CN114921171A - Oily primer for matching with water-based finish paint and preparation method thereof - Google Patents
Oily primer for matching with water-based finish paint and preparation method thereof Download PDFInfo
- Publication number
- CN114921171A CN114921171A CN202210654447.5A CN202210654447A CN114921171A CN 114921171 A CN114921171 A CN 114921171A CN 202210654447 A CN202210654447 A CN 202210654447A CN 114921171 A CN114921171 A CN 114921171A
- Authority
- CN
- China
- Prior art keywords
- water
- primer
- oil
- finish paint
- matching
- Prior art date
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 239000003973 paint Substances 0.000 title claims abstract description 81
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 41
- 239000003921 oil Substances 0.000 claims abstract description 28
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 239000011347 resin Substances 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 22
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000052 vinegar Substances 0.000 claims abstract description 19
- 239000003960 organic solvent Substances 0.000 claims abstract description 18
- 235000021419 vinegar Nutrition 0.000 claims abstract description 18
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 claims abstract description 15
- 239000004359 castor oil Substances 0.000 claims abstract description 15
- 235000019438 castor oil Nutrition 0.000 claims abstract description 15
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 15
- 239000003085 diluting agent Substances 0.000 claims abstract description 12
- 229920000180 alkyd Polymers 0.000 claims abstract description 11
- 239000005639 Lauric acid Substances 0.000 claims abstract description 10
- 239000000945 filler Substances 0.000 claims abstract description 10
- 229910002011 hydrophilic fumed silica Inorganic materials 0.000 claims abstract description 8
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical class ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 claims abstract description 6
- 125000001309 chloro group Chemical class Cl* 0.000 claims abstract 5
- 238000000034 method Methods 0.000 claims description 13
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000002518 antifoaming agent Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 8
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical group 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 description 8
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 4
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 2
- 239000013538 functional additive Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 238000000576 coating method Methods 0.000 abstract description 25
- 238000001035 drying Methods 0.000 abstract description 22
- 239000011248 coating agent Substances 0.000 description 23
- 230000000052 comparative effect Effects 0.000 description 17
- 238000005507 spraying Methods 0.000 description 15
- 238000012360 testing method Methods 0.000 description 14
- 238000005498 polishing Methods 0.000 description 12
- 150000001804 chlorine Chemical class 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000012752 auxiliary agent Substances 0.000 description 6
- 230000002087 whitening effect Effects 0.000 description 6
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 5
- 229910021485 fumed silica Inorganic materials 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000004814 polyurethane Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 206010027627 Miliaria Diseases 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000013530 defoamer Substances 0.000 description 4
- 239000002612 dispersion medium Substances 0.000 description 4
- 201000004169 miliaria rubra Diseases 0.000 description 4
- 239000000123 paper Substances 0.000 description 4
- 230000037452 priming Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000002791 soaking Methods 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 241001448624 Miliaria Species 0.000 description 3
- 230000004913 activation Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 230000032798 delamination Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 239000006254 rheological additive Substances 0.000 description 3
- 244000184861 Juglans nigra Species 0.000 description 2
- 235000013740 Juglans nigra Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011094 fiberboard Substances 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 238000005464 sample preparation method Methods 0.000 description 2
- 238000013112 stability test Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- YXRKNIZYMIXSAD-UHFFFAOYSA-N 1,6-diisocyanatohexane Chemical compound O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O YXRKNIZYMIXSAD-UHFFFAOYSA-N 0.000 description 1
- 241000251468 Actinopterygii Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- LZBCVRCTAYKYHR-UHFFFAOYSA-N acetic acid;chloroethene Chemical class ClC=C.CC(O)=O LZBCVRCTAYKYHR-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- NCEXYHBECQHGNR-UHFFFAOYSA-N chembl421 Chemical compound C1=C(O)C(C(=O)O)=CC(N=NC=2C=CC(=CC=2)S(=O)(=O)NC=2N=CC=CC=2)=C1 NCEXYHBECQHGNR-UHFFFAOYSA-N 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000010130 dispersion processing Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000006221 furniture coating Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003578 releasing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000009736 wetting Methods 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
-
- 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
- C09D7/60—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
- C09D7/65—Additives macromolecular
-
- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
Abstract
The application relates to the field of coatings, and particularly discloses an oil primer for matching with a water-based finish and a preparation method thereof. An oily primer for matching water-based finish paint comprises a main agent, a curing agent and a diluent; the main agent comprises the following raw materials in percentage by weight: 40-45% of lauric acid alkyd resin, 25-30% of modified castor oil resin, 15-25% of filler, 0.5-1.0% of hydrophilic fumed silica, 3-5% of modified chlorine vinegar, 0.1-0.3% of functional assistant and 4-16% of organic solvent; the modified vinyl chloride-vinyl acetate copolymer solution consists of vinyl chloride-vinyl acetate copolymer resin and an organic solvent in a weight ratio of 1: 4. The oil-based primer has good adhesion to the water-based finish paint, and a paint film formed by the oil-based primer has the advantages of short drying time, quick odor volatilization, good water resistance, good stability and high transparency, and has good adaptability to the water-based finish paint.
Description
Technical Field
The application relates to the technical field of coatings, in particular to an oily primer for matching with a water-based finish and a preparation method thereof.
Background
The coating generally comprises four basic components: film forming substances (resin and emulsion), pigments, dispersion media and auxiliaries. The paint can be divided into a primer and a finish according to the function of the paint. The primer is a coating directly coated on the surface of an object, and mainly plays roles in sealing a base layer, improving the flatness of a base material, increasing the richness of finish paint and the like; the finishing coat is coated on the priming paint, and mainly plays a role in decoration and protection.
Depending on the dispersion medium, the coating material can be classified into a water-based coating material using water as the dispersion medium and an oil-based coating material using an organic solvent as the dispersion medium. Along with the increasing of environmental protection pressure in recent years, the furniture coating advocates green environmental protection, energy conservation and emission reduction, so that the application of the water-based coating in furniture is more and more extensive. When adopting water-based finish paint, in order to guarantee the cohesion between priming paint layer and the finish paint layer, can cooperate the water-based priming paint of using usually, but the water-based priming paint receives the restriction that aqueous emulsion solid content is lower to a little, disposable film fullness of spraying paint is not enough, play and support the effect of filling, and thick scribbling can produce the defect of blushing and having prickly heat, want to reach support and better fullness effect, need through spraying many times, but spraying many times is not only can take the time hard, lead to the cost to increase, and thick scribbling also easily causes the face to blush, play prickly heat. Thus, the use of water-based primers in existing furniture where efficient and economical environments are sought is limited.
The traditional oily primer can meet the requirements of fullness and filling degree, but the oily primer and the water-based finish paint are difficult to be matched for use due to poor compatibility and low interface binding force. Under the large environment, the market demand of the oil-based primer which can be matched with the water-based finish paint is increasing.
Disclosure of Invention
In order to improve the binding force of the oily primer and the water-based finish paint, the application provides the oily primer for matching the water-based finish paint and the preparation method thereof.
In a first aspect, the application provides an oil-based primer for matching water-based finish paint, which adopts the following technical scheme: an oily primer for matching water-based finish paint comprises a main agent, a curing agent and a diluent;
the main agent comprises the following raw materials in percentage by weight: 40-45% of lauric acid alkyd resin, 25-30% of modified castor oil resin, 15-25% of filler, 0.5-1.0% of hydrophilic fumed silica, 3-5% of modified chlorine vinegar, 0.1-0.3% of functional assistant and 4-16% of organic solvent;
the modified vinyl chloride-vinyl acetate copolymer solution consists of vinyl chloride-vinyl acetate copolymer resin and an organic solvent in a weight ratio of 1: 4.
Most of the existing water-based primers matched with water-based finish paint are water-based primers, and although the adhesion of the finish paint layer on the primer layer can be ensured, the water-based primers have the problem of insufficient self fullness, and the water-based primers need to be sprayed for many times, which can cause the increase of cost. However, the current oily primer matched with water-based finish paint has less application in furniture factories, and through the research of the inventor, the following reasons mainly exist:
1. the adhesion force of the water-based finish paint on the oil-based primer before improvement is poor, the board surface is easily whitened after cold and hot circulation, the transparency and the brightness of the board surface are affected, cracking and delamination are easily caused, and the protection effect cannot be achieved.
2. The water-based product has higher requirement on odor, but the solvent of the oil-based primer before improvement can remain in a paint film within the drying time of normal construction, and the odor of the solvent can be released within a longer time after the water-based finish paint is sprayed and dried, so that the odor purification effect cannot be achieved.
3. The water resistance of a coating formed by the oil-based primer and the water-based finish paint before improvement is poor, the water resistance requirement is an important performance index of the water-based paint, particularly when the water-based paint is applied to products such as bathrooms and the like, the water resistance requirement is very strict, the water soaking test is usually required for 3 days, and the coating cannot meet the requirements of the water soaking test easily.
Through adopting above-mentioned technical scheme, this application is through adopting that activation period is long, net flavor, the wetting is good, anti-blushing's lauric acid alkyd and both the collocation use of the modified castor oil resin that the aridity is good, extremely low smell, solvent release nature are strong for the existing better drying rate of paint film, be difficult for having prickly heat, and the cross-linking density of coating is higher, has better solvent release speed, can reduce the residue of smell.
After the functional auxiliary agent, the ternary chloride vinegar, the hydrophilic silicon dioxide and the filler are matched, the oily primer is formed by taking the lauric acid alkyd resin and the modified castor oil resin as base materials, and the polishing auxiliary agents of zinc stearate, an organic silicon flatting agent and a dispersing agent which influence the adhesive force in the traditional primer are removed, so that the obtained oily primer has good adhesive force to the water-based finish paint, and the formed paint film has the advantages of short drying time, quick odor volatilization, good water resistance, good stability and high transparency, and has good adaptability to the water-based finish paint.
Preferably, the main agent comprises the following raw materials in percentage by weight: 40% of lauric acid alkyd resin, 28% of modified castor oil resin, 21% of filler, 0.5% of hydrophilic fumed silica, 3% of modified chlorine vinegar, 0.15% of functional assistant and 7.35% of organic solvent.
Preferably, the main agent comprises the following raw materials in percentage by weight: the curing agent comprises the following raw materials in percentage by weight: 1-3% of HDI tripolymer, 45-55% of TDI additive, 20-25% of TDI additive and 20-30% of butyl acetate.
Preferably, the diluent comprises the following raw materials in percentage by weight: 30-40% of propylene glycol methyl ether acetate, 20-30% of butyl acetate, 15-25% of ethyl acetate and 15-25% of dimethyl carbonate.
Preferably, the weight ratio of the main agent, the curing agent and the diluent is 1:0.5: 0.5-0.8.
Preferably, the viscosity of the modified castor oil resin is 4500-10000mPa & s, and the hydroxyl value is 80 +/-5 mgKOH/g.
By adopting the technical scheme, the modified castor oil resin with the viscosity of 4500-10000mPa & s (25 ℃) and the hydroxyl value of 80 +/-5 mgKOH/g is selected, and has the characteristics of high drying speed and high hardness, so that the prepared primer has good appearance performance.
Preferably, the filler is talcum powder, and the fineness of the talcum powder is 1000-1500 meshes.
In order to improve the bonding force between the primer layer and the finish layer, the primer layer is usually polished before the finish paint is sprayed. Zinc stearate is mostly used as a polishing auxiliary agent in a traditional primer, but the zinc stearate polishing auxiliary agent is easy to float to the surface of a coating film to influence the adhesion and water resistance of a later-stage water-based surface, so that by adopting the technical scheme, the zinc stearate polishing auxiliary agent is removed from the main agent of the primer, but the modified castor oil resin with good drying property is selected to improve the drying property and the polishing property, and through the matching of the talcum powder with better transparency, the polishing property of a paint film is improved while the adhesion and the water resistance of the later-stage water-based finish paint are not influenced.
Preferably, the functional assistant comprises a defoaming agent, and the defoaming agent is a non-silicon defoaming agent.
By adopting the technical scheme, the defoaming agent has excellent inhibiting and bubble releasing effects and good compatibility with a system, so that the problems of miliaria, fish eyes, pinholes and the like in later-stage coating are avoided. The defoaming agent of the application is selected from non-silicon defoaming agents, such as AC-300 defoaming agents, the non-silicon defoaming agents enable the product to have a quick defoaming effect, and the non-silicon defoaming agents do not influence the adhesive force of the water-based finish paint.
Preferably, the functional agent comprises a rheological agent.
By adopting the technical scheme, the rheological additive can be BYK-405, BYK-405 is polyhydroxy carboxylic acid amide, and can further form a high-density net structure with the water-based paint-free paint. Furthermore, BYK-405 simultaneously reduces and prevents the precipitation of fumed silica in the oily primer, increases and stabilizes the thixotropy thereof, and improves the gloss, transparency, and moisture resistance of the fumed silica-containing coating.
In a second aspect, the application provides a preparation method of an oil primer for matching water-based finish paint, which adopts the following technical scheme:
uniformly mixing the main agent, the curing agent and the diluent according to a ratio to obtain the oily primer;
the preparation method of the main agent comprises the following steps: stirring lauric acid alkyd resin and modified castor oil resin, adding functional auxiliary agent at 400-600rpm, and dispersing for 3-10min at 800-1200 rpm; then reducing the rotation speed to 300-1500 rpm, adding hydrophilic fumed silica and talcum powder, and dispersing for 10-20min at 1200-1500 rpm; adjusting the rotation speed to be 500-800rpm, adding the modified chlorine vinegar liquid and the organic solvent, and dispersing for 5-8 min.
Preferably, the modified chlorine vinegar liquid is prepared by the following method: putting the organic solvent into a stirring container, and adding the vinyl chloride-vinyl acetate copolymer resin while stirring at the stirring speed of 400-600 rpm; after the addition, the solution is dispersed for 20-30min at the speed of 1200-1500rpm to obtain the modified chlorine vinegar solution.
By adopting the technical scheme, the dispersion uniformity of the vinyl chloride-vinyl acetate copolymer in the primer can be improved after the vinyl chloride-vinyl acetate copolymer is dissolved in advance by the organic solvent; the proportion of the vinyl chloride-vinyl acetate resin in the modified vinyl chloride-vinyl acetate copolymer is adjusted to 20 percent according to the solubility and the viscosity of the vinyl chloride-vinyl acetate copolymer, thereby not only ensuring the performance of the product, but also being beneficial to the dispersion processing of the product.
In summary, the present application has the following beneficial effects:
1. the oil primer has good adhesion to the water-based finish paint and is not easy to generate delamination phenomenon.
2. The construction smell is small, and no smell is left after drying.
3. After the water-based finish paint is sprayed on the oil primer film, the formed coating has good water resistance, and does not foam, delaminate or whiten after 72 hours (24 hours required by national standard) of test soaking water, and the adhesive force is not influenced.
4. After the water-based finish paint is sprayed on the oily primer film, the cracking and whitening phenomenon of the paint film is not easy to generate through cold and hot circulation.
5. After the oil finish paint is normally sprayed, the phenomena of frosting and miliaria are not easy to generate on the board surface, and the oil primer film can play a good role in supporting the water-based finish paint to achieve better fullness.
Detailed Description
The present application will be described in further detail with reference to examples.
Preparation example of modified Vinegar solution
The starting materials in the following preparation examples are commercially available unless otherwise specified.
Wherein the vinyl chloride-vinyl acetate copolymer is selected from VAGH modified vinyl chloride-vinyl acetate copolymer of Dow chemistry; the organic solvent in the preparation example is butyl acetate.
The preparation method of the chlorine vinegar liquid comprises the following steps:
putting the organic solvent into a stirring container, and adding the vinyl chloride-vinyl acetate copolymer while stirring at a stirring speed of 500 rpm; dispersing for 25min at 1400rpm after adding, and detecting the particle fineness to be less than or equal to 15 μm to obtain the modified chlorine vinegar.
Examples
The starting materials in the following examples are commercially available, unless otherwise specified.
Wherein, the lauric acid alkyd resin in the main agent is YTM3070 produced by Nippon long-hair-moistening; the modified castor oil resin is Sabistris SAPICI 2039 of Italy, the viscosity is 6000mPa & s (25 ℃), and the hydroxyl value is 80 mgKOH/g; selecting talcum powder with the fineness of 1250 meshes as the filler; selecting carbopol M-5 as the hydrophilic fumed silica; the modified chlorine vinegar liquid is prepared from a preparation example of the modified chlorine vinegar liquid; the functional additive consists of a rheological additive and a non-silicon defoamer, wherein the rheological additive is BYK-405; selecting a non-silicon defoamer as the AC-300 defoamer; the organic solvent consists of ethyl acetate and butyl acetate.
The curing agent is composed of the following raw materials in percentage by weight: 2% of HDI tripolymer, 50% of TDI addition product, 21% of TDI tripolymer and 27% of butyl acetate. Wherein HDI trimer is selected from Bayer N3390, TDI adduct is selected from Bayer L75, and TDI is selected from trimer Bayer IL 1351.
The diluent consists of the following raw materials in percentage by weight: 35% of propylene glycol methyl ether acetate (PMA), 25% of butyl acetate, 20% of ethyl acetate and 20% of dimethyl carbonate.
Examples 1 to 4
As shown in Table 1, examples 1 to 4 are different in the amount of the raw material used, and example 1 will be described below as an example.
The preparation method of the oil-based primer provided by the embodiment 1 comprises the following steps:
(1) preparation of the main agent: stirring alkyd resin and modified castor oil resin, adding a non-silicon defoamer and a rheological aid at 500rpm, and dispersing for 5min at 1000 rpm; then reducing the rotating speed to 500rpm, adding hydrophilic fumed silica and filler, and dispersing for 15min at 1200 rpm; adjusting the rotation speed to 600rpm, adding the modified chlorine vinegar liquid and the organic solvent, and dispersing for 6 min.
(2) Mixing materials: the main agent, the curing agent and the diluent are mixed according to the proportion of 1:0.5:0.6 to obtain the oily primer.
TABLE 1 raw material usage amount of auxiliary in the oily primer of examples 1 to 4 (unit: kg)
Comparative example
Comparative example 1
The primer of the comparative example is water-based primer, which is water-based double-component transparent primer JD-W121 produced by Nippon long-hair-growing self-production.
Comparative example 2
Comparative example 2 differs from example 1 in the formulation of the base, which is shown in table 2.
Comparative example 3
The comparative example is different from example 1 in that the raw material of the main agent further includes zinc stearate, and the amounts of the other raw materials are shown in table 2.
Comparative example 4
The comparative example is different from example 1 in that the modified vinyl chloride-acetic acid solution was not added to the raw materials of the main agent, and the amounts of the other raw materials are shown in Table 2.
Comparative example 5
This comparative example differs from example 1 in that the hydrophilic type fumed silica in the main agent is replaced with the hydrophobic type fumed silica.
TABLE 2 raw material usage amount of the oil based primer of example 1 and comparative examples 2 to 5 (unit: kg)
Performance test the primers were prepared as in the examples and comparative examples, and their performance was measured as follows, and the results are reported in table 3.
1. Viscosity: viscosity measurements were performed using a rock field (IWATA) NK-2 viscosity cup.
2. An activation period: mixing the main agent, the curing agent and the diluent according to a ratio to obtain the primer; the activation period of the primer was measured at a temperature and humidity of 25 ℃/56% RH.
3. Drying time: the surface drying time and the actual drying time of the primer are measured according to the method in GB/T1728-2020 & lt determination of drying time of paint film and putty film'.
4. Hardness: according to GB/T6739-2006 color paints and varnishes: the hardness of the primer paint film was measured by the pencil method. The pencil hardness is 9B, 8B, 7B, 6B, 5B, 4B, 3B, 2B, HB, F, H, 2H, 3H, 4H, 5H, 6H, 7H, 8H and 9H from soft to hard.
5. Sanding property: refer to HG/T3655-; taking a solid wood board as a base material, spraying odor-free PU (polyurethane) sealing paint SR-201 produced by Nippon Changhu self, wherein the paint mixing ratio is paint (SR-201): curing agent (SR-60) is 1:0.2, and the coating amount is controlled to be 50g/m 2 And after drying for 8 hours, polishing by using No. 240 abrasive paper to remove burrs for later use. Blowing off dust on the surface of the base plate, spraying primer on the base plate by adopting a cross method, wherein the coating amount is controlled to be 120g/m 2 And after spraying, putting the mixture into a drying room, drying the mixture for 24 hours at the temperature and humidity of 25 ℃/56% RH, polishing the mixture by using 400# abrasive paper, and observing the abrasiveness of the mixture.
6. Thick coating property: the coating weight per time was 120g/m 2 Drying and then coating twice; after the paint film is completely dried, observing whether the surface of the paint film is whitish and prickly heat; if there is no obvious change, it is marked as "√; when the change such as whitening, miliaria or transparency deterioration occurred, it was marked as "x".
7. Sag resistance: after the manufactured plate passes through cold and hot circulation for 5 times (aging resistance test), the plate surface effect is contrastingly observed.
Table 3 table for testing performance of primer of examples and comparative examples
By combining the example 1 and the comparative examples 2-5 with the table 2, the problem of sinking is solved, and the thick-coating miliaria-preventing performance and the excellent polishing performance are provided at the same time through the matching of the matrix resin, the powder and the modified chlorine vinegar.
Application example Performance test
The application of the oily primer is mainly used for coating solid wood furniture, cabinets, wooden doors and the like, and the main using method is as follows: spraying PU sealing primer on the black walnut solid wood board, polishing after drying to remove burrs, spraying PU transparent primer, drying for 24 hours, polishing, spraying aqueous two-component finish paint, and drying. In order to verify the matching effect between the oily primer and the water-based finish paint, a sample is prepared according to the following specific operation method, the performance of the sample is tested, and the test result is recorded in table 4.
The sample preparation method comprises the following steps:
1. manufacturing a bottom plate: three black walnut solid wood boards are taken and sprayed with the odor-free PU sealing paint SR-201 produced by Nippon Changhu self, and the paint mixing proportion is paint (SR-201): curing agent (SR-60) is 1:0.2, and the coating amount is controlled to be 50g/m 2 And after drying for 8 hours, grinding with No. 240 abrasive paper to remove burrs for later use.
2. Spraying a primer: blowing off dust on the surface of the base plate, spraying primer on the base plate by adopting a cross method, wherein the coating amount is controlled to be 120g/m 2 And after spraying, putting the mixture into a drying room, drying the mixture for 24 hours at the temperature and humidity of 25 ℃/56% RH, and polishing the mixture by using 400# abrasive paper for later use.
3. Spraying finish paint: blowing away the dust on the surface of the base plate coated with the primer, spraying Nippon long-moistening self-produced water-based matte clear finish JD-W801-3 on three plates by a cross method, wherein the coating amount is controlled at 120g/m 2 After spraying, the mixture is placed into a plate airing room, the temperature and humidity are 30 ℃/70% RH, the surface is dried for 1h, the mixture is placed into a 45 ℃ oven to be baked for 12h to obtain a sample, the sample is placed at the normal temperature for 24h, the performance of the sample is tested according to the following method, and the test result is recorded in a table 4.
The performance detection method comprises the following steps:
1. adhesion force: according to GB/T4893.4-2013, part 4 of adhesion cross-cutting determination method of paint film physical and chemical property tests on furniture surfaces, a medium-density fiberboard with the thickness of 5mm is adopted as a base material, a finishing paint is sprayed on the medium-density fiberboard sprayed with qualified primer of the same series, the cutting distance is 2mm, and the direct adhesion of the water-based finishing paint and the oil-based primer is determined.
2. Odor: judging whether residual smell exists or not by a direct smell smelling method; if no residual odor is present, marking as √; if there was residual odor, it was marked "X".
3. Appearance: (1) the appearance of the sample surface, such as transparency and fullness, was directly observed.
(2) And (4) after the sample is naturally dried for seven days, respectively carrying out a cold-hot cycle test, a water resistance test and a storage stability test.
Cold-hot cycle test: circulating the sample for 5 times, and observing whether the paint film has delaminating, cracking or whitening phenomena; if there is no obvious change, it is marked as "√; when appearance changes such as delamination, cracking, whitening and the like were observed, they were marked as "X".
Water resistance test: soaking the sample in water for 7 days, keeping the water temperature at 25 ℃, and observing whether the paint film turns white or bubbles; if there is no obvious change, it is marked as "√; when appearance changes such as whitish and bubbling occurred, the plate was marked by "X".
Storage stability test: placing the sample at normal temperature for one month, and observing whether the appearance of the sample is changed; if there is no obvious change, it is marked as "√; when appearance changes such as blush, bubbling, and cracking occurred, they were marked as "X".
Table 4 table for testing the properties of the examples and comparative samples
It can be seen from the combination of example 1, comparative examples 2 to 5, and table 4 that the adhesion, water resistance, and whitening resistance in cold and hot cycles of the water-based finish paint are greatly affected by the raw material resin, zinc stearate, fumed silica, and the like in the oily primer. By optimizing the raw materials, the performances of adhesion, water resistance, whitening resistance and the like between the water-based finish paint and the oil-based primer can be well solved.
In order to verify the suitability of the oily primer and the water-based finish paint, different types of water-based finish paints are matched according to a sample preparation method, the adhesion and the appearance of the water-based finish paints are tested again, and the test results are recorded in table 5.
TABLE 5 Performance test Table for oily primers of example 1 in combination with different waterborne finishes
According to the data in table 5, it can be seen that the oily primer disclosed by the invention has good adhesion and appearance performance when being used with water-based finishes of different types, which indicates that the oily primer disclosed by the invention has good adaptability to different water-based finishes.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. The oily primer for matching the water-based finish paint is characterized by comprising a main agent, a curing agent and a diluent;
the main agent comprises the following raw materials in percentage by weight: 40-45% of lauric acid alkyd resin, 25-30% of modified castor oil resin, 15-25% of filler, 0.5-1.0% of hydrophilic fumed silica, 3-5% of modified chlorine vinegar, 0.1-0.3% of functional assistant and 4-16% of organic solvent;
the modified vinyl chloride-vinyl acetate copolymer is prepared from vinyl chloride-vinyl acetate copolymer and an organic solvent in a weight ratio of 1: 4.
2. The oil-based primer for matching water-based finish paint according to claim 1, wherein the main agent comprises the following raw materials in percentage by weight: 40% of lauric acid alkyd resin, 28% of modified castor oil resin, 21% of filler, 0.5% of hydrophilic fumed silica, 3% of modified chlorine vinegar, 0.15% of functional assistant and 7.35% of organic solvent.
3. The oil-based primer for matching water-based finish paint as claimed in claim 1, wherein the main agent comprises the following raw materials in percentage by weight: the curing agent comprises the following raw materials in percentage by weight: 1-3% of HDI tripolymer, 45-55% of TDI additive, 20-25% of TDI additive and 20-30% of butyl acetate.
4. The oil-based primer for matching water-based finish paint as claimed in claim 1, wherein the diluent comprises the following raw materials in percentage by weight: 30-40% of propylene glycol methyl ether acetate, 20-30% of butyl acetate, 15-25% of ethyl acetate and 15-25% of dimethyl carbonate.
5. The oil-based primer for matching with a water-based finish paint, according to claim 1, wherein the weight ratio of the main agent to the curing agent to the diluent is 1:0.5: 0.5-0.8.
6. The oil-based primer for matching with water-based finish paint as claimed in claim 1, wherein the viscosity of the modified castor oil resin is 4500-10000mPa · s, and the hydroxyl value is 80 +/-5 mgKOH/g.
7. The oil-based primer for matching water-based finish paint as claimed in claim 1, wherein the filler is talcum powder, and the fineness of the talcum powder is 1000-1500 meshes.
8. The oil-based primer for matching water-based finish paint as claimed in claim 1, wherein the functional assistant comprises a defoaming agent, and the defoaming agent is a non-silicon defoaming agent.
9. The preparation method of the oil-based primer for matching with the water-based finish paint, according to claim 1, is characterized in that the main agent, the curing agent and the diluent are uniformly mixed according to a proportion to obtain the oil-based primer;
the preparation method of the main agent comprises the following steps: stirring lauric acid alkyd resin and modified castor oil resin, adding functional additives at 600rpm of 400-; then the rotating speed is reduced to 300-500rpm, hydrophilic gas-phase silicon dioxide and talcum powder are added, and dispersion is carried out for 10-20min at 1200-1500 rpm; adjusting the rotation speed to be 500-800rpm, adding the modified chlorine vinegar liquid and the organic solvent, and dispersing for 5-8 min.
10. The method for preparing the oil-based primer for matching water-based finish paint as claimed in claim 9, wherein the modified chlorine-vinegar solution is prepared by the following method: putting the organic solvent into a stirring container, and adding the vinyl chloride-vinyl acetate copolymer resin while stirring at the stirring speed of 400-600 rpm; after the addition, the solution is dispersed for 20-30min at the speed of 1200-1500rpm to obtain the modified chlorine vinegar solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210654447.5A CN114921171A (en) | 2022-06-10 | 2022-06-10 | Oily primer for matching with water-based finish paint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210654447.5A CN114921171A (en) | 2022-06-10 | 2022-06-10 | Oily primer for matching with water-based finish paint and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114921171A true CN114921171A (en) | 2022-08-19 |
Family
ID=82814723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210654447.5A Pending CN114921171A (en) | 2022-06-10 | 2022-06-10 | Oily primer for matching with water-based finish paint and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114921171A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382564A (en) * | 2011-09-01 | 2012-03-21 | 立邦涂料(成都)有限公司 | Polyurethane matt woodenware paint |
| CN103571319A (en) * | 2013-11-18 | 2014-02-12 | 广东巴德士化工有限公司 | High-fullness and shock-resistance polyurethane matte top-coat paint |
| CN111675960A (en) * | 2020-07-22 | 2020-09-18 | 成都巴德士涂料有限公司 | Polyurethane wood lacquer and preparation method and application thereof |
| CN111961394A (en) * | 2020-07-21 | 2020-11-20 | 广东立邦长润发科技材料有限公司 | PU white primer facilitating low-temperature quick drying and free of miliaria |
-
2022
- 2022-06-10 CN CN202210654447.5A patent/CN114921171A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382564A (en) * | 2011-09-01 | 2012-03-21 | 立邦涂料(成都)有限公司 | Polyurethane matt woodenware paint |
| CN103571319A (en) * | 2013-11-18 | 2014-02-12 | 广东巴德士化工有限公司 | High-fullness and shock-resistance polyurethane matte top-coat paint |
| CN111961394A (en) * | 2020-07-21 | 2020-11-20 | 广东立邦长润发科技材料有限公司 | PU white primer facilitating low-temperature quick drying and free of miliaria |
| CN111675960A (en) * | 2020-07-22 | 2020-09-18 | 成都巴德士涂料有限公司 | Polyurethane wood lacquer and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106243966B (en) | A kind of double-component aqueous woodenware white finish paint of composite multifunction and preparation method thereof | |
| CN107266963B (en) | PVC decorative film gravure surface printing water-based ink and color diluted gold oil thereof | |
| CN110205011A (en) | A kind of high brightness, high patience and the aqueous light top coat top coat for not playing dark bubble and prickly heat and preparation method thereof, application | |
| CN112646467A (en) | Wear-resistant high-transparency super-smooth PU open matte top-coat paint and preparation method thereof | |
| US11198230B2 (en) | Use of aqueous dispersion of siloxane for reducing grain puffing of wood substrate and article comprising anti-grain puffing coating | |
| CN103937402B (en) | A kind of preparation method of scratch-resistant polyurethane woodenware light black flour paint | |
| CN111040601A (en) | Aqueous skin-feel bi-component woodenware coating and application thereof | |
| CN112280417A (en) | Water-based wood paint | |
| CN102732134A (en) | Acrylate-grafted epoxy-polyurethane water-based woodwork coating | |
| CN105885672A (en) | Special PU (Poly Urethane) high-transparence matte clear surface coating for woodware as well as preparation method and application thereof | |
| CN108342139A (en) | A kind of woodenware multifunctional coating | |
| CN111961394A (en) | PU white primer facilitating low-temperature quick drying and free of miliaria | |
| CN106752540A (en) | A kind of high rigidity, wear-resistant aqueous woodware paint and preparation method thereof | |
| CN104962186B (en) | Energy conservation and environmental protection inner wall surface paint and preparation method thereof | |
| CN114921171A (en) | Oily primer for matching with water-based finish paint and preparation method thereof | |
| CN115141532B (en) | Low-VOC safe and environment-friendly water-based paint and preparation method thereof | |
| CN104774543B (en) | Imitation leather paint | |
| KR101054372B1 (en) | Water Soluble Polyurethane Paint Composition | |
| CN109913083A (en) | Aqueous crackle coating of removing and preparation method thereof may be selected | |
| CN114479585B (en) | Rain mark resistant high-color-retention high-polymer exterior wall coating and preparation method thereof | |
| CN115093783A (en) | Ultra-matte thin transparent matte top-coat for solid wood furniture and preparation method thereof | |
| CN115286986A (en) | Skin-feel matte clear finish paint for woodware, and preparation method and application thereof | |
| CN114149738A (en) | Polyurethane primer applied to melamine board | |
| CN116218342B (en) | Preparation method of water-based double-component full-feel matte finish paint | |
| JPS646235B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220819 |