CN116463015A - Water-based single-component high-hardness roller white primer - Google Patents
Water-based single-component high-hardness roller white primer Download PDFInfo
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- CN116463015A CN116463015A CN202310392956.XA CN202310392956A CN116463015A CN 116463015 A CN116463015 A CN 116463015A CN 202310392956 A CN202310392956 A CN 202310392956A CN 116463015 A CN116463015 A CN 116463015A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000000839 emulsion Substances 0.000 claims abstract description 20
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229920002635 polyurethane Polymers 0.000 claims abstract description 13
- 239000004814 polyurethane Substances 0.000 claims abstract description 13
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 8
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 8
- 239000002270 dispersing agent Substances 0.000 claims abstract description 8
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 8
- 239000002562 thickening agent Substances 0.000 claims abstract description 8
- 238000009736 wetting Methods 0.000 claims abstract description 8
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 6
- 239000013530 defoamer Substances 0.000 claims abstract description 6
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000008367 deionised water Substances 0.000 claims abstract description 4
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract 2
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- 229920000570 polyether Polymers 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 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 4
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000049 pigment Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical group CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 229910021485 fumed silica Inorganic materials 0.000 claims description 2
- KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 claims description 2
- 229910000271 hectorite Inorganic materials 0.000 claims description 2
- 229910002011 hydrophilic fumed silica Inorganic materials 0.000 claims description 2
- 239000004094 surface-active agent Substances 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 1
- 239000003945 anionic surfactant Substances 0.000 claims 1
- 239000002736 nonionic surfactant Substances 0.000 claims 1
- 239000003973 paint Substances 0.000 abstract description 32
- 238000000576 coating method Methods 0.000 abstract description 22
- 238000007761 roller coating Methods 0.000 abstract description 15
- 239000003921 oil Substances 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 description 16
- 238000010276 construction Methods 0.000 description 9
- 239000002023 wood Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002518 antifoaming agent Substances 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- -1 polysiloxane Polymers 0.000 description 2
- 229920003009 polyurethane dispersion Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910002016 Aerosil® 200 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000003636 chemical group Chemical group 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000006115 industrial coating Substances 0.000 description 1
- DMKSVUSAATWOCU-HROMYWEYSA-N loteprednol etabonate Chemical compound C1CC2=CC(=O)C=C[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@@](C(=O)OCCl)(OC(=O)OCC)[C@@]1(C)C[C@@H]2O DMKSVUSAATWOCU-HROMYWEYSA-N 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
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
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
- C09D5/002—Priming 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
- 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
-
- 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
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- 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
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the technical field of coatings, and relates to a water-based single-component high-hardness roller coating white primer, which comprises the following raw materials in parts by weight: 15-25 parts of aqueous acrylic emulsion, 15-25 parts of aqueous polyurethane emulsion, 3-4 parts of film-forming assisting solvent, 0.1-0.2 part of PH regulator, 15-20 parts of titanium dioxide, 8-15 parts of heavy calcium carbonate, 10-20 parts of talcum powder, 5-10 parts of kaolin, 1-2 parts of anti-settling agent, 0.5-1 part of defoamer, 1.5-2 parts of dispersing agent, 0.5-1 part of wetting leveling agent, 0.8-1.2 parts of thickener and 5-7 parts of deionized water. According to the invention, the aqueous acrylic emulsion and the aqueous polyurethane emulsion are adopted as main film forming matters, so that the oil quantity on a single roller of a roller coating is improved, the leveling of a paint film on a roller coating plate is better, the fineness is higher, and the mechanical property of the paint film is enhanced, so that the high hardness and the high fullness of the paint film can be realized.
Description
Technical Field
The invention belongs to the technical field of coatings, and relates to a water-based single-component high-hardness roller coating white primer.
Background
The advent of the low carbon economic age, environmental and energy is two major challenges facing us in the 21 st century, and to cope with this challenge, the coating industry is gradually moving from traditional varieties highly dependent on petrochemical industry products, such as water-borne coatings, radiation-curable coatings, powder coatings and high solids coatings, to environmentally friendly, resource-efficient products. The water-based wood coating is one of the main varieties of industrial coatings, and is used for decoration and protection of wood products. Compared with the traditional solvent-based paint, 50-60% of the water-based wood paint is water, the water-based wood paint can be diluted by clear water on a construction site to carry out coating work, the operation is more convenient, and the water-based wood paint is low in VOC, low in toxicity, nonflammable, free of organic solvents such as formaldehyde and benzene, and lighter in smell. In the aspect of performance, the yellowing resistance and decoration performance of the water-based wood coating are outstanding, but the fullness is slightly poorer than that of the solvent-based coating, the fullness firstly affects the hand feeling and the aesthetic problem of a wood product, and the problem of how to solve the fullness of the water-based paint in the large environment of oil-to-water change becomes a focus of attention.
The water-based wood coating is divided into a single-component coating, a double-component coating, a water-based UV coating and the like, the double-component coating is complicated in construction and paint adjustment, the prepared coating has short usable time and poor construction operability; the water-based UV coating has excellent performances in all aspects, high production efficiency, high equipment investment and high production cost, and is not suitable for a roller coating process; the water-based single-component construction is convenient, the operation is simple, and the method is more suitable for a roller coating process. The difference between the water-based roller coating paint and the common water-based paint is that: the main construction mode of the common water-based paint is spraying, the paint is sprayed into fine fog drops by high air pressure and is sent to the working surface, so that a continuous and uniform paint film is obtained, the fullness of the paint film is mainly controlled by the spraying amount, the common water-based paint almost has no upper limit only from the view of the thickness of the paint film, and the high hardness can be obtained by adjusting the construction mode; the water-based roller coating paint is characterized in that the paint is transferred to the surface of a coated workpiece by means of the rolling of a roller with the paint absorbed on the surface, the oil quantity of a single roller is highest, and the oil quantity of each roller is decreased when the roller is added, so that a paint film with high hardness cannot be obtained by the roller coating paint through adjusting a construction mode.
Disclosure of Invention
The invention aims to provide a water-based single-component high-hardness roller white primer, which aims to solve the problems of insufficient oil quantity on a roller, poor coverage, easy underexposure, green penetration and the like of the water-based roller white primer in the prior art.
The invention realizes the aim through the following technical scheme:
the water-based single-component high-hardness roller coating white primer comprises the following components in parts by weight:
15-25 parts of aqueous acrylic emulsion, 15-25 parts of aqueous polyurethane emulsion, 3-4 parts of film-forming assisting solvent, 0.1-0.2 part of PH regulator, 15-20 parts of titanium dioxide, 8-15 parts of heavy calcium carbonate, 10-20 parts of talcum powder, 5-10 parts of kaolin, 1-2 parts of anti-settling agent, 0.5-1 part of defoamer, 1.5-2 parts of dispersing agent, 0.5-1 part of wetting leveling agent, 0.8-1.2 parts of thickener and 5-7 parts of deionized water.
Further, the aqueous acrylic emulsion is an acrylic polymer emulsion; for example: the kesi brand name is NeoCryl XK-52 acrylic polymer emulsion.
Furthermore, the aqueous polyurethane emulsion is an aqueous polyurethane dispersion, has good flexibility and leveling property, and can greatly improve the fineness and the hand feeling of the system; for example: the brand of Wanhua chemical group is4210 aqueous polyurethane dispersion.
Further, the film forming assisting solvent is one or more of dipropylene glycol methyl ether, dipropylene glycol butyl ether and propylene glycol; preferably dipropylene glycol butyl ether and dipropylene glycol methyl ether, wherein the mass ratio of the dipropylene glycol butyl ether to the dipropylene glycol methyl ether is 1:1, the film forming effect of the main film forming material is mainly assisted, and meanwhile, the drying speed of the system can be adjusted, and the wettability of a paint film is improved.
Furthermore, the PH regulator is the Dow chemical AMP-95, has the main function of regulating the PH value, can reduce the dosage of dispersing agent and wetting agent, stabilizes the dispersibility of powder and pigment, and is beneficial to improving the overall quality of the coating.
Furthermore, the titanium dioxide is rutile type titanium dioxide pigment produced by a chlorination method, so that the covering capacity and the decoration of a system are improved, more importantly, the physical and chemical properties of a coating film can be improved, the chemical stability, the decoloring capacity, the corrosion resistance, the light resistance and the weather resistance are enhanced, the mechanical strength and the adhesive force of the coating film are enhanced, cracking and falling are prevented, ultraviolet rays and moisture are prevented from penetrating, and the service life of a product is prolonged.
Furthermore, the heavy calcium carbonate is 1000 meshes of heavy calcium carbonate, so that the solid content and filling capacity of the system are improved, and a paint film has better tension resistance, crack resistance and thermal stability.
Furthermore, the talcum powder is 1250-mesh hydrous magnesium silicate, so that the solid content and filling capacity of the system are improved, and the shear strength, flexural strength and pressure strength of a paint film are improved.
Further, the kaolin is dehydroxylated modified calcined kaolin.
Further, the anti-settling agent is hydrophilic fumed silica; for example: AEROSIL 200 of desiprame.
Further, the defoaming agent is one or more of modified mineral oil, silicone and modified polysiloxane, and preferably, the defoaming agent is a polyether siloxane copolymer containing fumed silica; for example: di-high TEGO Airex 902W defoamer.
Further, the dispersing agent is one or more of copolymer aqueous solution containing high pigment affinity groups, controlled radical acrylic ester and special high molecular polymer; for example: the di-high TEGO Dispers752W dispersing agent is beneficial to the dispersion of the powder, resin and other production processes, and can help wetting and improve the system stability.
Further, the thickener is one or more of associated polyether polyurethane thickener, bentonite water solution and hectorite clay water solution.
Further, the wetting and leveling agent is an organosilicon gemini structure surfactant; for example: the di-high TEGO Twain 4100 can greatly reduce the surface tension of the water-based paint, and improve the wetting capacity and leveling spreading capacity of the system.
Furthermore, the aqueous single-component high-hardness roller-coating white primer has the viscosity of 80KU/25 ℃, and can be directly used without dilution when being subjected to roller-coating construction.
The invention has the beneficial effects that: the invention adopts acrylic emulsion and polyurethane dispersoid as main film forming matters. The aqueous acrylic emulsion has high glass temperature, higher hardness, higher addition amount of film forming auxiliary agent, higher single use risk and possible anti-adhesion problem, and the addition amount of the film forming auxiliary agent is higher, thus being not environment-friendly. The aqueous polyurethane emulsion has low glass temperature, low hardness and small addition amount of film forming auxiliary agent, is not easy to prepare when being singly used, and can cause problems of skinning, dryness, hardness and the like of the paint reflowing during roller coating. According to the invention, a compounding mode is selected, the acrylic emulsion is used for matching with polyurethane dispersoid, and meanwhile, the associative polyether polyurethane is used for matching, so that the viscosity of the water-based roller white primer under high shearing force is enhanced, more paint can be adsorbed on the surface of the roller, the oil quantity on the coated surface can be increased by more than 20% compared with a conventional product, the fullness of a paint film is greatly improved, and the defects of oily hand feeling, no undercut, sagging and the like are overcome.
Detailed Description
The invention is further described in connection with the following embodiments, but the invention is not limited thereto. The methods, such as those commonly used in the art, referred to herein are not specifically described and the reagents, such as those specifically described, are commercially available.
The invention relates to a water-based single-component high-hardness roller white primer which comprises the following components in parts by weight:
15-25 parts of aqueous acrylic emulsion, 15-25 parts of aqueous polyurethane emulsion, 3-4 parts of film-forming assisting solvent, 0.1-0.2 part of PH regulator, 15-20 parts of titanium dioxide, 8-15 parts of heavy calcium carbonate, 10-20 parts of talcum powder, 5-10 parts of kaolin, 1-2 parts of anti-settling agent, 0.5-1 part of defoamer, 1.5-2 parts of dispersing agent, 0.5-1 part of wetting leveling agent, 0.8-1.2 parts of thickener and 5-7 parts of deionized water.
The formulation of the components of examples 1-3 and comparative examples 1-3 of the above aqueous one-component roll-on primer are shown in Table 1, and the preparation method is conventional mixing and stirring.
Table 1: component formulations of examples 1 to 3 and comparative examples 1 to 3
The above examples 1 to 3 and comparative examples 1 to 3 were sequentially applied to medium density fiberboard according to the 6 steps described in table 2.
Table 2: construction process of examples 1 to 3 and comparative examples 1 to 3
The properties of the above examples 1 to 3 and comparative examples 1 to 3 after roll coating were tested according to a test method commonly used in the art, and the test results are shown in table 3.
Table 3: results of Performance test of examples 1 to 3 and comparative examples 1 to 3
As can be seen from Table 3, examples 1 to 3 can meet the requirements of national standards on basic performances, and the aqueous acrylic emulsion is adopted together with the aqueous polyurethane emulsion as a main film forming material so as to improve the oil quantity on a single roller of a roller coating, so that the paint film on a roller coating plate has better leveling and higher fineness, and the mechanical property of the paint film is enhanced, thereby realizing high hardness and high fullness of the paint film.
It will be understood that the above embodiments are further illustrative of the present invention and are not intended to limit the scope of the invention, and that all other modifications and variations which may be obtained without the inventive effort by those skilled in the art are within the scope of the invention.
Claims (10)
1. The water-based single-component Gao Fengman roller white primer is characterized by comprising the following raw materials in parts by weight:
15-25 parts of aqueous acrylic emulsion, 15-25 parts of aqueous polyurethane emulsion, 3-4 parts of film-forming assisting solvent, 0.1-0.2 part of PH regulator, 15-20 parts of titanium dioxide, 8-15 parts of heavy calcium carbonate, 10-20 parts of talcum powder, 5-10 parts of kaolin, 1-2 parts of anti-settling agent, 0.5-1 part of defoamer, 1.5-2 parts of dispersing agent, 0.5-1 part of wetting leveling agent, 0.8-1.2 parts of thickener and 5-7 parts of deionized water.
2. The aqueous one-component Gao Fengman roll-on white primer of claim 1, wherein the film-forming aiding solvent is one or more of dipropylene glycol methyl ether, dipropylene glycol butyl ether, propylene glycol.
3. The aqueous one-component Gao Fengman roll-on white primer of claim 1, wherein the PH adjuster is an aminomethylpropanol neutralizer.
4. The aqueous one-component Gao Fengman roll-on primer of claim 1, wherein said titanium dioxide is a rutile titanium dioxide pigment.
5. The aqueous one-component Gao Fengman roll-on white primer of claim 1, wherein the kaolin is a dehydroxylated modified calcined kaolin.
6. The aqueous one-component Gao Fengman roller white primer of claim 1, wherein the anti-settling agent is one or more of hydrophilic fumed silica, dispersed hectorite clay, layered silicate.
7. The aqueous one-component Gao Fengman roll-on white primer of claim 1, wherein the defoamer is a fumed silica-containing polyether siloxane copolymer.
8. The aqueous one-component Gao Fengman roller white primer of claim 1, wherein the dispersant is tego dispers752W.
9. The aqueous one-component Gao Fengman roll-on white primer of claim 1, wherein the wetting and leveling agent is one or more of a silicone gemini surfactant, a silicone polyether copolymer, a silicone anionic surfactant, a silicone nonionic surfactant.
10. The aqueous one-component Gao Fengman roller white primer of claim 1, wherein the thickener is an associative polyether polyurethane thickener.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117050603A (en) * | 2023-08-21 | 2023-11-14 | 上海展辰涂料有限公司 | Aqueous single-component high-adhesion white primer |
| CN119350936A (en) * | 2024-12-26 | 2025-01-24 | 陕西嘉源建装科技有限公司 | Environmentally friendly coating composition for building interiors |
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