CN112480800A - Anti-fading coating for technical wood - Google Patents
Anti-fading coating for technical wood Download PDFInfo
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- CN112480800A CN112480800A CN202011381570.1A CN202011381570A CN112480800A CN 112480800 A CN112480800 A CN 112480800A CN 202011381570 A CN202011381570 A CN 202011381570A CN 112480800 A CN112480800 A CN 112480800A
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- 239000002023 wood Substances 0.000 title claims abstract description 94
- 238000000576 coating method Methods 0.000 title claims abstract description 43
- 239000011248 coating agent Substances 0.000 title claims abstract description 40
- 238000005562 fading Methods 0.000 title claims abstract description 16
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 93
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 39
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 33
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 33
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 33
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 29
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 17
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 16
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 16
- 239000000839 emulsion Substances 0.000 claims abstract description 16
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 16
- 239000000853 adhesive Substances 0.000 claims abstract description 15
- 230000001070 adhesive effect Effects 0.000 claims abstract description 15
- 230000002745 absorbent Effects 0.000 claims abstract description 13
- 239000002250 absorbent Substances 0.000 claims abstract description 13
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229960001047 methyl salicylate Drugs 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 6
- 239000000243 solution Substances 0.000 claims description 119
- 238000003756 stirring Methods 0.000 claims description 97
- 239000000203 mixture Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 23
- 239000000843 powder Substances 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 230000010355 oscillation Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000007873 sieving Methods 0.000 claims description 5
- 239000000454 talc Substances 0.000 claims description 5
- 229910052623 talc Inorganic materials 0.000 claims description 5
- 235000012222 talc Nutrition 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 4
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 2
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical group CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 229960001124 trientine Drugs 0.000 claims description 2
- 238000002845 discoloration Methods 0.000 abstract description 10
- 238000004383 yellowing Methods 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 230000004888 barrier function Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 30
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 description 4
- 239000001263 FEMA 3042 Substances 0.000 description 4
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 description 4
- 229940033123 tannic acid Drugs 0.000 description 4
- 235000015523 tannic acid Nutrition 0.000 description 4
- 229920002258 tannic acid Polymers 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000004611 light stabiliser Substances 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant 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
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- 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
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- 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
Abstract
The invention discloses a technical wood anti-fading coating which comprises the following raw materials in parts by weight: aliphatic polyurethane resin: 100 and 130 parts; 2-6 parts of ultraviolet absorbent; aldehyde-free fixing agent: 10-25 parts; hexamethylphosphoric triamide: 4-8 parts; potassium hydroxide: 4-8 parts; acrylic emulsion: 20-30 parts of a solvent; methyl salicylate: 2-6 parts; magnesium hydroxide: 2-6 parts; adhesive: 10-25 parts; talc powder: 10-30 parts; an anti-aging agent: 15-30 parts; defoaming agent: 20-30 parts of a solvent; the balance being water. The invention enhances the weather resistance of the technical wood veneer, obviously improves the sun resistance of the dyed wood, protects the technical wood veneer from yellowing and discoloration, simultaneously uses the nanoscale talcum powder to fill the molecular gap of the coating, realizes the powerful oxygen barrier function, and solves the problems of discoloration and discoloration caused by the damage of the color system of the dyed wood under the irradiation of sunlight ultraviolet rays.
Description
Technical Field
The invention relates to the technical field of chemical products, in particular to a technical wood anti-fading coating.
Background
The technical wood is a full-wood novel decorative material with more excellent performance, which is produced by taking common wood (fast-growing wood) as a raw material and carrying out various modification physical and chemical treatments on the common wood and the fast-growing wood by utilizing the principle of bionics, compared with natural wood, the technical wood is hardly bent, does not crack or distort, has artificially controlled density and good stability, does not have waste and value loss in the processing process of natural wood processing, can improve the comprehensive utilization rate of the wood to over 86 percent, and is a composite product which is artificially synthesized instead of solid wood.
Because of the influence of natural environment, under the irradiation of sunlight and ultraviolet rays, a color system of the dyed wood is damaged, so that the dyed wood fades, changes color and the like, and the dye used by the technical wood veneer is very sensitive to ultraviolet rays and obviously fades, thereby influencing the decorative aesthetic property of the technical wood.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a technical wood anti-fading coating, which solves the problems of anti-fading and color change of the technical wood.
The invention mainly aims to provide a technical wood anti-fading coating, which comprises the following raw materials in parts by weight: aliphatic polyurethane resin: 100 and 130 parts; 2-6 parts of ultraviolet absorbent; aldehyde-free fixing agent: 10-25 parts; hexamethylphosphoric triamide: 4-8 parts; potassium hydroxide: 4-8 parts; acrylic emulsion: 20-30 parts of a solvent; methyl salicylate: 2-6 parts; magnesium hydroxide: 2-6 parts; adhesive: 10-25 parts; talc powder: 10-30 parts; an anti-aging agent: 15-30 parts; defoaming agent: 20-30 parts of a solvent; the balance of water;
the technical wood anti-fading coating comprises the following steps:
the method comprises the following steps: placing the formaldehyde-free color fixing agent in a sealed container A according to parts by weight, and preserving heat by using a solution bottle A, wherein warm water is placed in the solution bottle A for subsequent use;
step two; according to the parts by weight, respectively grinding and crushing the talcum powder, the potassium hydroxide and the magnesium hydroxide, wherein the sizes are respectively 500-600 meshes, sieving the talcum powder, the potassium hydroxide and the magnesium hydroxide once by a sieve, and then respectively placing the talcum powder, the potassium hydroxide and the magnesium hydroxide in a sealed container B, a sealed container C and a sealed container D;
step three: sequentially pouring potassium hydroxide and magnesium hydroxide into a reaction bottle A according to the parts by weight, and then stirring the mixture at the stirring speed of 50-70rpm for 15-20min to obtain powder A;
step four: stirring the acrylic emulsion according to the parts by weight, wherein the stirring speed is 100-150rpm, and the stirring time is 5 min;
step five: sequentially pouring the aliphatic polyurethane resin and the formaldehyde-free color fixing agent into a reaction bottle B according to the parts by weight, stirring at room temperature at the stirring speed of 150-;
step six: sequentially pouring hexamethylphosphoric triamide and methyl salicylate into a solution bottle B according to parts by weight, placing the solution bottle B in an ultrasonic oscillator for ultrasonic oscillation for 45min to obtain a solution C, pouring an ultraviolet absorbent into the solution C, and stirring for 30min at the stirring speed of 200-300rpm to obtain a solution D;
step seven: sequentially pouring the solution B and the solution D into a solution bottle C according to the parts by weight, placing the solution bottle C in an ultrasonic oscillator for ultrasonic oscillation for 50min to obtain a solution E, adding talc into the powder solution E, and then stirring and mixing at the stirring speed of 200-300rpm for 20-30min to obtain a solution F;
step eight: according to the weight parts, sequentially pouring the powder A and trace residual water into the solution F, adding the powder A and trace residual water into the solution F, and stirring the mixture at the stirring speed of 200-300rpm for 30min to obtain a solution G, adding the anti-aging agent into the solution G, and stirring the mixture to obtain a solution H at the stirring speed of 200-300rpm for 20 min;
step nine: according to the parts by weight, the adhesive and the defoaming powder are poured into the solution H in sequence for stirring, the stirring speed is 200-300rpm, and the stirring time is 30 min;
step ten: and (3) placing the stirred solution H in an ultrasonic oscillator for ultrasonic oscillation according to the parts by weight to obtain the coating, wherein the placing time is 60 min.
Preferably, the weight of the raw materials is as follows: aliphatic polyurethane resin: 120 parts of (A); 4 parts of ultraviolet absorber; aldehyde-free fixing agent: 20 parts of (1); hexamethylphosphoric triamide: 5 parts of a mixture; potassium hydroxide: 5 parts of a mixture; acrylic emulsion: 25 parts of (1); methyl salicylate: 4 parts of a mixture; magnesium hydroxide: 4 parts of a mixture; adhesive: 20 parts of (1); talc powder: 20 parts of (1); an anti-aging agent: 25 parts of (1); defoaming agent: 25 parts of (1); the balance being water.
Preferably, the formaldehyde-free color fixing agent is prepared by adding diethylenetriamine or triethylene tetramine aqueous solution into a reaction kettle, heating and stirring, and dripping epichlorohydrin.
Preferably, the ultraviolet absorbent is an ultraviolet absorbent UV-P, and the anti-aging agent is an anti-aging agent 264.
Preferably, the warm water in the first step is 50 ℃, and the material of the solution bottle a in the first step is copper.
Preferably, the material of the sealed container in the second step and the material of the reaction bottle in the third step and the material of the reaction bottle in the fifth step are both glass materials, and the material of the solution bottle in the sixth step and the material of the solution bottle in the seventh step are both glass materials.
(1) The ultraviolet absorbent, the color fixing agent and the light stabilizer are added, so that direct damage of ultraviolet rays to the technical wood is effectively blocked, the weather resistance of the technical wood veneer is enhanced, the sunlight resistance of the dyed wood is obviously improved, the technical wood veneer is protected from yellowing and discoloration, meanwhile, the nano-scale talcum powder is used for filling the molecular gap of the coating, a strong oxygen blocking function is realized, the generation of oxidative discoloration of the dye is slowed down, the neutralizer and the inhibitor are easy to permeate the wood, can quickly react with tannic acid to form a film, a water-insoluble film forming compound is formed, the tannic acid and the bleaching agent are effectively blocked, the aliphatic polyurethane resin is used, the coating has excellent physical properties, excellent cold cracking resistance, yellowing resistance and bending resistance, the coating is completely close to the natural color of the base material, the migration hue is small, the weather resistance and aging resistance of the coating are good, and under the irradiation of solar ultraviolet rays, the color system of the dyed wood is damaged, so that the problems of color fading, color change and the like can be caused, and the decorative aesthetic property of the technical wood can be improved.
(2) The use of magnesium hydroxide can achieve the purpose of flame retardancy, prevent the fire retardancy of wood, thereby reducing the possibility of fire, improving the safety of users, and the adhesive can increase the middle polymer of the coating, the fish polymer and the adhesion between the coating and the wood, thereby not affecting the usability of the wood.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the utility model provides a technical wood coating that fades that prevents which characterized in that: the material comprises the following raw materials in parts by weight: aliphatic polyurethane resin: 100 parts of (A); 2 parts of ultraviolet absorbent; aldehyde-free fixing agent: 10 parts of (A); hexamethylphosphoric triamide: 4 parts of a mixture; potassium hydroxide: 4 parts of a mixture; acrylic emulsion: 20 parts of (1); methyl salicylate: 2 parts of (1); magnesium hydroxide: 2 parts of (1); adhesive: 10 parts of (A); talc powder: 10 parts of (A); an anti-aging agent: 15 parts of (1); defoaming agent: 20 parts of (1); the balance being water.
The technical wood anti-fading coating comprises the following steps:
the method comprises the following steps: placing the formaldehyde-free color fixing agent in a sealed container A according to parts by weight, and preserving heat by using a solution bottle A, wherein warm water is placed in the solution bottle A for subsequent use;
step two; grinding and crushing the talcum powder, the potassium hydroxide and the magnesium hydroxide respectively according to the parts by weight, wherein the sizes of the talcum powder, the potassium hydroxide and the magnesium hydroxide are respectively 500 meshes, sieving the talcum powder, the potassium hydroxide and the magnesium hydroxide once by a sieve, and then respectively placing the talcum powder, the potassium hydroxide and the magnesium hydroxide in a sealed container B, a sealed container C and a sealed container D;
step three: sequentially pouring potassium hydroxide and magnesium hydroxide into a reaction bottle A according to the parts by weight, and then stirring the mixture at the stirring speed of 50rpm for 15min to obtain powder A;
step four: stirring the acrylic emulsion according to the parts by weight, wherein the stirring speed is 100rpm, and the stirring time is 5 min;
step five: pouring the aliphatic polyurethane resin and the formaldehyde-free color fixing agent into a reaction bottle B in sequence according to parts by weight, stirring at room temperature at the stirring speed of 150rpm for 15min to obtain a solution A, adding the acrylic emulsion into the solution A, and stirring at the stirring speed of 150rpm for 30min to obtain a solution B;
step six: sequentially pouring hexamethylphosphoric triamide and methyl salicylate into a solution bottle B according to parts by weight, placing the solution bottle B in an ultrasonic oscillator for ultrasonic oscillation for 45min to obtain a solution C, pouring an ultraviolet absorbent into the solution C, and stirring for 30min at a stirring speed of 200rpm to obtain a solution D;
step seven: sequentially pouring the solution B and the solution D into a solution bottle C according to the parts by weight, placing the solution bottle C in an ultrasonic oscillator for ultrasonic oscillation for 50min to obtain a solution E, adding talc into the powder solution E, and then stirring and mixing at a stirring speed of 200rpm for 20min to obtain a solution F;
step eight: according to the weight parts, pouring the powder A and trace residual water into the solution F in sequence, adding and stirring at the stirring speed of 200rpm for 30min to obtain a solution G, adding the anti-aging agent into the solution G and stirring to obtain a solution H, wherein the stirring speed is 200rpm, and the stirring time is 20 min;
step nine: sequentially pouring the adhesive and the defoaming powder into the solution H according to the parts by weight, and stirring at the stirring speed of 200rpm for 30 min;
step ten: and (3) placing the stirred solution H in an ultrasonic oscillator for ultrasonic oscillation according to the parts by weight to obtain the coating, wherein the placing time is 60 min.
Example two:
the utility model provides a technical wood coating that fades that prevents which characterized in that: the material comprises the following raw materials in parts by weight: aliphatic polyurethane resin: 120 parts of (A); 4 parts of ultraviolet absorber; aldehyde-free fixing agent: 20 parts of (1); hexamethylphosphoric triamide: 6 parts of (1); potassium hydroxide: 6 parts of (1); acrylic emulsion: 25 parts of (1); methyl salicylate: 4 parts of a mixture; magnesium hydroxide: 4 parts of a mixture; adhesive: 20 parts of (1); talc powder: 20 parts of (1); an anti-aging agent: 23 parts; defoaming agent: 25 parts of (1); the balance being water.
The technical wood anti-fading coating comprises the following steps:
the method comprises the following steps: placing the formaldehyde-free color fixing agent in a sealed container A according to parts by weight, and preserving heat by using a solution bottle A, wherein warm water is placed in the solution bottle A for subsequent use;
step two; grinding and crushing the talcum powder, the potassium hydroxide and the magnesium hydroxide respectively according to the parts by weight, wherein the sizes of the talcum powder, the potassium hydroxide and the magnesium hydroxide are 550 meshes respectively, sieving the talcum powder, the potassium hydroxide and the magnesium hydroxide once by a sieve, and then placing the talcum powder, the potassium hydroxide and the magnesium hydroxide in a sealed container B, a sealed container C and a sealed container D respectively;
step three: sequentially pouring potassium hydroxide and magnesium hydroxide into a reaction bottle A according to the parts by weight, and then stirring the mixture at the stirring speed of 60rpm for 20min to obtain powder A;
step four: stirring the acrylic emulsion according to the parts by weight, wherein the stirring speed is 125rpm, and the stirring time is 5 min;
step five: pouring the aliphatic polyurethane resin and the formaldehyde-free color fixing agent into a reaction bottle B in sequence according to parts by weight, stirring at room temperature at the stirring speed of 180rpm for 20min to obtain a solution A, adding the acrylic emulsion into the solution A, and stirring to obtain a solution B at the stirring speed of 180rpm for 30 min;
step six: sequentially pouring hexamethylphosphoric triamide and methyl salicylate into a solution bottle B according to parts by weight, placing the solution bottle B in an ultrasonic oscillator for ultrasonic oscillation for 45min to obtain a solution C, pouring an ultraviolet absorbent into the solution C, and stirring for 30min at a stirring speed of 250rpm to obtain a solution D;
step seven: sequentially pouring the solution B and the solution D into a solution bottle C according to the parts by weight, placing the solution bottle C in an ultrasonic oscillator for ultrasonic oscillation for 50min to obtain a solution E, adding talc into the powder solution E, and then stirring and mixing at a stirring speed of 250rpm for 25min to obtain a solution F;
step eight: according to the weight parts, sequentially pouring the powder A and trace residual water into the solution F, adding the powder A and trace residual water into the solution F, stirring the mixture for 30min at a stirring speed of 250rpm to obtain a solution G, adding the anti-aging agent into the solution G, and stirring the mixture for 20min at a stirring speed of 250rpm to obtain a solution H;
step nine: sequentially pouring the adhesive and the defoaming powder into the solution H according to the parts by weight, and stirring at the stirring speed of 250rpm for 30 min;
step ten: and (3) placing the stirred solution H in an ultrasonic oscillator for ultrasonic oscillation according to the parts by weight to obtain the coating, wherein the placing time is 60 min.
Example three:
the utility model provides a technical wood coating that fades that prevents which characterized in that: the material comprises the following raw materials in parts by weight: aliphatic polyurethane resin: 130 parts of (1); 6 parts of ultraviolet absorber; aldehyde-free fixing agent: 25 parts of (1); hexamethylphosphoric triamide: 8 parts of a mixture; potassium hydroxide: 8 parts of a mixture; acrylic emulsion: 30 parts of (1); methyl salicylate: 6 parts of (1); magnesium hydroxide: 6 parts of (1); adhesive: 25 parts of (1); talc powder: 30 parts of (1); an anti-aging agent: 30 parts of (1); defoaming agent: 30 parts of (1); the balance being water.
The technical wood anti-fading coating comprises the following steps:
the method comprises the following steps: placing the formaldehyde-free color fixing agent in a sealed container A according to parts by weight, and preserving heat by using a solution bottle A, wherein warm water is placed in the solution bottle A for subsequent use;
step two; grinding and crushing the talcum powder, the potassium hydroxide and the magnesium hydroxide respectively according to the parts by weight, wherein the sizes of the talcum powder, the potassium hydroxide and the magnesium hydroxide are respectively 600 meshes, sieving the talcum powder, the potassium hydroxide and the magnesium hydroxide once by a sieve, and then respectively placing the talcum powder, the potassium hydroxide and the magnesium hydroxide in a sealed container B, a sealed container C and a sealed container D;
step three: sequentially pouring potassium hydroxide and magnesium hydroxide into a reaction bottle A according to the parts by weight, and then stirring the mixture at the stirring speed of 70rpm for 20min to obtain powder A;
step four: stirring the acrylic emulsion according to the parts by weight, wherein the stirring speed is 150rpm, and the stirring time is 5 min;
step five: pouring the aliphatic polyurethane resin and the formaldehyde-free color fixing agent into a reaction bottle B in sequence according to parts by weight, stirring at room temperature at the stirring speed of 200rpm for 20min to obtain a solution A, adding the acrylic emulsion into the solution A, and stirring to obtain a solution B at the stirring speed of 200rpm for 30 min;
step six: sequentially pouring hexamethylphosphoric triamide and methyl salicylate into a solution bottle B according to parts by weight, placing the solution bottle B in an ultrasonic oscillator for ultrasonic oscillation for 45min to obtain a solution C, pouring an ultraviolet absorbent into the solution C, and stirring for 30min at a stirring speed of 300rpm to obtain a solution D;
step seven: sequentially pouring the solution B and the solution D into a solution bottle C according to the parts by weight, placing the solution bottle C in an ultrasonic oscillator for ultrasonic oscillation for 50min to obtain a solution E, adding talc into the powder solution E, and then stirring and mixing at the stirring speed of 300rpm for 30min to obtain a solution F;
step eight: according to the weight parts, pouring the powder A and trace residual water into the solution F in sequence, adding and stirring at the stirring speed of 300rpm for 30min to obtain a solution G, adding the anti-aging agent into the solution G and stirring to obtain a solution H, wherein the stirring speed is 300rpm, and the stirring time is 20 min;
step nine: sequentially pouring the adhesive and the defoaming powder into the solution H according to the parts by weight, and stirring at the stirring speed of 300rpm for 30 min;
step ten: and (3) placing the stirred solution H in an ultrasonic oscillator for ultrasonic oscillation according to the parts by weight to obtain the coating, wherein the placing time is 60 min.
The experiment is as follows:
the coating in the first embodiment, the second embodiment and the third embodiment is respectively and uniformly coated on the first-technology wood board, the second-technology wood board and the third-technology wood board, after the first-technology wood board, the second-technology wood board, the third-technology wood board and the fourth-technology wood board coated with the common coating are respectively placed in a solar simulated irradiation test box after the first-technology wood board, the second-technology wood board, the third-technology wood board and the fourth-technology wood board are air-dried, the temperature is set at 50 ℃, after irradiation tests for 6h, 12h, 24h and 36h, the fading change phenomena of each group are respectively observed, and the fading grades are divided into four grades of no, light, medium and.
| 6h | 12h | 24h | 36h | |
| First-tech wood board | Is free of | Light and lightweight | In | In |
| Second science and technology plank | Is free of | Is free of | Light and lightweight | In |
| Third-tech wood board | Is free of | Is free of | Is free of | Light and lightweight |
| Fourth-tech wood board | Is free of | Light and lightweight | In | Heavy load |
And (4) conclusion: as can be seen from the above table, the discoloration changes of the first-technology wood board, the second-technology wood board, and the third-technology wood board coated with the first embodiment, the second embodiment, and the third embodiment are not obvious as the irradiation time increases, and the discoloration changes of the fourth-technology wood board coated with the common paint are obvious as the irradiation time increases, so that the paint prepared in the third embodiment has better discoloration resistance.
Experiment two:
the first-technology wood board, the second-technology wood board and the third-technology wood board are respectively and uniformly coated with the coatings in the first embodiment, the second-technology wood board and the third-technology wood board, after the first-technology wood board, the second-technology wood board, the third-technology wood board and the fourth-technology wood board coated with the common coatings are respectively and vertically fired for 5min, 15min, 30min and 45min, whether each group can catch fire is respectively observed, and the fire grades are classified into four grades of no, small, medium and large.
| 5min | 15min | 30min | 45min | |
| First-tech wood board | Is free of | Small | In | Big (a) |
| Second science and technology plank | Is free of | Small | Small | In |
| Third-tech wood board | Is free of | Is free of | Small | Small |
| Fourth-tech wood board | Small | In | In | In |
And (4) conclusion: as can be seen from the above table, the first-technology wood boards, the second-technology wood boards, and the third-technology wood boards coated with the first, second, and third examples all ignited slightly and later with time, while the fourth-technology wood boards coated with the conventional coating ignited maximally at the earliest time, and the third example exhibited the least flame retardancy, so that the coatings prepared in the third example exhibited the better flame retardancy.
The invention has the beneficial effects that: the ultraviolet absorbent, the color fixing agent and the light stabilizer are added, so that direct damage of ultraviolet rays to the technical wood is effectively blocked, the weather resistance of the technical wood veneer is enhanced, the sunlight resistance of the dyed wood is obviously improved, the technical wood veneer is protected from yellowing and discoloration, meanwhile, the nano-scale talcum powder is used for filling the molecular gap of the coating, a strong oxygen blocking function is realized, the generation of oxidative discoloration of the dye is slowed down, the neutralizer and the inhibitor are easy to permeate the wood, can quickly react with tannic acid to form a film, a water-insoluble film forming compound is formed, the tannic acid and the bleaching agent are effectively blocked, the aliphatic polyurethane resin is used, the aliphatic polyurethane resin has excellent physical properties, excellent cold cracking resistance, yellowing resistance and bending resistance, the coating is completely close to the natural color of the base material, the migration hue is small, the weather resistance and aging resistance of the coating are good, and the problem that the chromogen system of the dyed wood is damaged under the irradiation of solar, the problems of color fading, color change and the like can be caused, so that the decorative aesthetic property of the technical wood can be improved, the aim of flame retardance can be fulfilled by adding the magnesium hydroxide, the wood is prevented from being difficult to burn, the possibility of fire is reduced, the safety of a user is improved, and meanwhile, the middle polymer fish polymer of the coating and the adhesion between the coating and the wood can be increased by the adhesive, so that the use property of the wood is not influenced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a technical wood coating that fades that prevents which characterized in that: the material comprises the following raw materials in parts by weight: aliphatic polyurethane resin: 100 and 130 parts; 2-6 parts of ultraviolet absorbent; aldehyde-free fixing agent: 10-25 parts; hexamethylphosphoric triamide: 4-8 parts; potassium hydroxide: 4-8 parts; acrylic emulsion: 20-30 parts of a solvent; methyl salicylate: 2-6 parts; magnesium hydroxide: 2-6 parts; adhesive: 10-25 parts; talc powder: 10-30 parts; an anti-aging agent: 15-30 parts; defoaming agent: 20-30 parts of a solvent; the balance of water;
the technical wood anti-fading coating comprises the following steps:
the method comprises the following steps: placing the formaldehyde-free color fixing agent in a sealed container A according to parts by weight, and preserving heat by using a solution bottle A, wherein warm water is placed in the solution bottle A for subsequent use;
step two; according to the parts by weight, respectively grinding and crushing the talcum powder, the potassium hydroxide and the magnesium hydroxide, wherein the sizes are respectively 500-600 meshes, sieving the talcum powder, the potassium hydroxide and the magnesium hydroxide once by a sieve, and then respectively placing the talcum powder, the potassium hydroxide and the magnesium hydroxide in a sealed container B, a sealed container C and a sealed container D;
step three: sequentially pouring potassium hydroxide and magnesium hydroxide into a reaction bottle A according to the parts by weight, and then stirring the mixture at the stirring speed of 50-70rpm for 15-20min to obtain powder A;
step four: stirring the acrylic emulsion according to the parts by weight, wherein the stirring speed is 100-150rpm, and the stirring time is 5 min;
step five: sequentially pouring the aliphatic polyurethane resin and the formaldehyde-free color fixing agent into a reaction bottle B according to the parts by weight, stirring at room temperature at the stirring speed of 150-;
step six: sequentially pouring hexamethylphosphoric triamide and methyl salicylate into a solution bottle B according to parts by weight, placing the solution bottle B in an ultrasonic oscillator for ultrasonic oscillation for 45min to obtain a solution C, pouring an ultraviolet absorbent into the solution C, and stirring for 30min at the stirring speed of 200-300rpm to obtain a solution D;
step seven: sequentially pouring the solution B and the solution D into a solution bottle C according to the parts by weight, placing the solution bottle C in an ultrasonic oscillator for ultrasonic oscillation for 50min to obtain a solution E, adding talc into the powder solution E, and then stirring and mixing at the stirring speed of 200-300rpm for 20-30min to obtain a solution F;
step eight: according to the weight parts, sequentially pouring the powder A and trace residual water into the solution F, adding the powder A and trace residual water into the solution F, and stirring the mixture at the stirring speed of 200-300rpm for 30min to obtain a solution G, adding the anti-aging agent into the solution G, and stirring the mixture to obtain a solution H at the stirring speed of 200-300rpm for 20 min;
step nine: according to the parts by weight, the adhesive and the defoaming powder are poured into the solution H in sequence for stirring, the stirring speed is 200-300rpm, and the stirring time is 30 min;
step ten: and (3) placing the stirred solution H in an ultrasonic oscillator for ultrasonic oscillation according to the parts by weight to obtain the coating, wherein the placing time is 60 min.
2. The technical wood discoloration-preventing coating according to claim 1, wherein the raw material weight is preferably: aliphatic polyurethane resin: 120 parts of (A); 4 parts of ultraviolet absorber; aldehyde-free fixing agent: 20 parts of (1); hexamethylphosphoric triamide: 5 parts of a mixture; potassium hydroxide: 5 parts of a mixture; acrylic emulsion: 25 parts of (1); methyl salicylate: 4 parts of a mixture; magnesium hydroxide: 4 parts of a mixture; adhesive: 20 parts of (1); talc powder: 20 parts of (1); an anti-aging agent: 25 parts of (1); defoaming agent: 25 parts of (1); the balance being water.
3. The technical wood discoloration-preventing coating according to claim 1, wherein: the formaldehyde-free color fixing agent is prepared by adding diethylenetriamine or triethylene tetramine aqueous solution into a reaction kettle, heating and stirring, and dripping epichlorohydrin.
4. The technical wood discoloration-preventing coating according to claim 1, wherein: the ultraviolet absorbent is ultraviolet absorbent UV-P, and the anti-aging agent is anti-aging agent 264.
5. The technical wood discoloration-preventing coating according to claim 1, wherein: the warm water in the first step is 50 ℃, and the material of the solution bottle A in the first step is copper.
6. The technical wood discoloration-preventing coating according to claim 1, wherein: the material of the sealed container in the second step and the material of the reaction bottle in the third step and the material of the reaction bottle in the fifth step are both glass materials, and the material of the solution bottle in the sixth step and the material of the solution bottle in the seventh step are both glass materials.
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| CN202011381570.1A CN112480800A (en) | 2020-12-01 | 2020-12-01 | Anti-fading coating for technical wood |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011381570.1A CN112480800A (en) | 2020-12-01 | 2020-12-01 | Anti-fading coating for technical wood |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114958122A (en) * | 2022-07-19 | 2022-08-30 | 江苏海田技术有限公司 | Water-based technical wood yellow-resistant matte clear finish and preparation method thereof |
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