CN111777933A - Aqueous two-component white elastic wood finish and preparation method thereof - Google Patents
Aqueous two-component white elastic wood finish and preparation method thereof Download PDFInfo
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- CN111777933A CN111777933A CN202010522428.8A CN202010522428A CN111777933A CN 111777933 A CN111777933 A CN 111777933A CN 202010522428 A CN202010522428 A CN 202010522428A CN 111777933 A CN111777933 A CN 111777933A
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- water
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- acrylic resin
- wood finish
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- 239000002023 wood Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 101
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 35
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 35
- 239000000839 emulsion Substances 0.000 claims abstract description 33
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 33
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims abstract description 26
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003973 paint Substances 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000004814 polyurethane Substances 0.000 claims abstract description 14
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 13
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 13
- 229920002635 polyurethane Polymers 0.000 claims abstract description 13
- 239000000080 wetting agent Substances 0.000 claims abstract description 13
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 12
- 239000002562 thickening agent Substances 0.000 claims abstract description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000654 additive Substances 0.000 claims abstract description 10
- 230000000996 additive effect Effects 0.000 claims abstract description 10
- 239000002002 slurry Substances 0.000 claims abstract description 10
- 235000010215 titanium dioxide Nutrition 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 239000003112 inhibitor Substances 0.000 claims abstract description 9
- 239000002270 dispersing agent Substances 0.000 claims abstract description 8
- 230000001954 sterilising effect Effects 0.000 claims abstract description 7
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 7
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 239000006185 dispersion Substances 0.000 claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 238000007689 inspection Methods 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical compound CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 claims description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- 230000000844 anti-bacterial effect Effects 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 3
- GMKMEZVLHJARHF-UHFFFAOYSA-N 2,6-diaminopimelic acid Chemical compound OC(=O)C(N)CCCC(N)C(O)=O GMKMEZVLHJARHF-UHFFFAOYSA-N 0.000 claims description 2
- 239000013530 defoamer Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 6
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 235000013372 meat Nutrition 0.000 abstract description 4
- 239000002904 solvent Substances 0.000 abstract description 3
- 238000004383 yellowing Methods 0.000 abstract description 2
- 238000001035 drying Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 229910014314 BYK190 Inorganic materials 0.000 description 1
- 241000199223 Elaeocarpus kirtonii Species 0.000 description 1
- 235000009414 Elaeocarpus kirtonii Nutrition 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 235000013584 Tabebuia pallida Nutrition 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000006254 rheological additive Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000004094 surface-active agent 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a water-based double-component white elastic wood finish and a preparation method thereof, wherein the preparation method comprises the following steps: a component A and a component B; the component A comprises the following raw materials in percentage by weight: 60-65% of water-based hydroxyl acrylic resin emulsion, 0.3-1% of water-based dispersant, 3-5% of elastic powder, 1-2% of matting powder, 1-3% of water-based wax emulsion, 0.2-0.5% of water-based defoaming agent, 0.2-0.5% of water-based wetting agent, 0.2-0.5% of water-based leveling agent, 2-6% of water-based film-forming additive, 0.1-0.2% of water-based sterilization mildew inhibitor, 18-25% of water-based titanium white slurry, 0.5-1% of water-based polyurethane thickener and 1-4% of deionized water. The component B comprises the following raw materials in percentage by weight: 70-80% of hydrophilic aliphatic polyisocyanate of Hexamethylene Diisocyanate (HDI), 20-30% of propylene glycol monomethyl ether acetate and 0.5-2% of water removing agent. The coating provided by the invention has low gloss, high resistance, good thick meat feeling and smoothness; the paint film is combined with the solvent-based primer more compactly, and the adhesive force is better; compared with oily paint, the paint is more environment-friendly and yellowing-resistant, and has stronger performances of hardness, water resistance, chemical resistance and the like; the preparation method has simple process and strong operability.
Description
Technical Field
The invention relates to the field of coatings, in particular to a water-based double-component white elastic wood finish with high resistance, high meat thickness and smoothness and a preparation method thereof.
Background
With the increasing awareness of the society on environmental protection, it is imperative to replace oil-based coatings with environment-friendly water-based coatings. The water-based paint takes water as a dissolving medium, has the advantages of no toxicity, environmental protection, no odor, few volatile matters, no combustion, no explosion and the like, and is a green and environment-friendly product without using an organic solvent as a diluent. More and more businesses are adopting water-based coatings to meet the environmental requirements of customers and themselves. However, the existing aqueous two-component white elastic wood finish in the market has various defects, such as poor resistance, poor hand feeling, poor scratch resistance and the like, and the overall coating effect of furniture products is greatly influenced.
Therefore, how to develop a water-based two-component white elastic wood finish with high resistance, high fleshy feel and smoothness solves the problems of the existing water-based two-component white elastic wood finish, and becomes one of the problems to be solved urgently by coating manufacturers with prospective consciousness in the industry.
Disclosure of Invention
The invention aims to provide a water-based finish paint with low gloss, high resistance, good thick meat feeling and smooth performance.
In order to solve the technical problems, the invention adopts the following technical scheme:
an aqueous two-component white elastic woodware finish paint, comprising: a component A and a component B;
the component A is as follows:
the component B is as follows:
70-80% of hydrophilic aliphatic polyisocyanate of Hexamethylene Diisocyanate (HDI)
Propylene glycol methyl ether acetate 20-30%
0.5 to 2 percent of water removing agent
The mass ratio of the component A to the component B is 100: (10-20);
the aqueous hydroxy acrylic resin emulsion comprises high-hydroxy acrylic resin and/or medium-hydroxy acrylic resin; the hydroxyl content of the high-hydroxyl acrylic resin is 3-4%, and the solid content is 40-47%; the hydroxyl content of the medium hydroxyl acrylic resin is 2-2.5 percent, and the solid content is 38-45 percent;
the dosage of the high hydroxyl acrylic resin is 10-18 parts by weight; the dosage of the medium hydroxyl acrylic resin is 42-55 parts by weight;
the aqueous dispersant comprises BYK190 and/or TEGO 750W;
the elastic powder is DADADAYINGHUA 5070D;
the extinction powder is Degussa OK 520;
the water-based wax emulsion comprises high-density polyethylene wax emulsion such as BYK513 and/or Longhai 2558;
the water-based defoaming agent comprises one or more of polyether modified defoaming agents such as TEGO902W, TEGO810, BYK028 and the like;
the aqueous wetting agent comprises active silicon surfactants such as TEGO270 and/or TEGO4100 and/or BYK 346;
the aqueous leveling agent comprises one or more polyether silane auxiliaries such as TEGO410, TEGO450 and BYK 333;
the aqueous film forming aid comprises one or more of DPM, DPNB, propylene glycol;
the aqueous sterilization and mildew-proof agent comprises one or more of BEK100L and BEK 560;
the water-based titanium white slurry is Kedi 1008-SI water-based titanium white slurry;
the aqueous polyurethane thickener comprises one or more polyurethane associated rheological additives such as RM-2020, RM-8W, TT615 and the like;
the water removing agent comprises one or more OF Additive Ti and Additive OF.
Further, the invention also provides a preparation method of the aqueous double-component white elastic wood finish, which comprises the following steps:
the preparation method of the component A comprises the following steps:
5) filtering the medium-high hydroxyl acrylic resin emulsion and the medium-high hydroxyl acrylic resin emulsion in the formula into a clean container by using a 300-mesh filter screen, and respectively adding the aqueous dispersant, the elastic powder and the matting powder in sequence; adjusting the dispersion machine to 800-;
6) when the fineness is less than or equal to 20um by the inspection of the sampling scraper, adding a water-based defoaming agent, and adjusting the dispersion machine to 1500-1800r/min for dispersion for more than 25 min;
7) sampling and dripping two drops of wetting agent for spraying to observe whether the appearance of the coating film is shrinkage cavity or not, and after confirming that no shrinkage cavity exists, rotating the speed of the dispersion machine to 800-;
8) slowly adding wetting agent, film-forming assistant, water-based bactericidal mildew inhibitor, water-based leveling agent, water-based wax emulsion, water-based titanium white slurry and water-based polyurethane thickener (diluted by deionized water in the formula), stirring for 30min, and filtering by using a 300-mesh filter screen to obtain a component A finished product after the inspection is qualified;
the preparation method of the component B comprises the following steps: taking a dry and anhydrous container, sequentially adding hydrophilic aliphatic polyisocyanate based on Hexamethylene Diisocyanate (HDI), propylene glycol monomethyl ether acetate and a water removing agent, mixing and stirring uniformly, and subpackaging into a closed iron can.
When in use, the A, B components are uniformly mixed according to a proportion to obtain the aqueous double-component white elastic wood finish with high resistance, high meat thickness and smoothness.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention adopts the high hydroxyl acrylic resin emulsion and the medium hydroxyl acrylic resin emulsion as main raw materials, so that the wetting property of the wood is very good and the bonding degree between the wood and the water-based white wood paint is very high in the coating application process;
2. the matching of the high-hydroxyl acrylic resin emulsion and the medium-hydroxyl acrylic resin emulsion has good film-forming performance, the combination of a paint film and a solvent type primer is more compact, and the adhesive force is better;
3. according to the invention, through the special selection and proportion of various auxiliary agents and auxiliary materials, the finally obtained water-based finish paint has good hand feeling of thickness and smoothness which can be compared favorably with that of oil-based paint, and is more environment-friendly and yellowing-resistant compared with the oil-based paint, and has stronger performances of hardness, water resistance, chemical resistance and the like;
4. the preparation method of the aqueous double-component white elastic wood finish provided by the invention is simple in process, strong in operability, capable of realizing continuous production, and suitable for popularization and application of industrial mass production.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to specific embodiments.
For convenience in describing features and advantages of the present invention, in the following embodiments:
the aqueous hydroxy acrylic resin emulsion in the component A is selected from ACURE 2470 (high hydroxyl) of Bayer and environmental protection science and technology of Guangdong flower and mountain Limited
2008 (medium hydroxyl); the aqueous film-forming additive is DPM and DPNB of the Dow chemical; the aqueous dispersant is TEGO750W of winning company; the elastic powder is prepared from day-refined 5070D; the extinction powder is Degussa OK 520; BYK513 of Pico chemistry is selected as the water-based wax emulsion; the water-based antifoaming agent is selected from TEGO902W and TEGO810 of winning companies;
the water-based wetting agent is TEGO4100 of winning and creating company; the waterborne leveling agent is selected from TEGO410 of winning company and BYK333 of Pico chemistry; the water-based sterilization mildew preventive selects BEK100L and BEK560 of Guangzhou Zhi chemical industry; the water-based titanium white slurry is 1008-SI water-based titanium white slurry of Guangzhou Kedi company; the aqueous polyurethane thickener is selected from Dow chemical RM-2020 and RM-8W.
2655 of Bayer company is selected as hydrophilic aliphatic polyisocyanate of Hexamethylene Diisocyanate (HDI) in the component B; propylene glycol methyl ether acetate (PMA) is PMA produced by Dow chemical production; the water removing agent is made of Additive Ti of Bayer company.
The materials described in the examples are commercially available and are given by the manufacturer and the reference numerals described in the specification.
In order to make the technical solution of the present invention clearer and clearer, the present invention will be further described in detail by referring to examples below.
Example 1
Preparing aqueous double-component white elastic wood finish according to the following proportion;
the component A comprises:
the component B comprises:
80% of hydrophilic aliphatic polyisocyanate of Hexamethylene Diisocyanate (HDI)
Propylene glycol methyl ether acetate 19%
1 percent of water removing agent.
The water-based defoaming agent is prepared from the following components in percentage by mass of 1: TEGO902W and TEGO810 of 1; the mass ratio of the water-based leveling agent is 1: TEGO410 and BYK333 of 1; the water-based film-forming additive is prepared from the following components in percentage by mass of 1: 1 DPM and DPNB; the water-based sterilization mildew inhibitor is prepared from the following components in percentage by mass of 1: 1 BEK100L and BEK 560; the water-based polyurethane thickener comprises the following components in percentage by mass of 1: RM-2020 and RM-8W of 1.
A. The weight ratio of the component B is 100: 15.
the preparation method comprises the following steps:
the preparation method of the component A comprises the following steps:
1) filtering the medium-high hydroxyl acrylic resin emulsion and the medium-high hydroxyl acrylic resin emulsion in the formula into a clean container by using a 300-mesh filter screen, and respectively adding the aqueous dispersant, the elastic powder and the matting powder in sequence; adjusting the dispersion machine to 800-;
2) when the fineness is less than or equal to 20um by the inspection of the sampling scraper, adding a water-based defoaming agent, and adjusting the dispersion machine to 1500-1800r/min for dispersion for more than 25 min;
3) sampling and dripping two drops of wetting agent for spraying to observe whether the appearance of the coating film is shrinkage cavity or not, and after confirming that no shrinkage cavity exists, rotating the speed of the dispersion machine to 800-;
4) slowly adding wetting agent, film-forming assistant, water-based bactericidal mildew inhibitor, water-based leveling agent, water-based wax emulsion, water-based titanium white slurry and water-based polyurethane thickener (diluted by deionized water in the formula), stirring for 30min, and filtering with a 300-mesh filter screen to obtain the component A finished product after the inspection is qualified.
The preparation method of the component B comprises the following steps: taking a dry and anhydrous container, sequentially adding hydrophilic aliphatic polyisocyanate based on Hexamethylene Diisocyanate (HDI), propylene glycol monomethyl ether acetate and a water removing agent, mixing and stirring uniformly, and subpackaging into a closed iron can.
When in use, the A, B components are uniformly mixed according to a proportion to prepare the aqueous two-component white elastic wood finish.
Example 2
Preparing aqueous double-component white elastic wood finish according to the following proportion;
the component A comprises:
the component B comprises:
80% of hydrophilic aliphatic polyisocyanate of Hexamethylene Diisocyanate (HDI)
Propylene glycol methyl ether acetate 19%
1 percent of water removing agent.
The water-based defoaming agent is prepared from the following components in percentage by mass of 1: TEGO902W and TEGO810 of 1; the mass ratio of the water-based leveling agent is 1: TEGO410 and BYK333 of 1; the water-based film-forming additive is prepared from the following components in percentage by mass of 1: 1 DPM and DPNB; the water-based sterilization mildew inhibitor is prepared from the following components in percentage by mass of 1: 1 BEK100L and BEK 560; the water-based polyurethane thickener comprises the following components in percentage by mass of 1: RM-2020 and RM-8W of 1. A. The weight ratio of the component B is 100: 15.
the preparation method comprises the following steps:
the preparation method of the component A comprises the following steps:
1) filtering the medium-high hydroxyl acrylic resin emulsion and the medium-high hydroxyl acrylic resin emulsion in the formula into a clean container by using a 300-mesh filter screen, and respectively adding the aqueous dispersant, the elastic powder and the matting powder in sequence; adjusting the dispersion machine to 800-;
2) when the fineness is less than or equal to 20um by the inspection of the sampling scraper, adding a water-based defoaming agent, and adjusting the dispersion machine to 1500-1800r/min for dispersion for more than 25 min;
3) sampling and dripping two drops of wetting agent for spraying to observe whether the appearance of the coating film is shrinkage cavity or not, and after confirming that no shrinkage cavity exists, rotating the speed of the dispersion machine to 800-;
4) slowly adding wetting agent, film-forming assistant, water-based bactericidal mildew inhibitor, water-based leveling agent, water-based wax emulsion, water-based titanium white slurry and water-based polyurethane thickener (diluted by deionized water in the formula), stirring for 30min, and filtering with a 300-mesh filter screen to obtain the component A finished product after the inspection is qualified.
The preparation method of the component B comprises the following steps: taking a dry and anhydrous container, sequentially adding hydrophilic aliphatic polyisocyanate based on Hexamethylene Diisocyanate (HDI), propylene glycol monomethyl ether acetate and a water removing agent, mixing and stirring uniformly, and subpackaging into a closed iron can.
When in use, the A, B components are uniformly mixed according to a proportion to prepare the aqueous two-component white elastic wood finish.
Example 3
Preparing aqueous double-component white elastic wood finish according to the following proportion;
the component A comprises:
the component B comprises:
80% of hydrophilic aliphatic polyisocyanate of Hexamethylene Diisocyanate (HDI)
Propylene glycol methyl ether acetate 19%
1 percent of water removing agent.
The water-based defoaming agent is prepared from the following components in percentage by mass of 1: TEGO902W and TEGO810 of 1; the mass ratio of the water-based leveling agent is 1: TEGO410 and BYK333 of 1; the water-based film-forming additive is prepared from the following components in percentage by mass of 1: 1 DPM and DPNB; the water-based sterilization mildew inhibitor is prepared from the following components in percentage by mass of 1: 1 BEK100L and BEK 560; the water-based polyurethane thickener comprises the following components in percentage by mass of 1: RM-2020 and RM-8W of 1. A. The weight ratio of the component B is 100: 15.
the preparation method comprises the following steps:
the preparation method of the component A comprises the following steps:
1) filtering the medium-high hydroxyl acrylic resin emulsion and the medium-high hydroxyl acrylic resin emulsion in the formula into a clean container by using a 300-mesh filter screen, and respectively adding the aqueous dispersant, the elastic powder and the matting powder in sequence; adjusting the dispersion machine to 800-;
2) when the fineness is less than or equal to 20um by the inspection of the sampling scraper, adding a water-based defoaming agent, and adjusting the dispersion machine to 1500-1800r/min for dispersion for more than 25 min;
3) sampling and dripping two drops of wetting agent for spraying to observe whether the appearance of the coating film is shrinkage cavity or not, and after confirming that no shrinkage cavity exists, rotating the speed of the dispersion machine to 800-;
4) slowly adding wetting agent, film-forming assistant, water-based bactericidal mildew inhibitor, water-based leveling agent, water-based wax emulsion, water-based titanium white slurry and water-based polyurethane thickener (diluted by deionized water in the formula), stirring for 30min, and filtering with a 300-mesh filter screen to obtain the component A finished product after the inspection is qualified.
The preparation method of the component B comprises the following steps: taking a dry and anhydrous container, sequentially adding hydrophilic aliphatic polyisocyanate based on Hexamethylene Diisocyanate (HDI), propylene glycol monomethyl ether acetate and a water removing agent, mixing and stirring uniformly, and subpackaging into a closed iron can.
When in use, the A, B components are uniformly mixed according to a proportion to prepare the aqueous two-component white elastic wood finish.
Performance testing
The performances of the paint film appearance, drying time, adhesive force, hardness, various chemical resistances and the like of the aqueous two-component white elastic wood finish in examples 1 to 3 and the commercial common emulsion white paint are detected. The test results are shown in the following table:
according to the test results, the following test results are obtained:
(1) compared with the common hydroxyl acrylic resin emulsion, the surface drying time of the high hydroxyl acrylic resin emulsion and the medium hydroxyl acrylic resin emulsion is shortened to be less than or equal to 30min, the actual drying time is shortened to be less than or equal to 48h, the surface drying time is shortened by more than 50 percent in the prior art, and the surface drying time is obviously superior to that of the prior art.
(2) According to the invention, by matching and using the high hydroxyl acrylic resin emulsion and the medium hydroxyl acrylic resin emulsion, the finish paint film is very compact and has high surface hardness after the reaction of hydrophilic aliphatic polyisocyanate of Hexamethylene Diisocyanate (HDI); therefore, the paint film is combined with solvent-based primers such as wood, UV primer, PU primer and the like more compactly, and has better adhesive force; the test paper has more excellent performances on various physicochemical properties such as water resistance, gasoline resistance, 10% NaOH resistance, 10% HCL resistance and the like.
(3) According to the invention, the elastic powder, the matting powder and various auxiliaries are selected, so that the surface paint film effect of the finish paint is obviously superior to that of the prior art.
The above-described embodiments are preferred embodiments of the present invention, but it should be understood that the application of the present invention is not limited to the above-described examples, and that modifications and variations can be made by those skilled in the art in light of the above description, and all such modifications and variations are intended to fall within the scope of the appended claims.
Claims (10)
1. The water-based double-component white elastic woodware finishing paint is characterized by comprising the following components in percentage by weight: component A and component B;
the component A comprises the following raw materials in percentage by weight:
the component B is as follows:
70-80% of hydrophilic aliphatic polyisocyanate of Hexamethylene Diisocyanate (HDI)
Propylene glycol methyl ether acetate 20-30%
0.5 to 2 percent of water removing agent.
2. The aqueous two-component white elastic wood finish paint according to claim 1, wherein the mass ratio of the component A to the component B is 100: (10-20).
3. The aqueous two-component white elastic wood finish according to claim 1,
the aqueous hydroxy acrylic resin emulsion comprises high-hydroxy acrylic resin and medium-hydroxy acrylic resin;
the hydroxyl content of the high-hydroxyl acrylic resin is 3-4%, and the solid content is 40-47%; the hydroxyl content of the medium hydroxyl acrylic resin is 2-2.5 percent, and the solid content is 38-45 percent;
the dosage of the high hydroxyl acrylic resin is 10-18 parts by weight; the dosage of the medium hydroxyl acrylic resin is 42-55 parts by weight.
4. The aqueous two-component white elastic wood finish according to claim 1, characterized in that: the aqueous defoamer includes one or more of TEGO902W, TEGO810, BYK 028.
5. The aqueous two-component white elastic wood finish according to claim 1, characterized in that: the aqueous leveling agent comprises one or more of TEGO410, TEGO450, BYK 333.
6. The aqueous two-component white elastic wood finish according to claim 1, characterized in that: the aqueous film forming aid comprises one or more of DPM, DPNB and propylene glycol.
7. The aqueous two-component white elastic wood finish according to claim 1, characterized in that: the water-based sterilization and mildew-proof agent comprises one or more of BEK100L and BEK 560.
8. The aqueous two-component white elastic wood finish according to claim 1, characterized in that: the aqueous polyurethane thickener comprises one or more of RM-2020 and RM-8W, TT 615.
9. The aqueous two-component white elastic wood finish according to claim 1, characterized in that: the water removing agent comprises one or more OF Additive Ti and Additive OF.
10. A method of preparing the aqueous two-component white elastic wood finish of any one of claims 1-9, comprising the steps of:
the preparation method of the component A comprises the following steps:
1) filtering the medium-high hydroxyl acrylic resin emulsion and the medium-high hydroxyl acrylic resin emulsion in the formula into a clean container by using a 300-mesh filter screen, and respectively adding the aqueous dispersant, the elastic powder and the matting powder in sequence; adjusting the dispersion machine to 800-;
2) when the fineness is less than or equal to 20um by the inspection of the sampling scraper, adding a water-based defoaming agent, and adjusting the dispersion machine to 1500-1800r/min for dispersion for more than 25 min;
3) sampling and dripping two drops of wetting agent for spraying to observe whether the appearance of the coating film is shrinkage cavity or not, and after confirming that no shrinkage cavity exists, rotating the speed of the dispersion machine to 800-;
4) slowly adding wetting agent, film-forming assistant, water-based bactericidal mildew inhibitor, water-based leveling agent, water-based wax emulsion, water-based titanium white slurry and water-based polyurethane thickener (diluted by deionized water in the formula), stirring for 30min, and filtering by using a 300-mesh filter screen to obtain a component A finished product after the inspection is qualified;
the preparation method of the component B comprises the following steps: taking a dry and anhydrous container, sequentially adding hydrophilic aliphatic polyisocyanate based on Hexamethylene Diisocyanate (HDI), propylene glycol monomethyl ether acetate and a water removing agent, mixing and stirring uniformly, and subpackaging into a closed iron can.
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Application publication date: 20201016 |