CN116606594A - Energy-saving ceramic coating slurry and preparation method thereof - Google Patents
Energy-saving ceramic coating slurry and preparation method thereof Download PDFInfo
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- CN116606594A CN116606594A CN202310664143.1A CN202310664143A CN116606594A CN 116606594 A CN116606594 A CN 116606594A CN 202310664143 A CN202310664143 A CN 202310664143A CN 116606594 A CN116606594 A CN 116606594A
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- 238000005524 ceramic coating Methods 0.000 title claims abstract description 38
- 239000006255 coating slurry Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000011248 coating agent Substances 0.000 claims abstract description 29
- 238000000576 coating method Methods 0.000 claims abstract description 29
- 229920001709 polysilazane Polymers 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000011737 fluorine Substances 0.000 claims abstract description 15
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 15
- 230000005855 radiation Effects 0.000 claims abstract description 13
- 239000002270 dispersing agent Substances 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 8
- 239000000049 pigment Substances 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000003960 organic solvent Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000000498 ball milling Methods 0.000 claims description 6
- 229920002401 polyacrylamide Polymers 0.000 claims description 4
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 4
- UDSFAEKRVUSQDD-UHFFFAOYSA-N Dimethyl adipate Chemical compound COC(=O)CCCCC(=O)OC UDSFAEKRVUSQDD-UHFFFAOYSA-N 0.000 claims description 2
- MUXOBHXGJLMRAB-UHFFFAOYSA-N Dimethyl succinate Chemical compound COC(=O)CCC(=O)OC MUXOBHXGJLMRAB-UHFFFAOYSA-N 0.000 claims description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- -1 dodecyl alcohol ester Chemical class 0.000 claims description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N ethyl butylhexanol Natural products CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 238000003801 milling Methods 0.000 claims 1
- 229920001522 polyglycol ester Polymers 0.000 claims 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 6
- 238000000227 grinding Methods 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 abstract description 3
- 239000002893 slag Substances 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000011109 contamination Methods 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000011859 microparticle Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000004593 Epoxy Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011268 mixed slurry Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 206010003591 Ataxia Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229920006222 acrylic ester polymer Polymers 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052914 metal silicate Inorganic materials 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/16—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers in which all the silicon atoms are connected by linkages other than oxygen atoms
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- 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
-
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
- C08K2003/3036—Sulfides of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The energy-saving ceramic coating slurry containing fluorine polysilazane is prepared through mixing fluorine polysilazane resin with organic solvent, adding far infrared radiation powder, dispersant and pigment while stirring, dispersing, grinding in ball mill to particle size below 100 nm, and final coating onto the surface of the substrate. The preparation process of the energy-saving ceramic coating slurry is simple, the energy-saving ceramic coating slurry is suitable for various coating modes, and the specific polysilazane resin and nano-microparticle technology changes the combination mechanism and surface mechanical properties of the ceramic coating and a substrate, so that the coating and the substrate are tightly combined in a similar complex mode, and the energy-saving ceramic coating slurry has the comprehensive characteristics of contamination and slag bonding resistance, corrosion resistance, abrasion resistance and the like. The coating formed by curing the energy-saving ceramic coating slurry has stable and adjustable high emissivity in a wide band range, does not decay with time, and greatly improves the heat utilization rate. The coating formed by solidifying the energy-saving ceramic coating slurry does not fall off under the condition of repeatedly heating and cooling 5000 times.
Description
Technical Field
The application relates to a coating, in particular to an energy-saving ceramic coating slurry which has the advantages of simple process, strong adhesive force, high emissivity, excellent heat conduction and no falling off after repeated heating and a preparation method thereof.
Background
There is a great heat loss during cooking in an induction cooker, electroceramic cooker, or gas cooker, etc. The far infrared radiation coating is used for modifying the surface of the pot, so that the heat absorption and heat conduction capacity of the heat exchange surface is greatly improved, the heating time of food materials in the pot is shortened, and the energy-saving effect is realized.
The existing far infrared radiation coating generally uses epoxy resin, silicate or phosphate, polyurethane, acrylic ester or copolymer thereof as a binder. Chinese patent CN200910093489.0 discloses a spectrum generator, a preparation method thereof and a preparation method of far-infrared radiation paint, which comprises grinding the mixed slurry in a stirred ball mill, and grinding in an ultra-fine grinding mill to obtain micro-nano particle mixed slurry; mixing the micro-nano particle mixed slurry and the aqueous epoxy film forming agent in a high-function stirrer, and then kneading the mixture on a three-roller grinder to generate a hybrid mixed solution, wherein the aqueous epoxy film forming agent is an aqueous epoxy curing agent; and fully stirring and uniformly mixing the generated hybrid mixed solution and the water-based epoxy film forming agent to prepare the far infrared radiation coating, wherein the water-based epoxy film forming agent is epoxy resin or an epoxy resin mixture. Chinese patent CN89105088.4 uses copper slag as radiation material, and is composed of at least one of iron oxide, manganese oxide, chromium oxide, nickel oxide, cobalt oxide and silicate or phosphate inorganic binder. The device has the characteristics of greatly improving heating efficiency, saving energy and being low in manufacturing cost. Chinese patent CN94107640.7 provides a normal temperature far infrared radiation coating, which is mainly composed of hematite ore, and also contains other metal and non-metal oxides and silicate or phosphate inorganic binders. The full emissivity of the solar energy heating device is matched with the wavelength, so that the heating efficiency can be greatly improved, and the energy is saved. Japanese patent JPH10279845a uses polyurethane as a matrix material to obtain a ceramic of high blend degree. Korean patent KR102512561B1 provides a far infrared ray coating composition having zirconia as a main component and having excellent far infrared ray properties. The coating film has excellent adhesion to a metal substrate and excellent crack resistance, and can prevent cracking or peeling of the coating film due to thermal expansion of the substrate. The far infrared radiation coating has the defects of insufficient adhesive force, easy falling of a repeatedly heated-cooled coating, complex preparation process and the like.
Disclosure of Invention
The application aims to overcome the defects of the prior art and provide the energy-saving ceramic coating slurry which has the advantages of good adhesive force, high hardness, difficult falling after repeated heating and cooling and simple preparation process and the preparation method thereof.
The application provides the following technical scheme:
the energy-saving ceramic coating slurry at least comprises the following components in parts by mass:
60-85 parts of fluorine-containing polysilazane resin;
30-35 parts of far infrared radiation powder;
3-6 parts of pigment;
2-8 parts of dispersing agent;
65-80 parts of organic solvent.
Preferably, the fluorine-containing polysilazane resin comprises the following structural units:
wherein x: y: z=75:15:6.
Preferably, the pigment is selected from one of iron blue, lithopone and lead chrome yellow.
Preferably, the dispersing agent is one or more selected from polyacrylate dispersing agents, sodium dodecyl sulfate, polyacrylamide and fatty acid polyethylene glycol esters.
Preferably, the solvent is selected from one or more of ethyl acetate, dodecyl alcohol ester, dimethyl succinate, dimethyl adipate, propylene glycol methyl ether acetate and the like.
The application also provides a preparation method of the energy-saving ceramic coating slurry, which comprises the following steps:
mixing fluorine-containing polysilazane resin with an organic solvent according to the mass parts, adding far-infrared radiation powder, a dispersing agent and pigment under the stirring condition, and transferring the slurry into a ball milling tank to be milled until the particle size is less than 100 nanometers after the slurry is uniformly dispersed.
Preferably, the ball milling tank grinding procedure is: 350r/min, and stopping for 10min after rotating forward for 30 min. Reversing for 30min, stopping for 10min, and circulating for 4 times.
The application also provides a coating obtained by curing the energy-saving ceramic coating slurry.
Preferably, the coating has the following properties:
thickness: 200-300 micrometers;
the adhesive force is 0 grade;
the pencil hardness is more than 7H;
thermal conductivity: 10-15 w/m.k;
emissivity: 0.90 to 0.92;
the use temperature is as follows: 200-1800 ℃.
The application also provides a preparation method of the energy-saving ceramic coating, which comprises the following steps:
1) Firstly, preparing energy-saving ceramic coating slurry;
2) And (3) coating the slurry obtained in the step (1) on the surface of a substrate, and curing to prepare the energy-saving ceramic coating.
Preferably, in step 2), the curing temperature is 240-300 ℃ and the curing time is 0.5-72 h.
Compared with the prior art, the application has the following beneficial effects:
(1) The preparation process of the energy-saving ceramic coating slurry is simple, the energy-saving ceramic coating slurry is suitable for various coating modes, and the specific polysilazane resin and nano-microparticle technology changes the combination mechanism and surface mechanical properties of the ceramic coating and a substrate, so that the coating and the substrate are tightly combined in a similar complex mode, and the energy-saving ceramic coating slurry has the comprehensive characteristics of contamination and slag bonding resistance, corrosion resistance, abrasion resistance and the like.
(2) The coating formed by curing the energy-saving ceramic coating slurry has stable and adjustable high emissivity in a wide band range, does not decay with time, and greatly improves the heat utilization rate.
(3) The coating formed by solidifying the energy-saving ceramic coating slurry does not fall off under the condition of repeatedly heating and cooling 5000 times.
Detailed Description
The application will be further illustrated with reference to specific examples. It is understood that these examples are provided only for illustrating the present application and are not intended to limit the scope of the present application. Further, it is understood that various changes and modifications of the present application may be made by those skilled in the art after reading the disclosure of the present application, and such equivalents are intended to fall within the scope of the present application as defined by the appended claims.
The methods are conventional methods unless otherwise specified, and the starting materials are commercially available from the public sources unless otherwise specified.
The fluorine-containing polysilazane resin used in the coating in the following examples was prepared by itself according to the prior art, and the fluorine-containing polysilazane resin was numbered OPZ to 96F, and the structural unit was
Wherein x: y: z=75:15:6.
The polysilazane resin of comparative example 1 was a commercially available IOTA-9150K, available from Anhui Aijia silicone oil Co.
The fluorine-containing polysilazane resin is numbered PSN-2F, and the structural unit is
Wherein x: y: z=50:5:1.
Polyacrylamide dispersant powder, available from Chengdu Wanrida chemical Co.
Propylene glycol methyl ether acetate, available from ataxia chemical industry limited.
Unless otherwise specified, the raw materials and auxiliary agents used in the different schemes are the same.
Example 1
60 parts by mass of fluorine-containing polysilazane resin (OPZ-96F) is weighed, 65 parts by mass of propylene glycol methyl ether acetate is adopted to dissolve the fluorine-containing polysilazane resin, a fluorine-containing polysilazane resin solution is prepared, 30 parts by mass of far infrared radiation powder, 2 parts by mass of polyacrylamide dispersant powder and 3 parts by mass of lithopone are weighed, uniformly dispersed in the fluorine-containing polysilazane resin solution, and ball milling is carried out by a ball milling tank until the fineness of the paint is less than 100 nanometers for later use. The ceramic coating is coated on a clean-surface cooked iron plate by adopting a spraying method, and is cured for 4 hours in a baking oven at 260 ℃, wherein the thickness of the cooked iron plate is 2mm, and the energy-saving ceramic coating is obtained after the curing is finished, and the thickness of the energy-saving ceramic coating is 240 microns. The properties of the energy-saving ceramic coating are shown in Table 1.
Examples 2-4 and comparative example 1 were carried out as described in example 1, except for the type and amount of polysilazane resin, and the amounts of other raw materials.
Adhesive force test (cross-hatch method), spraying the finished product on an iron plate, solidifying for 1 hour at 240 ℃, cooling and placing for 2 hours, cross-hatch, and testing with 3M adhesive tape.
Coating heat-cold cycle test:
the cooked iron plate with the energy-saving ceramic coating is heated to 800 ℃, then naturally cooled to 20 ℃ and whether the coating is cracked and/or fallen off is detected by naked eyes.
TABLE 1 raw material composition and Performance test of energy-saving ceramic coating
The inventors are unaware of the exact physicochemical mechanism, but the solutions of examples 1-3 of the present application result in energy-saving ceramic coating products that have excellent adhesion and are less prone to cracking and/or falling off upon repeated heating and cooling.
The energy-saving effect testing method comprises the following steps:
1. experimental materials
2 cooked iron pans, 500g of energy-saving ceramic paint, 2 mercury thermometers and 2 electric heating furnaces.
2. Experimental procedure
2.1 non-stick pan surface cleaning and spraying
The outer surfaces of the 2 non-stick cookers are cleaned by alcohol wiping, and the cookers A and B are numbered respectively. The energy-saving ceramic paint prepared in the example 1 is uniformly sprayed on the outer surface of the pot A, and then the pot A is placed in a baking oven at 280 ℃ for 60 minutes to cure the coating. After cooling to room temperature, the coating was 300 μm thick.
2.2 Water boiling test
Pot a and pot B were each filled with 1kg of tap water and placed on an electric heating table. Meanwhile, 2 mercury thermometers are suspended in water, and the real-time temperature of tap water in the pot is tested. At the same time, 2 electric heaters are turned on, and when the water temperature reaches 100 ℃, the time for the water to reach 100 ℃ from normal temperature is recorded.
3. Experimental results
The time for heating water from normal temperature to 100 ℃ in pot A is 20% less than that in pot B, and the experimental result shows that the energy-saving ceramic coating can obviously improve the heat utilization rate.
The embodiments of the present application have been described above. However, the present application is not limited to the above embodiment. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. The energy-saving ceramic coating slurry is characterized by comprising the following components in parts by mass:
60-85 parts of fluorine-containing polysilazane resin;
30-35 parts of far infrared radiation powder;
3-6 parts of pigment;
2-8 parts of dispersing agent;
65-80 parts of organic solvent.
2. The slurry of claim 1, wherein the fluorine-containing polysilazane resin comprises the structural units:wherein x: y: z=75:15:6.
3. The paste according to claim 1, wherein the pigment is selected from one of iron blue, lithopone, and lead chrome yellow.
4. The slurry according to claim 1, wherein the dispersant is one or more selected from the group consisting of polyacrylate dispersants, sodium lauryl sulfate, polyacrylamide, and fatty acid polyglycol esters.
5. The slurry according to claim 1, wherein the solvent is selected from one or more of ethyl acetate, dodecyl alcohol ester, dimethyl succinate, dimethyl adipate, propylene glycol methyl ether acetate, and the like.
6. A method for preparing the energy-saving ceramic coating slurry according to any one of claims 1 to 5, comprising the steps of: mixing fluorine-containing polysilazane resin with an organic solvent according to the mass parts, adding far-infrared radiation powder, a dispersing agent and pigment under the stirring condition, and transferring the slurry into a ball milling tank to be milled until the particle size is less than 100 nanometers after the slurry is uniformly dispersed.
7. The method of claim 6, wherein the ball milling pot milling procedure is: 350r/min, and stopping for 10min after rotating forward for 30 min. Reversing for 30min, stopping for 10min, and circulating for 4 times.
8. An energy-saving ceramic coating obtained by curing the energy-saving ceramic coating slurry according to any one of claims 1 to 5.
9. The coating of claim 8, wherein the coating has the following properties:
thickness: 200-300 micrometers;
the adhesive force is 0 grade;
the pencil hardness is more than 7H;
thermal conductivity: 10-15 w/m.k;
emissivity: 0.90 to 0.92;
the use temperature is as follows: 200-1800 ℃.
10. The method for preparing the energy-saving ceramic coating according to claim 8, wherein the method comprises the following steps:
1) Preparing energy-saving ceramic coating slurry;
2) Coating the slurry obtained in the step 1) on the surface of a substrate, and curing to prepare the energy-saving ceramic coating; and the curing temperature is 240-300 ℃ and the curing time is 0.5-72 h.
Priority Applications (1)
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014065814A (en) * | 2012-09-26 | 2014-04-17 | Ishihara Chemical Co Ltd | Coating agent for coating surface of vehicle |
| CN108707420A (en) * | 2018-04-03 | 2018-10-26 | 广东工业大学 | A kind of cured polysilazane coating of room-temperature plasma and its preparation method and application |
| CN114561149A (en) * | 2022-03-11 | 2022-05-31 | 江西师范大学 | Superhard polysilazane easy-to-clean coating and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014065814A (en) * | 2012-09-26 | 2014-04-17 | Ishihara Chemical Co Ltd | Coating agent for coating surface of vehicle |
| CN108707420A (en) * | 2018-04-03 | 2018-10-26 | 广东工业大学 | A kind of cured polysilazane coating of room-temperature plasma and its preparation method and application |
| CN114561149A (en) * | 2022-03-11 | 2022-05-31 | 江西师范大学 | Superhard polysilazane easy-to-clean coating and preparation method thereof |
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