CN114853491A - Dustproof and easy-to-clean ceramic thin plate and preparation method thereof - Google Patents
Dustproof and easy-to-clean ceramic thin plate and preparation method thereof Download PDFInfo
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- CN114853491A CN114853491A CN202210299993.1A CN202210299993A CN114853491A CN 114853491 A CN114853491 A CN 114853491A CN 202210299993 A CN202210299993 A CN 202210299993A CN 114853491 A CN114853491 A CN 114853491A
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- 230000003670 easy-to-clean Effects 0.000 title claims abstract description 43
- 239000000919 ceramic Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims description 27
- 229910052582 BN Inorganic materials 0.000 claims abstract description 84
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 84
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 70
- 238000004140 cleaning Methods 0.000 claims abstract description 48
- 238000005245 sintering Methods 0.000 claims abstract description 42
- 239000000654 additive Substances 0.000 claims abstract description 37
- 230000000996 additive effect Effects 0.000 claims abstract description 37
- 238000000227 grinding Methods 0.000 claims abstract description 32
- 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 claims abstract description 31
- 239000000835 fiber Substances 0.000 claims abstract description 30
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 25
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 25
- 239000003607 modifier Substances 0.000 claims abstract description 23
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 19
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910002113 barium titanate Inorganic materials 0.000 claims abstract description 18
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 18
- 229910052878 cordierite Inorganic materials 0.000 claims abstract description 18
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000010436 fluorite Substances 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 230000004048 modification Effects 0.000 claims abstract description 13
- 238000012986 modification Methods 0.000 claims abstract description 13
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 claims abstract description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 8
- 239000010433 feldspar Substances 0.000 claims abstract description 8
- 229940072033 potash Drugs 0.000 claims abstract description 8
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims abstract description 8
- 235000015320 potassium carbonate Nutrition 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 42
- 238000001035 drying Methods 0.000 claims description 31
- 230000005855 radiation Effects 0.000 claims description 30
- 238000001816 cooling Methods 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 27
- 238000009210 therapy by ultrasound Methods 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 22
- 238000005406 washing Methods 0.000 claims description 19
- 238000003825 pressing Methods 0.000 claims description 18
- 239000000377 silicon dioxide Substances 0.000 claims description 15
- 230000006872 improvement Effects 0.000 claims description 14
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- 238000001354 calcination Methods 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 12
- 239000000839 emulsion Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910021389 graphene Inorganic materials 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- -1 rare earth lanthanum chloride Chemical class 0.000 claims description 8
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- CXRFDZFCGOPDTD-UHFFFAOYSA-M Cetrimide Chemical compound [Br-].CCCCCCCCCCCCCC[N+](C)(C)C CXRFDZFCGOPDTD-UHFFFAOYSA-M 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 7
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 7
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- 229920001661 Chitosan Polymers 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 7
- 230000000052 comparative effect Effects 0.000 description 11
- 238000002715 modification method Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000011538 cleaning material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002344 surface layer Substances 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
- C04B35/71—Ceramic products containing macroscopic reinforcing agents
- C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
- C04B35/80—Fibres, filaments, whiskers, platelets, or the like
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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
- C04B35/195—Alkaline earth aluminosilicates, e.g. cordierite or anorthite
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- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
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- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
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Abstract
The invention discloses a dustproof and easy-to-clean ceramic sheet which comprises the following raw materials in parts by weight: 20-30 parts of cordierite, 15-25 parts of fluorite, 5-10 parts of potassium feldspar, 3-6 parts of self-cleaning additive, 1-2 parts of barium titanate sintering aid, 0.2-0.6 part of talcum powder and 0.1-0.3 part of modified nano silicon dioxide. The ceramic sheet is prepared by matching raw materials such as cordierite, fluorite, potash feldspar, talcum powder and the like, sintering and forming are carried out through a barium titanate sintering aid, the added self-cleaning additive and the modified nano silicon dioxide are matched to enhance the easy-to-clean effect of the product, the self-cleaning additive is irradiated by mullite fiber to improve the activity, modification treatment is carried out in a flaky boron nitride modifier, a complex is formed through thermal modification and grinding, the mullite fiber with a needle-shaped structure is distributed on the flaky boron nitride, and uniform stain-resistant and self-cleaning point positions are formed on the surface of the sheet, so that the cleaning is convenient.
Description
Technical Field
The invention relates to the technical field of ceramic sheets, in particular to a dustproof and easy-to-clean ceramic sheet and a preparation method thereof.
Background
The ceramic thin plate has the characteristics of energy conservation, consumption reduction, resource conservation, light weight, good fire resistance and the like, can replace the traditional thick wall-mounted porcelain plate, is light in material and convenient to transport, has small pulling force on the wall body, can reduce the load of the wall body, and has wide application prospect. However, the ceramic thin plate has a large area and a small thickness, so that a plurality of technical problems still exist in the processing and using processes, wherein the problems of dust prevention and cleaning are particularly prominent. With the continuous improvement of the requirements on safety guarantee of high-rise curtain walls, high-end home decoration, high-end convention, national public places and the like, the environmental protection and the cleanness of the decorative ceramic sheet need to be improved better.
The existing ceramic thin plate is mostly improved in strength performance, and few researches are carried out on improvement of functions of convenience in cleaning and dust removal.
Disclosure of Invention
In view of the defects of the prior art, the present invention aims to provide a dustproof and easy-to-clean ceramic thin plate and a preparation method thereof, so as to solve the problems in the background art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a dustproof and easy-to-clean ceramic sheet which comprises the following raw materials in parts by weight:
20-30 parts of cordierite, 15-25 parts of fluorite, 5-10 parts of potassium feldspar, 3-6 parts of self-cleaning additive, 1-2 parts of barium titanate sintering aid, 0.2-0.6 part of talcum powder and 0.1-0.3 part of modified nano silicon dioxide.
Preferably, the dustproof and easy-to-clean ceramic sheet is prepared from the following raw materials in parts by weight:
25 parts of cordierite, 20 parts of fluorite, 7.5 parts of potassium feldspar, 4.5 parts of self-cleaning additive, 1.5 parts of barium titanate sintering aid, 0.4 part of talcum powder and 0.2 part of modified nano silicon dioxide.
Preferably, the preparation method of the self-cleaning additive comprises the following steps:
s1: placing the mullite fiber in a radiation field for radiation treatment, wherein the radiation adopts proton radiation, the radiation dose is 40-100kGy, and the irradiation is finished to obtain the irradiation modified mullite fiber;
s2: sending the irradiation modified mullite fiber into a flaky boron nitride modifier of 2-3 times for stirring and dispersing, wherein the stirring speed is 500-600r/min, the stirring time is 45-55min, the stirring temperature is 75-85 ℃, and after the stirring is finished, washing and drying are carried out to obtain a mullite-flaky boron nitride composite material;
s3: carrying out thermal improvement treatment on the mullite-flaky boron nitride composite material, and finally air-cooling to room temperature to obtain a mullite-flaky boron nitride improved body;
s4: and (3) feeding the mullite-flaky boron nitride improved body into a grinding machine for grinding, wherein the grinding speed is 2000-2500r/min, the grinding time is 35-45min, and the self-cleaning additive is obtained after grinding.
Preferably, the thermal improvement treatment comprises the following specific operation steps: calcining at 350 deg.C for 15-25min, and cooling to 220 deg.C at 1-3 deg.C/min.
Preferably, the preparation method of the flaky boron nitride modifier comprises the following steps:
s1: adding chitosan and 1-5% of r-aminopropyltriethoxysilane according to the amount of 10-20% of the total amount of the acrylate emulsion, stirring until the mixture is fully mixed, then adding hydrochloric acid to adjust the pH value of the solution to 5.0-6.0, then adding tetradecyl trimethyl ammonium bromide accounting for 0.2-0.5% of the total amount of the acrylate emulsion, and continuously stirring fully to obtain a modified solution;
s2: carrying out cold-heat treatment on the flaky boron nitride, and obtaining the shaped flaky boron nitride after the treatment is finished;
s3: and (3) sending the molded flaky boron nitride into a modification liquid according to the weight ratio of 1:5 for ultrasonic treatment, wherein the ultrasonic power is 100-300W, the ultrasonic time is 45-55min, and the flaky boron nitride modifier is obtained after the ultrasonic treatment, washing and drying.
Preferably, the cold-heat treatment method of the flaky boron nitride comprises the following steps: preheating at 45-65 ℃ for 10-20min, heating to 150-170 ℃ at the rate of 4-5 ℃/s, keeping the temperature for 5-10min, air-cooling to room temperature, refrigerating at-5 ℃ for 2-6min, cooling, storing at room temperature for later use, and heating to 60-70 ℃ for later use after returning to room temperature.
Preferably, the thickness of the flaky boron nitride is 1-1.5um, and the sheet diameter is 2-3 um; the diameter of the mullite fiber is 2-6um, and the length-diameter ratio is 10-30.
Preferably, the modification method of the modified nano-silica comprises the following steps:
adding 15-25 parts of nano silicon dioxide into absolute ethyl alcohol according to the weight ratio of 1:3 for uniform dispersion, then adding 2-6 parts of ammonium dihydrogen phosphate aqueous solution with the molar concentration of 0.12-0.18mol/L, 1-3 parts of silane coupling agent KH560, then adding 1-3 parts of rare earth lanthanum chloride solution with the mass fraction of 1-4%, carrying out ultrasonic treatment at the power of 500 plus 600W for 25-35min, finishing the ultrasonic treatment, washing with water, and drying to obtain the modified nano silicon dioxide.
The invention provides a preparation method of a dustproof and easily-cleaned ceramic sheet, which comprises the following steps:
sequentially adding cordierite, fluorite, potash feldspar, a self-cleaning additive, a barium titanate sintering aid, talcum powder and modified nano-silica into a stirrer to be fully mixed and stirred, then sending the mixture into a ball mill to be ball-milled, sieving the ball-milled mixture with a 200-mesh sieve, and then pre-pressing the mixture, wherein the pressing pressure is 4000-5000 tons/m, and the pressing thickness is 3-6 mm;
step two, then carrying out calcination sintering treatment, wherein the sintering temperature is 1360-;
and step three, spraying an easy-to-clean material with the thickness of 1-3mm on the surface of the sintering material in the step two, drying at the temperature of 110-120 ℃ for 20-30min, and finishing drying to obtain the ceramic sheet.
Preferably, the preparation method of the easy-cleaning material comprises the following steps: mixing 10-20 parts of epoxy resin, 1-3 parts of graphene, 15-25 parts of acetone and 2-5 parts of polyethylene glycol according to parts by weight, and fully mixing to obtain the easy-to-clean material.
Compared with the prior art, the invention has the following beneficial effects:
the ceramic sheet is prepared by matching raw materials such as cordierite, fluorite, potash feldspar, talcum powder and the like, the ceramic sheet is sintered and molded by a barium titanate sintering aid, the added self-cleaning additive and the modified nano-silica are matched to enhance the easy-cleaning effect of the product, the self-cleaning additive is irradiated by mullite fiber to improve the activity, the modification treatment is carried out in a flaky boron nitride modifier, a complex is formed by thermal modification and grinding, the mullite fiber with a needle-shaped structure is distributed on the flaky boron nitride, uniform stain-resistant and self-cleaning point positions are formed on the surface of the sheet, so that the cleaning is convenient, the modified nano-silica is matched to enhance the self-cleaning effect of the product, in addition, the easy-cleaning material with the thickness of 1-3mm is sprayed on the surface of the sintering material, a hydrophilic stain-resistant layer formed by the raw materials such as epoxy resin and graphene is matched with a hydrophilic mechanism formed by graphene, the further self-cleaning treatment of the combined water molecules is facilitated, and the self-cleaning efficiency is improved.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The dustproof and easy-to-clean ceramic sheet comprises the following raw materials in parts by weight:
20-30 parts of cordierite, 15-25 parts of fluorite, 5-10 parts of potassium feldspar, 3-6 parts of self-cleaning additive, 1-2 parts of barium titanate sintering aid, 0.2-0.6 part of talcum powder and 0.1-0.3 part of modified nano silicon dioxide.
The dustproof and easy-to-clean ceramic sheet is prepared from the following raw materials in parts by weight:
25 parts of cordierite, 20 parts of fluorite, 7.5 parts of potassium feldspar, 4.5 parts of self-cleaning additive, 1.5 parts of barium titanate sintering aid, 0.4 part of talcum powder and 0.2 part of modified nano silicon dioxide.
The preparation method of the self-cleaning additive of the embodiment comprises the following steps:
s1: placing the mullite fiber in a radiation field for radiation treatment, wherein the radiation adopts proton radiation, the radiation dose is 40-100kGy, and the irradiation is finished to obtain the irradiation modified mullite fiber;
s2: sending the irradiation modified mullite fiber into a flaky boron nitride modifier of 2-3 times for stirring and dispersing, wherein the stirring speed is 500-600r/min, the stirring time is 45-55min, the stirring temperature is 75-85 ℃, and after the stirring is finished, washing and drying are carried out to obtain a mullite-flaky boron nitride composite material;
s3: carrying out thermal improvement treatment on the mullite-flaky boron nitride composite material, and finally air-cooling to room temperature to obtain a mullite-flaky boron nitride improved body;
s4: and (3) feeding the mullite-flaky boron nitride improved body into a grinding machine for grinding, wherein the grinding speed is 2000-2500r/min, the grinding time is 35-45min, and the self-cleaning additive is obtained after grinding.
The thermal improvement treatment of the embodiment comprises the following specific operation steps: calcining at 350 deg.C for 15-25min, and cooling to 220 deg.C at 1-3 deg.C/min.
The preparation method of the flaky boron nitride modifier comprises the following steps:
s1: adding chitosan and 1-5% of r-aminopropyltriethoxysilane according to the amount of 10-20% of the total amount of the acrylate emulsion, stirring until the mixture is fully mixed, then adding hydrochloric acid to adjust the pH value of the solution to 5.0-6.0, then adding tetradecyl trimethyl ammonium bromide accounting for 0.2-0.5% of the total amount of the acrylate emulsion, and continuously stirring fully to obtain a modified solution;
s2: carrying out cold-heat treatment on the flaky boron nitride, and obtaining the shaped flaky boron nitride after the treatment is finished;
s3: and (3) sending the molded flaky boron nitride into a modification liquid according to the weight ratio of 1:5 for ultrasonic treatment, wherein the ultrasonic power is 100-300W, the ultrasonic time is 45-55min, and the flaky boron nitride modifier is obtained after the ultrasonic treatment, washing and drying.
The method for cold-heat treatment of the flaky boron nitride in the embodiment comprises the following steps: preheating at 45-65 ℃ for 10-20min, heating to 150-170 ℃ at the rate of 4-5 ℃/s, keeping the temperature for 5-10min, air-cooling to room temperature, refrigerating at-5 ℃ for 2-6min, cooling, storing at room temperature for later use, and heating to 60-70 ℃ for later use after returning to room temperature.
The thickness of the flaky boron nitride in the embodiment is 1-1.5um, and the sheet diameter is 2-3 um; the diameter of the mullite fiber is 2-6um, and the length-diameter ratio is 10-30.
The modification method of the modified nano-silica of the embodiment comprises the following steps:
adding 15-25 parts of nano silicon dioxide into absolute ethyl alcohol according to the weight ratio of 1:3 for uniform dispersion, then adding 2-6 parts of ammonium dihydrogen phosphate aqueous solution with the molar concentration of 0.12-0.18mol/L, 1-3 parts of silane coupling agent KH560, then adding 1-3 parts of rare earth lanthanum chloride solution with the mass fraction of 1-4%, carrying out ultrasonic treatment at the power of 500 plus 600W for 25-35min, finishing the ultrasonic treatment, washing with water, and drying to obtain the modified nano silicon dioxide.
The preparation method of the dustproof and easy-to-clean ceramic sheet comprises the following steps:
sequentially adding cordierite, fluorite, potash feldspar, a self-cleaning additive, a barium titanate sintering aid, talcum powder and modified nano-silica into a stirrer to be fully mixed and stirred, then sending the mixture into a ball mill to be ball-milled, sieving the ball-milled mixture with a 200-mesh sieve, and then pre-pressing the mixture, wherein the pressing pressure is 4000-5000 tons/m, and the pressing thickness is 3-6 mm;
step two, then carrying out calcination sintering treatment, wherein the sintering temperature is 1360-;
and step three, spraying an easy-to-clean material with the thickness of 1-3mm on the surface of the sintering material in the step two, drying at the temperature of 110-120 ℃ for 20-30min, and finishing drying to obtain the ceramic sheet.
The preparation method of the easy-to-clean material in the embodiment comprises the following steps: mixing 10-20 parts of epoxy resin, 1-3 parts of graphene, 15-25 parts of acetone and 2-5 parts of polyethylene glycol according to parts by weight, and fully mixing to obtain the easy-to-clean material.
Example 1.
The dustproof and easy-to-clean ceramic sheet comprises the following raw materials in parts by weight:
20 parts of cordierite, 15 parts of fluorite, 5 parts of potassium feldspar, 3 parts of self-cleaning additive, 1 part of barium titanate sintering aid, 0.2 part of talcum powder and 0.1 part of modified nano silicon dioxide.
The preparation method of the self-cleaning additive of the embodiment comprises the following steps:
s1: placing the mullite fiber in a radiation field for radiation treatment, wherein the radiation adopts proton radiation, the radiation dose is 40kGy, and the irradiation is finished to obtain the irradiation modified mullite fiber;
s2: sending the irradiation modified mullite fiber into a 2 times of flaky boron nitride modifier for stirring and dispersing, wherein the stirring speed is 500r/min, the stirring time is 45min, the stirring temperature is 75 ℃, and after the stirring is finished, washing and drying are carried out to obtain a mullite-flaky boron nitride composite material;
s3: carrying out thermal improvement treatment on the mullite-flaky boron nitride composite material, and finally air-cooling to room temperature to obtain a mullite-flaky boron nitride improved body;
s4: and (3) feeding the mullite-flaky boron nitride improved body into a grinding machine for grinding, wherein the grinding speed is 2000r/min, the grinding time is 35min, and the self-cleaning additive is obtained after grinding.
The thermal improvement treatment of the embodiment comprises the following specific operation steps: calcining at 300 deg.C for 15min, and cooling to 200 deg.C at 1 deg.C/min.
The preparation method of the flaky boron nitride modifier comprises the following steps:
s1: adding chitosan and 1% of r-aminopropyltriethoxysilane according to the amount of 10% of the total amount of the acrylate emulsion, stirring the mixture fully, adding hydrochloric acid to adjust the pH value of the solution to 5.0, then adding tetradecyl trimethyl ammonium bromide accounting for 0.2% of the total amount of the acrylate emulsion, and continuously stirring the mixture fully to obtain a modified solution;
s2: carrying out cold-heat treatment on the flaky boron nitride, and obtaining the shaped flaky boron nitride after the treatment is finished;
s3: and (3) feeding the molded flaky boron nitride into the modification liquid according to the weight ratio of 1:5 for ultrasonic treatment, wherein the ultrasonic power is 100W, the ultrasonic time is 45min, and after the ultrasonic treatment, washing and drying are carried out to obtain the flaky boron nitride modifier.
The method for cold-heat treatment of the flaky boron nitride in the embodiment comprises the following steps: preheating at 45 deg.C for 10min, heating to 150 deg.C at 4 deg.C/s, keeping the temperature for 5min, air cooling to room temperature, refrigerating at-5 deg.C for 2min, cooling, standing at room temperature, recovering to room temperature, and heating to 60 deg.C.
The thickness of the flaky boron nitride in the embodiment is 1um, and the sheet diameter is 2 um; the diameter of the mullite fiber is 2um, and the length-diameter ratio is 10.
The modification method of the modified nano-silica of the embodiment comprises the following steps:
adding 15 parts of nano silicon dioxide into absolute ethyl alcohol according to the weight ratio of 1:3 for uniform dispersion, then adding 2 parts of ammonium dihydrogen phosphate aqueous solution with the molar concentration of 0.12mol/L, 1 part of silane coupling agent KH560, then adding 1 part of rare earth lanthanum chloride solution with the mass fraction of 1%, carrying out ultrasonic treatment for 25min at the power of 500W, finishing the ultrasonic treatment, washing with water, and drying to obtain the modified nano silicon dioxide.
The preparation method of the dustproof and easy-to-clean ceramic sheet comprises the following steps:
sequentially adding cordierite, fluorite, potash feldspar, a self-cleaning additive, a barium titanate sintering aid, talcum powder and modified nano-silica into a stirrer to be fully mixed and stirred, then sending the mixture into a ball mill to be ball-milled, sieving the ball-milled mixture with a 200-mesh sieve, and then pre-pressing the mixture, wherein the pressing pressure is 4000 tons/m, and the pressing thickness is 3 mm;
step two, then carrying out calcination sintering treatment, wherein the sintering temperature is 1360 ℃, sintering for 2h, and cooling to room temperature after sintering;
and step three, spraying an easy-to-clean material with the thickness of 1mm on the surface of the sintering material obtained in the step two, drying for 20min at the temperature of 110 ℃, and finishing drying to obtain the ceramic sheet.
The preparation method of the easy-to-clean material in the embodiment comprises the following steps: mixing 10 parts of epoxy resin, 1 part of graphene, 15 parts of acetone and 2 parts of polyethylene glycol according to parts by weight, and fully mixing to obtain the easy-to-clean material.
Example 2.
The dustproof and easy-to-clean ceramic sheet comprises the following raw materials in parts by weight:
30 parts of cordierite, 25 parts of fluorite, 10 parts of potassium feldspar, 6 parts of self-cleaning additive, 2 parts of barium titanate sintering aid, 0.6 part of talcum powder and 0.3 part of modified nano silicon dioxide.
The preparation method of the self-cleaning additive of the embodiment comprises the following steps:
s1: placing the mullite fiber in a radiation field for radiation treatment, wherein the radiation adopts proton radiation, the radiation dose is 100kGy, and the irradiation is finished to obtain the irradiation modified mullite fiber;
s2: sending the irradiation modified mullite fiber into 3 times of the flaky boron nitride modifier for stirring and dispersing, wherein the stirring speed is 600r/min, the stirring time is 55min, the stirring temperature is 85 ℃, and after the stirring is finished, washing and drying are carried out to obtain the mullite-flaky boron nitride composite material;
s3: carrying out thermal improvement treatment on the mullite-flaky boron nitride composite material, and finally air-cooling to room temperature to obtain a mullite-flaky boron nitride improved body;
s4: and (3) feeding the mullite-flaky boron nitride improved body into a grinding machine for grinding, wherein the grinding speed is 2500r/min, the grinding time is 45min, and the self-cleaning additive is obtained after grinding.
The thermal improvement treatment of the embodiment comprises the following specific operation steps: calcining at 350 deg.C for 25min, and cooling to 220 deg.C at 3 deg.C/min.
The preparation method of the flaky boron nitride modifier comprises the following steps:
s1: adding chitosan and 5% of r-aminopropyltriethoxysilane according to the amount of 20% of the total amount of the acrylate emulsion, stirring the mixture fully, adding hydrochloric acid to adjust the pH value of the solution to 6.0, then adding tetradecyl trimethyl ammonium bromide accounting for 0.5% of the total amount of the acrylate emulsion, and continuously stirring the mixture fully to obtain a modified solution;
s2: carrying out cold-heat treatment on the flaky boron nitride, and obtaining the shaped flaky boron nitride after the treatment is finished;
s3: and (3) feeding the molded flaky boron nitride into the modification liquid according to the weight ratio of 1:5 for ultrasonic treatment, wherein the ultrasonic power is 300W, the ultrasonic time is 55min, and after the ultrasonic treatment, washing and drying are carried out to obtain the flaky boron nitride modifier.
The method for cold-heat treatment of the flaky boron nitride in the embodiment comprises the following steps: preheating at 65 ℃ for 20min, heating to 170 ℃ at the speed of 5 ℃/s, keeping the temperature for 10min, air-cooling to room temperature, refrigerating at-5 ℃ for 6min, cooling, storing at room temperature for later use, recovering to room temperature, and heating to 70 ℃ for later use.
The thickness of the flaky boron nitride in the embodiment is 1.5um, and the diameter of the flaky boron nitride is 3 um; the diameter of the mullite fiber is 6um, and the length-diameter ratio is 30.
The modification method of the modified nano-silica of the embodiment comprises the following steps:
adding 25 parts of nano silicon dioxide into absolute ethyl alcohol according to the weight ratio of 1:3 for uniform dispersion, then adding 6 parts of ammonium dihydrogen phosphate aqueous solution with the molar concentration of 0.18mol/L, 3 parts of silane coupling agent KH560, then adding 3 parts of rare earth lanthanum chloride solution with the mass fraction of 4%, carrying out ultrasonic treatment at the power of 600W for 35min, finishing the ultrasonic treatment, washing with water, and drying to obtain the modified nano silicon dioxide.
The preparation method of the dustproof and easy-to-clean ceramic sheet comprises the following steps:
sequentially adding cordierite, fluorite, potash feldspar, a self-cleaning additive, a barium titanate sintering aid, talcum powder and modified nano silicon dioxide into a stirrer to be fully mixed and stirred, then sending the mixture into a ball mill to be ball-milled, sieving the ball-milled mixture with a 200-mesh sieve, and then pre-pressing the mixture, wherein the pressing pressure is 5000 tons/m, and the pressing thickness is 6 mm;
step two, then carrying out calcination sintering treatment at 1370 ℃ for 3h, and cooling to room temperature after sintering;
and step three, spraying an easy-to-clean material with the thickness of 3mm on the surface of the sintering material obtained in the step two, drying for 30min at the temperature of 120 ℃, and finishing drying to obtain the ceramic sheet.
The preparation method of the easy-to-clean material in the embodiment comprises the following steps: mixing 20 parts of epoxy resin, 3 parts of graphene, 25 parts of acetone and 5 parts of polyethylene glycol according to parts by weight, and fully mixing to obtain the easy-to-clean material.
Example 3.
The dustproof and easy-to-clean ceramic sheet comprises the following raw materials in parts by weight:
25 parts of cordierite, 20 parts of fluorite, 7.5 parts of potassium feldspar, 4.5 parts of self-cleaning additive, 1.5 parts of barium titanate sintering aid, 0.4 part of talcum powder and 0.2 part of modified nano silicon dioxide.
The preparation method of the self-cleaning additive of the embodiment comprises the following steps:
s1: placing the mullite fiber in a radiation field for radiation treatment, wherein proton radiation is adopted for radiation, the radiation dose is 70kGy, and the irradiation is finished to obtain the irradiation modified mullite fiber;
s2: sending the irradiation modified mullite fiber into a 2.5 times of flaky boron nitride modifier for stirring and dispersing, wherein the stirring speed is 550r/min, the stirring time is 50min, the stirring temperature is 80 ℃, and after the stirring, washing and drying are carried out to obtain a mullite-flaky boron nitride composite material;
s3: carrying out thermal improvement treatment on the mullite-flaky boron nitride composite material, and finally air-cooling to room temperature to obtain a mullite-flaky boron nitride improved body;
s4: and (3) feeding the mullite-flaky boron nitride improved body into a grinding machine for grinding, wherein the grinding speed is 2250r/min, the grinding time is 40min, and the self-cleaning additive is obtained after grinding.
Preferably, the thermal improvement treatment comprises the following specific operation steps: calcining at 325 deg.C for 20min, and cooling to 210 deg.C at 2 deg.C/min.
The preparation method of the flaky boron nitride modifier comprises the following steps:
s1: adding chitosan and 3% of r-aminopropyltriethoxysilane according to the amount of 15% of the total amount of the acrylate emulsion, stirring the mixture fully, adding hydrochloric acid to adjust the pH of the solution to 5.5, then adding tetradecyl trimethyl ammonium bromide accounting for 0.35% of the total amount of the acrylate emulsion, and continuously stirring the mixture fully to obtain a modified solution;
s2: carrying out cold-heat treatment on the flaky boron nitride, and obtaining the shaped flaky boron nitride after the treatment is finished;
s3: and (3) feeding the molded flaky boron nitride into the modification liquid according to the weight ratio of 1:5 for ultrasonic treatment, wherein the ultrasonic power is 200W, the ultrasonic time is 50min, and after the ultrasonic treatment, washing and drying are carried out to obtain the flaky boron nitride modifier.
The method for cold-heat treatment of the flaky boron nitride in the embodiment comprises the following steps: preheating at 50 deg.C for 15min, heating to 160 deg.C at 4.5 deg.C/s, keeping the temperature for 7.5min, air cooling to room temperature, refrigerating at-5 deg.C for 4min, cooling, standing at room temperature, recovering to room temperature, and heating to 65 deg.C.
The thickness of the flaky boron nitride in the embodiment is 1.25um, and the diameter of the flaky boron nitride is 2.5 um; the diameter of the mullite fiber is 4um, and the length-diameter ratio is 20.
The modification method of the modified nano-silica of the embodiment comprises the following steps:
adding 20 parts of nano silicon dioxide into absolute ethyl alcohol according to the weight ratio of 1:3 for uniform dispersion, then adding 4 parts of ammonium dihydrogen phosphate aqueous solution with the molar concentration of 0.16mol/L, 2 parts of silane coupling agent KH560, then adding 2 parts of rare earth lanthanum chloride solution with the mass fraction of 2.5%, carrying out ultrasonic treatment for 30min at the power of 550W, finishing the ultrasonic treatment, washing with water, and drying to obtain the modified nano silicon dioxide.
The preparation method of the dustproof and easy-to-clean ceramic sheet comprises the following steps:
sequentially adding cordierite, fluorite, potash feldspar, a self-cleaning additive, a barium titanate sintering aid, talcum powder and modified nano-silica into a stirrer to be fully mixed and stirred, then sending the mixture into a ball mill to be ball-milled, sieving the ball-milled mixture with a 200-mesh sieve, and then pre-pressing the mixture, wherein the pressing pressure is 4500 tons/m, and the pressing thickness is 4.5 mm;
step two, then carrying out calcination sintering treatment, wherein the sintering temperature is 1365 ℃, sintering for 2.5h, and cooling to room temperature after sintering;
and step three, spraying an easy-to-clean material with the thickness of 2mm on the surface of the sintering material obtained in the step two, drying for 25min at the temperature of 115 ℃, and finishing drying to obtain the ceramic sheet.
The preparation method of the easy-to-clean material in the embodiment comprises the following steps: mixing 15 parts of epoxy resin, 2 parts of graphene, 20 parts of acetone and 3.5 parts of polyethylene glycol according to parts by weight, and fully mixing to obtain the easy-to-clean material.
Comparative example 1.
The difference from the example 3 is that the platy boron nitride in the self-cleaning additive is replaced by sericite.
Comparative example 2.
The difference from the example 3 is that the mullite fiber in the self-cleaning additive is replaced by carbon fiber.
Comparative example 3.
Different from the embodiment 3, the tetradecyl trimethyl ammonium bromide of the modification liquid in the preparation of the platy boron nitride modifier is replaced by sodium dodecyl sulfate.
Comparative example 4.
The difference from the example 3 is that r-aminopropyltriethoxysilane is not added into the modification liquid in the preparation of the flaky boron nitride modifier.
Comparative example 5.
Unlike example 3, no modified nanosilica was added.
Comparative example 6.
Different from the embodiment 3, the modified nano-silica is modified by nano-diatomite;
the modification method of the modified nano diatomite comprises the following steps:
adding 20 parts of nano diatomite into absolute ethyl alcohol according to the weight ratio of 1:3 for uniform dispersion, then adding 4 parts of ammonium dihydrogen phosphate aqueous solution with the molar concentration of 0.16mol/L, 2 parts of silane coupling agent KH560, then adding 2 parts of rare earth lanthanum chloride solution with the mass fraction of 2.5%, carrying out ultrasonic treatment for 30min at the power of 550W, finishing the ultrasonic treatment, washing with water, and drying to obtain the modified nano diatomite.
Comparative example 7.
The difference from the embodiment 3 is that the modified nano-silica modified medium rare earth lanthanum chloride solution is replaced by ferric chloride solution with mass fraction of 2.5%.
Comparative example 8.
Unlike example 3, the easy-to-clean material spray treatment was not used.
The sheets prepared in examples 1 to 3 and comparative examples 1 to 8 were coated with dirt in a weight ratio of 2:1:1 by using oil dirt, dust and sand, and then left at 30 to 40 ℃ for 3 hours, followed by wiping treatment, and the dirt was wiped clean by applying wiping force and the appearance surface layer was inspected for damage.
The performance of examples 1-3 and comparative examples 1-8 was tested as follows:
as can be seen from examples 1-3 and comparative examples 1-8, the wiping force in example 3 of the invention is minimum, and can reach 3.33N, and the dirt can be cleaned; the lamellar boron nitride in the self-cleaning additive is replaced by sericite, and the mullite fiber in the self-cleaning additive is replaced by carbon fiber, so that the wiping force of the product is increased, and the mullite fiber-lamellar boron nitride selected in the self-cleaning additive has specificity;
meanwhile, the modification of the flaky boron nitride modifier has uniqueness, and the functional effect of the invention cannot be achieved by adopting other methods and processes for treatment; in addition, the self-cleaning capability of the product can be effectively improved by adding the nano silicon dioxide, and the effect of the invention cannot be realized by replacing the nano diatomite raw material;
the cleaning agent is not sprayed with the easy-to-clean material, so that the wiping force of the product is obviously improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (10)
1. The dustproof and easy-to-clean ceramic sheet is characterized by comprising the following raw materials in parts by weight:
20-30 parts of cordierite, 15-25 parts of fluorite, 5-10 parts of potassium feldspar, 3-6 parts of self-cleaning additive, 1-2 parts of barium titanate sintering aid, 0.2-0.6 part of talcum powder and 0.1-0.3 part of modified nano silicon dioxide.
2. The dustproof and easy-to-clean ceramic sheet according to claim 1, which is prepared from the following raw materials in parts by weight:
25 parts of cordierite, 20 parts of fluorite, 7.5 parts of potassium feldspar, 4.5 parts of self-cleaning additive, 1.5 parts of barium titanate sintering aid, 0.4 part of talcum powder and 0.2 part of modified nano silicon dioxide.
3. The dustproof easily-cleaned ceramic sheet according to claim 1, wherein the preparation method of the self-cleaning additive comprises the following steps:
s1: placing the mullite fiber in a radiation field for radiation treatment, wherein the radiation adopts proton radiation, the radiation dose is 40-100kGy, and the irradiation is finished to obtain the irradiation modified mullite fiber;
s2: sending the irradiation modified mullite fiber into a flaky boron nitride modifier of 2-3 times for stirring and dispersing, wherein the stirring speed is 500-600r/min, the stirring time is 45-55min, the stirring temperature is 75-85 ℃, and after the stirring is finished, washing and drying are carried out to obtain a mullite-flaky boron nitride composite material;
s3: carrying out thermal improvement treatment on the mullite-flaky boron nitride composite material, and finally air-cooling to room temperature to obtain a mullite-flaky boron nitride improved body;
s4: and (3) feeding the mullite-flaky boron nitride improved body into a grinding machine for grinding, wherein the grinding speed is 2000-2500r/min, the grinding time is 35-45min, and the self-cleaning additive is obtained after grinding.
4. The dustproof and easy-to-clean ceramic sheet according to claim 3, wherein the thermal improvement treatment comprises the following specific operation steps: calcining at 350 deg.C for 15-25min, and cooling to 220 deg.C at 1-3 deg.C/min.
5. The dustproof and easy-to-clean ceramic sheet according to claim 3, wherein the flaky boron nitride modifier is prepared by the following steps:
s1: adding chitosan and 1-5% of r-aminopropyltriethoxysilane according to the amount of 10-20% of the total amount of the acrylate emulsion, stirring until the mixture is fully mixed, then adding hydrochloric acid to adjust the pH value of the solution to 5.0-6.0, then adding tetradecyl trimethyl ammonium bromide accounting for 0.2-0.5% of the total amount of the acrylate emulsion, and continuously stirring fully to obtain a modified solution;
s2: carrying out cold-heat treatment on the flaky boron nitride, and obtaining the shaped flaky boron nitride after the treatment is finished;
s3: and (3) sending the molded flaky boron nitride into a modification liquid according to the weight ratio of 1:5 for ultrasonic treatment, wherein the ultrasonic power is 100-300W, the ultrasonic time is 45-55min, and the flaky boron nitride modifier is obtained after the ultrasonic treatment, washing and drying.
6. The dustproof and easy-to-clean ceramic sheet according to claim 5, wherein the cold-heat treatment method of the flaky boron nitride comprises the following steps: preheating at 45-65 ℃ for 10-20min, heating to 150-170 ℃ at the rate of 4-5 ℃/s, keeping the temperature for 5-10min, air-cooling to room temperature, refrigerating at-5 ℃ for 2-6min, cooling, storing at room temperature for later use, and heating to 60-70 ℃ for later use after returning to room temperature.
7. The dustproof and easy-to-clean ceramic sheet according to claim 6, wherein the thickness of the flaky boron nitride is 1-1.5um, and the sheet diameter is 2-3 um; the diameter of the mullite fiber is 2-6um, and the length-diameter ratio is 10-30.
8. The ceramic sheet of claim 6, wherein the modified nano-silica is modified by the following steps:
adding 15-25 parts of nano silicon dioxide into absolute ethyl alcohol according to the weight ratio of 1:3 for uniform dispersion, then adding 2-6 parts of ammonium dihydrogen phosphate aqueous solution with the molar concentration of 0.12-0.18mol/L, 1-3 parts of silane coupling agent KH560, then adding 1-3 parts of rare earth lanthanum chloride solution with the mass fraction of 1-4%, carrying out ultrasonic treatment at the power of 500 plus 600W for 25-35min, finishing the ultrasonic treatment, washing with water, and drying to obtain the modified nano silicon dioxide.
9. A method for preparing a dust-proof easily cleanable ceramic sheet according to any one of claims 1-8, comprising the steps of:
sequentially adding cordierite, fluorite, potash feldspar, a self-cleaning additive, a barium titanate sintering aid, talcum powder and modified nano-silica into a stirrer to be fully mixed and stirred, then sending the mixture into a ball mill to be ball-milled, sieving the ball-milled mixture with a 200-mesh sieve, and then pre-pressing the mixture, wherein the pressing pressure is 4000-5000 tons/m, and the pressing thickness is 3-6 mm;
step two, then carrying out calcination sintering treatment, wherein the sintering temperature is 1360-;
and step three, spraying an easy-to-clean material with the thickness of 1-3mm on the surface of the sintering material in the step two, drying at the temperature of 110-120 ℃ for 20-30min, and finishing drying to obtain the ceramic sheet.
10. The method for preparing the dustproof and easy-to-clean ceramic sheet according to claim 9, wherein the method for preparing the easy-to-clean material comprises the following steps: mixing 10-20 parts of epoxy resin, 1-3 parts of graphene, 15-25 parts of acetone and 2-5 parts of polyethylene glycol according to parts by weight, and fully mixing to obtain the easy-to-clean material.
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