CN114479631A - Two-component aqueous woodware skin-feel coating and preparation method and use method thereof - Google Patents
Two-component aqueous woodware skin-feel coating and preparation method and use method thereof Download PDFInfo
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- CN114479631A CN114479631A CN202111627931.0A CN202111627931A CN114479631A CN 114479631 A CN114479631 A CN 114479631A CN 202111627931 A CN202111627931 A CN 202111627931A CN 114479631 A CN114479631 A CN 114479631A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000000576 coating method Methods 0.000 title claims description 69
- 239000011248 coating agent Substances 0.000 title claims description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 95
- 239000003973 paint Substances 0.000 claims abstract description 90
- 239000000463 material Substances 0.000 claims abstract description 44
- 239000000839 emulsion Substances 0.000 claims abstract description 26
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 239000011347 resin Substances 0.000 claims abstract description 23
- 239000000080 wetting agent Substances 0.000 claims abstract description 21
- 230000001954 sterilising effect Effects 0.000 claims abstract description 20
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 20
- 239000002562 thickening agent Substances 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 13
- 230000002265 prevention Effects 0.000 claims abstract description 3
- 239000002023 wood Substances 0.000 claims description 69
- 239000004814 polyurethane Substances 0.000 claims description 35
- 229920002635 polyurethane Polymers 0.000 claims description 31
- 238000003756 stirring Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 13
- 238000005498 polishing Methods 0.000 claims description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 8
- 239000012752 auxiliary agent Substances 0.000 claims description 7
- 239000003112 inhibitor Substances 0.000 claims description 7
- 239000013530 defoamer Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 4
- 239000005002 finish coating Substances 0.000 claims description 2
- 238000005282 brightening Methods 0.000 description 42
- 230000003678 scratch resistant effect Effects 0.000 description 35
- 230000005856 abnormality Effects 0.000 description 12
- 239000000654 additive Substances 0.000 description 12
- 230000000996 additive effect Effects 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 230000003449 preventive effect Effects 0.000 description 10
- 238000001035 drying Methods 0.000 description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 239000002904 solvent Substances 0.000 description 8
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 7
- 239000002966 varnish Substances 0.000 description 7
- 235000013305 food Nutrition 0.000 description 6
- 238000011056 performance test Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 5
- 230000008033 biological extinction Effects 0.000 description 4
- 238000007766 curtain coating Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 230000001680 brushing effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 229920006313 waterborne resin Polymers 0.000 description 3
- 239000013035 waterborne resin Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000009775 high-speed stirring Methods 0.000 description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 230000001953 sensory effect Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical compound CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 description 1
- 241000510672 Cuminum Species 0.000 description 1
- 235000007129 Cuminum cyminum Nutrition 0.000 description 1
- RUPBZQFQVRMKDG-UHFFFAOYSA-M Didecyldimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCC[N+](C)(C)CCCCCCCCCC RUPBZQFQVRMKDG-UHFFFAOYSA-M 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000020095 red wine Nutrition 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 238000004383 yellowing 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
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/42—Gloss-reducing 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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a two-component aqueous woodware skin-feel paint, a preparation method and a use method thereof, wherein the paint comprises a component A and a component B with the mass ratio of 100: 15; the component A comprises the following components in parts by mass: 68-85 parts of water-based resin, 0.2-0.6 part of defoaming agent, 0.2-0.8 part of thickening agent, 2-3 parts of film-forming assistant, 3-10 parts of wax emulsion, 0.1-0.4 part of base material wetting agent, 0.2-1 part of surface hand feeling assistant, 0.1-0.4 part of sterilization and mildew prevention agent and 2-10 parts of water; the component B is a water-based curing agent. The two-component aqueous woodenware skin-feel paint disclosed by the invention has the characteristics of good uniformity, high scratch resistance, low gloss and good hardness.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a two-component aqueous woodware skin-feel coating and a preparation method and a use method thereof.
Background
The development of the waterborne wood coating in the last two decades has greatly developed the technology and the market. The market is gradually turning from a product which simply meets the requirements of environmental protection and health to an environmental protection product with high performance, high decoration and multiple functions. Because the solvent-based double-component PU coating is widely accepted by markets and customers in practical application for many years, the solvent-based coating is taken as a research, development and improvement direction for more applications and performances of the water-borne wood coating. The direction and the power of cumin and inexorable labor are also the direction and the power of people in the field of coatings for many years. Because the solvent-based paint has good hardness and wetting and wrapping property on powder, the matte finish paint of the solvent-based paint is scraped by a nail, and basically no scratch can be seen. The matte finish paint of the water-based wood coating has obvious brightening traces after nail scraping. Therefore, after the furniture surface coated with the water-based woodware coating is used for a long time, the surface has serious uneven gloss, and the appearance and the decorative effect are influenced.
The development direction of the water-based wood paint on the market at present mainly adopts no addition of matte powder to achieve an ultra-clear and transparent matte effect, for example, a Chinese patent with the application number of 201710912488.9 discloses a high-transparency matte clear finish and a preparation method thereof, and the water-based wood paint provided by the patent adopts a water-based acrylic acid matting emulsion matting mode to replace matting powder, so that the conventional matte water-based clear finish with better transparency is obtained. When the matte top-coat paint solves the problem of transparency, the problem of brightening of a compression-mark-resistant paint film cannot be solved. And for example, a Chinese patent with the application number of 201510037894.6 discloses a water-based curtain coating special matte toning finish paint, the water-based curtain coating special matte toning finish paint provided by the water-based curtain coating special toning finish paint adopts a curtain coating construction mode, and an obtained paint film is special in gloss, uniform, fine, high in hardness, good in fullness and resistance and can be matched with various oil-based paint primers for use, but the surface of the paint film obtained by the water-based paint still has the problem of brightening after scraping. .
Disclosure of Invention
The invention aims to provide a two-component aqueous woodware skin-feel paint, and a preparation method and a use method thereof, and the two-component aqueous woodware skin-feel paint has the characteristics of good uniformity, high scratch resistance, low gloss and good hardness.
The invention can be realized by the following technical scheme:
the invention discloses a two-component aqueous woodware skin-feel paint which comprises a component A and a component B in a mass ratio of 100: 15; the component A comprises the following components in parts by mass: 68-85 parts of water-based resin, 0.2-0.6 part of Digao 902W defoaming agent, 0.2-0.8 part of French Gaotai XS-71 thickening agent, 2-3 parts of Dow DPM film-forming additive, 3-10 parts of BYK-539 wax emulsion, 0.1-0.4 part of BYK-3455 base material wetting agent, 0.2-1 part of Dow 211S surface hand feeling additive, 0.1-0.4 part of Dow DB20 sterilization mildew inhibitor and 2-10 parts of water; the component B is a water-based curing agent.
Furthermore, the aqueous resin is aqueous polyurethane and/or aqueous polyurethane acrylate, and the Tg values of the aqueous polyurethane and the polyurethane acrylic acid are not less than 40 ℃.
Further, the defoaming agent is digao 902W, the thickening agent is French Gaotai XS-71, the film forming aid is Dow DPM, the wax emulsion is BYK-539, the base material wetting agent is BYK-3455, the surface hand feeling aid is Dow 211S, and the sterilization mildew preventive is Dow DB 20.
The invention also provides a preparation method of the two-component aqueous woodware skin-feel paint, which comprises the following steps:
s1, uniformly stirring the water-based resin, the defoaming agent, the thickening agent and the film-forming auxiliary agent at a high speed to obtain a first material;
s2, adding the wax emulsion into the first material, and uniformly stirring at a high speed to obtain a second material;
s3, mixing the second material with a substrate wetting agent, a surface hand feeling auxiliary agent, a sterilization mildew inhibitor and water, and adjusting the viscosity of the obtained material to 60 KU-70 KU to obtain the component A of the two-component aqueous woodware skin feeling coating.
S4, taking the water-based curing agent as a component B of the two-component water-based wood skin-feel paint.
Further, the fineness of the second material obtained in step S2 is less than 30 μm.
The invention also provides a use method for protecting the two-component aqueous woodware skin-feel paint, which specifically comprises the following steps: mixing the component A and the component B of the two-component aqueous woodware skin-feel paint with water according to the mass ratio of 100:15 to obtain the two-component aqueous woodware skin-feel paint for coating; and uniformly polishing the wood board coated with the water-based wood solid-color primer, and coating the two-component water-based wood skin-feel paint on the wood board to obtain the wood board coated with the two-component water-based wood skin-feel paint and finish coating.
The invention relates to a two-component aqueous woodware skin-feel coating, a preparation method and a use method thereof, which have the following beneficial effects:
the waterborne wood varnish provided by the invention takes waterborne resin as a raw material, and through the compatibility of the waterborne resin and the auxiliary agent, the problems that the waterborne paint is used for coating the surface of wood to realize uniform and consistent ultralow gloss and excellent scratch resistance are solved and realized, and meanwhile, the requirements on good protection of the wood, such as good boiled water resistance, red wine soaking resistance and yellowing resistance, are also realized.
The invention mainly adopts two types of waterborne resins, namely waterborne acrylic emulsion and waterborne polyurethane dispersoid, and matches the flatting agent with special functions to ensure that the waterborne paint has the performances. The water-based resin adopted by the invention has excellent hardness and flexibility, and has certain scratch resistance. The wax emulsion used in combination adopts special powder with ultrahigh hardness and super-strong scratch resistance. The matte scratch-resistant brightening two-component aqueous woodware skin-feel paint prepared by the technical scheme of the invention refers to the final sample plate obtained by coating by the method provided by the invention, and has the characteristics of uniform and consistent ultralow gloss and excellent scratch-resistant brightening.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following provides a detailed description of the product of the present invention with reference to the examples.
Example 1
The invention discloses a two-component aqueous woodware skin-feel paint which comprises a component A and a component B in a mass ratio of 100: 15; the component A comprises the following components in parts by mass: 75 parts of water-based resin, 0.2 part of defoaming agent, 0.8 part of thickening agent, 2.5 parts of film-forming additive, 3 parts of wax emulsion, 0.4 part of base material wetting agent, 0.6 part of surface hand feeling additive, 0.1 part of sterilization mildew preventive and 10 parts of water; the component B is a water-based curing agent.
In this embodiment, the aqueous resin is aqueous polyurethane and/or aqueous polyurethane acrylate, and the Tg values of the aqueous polyurethane and the polyurethane acrylic acid are ≧ 40 ℃. The defoamer is digao 902W, the thickener is French Gaotai XS-71, the film-forming aid is Dow DPM, the wax emulsion is BYK-539, the base material wetting agent is BYK-3455, the surface hand feeling aid is Dow 211S, and the sterilization mildew inhibitor is Dow DB 20.
Example 2
The invention discloses a two-component aqueous woodware skin-feel paint which comprises a component A and a component B in a mass ratio of 100: 15; the component A comprises the following components in parts by mass: 68 parts of water-based resin, 0.5 part of thickening agent, 2 parts of film-forming additive, 10 parts of wax emulsion, 0.25 part of base material wetting agent, 0.2 part of surface hand feeling additive, 0.4 part of sterilization and mildew prevention agent and 6 parts of water; the component B is a water-based curing agent.
In this embodiment, the aqueous resin is aqueous polyurethane and/or aqueous polyurethane acrylate, and the Tg values of the aqueous polyurethane and the polyurethane acrylic acid are ≧ 40 ℃. The emulsion has self extinction, no polishing powder is added, the defoamer is digao 902W, the thickener is French Gaotai XS-71, the film-forming aid is Dow DPM, the wax emulsion is BYK-539, the substrate wetting agent is BYK-3455, the surface hand feeling aid is Dow 211S, and the sterilization mildew inhibitor is Dow DB 20.
Example 3
The invention discloses a two-component aqueous woodware skin-feel paint which comprises a component A and a component B in a mass ratio of 100: 15; the component A comprises the following components in parts by mass: 85 parts of water-based resin, 0.4 part of defoaming agent, 0.2 part of thickening agent, 3 parts of film-forming additive, 6.5 parts of wax emulsion, 0.1 part of base material wetting agent, 1 part of surface hand feeling additive, 0.25 part of sterilization mildew preventive and 2 parts of water; the component B is a water-based curing agent.
In this embodiment, the aqueous resin is aqueous polyurethane and/or aqueous polyurethane acrylate, and the Tg values of the aqueous polyurethane and the polyurethane acrylic acid are ≧ 40 ℃. The emulsion has self extinction, no polishing powder is added, the defoamer is Doigao 902W, the thickener is French Gaotai XS-71, the film forming aid is Dow DPM, the wax emulsion is BYK-539, the base material wetting agent is BYK-3455, the surface hand feeling aid is Dow 211S, and the sterilization mildew preventive is Dow DB 20.
Example 4
The invention discloses a two-component aqueous woodware skin-feel paint which comprises a component A and a component B in a mass ratio of 100: 15; the component A comprises the following components in parts by mass: 80 parts of water-based resin, 0.5 part of defoaming agent, 0.3 part of thickening agent, 2.3 parts of film-forming additive, 5 parts of wax emulsion, 0.2 part of base material wetting agent, 0.4 part of surface hand feeling additive, 0.2 part of sterilization mildew preventive and 4 parts of water; the component B is a water-based curing agent.
In this embodiment, the aqueous resin is aqueous polyurethane and/or aqueous polyurethane acrylate, and the Tg values of the aqueous polyurethane and the polyurethane acrylic acid are ≧ 40 ℃. The emulsion has self extinction, no polishing powder is added, the defoamer is Doigao 902W, the thickener is French Gaotai XS-71, the film forming aid is Dow DPM, the wax emulsion is BYK-539, the base material wetting agent is BYK-3455, the surface hand feeling aid is Dow 211S, and the sterilization mildew preventive is Dow DB 20.
Example 5
The invention discloses a two-component aqueous woodware skin-feel paint which comprises a component A and a component B in a mass ratio of 100: 15; the component A comprises the following components in parts by mass: 72 parts of water-based resin, 0.3 part of defoaming agent, 0.5 part of thickening agent, 2.8 parts of film-forming additive, 6 parts of wax emulsion, 0.2 part of base material wetting agent, 0.6 part of surface hand feeling additive, 0.2 part of sterilization mildew preventive and 3 parts of water; the component B is a water-based curing agent.
In this embodiment, the aqueous resin is aqueous polyurethane and/or aqueous polyurethane acrylate, and the Tg values of the aqueous polyurethane and the polyurethane acrylic acid are ≧ 40 ℃. The emulsion has self extinction, no polishing powder is added, the defoamer is Doigao 902W, the thickener is French Gaotai XS-71, the film forming aid is Dow DPM, the wax emulsion is BYK-539, the base material wetting agent is BYK-3455, the surface hand feeling aid is Dow 211S, and the sterilization mildew preventive is Dow DB 20.
Example 6
Aiming at the preparation method of the two-component aqueous woodware skin-feel paint capable of protecting the skin simultaneously, the preparation method comprises the following steps:
s1, uniformly stirring the water-based resin, the defoaming agent, the thickening agent and the film-forming auxiliary agent at a high speed to obtain a first material;
and S2, adding the wax emulsion into the first material, and uniformly stirring at a high speed to obtain a second material. Controlling the fineness of the material to be less than 30 mu m;
s3, mixing the second material with the base material wetting agent, the sterilization mildew preventive and water, and adjusting the viscosity of the obtained material to 60 KU-70 KU to obtain the component A of the two-component aqueous woodware skin-feel coating.
S4, taking the water-based curing agent as a component B of the two-component water-based wood skin-feel paint.
The method comprises the steps of mixing the water-based resin, the defoaming agent, the thickening agent and the film-forming assistant, and uniformly mixing to obtain a first material. The water-based resin is placed in a dispersion tank, the defoaming agent thickener and the film forming aid are added into the water-based resin under low-speed stirring, and the water-based resin and the film forming aid are uniformly mixed to obtain a first material. The stirring method of the present invention is not particularly limited, and a stirring technique known to those skilled in the art may be employed. In the present invention, the low-speed stirring speed is preferably 400 to 600 rpm, and more preferably 450 to 550 rpm.
After the first material is obtained, the wax emulsion, the wetting agent and the hand feeling auxiliary agent are added into the first material to obtain a second material. Dispersing under high-speed stirring to obtain a second material with fineness less than 30 μm. In the invention, the high-speed stirring speed is preferably 1200-1500 rpm, and more preferably 1300-1400 rpm.
After the second material is obtained, the second material is mixed with the substrate wetting agent, the sterilization mildew preventive and water, the viscosity of the obtained material is adjusted to 60 KU-70 KU, and the matte scratch-resistant bright two-component water-based wood coating A component is obtained. Preferably, in the invention, under a low-speed stirring state, adding a base material wetting agent, a sterilization mildew inhibitor and water into the second material, dispersing at a medium-speed stirring speed, and adjusting the viscosity of the obtained mixture to 60 KU-70 KU to obtain the matte scratch-resistant bright two-component aqueous wood coating A component. In the invention, the medium-speed stirring speed is preferably 800 to 1000 revolutions per minute, and more preferably 850 to 950 revolutions per minute; the moderate-speed stirring time is preferably 5 minutes to 15 minutes, and more preferably 10 minutes.
Example 7
The invention also provides a use method for protecting the two-component aqueous woodware skin-feel paint, which specifically comprises the following steps:
mixing the matte scratch-resistant brightening two-component aqueous woodware skin-feel paint in the scheme or the matte scratch-resistant brightening two-component aqueous woodware skin-feel paint A component and B component obtained by the method in the scheme with water to obtain matte scratch-resistant brightening two-component aqueous varnish for coating;
uniformly polishing the wood board coated with the wood clear primer, coating the matte scratch-resistant brightening two-component water-based varnish on the wood board, obtaining the wood board coated with the matte scratch-resistant brightening two-component water-based wood coating, and finishing the wood board coating
The matte scratch-resistant brightening two-component aqueous woodware skin-feel paint provided by the invention is prepared by mixing the component A, the component B and water before use, and the matte scratch-resistant brightening two-component aqueous woodware skin-feel paint for coating is obtained. In the matte scratch-resistant brightening two-component aqueous woodware skin-feel coating, the weight ratio of the component A to the component B to water is preferably A: B: water =100:15 (15-20), and more preferably A: B: water =100:15: 20.
After obtaining the matte scratch-resistant brightening two-component aqueous woodware skin-feel paint for coating, uniformly polishing the wood board coated with the woodware clear primer, coating the matte scratch-resistant brightening two-component aqueous woodware skin-feel paint on the wood board, obtaining the wood board coated with the matte scratch-resistant brightening two-component aqueous woodware skin-feel paint, and finishing the wood board coating.
The method of polishing is not particularly limited in the present invention, and the polishing method may be performed by a polishing method known to those skilled in the art, for example, 400# sandpaper may be used for polishing. The method of coating is not particularly limited in the present invention, and the coating method known to those skilled in the art may be adopted, and in the present invention, the coating is preferably spraying or brushing. The method for spraying and brushing is not particularly limited, and the technical scheme of spraying and brushing known to the skilled person can be adopted, for example, the matte scratch-resistant brightening two-component aqueous woodware skin-feel paint for coating is placed in a spray gun with the caliber of 2.0mm, and is sprayed on a primer plate. In the present invention, the number of times of the coating is preferably 1; the coating weight of the wet film obtained by each coating is preferably 180g/m 2-250 g/m2, more preferably 200g/m 2-270 g/m 2; the drying temperature of each coating is preferably 30-45 ℃, and more preferably 35-40 ℃; the time interval of each coating is preferably 4 to 6 hours, and more preferably 6 hours.
In the invention, the primer is preferably a water-based solid color primer, a solvent-based two-component polyurethane solid color primer, a solvent-based nitro primer or a UV primer; the water-based solid color primer may be more preferable in consideration of the low VOC scheme, and the present invention does not specifically limit the water-based solid color primer, and may use a water-based solid color primer well known to those skilled in the art. When the matte scratch-resistant brightening two-component aqueous woodenware skin-feel paint is used in combination with various clear primers and solid primers, the paint film defects such as bottom biting, collapse, poor foaming adhesion, whitening and the like can be avoided.
The invention carries out performance test comparison on a Xuanwei matte anti-scratch brightening two-component aqueous woodware skin-feel paint plate, and the specific process is as follows:
the adhesion of the obtained paint film is detected by adopting the national standard 'grid drawing test of paint films of colored paint and varnish' with the standard number of GB 9286-1998, and the grid drawing distance is 2 mm;
the scratch resistance of the obtained paint film is tested by adopting the national standard 'scratch test of colored paint and varnish' with the standard number GB/T9279-2007.
The gloss of the paint films was measured using the national standard "determination of 20 °, 60 ° and 85 ° specular gloss of paint films of pigmented paints and varnishes containing no metallic pigment" with the Standard number GB/T9754-2007.
The physicochemical property of the paint film is tested by adopting the national standard 'waterborne wood coating for indoor decoration' with the standard number GB/T23999-2009
The test result of the invention shows that the matte scratch-resistant brightening two-component aqueous woodware skin-feel paint provided by the invention has the advantages of uniform and flat paint film surface gloss, smooth hand feeling, excellent physical and chemical properties, no obvious brightening of scratches, and no adverse conditions such as paint stripping, bottom biting, collapse, bleeding, foaming and the like.
For further illustration of the present invention, the matte scratch-resistant brightening two-component aqueous wood skin-feel paint provided by the present invention, the preparation method and the using method thereof are described in detail below with reference to the application examples, but they should not be construed as limiting the scope of the present invention.
Table 1 application examples 1-3 component ratios
| Application example 1 | Application example 2 | Application example 3 | |
| ARCHROMA1212 | 60 | 70 | 75 |
| WANHUA3102 | 20 | 10 | 5 |
| TEGO 810 | 0.4 | 0.4 | 0.4 |
| Tafigel PUR 44 | 0.5 | 0.5 | 0.5 |
| DPNB | 4 | 3 | 3 |
| DPM | 0 | 1 | 1 |
| BYK539 | 5 | 4 | 7 |
| BYK333 | 2 | 4 | 1 |
| TEGO Twin 4100 | 0.3 | 0.3 | 0.3 |
| ACTICIDE MV | 0.1 | 0.1 | 0.1 |
| Water (W) | 7.7 | 6.7 | 6.7 |
The application example is prepared by the method of example 6, and the application method of the matte scratch-resistant brightening two-component aqueous wood skin-feel coating obtained in the application examples 1 to 3 comprises the following steps:
the matte scratch-resistant brightening two-component aqueous woodware skin-feel paint or the matte scratch-resistant brightening two-component aqueous woodware skin-feel paint obtained by the method in the scheme is prepared by mixing the component A, the component B and water in a weight ratio of A: B: water =100:15:15 to obtain the matte scratch-resistant brightening two-component aqueous woodware skin-feel paint for coating;
uniformly polishing the wood board coated with the water-based wood solid color primer, and coating the matte scratch-resistant brightening two-component water-based wood skin-feel paint of the above embodiments 1-3 on the wood board, so as to obtain the wood board coated with the matte scratch-resistant brightening two-component water-based wood skin-feel paint, and finishing the wood board coating. The coating is evenly sprayed by using a rock field NEW-101 gravity type spray gun with the caliber of 2.0mm, and the coating weight is 200g/m2The drying temperature was 40 ℃ and the drying time was 4 hours, and then the test was carried out after standing at room temperature for 7 days. The performance test results are as follows:
table 2 results of performance test of application examples 1 to 3
| Application example 1 | Application example 2 | Application example 3 | Comparison results | Test method | |
| Appearance of the product | Is flat and smooth | Is flat and smooth | Is flat and smooth | Rough paint film | Observation with naked eyes |
| Hand feeling | Fine, smooth and comfortable | Fine, smooth and comfortable | Fine and smooth | Fine, smooth and comfortable | Hand touch |
| Transparency of | Superior food | Superior food | Superior food | Poor complexion and whitish hair | Observation with naked eyes |
| Gloss (60 °/85 °) | 1.5%/2.5% | 1.7%/2% | 2%/7.5% | 2%/4% | GB/T9754 |
| Scratch mark | Become slightly brighter | Without brightening | Become slightly brighter | Become bright obviously | Visual observation |
| Adhesion force | Level 0 | Grade 0 | Level 0 | Level 0 | GB 9286-1998 |
| Water resistance of 24 hours | No abnormality | No abnormality | No abnormality | Severe blushing and failure to recover | GB/T23999-2009 |
| Boiling water resistance for 15 minutes | No abnormality | No abnormality | No abnormality | Pronounced whitish and failure to recover | GB/T23999-2009 |
As can be seen from the test results in Table 2, when the matte anti-scratch brightening two-component aqueous wood skin-feel paint is used in combination with the aqueous wood paint solid-color paint, the matte anti-scratch brightening two-component aqueous wood skin-feel paint has more obvious advantages than the common aqueous wood full-matte skin-feel paint in both sensory tests and resistance tests.
Application example 4
The matte scratch-resistant brightening two-component aqueous woodenware skin-feel paint in the application example 2 is prepared by mixing the component A, the component B and water according to the weight ratio of A to B to water =100 to 15; the wood board coated with the solvent-based two-component PU (polyurethane) clear primer is uniformly polished, and the matte scratch-resistant brightening two-component aqueous wood coating for coating in the above example 1 is coated thereon to obtain the wood board coated with the matte scratch-resistant brightening two-component aqueous wood coating and finish the wood board coating. The coating is evenly sprayed by using a 2.0 mm-caliber rock field NEW-101 gravity type spray gun, the coating weight is 200g/m2, the drying temperature is 40 ℃, the drying time is 4 hours, and then the coating is placed at room temperature for 7 days for performance test.
Application example 5
The matte scratch-resistant brightening two-component aqueous woodware skin-feel paint used in the application example 2 is prepared by mixing the component A, the component B and water according to the weight ratio of A to B to water =100 to 15; the wood board coated with the solvent type PU and the nitro solid color paint is evenly polished, and the matte scratch-resistant brightening two-component aqueous wood skin-feel paint for coating in the embodiment 1 is coated on the wood board, so that the wood board coated with the matte scratch-resistant brightening two-component aqueous wood skin-feel paint is obtained, and the wood board coating is completed. The coating is evenly sprayed by using a 2.0 mm-caliber rock field NEW-101 gravity type spray gun, the coating weight is 200g/m2, the drying temperature is 40 ℃, the drying time is 4 hours, and then the coating is placed at room temperature for 7 days for performance test.
Application example 6
The matte scratch-resistant brightening two-component aqueous woodenware skin-feel paint in the application example 2 is prepared by mixing the component A, the component B and water according to the weight ratio of A to B to water =100 to 15; the wood board coated with the UV (ultraviolet light curing) clear primer was uniformly polished, and the matte scratch-resistant brightened two-component aqueous wood skin-feel paint for coating of example 1 was coated thereon to obtain a wood board coated with the matte scratch-resistant brightened two-component aqueous wood skin-feel paint and finish the coating of the wood board. The coating is evenly sprayed by using a 2.0 mm-caliber rock field NEW-101 gravity type spray gun, the coating weight is 200g/m2, the drying temperature is 40 ℃, the drying time is 4 hours, and then the coating is placed at room temperature for 7 days for performance test.
The test results of application examples 4 to 6 are as follows:
table 3 results of tests of application examples 4 to 6
| Application example 4 | Application example 5 | Application example 6 | Test method | |
| Appearance of the product | Is flat and smooth | Is flat and smooth | Is flat and smooth | Visual observation |
| Hand feeling | Fine, smooth and comfortable | Fine, smooth and comfortable | Fine, smooth and comfortable | Hand touch |
| Transparency of | Superior food | Superior food | Superior food | Observation with naked eyes |
| Gloss (60 °/85 °) | 1.4%/2.6% | 1.8%/2.9% | 1.7%/1.7% | GB/T9754 |
| Scratch mark | Without brightening | Without brightening | Without brightening | Observation with naked eyes |
| Adhesion force | Level 0 | Level 0 | Level 0 | GB 9286-1998 |
| Water resistance for 24 hours | No abnormality | No abnormality | No abnormality | GB/T23999-2009 |
| Boiling water resistance for 15 minutes | No abnormality | No abnormality | No abnormality | GB/T23999-2009 |
As can be seen from the test results in table 3, the matte scratch-resistant brightening two-component aqueous wood skin-feel coating of the present invention has good performance in both sensory test and resistance test when used in combination with different wood varnish clear primers.
The above embodiments are only specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications are possible without departing from the inventive concept, and such obvious alternatives fall within the scope of the invention.
Claims (6)
1. The two-component water-based woodware skin-feel coating is characterized by comprising a component A and a component B in a mass ratio of 100: 15;
the component A comprises the following components in parts by mass: 68-85 parts of water-based resin, 0.2-0.6 part of defoaming agent, 0.2-0.8 part of thickening agent, 2-3 parts of film-forming assistant, 3-10 parts of wax emulsion, 0.1-0.4 part of base material wetting agent, 0.2-1 part of surface hand feeling assistant, 0.1-0.4 part of sterilization and mildew prevention agent and 2-10 parts of water;
the component B is a water-based curing agent.
2. The two-component aqueous wood skin-feel coating of claim 1, characterized in that: the water-based resin is water-based polyurethane and/or water-based polyurethane acrylate, and the Tg value of the water-based polyurethane and the Tg value of the polyurethane acrylate are not less than 40 ℃.
3. The two-component aqueous wood skin-feel coating of claim 2, characterized in that: the defoamer is digao 902W, the thickener is French Gaotai XS-71, the film-forming aid is Dow DPM, the wax emulsion is BYK-539, the base material wetting agent is BYK-3455, the surface hand feeling aid is Dow 211S, and the sterilization mildew inhibitor is Dow DB 20.
4. A preparation method of the two-component aqueous woodware skin-feel paint according to any one of claims 1 to 3 is characterized by comprising the following steps:
s1, uniformly stirring the water-based resin, the defoaming agent, the thickening agent and the film-forming auxiliary agent at a high speed to obtain a first material;
s2, adding the wax emulsion into the first material, and uniformly stirring at a high speed to obtain a second material;
s3, mixing the second material with a substrate wetting agent, a surface hand feeling auxiliary agent, a sterilization mildew inhibitor and water, and adjusting the viscosity of the obtained material to 60 KU-70 KU to obtain a component A of the two-component aqueous woodware skin feeling coating;
s4, using the water-based curing agent as the B component of the two-component water-based woodware skin-feel paint.
5. The preparation method of the two-component aqueous wood skin-feel paint according to claim 4, characterized in that: the fineness of the second material obtained in the step S2 is less than 30 μm.
6. A method of using the two-component aqueous woodware skin-feel paint according to any one of claims 1 to 3, characterized by comprising the following steps: mixing the component A and the component B of the two-component aqueous woodware skin-feel paint with water according to the mass ratio of 100:15:15 to obtain the two-component aqueous woodware skin-feel paint for coating;
and uniformly polishing the wood board coated with the water-based wood solid-color primer, and coating the two-component water-based wood skin-feel paint on the wood board to obtain the wood board coated with the two-component water-based wood skin-feel paint and finish coating.
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Application publication date: 20220513 |