CN116554716A - Preparation and application methods of ceramic self-cleaning paint - Google Patents
Preparation and application methods of ceramic self-cleaning paint Download PDFInfo
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- CN116554716A CN116554716A CN202310472781.3A CN202310472781A CN116554716A CN 116554716 A CN116554716 A CN 116554716A CN 202310472781 A CN202310472781 A CN 202310472781A CN 116554716 A CN116554716 A CN 116554716A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 77
- 239000000919 ceramic Substances 0.000 title claims abstract description 72
- 239000003973 paint Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 40
- 239000011248 coating agent Substances 0.000 claims abstract description 39
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000003763 carbonization Methods 0.000 claims abstract description 29
- 239000002893 slag Substances 0.000 claims abstract description 24
- 238000009835 boiling Methods 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 17
- 238000005245 sintering Methods 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000000725 suspension Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 11
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- 238000010304 firing Methods 0.000 claims description 7
- 238000009210 therapy by ultrasound Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 230000001680 brushing effect Effects 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical group [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910004283 SiO 4 Inorganic materials 0.000 claims 2
- 239000003245 coal Substances 0.000 claims 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- 229910001570 bauxite Inorganic materials 0.000 claims 1
- 229910000019 calcium carbonate Inorganic materials 0.000 claims 1
- 239000013078 crystal Substances 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 description 27
- 238000012360 testing method Methods 0.000 description 20
- 238000000498 ball milling Methods 0.000 description 12
- 239000011363 dried mixture Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 5
- 238000007598 dipping method Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 239000000975 dye Substances 0.000 description 5
- -1 greasy dirt Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 238000007665 sagging Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000004448 titration Methods 0.000 description 3
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229960000907 methylthioninium chloride Drugs 0.000 description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 2
- 229940043267 rhodamine b Drugs 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229910021532 Calcite Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 238000001782 photodegradation Methods 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000003075 superhydrophobic effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5041—Titanium oxide or titanates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2203/00—Other substrates
- B05D2203/30—Other inorganic substrates, e.g. ceramics, silicon
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Structural Engineering (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides a preparation method and a use method of a ceramic self-cleaning coating, wherein the ceramic self-cleaning coating is prepared by treating raw materials such as alkaline residue, boiling slag, sintering aid, nano titanium dioxide powder and the like through a plurality of steps. The prepared ceramic self-cleaning coating can be coated on the surface of a ceramic blank body through a brush coating method and is maintained in a carbonization reactor to be tightly combined. The self-cleaning paint is suitable for ceramic products of different types, such as sanitary ware, ceramic tiles, tableware and the like.
Description
Technical Field
The invention belongs to the technical field of ceramic materials, and particularly relates to a preparation method and a use method of a ceramic self-cleaning coating.
Background
The ceramic is a common building material, has the characteristics of good wear resistance, corrosion resistance, high temperature resistance and the like, and is widely applied to the fields of buildings, households, kitchen ware, bathroom and the like. However, the ceramic surface is liable to adsorb dirt, oil stain, etc., and is difficult to clean, which affects the beauty and sanitation. Therefore, the development of the ceramic self-cleaning paint can form a self-cleaning effect on the surface of ceramic and has important application value.
Patent application publication No. CN107473714A discloses an ultraviolet light self-cleaning ceramic and a preparation method thereof. The preparation process comprises the steps of proportioning, ball milling, grouting, embryo repairing, firing and the like. Firstly, mixing various raw materials according to a proportion, performing ball milling by using a grinding ball to obtain ceramic mud, then grouting and trimming the ceramic mud, firing for 1-2 hours at 400-500 ℃, then staying for 2-3 hours at 700-900 ℃, and finally heating to 1250-1350 ℃ and firing for 1-2 hours to obtain the ultraviolet self-cleaning ceramic. The product has the effect of ultraviolet self-cleaning, and can be used for manufacturing high-efficiency clean toilet products by combining an ultraviolet lamp.
Patent application publication No. CN111204977A discloses a self-cleaning nano ceramic glaze and a preparation method thereof. The glaze consists of a plurality of raw materials including ceramic glaze, glass, boric acid powder, calcite, kaolin, sanbao Suo porcelain stone, qimen porcelain stone, quartz, magnesium carbonate, dolomite and barium carbonate. After firing, the ceramic surface presents a smooth bright surface, is not easy to be stained with stains, and has a good self-cleaning function.
Patent application publication No. CN111087835A discloses a preparation method of a nano self-cleaning environment-friendly coating. Firstly, adding nano titanium dioxide colloid into a stirring reaction kettle, and adding a certain amount of deionized water, ethanol and an organic solvent for reaction to prepare a nano titanium dioxide colloid solution. Then adding the nano titanium dioxide colloid solution into a heating stirrer, and adding materials such as zeolite, inorganic environment-friendly filler, polyvinylpyrrolidone, sodium benzoate and the like for reaction to prepare the nano titanium dioxide emulsion. Finally, adding a thickening agent and a defoaming agent into the nano titanium dioxide emulsion to prepare the nano self-cleaning environment-friendly coating. The coating has super-hydrophobic and oleophobic properties and excellent self-cleaning properties. In addition, the invention also provides a ball milling device for grinding and refining titanium dioxide particles, and the device can be used for ball milling in mixed materials to achieve better effect.
At present, some researches have been reported on a preparation method of self-cleaning ceramics. Wherein TiO is used 2 The photocatalytic degradation reaction of surface stains and TiO of the ceramic surface under the condition of illumination 2 The method of generating self-cleaning effect by the synergistic effect of the super-hydrophilic flushing is a relatively effective method. However, the conventional self-cleaning ceramics have the following problems: the preparation process is complex and the cost is high; the self-cleaning coating needs to be sintered to affect TiO 2 Activity; the self-cleaning coating has unstable adhesive force and is easy to fall off; the thickness of the self-cleaning coating is not uniform, and the self-cleaning effect is affected. Therefore, it is necessary to provide a ceramic self-cleaning paint with simple preparation process, low cost, strong coating adhesion, no sintering, uniform coating thickness and good self-cleaning effect.
Disclosure of Invention
The invention aims to provide the ceramic self-cleaning paint which has the advantages of simple preparation process, low cost, no need of sintering, strong coating adhesion, uniform coating thickness and good self-cleaning effect and the application method thereof.
In order to achieve the above purpose, the present invention provides the following technical solutions:
1) According to the weight portions, mixing 31 to 78 portions of alkali slag and 20 to 35 portions of boiling slag uniformly, firing to 1200 to 1300 ℃ and preserving heat for 1.5 to 2.5 hours, and cooling along with a furnace to obtain a mixture A.
2) According to the weight portions, 31 to 78 portions of alkaline residue, 20 to 35 portions of boiling slag and 1 to 2 portions of sintering aid are mixed uniformly and then fired to 1200 to 1300 ℃ for heat preservation for 1.5 to 2.5 hours, and the mixture B is obtained after cooling along with a furnace.
3) 14-20 parts of nano titanium dioxide powder and the balance of deionized water are dispersed in water according to parts by weight, and ultrasonic treatment is carried out until uniform nano titanium dioxide suspension is obtained.
4) 15-25 parts of mixture A and 45-75 parts of mixture B are added into the nano titanium dioxide suspension liquid according to the weight parts, and the mixture is uniformly stirred to obtain the ceramic self-cleaning coating.
5) And coating the surface of the ceramic blank body with the prepared self-cleaning coating by adopting a brushing method.
6) And (3) placing the ceramic blank coated with the self-cleaning coating into a carbonization reactor for curing, so that the self-cleaning coating is tightly combined with the blank.
Preferably, the stirring is added in the following sequence: firstly, pouring nano titanium dioxide suspension into a stirring container, then adding a mixture A and a mixture B into the stirring container respectively, and stirring;
stirring speed: 300-500 rpm to ensure adequate mixing of the components while preventing bubble formation due to excessive agitation.
Stirring time: the total stirring time is 15-30 minutes.
Preferably, the carbonization and solidification reaction is to introduce CO into a carbonization reactor at a rate of 0.5-2L/min under normal pressure 2 The carbonization time is 1-3 h.
Compared with the prior art, the invention has the advantages that:
1. preparing the ceramic self-cleaning paint by using waste: the ceramic self-cleaning paint is prepared by utilizing the waste such as the alkaline residue and the boiling slag, and the ceramic self-cleaning paint is prepared by adopting a waste recycling method, so that the cost is low, and the environment is protected and energy is saved.
2. The nano titanium dioxide powder is introduced in the preparation process: the nano titanium dioxide has good photocatalysis function, can decompose organic matters, and has self-cleaning function. After the nano titanium dioxide is introduced, the ceramic self-cleaning coating has stronger photocatalytic activity and self-cleaning performance.
3. The simple using method comprises the following steps: the self-cleaning paint is coated on the surface of the ceramic body by adopting a simple brushing method, and the specific technological parameters are clear and the operation is simple.
4. The wide application scene is as follows: the ceramic self-cleaning coating is suitable for ceramic products of different types, such as sanitary ware, ceramic tiles, tableware and the like, and has wide market application potential.
Detailed Description
The embodiment of the invention further describes the technical scheme. These embodiments are only a part of the present invention, and all other embodiments are within the scope of the present invention as would be understood by one skilled in the relevant art without making any inventive effort.
Example 1
Step 1: the method comprises the steps of putting 32 parts of alkaline residue and 20 parts of boiling slag into a ball mill for ball milling treatment for 2 hours according to parts by weight, then adding 10 parts of water into the dried mixture, uniformly mixing and pouring into a mold. The mixture was compressed into cylindrical tablets having a diameter of 3 cm by applying a pressure of 8 MPa in a tablet press. The cylindrical tablets were placed in an alumina crucible, then fired at a high temperature of 1250 ℃ in a tube furnace and incubated for 2 hours. After cooling with the furnace, mixture a was obtained.
Step 2: according to the weight portions, 30 portions of alkaline residue, 19 portions of boiling slag and 1.5 portions of sintering aid are placed into a ball mill to be ball-milled for 2 hours, then 10 portions of water are mixed into the dried mixture, and the mixture is poured into a die after being uniformly mixed. The mixture was compressed into cylindrical tablets having a diameter of 3 cm by applying a pressure of 8 MPa in a tablet press. The cylindrical tablets were placed in an alumina crucible, then fired at a high temperature of 1250 ℃ in a tube furnace and incubated for 2 hours. After cooling with the furnace, mixture B was obtained.
Step 3: and uniformly stirring 15 parts of nano titanium dioxide powder and the balance of deionized water, and then performing ultrasonic treatment again by using an ultrasonic processor to ensure that the nano titanium dioxide powder is more uniformly dispersed in water, so as to prepare the nano titanium dioxide suspension.
Step 4: 120 parts of mixture B and 50 parts of mixture A are added to the nano titanium dioxide suspension in proportion by weight. The mixture may be stirred uniformly using machine stirring or manual stirring while adding until all the materials are uniformly mixed together.
Step 5, cleaning the surface of the ceramic body, ensuring the surface to be dry and smooth, and avoiding impurities such as greasy dirt, dust and the like; firstly, uniformly stirring self-cleaning paint, pouring the paint into a clean container, then dipping a proper amount of paint, and starting to smoothly paint on the surface of a ceramic blank from one direction; the brush is oriented to be perpendicular to the flowing direction of the paint, so that the paint is ensured to be uniformly covered on the surface; a short brush with the brush hair length of 2.5 and cm is used, so that the thickness of the paint can be conveniently controlled, and the brush leakage and sagging can be avoided; and note that the construction is accurate, carefully observe in each area, check if there are uncovered areas or where it is too full, repeat the poising twice.
Step 6: placing the ceramic blank coated with the self-cleaning coating into a carbonization reactor for curing, and setting a carbonization procedure as follows:
s1, carbonization rate: CO is introduced at a rate of 1.5L/min under normal pressure 2 。
S2, carbonization time: 3 hours.
Example 2
Step 1: 50 parts of alkaline residue and 25 parts of boiling slag are put into a ball mill for ball milling treatment for 3 hours according to the weight parts, 10 parts of water is then mixed into the dried mixture, and the mixture is poured into a die after being uniformly mixed. The mixture was compressed into cylindrical tablets having a diameter of 3 cm by applying a pressure of 8 MPa in a tablet press. The cylindrical sheet was placed in an alumina crucible, and then fired at a high temperature of 1300 ℃ in a tube furnace, and kept for 2 hours. After cooling with the furnace, mixture a was obtained.
Step 2: 54 parts of alkaline residue, 24 parts of boiling slag and 1 part of sintering aid are placed into a ball mill for ball milling treatment for 2.5 hours according to parts by weight, 10 parts of water is added into the dried mixture, and the mixture is poured into a die after being uniformly mixed. The mixture was compressed into cylindrical tablets having a diameter of 3 cm by applying a pressure of 8 MPa in a tablet press. The cylindrical tablets were placed in an alumina crucible, then fired at a high temperature of 1250 ℃ in a tube furnace and incubated for 2 hours. After cooling with the furnace, mixture B was obtained.
Step 3: and (3) uniformly stirring 18 parts of nano titanium dioxide powder and the balance of deionized water, and then performing ultrasonic treatment again by using an ultrasonic processor to ensure that the nano titanium dioxide powder is more uniformly dispersed in water, so as to prepare the nano titanium dioxide suspension.
Step 4: in terms of parts by weight, 20 parts of mixture B and 73 parts of mixture A are added gradually to the nano titanium dioxide suspension. The mixture may be stirred uniformly using machine stirring or manual stirring while adding until all the materials are uniformly mixed together.
Step 5, cleaning the surface of the ceramic body, ensuring the surface to be dry and smooth, and avoiding impurities such as greasy dirt, dust and the like; firstly, uniformly stirring self-cleaning paint, pouring the paint into a clean container, then dipping a proper amount of paint, and starting to smoothly paint on the surface of a ceramic blank from one direction; the brush is oriented to be perpendicular to the flowing direction of the paint, so that the paint is ensured to be uniformly covered on the surface; a short brush with the brush length of 2.5cm is used, so that the thickness of the paint is conveniently controlled, and the brush leakage and sagging are avoided; and note that the construction is accurate, carefully observe in each area, check if there are uncovered areas or where it is too full, repeat the poising twice.
Step 6: placing the ceramic blank coated with the self-cleaning coating into a carbonization reactor for curing, and setting a carbonization procedure as follows:
s1, carbonization rate: CO is introduced at a rate of 1L/min under normal pressure 2 。
S2, carbonization time: 2 hours.
Example 3
Step 1: 75 parts of alkaline residue and 22 parts of boiling slag are put into a ball mill to be ball-milled for 1.5 hours according to the weight parts, 10 parts of water is added into the dried mixture, and the mixture is poured into a die after being uniformly mixed. The mixture was compressed into cylindrical tablets having a diameter of 3 cm by applying a pressure of 8 MPa in a tablet press. The cylindrical tablets were placed in an alumina crucible, then fired at a high temperature of 1250 ℃ in a tube furnace and incubated for 2 hours. After cooling with the furnace, mixture a was obtained.
Step 2: 70 parts of alkaline residue, 22 parts of boiling slag and 1.5 parts of sintering aid are placed into a ball mill for ball milling treatment for 2 hours according to parts by weight, 10 parts of water is added into the dried mixture, and the mixture is poured into a die after being uniformly mixed. The mixture was compressed into cylindrical tablets having a diameter of 3 cm by applying a pressure of 8 MPa in a tablet press. The cylindrical tablets were placed in an alumina crucible, then fired at a high temperature of 1250 ℃ in a tube furnace and incubated for 2 hours. After cooling with the furnace, mixture B was obtained.
Step 3: and (3) uniformly stirring 17 parts of nano titanium dioxide powder and the balance of deionized water, and then performing ultrasonic treatment again by using an ultrasonic processor to ensure that the nano titanium dioxide powder is more uniformly dispersed in water, so as to prepare the nano titanium dioxide suspension.
Step 4: in terms of parts by weight, 20 parts of mixture B and 75 parts of mixture A are added to the nano titanium dioxide suspension in a gradual manner. The mixture may be stirred uniformly using machine stirring or manual stirring while adding until all the materials are uniformly mixed together.
Step 5, cleaning the surface of the ceramic body, ensuring the surface to be dry and smooth, and avoiding impurities such as greasy dirt, dust and the like; firstly, uniformly stirring self-cleaning paint, pouring the paint into a clean container, then dipping a proper amount of paint, and starting to smoothly paint on the surface of a ceramic blank from one direction; the brush is oriented to be perpendicular to the flowing direction of the paint, so that the paint is ensured to be uniformly covered on the surface; a short brush with the brush length of 2.5cm is used, so that the thickness of the paint is conveniently controlled, and the brush leakage and sagging are avoided; and note that the construction is accurate, carefully observe in each area, check if there are uncovered areas or where it is too full, repeat the poising twice.
Step 6: placing the ceramic blank coated with the self-cleaning coating into a carbonization reactor for curing, and setting a carbonization procedure as follows:
s1, carbonization rate: CO is introduced at a rate of 2L/min under normal pressure 2 。
S2, carbonization time: and 1 hour.
Example 4
Step 1: 60 parts of alkaline residue and 21 parts of boiling slag are put into a ball mill for ball milling treatment for 2 hours according to parts by weight, 10 parts of water is then mixed into the dried mixture, and the mixture is poured into a die after being uniformly mixed. The mixture was compressed into cylindrical tablets having a diameter of 3 cm by applying a pressure of 8 MPa in a tablet press. The cylindrical sheet was placed in an alumina crucible, and then fired at a high temperature of 1300 ℃ in a tube furnace, and kept for 2 hours. After cooling with the furnace, mixture B was obtained.
Step 2: 70 parts of alkaline residue, 22 parts of boiling slag and 1.5 parts of sintering aid are placed into a ball mill for ball milling treatment for 2 hours according to parts by weight, 10 parts of water is added into the dried mixture, and the mixture is poured into a die after being uniformly mixed. The mixture was compressed into cylindrical tablets having a diameter of 3 cm by applying a pressure of 8 MPa in a tablet press. The cylindrical sheet was placed in an alumina crucible, and then fired at a high temperature of 1300 ℃ in a tube furnace, and kept for 2 hours. Cooling with furnace to obtainMixture B。
Step 3: 14-20 parts of nano titanium dioxide powder and the balance of deionized water are uniformly stirred, and then ultrasonic treatment is carried out again by an ultrasonic processor, so that the nano titanium dioxide powder is more uniformly dispersed in water, and the nano titanium dioxide suspension is prepared.
Step 4: in terms of parts by weight, 20 parts of mixture B and 70 parts of mixture A are added to the nano titanium dioxide suspension in a gradual manner. The mixture may be stirred uniformly using machine stirring or manual stirring while adding until all the materials are uniformly mixed together.
Step 5, cleaning the surface of the ceramic body, ensuring the surface to be dry and smooth, and avoiding impurities such as greasy dirt, dust and the like; firstly, uniformly stirring self-cleaning paint, pouring the paint into a clean container, then dipping a proper amount of paint, and starting to smoothly paint on the surface of a ceramic blank from one direction; the brush is oriented to be perpendicular to the flowing direction of the paint, so that the paint is ensured to be uniformly covered on the surface; a short brush with the brush length of 2.5cm is used, so that the thickness of the paint is conveniently controlled, and the brush leakage and sagging are avoided; and note that the construction is accurate, carefully observe in each area, check if there are uncovered areas or where it is too full, repeat the poising twice.
Step 6: placing the ceramic blank coated with the self-cleaning coating into a carbonization reactor for curing, and setting a carbonization procedure as follows:
s1, carbonization rate: at normal pressure at a rate of 1.5L/minCO 2 。
S2, carbonization time: 2 hours.
Example 5
Step 1: 75 parts of alkaline residue and 24 parts of boiling slag are put into a ball mill for ball milling treatment for 3 hours according to the weight parts, 10 parts of water is added into the dried mixture, and the mixture is poured into a die after being uniformly mixed. The mixture was compressed into cylindrical tablets having a diameter of 3 cm by applying a pressure of 8 MPa in a tablet press. The cylindrical sheet was placed in an alumina crucible, and then fired at a high temperature of 1200 ℃ in a tube furnace, and kept for 1.5 hours. After cooling with the furnace, mixture a was obtained.
Step 2: 276 parts of alkaline residue, 18 parts of boiling slag and 1 part of sintering aid are placed into a ball mill for ball milling treatment for 3 hours according to parts by weight, 10 parts of water is added into the dried mixture, and the mixture is poured into a die after being uniformly mixed. The mixture was compressed into cylindrical tablets having a diameter of 3 cm by applying a pressure of 8 MPa in a tablet press. The cylindrical tablets were placed in an alumina crucible, then fired at 1300 ℃ in a tube furnace and incubated for 2.5 hours. After cooling with the furnace, mixture B was obtained.
Step 3: and uniformly stirring 20 parts of nano titanium dioxide powder and the balance of deionized water, and then performing ultrasonic treatment again by using an ultrasonic processor to ensure that the nano titanium dioxide powder is more uniformly dispersed in water, so as to prepare the nano titanium dioxide suspension.
Step 4: 15 parts of mixture B and 75 parts of mixture A are added to the nano titanium dioxide suspension in a gradual manner according to parts by weight. The mixture may be stirred uniformly using machine stirring or manual stirring while adding until all the materials are uniformly mixed together.
Step 5, cleaning the surface of the ceramic body, ensuring the surface to be dry and smooth, and avoiding impurities such as greasy dirt, dust and the like; firstly, uniformly stirring self-cleaning paint, pouring the paint into a clean container, then dipping a proper amount of paint, and starting to smoothly paint on the surface of a ceramic blank from one direction; the brush is oriented to be perpendicular to the flowing direction of the paint, so that the paint is ensured to be uniformly covered on the surface; a short brush with the brush length of 2.5cm is used, so that the thickness of the paint is conveniently controlled, and the brush leakage and sagging are avoided; and note that the construction is accurate, carefully observe in each area, check if there are uncovered areas or where it is too full, repeat the poising twice.
Step 6: placing the ceramic blank coated with the self-cleaning coating into a carbonization reactor for curing, and setting a carbonization procedure as follows:
s1, carbonization rate: CO is introduced at a rate of 0.5L/min under normal pressure 2 。
S2, carbonization time: 3 hours.
Performance test:
the following self-cleaning property, abrasion resistance and paint adhesion properties were tested, and the main test method is as follows:
(1) Self-cleaning testing involves two aspects:
degradation performance test: the effect of photocatalytic degradation of organic matters on the surface can be evaluated by detecting the disappearance speed or the color reduction rate of the dye in the dye solution by using methylene blue or rhodamine B and other dyes for photodegradation experiments.
Ultra-hydrophilicity test: the super-hydrophilicity of a material can be assessed by testing its surface contact angle. The contact angle of the sample surface is typically measured by titration or inclined plate methods, and the specific method and apparatus may depend on the test standard chosen.
The following specific test method is adopted:
photocatalytic performance test: a dye solution (e.g., methylene blue or rhodamine B) is first prepared, poured into a container, and then a quantity of self-cleaning ceramic sample is placed under a light source into the solution. The rate of dye disappearance or color reduction was recorded and compared to a control group that did not use self-cleaning ceramic.
Ultra-hydrophilicity test: the contact angle of the sample is measured by using a titration method or an inclined plate method, and the specific steps are as follows:
titration method: a drop of pure water was dropped onto the ceramic surface and slowly lifted upward with a height-adjustable microinjector until a drop disappeared from the ceramic surface. The diameter of the drop and the volume at the time of dripping were recorded, and then the contact angle was calculated. The specific formula is as follows: cos θ= (h/r) ×2, where h is the drop height and r is the drop radius.
Inclined plate method: the self-cleaning ceramic sample is placed on a slope-adjustable inclined plate, and the inclined plate is slowly inclined until water drops start to flow. The contact angle was calculated from the angle of drop and the tilt angle. The specific formula is as follows: cosθ=sinα/sinβ, where α is the drop angle and β is the tilt angle.
(2) Abrasion resistance: placing the sample on a bracket of the testing machine, and ensuring that the contact area of the sample on a clamp of the testing machine is uniform and the clamping force is proper; experimental testing was performed: the abrasion resistance of the ceramic self-cleaning coating to friction is measured in a sliding mode, the set load parameters are controlled by a universal testing machine, and the operations of loading, removing and the like are performed on the sample. The aim of the test is to ensure the force applied to break the coating and to record the experimental data; and analyzing parameters such as the wear resistance, the indirect wear value and the like of the ceramic self-cleaning coating by utilizing data provided by a universal testing machine, directly quantitatively evaluating the performance of the coating from the data, and systematically measuring the friction and wear resistance of the coating.
(2) Paint adhesion properties:
first, adjusting test parameters: the standard load was 10N, the speed was 20mm/s, and the glide distance was 40mm.
And (3) performing test operation: placing a clean and dry self-cleaning ceramic test piece on a test bench; setting test conditions, pressing a scraper in a test device to the surface of a test piece, and carrying out unidirectional scraping under a set load; after scraping, the length and number of each trace was measured and recorded with a metal ruler, and its type and depth were examined and determined using a microscope; repeating the steps 3-4 for a plurality of times until satisfactory test data are obtained.
And recording data and evaluating results, and carrying out statistics and analysis on the recorded data of each test, wherein the statistics and analysis comprise indexes such as average trace length, standard deviation, maximum trace length and the like.
By combining the above test methods, various performance indexes of the product are measured as follows,
| example Performance index | Colour reduction rate | Contact angle (°) | Wear rate | Scratch length (mm) |
| Example 1 | 100% | 8.265 | 0.05 | 4.56 |
| Example 2 | 100% | 7.256 | 0.06 | 3.46 |
| Example 3 | 100% | 8.596 | 0.05 | 3.24 |
| Example 4 | 100% | 6.158 | 0.05 | 4.87 |
| Example 5 | 100% | 6.258 | 0.06 | 4.63 |
The specific embodiments of the present invention have been described in detail hereinabove, but this is not a limitation of the present invention. Modifications and improvements of the invention may occur to those skilled in the art and are intended to be within the spirit and principles of the invention.
Claims (9)
1. The preparation and application method of the ceramic self-cleaning paint are characterized by comprising the following preparation steps:
step A, according to the weight portions, mixing 31 to 78 portions of alkali slag and 20 to 35 portions of boiling slag uniformly, firing to 1200 to 1300 ℃ and preserving heat for 1.5 to 2.5h, and cooling along with a furnace to obtain the slag containing the alkali slagγ-Ca 2 SiO 4 、Ca 3 SiO 5 、CaAl 2 O 4 And CaFeAlO 4 Is a mixture A of (2);
step B, according to the weight portions, mixing 31 to 78 portions of alkali slag, 20 to 35 portions of boiling slag and 1 to 2 portions of sintering aid uniformly, firing to 1200 to 1300 ℃ and preserving heat for 1.5 to 2.5h, and cooling along with a furnace to obtain the powder containing the alkali slagβ-Ca 2 SiO 4 、Ca 3 SiO 5 、CaAl 2 O 4 And CaFeAlO 4 Is a mixture B of (B);
step C, according to the weight portion, 14-20 portions of nano titanium dioxide powder and the rest of deionized water are dispersed in water and subjected to ultrasonic treatment until uniform nano titanium dioxide suspension is obtained;
step D: 15-25 parts of mixture A and 45-75 parts of mixture B are added into the nano titanium dioxide suspension liquid according to the weight parts, and the mixture is uniformly stirred to obtain the ceramic self-cleaning coating.
2. The preparation and application methods of the ceramic self-cleaning paint are characterized by comprising the following application methods: step A, coating the surface of a ceramic blank with the prepared self-cleaning paint by adopting a brushing method; and B, placing the ceramic blank coated with the self-cleaning coating into a carbonization reactor for curing, so that the self-cleaning coating is tightly combined with the blank.
3. The method for preparing the self-cleaning ceramic paint and the use method thereof according to claim 1, wherein the alkaline residue is alkaline residue of an ammonia alkaline process alkaline plant, and the main component of the alkaline residue is calcium carbonate, and the content of the alkaline residue is 60-80%.
4. The method for preparing the ceramic self-cleaning paint and the use method thereof according to claim 1, wherein the boiling slag is waste slag formed by enrichment of incombustible elements such as silicon, aluminum, iron and the like in a doped form when coal gangue or coal is burnt at high temperature in a boiling furnace, and the main effective component is silicon dioxide, and the content is 60-75%.
5. The method for preparing the ceramic self-cleaning paint and the use method thereof according to claim 1, wherein the sintering aid is bauxite waste residue, the content of alumina is more than 30%, and the content of silicate is 10-20%.
6. The method for preparing the ceramic self-cleaning paint and the use method thereof according to claim 1, wherein the particle size of the nano titanium dioxide powder is 5-50 nm, and the crystal shape is spherical or rod-shaped.
7. The method for preparing and using the ceramic self-cleaning paint according to claim 2, wherein the specific process parameters of the brushing method are as follows: the length of the brush hair is 2-3 cm; the coating rate is 90-100 g per square meter; the thickness of the coating is 50-200 mu m.
8. The method for preparing the ceramic self-cleaning paint and the use method thereof according to claim 2, wherein the carbonization mode is normal pressure carbonization, and the carbonization time is 1-3 hours.
9. A ceramic self-cleaning coating and method of making and using the same according to claim 1, wherein the self-cleaning coating is applicable to different types of ceramic products including, but not limited to sanitary ware, tile, tableware, etc.
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