CN114085576A - Water-based yellow-sealing coating and preparation method thereof - Google Patents
Water-based yellow-sealing coating and preparation method thereof Download PDFInfo
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- CN114085576A CN114085576A CN202111580748.XA CN202111580748A CN114085576A CN 114085576 A CN114085576 A CN 114085576A CN 202111580748 A CN202111580748 A CN 202111580748A CN 114085576 A CN114085576 A CN 114085576A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 238000007789 sealing Methods 0.000 title claims abstract description 64
- 238000000576 coating method Methods 0.000 title claims abstract description 25
- 239000011248 coating agent Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title description 12
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 46
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000004132 cross linking Methods 0.000 claims abstract description 46
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 31
- 239000003973 paint Substances 0.000 claims abstract description 31
- 239000002562 thickening agent Substances 0.000 claims abstract description 27
- 239000000080 wetting agent Substances 0.000 claims abstract description 26
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 21
- 239000006184 cosolvent Substances 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims description 13
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 9
- 239000006185 dispersion Substances 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 9
- 229920000570 polyether Polymers 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 6
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical compound CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 claims description 3
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 claims description 3
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 claims description 3
- RNFAKTRFMQEEQE-UHFFFAOYSA-N Tripropylene glycol butyl ether Chemical compound CCCCOC(CC)OC(C)COC(O)CC RNFAKTRFMQEEQE-UHFFFAOYSA-N 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 3
- -1 polydimethylsiloxane Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000008213 purified water Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 239000011094 fiberboard Substances 0.000 abstract description 11
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000003960 organic solvent Substances 0.000 abstract description 3
- 239000012855 volatile organic compound Substances 0.000 abstract description 3
- 239000003431 cross linking reagent Substances 0.000 abstract description 2
- 239000002904 solvent Substances 0.000 abstract description 2
- 239000002609 medium Substances 0.000 description 17
- 230000002209 hydrophobic effect Effects 0.000 description 6
- 238000005034 decoration Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; 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
- C09D7/20—Diluents or solvents
-
- 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
- C09D7/47—Levelling agents
-
- 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
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Abstract
The invention discloses a water-based yellow-sealing coating, which is characterized in that: the paint comprises water-based yellow-sealing self-crosslinking acrylic acid, water-based yellow-sealing solvent-free self-crosslinking acrylic acid, a film-forming cosolvent, water, a defoaming agent, a flatting agent, a wetting agent, powder and a thickening agent, wherein the components in percentage by mass are as follows: 20-22.5% of water-based yellow-sealing self-crosslinking acrylic acid, 20-22.5% of water-based yellow-sealing solvent-free self-crosslinking acrylic acid, 2.0-2.5% of film-forming cosolvent, 5-6% of water, 0.3-0.8% of defoaming agent, 0.2-1.5% of wetting agent, 0.2-1.5% of flatting agent, 40-42.5% of powder and 0.3-1.5% of thickening agent. The water-based paint disclosed by the invention takes water as a solvent, so that the use of an organic solvent is effectively reduced, and the discharge of VOCs is low; and the waterborne self-crosslinking acrylic acid can be used for sealing yellow without adding any curing agent and crosslinking agent, and the wetting agent and the leveling agent are added in the formula system to drive the whole paint liquid system to wet and flatly spread on the medium density fiberboard, so that the whole paint film has excellent compactness on the medium density fiberboard, and the yellow sealing effect is achieved.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a water-based yellow-sealing coating and a preparation method thereof.
Background
With the rapid development of social economy in China, the requirements of consumers on the quality of life are higher and higher, and the demand on high-grade solid wood furniture is greatly improved compared with the demand desire on plate-type furniture or artificial board furniture in home decoration and furniture purchase.
The water paint is a high molecular material using water as a dispersion medium instead of an organic solvent in the traditional oily paint, and has the advantages of no toxicity, no pollution, low odor, no combustion, no explosion and the like. However, the water-based paint on the market has single function, the hand feeling of a coating film and the smoothness of the coating film are improved mainly through the water-based polymer, and the water-based paint does not have the excellent yellow sealing function on a medium density fiberboard. Therefore, the invention provides the special yellow sealing coating for the surface decoration of the medium density fiberboard, and improves the surface decoration and comfort of the medium density fiberboard.
Disclosure of Invention
In view of the above, the present invention is directed to a water-based yellow-sealing coating and a preparation method thereof, wherein the coating liquid system of the water-based yellow-sealing coating is capable of providing an excellent yellow-sealing effect on medium density fiberboard.
In order to achieve the purpose, the invention adopts the following technical scheme:
a water-based yellow-sealing coating comprises water-based yellow-sealing self-crosslinking acrylic acid, water-based yellow-sealing solvent-free self-crosslinking acrylic acid, a film-forming cosolvent, water, a defoaming agent, a leveling agent, a wetting agent, powder and a thickening agent, wherein the water-based yellow-sealing self-crosslinking acrylic acid comprises the following components in percentage by mass:
preferably, the type of the water-based yellow-sealing self-crosslinking acrylic acid is WA-631.
Preferably, the type of the water-based solvent-free yellow-sealing self-crosslinking acrylic acid is PA-4850.
Preferably, the film-forming cosolvent is one or a combination of dipropylene glycol methyl ether, dipropylene glycol butyl ether, propylene glycol butyl ether and tripropylene glycol butyl ether.
Preferably, the water is purified water or deionized water.
Preferably, the defoaming agent is polydimethylsiloxane which is one or a combination of BYK024, BYK028, TEGO825 and TEGO 902W.
Preferably, the wetting agent is polyether modified siloxane or multifunctional modified siloxane, and the type of the wetting agent is one or a combination of TEGO270, BYK346 and TEGO 4100.
Preferably, the leveling agent is polyether siloxane copolymer, and the type of the polyether siloxane copolymer is TEGO410 or BYK333 or a combination of the TEGO410 and the BYK 333.
As a preferred scheme, the powder material is an inorganic substance which is one or more of CC902 calcium carbonate and R895 titanium dioxide; the thickener is an associated polyurethane thickener, and the model number of the thickener is Coapurxs 71.
The preparation method of the water-based yellow-sealing coating comprises the following steps
(1) Preparing raw materials, which comprise the following components in percentage by weight:
20-22.5% of water-based yellow-sealing self-crosslinking acrylic acid, 20-22.5% of water-based solvent-free yellow-sealing self-crosslinking acrylic acid, 2-2.5% of film-forming cosolvent, 7-8% of water, 0.3-0.8% of defoaming agent, 0.2-1.5% of flatting agent, 0.2-1.5% of wetting agent, 40-42.5% of powder and 0.3-1.5% of thickening agent;
(2) under the condition of normal temperature, adding aqueous yellow-sealed self-crosslinking acrylic acid and aqueous solvent-free yellow-sealed self-crosslinking acrylic acid in percentage into a high-speed dispersion machine, adding a mixed solution of a film-forming cosolvent and water, a defoaming agent, a wetting agent, a leveling agent, powder and a thickening agent at a medium speed, and stirring for 20-30 minutes;
(3) the detection fineness is less than or equal to 40 micrometers;
(4) detecting the pH value to be 7.5-9;
(5) spraying other bad paint film effects without shrinkage cavity;
(6) and taking out the finished product after the detection is qualified.
Compared with the prior art, the invention has obvious advantages and beneficial effects, and specifically, the technical scheme includes that:
the water-based paint disclosed by the invention takes water as a solvent, so that the use of an organic solvent is effectively reduced, and the discharge of VOCs is low; and the waterborne self-crosslinking acrylic acid can be used for sealing yellow without adding any curing agent and crosslinking agent, and the wetting agent and the leveling agent are added in the formula system to drive the whole paint liquid system to wet and flatly spread on the medium density fiberboard, so that the whole paint film has excellent compactness on the medium density fiberboard, and the yellow sealing effect is achieved.
To more clearly illustrate the features and effects of the present invention, the present invention is described in detail below with reference to specific examples.
Detailed Description
The invention discloses a water-based yellow-sealing coating, which comprises water-based yellow-sealing self-crosslinking acrylic acid, water-based yellow-sealing solvent-free self-crosslinking acrylic acid, a film-forming cosolvent, water, a defoaming agent, a flatting agent, a wetting agent, powder and a thickening agent, wherein the water-based yellow-sealing self-crosslinking acrylic acid comprises the following components in percentage by mass:
the type of the water-based yellow-sealing self-crosslinking acrylic acid is WA-631.
The type of the water-based solvent-free yellow-sealing self-crosslinking acrylic acid is PA-4850.
The film-forming cosolvent is one or a combination of dipropylene glycol methyl ether, dipropylene glycol butyl ether, propylene glycol butyl ether and tripropylene glycol butyl ether.
The water is purified water or deionized water.
The defoaming agent is polydimethylsiloxane which is one or a combination of BYK024, BYK028, TEGO825 and TEGO 902W.
The wetting agent is polyether modified siloxane or multifunctional modified siloxane, and the type of the wetting agent is one or a combination of TEGO270, BYK346 and TEGO 4100.
The leveling agent is polyether siloxane copolymer, and the number of the polyether siloxane copolymer is one or two of TEGO410 and BYK 333.
The powder material is an inorganic substance and is one or more of CC902 calcium carbonate and R895 titanium dioxide; the thickener is an associated polyurethane thickener, and the model number of the thickener is Coapurxs 71.
The invention also discloses a preparation method of the water-based yellow-sealing coating, which comprises the following steps
(1) Preparing raw materials, which comprise the following components in percentage by weight:
20-22.5% of water-based yellow-sealing self-crosslinking acrylic acid, 20-22.5% of water-based solvent-free yellow-sealing self-crosslinking acrylic acid, 2-2.5% of film-forming cosolvent, 7-8% of water, 0.3-0.8% of defoaming agent, 0.2-1.5% of flatting agent, 0.2-1.5% of wetting agent, 40-42.5% of powder and 0.3-1.5% of thickening agent.
(2) Under the condition of normal temperature, adding aqueous yellow-sealing self-crosslinking acrylic acid and aqueous solvent-free yellow-sealing self-crosslinking acrylic acid in percentage into a high-speed dispersion machine, adding a mixed solution of a film-forming cosolvent and water, a defoaming agent, a wetting agent, a leveling agent, powder and a thickening agent at a medium speed, and stirring for 20-30 minutes.
(3) The detection fineness is less than or equal to 40 micrometers.
(4) The pH value is detected to be 7.5-9.
(5) The spraying has no shrinkage cavity and other bad paint film effects.
(6) And taking out the finished product after the detection is qualified.
The following is a more detailed description with reference to specific examples.
Example 1
A water-based yellow-sealing coating and a preparation method thereof are disclosed, which comprises the following components:
preparing raw materials, adding aqueous yellow-sealing self-crosslinking acrylic acid and aqueous solvent-free yellow-sealing self-crosslinking acrylic acid in a conventional high-speed dispersion machine at 25 ℃, adding a mixed solution of a film-forming aid and water, a defoaming agent, a wetting agent, a leveling agent, a hydrophobic agent, powder and a thickening agent at a medium speed, stirring for 20-30 minutes, detecting that the fineness is less than or equal to 40 micrometers, the pH value is 7.5-9, spraying other poor paint film effects without shrinkage cavities, and taking out a finished product after the detection is qualified.
Example 2
A water-based yellow-sealing coating and a preparation method thereof are disclosed, which comprises the following components:
preparing raw materials, adding aqueous yellow-sealing self-crosslinking acrylic acid and aqueous solvent-free yellow-sealing self-crosslinking acrylic acid in a conventional high-speed dispersion machine at 25 ℃, adding a mixed solution of a film-forming aid and water, a defoaming agent, a wetting agent, a leveling agent, a hydrophobic agent, powder and a thickening agent at a medium speed, stirring for 20-30 minutes, detecting that the fineness is less than or equal to 40 micrometers, the pH value is 7.5-9, spraying other poor paint film effects without shrinkage cavities, and taking out a finished product after the detection is qualified.
Example 3
A water-based yellow-sealing coating and a preparation method thereof are disclosed, which comprises the following components:
preparing raw materials, adding aqueous yellow-sealing self-crosslinking acrylic acid and aqueous solvent-free yellow-sealing self-crosslinking acrylic acid in a conventional high-speed dispersion machine at 25 ℃, adding a mixed solution of a film-forming aid and water, a defoaming agent, a wetting agent, a leveling agent, a hydrophobic agent, powder and a thickening agent at a medium speed, stirring for 20-30 minutes, detecting that the fineness is less than or equal to 40 micrometers, the pH value is 7.5-9, spraying other poor paint film effects without shrinkage cavities, and taking out a finished product after the detection is qualified.
Example 4
A water-based yellow-sealing coating and a preparation method thereof are disclosed, which comprises the following components:
preparing raw materials, adding aqueous yellow-sealing self-crosslinking acrylic acid and aqueous solvent-free yellow-sealing self-crosslinking acrylic acid in a conventional high-speed dispersion machine at 25 ℃, adding a mixed solution of a film-forming aid and water, a defoaming agent, a wetting agent, a leveling agent, a hydrophobic agent, powder and a thickening agent at a medium speed, stirring for 20-30 minutes, detecting that the fineness is less than or equal to 40 micrometers, the pH value is 7.5-9, spraying other poor paint film effects without shrinkage cavities, and taking out a finished product after the detection is qualified.
Example 5
A water-based yellow-sealing coating and a preparation method thereof are disclosed, which comprises the following components:
preparing raw materials, adding aqueous yellow-sealing self-crosslinking acrylic acid and aqueous solvent-free yellow-sealing self-crosslinking acrylic acid in a conventional high-speed dispersion machine at 25 ℃, adding a mixed solution of a film-forming aid and water, a defoaming agent, a wetting agent, a leveling agent, a hydrophobic agent, powder and a thickening agent at a medium speed, stirring for 20-30 minutes, detecting that the fineness is less than or equal to 40 micrometers, the pH value is 7.5-9, spraying other poor paint film effects without shrinkage cavities, and taking out a finished product after the detection is qualified.
Example 6
A water-based yellow-sealing coating and a preparation method thereof are disclosed, which comprises the following components:
preparing raw materials, adding aqueous yellow-sealing self-crosslinking acrylic acid and aqueous solvent-free yellow-sealing self-crosslinking acrylic acid in a conventional high-speed dispersion machine at 25 ℃, adding a mixed solution of a film-forming aid and water, a defoaming agent, a wetting agent, a leveling agent, a hydrophobic agent, powder and a thickening agent at a medium speed, stirring for 20-30 minutes, detecting that the fineness is less than or equal to 40 micrometers, the pH value is 7.5-9, spraying other poor paint film effects without shrinkage cavities, and taking out a finished product after the detection is qualified.
The above examples, when compared to conventional wood coating products and examined, gave the results of the following table, the experimental board selected was a medium density fiberboard:
the test items in the tables are basically detected according to the national standard GB/T23999-. VOC volatilization was measured as described in GB 18582-2001.
The cold-hot circulation experiment result and the detection experiment method obtain: the coating is sprayed on the upper surface of a medium density fiberboard according to the specified mixture ratio and the coating weight of 110 g/square meter multiplied by 3 times, and the medium density fiberboard is dried at room temperature for 48 hours and then placed into a cold-hot circulation machine for testing, wherein the cold-hot circulation setting mode is as follows: freezing at-20 deg.C for 2 hr; raising the temperature to 25 ℃ and placing for 2 hours; raising the temperature to 50 ℃ and baking for 2 hours; these three steps are completed as one cycle. The 6 cycles are repeated, and the paint film is checked for cracks or other abnormal phenomena, and the conclusion is that the embodiment of the invention does not crack or generate other abnormal phenomena.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (10)
1. The water-based yellow-sealing coating is characterized by comprising the following components in parts by weight: the paint comprises water-based yellow-sealing self-crosslinking acrylic acid, water-based yellow-sealing solvent-free self-crosslinking acrylic acid, a film-forming cosolvent, water, a defoaming agent, a flatting agent, a wetting agent, powder and a thickening agent, wherein the components in percentage by mass are as follows:
20-22.5% of water-based yellow-sealing self-crosslinking acrylic acid;
20-22.5% of water-based yellow-sealing solvent-free self-crosslinking acrylic acid;
2.0 to 2.5 percent of film-forming cosolvent;
7-8% of water;
0.3 to 0.8 percent of defoaming agent;
0.2 to 1.5 percent of wetting agent;
0.2 to 1.5 percent of flatting agent;
40-42.5% of powder;
0.3 to 1.5 percent of thickening agent.
2. The aqueous yellow-blocking paint according to claim 1, characterized in that: the type of the water-based yellow-sealing self-crosslinking acrylic acid is WA-631.
3. The aqueous yellow-blocking paint according to claim 1, characterized in that: the type of the water-based solvent-free yellow-sealing self-crosslinking acrylic acid is PA-4850.
4. The aqueous yellow-blocking paint according to claim 1, characterized in that: the film-forming cosolvent is one or a combination of dipropylene glycol methyl ether, dipropylene glycol butyl ether, propylene glycol butyl ether and tripropylene glycol butyl ether.
5. The aqueous yellow-blocking paint according to claim 1, characterized in that: the water is purified water or deionized water.
6. The aqueous yellow-blocking paint according to claim 1, characterized in that: the defoaming agent is polydimethylsiloxane which is one or a combination of BYK024, BYK028, TEGO825 and TEGO 902W.
7. The aqueous yellow-blocking paint according to claim 1, characterized in that: the wetting agent is polyether modified siloxane or multifunctional modified siloxane, and the type of the wetting agent is one or a combination of TEGO270, BYK346 and TEGO 4100.
8. The aqueous yellow-blocking paint according to claim 1, characterized in that: the leveling agent is polyether siloxane copolymer, and the number of the polyether siloxane copolymer is one or two of TEGO410 and BYK 333.
9. The aqueous yellow-blocking paint according to claim 1, characterized in that: the powder material is an inorganic substance and is one or more of CC902 calcium carbonate and R895 titanium dioxide; the thickener is an associated polyurethane thickener, and the model number of the thickener is Coapurxs 71.
10. A method of preparing the aqueous yellow-blocking paint according to any one of claims 1 to 9, characterized in that: comprises the following steps
(1) Preparing raw materials, which comprise the following components in percentage by weight:
20-22.5% of water-based yellow-sealing self-crosslinking acrylic acid, 20-22.5% of water-based solvent-free yellow-sealing self-crosslinking acrylic acid, 2-2.5% of film-forming cosolvent, 7-8% of water, 0.3-0.8% of defoaming agent, 0.2-1.5% of flatting agent, 0.2-1.5% of wetting agent, 40-42.5% of powder and 0.3-1.5% of thickening agent;
(2) under the condition of normal temperature, adding aqueous yellow-sealed self-crosslinking acrylic acid and aqueous solvent-free yellow-sealed self-crosslinking acrylic acid in percentage into a high-speed dispersion machine, adding a mixed solution of a film-forming cosolvent and water, a defoaming agent, a wetting agent, a leveling agent, powder and a thickening agent at a medium speed, and stirring for 20-30 minutes;
(3) the detection fineness is less than or equal to 40 micrometers;
(4) detecting the pH value to be 7.5-9;
(5) spraying other bad paint film effects without shrinkage cavity;
(6) and taking out the finished product after the detection is qualified.
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| CN202111580748.XA CN114085576A (en) | 2021-12-22 | 2021-12-22 | Water-based yellow-sealing coating and preparation method thereof |
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| CN202111580748.XA CN114085576A (en) | 2021-12-22 | 2021-12-22 | Water-based yellow-sealing coating and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974277A (en) * | 2010-10-29 | 2011-02-16 | 浙江菲达中科精细化学品有限公司 | White waterborne wood base coat for medium density fiberboard and preparation technology thereof |
| CN104098961A (en) * | 2013-04-12 | 2014-10-15 | 四川远见实业有限公司 | Self-crosslinking aqueous woodenware primer |
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Application publication date: 20220225 |