CN115595024A - Composite non-stick coating, preparation method thereof and cooking utensil - Google Patents
Composite non-stick coating, preparation method thereof and cooking utensil Download PDFInfo
- Publication number
- CN115595024A CN115595024A CN202110771383.2A CN202110771383A CN115595024A CN 115595024 A CN115595024 A CN 115595024A CN 202110771383 A CN202110771383 A CN 202110771383A CN 115595024 A CN115595024 A CN 115595024A
- Authority
- CN
- China
- Prior art keywords
- stick
- coating
- ceramic powder
- entropy ceramic
- composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 299
- 239000011248 coating agent Substances 0.000 title claims abstract description 290
- 239000002131 composite material Substances 0.000 title claims abstract description 170
- 238000010411 cooking Methods 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000000919 ceramic Substances 0.000 claims abstract description 253
- 239000000843 powder Substances 0.000 claims abstract description 226
- 229910052751 metal Inorganic materials 0.000 claims abstract description 52
- 239000002184 metal Substances 0.000 claims abstract description 45
- 239000000945 filler Substances 0.000 claims abstract description 16
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 12
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 12
- 150000004767 nitrides Chemical class 0.000 claims abstract description 10
- 229910021332 silicide Inorganic materials 0.000 claims abstract description 10
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052745 lead Inorganic materials 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 110
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 48
- 229910052731 fluorine Inorganic materials 0.000 claims description 48
- 239000011737 fluorine Substances 0.000 claims description 48
- 239000002245 particle Substances 0.000 claims description 30
- 239000002344 surface layer Substances 0.000 claims description 30
- 238000005524 ceramic coating Methods 0.000 claims description 28
- 239000003973 paint Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 22
- 239000002904 solvent Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 239000002002 slurry Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 3
- 230000002045 lasting effect Effects 0.000 abstract description 10
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 230000000994 depressogenic effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 38
- 230000000694 effects Effects 0.000 description 37
- 230000000052 comparative effect Effects 0.000 description 36
- 239000011247 coating layer Substances 0.000 description 14
- 238000005299 abrasion Methods 0.000 description 10
- 230000007797 corrosion Effects 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 10
- 238000004088 simulation Methods 0.000 description 10
- 239000003921 oil Substances 0.000 description 9
- 239000006104 solid solution Substances 0.000 description 9
- 229910045601 alloy Inorganic materials 0.000 description 8
- 239000000956 alloy Substances 0.000 description 8
- 238000000498 ball milling Methods 0.000 description 8
- 238000005245 sintering Methods 0.000 description 8
- 238000010998 test method Methods 0.000 description 8
- 229910010293 ceramic material Inorganic materials 0.000 description 7
- 235000013601 eggs Nutrition 0.000 description 7
- 125000004429 atom Chemical group 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- -1 Polytetrafluoroethylene Polymers 0.000 description 5
- 239000000470 constituent Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000009991 scouring Methods 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 238000002490 spark plasma sintering Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- YOALFLHFSFEMLP-UHFFFAOYSA-N azane;2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctanoic acid Chemical compound [NH4+].[O-]C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YOALFLHFSFEMLP-UHFFFAOYSA-N 0.000 description 2
- 239000002199 base oil Substances 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 239000008199 coating composition Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000003746 solid phase reaction Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 239000000080 wetting agent Substances 0.000 description 2
- KHXKESCWFMPTFT-UHFFFAOYSA-N 1,1,1,2,2,3,3-heptafluoro-3-(1,2,2-trifluoroethenoxy)propane Chemical compound FC(F)=C(F)OC(F)(F)C(F)(F)C(F)(F)F KHXKESCWFMPTFT-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241001125843 Trichiuridae Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 238000005049 combustion synthesis Methods 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 235000013606 potato chips Nutrition 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000015067 sauces Nutrition 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 235000014102 seafood Nutrition 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 235000013555 soy sauce Nutrition 0.000 description 1
- 238000005118 spray pyrolysis Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000758 substrate 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
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
- A47J36/025—Vessels with non-stick features, e.g. coatings
-
- 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
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/04—Homopolymers or copolymers of ethene
- C09D123/08—Copolymers of ethene
- C09D123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C09D123/0892—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms containing monomers with other atoms than carbon, hydrogen or 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
- 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
- C09D183/04—Polysiloxanes
-
- 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
Abstract
The application relates to a composite non-stick coating, a preparation method thereof and a cooking utensil, wherein the composite non-stick coating comprises a non-stick coating and a filler, the filler comprises high-entropy ceramic powder, and the high-entropy ceramic powder comprises at least one of composite metal oxide, composite metal nitride, composite metal carbide, composite metal boride and composite metal silicide; the metal elements in the high-entropy ceramic powder comprise at least four of Mg, al, sc, ti, V, cr, mn, fe, co, ni, cu, zn, zr, nb, mo, sn, hf, ta, W or Pb. The application provides a compound non-stick coating and preparation method and cooking utensil thereof, owing to added high entropy ceramic powder in current non-stick coating, bellied high entropy ceramic powder hardness is high, the wearability is good, can effectively prevent that the coating of depressed part from being destroyed, effectively improves compound non-stick coating and lasting non-stick nature, and then improves cooking utensil's life.
Description
Technical Field
The application relates to the technical field of coatings, in particular to a composite non-stick coating, a preparation method thereof and a cooking utensil.
Background
The existing cookware without sticking to the pot is generally prepared by coating a composite non-stick coating on the surface of a substrate, the common composite non-stick coating comprises a fluorine-containing coating, a ceramic coating and the like, in the prior art, the fluorine-containing coating has the defects of non-wear resistance, easy scratch and damage, no high temperature resistance and easy aging and color change, the non-stick life is not more than 1 year, the existing DuPont coating is added with silicon carbide powder to increase the wear resistance of the composite non-stick coating, although the addition of the silicon carbide increases the non-stick life of the coating, raised silicon carbide particles are leaked out after being worn, the silicon carbide does not have non-stick property, and the whole non-stick property is reduced. The ceramic coating has poorer non-stick effect than fluorine coating, has poor lasting non-stick property, and is easy to fall off after being used for 3 to 6 months generally.
Disclosure of Invention
This application is in order to overcome above-mentioned defect, and this application provides compound non-stick coating and preparation method and cooking utensil thereof can effectively improve cooking utensil's lasting non-stick nature, improves cooking utensil's life.
In a first aspect, embodiments of the present application provide a composite non-stick coating, which includes a non-stick coating and a filler, where the filler includes a high-entropy ceramic powder, and the high-entropy ceramic powder includes at least one of a composite metal oxide, a composite metal nitride, a composite metal carbide, a composite metal boride, and a composite metal silicide; the metal elements in the high-entropy ceramic powder comprise at least four of Mg, al, sc, ti, V, cr, mn, fe, co, ni, cu, zn, zr, nb, mo, sn, hf, ta, W or Pb.
In the scheme, the composite non-stick coating comprises the high-entropy ceramic powder, the radii of all constituent elements in the high-entropy ceramic powder are different, all element atoms occupy all lattice positions with the same chance, so that distortion is caused, the dislocation motion resistance can be increased due to the lattice distortion, the strength and the hardness are obviously increased, and the elements can interact with each other, so that the high-entropy composite material presents a composite effect in the composite non-stick coating, and the wear resistance of the composite non-stick coating is further improved.
In a possible embodiment, in combination with the first aspect, the composite non-stick coating comprises at least one of the following features a to c:
a. the molar content of each metal element in the high-entropy ceramic powder is 5-35%;
b. the average grain diameter of the high-entropy ceramic powder is 300-2000 meshes;
c. the average grain diameter of the high-entropy ceramic powder is 500-1500 meshes.
In the scheme, the molar content of each element is controlled to be 5-35% so as to ensure the multi-principal-element characteristics of the alloy and improve the disorder degree of the alloy structure. The average grain size of the high-entropy ceramic powder is 300-2000 meshes, in the range, the material flow is good in the preparation process, the construction is convenient, and the optimal scheme is 500-1500 meshes, so that the surface of a coating prepared by the coating is smooth and uniformly dispersed.
In one possible embodiment in combination with the first aspect, the non-stick coating comprises a fluorine-containing coating or a ceramic coating.
In the scheme, the high-entropy ceramic powder can be added into the fluorine-containing paint or the ceramic paint, so that the applicability is strong, and the non-stick property of the fluorine-containing paint can be improved.
In combination with the first aspect, in one possible embodiment, the composite non-stick coating comprises at least one of the following features a to b:
a. when the non-stick coating is a fluorine-containing coating, the content of the high-entropy ceramic powder is 1-20% of the total mass of the composite non-stick coating;
b. when the non-stick coating is a ceramic coating, the content of the high-entropy ceramic powder is 8-20% of the total mass of the composite non-stick coating.
In the technical scheme, the proportion of the high-entropy ceramic powder in the composite non-stick coating is controlled, so that the composite non-stick coating has high strength, high hardness and non-stick property, and can meet the heat resistance, weather resistance and self-cleaning function of the composite non-stick coating; when the mass ratio of the high-entropy ceramic powder is too high, the film-forming performance of the composite non-stick coating is influenced, so that the coating becomes brittle, and the binding force is reduced; when the mass ratio of the high-entropy ceramic powder is too low, the hardness, strength and corrosion resistance of the composite non-stick coating are greatly reduced, and the effect of prolonging the lasting non-stick life cannot be achieved.
In a second aspect, the present application provides a method for preparing a composite non-stick coating, including the following steps:
adding the high-entropy ceramic powder into the non-stick coating, and stirring and dispersing uniformly to obtain the composite non-stick coating.
In the scheme, the composite non-stick coating is made of high-entropy ceramic powder, the high-entropy ceramic powder can form a solid solution with high purity, the solid solution strengthening effect of the solid solution can obviously improve the strength and hardness of the composite non-stick coating, the microscopic lattice distortion of the high-entropy ceramic powder can also improve the hardness and strength of the composite non-stick coating, and the non-stick property of the composite non-stick coating can be improved. Meanwhile, the proportion of the high-entropy ceramic powder in the composite non-stick coating is controlled, so that the composite non-stick coating has high strength, high hardness and non-stick property, and can meet the heat resistance, weather resistance and self-cleaning function of the composite non-stick coating, and the high-entropy ceramic powder content influences the film-forming property of the composite non-stick coating, so that the coating becomes brittle and the binding force is reduced; if the content of the high-entropy ceramic powder is too low, the effect of prolonging the durable non-stick life cannot be achieved.
With reference to the second aspect, in one possible embodiment, the non-stick coating is a fluorine-containing coating or a ceramic coating, wherein, when the fluorine-containing coating is adopted, the content of the high-entropy ceramic powder is 1% to 20% of the total mass of the composite non-stick coating; when the ceramic coating is adopted, the content of the high-entropy ceramic powder is 8-20% of the total mass of the composite non-stick coating.
In the scheme, the proportion of the high-entropy ceramic powder in the composite non-stick coating is controlled simultaneously, so that the composite non-stick coating has high strength, high hardness and non-stick property, and can meet the heat resistance, weather resistance and self-cleaning function of the composite non-stick coating, and the high-entropy ceramic powder content influences the film-forming property of the composite non-stick coating, so that the coating becomes brittle and the binding force is reduced; if the content of the high-entropy ceramic powder is too low, the effect of prolonging the durable non-stick life cannot be achieved.
With reference to the second aspect, in a possible embodiment, the method includes at least one of the following features a to b:
a. the average grain diameter of the high-entropy ceramic powder is 300-2000 meshes;
b. the average grain diameter of the high-entropy ceramic powder is 300-2000 meshes;
in the scheme, the average grain size of the high-entropy ceramic powder is 300-2000 meshes, the material flow is good in the preparation process in the range, the construction is convenient, and the preferable scheme is 500-1500 meshes, so that the surface of a coating prepared by the coating is smooth and uniformly dispersed.
In combination with the second aspect, in one possible embodiment, the manner of adding the high-entropy ceramic powder to the fluorine-containing coating material includes the following two:
a. directly adding the high-entropy ceramic powder;
b. grinding and dispersing the high-entropy ceramic powder and a solvent into slurry, and adding the slurry, wherein the mass ratio of the high-entropy ceramic powder to the solvent is 1: (1.2-2.5).
In the technical scheme, the high-entropy ceramic powder is added into the fluorine-containing paint or the ceramic paint in a powder or slurry mode, the excellent performances of the high-entropy ceramic powder and the fluorine-containing paint or the ceramic paint are combined, and when the high-entropy ceramic powder is added in a slurry mode, the solvent is the same as the solvent used by the fluorine-containing paint or the ceramic paint, so that the adverse effect of introducing a new solvent on the paint is avoided.
In a third aspect, an embodiment of the application provides a cooking appliance, which comprises a pot body, wherein a non-stick coating is arranged on the inner surface of the pot body, and the non-stick coating is made of a composite non-stick coating; the composite non-stick coating comprises a non-stick coating and a filler; the filler comprises high-entropy ceramic powder, and the metal elements in the high-entropy ceramic powder comprise at least four of Mg, al, sc, ti, V, cr, mn, fe, co, ni, cu, zn, zr, nb, mo, sn, hf, ta, W or Pb.
In the scheme, the high-entropy ceramic powder is added into the composite non-stick coating, and due to the fact that the atomic radii of the high-entropy ceramic are different, the disorder of a microstructure of a material is improved, so that dislocation inside crystal lattices is inhibited, lattice distortion is generated, the high entropy of the high-entropy ceramic obviously reduces free energy, the high-entropy ceramic has lower surface energy, the non-stick effect can be enhanced, and the wear resistance of the composite non-stick coating can be further improved.
With reference to the third aspect, in a possible embodiment, the cooking appliance comprises at least one of the following features a to e:
a. the high-entropy ceramic powder comprises at least one of composite metal oxide, composite metal nitride, composite metal carbide, composite metal boride and composite metal silicide;
b. the molar content of each metal element in the high-entropy ceramic powder is 5-35%;
c. the average grain diameter of the high-entropy ceramic powder is 300-2000 meshes;
d. the average grain diameter of the high-entropy ceramic powder is 500-1500 meshes;
e. the non-stick coating is any one of fluorine-containing coating and ceramic coating.
In the scheme, the high-entropy ceramic powder can form a solid solution with higher purity, the solid solution strengthening effect of the solid solution can obviously improve the strength and the hardness of the composite non-stick coating, the microscopic lattice distortion of the high-entropy ceramic powder can also improve the hardness and the strength of the composite non-stick coating, and the corrosion resistance of the composite non-stick coating can be improved. In addition, the atomic radiuses of all the constituent elements in the high-entropy ceramic powder are different, all the element atoms occupy all the lattice positions with equal opportunity, so that distortion is caused, the dislocation motion resistance can be increased due to the lattice distortion, the strength and the hardness are obviously increased, and the elements can interact with each other, so that the high-entropy composite material presents a composite effect in the composite non-stick coating. The mol content of each element is controlled between 5 percent and 35 percent to ensure the multi-principal element characteristic of the alloy and improve the disorder degree of the alloy structure. Too fine high-entropy ceramic powder particles have an insignificant wear-resistant effect, and the cost is increased, and too coarse high-entropy ceramic powder particles cause a rough coating surface, and the particles are easily broken off. The addition of high-entropy ceramic powder into the fluorine-containing coating or the ceramic coating can prolong the durability and non-stick property of the coating.
In combination with the third aspect, in one possible embodiment, the non-stick coating containing the fluorine-containing paint comprises at least one of the following features a to c:
a. the non-stick coating comprises a non-stick surface layer and a non-stick bottom layer;
b. the non-stick coating comprises a non-stick surface layer, a non-stick middle layer and a non-stick bottom layer;
c. the non-stick coating comprises a non-stick surface layer, a non-stick middle layer and a non-stick bottom layer, and the average particle size of high-entropy ceramic powder in the composite non-stick coating for forming the non-stick bottom layer is larger than that of the high-entropy ceramic powder in the composite non-stick coating for forming the non-stick middle layer.
In the scheme, the non-stick coating of the fluorine-containing coating is a two-layer system or a three-layer system, and the high-entropy ceramic powder with different particle sizes is added into the non-stick bottom layer and the non-stick middle layer, so that the bonding strength between the non-stick bottom layer and a pot body is improved, and the non-stick durability of the non-stick surface layer is improved.
With reference to the third aspect, in one possible embodiment, the non-stick coating satisfies at least one of the following conditions a to d:
a. the average grain diameter of the high-entropy ceramic powder in the non-stick bottom layer is 500-800 meshes;
b. the average grain diameter of the high-entropy ceramic powder in the non-stick middle layer is 800-1500 meshes;
c. the content of the high-entropy ceramic powder is 5-15% of the total mass of the non-stick bottom layer;
d. the content of the high-entropy ceramic powder is 5-10% of the total mass of the non-stick surface layer.
In the scheme, the non-stick bottom layer mainly plays roles in wear resistance and corrosion resistance, the content of the high-entropy ceramic powder is 5% -15% of the total mass of the non-stick bottom layer, the composite non-stick coating can well take the performances of the fluorine-containing coating and the high-entropy ceramic powder into consideration, the content of the high-entropy ceramic powder is too high, the film forming performance of the coating can be influenced, the adhesion is poor, and the content of the high-entropy ceramic powder is too low, so that the effect of prolonging the lasting non-stick life cannot be achieved. Because the non-stick bottom layer mainly plays a role in corrosion resistance and wear resistance, larger particles are required to be filled in the coating, namely the particle size of the high-entropy ceramic powder is controlled to be 500-800 meshes, powder materials with too fine particle sizes are wrapped in resin to play a non-stick role, and powder materials with too coarse particle sizes influence the overall appearance.
The non-stick middle layer mainly has the functions of adjusting color and certain non-stick property, the content of the high-entropy ceramic powder is 5% -10% of the total mass of the non-stick middle layer, the composite non-stick coating can well take the performances of the fluorine-containing coating and the high-entropy ceramic powder into consideration, the high-entropy ceramic powder is too high, the film forming performance of the coating can be influenced, the adhesion is poor, and the high-entropy ceramic powder is too low, so that the effect of prolonging the durable non-stick life cannot be achieved. Because the non-stick middle layer mainly plays a role in adjusting color and certain non-stick property, the granularity of the high-entropy ceramic powder is controlled to be 800 meshes-1500 meshes.
With reference to the third aspect, in a possible embodiment, the non-stick coating satisfies at least one of the following conditions a to c:
a. the thickness of the non-stick coating is 30-50 um;
b. the thickness of the non-stick bottom layer is 20-25 um;
c. the thickness of the non-stick middle layer is 10-15 um.
In the scheme, the thickness of the non-stick coating is too large, so that not only is the cost increased, but also the bonding force of the coating is reduced; the thickness of the non-stick coating is too small and the non-stick effect is deteriorated. The thin non-stick bottom layer is arranged, so that the binding force between the whole non-stick composite layer and the pot body is improved; by arranging the thicker non-stick surface layer, the non-stick durability and the wear resistance of the cooking utensil are improved.
With reference to the third aspect, in one possible embodiment, the non-stick coating containing said ceramic paint comprises at least one of the following features a to b:
a. the non-stick coating comprises a non-stick bottom layer;
b. the non-stick coating comprises a non-stick surface layer and a non-stick bottom layer.
In the scheme, the non-stick coating is a single-layer system or a two-layer system, and the high-entropy ceramic powder with different particle sizes is added into the non-stick bottom layer and/or the non-stick surface layer, so that the bonding strength of the non-stick bottom layer and the pot body is improved, and the non-stick durability of the non-stick middle layer is improved.
With reference to the third aspect, in one possible embodiment, the non-stick coating satisfies at least one of the following conditions a to d:
a. the average grain diameter of the high-entropy ceramic powder in the non-stick bottom layer is 500-600 meshes;
b. the average grain diameter of the high-entropy ceramic powder in the non-stick surface layer is 600-1000 meshes;
c. the content of the high-entropy ceramic powder is 10-15% of the total mass of the non-stick bottom layer;
d. the content of the high-entropy ceramic powder is 3-8% of the total mass of the non-stick surface layer.
In the scheme, the non-stick bottom layer mainly plays roles of wear resistance, corrosion resistance and certain non-stick property, so that the content of the high-entropy ceramic powder is controlled to be 10% -15% of the total mass of the non-stick bottom layer, the surface oil of the non-stick surface layer is thinner, the color and certain non-stick property are mainly adjusted, the content of the non-stick surface layer is slightly smaller, the content of the high-entropy ceramic powder is controlled to be 3% -8% of the total mass of the non-stick bottom layer, the parameters are controlled within a reasonable range, the composite non-stick coating can well give consideration to the performances of the existing coating and the high-entropy ceramic powder, the content of the high-entropy ceramic powder is too high, the film forming performance of the coating can be influenced, the coating becomes brittle, and the content of the high-entropy ceramic powder is too low, so that the effect of prolonging the lasting non-stick life cannot be achieved. Because the non-stick bottom layer mainly plays a role in corrosion resistance, wear resistance and certain non-stick property, larger particles are required to be filled in the coating, namely the particle size of the high-entropy ceramic powder is controlled to be 500-600 meshes, the non-stick surface layer mainly plays a role in color adjustment and certain non-stick property, the particle size of the high-entropy ceramic powder is required to be controlled to be smaller, generally 600-1000 meshes are selected, powder materials with too fine mesh particle size are wrapped in resin to play a non-stick role, and powder materials with too coarse particle size influence the overall appearance.
With reference to the third aspect, in a possible embodiment, the non-stick coating satisfies at least one of the following conditions a to c:
a. the thickness of the non-stick coating is 25 um-40 um;
b. the thickness of the non-stick bottom layer is 15-25 um;
c. the thickness of the non-stick surface layer is 10-15 um.
In the scheme, the thickness of the non-stick coating is too large, so that not only is the cost increased, but also the bonding force of the coating is reduced; the thickness of the non-stick coating is too small and the non-stick effect is deteriorated.
Compared with the prior art, the technical scheme at least has the following technical effects:
this application is through in adding other coatings except the non-stick surface course in the current non-stick coating with high entropy ceramic powder, bellied high entropy ceramic powder material hardness is good, the wearability is good, can prevent effectively that the recess coating from being destroyed, when current coating bellied surface oil wearing and tearing, after the dropout, expose the rete that contains high entropy ceramic powder powdered ink to the non-stick effect of high entropy ceramic powder is exert, the lasting non-stick life of current coating and cooking utensil is prolonged.
Detailed Description
In order to better understand the technical solution of the present application, the following detailed description is made with reference to the embodiments. It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The present application is described in further detail below with specific examples.
In a first aspect, embodiments of the present application provide a composite non-stick coating, which includes a non-stick coating and a filler, where the filler includes a high-entropy ceramic powder, the non-stick coating includes a ceramic coating or a fluorine-containing coating, and the high-entropy ceramic powder includes at least one of a composite metal oxide, a composite metal nitride, a composite metal carbide, a composite metal boride, and a composite metal silicide; the metal elements in the high-entropy ceramic powder comprise at least four of Mg, al, sc, ti, V, cr, mn, fe, co, ni, cu, zn, zr, nb, mo, sn, hf, ta, W or Pb.
In the scheme, the composite non-stick coating comprises fluorine-containing coating or ceramic coating, wherein the fluorine-containing coating can be Polytetrafluoroethylene (PTFE), perfluorooctanoic acid ammonium (PFOA), copolymer PFA of perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene, polyperfluoroethylene propylene copolymer, ethylene-tetrafluoroethylene copolymer ETFE and the like. The ceramic coating may be, for example, polymethylsiloxane, nanosilica, or the like.
The composite metal oxide may specifically be (TiFeCoNi) O, (AlFeCoNi) O, (MgCoNiCuZn) O, (AlCrTaTiZr) O, (AlCoCrCuFeNi) O, or the like; the composite metal nitride may be (AlCoCrCuFeMnNi) N, (AlCrTaTiZr) N, (AlCrSiTiV) N, (AlCoCrCuFeNi) N, etc.; the composite metal carbide may specifically be (TiZrNbTaMo) C, (TiZrNbTaW) C, (ZrNbTa) C, (HfTaZrTi) C, or the like; the composite metal boride may specifically be (HfTaTiVZr) B 2 (ii) a The composite metal silicide can be (AlCrNiTiFe) Si, (MoNbTaTiW) Si, etc.; and are not limited herein. The lattice distortion effect of the high-entropy ceramics caused by the difference of atomic radii of different elements causes the alloyThe microstructure is higher in disorder degree, and generates non-crystallizing tendency, so that the material has lower surface energy compared with common materials, and generates non-sticky effect. Moreover, the radii of all constituent elements in the high-entropy ceramic powder are different, all element atoms occupy all lattice positions with the same chance to cause distortion, the dislocation motion resistance can be increased by the distortion of the lattice, the strength and the hardness are obviously increased, and the elements can interact with each other, so that the high-entropy composite material presents a composite effect in the composite non-stick coating, and the non-stick property of the composite non-stick coating is further improved.
Optionally, the preparation method of the high-entropy ceramic powder comprises the following steps: the composite metal oxide can be prepared by any one of a solid-phase reaction method, a spray pyrolysis method, a flame pyrolysis method, a coprecipitation method, or a solution combustion synthesis method; the composite metal carbide, the composite metal nitride, the composite metal boride and the composite metal silicide may be prepared by any one of a spark plasma sintering method, a carbothermic method or a self-sustaining reaction method.
Specifically, taking a solid-phase reaction method as an example to prepare the high-entropy ceramic powder of the composite metal oxide, the preparation method comprises the following steps:
step a, according to the metal molar ratio of 1:1:1:1 or 1:1:1:1:1, respectively weighing 4 or 5 required metal oxide powders;
b, mixing and ball-milling the metal oxide powder weighed in the step a in a reverse direction, wherein planetary ball milling can be adopted, the rotating speed of a ball mill is 50 r/min-80 r/min, and the ball milling time is 10 h-50 h;
and c, sintering the powder subjected to ball milling in the step b in a muffle furnace, wherein the sintering atmosphere is air atmosphere, the heating rate is 2-5 ℃/min, the temperature is increased to 1500 ℃, the temperature is kept for 15-20 h, and the powder is taken out, quenched, crushed and screened to obtain the high-entropy ceramic powder.
Specifically, taking the spark plasma sintering method as an example to prepare other types of high-entropy ceramic powder, the specific preparation method is as follows:
step a, according to the molar ratio of metal atoms as 1:1:1:1 or 1:1:1:1:1, respectively weighing 4 or 5 required metal carbide, nitride, boride and silicide powders, and then fully mixing on a powder mixer;
b, pouring the slurry mixed in the step a into a ball milling tank, and adding alcohol and grinding balls into the ball milling tank for ball milling;
c, placing the slurry subjected to ball milling in the step b into an oven for drying, and sieving the dried powder;
and d, pouring the powder sieved in the step c into a mold, and then placing the powder into an SPS sintering furnace for SPS sintering, wherein the sintering pressure of the first stage is 15-25 MPa, the sintering temperature is 1550-1580 ℃, the sintering pressure of the second stage is 85-90 MPa, the sintering temperature is 1700-1730 ℃, and the heat preservation time is 2-4 h, wherein the whole temperature rise rate is 100-125 ℃/min, and the pressure rise rate is 60-80 MPa/min.
And e, quenching, crushing and screening the powder obtained in the step d to obtain the high-entropy ceramic powder.
As an optional scheme of the application, the content of the high-entropy ceramic powder is 1-20% of the total mass of the composite non-stick coating.
In the scheme, the mass ratio of the high-entropy ceramic powder in the composite non-stick coating is controlled, so that the composite non-stick coating has high strength, high hardness and non-stick property, and can meet the heat resistance, weather resistance and self-cleaning function of the composite non-stick coating; specifically, the content of the high-entropy ceramic powder can be 1%, 3%, 5%, 7%, 9%, 11%, 15%, 18%, 20% and the like of the total mass of the composite non-stick coating, and is not limited herein, and when the mass ratio of the high-entropy ceramic powder is too high, the film forming performance of the composite non-stick coating is affected, so that the coating becomes brittle, and the binding force is reduced; when the mass ratio of the high-entropy ceramic powder is too low, the hardness, strength and corrosion resistance of the composite non-stick coating are greatly reduced, and the effect of prolonging the lasting non-stick life cannot be achieved.
As an optional technical scheme of the application, the molar content of each metal element in the high-entropy ceramic powder is 5-35%; the average grain diameter of the high-entropy ceramic powder is 300-2000 meshes; the average grain diameter of the high-entropy ceramic powder is 500-1500 meshes.
In the scheme, the molar content of each element is controlled to be between 5% and 35% to ensure the multi-principal-element characteristics of the alloy, the disorder degree of the alloy structure can be improved, understandably, the mass proportion of the added high-entropy ceramic powder is less than 5%, the wear-resisting effect is not obvious, the mass proportion of the added high-entropy ceramic powder is more than 35%, the influence on a composite non-stick coating system is large, the bonding strength of a coating is reduced, the atomic radiuses of all the constituent elements in the high-entropy ceramic powder are different, all the element atoms occupy all lattice positions with equal opportunity, the distortion is caused, the lattice distortion can increase the dislocation motion resistance, the strength and the hardness are obviously increased, and the elements can interact with each other to enable the high-entropy composite material to have a composite effect in the composite non-stick coating, so that the average grain size of the high-entropy ceramic powder is 300 meshes to 2000 meshes, specifically, the average grain size can be 300 meshes, 400 meshes, 500 meshes, 600 meshes, 700 meshes, 800 meshes, 900 meshes, 1000 meshes, 1100 meshes, 1200 meshes, 1300 meshes, 1400 meshes, 1600 meshes, 1700 meshes, 1900 and 2000 meshes and the like, which are not limited. Within the range, the material flow in the preparation process is good, the construction is convenient, and the preferable scheme is 500-1500 meshes, so that the surface of the coating prepared by the coating is smooth and is uniformly dispersed.
In a second aspect, the present application provides a method for preparing a composite non-stick coating, including the following steps:
according to the mass ratio of 1: (1.2-2.5) adding high-entropy ceramic powder into a fluorine-containing coating or a ceramic coating, uniformly stirring and dispersing to obtain a composite non-stick coating, and coating the composite non-stick coating on the outer surface of a pot body to obtain the composite non-stick coating, wherein when the fluorine-containing coating is adopted, the content of the high-entropy ceramic powder is 1% -20% of the total mass of the composite non-stick coating; when the ceramic coating is adopted, the content of the high-entropy ceramic powder is 8-20% of the total mass of the composite non-stick coating.
In the technical scheme, the fluorine-containing coating for coating the pot body generally comprises a non-stick bottom layer and a non-stick surface layer, a non-stick middle layer can be added according to needs, and the high-entropy ceramic powder is added into the fluorine-containing coating in two ways, namely, the high-entropy ceramic powder is directly added into the fluorine-containing coating; and the other method is to grind and disperse the high-entropy ceramic powder and a solvent into slurry and add the slurry into the fluorine-containing coating, wherein the solvent is consistent with the fluorine-containing coating solvent, and deionized water is generally selected to avoid introducing a new solvent to generate adverse effect on the fluorine-containing coating. The fluorine-containing coating is a common commercial fluorine-containing coating formula and comprises the following components in parts by weight: 15-50 parts of polytetrafluoroethylene resin or derivative resin thereof, 1-5 parts of pigment, 1-10 parts of filler, 0-10 parts of binder, 1-10 parts of assistant and 10-30 parts of solvent, wherein the assistant is composed of dispersant, emulsifier, stabilizer, defoamer, wetting agent and the like. The non-stick bottom layer, the non-stick middle layer and the non-stick surface layer of the fluorine-containing coating are selected in different proportions according to different functions.
In the technical scheme, the ceramic coating for coating the pot body generally comprises a non-stick bottom layer, a non-stick surface layer can be added according to needs, and the high-entropy ceramic powder is added into the ceramic coating in two ways, namely, the high-entropy ceramic powder is directly added into the ceramic coating; the other method is to grind and disperse high-entropy ceramic powder and a solvent into slurry and add the slurry into the ceramic coating, wherein the solvent is consistent with the ceramic coating solvent, and an alcohol solvent is generally selected, specifically isopropanol can be adopted, so as to avoid the adverse effect of introducing a new solvent on the fluorine-containing coating.
The ceramic coating is a common commercial coating formula and comprises the following components in parts by weight: 30-65% of component A and 20-40% of component B, wherein the component A comprises 45-100 parts of silica sol, 10-20 parts of pigment, 10-20 parts of filler and 1-2 parts of auxiliary agent; the component B comprises 10 to 20 portions of silane, 1 to 2 portions of catalyst (including formic acid, acetic acid and the like), 2 to 5 portions of auxiliary agent, 1 to 10 portions of solvent and the balance of isopropanol, wherein the auxiliary agent is composed of a dispersing agent, an emulsifying agent, a stabilizing agent, a defoaming agent, a wetting agent and the like. The non-stick bottom layer and the non-stick surface layer are selected according to different functions in different proportions.
As an optional technical scheme of the application, the average grain size of the high-entropy ceramic powder is 300-2000 meshes, and preferably the average grain size of the high-entropy ceramic powder is 500-1500 meshes.
The average grain size of the high-entropy ceramic powder is 300-2000 meshes, in the range, the material flow is good in the preparation process, the construction is convenient, and the optimal scheme is 500-1500 meshes, so that the surface of a coating prepared from the coating is smooth and uniformly dispersed.
In a third aspect, an embodiment of the application provides a cooking appliance, which comprises a pot body, wherein a non-stick coating is arranged on the inner surface of the pot body, and the non-stick coating is made of a composite non-stick coating; the composite non-stick coating comprises a non-stick coating and a filler; the filler comprises high-entropy ceramic powder, and the metal elements in the high-entropy ceramic powder comprise at least four of Mg, al, sc, ti, V, cr, mn, fe, co, ni, cu, zn, zr, nb, mo, sn, hf, ta, W or Pb.
In the scheme, the high-entropy ceramic powder is added into the non-stick coating of the cooking utensil, and due to the fact that the atomic radii of the high-entropy ceramic are different, the disorder of the microstructure of the material is improved, so that dislocation inside crystal lattices is inhibited, crystal lattice distortion is generated, the high entropy of the high-entropy ceramic obviously reduces free energy, the high-entropy ceramic has lower surface energy, the non-stick effect can be enhanced, and the wear resistance of the cooking utensil can be further improved.
In an optional technical scheme, the high-entropy ceramic powder comprises at least one of composite metal oxide, composite metal nitride, composite metal carbide, composite metal boride and composite metal silicide; the molar content of each metal element in the high-entropy ceramic powder is 5-35%; the average grain size of the high-entropy ceramic powder is 300-2000 meshes, and the average grain size of the high-entropy ceramic powder is 500-1500 meshes.
In the scheme, the high-entropy ceramic powder can form a solid solution with higher purity, the solid solution strengthening effect of the solid solution can obviously improve the strength and the hardness of the composite non-stick coating, the microscopic lattice distortion of the high-entropy ceramic powder can also improve the hardness and the strength of the composite non-stick coating, and the corrosion resistance of the composite non-stick coating can be improved. Moreover, the radii of all constituent elements in the high-entropy ceramic powder are different, all element atoms occupy all lattice positions with the same chance to cause distortion, the dislocation motion resistance can be increased by the lattice distortion, the strength and the hardness are obviously increased, and the elements can interact with each other, so that the high-entropy composite material presents a composite effect in the composite non-stick coating. The mol content of each element is controlled between 5 percent and 35 percent to ensure the multi-principal element characteristic of the alloy and improve the disorder degree of the alloy structure. Too fine high-entropy ceramic powder particles have an insignificant wear-resistant effect, and the cost is increased, and too coarse high-entropy ceramic powder particles cause a rough coating surface, and the particles are easily broken off. The selection of the high-entropy ceramic powder can prolong the lasting non-stick property of the composite non-stick coating. The average particle size of the high-entropy ceramic powder is 300-2000 meshes, specifically, the average particle size can be 300 meshes, 400 meshes, 500 meshes, 600 meshes, 700 meshes, 800 meshes, 900 meshes, 1000 meshes, 1100 meshes, 1200 meshes, 1300 meshes, 1400 meshes, 1500 meshes, 1600 meshes, 1700 meshes, 1800 meshes, 1900 meshes, 2000 meshes and the like, and in the range, the material flow is good in the preparation process, the construction is convenient, and the preferable scheme is 500-1500 meshes, so that the surface of a coating prepared by the coating is smooth and uniformly dispersed.
In an alternative scheme, when the fluorine-containing coating is selected, the content of the high-entropy ceramic powder is 1% to 20% of the total mass of the composite non-stick coating, and specifically, the content of the high-entropy ceramic powder may be 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 1%8, 19%, 20% and the like of the total mass of the composite non-stick coating, which is not limited herein.
When the fluorine-containing paint is selected, the non-stick coating comprises a non-stick surface layer and a non-stick bottom layer, a non-stick middle layer can be added according to requirements, the average particle size of high-entropy ceramic powder in the composite non-stick paint for forming the non-stick bottom layer is larger than that of the high-entropy ceramic powder in the composite non-stick paint for forming the non-stick middle layer, the bonding strength between the non-stick bottom layer and a pot body is improved by adding high-entropy ceramic powder with different particle sizes into the non-stick bottom layer and the non-stick middle layer, and the non-stick durability and the wear resistance of the non-stick surface layer are improved.
Since the non-stick layer mainly plays a role in corrosion resistance and wear resistance, larger particles are required to be filled in the coating layer, i.e., the particle size of the high-entropy ceramic powder is controlled to be 500 meshes to 800 meshes, specifically, 500 meshes, 600 meshes, 700 meshes, 800 meshes, and the like, which is not limited herein. Powder materials with too fine a particle size are not encapsulated in the resin to exert their non-stick effect, while powder materials with too coarse a particle size affect the overall appearance. The content of the high-entropy ceramic powder is 5-15% of the total mass of the non-stick layer, and specifically, the content of the high-entropy ceramic powder can be 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15% of the total mass of the non-stick layer, and the like, which is not limited herein. Within the range, the composite non-stick coating can well take the excellent performances of the fluorine-containing coating and the high-entropy ceramic powder into consideration, if the content of the high-entropy ceramic powder is too high, the film forming performance of the coating can be influenced, the adhesion is not good, and if the content of the high-entropy ceramic powder is too low, the effect of prolonging the lasting non-stick life cannot be achieved.
The average grain size of the high-entropy ceramic powder in the non-stick middle layer is 800-1500 meshes, because the non-stick middle layer mainly plays a role in adjusting color and certain non-stick property, and needs toner powder with smaller grain size to fill, the grain size of the high-entropy ceramic powder is controlled to be 800-1500 meshes, specifically, the grain size of the high-entropy ceramic powder can be 800 meshes, 900 meshes, 1000 meshes, 1100 meshes, 1200 meshes, 1300 meshes, 1400 meshes, 1500 meshes and the like, and is not limited herein. The content of the high-entropy ceramic powder is 5-10% of the total mass of the non-stick middle layer, the non-stick middle layer mainly plays a role in adjusting color and certain non-stick property, the content of the high-entropy ceramic powder is 5-10% of the total mass of the non-stick middle layer, the composite non-stick coating can well take the performances of the fluorine-containing coating and the high-entropy ceramic powder into consideration, and specifically, the content of the high-entropy ceramic powder can be 5%, 6%, 7%, 8%, 9%, 10% and the like of the total mass of the non-stick middle layer, and the content is not limited herein. If the content of the high-entropy ceramic powder is too high, the film-forming property of the coating is influenced, the adhesiveness is poor, and if the content of the high-entropy ceramic powder is too low, the effect of prolonging the durable non-stick life cannot be achieved.
As an optional technical scheme of the application, the thickness of the non-stick coating is 30-50 um, and the thickness of the non-stick bottom layer is 20-25 um; the thickness of the non-stick middle layer is 10-15 um.
The thickness of the non-stick coating can be 30um, 31um, 32um, 33um, 34um, 35um, 36um, 37um, 38um, 39um, 40um, 41um, 42um, 43um, 44um, 45um, 46um, 47um, 48um, 49um, 50um, etc., and the thickness of the non-stick coating is too large, which not only increases the cost, but also reduces the bonding force of the coating; the thickness of the non-stick coating is too small and the non-stick effect is deteriorated. The thickness of the non-stick bottom layer can be 20um, 21um, 22um, 23um, 24um, 25um and the like, and the non-stick bottom layer is not particularly limited, so that the bonding force between the whole non-stick composite layer and the pot body is improved by arranging the thin non-stick bottom layer; the thickness of the non-stick middle layer can be 10um, 11um, 12um, 13um, 14um, 15um etc. through setting up thicker non-stick middle layer, improve cooking utensil's non-stick durability and wearability.
In an alternative scheme, when the ceramic coating is selected, the content of the high-entropy ceramic powder is 8% to 20% of the total mass of the composite non-stick coating, and specifically, the content of the high-entropy ceramic powder may be 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 1%8, 19%, 20% of the total mass of the composite non-stick coating, and the like, which is not limited herein.
When the ceramic coating is selected, the non-stick coating comprises a non-stick bottom layer and can also comprise a non-stick middle layer, and the high-entropy ceramic powder with different particle sizes is added into the non-stick bottom layer and the non-stick middle layer, so that the bonding strength of the non-stick bottom layer and the pot body is improved, and the non-stick durability and the wear resistance of the non-stick surface layer are improved.
Since the non-stick layer mainly plays a role in corrosion resistance and wear resistance, it is necessary to fill the coating with larger particles, i.e., to control the particle size of the high-entropy ceramic powder to be 500 mesh to 600 mesh, specifically, 500 mesh, 600 mesh, etc., without limitation. Powder materials with too fine a particle size are not encapsulated in the resin to exert their non-stick effect, while powder materials with too coarse a particle size affect the overall appearance. The content of the high-entropy ceramic powder is 5-15% of the total mass of the non-stick bottom layer; specifically, the content of the high-entropy ceramic powder may be 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, etc. of the total mass of the non-stick layer, which is not limited herein. Within the range, the composite non-stick coating can well give consideration to the excellent performances of the fluorine-containing coating and the high-entropy ceramic powder.
The average grain size of the high-entropy ceramic powder in the non-stick bottom layer is 600-100 meshes, the non-stick bottom layer mainly plays a role in adjusting color and certain non-stick property, and the non-stick bottom layer needs toner with smaller grain size for filling, so that the grain size of the high-entropy ceramic powder is controlled to be 600-1000 meshes, specifically, the grain size of the high-entropy ceramic powder can be 600-700 meshes, 800-900-1000 meshes, and the like, and is not limited herein. The non-stick middle layer mainly has the functions of adjusting color and certain non-stick property, the content of the high-entropy ceramic powder is controlled to be 3% -8% of the total mass of the non-stick middle layer, the composite non-stick coating can well take the performances of the fluorine-containing coating and the high-entropy ceramic powder into consideration, and specifically, the content of the high-entropy ceramic powder can be 3%, 4%, 5%, 6%, 7%, 8% and the like of the total mass of the non-stick surface layer, and the method is not limited herein. If the content of the high-entropy ceramic powder is too high, the film-forming property of the coating is influenced, the adhesiveness is poor, and if the content of the high-entropy ceramic powder is too low, the effect of prolonging the durable non-stick life cannot be achieved.
As an optional technical scheme of the application, the thickness of the non-stick coating is 25-40 um, and the thickness of the non-stick bottom layer is 15-25 um; the thickness of the non-stick surface layer is 10-15 um.
The thickness of the non-stick coating can be 25um, 26um, 27um, 28um, 29um, 30um, 31um, 32um, 33um, 34um, 35um, 36um, 37um, 38um, 39um, 40um and the like, and the thickness of the non-stick coating is too large, so that the cost is increased, and the binding force of the coating is reduced; the thickness of the non-stick coating is too small and the non-stick effect is deteriorated. The thickness of the non-stick bottom layer can be 15um, 16um, 17um, 18um, 19um, 20um, 21um, 22um, 23um, 24um, 25um and the like, and the bonding force between the whole non-stick composite layer and the pan body is improved by arranging the thin non-stick bottom layer; the thickness of non-stick surface course can be 10um, 11um, 12um, 13um, 14um, 15um etc. through setting up thicker non-stick surface course, improves cooking utensil's non-sticking durability and wearability.
The examples of the present application are further illustrated below in various examples. The embodiments of the present application are not limited to the following specific embodiments. The present invention can be modified and implemented as appropriate within the scope of the main claim.
Example 1
Adding (MgCoNiCuZn) O into the fluorine coating, stirring and dispersing uniformly to obtain the composite non-stick coating, wherein the weight percentage of (MgCoNiCuZn) O in the composite non-stick coating is 10%, spraying the obtained composite non-stick coating in a pot body by adopting an air spraying process to form a non-stick coating, and drying.
Examples 2 to 4
Different from the embodiment 1, the weight percentages of the high-entropy ceramics of the embodiment 2, the embodiment 3 and the embodiment 4 in the composite non-stick coating are 1 percent, 15 percent and 20 percent in sequence.
Examples 5 to 6
Different from the embodiment 1, the high-entropy ceramic material of the embodiment 5 is (TiZrNbTaW) C, and the high-entropy ceramic material of the embodiment 6 is (AlCrSiTiV) N.
Examples 7 to 8
Unlike example 5, the weight percentages of (TiZrNbTaW) C in the composite non-stick coating in examples 7 and 8 are 3.5% and 12.6% respectively.
Examples 9 to 10
Unlike example 6, the weight percentages of (AlCrSiTiV) N in the composite non-stick coating for examples 9 and 10 are 4.6% and 11.8% in this order.
Example 11
A cooking utensil comprises a utensil body, wherein a non-stick layer is arranged on the surface of the utensil body and comprises a first coating and a second coating, wherein the first coating comprises fluorine coating base oil and (MgCoNiCuZn) O; the second coating comprises oil in fluoro paint and (MgCoNiCuZn) O; the appliance body further includes a top coat layer disposed over the non-stick layer, and the (MgCoNiCuZn) O content by weight of the first and second coating layers are respectively as shown in Table 1 below.
Examples 12 to 19
Different from the embodiment 11, the weight contents and specific addition amounts of the high-entropy ceramics in the first coating layer and the second coating layer in the embodiments 12 to 19 are shown in the table 1.
TABLE 1 addition amount of high entropy ceramics in examples 11 to 19
Comparative example 1
Unlike example 1, the coating of this comparative example does not contain high entropy ceramics.
Comparative example 2
Unlike example 11, neither the first coating layer nor the second coating layer of this comparative example contained high-entropy ceramics.
Comparative example 3
Unlike example 1, the weight content of the high-entropy ceramic in the coating of this comparative example was 22%.
Performance test 1:
the coatings of examples 1 to 19 and comparative examples 1 to 3 were tested for permanent non-stick properties when applied to non-stick pans, respectively, and were tested by the flat abrasion resistant non-stick test method, the test results of which are shown in table 2.
The specific test method is as follows.
The test flow is as follows: respectively placing the samples on an abrasion resistance tester, carrying out frequency 33 times/min, carrying out pressure 15N, adopting scouring pad (3M 7447B) with the length of 70 +/-5 mm and the width of 30 +/-5 mm, moving back and forth for 100mm, changing the scouring pad every 500 times, carrying out non-adhesion evaluation on the fried eggs, continuously carrying out two cycles of III level on the non-adhesion level of the fried eggs, and recording the test times after the test is finished.
Three samples were taken for each example and comparative example and tested.
TABLE 2 results of the in-plane abrasion resistance non-stick test of examples 1 to 19 and comparative examples 1 to 3
As can be seen from Table 2: compared with the comparative example 1, the non-stick coatings prepared by the embodiments 1-4, 5,7-8 and 6, 9-10 have the advantage that the plane wear resistance times are increased along with the increase of the content of the high-entropy ceramic in the composite non-stick coating, and the wear resistance times are far larger than those of the non-stick coating prepared by the comparative example 1 without the high-entropy ceramic. From examples 11 to 19 and comparative example 2, it can be seen that: the high-entropy ceramic is added into the middle oil and the bottom oil, the content of the high-entropy ceramic is controlled within the range defined in the application, the plane wear resistance is far larger than that of a comparative example 2, if the content of the high-entropy ceramic is larger than the content range defined in the application, the coating strength is reduced, and the adhesion fastness and scratch resistance of part of samples are unqualified.
Performance test 2:
the non-stick performance of the coatings of examples 1 to 19 and comparative examples 1 to 3 applied to non-stick pans was tested separately, and the accelerated simulation test method was used to evaluate the non-stick life, the test results being shown in table 3.
The specific test method is as follows:
the non-stick life is evaluated according to an accelerated simulation test program of the non-stick pan, and the test flow is as follows:
a: parched quartz stone (shovel) → B: shock abrasion resistance test → C: steel wire wear resistance test → D: dry-burn mixed sauce → E: boiled salt water → F: and (4) evaluating the non-stick grade of the fried eggs, finishing the above 5 testing steps and one non-stick grade evaluation, and marking the end of one cycle.
And when the accelerated simulation test is carried out, judging the non-stick service life after each cycle is finished. The endpoint can be determined by one of the following phenomena:
(1) The non-stick property is reduced: the non-stick grade of the fried eggs is continuously classified as grade III for two cycles;
(2) Appearance failure:
the coating has a fluffing phenomenon;
the diameter of the falling area of the coating is more than 3mm;
the abrasion obviously exposes the base material;
the coating has puncture type scratches (exposing the base material) of more than 3;
the dirt which cannot be washed off by the wet rag is generated;
the number of simulated test cycles at the end of the test was recorded as the non-stick life of the product, with more cycles indicating a longer non-stick life of the coating.
Three samples were taken for each example and comparative example and tested.
Table 3 results of accelerated simulation test of examples 1 to 19 and comparative examples 1 to 3
As can be seen from Table 3: by comparing example 2 with comparative example 1, it can be seen that: when the addition content of the high-entropy ceramic is less, the non-stick life of the high-entropy ceramic is slightly prolonged compared with that of a non-stick ceramic material without high entropy; with the increase of the content of the high-entropy ceramic, the non-stick life is increased by times, and when the high-entropy ceramic material is added to both an oil layer and a bottom oil layer in the non-stick coating, the performance is more excellent, and the non-stick life is longer.
Example 20
A composite non-stick coating comprises a ceramic coating and (MgCoNiCuZn) O, wherein the weight content of the (MgCoNiCuZn) O is 9%.
Examples 21 to 23
Different from the embodiment 20, the weight percentages of the high-entropy ceramic powder in the composite non-stick coating in the embodiments 21, 22 and 23 are 1 percent, 15 percent and 20 percent in sequence.
Examples 24 to 25
Different from the example 20, the high entropy ceramic powder in the example 24 is (TiZrNbTaW) C, and the high entropy ceramic powder in the example 25 is (AlCrSiTiV) N.
Examples 26 to 27
Unlike example 24, the weight percentages of (TiZrNbTaW) C in the composite non-stick coating in examples 26 and 27 are 3.5% and 12.6% in sequence.
Examples 28 to 29
Unlike example 25, the weight percentages of (AlCrSiTiV) N in the composite non-stick coating in examples 28 and 29 are 4.6% and 11.8% in this order.
Example 30
A cooking utensil comprises a utensil body and a non-stick layer arranged on the utensil body, wherein the non-stick layer comprises a first coating and a second coating. The first coating comprises (MgCoNiCuZn) O and ceramic paint base oil, and the second coating comprises diatomite and ceramic paint surface oil. The addition amount of (MgCoNiCuZn) O in the first coating layer and the second coating layer is shown in Table 4.
Examples 31 to 38
Different from the embodiment 30, the weight contents and specific addition amounts of the high-entropy ceramics in the first coating layer and the second coating layer in the embodiments 30 to 38 are shown in Table 4.
TABLE 4 types and addition amounts of high-entropy ceramics in examples 30 to 38
Comparative example 4
Unlike example 38, the first coat of this comparative example was a ceramic coating primer, the second coat was a ceramic coating medium oil, and neither the first coat nor the second coat contained high entropy ceramics.
Comparative example 5
Unlike example 38, the second coating of this comparative example was a ceramic paint finish, and the second coating did not contain high entropy ceramic.
Comparative example 6
Unlike example 38, the first coating layer of this comparative example was a ceramic paint base coat, and the first coating layer contained no high-entropy ceramic.
Comparative example 7
Unlike example 38, the weight contents of the high-entropy ceramics in the first coating layer and the second coating layer of this comparative example are both 25%.
Performance test 3:
the non-stick performance of the coatings in examples 20 to 38 and comparative examples 4 to 7 applied to a non-stick pan was tested respectively, and the non-stick life thereof was evaluated by an accelerated simulation test method, which is an accelerated simulation test standard for a non-stick pan, and the test results are shown in table 5.
The specific test method is as follows: the non-stick life is evaluated according to an accelerated simulation test program of the non-stick pan, and the test flow is as follows: a: shell vibration abrasion resistance test → B: seafood boiled in water → C: potato chips → D: sweet and sour spareribs → E: soy sauce boiled → F: fry hairtail → G: boiled detergent solution → H: and (4) evaluating the non-stick grade, and marking the end of one cycle after finishing the 5 test steps and one-time non-stick grade evaluation. And when the accelerated simulation test is carried out, judging the non-stick service life after each cycle is finished.
The endpoint can be determined by one of the following phenomena:
the non-stick property is reduced:
the non-stick grade of the fried eggs is continuously classified as grade III for two cycles;
appearance failure:
the diameter of the coating falling area is larger than 3mm;
the abrasion is obviously exposed out of the matrix;
the coating has puncture type scratches (exposing a matrix) of more than 3;
the dirt which cannot be washed off by the wet rag is generated;
the number of simulated test cycles at the end of the test is recorded as the non-stick life of the product, and the more cycles indicates the longer the non-stick life of the coating.
Three samples were taken for each example and comparative example and tested. The results of the tests are shown in table 5 (in the table, the three data in the number of cycles and the initial tack-free rating in the accelerated simulation test are in turn representative of the results of the tests for the 3 samples).
Meanwhile, the film forming properties of examples 20 to 38 and comparative examples 4 to 7 were tested, and the film forming properties of the non-stick coating were evaluated: the surface is smooth, the color, the covering power and the gloss are basically uniform, no bubble, crack or shedding exists, the film is judged to be qualified, otherwise, the film is not qualified, and the test result is shown in table 5.
TABLE 5 non-stick test results for examples 20-38 and comparative examples 4-7
As can be seen from Table 5: from examples 20 to 38 and comparative examples 4 to 6, it can be seen that: the non-stick pan added with the high-entropy ceramic has a non-stick life longer than that of a non-stick pan without the high-entropy ceramic material, when the addition content of the high-entropy ceramic is less, the non-stick life is slightly prolonged compared with that of the non-stick pan without the high-entropy ceramic material, the non-stick life is increased by times along with the increase of the content of the high-entropy ceramic, and when the content of the high-entropy ceramic is too high, the coating strength of the non-stick pan is poor, and a film cannot be formed normally.
Performance test 4:
the non-stick performance of the coatings in examples 20 to 38 and comparative examples 4 to 7 applied to a non-stick pan was tested by a flat abrasion resistant non-stick test method, the test standard was an accelerated simulation test standard for a non-stick pan, and the test results are shown in table 6.
The specific test method is as follows: placing the sample on a wear-resistant testing machine, carrying out frequency 33 times/min and pressure 15N, adopting scouring pad (3M 7447B) with length of 70 +/-5 mm and width of 30 +/-5 mm, moving back and forth for 100mm, changing scouring pad once without 500 times, carrying out non-sticking evaluation on the fried eggs, continuously carrying out two cycles of the non-sticking grade of the fried eggs to be grade III, and recording the testing times after the test is finished.
Three samples were taken for each example and comparative example and tested. The test results are shown in table 6 (in the table, three data of the number of cycles in the plane abrasion resistance non-stick test and the initial non-stick grade are sequentially the test results of 3 samples).
TABLE 6 non-stick test results for examples 20-38 and comparative examples 4-7
As can be seen from Table 6: in examples 30 to 38, compared with comparative examples 4, 5 and 6, the flat surface wear resistance of the non-stick pan with the high-entropy ceramic is much higher than that of the non-stick pan without the high-entropy ceramic material, and if the content of the high-entropy ceramic is higher than the content range defined in the application (comparative example 7), the coating strength is reduced, and the adhesion fastness and scratch resistance of part of the sample are unqualified.
The influence of the content of the high-entropy ceramic on the wear resistance and the non-stick durability is large, and the wear resistance can be enhanced and the non-stick service life can be prolonged by properly increasing the content of the high-entropy ceramic. However, the content of the high-entropy ceramic is not easy to be too large, and the film-forming performance is influenced, so that the interlayer bonding force of a sample is reduced, and the strength of a coating is reduced.
From the above test data, it can be seen that the non-stick coatings provided in the examples of the present application, overall, have better abrasion resistance and longer non-stick life than the non-stick coatings of the comparative examples.
Claims (16)
1. The composite non-stick coating is characterized by comprising the non-stick coating and a filler, wherein the filler comprises high-entropy ceramic powder, and the high-entropy ceramic powder comprises at least one of composite metal oxide, composite metal nitride, composite metal carbide, composite metal boride and composite metal silicide;
the metal elements in the high-entropy ceramic powder comprise at least four of Mg, al, sc, ti, V, cr, mn, fe, co, ni, cu, zn, zr, nb, mo, sn, hf, ta, W or Pb.
2. The composite non-stick coating according to claim 1, characterized in that it comprises at least one of the following features a to c:
a. the molar content of each metal element in the high-entropy ceramic powder is 5-35%;
b. the average grain diameter of the high-entropy ceramic powder is 300 meshes-2000 meshes;
c. the average grain diameter of the high-entropy ceramic powder is 500 meshes-1500 meshes.
3. The composite non-stick coating of claim 1, wherein the non-stick coating comprises a fluorine-containing coating or a ceramic coating.
4. The composite non-stick coating of claim 3, characterized in that it comprises at least one of the following features a to b:
a. when the non-stick coating is a fluorine-containing coating, the content of the high-entropy ceramic powder is 1-20% of the total mass of the composite non-stick coating;
b. when the non-stick coating is a ceramic coating, the content of the high-entropy ceramic powder is 8-20% of the total mass of the composite non-stick coating.
5. The preparation method of the composite non-stick coating is characterized by comprising the following steps:
and adding the high-entropy ceramic powder into the non-stick coating, and stirring and dispersing to obtain the composite non-stick coating.
6. The preparation method according to claim 5, wherein the non-stick material comprises fluorine-containing paint or ceramic paint, and when the fluorine-containing paint is adopted, the content of the high-entropy ceramic powder is 1-20% of the total mass of the composite non-stick paint; when the ceramic coating is adopted, the content of the high-entropy ceramic powder is 8-20% of the total mass of the composite non-stick coating.
7. The method according to claim 5 or 6, characterized in that it comprises at least one of the following technical features a to b:
a. the average grain diameter of the high-entropy ceramic powder is 300-2000 meshes;
b. the average grain diameter of the high-entropy ceramic powder is 500-1500 meshes.
8. The preparation method according to claim 6, wherein the high-entropy ceramic powder is added into the non-stick coating in a manner comprising the following two types:
a. directly adding the high-entropy ceramic powder;
b. grinding and dispersing the high-entropy ceramic powder and a solvent into slurry, and adding the slurry, wherein the mass ratio of the high-entropy ceramic powder to the solvent is 1: (1.2-2.5).
9. The cooking utensil is characterized by comprising a pot body, wherein a non-stick coating is arranged on the inner surface of the pot body, the non-stick coating is made of a composite non-stick coating, the composite non-stick coating comprises the non-stick coating and a filler, the filler comprises high-entropy ceramic powder, and metal elements in the high-entropy ceramic powder comprise at least four of Mg, al, sc, ti, V, cr, mn, fe, co, ni, cu, zn, zr, nb, mo, sn, hf, ta, W or Pb.
10. The cooking appliance of claim 9, wherein the cooking appliance includes at least one of the following features a-e:
a. the high-entropy ceramic powder comprises at least one of composite metal oxide, composite metal nitride, composite metal carbide, composite metal boride and composite metal silicide;
b. the molar content of each metal element in the high-entropy ceramic powder is 5-35%;
c. the average grain diameter of the high-entropy ceramic powder is 300-2000 meshes;
d. the average grain diameter of the high-entropy ceramic powder is 500-1500 meshes;
e. the non-stick coating comprises a fluorine-containing coating or a ceramic coating.
11. The cooking appliance of claim 10, wherein the non-stick coating containing the fluorine-containing coating includes at least one of the following features a-c:
a. the non-stick coating comprises a non-stick surface layer and a non-stick bottom layer;
b. the non-stick coating comprises a non-stick surface layer, a non-stick middle layer and a non-stick bottom layer;
c. the non-stick coating comprises a non-stick surface layer, a non-stick middle layer and a non-stick bottom layer, and the average particle size of high-entropy ceramic powder in the composite non-stick coating for forming the non-stick bottom layer is larger than that of the high-entropy ceramic powder in the composite non-stick coating for forming the non-stick middle layer.
12. The cooking appliance according to claim 11, wherein the non-stick coating satisfies at least one of the following conditions a to d:
a. the average grain diameter of the high-entropy ceramic powder in the non-stick bottom layer is 500-800 meshes;
b. the average grain diameter of the high-entropy ceramic powder in the non-stick middle layer is 800-1500 meshes;
c. the content of the high-entropy ceramic powder is 5-15% of the total mass of the non-stick bottom layer;
d. the content of the high-entropy ceramic powder is 5-10% of the total mass of the non-stick middle layer.
13. The cooking appliance according to claim 11 or 12, characterized in that said non-stick coating satisfies at least one of the following conditions a to c:
a. the thickness of the non-stick coating is 30-50 um;
b. the thickness of the non-stick bottom layer is 20-25 um;
c. the thickness of the non-stick middle layer is 10-15 um.
14. The cooking appliance according to claim 10, wherein the non-stick coating containing the ceramic paint comprises at least one of the following features a to b:
a. the non-stick coating comprises a non-stick bottom layer;
b. the non-stick coating comprises a non-stick surface layer and a non-stick bottom layer.
15. The cooking appliance according to claim 14, wherein the non-stick coating satisfies at least one of the following conditions a to d:
a. the average grain diameter of the high-entropy ceramic powder in the non-stick bottom layer is 500-600 meshes;
b. the average grain diameter of the high-entropy ceramic powder in the non-stick surface layer is 600-1000 meshes;
c. the content of the high-entropy ceramic powder is 10-15% of the total mass of the non-stick bottom layer;
d. the content of the high-entropy ceramic powder is 3-8% of the total mass of the non-stick surface layer.
16. The cooking appliance according to claim 14 or 15, wherein the non-stick coating satisfies at least one of the following conditions a to c:
a. the thickness of the non-stick coating is 25-40 um;
b. the thickness of the non-stick bottom layer is 15-25 um;
c. the thickness of the non-stick surface layer is 10-15 um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110771383.2A CN115595024B (en) | 2021-07-08 | 2021-07-08 | Composite non-stick coating, preparation method thereof and cooking utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110771383.2A CN115595024B (en) | 2021-07-08 | 2021-07-08 | Composite non-stick coating, preparation method thereof and cooking utensil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115595024A true CN115595024A (en) | 2023-01-13 |
| CN115595024B CN115595024B (en) | 2023-10-31 |
Family
ID=84840237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110771383.2A Active CN115595024B (en) | 2021-07-08 | 2021-07-08 | Composite non-stick coating, preparation method thereof and cooking utensil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115595024B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117511262A (en) * | 2023-11-13 | 2024-02-06 | 中国科学院兰州化学物理研究所 | Water-based high-entropy boride ceramic coating and preparation method thereof |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1814678A (en) * | 2005-02-01 | 2006-08-09 | 理想科学工业株式会社 | Water-based ink for stencil printing and stencil printing method |
| US20100132408A1 (en) * | 2008-12-01 | 2010-06-03 | Saint-Gobain Coating Solution | Coating for a device for forming glass products |
| US20100132409A1 (en) * | 2008-12-01 | 2010-06-03 | Saint-Gobain Coating Solutions | Coating for a device for forming glass products |
| CN104561878A (en) * | 2013-10-29 | 2015-04-29 | 比亚迪股份有限公司 | High-entropy alloy powder for spray coating and preparation method thereof, as well as composite material and preparation method thereof |
| CN107363359A (en) * | 2017-08-09 | 2017-11-21 | 北京工业大学 | A kind of method of compound high-entropy alloy solder ceramic soldering and metal |
| CN108380892A (en) * | 2018-04-03 | 2018-08-10 | 武汉理工大学 | A kind of ceramics/high-entropy alloy laminated material and preparation method thereof |
| CN109678523A (en) * | 2019-01-16 | 2019-04-26 | 广东工业大学 | A kind of high entropy ceramics and its preparation method and application with elevated temperature strength and hardness |
| CN109715577A (en) * | 2016-07-20 | 2019-05-03 | 佳殿玻璃有限公司 | Support the coating product and/or preparation method of the coating including high entropy nitride and/or sull |
| CN110219002A (en) * | 2019-07-02 | 2019-09-10 | 爱柯迪股份有限公司 | High-entropy alloy composite coating material and mould repair method for repairing mould |
| CN111254376A (en) * | 2020-03-15 | 2020-06-09 | 河北工业大学 | Preparation method of high-entropy ceramic composite coating |
| CN111254379A (en) * | 2020-03-15 | 2020-06-09 | 河北工业大学 | Preparation method of high-entropy ceramic coating |
| CN111270190A (en) * | 2020-03-15 | 2020-06-12 | 河北工业大学 | Preparation method of high-entropy ceramic-alumina composite coating |
| CN111269651A (en) * | 2020-04-10 | 2020-06-12 | 浙江添越新材料有限公司 | High-hardness water-based non-stick coating and preparation method thereof |
| CN111321381A (en) * | 2020-03-05 | 2020-06-23 | 武汉大学 | AlCrNbSiTiBN-based nano composite coating of hard alloy blade and preparation method thereof |
| CN111363424A (en) * | 2020-05-13 | 2020-07-03 | 浙江添越新材料有限公司 | High-hardness non-stick coating with metal texture and preparation method thereof |
| CN111944334A (en) * | 2019-05-14 | 2020-11-17 | 北京麦特斯普瑞防腐工程有限公司 | Nano metal ceramic coating |
| CN112294092A (en) * | 2020-10-23 | 2021-02-02 | 上海承一化学科技有限公司 | Pan with non-stick coating |
| CN112830791A (en) * | 2021-01-22 | 2021-05-25 | 广东工业大学 | High-entropy ceramic and preparation method and application thereof |
-
2021
- 2021-07-08 CN CN202110771383.2A patent/CN115595024B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1814678A (en) * | 2005-02-01 | 2006-08-09 | 理想科学工业株式会社 | Water-based ink for stencil printing and stencil printing method |
| US20100132408A1 (en) * | 2008-12-01 | 2010-06-03 | Saint-Gobain Coating Solution | Coating for a device for forming glass products |
| US20100132409A1 (en) * | 2008-12-01 | 2010-06-03 | Saint-Gobain Coating Solutions | Coating for a device for forming glass products |
| CN104561878A (en) * | 2013-10-29 | 2015-04-29 | 比亚迪股份有限公司 | High-entropy alloy powder for spray coating and preparation method thereof, as well as composite material and preparation method thereof |
| CN109715577A (en) * | 2016-07-20 | 2019-05-03 | 佳殿玻璃有限公司 | Support the coating product and/or preparation method of the coating including high entropy nitride and/or sull |
| CN107363359A (en) * | 2017-08-09 | 2017-11-21 | 北京工业大学 | A kind of method of compound high-entropy alloy solder ceramic soldering and metal |
| CN108380892A (en) * | 2018-04-03 | 2018-08-10 | 武汉理工大学 | A kind of ceramics/high-entropy alloy laminated material and preparation method thereof |
| CN109678523A (en) * | 2019-01-16 | 2019-04-26 | 广东工业大学 | A kind of high entropy ceramics and its preparation method and application with elevated temperature strength and hardness |
| CN111944334A (en) * | 2019-05-14 | 2020-11-17 | 北京麦特斯普瑞防腐工程有限公司 | Nano metal ceramic coating |
| CN110219002A (en) * | 2019-07-02 | 2019-09-10 | 爱柯迪股份有限公司 | High-entropy alloy composite coating material and mould repair method for repairing mould |
| CN111321381A (en) * | 2020-03-05 | 2020-06-23 | 武汉大学 | AlCrNbSiTiBN-based nano composite coating of hard alloy blade and preparation method thereof |
| CN111254379A (en) * | 2020-03-15 | 2020-06-09 | 河北工业大学 | Preparation method of high-entropy ceramic coating |
| CN111270190A (en) * | 2020-03-15 | 2020-06-12 | 河北工业大学 | Preparation method of high-entropy ceramic-alumina composite coating |
| CN111254376A (en) * | 2020-03-15 | 2020-06-09 | 河北工业大学 | Preparation method of high-entropy ceramic composite coating |
| CN111269651A (en) * | 2020-04-10 | 2020-06-12 | 浙江添越新材料有限公司 | High-hardness water-based non-stick coating and preparation method thereof |
| CN111363424A (en) * | 2020-05-13 | 2020-07-03 | 浙江添越新材料有限公司 | High-hardness non-stick coating with metal texture and preparation method thereof |
| CN112294092A (en) * | 2020-10-23 | 2021-02-02 | 上海承一化学科技有限公司 | Pan with non-stick coating |
| CN112830791A (en) * | 2021-01-22 | 2021-05-25 | 广东工业大学 | High-entropy ceramic and preparation method and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| LU, XL等: "Investigation of (CrAlTiNbV)Nx high-entropy nitride coatings via tailoring nitrogen flow rate for anti-wear applications in aviation lubricant", APPLIED SURFACE SCIENCE, vol. 557, pages 1 - 9 * |
| 杨显;蒋杰;胡建军;曾敬;: "高熵合金涂层的研究进展", 化学工程与装备, no. 03, pages 209 - 217 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117511262A (en) * | 2023-11-13 | 2024-02-06 | 中国科学院兰州化学物理研究所 | Water-based high-entropy boride ceramic coating and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115595024B (en) | 2023-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20190241467A1 (en) | Glass or glass ceramic substrate provided with a decorative coating and method for producing same | |
| CN112137422A (en) | Non-stick master batch, manufacturing method of non-stick master batch, non-stick material and cooking utensil | |
| US9073788B2 (en) | Ceramic paints and protective coatings | |
| KR100751742B1 (en) | Spray powder, thermal spraying process using it, and sprayed coating | |
| US6638600B2 (en) | Ceramic substrate for nonstick coating | |
| CN114644851B (en) | Composite non-stick coating and cooking utensil | |
| US20150367454A1 (en) | Thermal spray processes and alloys for use in same | |
| CN111363424B (en) | High-hardness non-stick coating with metal texture and preparation method thereof | |
| CN112137426A (en) | Coating and cooking utensil | |
| EP0961017B1 (en) | High temperature resistant coating | |
| WO2001092413A1 (en) | Hybrid coating compositions | |
| CN115595024A (en) | Composite non-stick coating, preparation method thereof and cooking utensil | |
| HUE031864T2 (en) | Chromium-free silicate-based ceramic compositions | |
| CN114642363A (en) | Pan and boiling equipment | |
| CN215077458U (en) | Cooking utensil | |
| CN109957750A (en) | Non-sticking lining and preparation method thereof and cookware and equipment of cooking | |
| CN113873924A (en) | Method for manufacturing cookware comprising thermochromic composite coating and cookware manufactured by the method | |
| JP5934785B2 (en) | Exterior pigment excellent in weather resistance and method for producing the same | |
| CN110432785A (en) | A kind of heat resistant and wear resistant non-stick pan coating layer, preparation method and its non-stick pan | |
| EP1001046B1 (en) | High temperature corrosion-resistant and abrasion-resistant coating member, and manufacturing method thereof | |
| CN114981374A (en) | Heat resistant coating composition | |
| CN114645176B (en) | Non-stick material and preparation method thereof, cooking utensil containing non-stick material and preparation method thereof | |
| JP2020094799A (en) | Top plate for cooker | |
| WO2022054607A1 (en) | Coating composition, coating film, and laminate | |
| CN114711632A (en) | Container body, preparation method thereof and cooking appliance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |