 | 52 |
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; those skilled in the art can readily practice the invention as shown and described in the drawings and detailed description herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (10)
1. A preparation method of a high-strength high-light-transmission antibacterial mildew-proof ceramic rock slab is characterized by comprising the following steps:
s1, blank layer batching;
s2, adding the raw materials and a proper amount of water of the blank layer into a ball mill to process into slurry, sieving, removing iron and ageing;
s3, spray drying to obtain powder;
s4, pressing and molding the powder, and drying to obtain a blank layer;
s5, applying a bottom glaze material to obtain a bottom glaze layer;
s6, decorating and drying the pattern to obtain a decorative layer;
s7, polishing glaze to obtain a polished glaze layer;
s8, firing;
s9, polishing to obtain a rock plate body;
wherein, during the polishing in S9, antibacterial agents are added, and the antibacterial agents comprise liquid antibacterial agents and nano polishing antifouling liquid.
2. The method for preparing the high-strength high-transmittance antibacterial and mildewproof ceramic rock plate as claimed in claim 1, wherein the blank layer comprises the following raw materials:
3. the method for preparing the high-strength high-transmittance antibacterial and mildewproof ceramic rock plate as claimed in claim 1, wherein the raw materials of the glaze polishing layer comprise the following components:
4. the method for preparing a high-strength high-transmittance antibacterial and mildewproof ceramic rock plate as claimed in claim 1 or 3, wherein the glaze polishing layer further comprises an antibacterial agent.
5. The method for preparing a high-strength high-transmittance antibacterial and mildewproof ceramic rock plate as claimed in claim 4, wherein the weight of the antibacterial agent in the glaze polishing layer is 2-6% of the weight of the glaze polishing layer.
6. The method for preparing a high-strength high-transmittance antibacterial mildewproof ceramic rock plate according to claim 1, wherein the solid content of the liquid antibacterial agent in the S9 is 30%.
7. The method for preparing the high-strength high-transmittance antibacterial and mildewproof ceramic rock plate as claimed in claim 1, wherein the adding proportion of the liquid antibacterial agent is 3-8% of the weight of the antibacterial agent in S9.
8. The method for preparing a high-strength high-transmittance antibacterial and mildewproof ceramic rock plate as claimed in claim 1, wherein in S7, glaze is firstly ball-milled, antibacterial agent is added about 1 hour before the glaze is milled, the ball milling is continued until the ball milling is finished, and the glaze is sieved by a 325-mesh sieve for later use.
9. The method for preparing a high-strength, high-transmittance, antibacterial and mildewproof ceramic rock plate as claimed in claim 1, wherein in S9, the liquid antibacterial agent and the nano polishing antifouling liquid are mixed and stirred uniformly, the stirring speed is 150-300rpm, and the stirring time is more than 60 min.
10. The method for preparing the high-strength high-transmittance antibacterial and mildewproof ceramic rock plate as claimed in claim 1, wherein the firing temperature is 1180-1250 ℃ and the firing time is 50-90 min.
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