CN112126321A - Preparation method of surface coating of plastic-aluminum veneer - Google Patents
Preparation method of surface coating of plastic-aluminum veneer Download PDFInfo
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- CN112126321A CN112126321A CN202011092581.8A CN202011092581A CN112126321A CN 112126321 A CN112126321 A CN 112126321A CN 202011092581 A CN202011092581 A CN 202011092581A CN 112126321 A CN112126321 A CN 112126321A
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
- C09D163/10—Epoxy resins modified by unsaturated compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/66—Polyesters containing oxygen in the form of ether groups
- C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/672—Dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/43—Thickening agents
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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
- 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
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a preparation method of a surface coating of a plastic-aluminum veneer, which belongs to the technical field of coatings, and has the advantages of soft texture, flat and smooth surface, uniform color, good corrosion resistance, difficult pollution, good weather resistance, no fading, no discoloration, no cracking, firm and durable coating, simple production, dual functions of decoration and protection on aluminum foil and plastic plates, and excellent solvent resistance, scrubbing resistance, weather resistance and processability of a cured paint film.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a preparation method of a surface coating of a plastic-aluminum veneer.
Background
The plastic-aluminum veneer is a three-layer plate mainly used in the common decoration and finishing engineering and in a veneering construction mode, a core layer is plastic, an aluminum box is compounded on two surfaces of the plastic-aluminum veneer, and a decorative and protective coating or film is coated on the decorative surface of a product. The thickness of the double-sided aluminum foil of the veneer is generally not more than 0.20 mm. The appearance of the composite plate is similar to that of an aluminum-plastic composite plate, but the mechanical property, the construction mode, the application range and the like of the composite plate are different from those of the aluminum-plastic composite plate. As is well known, the aluminum-plastic composite board is a novel high-grade decorative material, has the characteristics of attractive appearance, durability, light weight, high strength, strong temperature adaptability, good fire resistance, strong acid resistance, good sound insulation, easy maintenance, simple and convenient cleaning and the like, becomes a very popular novel decorative material in recent years due to good decorative effect, has rapidly expanded application range, and is mainly applied to the condition of curtain walls. When the aluminum-plastic composite board is applied to decoration, advertisement, storefront, interior decoration and the like of low-rise buildings, advertising boards, storefront mounting, glass curtain wall liner boards, exterior wall external thermal insulation panels and the like, because the external acting force borne by the aluminum-plastic composite board is relatively small, and the construction mode is veneering construction, the requirement on the mechanical property of the decorative board is greatly reduced, and only the appearance effect is pursued, people use the plastic-aluminum veneer of the decorative board which is economical and practical and has the aluminum-plastic decorative effect, the product only has the requirement on the decorative effect and does not bear or only bear the condition of extremely small external force action, the decorative board with double attributes of attractiveness and economy occupies the main position on the market, the sales volume of the decorative board far exceeds that of aluminum-plastic composite boards for curtain walls, the plastic-aluminum veneer and the composite boards are different in the aspects of mechanical property, construction mode, application range and the like, and aluminum foil is easy to oxidize and darken, the color can be lost by friction, touch and the like, and the decorative effect is greatly influenced. In order to achieve good spraying effect, a high-voltage electrostatic spray gun is required for spraying. After the plastic aluminum veneer is used for a long time, the surface is easy to age, the plastic aluminum veneer is scrapped and re-coated by the traditional method, but the consumption cost is high, the steps are complicated, the surface coating aiming at the plastic aluminum veneer is still fresh in the market at present, and the technical personnel in the field need to develop a preparation method of the surface coating of the plastic aluminum veneer to meet the existing use requirement and performance requirement.
Disclosure of Invention
In view of this, the invention provides a preparation method of a surface coating for a plastic aluminum veneer.
A preparation method of a surface coating of a plastic aluminum veneer comprises the following steps,
adding 12-15 parts of dimethyl terephthalate, 2-4 parts of ethylene glycol, 3-7 parts of diethylene glycol, 1-3 parts of glycerol and 0.01-0.02 part of zinc acetate into a reaction kettle, heating to 150-170 ℃, reacting for 1-2 hours, heating to 180-190 ℃, preserving heat for 2 hours, heating to 210 ℃, preserving heat for 2 hours, cooling to 150 ℃, adding 3 parts of anhydrotrimellitic anhydride, heating to 170 ℃ after finishing addition, adding 2-3.5 parts of pyromellitic dianhydride after 1 hour of heat preservation, preserving heat for 1-2 hours at 170 ℃, cooling to below 130 ℃, adding 2-10 parts of cyclohexanone, adding triethanolamine below 60 ℃ to neutralize to a pH value of 7, diluting with water to obtain a slightly opalescent aqueous solution, and usually adding water to dilute to a solid content of 35-40% to obtain a diluent;
secondly, adding vinyl ester resin and an aqueous emulsifier in a 70 ℃ water bath according to the mass ratio of 70-75: 10-15: 10-20, adding the diluent obtained in the first step, then placing the diluent in a high-shear dispersion emulsifying machine, stirring at the rotating speed of 15000-16000 r/min, dropwise adding deionized water until a mixed system undergoes phase transfer, dropwise adding deionized water after 20-90 min until the solid content of the mixed system is 40% -50%, and continuously stirring for 20-30 min to obtain an aqueous vinyl ester resin mixed emulsion; adding a cross-linking agent, polyvinyl alcohol and coconut oil fatty acid diethanolamide in a water bath at 70 ℃ according to a mass ratio of 90:5:5, then placing the mixture in a high-shear dispersing emulsifying machine, stirring at a rotating speed of 1500-8000 r/min, dropwise adding deionized water, and dropwise adding deionized water after 3-5 hours until the solid content of a mixed system is 15% -20%, so as to obtain a water-soluble cross-linking agent emulsion; adding 100 parts of water-based vinyl ester resin mixed emulsion and 10-15 parts of water-soluble cross-linking agent emulsion into a container, stirring for 15-30 minutes, adding 0.1-2 parts of wetting agent and 0.3-3 parts of thickening agent while stirring, and continuously stirring for 10-20 minutes at the stirring speed of 800-1000 revolutions per minute; and reducing the stirring speed to 200-400 revolutions per minute, adding 5-15 parts of tackifier, and stirring for 5-15 minutes to obtain the plastic aluminum veneer surface coating.
Further, the cross-linking agent is one of tert-butyl peroxybenzoate, diisopropyl peroxydicarbonate and ammonium persulfate.
Further, the thickening agent is one of furcellaran, gelatin or organic bentonite.
Further, the wetting agent is one of dioctyl sodium sulfosuccinate or ethylene glycol polyoxyethylene alkyl aryl ether.
Further, the tackifier is one of polyethylene glycol and polyvinylpyrrolidone.
Further, the vinyl ester resin is one of bisphenol A type vinyl ester resin and phenolic aldehyde type vinyl ester resin.
The invention has the beneficial effects that:
the surface coating of the plastic-aluminum veneer disclosed by the preparation method disclosed by the invention is prepared by adopting the water-based vinyl ester resin emulsion, wherein the cured vinyl ester resin has good mechanical property and better mechanical property, the vinyl ester resin is completely participated in crosslinking curing, no micromolecule substance is separated out, the crosslinking density is high, the cured product is compact and firm, the ester bond content is low, and the surface coating is acid-resistant and alkali-resistant and has a certain resistance effect on an oxidizing medium and an organic solvent.
Compared with the prior art, the invention has the following advantages:
the surface coating of the plastic aluminum veneer is easy to age and dim and dull after being used for a long time, and the old method is to scrap and re-distribute the coating.
Detailed Description
Example 1
Adding 15 parts of dimethyl terephthalate, 4 parts of ethylene glycol, 7 parts of diethylene glycol, 3 parts of glycerol and 0.02 part of zinc acetate into a reaction kettle, heating to 170 ℃ for reaction for 2 hours, heating to 190 ℃, keeping the temperature for 2 hours, heating to 210 ℃, keeping the temperature for 2 hours, cooling to 150 ℃, adding 3 parts of anhydrotrimellitic anhydride, heating to 170 ℃ after finishing adding, keeping the temperature for 1 hour, adding 3.5 parts of pyromellitic dianhydride, keeping the temperature at 170 ℃ for 2 hours after adding, cooling to below 130 ℃, adding 10 parts of cyclohexanone, adding triethanolamine at below 60 ℃ for neutralization to a pH value of 7, diluting with water to obtain a slightly opalescent aqueous solution, and usually adding water to dilute to a solid content of 40% to obtain a diluent;
secondly, adding bisphenol A vinyl ester resin and an aqueous emulsifier in a 70 ℃ water bath according to a mass ratio of 75:15:120, and the diluent obtained in the first step, then placing the mixture in a high-shear dispersion emulsifying machine, stirring at a rotating speed of 16000r/min, dropwise adding deionized water until the mixed system undergoes phase transfer, dropwise adding deionized water after 90min until the solid content of the mixed system is 50%, and continuing stirring for 30min to obtain an aqueous vinyl ester resin mixed emulsion; thirdly, adding the cross-linking agent, polyvinyl alcohol and coconut oil fatty acid diethanolamide in a water bath at 70 ℃ according to a mass ratio of 90:5:5, then placing the mixture in a high-shear dispersing emulsifying machine, stirring the mixture at a rotating speed of 8000r/min, dropwise adding deionized water, and after 35 hours, dropwise adding the deionized water until the solid content of a mixed system is 15% to obtain water-soluble cross-linking agent emulsion; adding 100 parts of water-based vinyl ester resin mixed emulsion and 15 parts of water-soluble cross-linking agent emulsion into a container, stirring for 30 minutes, adding 2 parts of wetting agent and 3 parts of thickening agent while stirring, and continuing stirring for 20 minutes at the stirring speed of 1000 revolutions per minute; and reducing the stirring speed to 400 revolutions per minute, adding 15 parts of polyethylene glycol 4000 serving as a tackifier, and stirring for 15 minutes to obtain the plastic aluminum veneer surface coating, wherein the crosslinking agent is tert-butyl peroxybenzoate, the thickener is a sizing agent, and the wetting agent is dioctyl sodium sulfosuccinate.
Example 2
Adding 12 parts of dimethyl terephthalate, 2 parts of ethylene glycol, 3 parts of diethylene glycol, 1 part of glycerol and 0.01 part of zinc acetate into a reaction kettle, heating to 150 ℃ for reaction for 1 hour, heating to 180 ℃ and preserving heat for 2 hours, heating to 210 ℃ and preserving heat for 2 hours, cooling to 150 ℃, adding 3 parts of anhydrotrimellitic anhydride, heating to 170 ℃ after finishing adding, preserving heat for 1 hour, adding 25 parts of pyromellitic dianhydride, preserving heat for 1 hour at 170 ℃, cooling to below 130 ℃, adding 2 parts of cyclohexanone, adding triethanolamine at below 60 ℃ for neutralization until the pH value is 7, diluting with water to obtain a slightly opalescent aqueous solution, and usually adding water to dilute the solution until the solid content reaches 35% to obtain a diluent;
secondly, adding the phenolic vinyl ester resin and the aqueous emulsifier in a 70 ℃ water bath according to the mass ratio of 70:10:10, and the diluent obtained in the first step, then placing the mixture in a high-shear dispersion emulsifying machine, stirring at the rotating speed of 15000r/min, dropwise adding deionized water until the mixed system undergoes phase transfer, dropwise adding deionized water after 90min until the solid content of the mixed system is 50%, and continuing stirring for 30min to obtain an aqueous vinyl ester resin mixed emulsion; thirdly, adding the cross-linking agent, polyvinyl alcohol and coconut oil fatty acid diethanolamide in a water bath at 70 ℃ according to a mass ratio of 90:5:5, then placing the mixture in a high-shear dispersing emulsifying machine, stirring at a rotating speed of 1500r/min, dropwise adding deionized water, and dropwise adding the deionized water after 3 hours until the solid content of a mixed system is 20% to obtain a water-soluble cross-linking agent emulsion; adding 100 parts of water-based vinyl ester resin mixed emulsion and 15 parts of water-soluble cross-linking agent emulsion into a container, stirring for 15 minutes, adding 0.1 part of wetting agent and 3 parts of thickening agent while stirring, and continuing stirring for 10 minutes at the stirring speed of 1000 revolutions per minute; and reducing the stirring speed to 200 revolutions per minute, adding 15 parts of polyvinylpyrrolidone serving as a tackifier, and stirring for 15 minutes to obtain the surface coating of the plastic aluminum veneer, wherein the crosslinking agent is tert-butyl peroxybenzoate, the thickener is furcellaran, and the wetting agent is ethylene glycol polyoxyethylene alkyl aryl ether.
Comparative example 1
In this comparative example, compared to example 2, in the second step, the diluent component was omitted, except that the process steps were the same.
Comparative example 2
This comparative example compares to example 2 in the fourth step, the tackifier component was omitted, except that the process steps were the same.
Comparative example 3
This comparative example compares to example 2 in the fourth step, the wetting agent component is omitted, except that the process steps are otherwise identical.
Comparative example 4
This comparative example compares to example 2 in the fourth step, the thickener component is omitted except that the process steps are otherwise the same.
The performance test of the surface coatings of the plastic aluminum veneers of the examples 1-2 and the comparative examples 1-4 is carried out, and the test results are shown in the table 1
TABLE 1 Performance test results of the surface coatings of plastic aluminum panels of examples and comparative examples
Note: the salting-out resistance is carried out according to the specification of 6.15 in JG/T210-2018; the bending property is performed according to the specification of 7.2 in JC/T2090-2011; the water impermeability is carried out according to the regulation of 6 in JC/T2090-2011; the bonding strength is carried out according to the specification of 7.6 in GB/T23445-2009; the test base plate is placed for 2 hours at 55 ℃ after the aluminum-plastic composite plate surface is rolled and coated back and forth at 55 ℃, the test base plate is placed on a wood plate after being taken out, a roller with the corresponding specification of the base plate is used for roller coating (the roller is a roller used in the previous test or a new roller dipped with paint and tested after other plates are rolled and coated), 20g of the test base plate is placed on the base plate to start roller coating, the mode of one-over-one or one-left-right is 1 time, the test base plate is qualified after reaching more than 8 times, and the test time needs to be finished within 10min after the test base plate is taken; brushing a pattern sample on the front surface of a test base plate by using a brush for construction, wherein the coating amount is 100 mu m of wet film thickness, the long edge of the test plate is in the horizontal direction, the short edge and the horizontal plane form an angle of about 85 degrees and are vertically placed, the second sample is brushed by using the same method after the test plate is placed for 6h, and when the second sample is brushed, the brush runs without difficulty, so that the second sample can be considered to be 'brushed without obstacle'; appearance of the coating film the test plate after the test is finished is placed for 24h, the coating film is observed visually, and if no pin hole or sagging exists, the coating film is uniform, the coating film is considered to be normal; the drying time is determined according to the surface dry method B in GB/T1728-1979 (1989); resistance to artificial weather aging; appearance was rated according to cycle A of 9.5 in GB/T1865-2009, and results were rated according to GB/T1766; the scrub resistance was carried out as specified in GB/T9266.
Claims (6)
1. A preparation method of a surface coating of a plastic aluminum veneer is characterized by comprising the following steps,
adding 12-15 parts of dimethyl terephthalate, 2-4 parts of ethylene glycol, 3-7 parts of diethylene glycol, 1-3 parts of glycerol and 0.01-0.02 part of zinc acetate into a reaction kettle, heating to 150-170 ℃, reacting for 1-2 hours, heating to 180-190 ℃, preserving heat for 2 hours, heating to 210 ℃, preserving heat for 2 hours, cooling to 150 ℃, adding 3 parts of anhydrotrimellitic anhydride, heating to 170 ℃ after finishing addition, adding 2-3.5 parts of pyromellitic dianhydride after 1 hour of heat preservation, preserving heat for 1-2 hours at 170 ℃, cooling to below 130 ℃, adding 2-10 parts of cyclohexanone, adding triethanolamine below 60 ℃ to neutralize to a pH value of 7, diluting with water to obtain a slightly opalescent aqueous solution, and usually adding water to dilute to a solid content of 35-40% to obtain a diluent; secondly, adding vinyl ester resin and an aqueous emulsifier in a 70 ℃ water bath according to the mass ratio of 70-75: 10-15: 10-20, adding the diluent obtained in the first step, then placing the diluent in a high-shear dispersion emulsifying machine, stirring at the rotating speed of 15000-16000 r/min, dropwise adding deionized water until a mixed system undergoes phase transfer, dropwise adding deionized water after 50-90 min until the solid content of the mixed system is 40% -50%, and continuously stirring for 20-30 min to obtain an aqueous vinyl ester resin mixed emulsion; adding a cross-linking agent, polyvinyl alcohol and coconut oil fatty acid diethanolamide in a water bath at 70 ℃ according to a mass ratio of 90:5:5, then placing the mixture in a high-shear dispersing emulsifying machine, stirring at a rotating speed of 1500-8000 r/min, dropwise adding deionized water, and dropwise adding deionized water after 3-5 hours until the solid content of a mixed system is 15% -20%, so as to obtain a water-soluble cross-linking agent emulsion; adding 100 parts of water-based vinyl ester resin mixed emulsion and 10-15 parts of water-soluble cross-linking agent emulsion into a container, stirring for 15-30 minutes, adding 0.1-2 parts of wetting agent and 0.3-3 parts of thickening agent while stirring, and continuously stirring for 10-20 minutes at the stirring speed of 800-1000 revolutions per minute; and reducing the stirring speed to 200-400 revolutions per minute, adding 5-15 parts of tackifier, and stirring for 5-15 minutes to obtain the plastic aluminum veneer surface coating.
2. The method for preparing a surface coating of a plastic aluminum panel according to claim 1, wherein the cross-linking agent in step four is one of tert-butyl peroxybenzoate, diisopropyl peroxydicarbonate and ammonium persulfate.
3. The method for preparing a surface coating of a plastic aluminum veneer according to claim 1, wherein the thickener obtained in step four is one of furcellaran, gelatin or organobentonite.
4. The method for preparing a surface coating of a plastic aluminum veneer according to claim 1, wherein the wetting agent in the fourth step is one of dioctyl sodium sulfosuccinate or ethylene glycol polyoxyethylene alkyl aryl ether.
5. The method for preparing a surface coating of a plastic aluminum veneer according to claim 1, wherein the step four tackifier is one of polyethylene glycol and polyvinylpyrrolidone.
6. The method for preparing a surface coating of a plastic aluminum panel according to claim 1, wherein the divinyl ester resin is one of bisphenol a vinyl ester resin and phenolic vinyl ester resin.
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| CN202011092581.8A CN112126321A (en) | 2020-10-13 | 2020-10-13 | Preparation method of surface coating of plastic-aluminum veneer |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327682A (en) * | 2014-09-23 | 2015-02-04 | 黄厚生 | Waterborne polyester resin insulating varnish synthesis process |
| CN105176324A (en) * | 2015-08-14 | 2015-12-23 | 湖北华宁防腐技术股份有限公司 | Wear-resisting impact-resisting anti-corrosion coating layer and construction method thereof |
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- 2020-10-13 CN CN202011092581.8A patent/CN112126321A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327682A (en) * | 2014-09-23 | 2015-02-04 | 黄厚生 | Waterborne polyester resin insulating varnish synthesis process |
| CN105176324A (en) * | 2015-08-14 | 2015-12-23 | 湖北华宁防腐技术股份有限公司 | Wear-resisting impact-resisting anti-corrosion coating layer and construction method thereof |
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