CN114394762B - Glassware coated with non-stick coating and preparation process thereof - Google Patents
Glassware coated with non-stick coating and preparation process thereof Download PDFInfo
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- CN114394762B CN114394762B CN202210084400.XA CN202210084400A CN114394762B CN 114394762 B CN114394762 B CN 114394762B CN 202210084400 A CN202210084400 A CN 202210084400A CN 114394762 B CN114394762 B CN 114394762B
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- 239000011248 coating agent Substances 0.000 title claims abstract description 56
- 238000000576 coating method Methods 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000010410 layer Substances 0.000 claims abstract description 56
- 238000005507 spraying Methods 0.000 claims abstract description 49
- 239000011521 glass Substances 0.000 claims abstract description 47
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 239000000853 adhesive Substances 0.000 claims abstract description 8
- 230000001070 adhesive effect Effects 0.000 claims abstract description 8
- 239000011159 matrix material Substances 0.000 claims abstract description 5
- 239000005388 borosilicate glass Substances 0.000 claims description 32
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 239000002344 surface layer Substances 0.000 claims description 17
- -1 polysiloxane Polymers 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims 1
- 239000003822 epoxy resin Substances 0.000 abstract description 29
- 229920000647 polyepoxide Polymers 0.000 abstract description 29
- 239000012790 adhesive layer Substances 0.000 abstract description 17
- 229920003180 amino resin Polymers 0.000 abstract description 13
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 238000005488 sandblasting Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 230000003670 easy-to-clean Effects 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 description 32
- 238000012360 testing method Methods 0.000 description 30
- 238000005245 sintering Methods 0.000 description 29
- 239000002994 raw material Substances 0.000 description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 21
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 20
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 20
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 20
- 229910052710 silicon Inorganic materials 0.000 description 18
- 239000010703 silicon Substances 0.000 description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 16
- 229920005989 resin Polymers 0.000 description 16
- 239000011347 resin Substances 0.000 description 16
- 239000000945 filler Substances 0.000 description 15
- 235000013305 food Nutrition 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- 239000002562 thickening agent Substances 0.000 description 12
- 239000000843 powder Substances 0.000 description 10
- 238000001816 cooling Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
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- 238000005238 degreasing Methods 0.000 description 7
- 239000012467 final product Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 238000004040 coloring Methods 0.000 description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 6
- 238000010411 cooking Methods 0.000 description 5
- 235000021478 household food Nutrition 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 229920000877 Melamine resin Polymers 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 229920002050 silicone resin Polymers 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- LNAZSHAWQACDHT-XIYTZBAFSA-N (2r,3r,4s,5r,6s)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2s,3r,4s,5r,6r)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6r)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical compound CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 description 2
- GZVHEAJQGPRDLQ-UHFFFAOYSA-N 6-phenyl-1,3,5-triazine-2,4-diamine Chemical compound NC1=NC(N)=NC(C=2C=CC=CC=2)=N1 GZVHEAJQGPRDLQ-UHFFFAOYSA-N 0.000 description 2
- 239000004278 EU approved seasoning Substances 0.000 description 2
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 2
- 239000004640 Melamine resin Substances 0.000 description 2
- 241001122767 Theaceae Species 0.000 description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- CFOAUMXQOCBWNJ-UHFFFAOYSA-N [B].[Si] Chemical compound [B].[Si] CFOAUMXQOCBWNJ-UHFFFAOYSA-N 0.000 description 2
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 229920003086 cellulose ether Polymers 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 235000011194 food seasoning agent Nutrition 0.000 description 2
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical class O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 description 2
- DYDNPESBYVVLBO-UHFFFAOYSA-N formanilide Chemical compound O=CNC1=CC=CC=C1 DYDNPESBYVVLBO-UHFFFAOYSA-N 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 2
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 2
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 2
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 2
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 235000010981 methylcellulose Nutrition 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000009965 odorless effect Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000019198 oils Nutrition 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 235000015067 sauces Nutrition 0.000 description 2
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 2
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- 235000013616 tea Nutrition 0.000 description 2
- 235000021419 vinegar Nutrition 0.000 description 2
- 239000000052 vinegar Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000006119 easy-to-clean coating Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000004280 healthy diet Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 235000011888 snacks Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000012184 tortilla Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/001—General methods for coating; Devices therefor
- C03C17/003—General methods for coating; Devices therefor for hollow ware, e.g. containers
- C03C17/004—Coating the inside
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3405—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of organic materials
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/112—Deposition methods from solutions or suspensions by spraying
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/32—After-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention discloses a glass ware coated with a non-stick coating and a preparation process thereof, the glass ware comprises a glass substrate, the glass substrate is provided with an inner surface, a layer of bonding layer is coated on the inner surface, the bonding layer is coated with the non-stick coating, the non-stick coating and the inner surface of the glass substrate are connected and transited through the bonding layer, wherein the bonding layer at least comprises the following components in percentage by mass: 20-50% of modified epoxy resin and 15-35% of amino resin. The glass vessel of the invention omits the sand blasting treatment of the glass surface, adopts a mode of spraying a layer of adhesive layer, improves the overall effect, has good bonding force between the non-adhesive coating and the matrix, is not easy to clean, corrosion-resistant and high-temperature-resistant, and has longer service life.
Description
The application relates to a glassware coated with a non-stick coating and a preparation process thereof, which are divisional applications of a patent application with the Chinese application number 201910594780.X, and the application date of the original application is 2019, 7 months and 3 days.
Technical Field
The invention relates to the field of high-boron silicon products, in particular to a glass ware with a non-stick coating coated on the inner surface and a preparation process thereof.
Background
The high boron silicon product is a recognized green environment-friendly glass, is nontoxic and odorless, has no pollution to food and is high-temperature resistant, and can be used in an oven to make various Chinese and western staple foods and cakes.
With the improvement of life quality, household ovens are also becoming popular in developed areas of China and enter the kitchen of many families. As a roasting tool of the oven, the high borosilicate glass ware is a choice of many household users at present due to high temperature resistance, health and sanitation, and is also very suitable for the healthy diet requirements of consumers.
Many high-boron silicon vessels in the current market have common characteristics, namely, all the high-boron silicon vessels are transparent glass with the first color, and appear to be relatively dull despite of different shapes and uses; moreover, when the inner wall of the high borosilicate vessel in the market is not subjected to non-sticking treatment and the high borosilicate vessel without the non-sticking coating is baked in the oven, the inner surface of the high borosilicate vessel is generally adhered with adhesive substances when the food is taken out after baking, and the high borosilicate vessel is relatively time-consuming to clean and inconvenient to clean.
In order to make the high boron silicon vessel have non-stick function, according to the prior art, the inner surface of the vessel is firstly subjected to sand blasting roughening treatment to ensure that the surface has roughness of 3-4 mu m so as to ensure that the non-stick coating and glass have sufficient adhesion fastness, and then the vessel is cleaned and dried, and then the processing of spraying the non-stick coating is carried out. The working procedures of sand blasting, cleaning, drying and the like need to consume a lot of compressed air, water and electric energy; in order to prevent the outer surface of the vessel from being sprayed with sand grains and damaging the smooth surface of the glass during sand blasting, a special sleeve is required to be used for protection, and the sand blasting is inconvenient. In addition, dust in the sand blasting process also easily pollutes the working environment and products.
Therefore, those skilled in the art have been working to develop a borosilicate glass vessel and provide a simple preparation process that retains the original properties and characteristics of the borosilicate glass vessel and that provides a substantial improvement in both non-stick and easy-to-clean properties.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to solve the technical problems that the inner surface of the high borosilicate glass vessel is adhered with food after being baked at high temperature, and the food is not easy to clean, and the current vessel processing technology is inconvenient and the pollution in the processing process is large.
In order to achieve the above object, the present invention provides a glass vessel coated with a non-stick coating, comprising a glass substrate having an inner surface coated with a non-stick coating, the non-stick coating and the inner surface of the glass substrate being connected and transited by a bonding layer, wherein the non-stick coating comprises:
the bottom layer comprises the following components in percentage by mass:
And a surface layer comprising the following components in percentage by mass:
The non-stick coating of the invention belongs to food grade, completely meets the requirements of sanitation, and can be used on the surface of food containers.
Further, in one embodiment of the present invention, the adhesive layer is composed of a high temperature resistant adhesive, comprising the following components in mass percent:
Compared with the prior art, when the inner surface of the glass vessel is coated with the easy-cleaning coating, the sand blasting treatment can be omitted on the surface of the glass, a thin bonding layer is sprayed on the surface of the glass in advance, then the non-stick coating is directly sprayed on the bonding layer, and the non-stick coating is combined with the glass matrix through sintering to form a film.
Preferably, the glass substrate is made of borosilicate glass. The high borosilicate glass is a recognized green environment-friendly glass, is nontoxic and odorless, has no pollution to food, has a very low thermal expansion coefficient, can resist high temperature of 400 ℃ and 130 ℃ temperature difference rapid change, can be used in a household oven, and can be used for baking various staple foods and snack foods.
Further, the thickness of the glass substrate is 2.5-6.0mm. The glassware can be in various shapes such as round, square, oval and the like, and the height range is 20-100 mm. The glass may be selected to be clear or other colors as desired.
Further, the modified silicone resin is selected from polyester modified silicone resins.
Further, the modified epoxy resin is selected from one or more of silicone modified epoxy resin, aqueous polyester modified epoxy resin and aqueous acrylic fatty acid modified epoxy resin.
Further, the filler is one or more selected from mica powder, talcum powder, glass powder and precipitated barium sulfate, and the fineness is 800-1600 meshes.
Further, the leveling agent is selected from silicone modified polysiloxanes, polyacrylates, and the like.
Further, the amino resin is selected from one or more of methylated amino resin, urea resin, melamine resin, benzoguanamine resin, fully methylated or partially methylated melamine formaldehyde resin and aniline formaldehyde resin.
Further, the thickener is cellulose ether thickener, including methylcellulose, hydroxypropyl methylcellulose, sodium carboxymethylcellulose, hydroxyethyl cellulose, etc.
In embodiments of the present invention, the choice of the color of the inner coating is not limited, and various colors of flowers, such as color dots, color prints, etc., may be made.
The color of the bottom layer and the color of the surface layer of the non-sticky and easy-to-clean coating are different colors by utilizing the characteristic of transparency of glass, so that the color of the bottom layer is displayed on the appearance of the vessel, is displayed through the glass, has hazy aesthetic feeling, the color of the surface layer is displayed in the vessel, the so-called 'double-color' effect is generated on the same vessel by selecting different colors of the bottom layer and the surface layer, and further, the color sprinkling and color printing treatment can be performed on the surface of the surface layer, so that the color of the high-boron silicon vessel is more colorful.
The invention also provides a preparation process of the glassware coated with the non-stick coating, which comprises the following steps:
(1) Pretreatment of the inner surface of a glassware: degreasing and cleaning, hot water cleaning and pure water cleaning are sequentially carried out on the inner surface of the glassware, and the inner surface is dried after cleaning;
(2) And (3) spraying an adhesive layer: the adhesive layer raw materials are prepared according to the following mass percentages: 40-50% of modified epoxy resin, 15-25% of amino resin, 1-2% of flatting agent, 5-10% of thickening agent, 10-12% of propylene glycol methyl ether acetate and 15-20% of butyl acetate, and after being mixed and stirred uniformly, the mixture is sprayed on the inner surface of a glassware, wherein the sprayed thickness is 6-8 mu m;
(3) Spraying a bottom layer: the bottom raw materials are prepared according to the following mass percentages: 50-55% of modified organic silicon resin, 3-5% of modified epoxy resin, 10-18% of toner, 5-8% of filler, 10-12% of propylene glycol methyl ether acetate and 15-20% of butyl acetate are uniformly mixed and stirred, then sprayed on the upper surface of a bonding layer, the sprayed thickness is 15-20 mu m, and then the bonding layer is dried at the temperature of 90-100 ℃ for 3-5min and cooled to room temperature;
(4) Spraying a surface layer: the bottom raw materials are prepared according to the following mass percentages: 50-55% of modified organic silicon resin, 1-2% of PTFE micro powder, 3-5% of modified epoxy resin, 8-16% of toner, 0.2-0.8% of coloring aluminum powder, 5-8% of filler, 1-2% of flatting agent, 10-12% of propylene glycol methyl ether acetate and 15-20% of butyl acetate, and after being uniformly mixed and stirred, the mixture is sprayed on the upper surface of a bottom layer, wherein the spraying thickness is 10-15 mu m;
(5) Sintering: and (3) putting the glassware treated in the step (4) into a sintering furnace, sintering at 260-280 ℃ for 5-8min, and naturally cooling after sintering to obtain a final product.
Further, the glass substrate is made of high borosilicate glass.
Further, the treatment process of mixing and stirring in the step (2) comprises the steps of putting modified epoxy resin, amino resin, propylene glycol methyl ether acetate and butyl acetate into a grinder for grinding, wherein the grinding fineness is less than 10 mu m; then adding a leveling agent and a thickening agent, uniformly dispersing by a homogenizer, adjusting the viscosity, and filtering by a 200-mesh screen for spraying. Preferably, a mesh screen is selected to be 200 mesh.
Further, the method also comprises the step of spraying points on the upper surface of the surface layer after the step (4).
Preferably, the surface is dried for 3-5min at 93 ℃ after spraying in the step (3), and then cooled to room temperature.
The glass ware coated with the non-stick coating has the following technical effects:
(1) The invention omits the sand blasting treatment of the glass surface, but adopts a mode of spraying a layer of adhesive layer on the glass surface in advance, so that the product cost is not increased much, the processing steps are simplified, the whole effect is improved, and the non-adhesive coating has good bonding force with the matrix;
(2) The high borosilicate glassware is easy to clean, the baked food does not have the problem of adhesion, the use is more convenient and labor-saving, and the non-adhesive coating is resistant to daily corrosion of atmosphere, water vapor, oil, salt, sauce, vinegar, tea and various seasonings, has surface hardness of more than 3H, and has longer service life;
(3) The safe use temperature of the high borosilicate glass ware can reach more than 250 ℃, and the requirements of the oven on the temperature resistance of the baking tool are completely met;
(4) The invention adds beautiful appearance and useful new functions after the non-sticky and easy-cleaning coating is coated on the inner surface of the high-borosilicate glass vessel, and fills up the blank of the product.
The conception, specific structure, and technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present invention.
Drawings
FIG. 1 is a schematic view of a preferred embodiment of a non-stick coated glassware according to the present invention.
Fig. 2 is an enlarged view of a portion of the coating composition of fig. 1.
Wherein, 1 glass matrix, 2 tie coat, 3 bottom layer, 4 top layer.
Detailed Description
The glass vessel coated with the non-stick coating according to the present invention is shown in fig. 1 and 2, and comprises a glass substrate 1, wherein the glass substrate 1 has an inner surface, the inner surface is coated with the non-stick coating, and the non-stick coating and the inner surface of the glass substrate 1 are connected and transited through a layer of adhesive layer 2, and the non-stick coating comprises a bottom layer 3 and a surface layer 4. In one embodiment of the invention, the glass substrate is made of borosilicate glass. Preferably, the glass substrate has a thickness of 2.5-6.0mm.
In a specific embodiment of the application, in the non-stick coating, the bottom layer comprises the following components in percentage by mass:
and the surface layer comprises the following components in percentage by mass:
further, the bonding layer is composed of a high-temperature-resistant adhesive and comprises the following components in percentage by mass:
Further, in the above-mentioned constituent raw materials, the modified silicone resin may be selected from polyester modified silicone resins; the modified epoxy resin is selected from one or more of organosilicon modified epoxy resin, aqueous polyester modified epoxy resin and aqueous acrylic acid fatty acid modified epoxy resin; the amino resin is selected from one or more of methylated amino resin, urea resin, melamine resin, benzoguanamine resin, fully methylated or partially methylated melamine formaldehyde resin and aniline formaldehyde resin; the filler is selected from one or more of mica powder, talcum powder, glass powder and precipitated barium sulfate, and the fineness of the filler is 800-1600 meshes; the leveling agent is organosilicon modified polysiloxane and polyacrylate; the thickener is cellulose ether thickener, including methylcellulose, hydroxypropyl methylcellulose, sodium carboxymethylcellulose, hydroxyethyl cellulose, etc.
The invention also provides a preparation process of the glassware coated with the non-stick coating, which comprises the following steps:
(1) Pretreatment of the inner surface of a glassware: degreasing and cleaning, hot water cleaning and pure water cleaning are sequentially carried out on the inner surface of the glassware, and the inner surface is dried after cleaning;
(2) And (3) spraying an adhesive layer: preparing raw materials of the bonding layer, mixing and stirring uniformly, and spraying the raw materials on the inner surface of a glassware, wherein the spraying thickness is 6-8 mu m;
(3) Spraying a bottom layer: preparing the raw materials of the bottom layer, mixing, stirring uniformly, spraying on the upper surface of the bonding layer to a thickness of 15-20 mu m, then performing surface drying at 90-100 ℃ for 3-5min, and cooling to room temperature;
(4) Spraying a surface layer: preparing the raw materials of the bottom layer, mixing and stirring uniformly, and then spraying the raw materials on the upper surface of the bottom layer, wherein the spraying thickness is 10-15 mu m;
(5) Sintering: and (3) putting the glassware treated in the step (4) into a sintering furnace, sintering at 260-280 ℃ for 5-8min, and naturally cooling after sintering to obtain a final product.
The preparation process of the present invention is specifically illustrated by the following examples.
Example 1
This example provides a glassware coated with a non-stick coating prepared by the steps of:
(1) Pretreatment of the inner surface of a glassware: degreasing and cleaning, hot water cleaning and pure water cleaning are sequentially carried out on the inner surface of the glassware, impurities on the inner surface are removed, and the inner surface is blow-dried by cold air after cleaning;
(2) And (3) spraying an adhesive layer: the adhesive layer raw materials are prepared according to the following mass percentages: 50% of modified epoxy resin, 19% of amino resin, 1% of flatting agent, 5% of thickening agent, 10% of propylene glycol methyl ether acetate and 15% of butyl acetate, and after blending, putting the modified epoxy resin, the amino resin, the propylene glycol methyl ether acetate and the butyl acetate into a grinder for grinding, wherein the grinding fineness is less than 10 mu m; then adding a leveling agent and a thickening agent, uniformly dispersing by a homogenizer, regulating viscosity, filtering by a 200-mesh screen, and spraying on the inner surface of a glassware, wherein the spraying thickness is 6 mu m;
(3) Spraying a bottom layer: the bottom raw materials are prepared according to the following mass percentages: 50% of modified organic silicon resin, 3% of modified epoxy resin, 17% of toner, 5% of filler, 10% of propylene glycol methyl ether acetate and 15% of butyl acetate are uniformly mixed and stirred, then sprayed on the upper surface of a bonding layer, the sprayed thickness is 15 mu m, and then the bonding layer is dried at 90 ℃ for 5min and cooled to room temperature;
(4) Spraying a surface layer: the bottom raw materials are prepared according to the following mass percentages: 55% of modified organic silicon resin, 2% of PTFE micro powder, 3% of modified epoxy resin, 8% of toner, 0.2% of coloring aluminum powder, 5.5% of filler, 1.3% of flatting agent, 10% of propylene glycol methyl ether acetate and 15% of butyl acetate, and after being mixed and stirred uniformly, the mixture is sprayed on the upper surface of a bottom layer, and the spraying thickness is 10 mu m;
(5) Sintering: and (3) putting the glassware treated in the step (4) into a sintering furnace, sintering for 5min at the temperature of 280 ℃, and naturally cooling after sintering to obtain a final product.
Example 2
The high borosilicate glass ware coated with the non-stick coating provided in the embodiment is prepared by the following steps:
(1) Pretreatment of the inner surface of the high borosilicate glass vessel: degreasing and cleaning, hot water cleaning and pure water cleaning are sequentially carried out on the inner surface of the high borosilicate glass vessel, and cold air drying is carried out on the inner surface after cleaning;
(2) And (3) spraying an adhesive layer: the adhesive layer raw materials are prepared according to the following mass percentages: 40% of modified epoxy resin, 20% of amino resin, 2% of flatting agent, 8% of thickening agent, 12% of propylene glycol methyl ether acetate and 18% of butyl acetate, and after being uniformly mixed and stirred, the mixture is sprayed on the inner surface of a high borosilicate glass ware, wherein the sprayed thickness is 8 mu m;
(3) Spraying a bottom layer: the bottom raw materials are prepared according to the following mass percentages: 50% of modified organic silicon resin, 5% of modified epoxy resin, 10% of toner, 5% of filler, 10% of propylene glycol methyl ether acetate and 20% of butyl acetate are uniformly mixed and stirred, then sprayed on the upper surface of a bonding layer, the sprayed thickness is 20 mu m, and then the bonding layer is dried at 100 ℃ for 3min and cooled to room temperature;
(4) Spraying a surface layer: the bottom raw materials are prepared according to the following mass percentages: 50% of modified organic silicon resin, 2% of PTFE micro powder, 3% of modified epoxy resin, 10% of toner, 0.8% of coloring aluminum powder, 7.5% of filler, 1.7% of flatting agent, 10% of propylene glycol methyl ether acetate and 15% of butyl acetate, and after being mixed and stirred uniformly, the mixture is sprayed on the upper surface of a bottom layer, and the spraying thickness is 15 mu m;
(5) Sintering: and (3) placing the high borosilicate glass ware treated in the step (4) into a sintering furnace, sintering at 260 ℃ for 8min, and naturally cooling after sintering to obtain a final product.
Example 3
The high borosilicate glass ware coated with the non-stick coating provided in the embodiment is prepared by the following steps:
(1) Pretreatment of the inner surface of the high borosilicate glass vessel: degreasing and cleaning, hot water cleaning and pure water cleaning are sequentially carried out on the inner surface of the high borosilicate glass vessel, and the inner surface is dried after cleaning;
(2) And (3) spraying an adhesive layer: the adhesive layer raw materials are prepared according to the following mass percentages: 44% of modified epoxy resin, 15% of amino resin, 1% of flatting agent, 8% of thickening agent, 12% of propylene glycol methyl ether acetate and 20% of butyl acetate, and uniformly mixing and stirring, and then spraying the mixture on the inner surface of a high borosilicate glass ware, wherein the spraying thickness is 7 mu m;
(3) Spraying a bottom layer: the bottom raw materials are prepared according to the following mass percentages: 55% of modified organic silicon resin, 3% of modified epoxy resin, 11% of toner, 5% of filler, 10% of propylene glycol methyl ether acetate and 16% of butyl acetate are uniformly mixed and stirred, then sprayed on the upper surface of a bonding layer, the sprayed thickness is 15 mu m, and then the bonding layer is dried at 90-100 ℃ for 4min and cooled to room temperature;
(4) Spraying a surface layer: the bottom raw materials are prepared according to the following mass percentages: 55% of modified organic silicon resin, 2% of PTFE micro powder, 3% of modified epoxy resin, 8% of toner, 0.5% of coloring aluminum powder, 5% of filler, 1.5% of flatting agent, 10% of propylene glycol methyl ether acetate and 15% of butyl acetate, and after being mixed and stirred uniformly, the mixture is sprayed on the upper surface of a bottom layer, and the spraying thickness is 10-15 mu m;
(5) Sintering: and (3) placing the high borosilicate glass ware treated in the step (4) into a sintering furnace, sintering for 5min at the temperature of 280 ℃, and naturally cooling after sintering to obtain a final product.
Example 4
The high borosilicate glass ware coated with the non-stick coating provided in the embodiment is prepared by the following steps:
(1) Pretreatment of the inner surface of the high borosilicate glass vessel: degreasing and cleaning, hot water cleaning and pure water cleaning are sequentially carried out on the inner surface of the high borosilicate glass vessel, and the inner surface is dried after cleaning;
(2) And (3) spraying an adhesive layer: the adhesive layer raw materials are prepared according to the following mass percentages: 45% of modified epoxy resin, 20% of amino resin, 2% of flatting agent, 5% of thickening agent, 10% of propylene glycol methyl ether acetate and 18% of butyl acetate, and after being uniformly mixed and stirred, the mixture is sprayed on the inner surface of a high borosilicate glass ware, wherein the spraying thickness is 8 mu m;
(3) Spraying a bottom layer: the bottom raw materials are prepared according to the following mass percentages: 50% of modified organic silicon resin, 5% of modified epoxy resin, 10% of toner, 5% of filler, 12% of propylene glycol methyl ether acetate and 18% of butyl acetate are uniformly mixed and stirred, then sprayed on the upper surface of a bonding layer, the sprayed thickness is 18 mu m, and then the surface is dried for 4min at 93 ℃, and the mixture is cooled to room temperature;
(4) Spraying a surface layer: the bottom raw materials are prepared according to the following mass percentages: 50% of modified organic silicon resin, 2% of PTFE micro powder, 4% of modified epoxy resin, 10% of toner, 0.5% of coloring aluminum powder, 7% of filler, 1.5% of flatting agent, 10% of propylene glycol methyl ether acetate and 15% of butyl acetate, and after being mixed and stirred uniformly, the mixture is sprayed on the upper surface of a bottom layer, and the spraying thickness is 12 mu m;
(5) Sintering: and (3) placing the high borosilicate glass ware treated in the step (4) into a sintering furnace, sintering for 5min at the temperature of 280 ℃, and naturally cooling after sintering to obtain a final product.
Example 5
The high borosilicate glass ware coated with the non-stick coating provided in the embodiment is prepared by the following steps:
(1) Pretreatment of the inner surface of the high borosilicate glass vessel: degreasing and cleaning, hot water cleaning and pure water cleaning are sequentially carried out on the inner surface of the high borosilicate glass vessel, and the inner surface is dried after cleaning;
(2) And (3) spraying an adhesive layer: the adhesive layer raw materials are prepared according to the following mass percentages: 20% of modified epoxy resin, 35% of amino resin, 3% of flatting agent, 10% of thickening agent, 12% of propylene glycol methyl ether acetate and 20% of butyl acetate, and uniformly mixing and stirring, and then spraying the mixture on the inner surface of a high borosilicate glass ware, wherein the spraying thickness is 6 mu m;
(3) Spraying a bottom layer: the bottom raw materials are prepared according to the following mass percentages: 50% of modified organic silicon resin, 5% of modified epoxy resin, 12% of toner, 5% of filler, 12% of propylene glycol methyl ether acetate and 16% of butyl acetate are uniformly mixed and stirred, then sprayed on the upper surface of a bonding layer, the sprayed thickness is 20 mu m, and then the surface is dried for 4min at 93 ℃, and the mixture is cooled to room temperature;
(4) Spraying a surface layer: the bottom raw materials are prepared according to the following mass percentages: 52% of modified organic silicon resin, 1% of PTFE micro powder, 4% of modified epoxy resin, 10% of toner, 0.3% of coloring aluminum powder, 6% of filler, 1.7% of flatting agent, 10% of propylene glycol methyl ether acetate and 15% of butyl acetate, uniformly mixing and stirring, spraying on the upper surface of a bottom layer, wherein the spraying thickness is 12 mu m, and then spraying scattering points on the upper surface of a sprayed surface layer;
(5) Sintering: and (3) placing the high borosilicate glass ware treated in the step (4) into a sintering furnace, sintering for 5min at the temperature of 280 ℃, and naturally cooling after sintering to obtain a final product.
The glassware obtained by the embodiments provided herein, the inner surface of which was coated with a non-stick coating, was tested for inner surface properties according to the following criteria, which were specifically as follows:
1. surface Performance test of inner surface non-stick coating
1. Non-tackiness
According to GB/T32095.2-2015, non-stick surface Property and test Specification part 2 of household food Metal cooking appliances: the baked dough non-tackiness test described in 4.2.2 of the non-tackiness and abrasion resistance test Specification was performed, and the non-tackiness was evaluated in accordance with the specification of 5.1.2. The requirement reaches level I: the tortilla was removed from the non-stick surface and no residue remained.
2. Film thickness
The thickness of the coating film formed by spraying is measured by a thickness gauge with the precision of +/-2 mu m, and the thickness of the coating film is required to be more than or equal to 25 mu m.
3. Hardness of
The hardness of the non-stick coating was measured according to the pencil method required by GB/T6739-2006, and it was required to achieve a hardness of 3H.
4. Attachment fastness
According to GB/T32095.1-2015, non-stick surface Property and test Specification part 1 of household food Metal cooking appliances: the adhesion fastness test described in general requirement 6.2.5 of performance was performed by a cross-cut method, and it was required that the coating layer in the cross-cut region should not fall off in whole cells.
5. Acid resistance
According to GB/T32095.3-2015, non-stick surface Property and test Specification part 3 of household food Metal cooking appliances: the acid resistance test described in corrosion resistance test Specification 5.1 was performed. After the test, the soft cloth is wiped off, the non-sticking surface is inspected by a 4-time magnifying glass, and whether the surface coating is cracked or falls off is inspected.
6. Alkali resistance
According to GB/T32095.3-2015, non-stick surface Property and test Specification part 3 of household food Metal cooking appliances: the alkali resistance test described in corrosion resistance test Specification No. 5.2 was performed. After the test, the soft cloth is wiped off, the non-sticking surface is inspected by a 4-time magnifying glass, and whether the surface coating is cracked or falls off is inspected.
7. Resistance to salt water corrosion
According to GB/T32095.3-2015, non-stick surface Property and test Specification part 3 of household food Metal cooking appliances: the salt water corrosion resistance test described in corrosion resistance test Specification 5.3 was performed. After the test, the surface was washed with clean water and dried with soft cloth, and immediately visually inspected for cracking or peeling of the surface coating.
8. Dishwasher resistance test
The glassware coated with the non-stick coating is put into an US-type automatic dish washing machine, a detergent (recommended powdery detergent) is added, one cycle from the beginning to the completion comprises a drying cycle process, each cycle is carried out for 90 minutes at 60 ℃, 25 cycles are continuously carried out, and the defects of peeling, bubbles, color change, cracking and the like of the inner surface coating are required.
The test results are shown in Table 1.
Table 1: performance test of non-stick coating on inner surface
| Test item | Technical requirements | Test results |
| Non-tackiness | According to GB/T32095.2-2015 non-sticking test of baked dough cake | By passing through |
| Film thickness | Measured by a thickness gauge with the precision of +/-2 mu m, and the film thickness is more than or equal to 25 mu m | By passing through |
| Hardness of | The required 3H hardness is determined according to GB/T6739-2006 | By passing through |
| Attachment fastness | According to GB/T32095.1-2015 test | By passing through |
| Acid resistance | According to GB/T32095.3-2015 test | By passing through |
| Alkali resistance | According to GB/T32095.3-2015 test | By passing through |
| Resistance to salt water corrosion | According to GB/T32095.3-2015 test | By passing through |
| Dishwasher resistance test | Each cycle was continued for 25 cycles at 60℃for 90 minutes | By passing through |
2. High temperature resistance test
The glass ware coated with the non-stick coating is subjected to high temperature resistance test, and the bonding force of the glass ware coated with the non-stick coating on the inner surface is strong due to the adoption of the high temperature adhesive, and the glass ware can withstand high temperature of 250-260 ℃ after being tested.
3. Performance test of high borosilicate glassware
The high borosilicate glass ware prepared by the invention was subjected to heat resistance and thermal shock resistance tests, and the results are shown in Table 2.
Through the performance test, the glass ware coated with the non-stick coating overcomes the defects of the non-stick coating-free high-boron-silicon ware in use, so that the high-boron-silicon ware is easier to clean, no matter which food is baked, no adhesion exists, and the use is more convenient and labor-saving. The non-stick coating is resistant to daily corrosion of atmosphere, water vapor, oil, salt, sauce, vinegar, tea and various seasonings, has a safe use temperature of more than 250 ℃, a temperature difference resistance of more than 130 ℃, good coating adhesion, surface hardness of more than 3H, good non-stick property, easy cleaning, convenience and health.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (3)
1. A glassware coated with a non-stick coating, wherein: the glass substrate is provided with an inner surface, a layer of bonding layer is coated on the inner surface, a non-stick coating is coated on the bonding layer, the non-stick coating is connected with the inner surface of the glass substrate through the bonding layer for transition, and the non-stick coating comprises:
the bottom layer comprises the following components in percentage by mass:
the surface layer comprises the following components in percentage by mass:
the bonding layer comprises the following components in percentage by mass:
the leveling agent is selected from organosilicon modified polysiloxane or polyacrylate.
2. A non-stick coated glassware in accordance with claim 1, wherein: the bonding layer is composed of a high-temperature-resistant adhesive, and the spraying thickness of the bonding layer is 6-8 mu m.
3. A non-stick coated glassware in accordance with claim 2, wherein: the glass matrix is made of high borosilicate glass.
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