CN116396671A - Preparation method of water-based anti-fog coating - Google Patents
Preparation method of water-based anti-fog coating Download PDFInfo
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- CN116396671A CN116396671A CN202211625944.9A CN202211625944A CN116396671A CN 116396671 A CN116396671 A CN 116396671A CN 202211625944 A CN202211625944 A CN 202211625944A CN 116396671 A CN116396671 A CN 116396671A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 36
- 238000000576 coating method Methods 0.000 title claims abstract description 28
- 239000011248 coating agent Substances 0.000 title claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 59
- 239000000463 material Substances 0.000 claims abstract description 33
- 239000002994 raw material Substances 0.000 claims abstract description 33
- 229920001225 polyester resin Polymers 0.000 claims abstract description 27
- 239000004645 polyester resin Substances 0.000 claims abstract description 27
- 239000011521 glass Substances 0.000 claims abstract description 26
- 239000006184 cosolvent Substances 0.000 claims abstract description 25
- 239000003607 modifier Substances 0.000 claims abstract description 22
- 239000003973 paint Substances 0.000 claims abstract description 20
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 19
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 19
- 239000008367 deionised water Substances 0.000 claims abstract description 19
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 13
- 239000004094 surface-active agent Substances 0.000 claims abstract description 13
- 239000013530 defoamer Substances 0.000 claims abstract description 7
- 239000002562 thickening agent Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 56
- 239000003795 chemical substances by application Substances 0.000 claims description 52
- 239000003365 glass fiber Substances 0.000 claims description 51
- 238000010438 heat treatment Methods 0.000 claims description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 24
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 18
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 17
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 15
- 238000002844 melting Methods 0.000 claims description 15
- 230000008018 melting Effects 0.000 claims description 15
- 229920005989 resin Polymers 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000005498 polishing Methods 0.000 claims description 12
- 150000007519 polyprotic acids Polymers 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 10
- 238000007788 roughening Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 7
- 150000005846 sugar alcohols Polymers 0.000 claims description 7
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 6
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 6
- 235000019738 Limestone Nutrition 0.000 claims description 6
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 6
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 6
- 239000002518 antifoaming agent Substances 0.000 claims description 6
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 6
- 238000010790 dilution Methods 0.000 claims description 6
- 239000012895 dilution Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 6
- 239000006028 limestone Substances 0.000 claims description 6
- 239000001630 malic acid Substances 0.000 claims description 6
- 235000011090 malic acid Nutrition 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000004513 sizing Methods 0.000 claims description 6
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 claims description 6
- 239000006004 Quartz sand Substances 0.000 claims description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 5
- 239000004327 boric acid Substances 0.000 claims description 5
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 5
- 238000005238 degreasing Methods 0.000 claims description 5
- 239000010459 dolomite Substances 0.000 claims description 5
- 229910000514 dolomite Inorganic materials 0.000 claims description 5
- 239000010436 fluorite Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 239000010446 mirabilite Substances 0.000 claims description 5
- 229910052903 pyrophyllite Inorganic materials 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 5
- 239000012257 stirred material Substances 0.000 claims description 5
- 239000002270 dispersing agent Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 230000014759 maintenance of location Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 9
- 229920005862 polyol Polymers 0.000 description 5
- 150000003077 polyols Chemical class 0.000 description 5
- 238000010298 pulverizing process Methods 0.000 description 4
- 238000005282 brightening Methods 0.000 description 3
- 239000007822 coupling agent Substances 0.000 description 3
- 239000003623 enhancer Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 206010047513 Vision blurred Diseases 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 238000010902 jet-milling Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000011858 nanopowder Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Classifications
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- 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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a preparation method of a water-based anti-fog coating, which comprises a first component and a second component, wherein the first component comprises the following raw materials in parts by weight: 60-70 parts of water-based polyester resin base stock, 20-30 parts of deionized water, 10-16 parts of surfactant, 15-25 parts of antifogging modifier, 5-7 parts of cosolvent, 6-7 parts of antioxidant, 3-5 parts of defoamer, 4-5 parts of thickener and 3-5 parts of color filler. In actual use, the invention not only greatly improves the antifogging property, the adhesive force, the color retention and the stain resistance of the paint through the water-based polyester resin, but also can effectively enhance the hardness and the scratch resistance of a paint film by utilizing the nano glass powder, can be applied to materials with antifogging requirements, such as windshields, glasses, helmets and the like, effectively solves the problems that the surface paint falls off and the antifogging effect is lost, and has remarkable improvement on the prior art.
Description
Technical Field
The invention relates to the field of water-based anti-fog paint, in particular to a preparation method of water-based anti-fog paint.
Background
The fogging in daily life causes a plurality of inconveniences to our lives, and a plurality of materials are easy to fog, such as automobile windshields, motorcycle helmets and glasses; the fog is composed of countless small water drops, when the water vapor in the air is too much in autumn and winter, the hot air hits the cold object and condenses into the small water drops on the surface of the cold object, and the light rays hit the surface of the small water drops to generate diffuse reflection, so that the light transmittance of the material is reduced, and the fog is perceived by people. The fog causes the originally clear material to become hazy and blurred, which can affect the vision of people, and then accidents are easy to generate, and investigation shows that the generation reasons of many traffic accidents are caused by the blurred vision.
The application of the prior anti-fog paint can solve the problem of fog, the anti-fog paint ensures that the surface of a substrate has super-hydrophilic property, increases the surface tension of water, ensures that water cannot form water drops on the surface of the substrate, is flattened on the surface of the substrate to form a water film, ensures that light passes normally, does not influence vision, and has the anti-fog effect.
However, in practical use, the paint has the following disadvantages:
1. many antifog coating hardness is insufficient, and the scratch-proof effect is poor, and some exogenic actions make surface coating drop easily, lose antifog effect.
2. The existing water-based anti-fog paint has poor temperature resistance, and can be dropped due to insufficient temperature resistance.
For the problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention aims to provide a preparation method of an aqueous anti-fog coating, which aims to solve the problems in the prior art.
(II) technical scheme
In order to solve the problems in the background art, the invention adopts the following specific technical scheme:
the water-based anti-fog coating comprises a first component and a second component, wherein the first component comprises the following raw materials in parts by weight:
60-70 parts of water-based polyester resin base stock, 20-30 parts of deionized water, 10-16 parts of surfactant, 15-25 parts of antifogging modifier, 5-7 parts of cosolvent, 6-7 parts of antioxidant, 3-5 parts of defoamer, 4-5 parts of thickener and 3-5 parts of color filler.
Preferably, the second component comprises the following raw materials in parts by weight:
4-6 parts of nano glass powder, 6-8 parts of glass fiber powder, 2-3 parts of silane coupling agent, 3-4 parts of impregnating compound and 3-4 parts of polishing agent.
Preferably, the preparation method of the aqueous polyester resin base material comprises the following steps:
s01: adding polyalcohol and polybasic acid into a reaction kettle, adding an antioxidant, introducing nitrogen for protection in the whole process, heating to 130-150 ℃, stirring, maintaining the temperature at 130-150 ℃ and maintaining the temperature for 30-50min.
S02: heating to 240-260 ℃ at a heating rate of 10-12 ℃/min, preserving heat to a clear point, ensuring that the acid value is 5-9mgKOH/g, and cooling to 160-180 ℃.
S03: adding trimellitic anhydride, and preserving heat until the resin is transparent, thus obtaining the resin with the acid value of 20-35mgKOH/g and the hydroxyl value of 60-70 mgKOH/g.
S04: cooling to 80-100deg.C, adding cosolvent glycol monobutyl ether, adjusting to solid mass fraction of 60-70%, stirring, adding neutralizer, and adjusting pH to 8.0-9.0.
S05: and adding a certain amount of deionized water for dilution until the solid mass fraction is 48-50%, and finally discharging the aqueous polyester resin.
Preferably, nitrogen is added to the reaction kettle for protection before preparation.
Preferably, the polyol is one or both of ethylene glycol and propylene glycol, and the polybasic acid is one or more of succinic acid, malic acid and phthalic acid.
Preferably: the preparation method of the glass fiber powder comprises the following steps:
s111: firstly, raw materials of glass fiber, namely quartz sand, alumina, pyrophyllite, limestone, dolomite, boric acid, sodium carbonate, mirabilite and fluorite are sequentially put into a pulverizer for pulverizing for 30-40min, and a pulverized material is obtained.
S112: uniformly stirring the crushed materials for 20-30min by a stirrer, putting the stirred materials into a melting furnace for melting, controlling the melting temperature to 900-100 ℃ and the dissolving time to 120-140min, and obtaining the dissolved materials.
S113: and (3) drawing the dissolved product, wherein the drawing temperature is controlled at 1200-1300 ℃, and the fiber obtained after drawing is subjected to forced cooling, so that the high-temperature liquid fiber is rapidly cooled to form the glass fiber.
S114: and (3) putting the glass fibers into a grinder to grind for 20-30min to obtain a glass fiber powder finished product.
Preferably, the raw material of the glass fiber is subjected to high-temperature degreasing treatment before being crushed, so that the surface of the raw material can be soaked by water, preparation for roughening treatment is performed, and then the raw material is also soaked by coarse liquid for 3-4min, and the temperature of the roughening liquid is controlled to be 34-36 ℃.
The inventor of the invention discovers that the hardness performance of the product is obviously reduced without adding nano glass powder, and the hardness performance of the product without adding an anti-fog modifier is slightly reduced, so that the hardness of the coating can be obviously improved through the nano glass powder and the anti-fog modifier;
the gloss of the product is obviously reduced without adding the gloss enhancer, so that the gloss of the coating can be obviously improved through the gloss enhancer;
in addition, the inventor of the invention discovers that the temperature resistance of the product is obviously reduced without adding glass fiber powder and the antifogging modifier, and the temperature resistance of the product is slightly reduced by adding the silane coupling agent, so that the temperature resistance of the coating can be effectively improved by adding the glass fiber powder, the antifogging modifier and the silane coupling agent.
The invention also provides a preparation method of the water-based anti-fog paint, which comprises the following steps:
s201: sequentially adding the aqueous polyester resin base material, deionized water and the cosolvent into a stirrer for mixing, and heating to 80-90 ℃ for 30-40min to obtain a first stirring agent.
S202: sequentially adding a surfactant, an antifogging modifier, a cosolvent, an antioxidant, a defoaming agent, a viscous agent and a color filler into the first stirring agent, and stirring for 20-30min to obtain a second stirring agent.
S203: sequentially adding nano glass powder, glass fiber powder, a silane coupling agent, a sizing agent and a polishing agent into a second stirring agent, stirring for 20-30min, heating at 70-80 ℃ for 2-3 h, and standing for 1-2 h to obtain a finished product.
(III) beneficial effects
Compared with the prior art, the invention provides a preparation method of the water-based anti-fog paint, which has the following beneficial effects:
(1) In actual use, the invention not only greatly improves the antifogging property, the large adhesive force, the excellent color retention and the good stain resistance of the paint through the water-based polyester resin, but also can effectively enhance the hardness and the scratch resistance of the paint film by utilizing the nano glass powder,
(2) In actual use, the glass fiber powder, the silane coupling agent, the impregnating compound and the brightening agent are adopted, so that the glass fiber powder and the matrix resin have good interface performance, have very good fluidity in the resin and are uniformly dispersed, and can endow the composite material with good physicochemical performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for preparing nano glass powder in an aqueous anti-fog coating according to an embodiment of the invention;
fig. 2 is a flowchart of a method of preparing an aqueous anti-fog coating according to an embodiment of the present invention.
Detailed Description
For the purpose of further illustrating the various embodiments, the present invention provides the accompanying drawings, which are a part of the disclosure of the present invention, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present invention, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.
According to an embodiment of the invention, a preparation method of an aqueous anti-fog coating is provided.
The invention will now be further described with reference to the accompanying drawings and detailed description, as shown in fig. 1-2, an aqueous anti-fog coating according to an embodiment of the invention, comprising a first component and a second component, the first component comprising the following raw materials in parts by weight:
60-70 parts of water-based polyester resin base stock, 20-30 parts of deionized water, 10-16 parts of surfactant, 15-25 parts of antifogging modifier, 5-7 parts of cosolvent, 6-7 parts of antioxidant, 3-5 parts of defoamer, 4-5 parts of thickener and 3-5 parts of color filler.
The second component of this embodiment comprises the following raw materials in parts by weight:
4-6 parts of nano glass powder, 6-8 parts of glass fiber powder, 2-3 parts of silane coupling agent, 3-4 parts of impregnating compound and 3-4 parts of polishing agent.
The preparation method of the aqueous polyester resin base material comprises the following steps:
s01: adding polyalcohol and polybasic acid into a reaction kettle, adding an antioxidant, introducing nitrogen for protection in the whole process, heating to 130-150 ℃, stirring, maintaining the temperature at 130-150 ℃ and maintaining the temperature for 30-50min.
S02: heating to 240-260 ℃ at a heating rate of 10-12 ℃/min, preserving heat to a clear point, ensuring that the acid value is 5-9mgKOH/g, and cooling to 160-180 ℃.
S03: adding trimellitic anhydride, and preserving heat until the resin is transparent, thus obtaining the resin with the acid value of 20-35mgKOH/g and the hydroxyl value of 60-70 mgKOH/g.
S04: cooling to 80-100deg.C, adding cosolvent glycol monobutyl ether, adjusting to solid mass fraction of 60-70%, stirring, adding neutralizer, and adjusting pH to 8.0-9.0.
S05: and adding a certain amount of deionized water for dilution until the solid mass fraction is 48-50%, and finally discharging the aqueous polyester resin.
Preferably, nitrogen is added to the reaction kettle for protection before preparation.
Preferably, the polyol is one or both of ethylene glycol and propylene glycol, and the polybasic acid is one or more of succinic acid, malic acid and phthalic acid.
The preparation method of the glass fiber powder comprises the following steps:
s111: firstly, raw materials of glass fiber, namely quartz sand, alumina, pyrophyllite, limestone, dolomite, boric acid, sodium carbonate, mirabilite and fluorite are sequentially put into a pulverizer for pulverizing for 30-40min, and a pulverized material is obtained.
S112: uniformly stirring the crushed materials for 20-30min by a stirrer, putting the stirred materials into a melting furnace for melting, controlling the melting temperature to 900-100 ℃ and the dissolving time to 120-140min, and obtaining the dissolved materials.
S113: and (3) drawing the dissolved product, wherein the drawing temperature is controlled at 1200-1300 ℃, and the fiber obtained after drawing is subjected to forced cooling, so that the high-temperature liquid fiber is rapidly cooled to form the glass fiber.
S114: and (3) putting the glass fibers into a grinder to grind for 20-30min to obtain a glass fiber powder finished product.
Preferably, the raw material of the glass fiber is subjected to high-temperature degreasing treatment before being crushed, so that the surface of the raw material can be soaked by water, preparation for roughening treatment is performed, and then the raw material is also soaked by coarse liquid for 3-4min, and the temperature of the roughening liquid is controlled to be 34-36 ℃.
The preparation method of the water-based anti-fog paint comprises the following steps:
step one: sequentially adding the aqueous polyester resin base material, deionized water and the cosolvent into a stirrer for mixing, and heating to 80-90 ℃ for 30-40min to obtain a first stirring agent.
Step two: sequentially adding a surfactant, an antifogging modifier, a cosolvent, an antioxidant, a defoaming agent, a viscous agent and a color filler into the first stirring agent, and stirring for 20-30min to obtain a second stirring agent.
Step three: sequentially adding nano glass powder, glass fiber powder, a silane coupling agent, a sizing agent and a polishing agent into a second stirring agent, stirring for 20-30min, heating at 70-80 ℃ for 2-3 h, and standing for 1-2 h to obtain a finished product.
Example 1.
The preparation method of the water-based anti-fog coating comprises a first component and a second component, wherein the first component comprises the following raw materials in parts by weight:
60 parts of aqueous polyester resin base stock, 20 parts of deionized water, 10 parts of surfactant, 15 parts of antifogging modifier, 5 parts of cosolvent, 6 parts of antioxidant, 3 parts of defoamer, 4 parts of thickener and 3 parts of color filler.
The second component of this embodiment comprises the following raw materials in parts by weight:
4 parts of nano glass powder, 6 parts of glass fiber powder, 2 parts of silane coupling agent, 3 parts of impregnating compound and 3 parts of polishing agent.
The preparation method of the aqueous polyester resin base material comprises the following steps:
s01: adding polyalcohol and polybasic acid into a reaction kettle, adding an antioxidant, introducing nitrogen for protection in the whole process, heating to 130 ℃, starting stirring, preserving heat at 130 ℃ and preserving heat for 30min.
S02: heating to 240 ℃ at a heating rate of 10 ℃/min, preserving heat to a clear point, ensuring that the acid value is 5mgKOH/g, and cooling to 160 ℃.
S03: trimellitic anhydride was added and the temperature was kept until the resin was transparent, to give a resin having an acid value of 20mgKOH/g and a hydroxyl value of 60 mgKOH/g.
S04: cooling to 80deg.C, adding cosolvent glycol monobutyl ether, adjusting to solid mass fraction of 60%, stirring, adding neutralizer, and adjusting pH to 8.0.
S05: and adding a certain amount of deionized water for dilution until the solid mass fraction is 48%, and finally discharging the water-based polyester resin.
Preferably, nitrogen is added to the reaction kettle for protection before preparation.
Preferably, the polyol is one or both of ethylene glycol and propylene glycol, and the polybasic acid is one or more of succinic acid, malic acid and phthalic acid.
The preparation method of the nano glass powder comprises the following steps of;
s101: and sequentially and uniformly stirring the silicon dioxide, the aluminum oxide, the feldspar, the limestone, the lead material, the boron material and the auxiliary agent in a stirrer for 30min to obtain a mixture.
S102: the mixture was placed in a high temperature furnace, melted at 800 ℃ for 2 hours, and then poured into cold water for quenching.
S103: drying the coarse powder to coarse powder, grinding the coarse powder into superfine powder, and classifying the superfine powder into the target nano powder product through jet milling.
Preferably: the hydrophilic dispersant is added into the nano glass powder during drying and coarse grinding, and the composite dispersant is added into the nano glass powder during superfine grinding into superfine powder.
The preparation method of the water-based anti-fog paint comprises the following steps:
step one: sequentially adding the aqueous polyester resin base material, deionized water and the cosolvent into a stirrer for mixing, and heating to 80 ℃ for 30min to obtain a first stirring agent.
Step two: sequentially adding a surfactant, an antifogging modifier, a cosolvent, an antioxidant, a defoaming agent, a viscous agent and a color filler into the first stirring agent, and stirring for 20min to obtain a second stirring agent.
Step three: sequentially adding nano glass powder, glass fiber powder, a silane coupling agent, a sizing agent and a polishing agent into a second stirring agent, stirring for 20min, heating at 70 ℃ for 2h, and standing for 1h to obtain a finished product.
Example 2.
The water-based anti-fog coating comprises a first component and a second component, wherein the first component comprises the following raw materials in parts by weight:
65 parts of aqueous polyester resin base stock, 25 parts of deionized water, 13 parts of surfactant, 20 parts of antifogging modifier, 6 parts of cosolvent, 6.5 parts of antioxidant, 4 parts of defoamer, 4.5 parts of thickener and 4 parts of color filler.
The second component of this embodiment comprises the following raw materials in parts by weight:
5 parts of nano glass powder, 7 parts of glass fiber powder, 2.5 parts of silane coupling agent, 3.5 parts of impregnating compound and 3.5 parts of polishing agent.
The preparation method of the aqueous polyester resin base material comprises the following steps:
s01: adding polyalcohol and polybasic acid into a reaction kettle, adding an antioxidant, introducing nitrogen for protection in the whole process, heating to 140 ℃, starting stirring, preserving heat at 140 ℃, and preserving heat for 40min.
S02: heating to 250 ℃ at a heating rate of 11 ℃/min, preserving heat to a clear point, ensuring that the acid value is 7mgKOH/g, and cooling to 170 ℃.
S03: trimellitic anhydride was added and the temperature was kept until the resin was transparent, to give a resin having an acid value of 30mgKOH/g and a hydroxyl value of 65 mgKOH/g.
S04: cooling to 90 ℃, adding cosolvent ethylene glycol monobutyl ether, adjusting to 65% of solid mass fraction, stirring, adding neutralizing agent, and adjusting pH value to 8.5.
S05: and adding a certain amount of deionized water for dilution until the solid mass fraction is 49%, and finally discharging the water-based polyester resin.
Preferably, nitrogen is added to the reaction kettle for protection before preparation.
Preferably, the polyol is one or both of ethylene glycol and propylene glycol, and the polybasic acid is one or more of succinic acid, malic acid and phthalic acid.
The preparation method of the glass fiber powder comprises the following steps:
s111: firstly, raw materials of glass fibers, namely quartz sand, alumina, pyrophyllite, limestone, dolomite, boric acid, sodium carbonate, mirabilite and fluorite are sequentially put into a pulverizer for pulverizing for 35min, and a pulverized material is obtained.
S112: uniformly stirring the crushed materials for 25min by a stirrer, putting the stirred materials into a melting furnace for melting, controlling the melting temperature at 950 ℃ and the dissolving time at 130min to obtain the dissolved materials.
S113: and (3) drawing the dissolved product, wherein the drawing temperature is controlled at 1250 ℃, and the fiber yarn obtained after drawing is subjected to forced cooling, so that the high-temperature liquid fiber is rapidly cooled to form the glass fiber.
S114: and (5) putting the glass fibers into a grinder to grind for 25min to obtain a glass fiber powder finished product.
Preferably, the raw material of the glass fiber is subjected to high-temperature degreasing treatment before being crushed, so that the surface of the raw material can be soaked by water, preparation for roughening treatment is performed, and then the raw material is also soaked by coarse liquid for 3.4min, and the temperature of the roughening liquid is controlled to be 35 ℃.
The preparation method of the water-based anti-fog paint comprises the following steps:
step one: sequentially adding the aqueous polyester resin base material, deionized water and the cosolvent into a stirrer for mixing, heating to 85 ℃, and stirring for 35min to obtain a first stirring agent.
Step two: sequentially adding a surfactant, an antifogging modifier, a cosolvent, an antioxidant, a defoaming agent, a viscous agent and a color filler into the first stirring agent, and stirring for 25min to obtain a second stirring agent.
Step three: sequentially adding nano glass powder, glass fiber powder, a silane coupling agent, a sizing agent and a polishing agent into a second stirring agent, stirring for 25min, heating at 75 ℃ for 2.5h, and standing for 1.5h to obtain a finished product.
Example 3.
An aqueous anti-fog coating of the present embodiment comprises a first component and a second component, the first component comprises the following raw materials in parts by weight:
70 parts of aqueous polyester resin base stock, 30 parts of deionized water, 16 parts of surfactant, 25 parts of antifogging modifier, 7 parts of cosolvent, 7 parts of antioxidant, 5 parts of defoamer, 5 parts of thickener and 5 parts of color filler.
The second component of this embodiment comprises the following raw materials in parts by weight:
6 parts of nano glass powder, 8 parts of glass fiber powder, 3 parts of silane coupling agent, 4 parts of impregnating compound and 4 parts of polishing agent.
The preparation method of the aqueous polyester resin base material comprises the following steps:
s01: adding polyalcohol and polybasic acid into a reaction kettle, adding an antioxidant, introducing nitrogen for protection in the whole process, heating to 150 ℃, starting stirring, preserving heat at 150 ℃, and preserving heat for 50min.
S02: heating to 260 ℃ at a heating rate of 12 ℃/min, preserving heat to a clear point, ensuring that the acid value is 9mgKOH/g, and cooling to 180 ℃.
S03: adding trimellitic anhydride, and preserving heat until the resin is transparent, thus obtaining the resin with the acid value of 20-35mgKOH/g and the hydroxyl value of 70 mgKOH/g.
S04: cooling to 100deg.C, adding cosolvent glycol monobutyl ether, adjusting to solid mass fraction of 70%, stirring, adding neutralizer, and adjusting pH to 9.0.
S05: and adding a certain amount of deionized water for dilution until the solid mass fraction is 50%, and finally discharging the water-based polyester resin.
Preferably, nitrogen is added to the reaction kettle for protection before preparation.
Preferably, the polyol is one or both of ethylene glycol and propylene glycol, and the polybasic acid is one or more of succinic acid, malic acid and phthalic acid.
The preparation method of the glass fiber powder comprises the following steps:
s111: firstly, raw materials of glass fiber, namely quartz sand, alumina, pyrophyllite, limestone, dolomite, boric acid, sodium carbonate, mirabilite and fluorite are sequentially put into a pulverizer for pulverizing for 40min, and a pulverized material is obtained.
S112: uniformly stirring the crushed materials for 30min by a stirrer, putting the stirred materials into a melting furnace for melting, controlling the melting temperature to be 100 ℃ and the dissolving time to be 140min, thus obtaining the dissolved materials.
S113: and (3) drawing the dissolved product, wherein the drawing temperature is controlled at 300 ℃, and the fiber obtained after drawing is subjected to forced cooling, so that the high-temperature liquid fiber is rapidly cooled to form the glass fiber.
S114: and (3) putting the glass fibers into a grinder to grind for 30min to obtain a glass fiber powder finished product.
Preferably, the raw material of the glass fiber is subjected to high-temperature degreasing treatment before being crushed, so that the surface of the raw material can be soaked by water, preparation for roughening treatment is performed, and then the raw material is also soaked by a coarse liquid for 4 minutes, and the temperature of the roughening liquid is controlled to be 36 ℃.
The preparation method of the water-based anti-fog paint comprises the following steps:
step one: sequentially adding the aqueous polyester resin base material, deionized water and the cosolvent into a stirrer for mixing, heating to 90 ℃, and stirring for 40min to obtain a first stirring agent.
Step two: sequentially adding a surfactant, an antifogging modifier, a cosolvent, an antioxidant, a defoaming agent, a viscous agent and a color filler into the first stirring agent, and stirring for 30min to obtain a second stirring agent.
Step three: sequentially adding nano glass powder, glass fiber powder, a silane coupling agent, a sizing agent and a polishing agent into a second stirring agent, stirring for 30min, heating at 80 ℃ for 3h, and standing for 2h to obtain a finished product.
Comparative example 1.
The difference from example 3 is that no nano glass frit was added.
Comparative example 2.
Unlike example 3, no glass fiber powder was added.
Comparative example 3.
The difference from example 3 is that no antifogging modifier was added.
Comparative example 4.
The difference from example 3 is that no silane-type coupling agent was added.
Comparative example 5.
The difference from example 3 is that no gloss enhancer was added.
The products of examples 1-3 and comparative examples 1-6 were subjected to performance testing;
the coatings of examples 1-3 and comparative examples 1-6 were tested for their performance at 37℃under conventional conditions as follows:
as can be seen from comparative examples 1-6 examples 1-3;
according to the invention, the hardness performance of the product is obviously reduced without adding the nano glass powder, and the hardness performance of the product without adding the anti-fog modifier is slightly reduced, so that the hardness of the coating can be obviously improved through the nano glass powder and the anti-fog modifier;
the gloss of the product is obviously reduced without adding the brightening agent, so that the gloss of the coating can be obviously improved through the brightening agent.
The invention makes a preferential investigation on the temperature resistance of the product, and the paint is damaged or falls off at different temperatures for testing.
As can be seen from comparative examples 1 to 6 and example 3, the temperature resistance of the product is remarkably reduced without adding glass fiber powder, the temperature resistance of the product is slightly reduced without adding an anti-fog modifier, and the temperature resistance of the product is slightly reduced by adding a silane type coupling agent, so that the temperature resistance of the coating can be effectively improved by adding the glass fiber powder, the anti-fog modifier and the silane type coupling agent.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. An aqueous anti-fog coating is characterized by comprising a first component and a second component, the first component comprises the following raw materials in parts by weight:
60-70 parts of water-based polyester resin base stock, 20-30 parts of deionized water, 10-16 parts of surfactant, 15-25 parts of antifogging modifier, 5-7 parts of cosolvent, 6-7 parts of antioxidant, 3-5 parts of defoamer, 4-5 parts of thickener and 3-5 parts of color filler.
2. The aqueous anti-fog coating according to claim 1, wherein the second component comprises the following raw materials in parts by weight:
4-6 parts of nano glass powder, 6-8 parts of glass fiber powder, 2-3 parts of silane coupling agent, 3-4 parts of impregnating compound and 3-4 parts of polishing agent.
3. The aqueous anti-fog coating according to claim 2, wherein the preparation method of the aqueous polyester resin base material comprises the following steps:
s01: adding polyalcohol and polybasic acid into a reaction kettle, adding an antioxidant, introducing nitrogen for protection in the whole process, heating to 130-150 ℃, starting stirring, maintaining the temperature at 130-150 ℃ and maintaining the temperature for 30-50min;
s02: heating to 240-260 ℃ at a heating rate of 10-12 ℃/min, preserving heat to a clear point, ensuring that the acid value is 5-9mgKOH/g, and cooling to 160-180 ℃;
s03: adding trimellitic anhydride, and preserving heat until the resin is transparent, thus obtaining resin with an acid value of 20-35mgKOH/g and a hydroxyl value of 60-70 mgKOH/g;
s04: cooling to 80-100deg.C, adding cosolvent glycol monobutyl ether, adjusting to solid mass fraction of 60-70%, stirring, adding neutralizer, and adjusting pH to 8.0-9.0;
s05: and adding a certain amount of deionized water for dilution until the solid mass fraction is 48-50%, and finally discharging the aqueous polyester resin.
4. A water-based anti-fog paint according to claim 3, wherein nitrogen is added into the reaction kettle for protection before preparation.
5. An aqueous anti-fog coating according to claim 3 wherein the polyhydric alcohol is one or both of ethylene glycol and propylene glycol and the polybasic acid is one or more of succinic acid, malic acid and phthalic acid.
6. The aqueous anti-fog coating according to claim 5, wherein the nano glass powder is added with a hydrophilic dispersing agent during drying and coarse grinding, and is added with a composite dispersing agent during superfine grinding into superfine powder.
7. The water-based anti-fog paint according to claim 1, wherein the preparation method of the glass fiber powder is as follows:
s111: firstly, sequentially adding raw materials of glass fibers, namely quartz sand, alumina, pyrophyllite, limestone, dolomite, boric acid, sodium carbonate, mirabilite and fluorite into a pulverizer to pulverize for 30-40min to obtain pulverized materials;
s112: uniformly stirring the crushed materials for 20-30min by a stirrer, and then putting the stirred materials into a melting furnace for melting, wherein the melting temperature is controlled at 900-100 ℃ and the dissolving time is 120-140min to obtain a dissolved material;
s113: drawing the dissolved product, controlling the drawing temperature to be 1200-1300 ℃, and forcedly cooling the fiber obtained after drawing to enable the high-temperature liquid fiber to be rapidly cooled to form glass fiber;
s114: and (3) putting the glass fibers into a grinder to grind for 20-30min to obtain a glass fiber powder finished product.
8. The aqueous anti-fog coating according to claim 7, wherein the glass fiber raw material is subjected to high-temperature degreasing treatment before being crushed, so that the surface of the glass fiber raw material can be soaked by water, preparation for roughening treatment is performed, and then the glass fiber raw material is also soaked by coarse liquid for 3-4min, and the temperature of the roughening liquid is controlled to be 34-36 ℃.
9. A method of preparing an aqueous anti-fog coating as claimed in any one of claims 1 to 8, comprising the steps of:
step one: sequentially adding the aqueous polyester resin base material, deionized water and the cosolvent into a stirrer for mixing, and heating to 80-90 ℃ for 30-40min to obtain a first stirring agent;
step two: sequentially adding a surfactant, an anti-fog modifier, a cosolvent, an antioxidant, a defoaming agent, a viscous agent and a color filler into the first stirring agent, and stirring for 20-30min to obtain a second stirring agent;
step three: sequentially adding nano glass powder, glass fiber powder, a silane coupling agent, a sizing agent and a polishing agent into a second stirring agent, stirring for 20-30min, heating at 70-80 ℃ for 2-3 h, and standing for 1-2 h to obtain a finished product.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1110993A2 (en) * | 1999-12-17 | 2001-06-27 | Mitsubishi Polyester Film, LLC | Anti-fog coating and coated film |
| CN109021804A (en) * | 2018-06-25 | 2018-12-18 | 湖南松井新材料股份有限公司 | Aqueous hand-feeling coating and its preparation method and application |
| CN114591668A (en) * | 2022-01-12 | 2022-06-07 | 广州昊毅新材料科技股份有限公司 | Water-based single-component high-hardness wear-resistant finish paint and terrace |
-
2022
- 2022-12-17 CN CN202211625944.9A patent/CN116396671A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1110993A2 (en) * | 1999-12-17 | 2001-06-27 | Mitsubishi Polyester Film, LLC | Anti-fog coating and coated film |
| CN109021804A (en) * | 2018-06-25 | 2018-12-18 | 湖南松井新材料股份有限公司 | Aqueous hand-feeling coating and its preparation method and application |
| CN114591668A (en) * | 2022-01-12 | 2022-06-07 | 广州昊毅新材料科技股份有限公司 | Water-based single-component high-hardness wear-resistant finish paint and terrace |
Non-Patent Citations (1)
| Title |
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| 勾运书等: "高性能防雾材料研究进展", 《涂料工业》, vol. 45, no. 10 * |
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