CN112341928A - Water-soluble polyurethane waterproof coating and preparation method thereof - Google Patents
Water-soluble polyurethane waterproof coating and preparation method thereof Download PDFInfo
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- CN112341928A CN112341928A CN202011142627.2A CN202011142627A CN112341928A CN 112341928 A CN112341928 A CN 112341928A CN 202011142627 A CN202011142627 A CN 202011142627A CN 112341928 A CN112341928 A CN 112341928A
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- Prior art keywords
- parts
- water
- waterproof coating
- soluble polyurethane
- polyurethane waterproof
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000576 coating method Methods 0.000 title claims abstract description 32
- 239000011248 coating agent Substances 0.000 title claims abstract description 30
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 21
- 239000004814 polyurethane Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title abstract description 11
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims abstract description 24
- CCJAYIGMMRQRAO-UHFFFAOYSA-N 2-[4-[(2-hydroxyphenyl)methylideneamino]butyliminomethyl]phenol Chemical compound OC1=CC=CC=C1C=NCCCCN=CC1=CC=CC=C1O CCJAYIGMMRQRAO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 12
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 12
- 241001330002 Bambuseae Species 0.000 claims abstract description 12
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims abstract description 12
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 12
- 239000011425 bamboo Substances 0.000 claims abstract description 12
- 239000001913 cellulose Substances 0.000 claims abstract description 12
- 229920002678 cellulose Polymers 0.000 claims abstract description 12
- 239000012046 mixed solvent Substances 0.000 claims abstract description 12
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003973 paint Substances 0.000 claims abstract description 7
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- AEDZKIACDBYJLQ-UHFFFAOYSA-N ethane-1,2-diol;hydrate Chemical compound O.OCCO AEDZKIACDBYJLQ-UHFFFAOYSA-N 0.000 claims description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 12
- 238000004321 preservation Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 3
- -1 fatty acid esters Chemical class 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical group OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical group CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 239000007798 antifreeze agent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 238000013008 moisture curing Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
- C09D175/16—Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
-
- 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
- C09D5/004—Reflecting paints; Signal paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention relates to a preparation method of a heat insulation coating, in particular to a water-soluble polyurethane waterproof coating and a preparation method thereof, belonging to the technical field of chemical compositions and preparation thereof, and the water-soluble polyurethane waterproof coating is characterized in that the coating comprises the following raw materials in parts by weight: 40-50 parts of polyurethane prepolymer; 1-2 parts of N-hydroxymethyl acrylamide; 3-9 parts of dibutyl phthalate; 8-22 parts of high-titanium powder; 0.1-0.3 part of defoaming agent; 3-10 parts of bamboo cellulose; 9-15 parts of a mixed solvent; the mixed solvent is a mixture of xylitol-sinapyl alcohol-p-hydroxyphenyllignin and ethylene glycol monobutyl ether with water, the weight ratio is 4:3:10, and the invention has the beneficial effects that: the paint has the characteristics of strong chemical resistance, high temperature resistance, good weather resistance, good stain resistance and strong self-cleaning property, and also ensures that the material with the functions of reflection, heat insulation and heat preservation is firmly bonded in the paint, thereby prolonging the service life of the paint.
Description
Technical Field
The invention relates to a preparation method of a heat insulation coating, in particular to a water-soluble polyurethane waterproof coating and a preparation method thereof, belonging to the technical field of chemical compositions and preparation thereof.
Background
Building energy conservation is one of the key points of energy-saving work in China, and external wall external heat preservation becomes a main product of building energy conservation. For areas mainly used for heat preservation in thermal engineering design, such as severe cold areas and cold areas, external wall external heat preservation is reasonable, applicable and fast in development. For the hot and warm areas in summer, which are generally only considered for heat insulation during thermal design, or the hot and cold areas in summer, which are mainly used for heat insulation during thermal design, a further perfect space exists for the external heat insulation of some external walls at present. Aiming at the climatic characteristics of different areas, various heat insulation coatings are reasonably selected and used to form a composite system, so that the heat is insulated, and the purposes of comfortable indoor thermal environment, energy conservation and consumption reduction are achieved.
However, people need to consider weather resistance and antifouling property of the heat insulation coating, and the exterior wall coating is in direct contact with the external atmospheric environment and needs to withstand the challenges of weather, rain, ultraviolet rays and the like, so that the heat insulation coating needs to have the performances of acid rain resistance, stain resistance, easy cleaning and the like. The WPU is introduced with the hydrophilic group, so that the water resistance of the coating is poor, and the requirement of the building waterproof coating cannot be met, and the corresponding performance can be improved through modification. The prior published literature reports a plurality of modification methods, for example, CN201310545598.8 discloses an aqueous polyurethane acrylate, an aqueous polyurethane ultraviolet-curable coating and a preparation method thereof, which solve the technical problems that the aqueous polyurethane coating in the prior art is harmful to the environment and cannot be cured by ultraviolet light, but a coating with light weight, high fire resistance, high weather resistance, environmental protection, difficult aging and long-term durability for external thermal insulation is prepared, so as to achieve the purpose of building energy saving, and no mature technology exists, so people are continuously researched and tested in the aspect of aqueous coatings at present.
Disclosure of Invention
The invention aims to provide a water-soluble polyurethane waterproof coating and a preparation method thereof, and the coating has the effects of good heat insulation effect, high weather resistance, environmental protection, difficult aging and long-acting effect.
The invention is realized by the following steps: the water-soluble polyurethane waterproof coating is characterized by comprising the following raw materials in parts by weight: 40-50 parts of polyurethane prepolymer; 1-2 parts of N-hydroxymethyl acrylamide; 3-9 parts of dibutyl phthalate; 8-22 parts of high-titanium powder; 0.1-0.3 part of defoaming agent; 3-10 parts of bamboo cellulose; 9-15 parts of a mixed solvent; the mixed solvent is a mixture of xylitol-sinapyl alcohol-p-hydroxyphenyllignin, ethylene glycol monobutyl ether and water, and the weight ratio is 4:3: 10.
The defoaming agent is methyl silicone oil.
The purity of the titanium dioxide of the high titanium powder is more than 97%, and the refraction and scattering of light can be enhanced by adding the high titanium powder. Therefore, the solar energy heat-insulating film has better reflection and heat-insulating properties and also has good light ray covering effect, thereby reflecting the solar near infrared band, improving the solar heat radiation reflection, reducing the solar heat absorption and preventing the accumulated temperature rise of the sun on the surface of an object.
The preparation method of the water-soluble polyurethane waterproof coating comprises the following steps: mixing N-hydroxymethyl acrylamide and a polyurethane prepolymer in a reaction kettle, reacting at the temperature of 80-150 ℃ for 2 hours, and adding dibutyl phthalate, high-titanium powder and bamboo cellulose; mixing the solvents, and uniformly mixing to obtain the water-soluble polyurethane waterproof coating product.
The water-soluble polyurethane waterproof coating disclosed by the invention also comprises the following raw materials: one or more of a flatting agent, an antifreeze agent and an anti-settling agent, the weight portion is 1-5; the flatting agent is polyacrylate solution; the antifreeze is 1, 3-propylene glycol; the anti-settling agent is N-methyl pyrrolidone solution of modified polyurea.
The polyurethane prepolymer is prepared by polymerizing isocyanate and polyether serving as main raw materials, has a molecular weight of 1000-4000 and NCO end groups, and has good physical properties, strong bonding force and normal-temperature moisture curing.
The N-hydroxymethyl acrylamide is white crystal powder, has a melting point of 74-75 ℃, is easily soluble in water and ethanol, is soluble in fatty acid esters, and is insoluble in hydrophobic solvents such as hydrocarbon, halogenated hydrocarbon and the like. When the aqueous solution is in the presence of an acid, the heating rapidly polymerizes to an insoluble resin. Crosslinking of linear polymers is most effective because of the polymeric vinyl groups and the condensation methylol groups contained in the molecular structure. If copolymerized with an acrylate monomer, the methylol group is introduced and can be crosslinked by heating alone.
The dibutyl phthalate is a plasticizer, and the product has good flexibility, stability, flexing resistance, cohesiveness and waterproofness which are superior to other plasticizers.
The water-soluble polyurethane waterproof coating can be applied to coating of common walls, roofs, steel frame structures, ship bodies or oil storage tanks.
The bamboo cellulose has strong wear resistance, and has natural antibacterial, bacteriostatic, mite-removing, deodorizing and ultraviolet-resistant functions.
The invention has the beneficial effects that: the paint has the characteristics of strong chemical resistance, high temperature resistance, good weather resistance, good stain resistance and strong self-cleaning property, and also ensures that the material with the functions of reflection, heat insulation and heat preservation is firmly bonded in the paint, thereby prolonging the service life of the paint.
Detailed Description
Example 1: 40 parts of polyurethane prepolymer; 1 part of N-hydroxymethyl acrylamide; 3 parts of dibutyl phthalate; 8 parts of high titanium powder; 0.1 part of defoaming agent; 3 parts of bamboo cellulose; 9 parts of a mixed solvent; the mixed solvent is a mixture of xylitol-sinapyl alcohol-p-hydroxyphenyllignin and ethylene glycol monobutyl ether with water in a weight ratio of 4:3:10, N-hydroxymethyl acrylamide and polyurethane prepolymer are mixed in a reaction kettle, the reaction temperature is 80 ℃, and dibutyl phthalate, high titanium powder and bamboo cellulose are added after 2 hours of reaction; mixing the solvents, and uniformly mixing to obtain the water-soluble polyurethane waterproof coating product.
Example 2: 45 parts of polyurethane prepolymer; 1 part of N-hydroxymethyl acrylamide; 6 parts of dibutyl phthalate; 16 parts of high titanium powder; 0.2 part of defoaming agent; 6 parts of bamboo cellulose; 12 parts of a mixed solvent; the mixed solvent is a mixture of xylitol-sinapyl alcohol-p-hydroxyphenyllignin and ethylene glycol monobutyl ether with water in a weight ratio of 4:3:10, N-hydroxymethyl acrylamide and polyurethane prepolymer are mixed in a reaction kettle, the reaction temperature is 100 ℃, and dibutyl phthalate, high titanium powder and bamboo cellulose are added after 2 hours of reaction; mixing the solvents, and uniformly mixing to obtain the water-soluble polyurethane waterproof coating product.
Example 3: 50 parts of polyurethane prepolymer; 2 parts of N-hydroxymethyl acrylamide; 9 parts of dibutyl phthalate; 22 parts of high titanium powder; 0.3 part of defoaming agent; 10 parts of bamboo cellulose; 15 parts of a mixed solvent; the mixed solvent is a mixture of xylitol-sinapyl alcohol-p-hydroxyphenyllignin and ethylene glycol monobutyl ether with water in a weight ratio of 4:3:10, N-hydroxymethyl acrylamide and polyurethane prepolymer are mixed in a reaction kettle, the reaction temperature is 150 ℃, and dibutyl phthalate, high titanium powder and bamboo cellulose are added after 2 hours of reaction; mixing the solvents, and uniformly mixing to obtain the water-soluble polyurethane waterproof coating product.
Claims (4)
1. The water-soluble polyurethane waterproof coating is characterized by comprising the following raw materials in parts by weight: 40-50 parts of polyurethane prepolymer; 1-2 parts of N-hydroxymethyl acrylamide; 3-9 parts of dibutyl phthalate; 8-22 parts of high-titanium powder; 0.1-0.3 part of defoaming agent; 3-10 parts of bamboo cellulose; 9-15 parts of a mixed solvent; the mixed solvent is a mixture of xylitol-sinapyl alcohol-p-hydroxyphenyllignin, ethylene glycol monobutyl ether and water, and the weight ratio is 4:3: 10.
2. The water-soluble polyurethane waterproof coating material as claimed in claim 1, wherein said defoaming agent is methyl silicone oil.
3. The water-soluble polyurethane waterproof paint as claimed in claim 1, wherein the purity of titanium dioxide of the high titanium powder is more than 97%.
4. The water-soluble polyurethane waterproof coating is characterized by comprising the following steps: mixing N-hydroxymethyl acrylamide and a polyurethane prepolymer in a reaction kettle, reacting at the temperature of 80-150 ℃ for 2 hours, and adding dibutyl phthalate, high-titanium powder and bamboo cellulose; mixing the solvents, and uniformly mixing to obtain the water-soluble polyurethane waterproof coating product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011142627.2A CN112341928A (en) | 2020-10-23 | 2020-10-23 | Water-soluble polyurethane waterproof coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011142627.2A CN112341928A (en) | 2020-10-23 | 2020-10-23 | Water-soluble polyurethane waterproof coating and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112341928A true CN112341928A (en) | 2021-02-09 |
Family
ID=74359840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011142627.2A Withdrawn CN112341928A (en) | 2020-10-23 | 2020-10-23 | Water-soluble polyurethane waterproof coating and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112341928A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114426792A (en) * | 2022-01-21 | 2022-05-03 | 广州市盛艺门业有限公司 | Baking varnish door plate with decorative veneer and manufacturing method thereof |
-
2020
- 2020-10-23 CN CN202011142627.2A patent/CN112341928A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114426792A (en) * | 2022-01-21 | 2022-05-03 | 广州市盛艺门业有限公司 | Baking varnish door plate with decorative veneer and manufacturing method thereof |
| CN114426792B (en) * | 2022-01-21 | 2022-12-23 | 广州市盛艺门业有限公司 | Baking varnish door plate with decorative veneer and manufacturing method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20210209 |