CN116814101A - Non-stick ceramic coating for purple sand and preparation method thereof - Google Patents
Non-stick ceramic coating for purple sand and preparation method thereof Download PDFInfo
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- CN116814101A CN116814101A CN202310784267.3A CN202310784267A CN116814101A CN 116814101 A CN116814101 A CN 116814101A CN 202310784267 A CN202310784267 A CN 202310784267A CN 116814101 A CN116814101 A CN 116814101A
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- ceramic coating
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- purple clay
- purple
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- 238000005524 ceramic coating Methods 0.000 title claims abstract description 56
- 239000004576 sand Substances 0.000 title claims description 20
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000004927 clay Substances 0.000 claims abstract description 46
- 238000000576 coating method Methods 0.000 claims abstract description 44
- 239000011248 coating agent Substances 0.000 claims abstract description 43
- 239000002002 slurry Substances 0.000 claims abstract description 30
- 239000000945 filler Substances 0.000 claims abstract description 16
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910000077 silane Inorganic materials 0.000 claims abstract description 14
- 229920002545 silicone oil Polymers 0.000 claims abstract description 11
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 10
- 239000008199 coating composition Substances 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims description 29
- 238000000227 grinding Methods 0.000 claims description 27
- 239000002245 particle Substances 0.000 claims description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 19
- 239000003973 paint Substances 0.000 claims description 18
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000008367 deionised water Substances 0.000 claims description 13
- 229910021641 deionized water Inorganic materials 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 13
- 230000002378 acidificating effect Effects 0.000 claims description 12
- 238000001723 curing Methods 0.000 claims description 9
- 239000002270 dispersing agent Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- JJQZDUKDJDQPMQ-UHFFFAOYSA-N dimethoxy(dimethyl)silane Chemical compound CO[Si](C)(C)OC JJQZDUKDJDQPMQ-UHFFFAOYSA-N 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 238000005422 blasting Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000005488 sandblasting Methods 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 230000003746 surface roughness Effects 0.000 claims description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 abstract description 14
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 235000019253 formic acid Nutrition 0.000 abstract description 7
- 229910052573 porcelain Inorganic materials 0.000 abstract description 5
- 239000011573 trace mineral Substances 0.000 abstract description 5
- 235000013619 trace mineral Nutrition 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000013035 low temperature curing Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 39
- 239000000243 solution Substances 0.000 description 17
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 15
- 239000002585 base Substances 0.000 description 12
- 235000013305 food Nutrition 0.000 description 12
- 239000000203 mixture Substances 0.000 description 11
- 238000012360 testing method Methods 0.000 description 10
- 239000000377 silicon dioxide Substances 0.000 description 9
- 238000010411 cooking Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000049 pigment Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 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 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 3
- 235000012211 aluminium silicate Nutrition 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 3
- 239000010445 mica Substances 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229910052572 stoneware Inorganic materials 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910014314 BYK190 Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 description 2
- 239000013065 commercial product Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 229910021485 fumed silica Inorganic materials 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000014347 soups Nutrition 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005904 alkaline hydrolysis reaction Methods 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 235000012000 cholesterol Nutrition 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- XYIBRDXRRQCHLP-UHFFFAOYSA-N ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- 239000013538 functional additive Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- -1 polysiloxane Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- 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
- B05D3/12—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 mechanical means
-
- 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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- 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
- B05D3/0272—After-treatment with ovens
-
- 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
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- 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
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
-
- 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
-
- 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
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C09D7/65—Additives macromolecular
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Paints Or Removers (AREA)
Abstract
The application discloses a purple clay non-stick ceramic coating and a preparation method thereof; the coating is a single-coating four-component coating composition; the percentage contents of the components are as follows, calculated by 100 percent: the component A is filler slurry: 50-52%, and the component B contains silane and hydroxyl silicone oil: 20-22% of C component which is 20-25% of formic acid: 0.6-0.8%, and the component D is red porcelain pulp: the balance. According to the application, through the sol-gel reaction of the ceramic coating and the addition of the purple clay, the single-coating purple clay ceramic coating is prepared through a low-temperature curing molding technology, so that the coating has texture and advantages of the purple clay and non-tackiness of the ceramic coating, and the advantages of trace elements required by human bodies and the advantages of non-tackiness of the ceramic coating are perfectly combined.
Description
Technical Field
The application belongs to the technical field of ceramic coating, and in particular relates to a purple clay non-stick ceramic coating and a preparation method thereof.
Background
Purple clay is clay siltstone with coexistent mineral substances, acid and alkali resistance and iron content, contains hydromica, kaolin, quartz, mica scraps, iron and other components, does not contain any harmful metal substances, and is rich in various microelements required by human bodies, such as iron, silicon, manganese, calcium, magnesium, sodium, potassium and the like. Purple stoneware is used for cooking and drinking appliances for over 1000 years, and the purple stoneware is heated uniformly in the cooking process of food, so that fat in the food can be decomposed, soup is not greasy, cholesterol can be reduced, and the purple stoneware pot does not contain any chemical coating, is rich in various mineral microelements, is fragrant in soup and cooking, can not only preserve nutrient components of the food, but also avoid ingestion of harmful metal elements, and is deeply favored by consumers. However, the purple casserole has some disadvantages, such as: (1) The purple clay pot is usually manufactured by high-temperature sintering (800-1200 ℃), and has high energy consumption and low yield; (2) The purple marmite is of a porous structure, so that the possibility of odor tainting is prolonged; (3) The surface is not sticky, so that the dark-red enameled pottery is only suitable for stewing, stewing and the like to cook food with slow fire, is not suitable for cooking and frying food, is not easy to clean due to black surface and residual stains, and has limited application range.
The ceramic coating has the advantages of health, safety and environmental protection, and is increasingly applied to the inner surface of the non-stick pan as a non-stick coating. The ceramic coating is formed by low-temperature curing, so that the energy consumption is low and the yield is high; along with the continuous innovation of the non-sticking durability technology of the ceramic coating, the non-sticking property of the ceramic coating is obviously improved.
Along with the continuous improvement of pursuing quality of life, the development of a cooker which is convenient to use and is more beneficial to physical health is a development trend, and how to combine the advantages of trace elements required by a human body and the advantages of non-tackiness of a ceramic coating by a purple marmite to prepare the non-tackiness purple sand ceramic coating is the direction of scientists.
Disclosure of Invention
The application aims to overcome the defects of the prior art and provides a purple clay non-stick ceramic coating and a preparation method thereof. In particular to a purple sand ceramic coating which is used for the surface of a non-stick pan and has the appearance of purple sand and good non-stick property, and is prepared by combining the advantages of trace elements required by a human body and the non-stick property of a ceramic coating.
The application aims at realizing the following technical scheme:
in a first aspect, the present application relates to a purple clay ceramic coating, which is a single coat four component coating composition; the percentage contents of the components are as follows, calculated by 100 percent:
as an embodiment, the a component comprises, in mass percent based on the total weight of the a component:
as one embodiment, the silica sol is a mixture of acidic silica sols having a particle size of 20-25nm and a particle size of 7-10 nm.
As one embodiment, the mass ratio of the acidic silica sol having a particle diameter of 20 to 25nm and a particle diameter of 7 to 10nm is 3:2-1:1. in the system, the 2 silica sols with different particle sizes are mixed for use, so that a compact coating structure can be formed. The purple clay has a microporous structure, the porosity is about 4-12%, the residue of food smell is easy to cause, the problem of smell mixing can occur when the purple clay is used for cooking food for a long time, a more compact coating structure is formed, the porosity of the coating is controlled to be 2-4%, the problem of smell mixing of food can be reduced, the release of purple clay microelements is not influenced, and the wear resistance and non-sticking durability of the coating are improved.
As one embodiment, the acidic silica sol having a particle size of 20-25nm is selected from the group consisting of B of Acinenobelindzil2034DI, ST-O-40 of Nissan chemistry, gravesAt least one of CL-P.
As one embodiment, the acidic silica sol having a particle diameter of 7 to 10nm is selected from ST-OS of Nissan chemical and the like.
As one embodiment, the pH of the A-component is 9.5 to 10.5.
As one embodiment, the filler is at least one selected from mica powder, silica micropowder, whisker silicon, kaolin, alumina powder and fumed silica.
As an embodiment, the B component comprises, in mass percent based on the total weight of the B component:
as one embodiment, the silane has the molecular formula (CH) 3 ) n Si(OCH 3 ) 4-n (n=1-2). The silane with the molecular general formula has the shortest group molecular chain (methyl/methoxy) and can form a ceramic coating with compact structure, excellent wear resistance and non-tackiness by mixing according to a certain proportion; if the silane is selected, the length of the molecular chain groups is different, and the structural compactness of the formed ceramic coating is different due to the large difference of the hydrolysis polymerization speed, so that the wear resistance and wear resistance non-tackiness of the final coating are also greatly different.
As an embodiment example, the silane is preferably a mixture of methyltrimethoxysilane and dimethyldimethoxysilane.
Further, the mass ratio of methyltrimethoxysilane to dimethyldimethoxysilane is 3:1-4:1. the ceramic coating formed by mixing according to the proportion has compact structure and excellent wear resistance and wear resistance non-tackiness.
As one embodiment, the hydroxyl silicone oil has the structural formula HO [ (CH 3) 2 SiO] n H，n＝7-9。
As one embodiment, the solvent is selected from methanol or isopropanol.
The formic acid of 20-25% of the component C plays a role of a catalyst. The prior art also adds methyl formate, ethyl acetoacetate and maleic anhydride as catalysts to ceramic coatings, however the application has proved by experiments that it is not suitable for the system of the application. While other acids such as acetic acid, hydrochloric acid, citric acid, etc.; however, a large difference in acidity will result in a large difference in pH of the final coating at an addition ratio of 0.3 to 1 part. The pH value is a key technical parameter to be controlled for the ceramic coating, and the ceramic coating can be normally used only within the range of 3.8-5.5, and if the pH value is beyond the range, the ceramic coating can gel and cannot be used. Thus, only 20-25% formic acid is suitable for the system of the application.
As an embodiment, the D component comprises, in mass percent based on the total weight of the D component:
purple clay powder: 60-65%
Dispersing agent: 6-6.5%
Deionized water: the balance.
As an embodiment, the dispersant is selected from at least one of BYK180, BYK190, and doucorning DC-57.
The application also relates to a preparation method of the purple clay ceramic coating, which comprises the following steps:
s1, preparing a component A: mixing silica sol with different particle sizes, adding 1% -1.5% NaOH solution to pH 9.5-10.5, adding filler and deionized water, and mixing; grinding the obtained slurry under the ultrasonic condition until the fineness is less than or equal to 10 mu m to obtain a component A;
s2, preparing a component B: evenly mixing silane, hydroxyl silicone oil, a leveling agent and a solvent to obtain a component B;
s3, preparing a D component: and (3) uniformly mixing the purple sand powder, deionized water and a dispersing agent, and grinding under an ultrasonic condition until the fineness is less than or equal to 10 mu m to obtain a component D.
As an embodiment, the ultrasound conditions in steps S1, S3 are: 40Hz frequency 500-800W power.
As an embodiment, the grinding in steps S1, S3 is carried out in a basket mill at a grinding speed of 1200-1800 rpm.
The application also relates to a method for preparing a single coating by using the purple clay ceramic paint, which comprises the following steps:
a1, pretreatment of a base material: carrying out sand blasting or shot blasting on the surface of the base material to enable the surface roughness of the base material to reach 2.5-5 mu m (then blowing off dust on the surface of the base material by using an air gun), and putting the base material into a preheating oven at 60-80 ℃ for standby;
a2, spraying: filtering the cured coating with 300 mesh filter cloth into a spray gun, and spraying at the temperature of 45-55deg.C;
a3, curing: the sprayed base material is put into an oven for low-temperature solidification at 80-100 ℃ X (5-10) min, then is solidified at high temperature at 180-230 ℃ X (15-20) min, and is naturally cooled.
The step A1 can remove stains and oil stains on the surface of the substrate, so that the coating and the substrate have good adhesion fastness; the pretreatment is not good, and the adhesion of the coating to the substrate is poor.
The curing process comprises the following steps:
adding component C into component B, mixing, adding component A, mixing, reacting for 4-5hr at 120-180 rpm on roll stand, adding component D, aging (0.5-1 hr), and taking off. The pH value is between 4.0 and 5.5. The curing cannot mix the component A and the component B before adding the component C, because the silane of the component B needs to be hydrolyzed under the acidic condition to obtain colorless and transparent silanol, and then reacts with the component A to obtain uniform coating; if A and B are directly mixed, because the A component is alkaline, alkaline hydrolysis of the mixed siloxane results in white precipitate, and uniform coating cannot be obtained. The component D is red porcelain slurry, which provides color for the paint, does not participate in sol-gel reaction, and is added at last only by uniformly mixing.
Compared with the prior art, the application has the following beneficial effects:
(1) The single-coating purple sand ceramic coating is prepared through sol-gel reaction of the ceramic coating and addition of purple sand and a low-temperature curing molding technology, so that the coating has texture and advantages of purple sand and non-tackiness of the ceramic coating, and the advantages of the purple sand capable of releasing microelements required by a human body and the advantages of the non-tackiness of the ceramic coating are perfectly combined;
(2) The coating with a compact structure is prepared by matching two silica sols with different particle sizes, the porosity is controlled to be 2-4%, the problem of food smell mixing caused by a purple clay pore structure is avoided, and the release of purple clay microelements is not influenced;
(3) In the slurry grinding process, through superposition of ultrasonic technology and combination of a denser structure of the coating, the coating has excellent wear resistance and non-sticking durability, and the purple clay ceramic coating with excellent non-sticking durability is prepared, so that the application range of the purple clay cookware is enlarged.
Detailed Description
The present application will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present application, but are not intended to limit the application in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present application.
Unless otherwise indicated, all experimental materials and biological products of the application are commercially available conventional products, and all biological means are carried out by methods commonly used by those skilled in the art.
The purple sand ceramic coating is a single coating, and comprises the following components in percentage by 100 percent:
the ceramic paint is prepared by sol-gel reaction, and the ceramic paint can only be used for 2-3 days after curing because the reaction is in an unstable state continuously, and once the ceramic paint exceeds 3 days, the paint which is not used can not be used because of excessive gelation of the reaction, so that waste is caused. The ceramic paint can be stored for about 1 year by independently storing the ceramic paint components, and is favorable for realizing batch production. Can be used after curing according to the requirement, and avoids waste.
The conventional commercial ceramic paint is composed of 2-3 components, when the color is adjusted, each pigment is required to be respectively ground into color paste, and then the color is blended, so that the time and the labor are wasted, and the waste is easy to cause. The purple clay ceramic coating is provided with four components, namely, the component D (purple clay pigment slurry) is independently arranged, so that the color can be conveniently adjusted, and other functional additives such as: the D component can be mixed with pigment slurries with other colors in different proportions to adjust the color of the purple clay; or an antibacterial agent can be added into the purple clay slurry to prepare purple clay paint with antibacterial function, etc.
The coating is a single coating, and is beneficial to slow release of microelements in purple sand in the cooking process. If the finishing paint is added, trace elements in the purple clay cannot be released due to the blocking of the finishing paint layer, and the advantages of the purple clay cannot be exerted.
The formula needs A component: the component B is more than 2:1, the coating appearance is matte, has texture of purple sand and is excellent in wear resistance and non-tackiness, if A: b is less than or equal to 2, the coating has too high gloss, large appearance gap with purple sand matte, and the coating has wear resistance and slightly poor non-tackiness.
Wherein:
the component A is calculated by 100 percent and comprises the following formula:
silica sol: the main film forming substances of the ceramic coating are the mixture of 2 kinds of acidic silica sol with different particle sizes, and the particle size is 20-25nm: particle size 7-10 nm=3: 2-1:1, the acidic silica sol has wide application range and low production cost, is a commercial product, and has the particle size of 20-25nm, such as: bindzil 2034DI, ST-O-40, dairy chemical, gravesCL-P, etc., silica sol having a particle diameter of 7-10nm such as: ST-OS of daily chemical production, and the like.
2 kinds of silica sol with different particle sizes are mixed for use, so that a compact coating structure can be formed. Because the purple sand has a micropore structure, the porosity is about 4-12%, the food smell is easy to remain, and the problem of smell tainting can occur when the purple sand is used for cooking food for a long time. The coating structure is more compact, the porosity is controlled to be 2-4%, the problem of food smell can be reduced, the release of red porcelain trace elements is not influenced, and the wear-resistant non-stick durability of the coating is improved.
1% NaOH solution: the pH value of the filler slurry is adjusted to 9.5-10.5 by the pH value regulator, the pH value of the filler slurry can be reduced in the storage process after the silica sol grinds the filler slurry, and when the pH value is reduced to below 8.5 and approaches neutrality, the silica sol can be gelled to cause the filler slurry to deteriorate, so that the pH value of the filler slurry needs to be adjusted by an alkaline solution before grinding so as to ensure that the filler slurry does not deteriorate after grinding and during storage.
And (3) filling: the paint has the effects of reducing the paint cost, increasing the solid content of the paint, and the like, and common fillers are selected, for example: mica powder, silica micropowder, whisker silicon, kaolin, alumina powder, fumed silica, and the like.
The component B is calculated by 100 percent and comprises the following formula:
silane: the film forming material of the ceramic coating is methyl trimethoxy silane: dimethyldimethoxysilane = 3:1-4:1.
hydroxyl silicone oil: non-stick aids provide non-stick properties to the coating. The hydroxyl can form chemical bond connection with-OH on the ceramic coating molecular chain, and the ceramic coating has good non-sticking durability in the use process. The structural formula of the hydroxyl silicone oil is HO [ (CH 3) 2 SiO] n H，n＝7-9，n<In the 7-time, the molecular weight of the silicone oil is too small, and the coating is not sticky and has poor durability; when n is more than 9, the molecular weight is too large, and the oil slick phenomenon can occur on the surface of the coating.
Leveling agent: is a common coating auxiliary agent which can promote the coating to form a flat, smooth and even coating film in the drying and film forming process. Commercially available products such as: BYK333.
Solvent: the compatibility of the silicone oil and the water-based paint system can be increased, and one of methanol and isopropanol can be selected.
The component C is 25% formic acid, and the catalyst for ceramic coating sol-gel reaction is prepared by hydrolyzing silane under acidic condition and then performing polycondensation reaction with silica sol. If 25% formic acid is used to reduce the addition error, a small amount of addition error can bring about a large pH variation due to a small amount of addition, resulting in a large difference in the service life and final properties of the ceramic coating.
The component D is red porcelain pulp
Purple clay powder: 60-65%
Dispersing agent: 6-6.5%
Deionized water: the balance.
Purple clay powder: the pigment component equivalent to the purple clay ceramic coating contains various microelements beneficial to human body, and can provide purple clay color texture for the coating and release microelements beneficial to human body in the cooking process. And (3) a commercial product.
Dispersing agent: for improving pigment wetting, reducing milling time and stabilizing pigment dispersion, commercially available products such as: BYK180, BYK190, dakangning DC-57, etc.
The preparation method of the purple clay ceramic coating comprises the following steps:
(1) Preparing a component A filling slurry: firstly, uniformly mixing silica sols with different particle sizes, then adding a 1% NaOH solution, uniformly mixing, testing the pH value between 9.5 and 10.5, then adding a filler and deionized water, uniformly mixing, pouring the slurry into a grinding cylinder, putting the grinding cylinder into an ultrasonic cleaner, grinding the slurry at the frequency of 500W at 40Hz, namely grinding the slurry under the dual functions of ultrasonic and basket grinding, discharging when the test fineness is less than or equal to 10 mu m after 1 to 1.5 hours, testing the pH value of the filler slurry, and adjusting the pH value to be more than 9.0 by using the 1% NaOH solution if the pH value is less than 9.0 for later use.
(2) And (2) preparing a component B: and uniformly mixing silane, hydroxyl silicone oil, a leveling agent and a solvent to obtain a component B for later use.
(3) And D, preparing the component D, namely, the purple mortar: the purple sand powder, deionized water and a dispersing agent are uniformly mixed, slurry is poured into a grinding cylinder, the grinding cylinder is put into an ultrasonic cleaner, and is ground under the power of 500W at the frequency of 40Hz by a basket grinder at the speed of 1200-1800 rpm, namely, the grinding of the slurry is carried out under the dual actions of the ultrasonic and the basket grinder, and the slurry is discharged when the test fineness is less than or equal to 10 mu m after 1-1.5 hours for standby.
Test data show that the filler slurry and the purple clay slurry are subjected to dispersion grinding under the double functions of ultrasonic and basket grinding, and the wear-resistant non-sticking durability of the final coating is very excellent.
The compositions referred to in the following examples and comparative examples are as follows:
TABLE 1
TABLE 2
C1 is 25% formic acid; d1 is 60 percent of purple sand powder, 180 percent of BYK and 6 percent of rest deionized water; d2 is 65% + BYK 180% + balance deionized water.
Example 1
The embodiment provides a purple clay non-stick ceramic coating; the compositions and amounts thereof are shown in Table 3.
The preparation steps of the purple clay non-stick ceramic coating in the embodiment are as follows:
(1) Preparing a component A filling slurry: firstly, uniformly mixing silica sols with different particle sizes, then adding a 1% NaOH solution, uniformly mixing, testing the pH value between 9.5 and 10.5, then adding a filler and deionized water, uniformly mixing, pouring the slurry into a grinding cylinder, putting the grinding cylinder into an ultrasonic cleaner, grinding the slurry at the frequency of 500W at 40Hz, namely grinding the slurry under the dual functions of ultrasonic and basket grinding, discharging when the test fineness is less than or equal to 15 mu m after 1 to 1.5 hours, testing the pH value of the filler slurry, and adjusting the pH value to be more than 9.0 by using the 1% NaOH solution if the pH value is less than 9.0 for later use.
(2) And (2) preparing a component B: and uniformly mixing silane, hydroxyl silicone oil, a leveling agent and a solvent to obtain a component B for later use.
(3) And D, preparing the component D, namely, the purple mortar: the purple sand powder, deionized water and a dispersing agent are uniformly mixed, slurry is poured into a grinding cylinder, the grinding cylinder is put into an ultrasonic cleaner, and is ground under the power of 500W at the frequency of 40Hz by a basket grinder at the speed of 1200-1800 rpm, namely, the grinding of the slurry is carried out under the dual actions of the ultrasonic and the basket grinder, and the slurry is discharged when the test fineness is less than or equal to 25 mu m after 1-1.5 hours for standby.
The preparation method of the single-coating layer by the purple clay non-stick ceramic coating comprises the following steps:
(1) Pretreatment of a base material: carrying out sand blasting or shot blasting on the surface of the base material to ensure that the roughness of the surface of the base material reaches 3 mu m, then blowing off dust on the surface of the base material by using an air gun, and putting the base material into a preheating oven at 60 ℃ for standby;
(2) Spraying: adding the cured coating (component C into component B, mixing, adding component A, mixing, standing on a roller frame for reacting at 150 r/min for 4hr, adding component D, curing for 1hr, taking down, filtering with 300 mesh filter cloth, and spraying at 50deg.C;
(3) Curing: and (3) putting the sprayed base material into an oven for low-temperature solidification at 90 ℃ for 8min, then carrying out high-temperature solidification at 200 ℃ for 18min, and naturally cooling.
Examples 2 to 4
Examples 2-4 provide a non-stick ceramic coating of purple clay; the compositions and amounts thereof are shown in Table 3. The preparation is the same as in example 1.
Comparative examples 1 to 5
Comparative examples 1-5 provide a red porcelain ceramic coating; the compositions and amounts thereof are shown in Table 3. The preparation is the same as in example 1.
Comparative example 6
The comparative example provides a purple clay ceramic coating; the composition and amounts thereof were substantially the same as in example 1 except that: hydrochloric acid was used instead of 25% formic acid. Because hydrochloric acid is too acidic, the pH value is between 2.0 and 3.0 after curing, and the paint is quickly gelled and cannot be used.
Comparative example 7
(1) Preparing solution A: weighing solution A, 10.75g of polysiloxane, 10.5g of silicon dioxide, 17.75g of aluminum oxide, 5.25g of zinc oxide, 125.5g of water, 17.75g of methanol, 16g of methylcellulose, 15g of ferric oxide, 5g of zirconium dioxide and 26.5g of titanium dioxide according to the weight, taking water as a solvent, fully mixing, and stirring for 120 minutes by a stirrer at 180 rpm;
(2) Preparing a solution B: weighing solution B, 57.3g of silicon dioxide and 42.7g of methanol according to the weight, fully mixing the solution B with the methanol serving as a solvent, and stirring the mixture for 120 minutes by a 180rpm stirrer;
( 3) Mixing the solution A and the solution B, pouring the solution A into the solution B under the heating condition, and placing the solution A and the solution B on a stirrer for stirring for 5 hours at the temperature of 35 ℃ and the rotating speed of 100 rounds per minute (weight ratio of 2.5:1 )
(4) The rolling was stopped and left for 3 hours.
Table 3 composition and amount (wt.%)
The main properties of the coatings prepared in the above examples and comparative examples are shown in the following table 4; the test results are shown in tables 5, 6 and 7.
TABLE 4 Table 4
TABLE 5
TABLE 6
TABLE 7
The foregoing describes specific embodiments of the present application. It is to be understood that the application is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the application. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.
Claims (10)
1. A purple clay ceramic coating is a single-coating four-component coating composition; the percentage contents of the components are as follows, calculated by 100 percent:
2. the purple clay ceramic coating according to claim 1, wherein the component a comprises, in mass percent based on the total weight of the component a:
3. the purple clay ceramic coating according to claim 2, wherein the silica sol has a mass ratio of 3:2-1:1 and the acidic silica sol with the particle size of 20-25nm and the particle size of 7-10 nm.
4. The purple clay ceramic coating according to claim 3, wherein the acidic silica sol with a particle size of 20-25nm is selected from the group consisting of Bindzil 2034DI of Ackersinobell, ST-O-40 of Nissan chemical, gravesAt least one of CL-P; the acidic silica sol with particle size of 7-10nm is selected from ST-OS of Nissan chemical.
5. The purple clay ceramic coating according to claim 1, wherein the B component comprises, in mass percent based on the total weight of the B component:
6. the purple clay ceramic coating according to claim 5, wherein the silane has a molecular formula (CH 3 ) n Si(OCH 3 ) 4-n (n=1-2); the structural formula of the hydroxyl silicone oil is HO [ (CH 3) 2 SiO] n H，n＝7-9。
7. The purple clay ceramic coating according to claim 6, wherein the silane is selected from the group consisting of 3:1-4:1 and dimethyldimethoxysilane.
8. The purple clay ceramic coating according to claim 1, wherein the D component comprises, in mass percent based on the total weight of the D component:
purple clay powder: 60-65%
Dispersing agent: 6-6.5%
Deionized water: the balance.
9. A method for preparing the purple clay ceramic paint according to claim 1, wherein the method comprises the following steps:
s1, preparing a component A: mixing silica sol with different particle sizes, adding 1% -1.5% NaOH solution to pH 9.5-10.5, adding filler and deionized water, and mixing; grinding the obtained slurry under the ultrasonic condition until the fineness is less than or equal to 10 mu m to obtain a component A;
s2, preparing a component B: evenly mixing silane, hydroxyl silicone oil, a leveling agent and a solvent to obtain a component B;
s3, preparing a D component: and (3) uniformly mixing the purple sand powder, deionized water and a dispersing agent, and grinding under an ultrasonic condition until the fineness is less than or equal to 10 mu m to obtain a component D.
10. A method for preparing a single coating layer according to claim 1, characterized in that it comprises the following steps:
a1, pretreatment of a base material: carrying out sand blasting or shot blasting on the surface of the base material to enable the surface roughness of the base material to reach 2.5-5 mu m, and putting the base material into a preheating oven at 60-80 ℃ for standby;
a2, spraying: filtering the cured coating with 300 mesh filter cloth into a spray gun, and spraying at the temperature of 45-55deg.C;
a3, curing: the sprayed base material is put into an oven for low-temperature solidification at 80-100 ℃ X (5-10) min, then is solidified at high temperature at 180-230 ℃ X (15-20) min, and is naturally cooled.
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