CN114395306A - Water-based UV (ultraviolet) photocuring woodware coating, photocuring method and application - Google Patents
Water-based UV (ultraviolet) photocuring woodware coating, photocuring method and application Download PDFInfo
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- CN114395306A CN114395306A CN202210064094.3A CN202210064094A CN114395306A CN 114395306 A CN114395306 A CN 114395306A CN 202210064094 A CN202210064094 A CN 202210064094A CN 114395306 A CN114395306 A CN 114395306A
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- 238000000576 coating method Methods 0.000 title claims abstract description 65
- 239000011248 coating agent Substances 0.000 title claims abstract description 64
- 238000000016 photochemical curing Methods 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 36
- -1 4-methylthiophenyl Chemical group 0.000 claims abstract description 31
- 238000001723 curing Methods 0.000 claims abstract description 30
- 239000000178 monomer Substances 0.000 claims abstract description 26
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 20
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 20
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Substances CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 17
- 239000002270 dispersing agent Substances 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 17
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 claims abstract description 10
- 239000004593 Epoxy Substances 0.000 claims abstract description 10
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000012965 benzophenone Substances 0.000 claims abstract description 10
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 claims abstract description 10
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920002635 polyurethane Polymers 0.000 claims abstract description 10
- 239000004814 polyurethane Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000003999 initiator Substances 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000002023 wood Substances 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 239000003973 paint Substances 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims 1
- 230000007797 corrosion Effects 0.000 claims 1
- DWHOIYXAMUMQTI-UHFFFAOYSA-L disodium;2-[(1-sulfonatonaphthalen-2-yl)methyl]naphthalene-1-sulfonate Chemical group [Na+].[Na+].C1=CC2=CC=CC=C2C(S(=O)(=O)[O-])=C1CC1=CC=C(C=CC=C2)C2=C1S([O-])(=O)=O DWHOIYXAMUMQTI-UHFFFAOYSA-L 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- LCRMGUFGEDUSOG-UHFFFAOYSA-N naphthalen-1-ylsulfonyloxymethyl naphthalene-1-sulfonate;sodium Chemical group [Na].C1=CC=C2C(S(=O)(OCOS(=O)(=O)C=3C4=CC=CC=C4C=CC=3)=O)=CC=CC2=C1 LCRMGUFGEDUSOG-UHFFFAOYSA-N 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000007547 defect Effects 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
- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/08—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive 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
- C09D7/65—Additives macromolecular
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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)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a water-based UV (ultraviolet) photocuring woodenware coating, a photocuring method and application, belonging to the technical field of photocuring, and the water-based UV photocuring woodenware coating comprises the following raw materials: polyurethane acrylic resin, epoxy acrylic resin, difunctional active monomer, photoinitiator, matte powder, flatting agent, defoaming agent, dispersing agent and hand feeling agent; wherein the photoinitiator comprises 2-methyl stem-1- (4-methylthiophenyl) -2-morpholine-1-acetone, 2-hydroxy-2-methyl-1-phenyl-1-acetone, 1-hydroxy-cyclohexyl-phenyl ketone, 2, 4, 6-trimethylbenzoyl-diphenyl phosphorus oxide and benzophenone; the invention uses UVC low-waveband light waves to be combined with the coating, the surface curing effect is outstanding, the energy consumption in the curing process is reduced by 80 parts compared with the prior art, and the temperature is kept at about normal temperature; the problems that the common ultraviolet curing technology in the market has high energy consumption, high temperature and unsatisfactory surface curing effect are solved.
Description
Technical Field
The invention relates to the technical field of photocuring, in particular to a water-based UV photocuring woodenware coating, a photocuring method and application.
Background
At present, the common ultraviolet curing technology in the market uses light waves with UVA or UVB high wave bands. The light wave has high energy consumption and high temperature, which can not be applied in some industries, or needs to be additionally added with cooling equipment in the equipment, thereby increasing the cost. And the light wave in the wave band is mainly used for deep curing, so that the surface curing effect is not ideal.
The invention uses light wave of UVC low waveband, which is combined with matched paint to achieve curing effect and outstanding surface curing effect. Compared with the prior art, the energy consumption in the curing process is reduced by 80 parts, and the temperature is kept at about normal temperature.
Disclosure of Invention
The invention provides a water-based UV (ultraviolet) photocuring woodenware coating, a photocuring method and application, aiming at overcoming the defects of the common ultraviolet curing technology in the existing market.
In order to solve the technical problems, the following technical scheme is adopted:
the water-based UV (ultraviolet) photocuring woodenware coating comprises the following raw materials in parts by weight:
37-40 parts of polyurethane acrylic resin, 18-21 parts of epoxy acrylic resin, 20-22.5 parts of difunctional active monomer, 10-12 parts of photoinitiator, 4.5-5 parts of matte powder, 1-1.5 parts of flatting agent, 0.5-0.7 part of defoaming agent, 1.5-2 parts of dispersing agent and 0.6-1 part of hand feeling agent;
wherein the photoinitiator comprises 2-methyl stem-1- (4-methylthiophenyl) -2-morpholine-1-acetone, 2-hydroxy-2-methyl-1-phenyl-1-acetone, 1-hydroxy-cyclohexyl-phenyl ketone, 2, 4, 6-trimethylbenzoyl-diphenyl phosphorus oxide and benzophenone.
As a further scheme of the invention: 40 parts of polyurethane acrylic resin, 20 parts of epoxy acrylic resin, 20 parts of difunctional active monomer, 10 parts of photoinitiator, 5 parts of matte powder, 1.5 parts of flatting agent, 0.5 part of defoaming agent, 2 parts of dispersing agent and 1 part of hand feeling agent.
As a further scheme of the invention: in the photoinitiator, the mass ratio of 2-methyl stem-1- (4-methylthiophenyl) -2-morpholine-1-acetone, 2-hydroxy-2-methyl-1-phenyl-1-acetone, 1-hydroxy-cyclohexyl-phenyl ketone, 2, 4, 6-trimethylbenzoyl-diphenyl phosphorus oxide and benzophenone is 1-3: 1-3: 1-3: 1-3: 2.
as a further scheme of the invention: the difunctional reactive monomer is acrylic acid-2-glycolic acid.
As a further scheme of the invention: the leveling agent is one of polysiloxane and acrylate.
As a further scheme of the invention: the defoaming agent is polydimethylsiloxane, the dispersing agent is sodium methylene dinaphthalene sulfonate, and the hand feeling agent is polyethylene wax powder.
The photocuring method of the water-based UV photocuring woodenware coating comprises the following steps:
preparing water-based UV (ultraviolet) photocuring woodware paint according to a proportion;
the prepared water-based UV light-cured woodware coating is coated on the surface of a base material in a roll mode, the coating amount of each square wood is 40-120 g, when the conveying speed is 6-15 m/min, an initiator is prompted to be instantly cracked under the irradiation of cold light UVC ultraviolet rays, radicals are generated to initiate unsaturated vinyl bonds of resin and monomers in the coating to be polymerized into a film, and the curing and drying are completely and thoroughly.
As a further scheme of the invention: the UVC ultraviolet light is light wave of UVC low wave band, and the specific wave band of the light wave is 185-254 nm.
The application of the water-based UV photocuring woodenware coating in corrosion prevention.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a water-based UV photocuring woodenware coating, a photocuring method and application, wherein the photocuring method uses light waves with UVC low waveband, the specific waveband of the light waves is 185-254, the waveband is high-frequency short wave, the wavelength is shorter, and the energy is higher; the curing agent is suitable for surface curing, can promote the initiator in the coating to be instantly cracked, generates free radicals to initiate unsaturated vinyl bond polymerization reaction of resin and monomers in the coating to form a film, is completely and thoroughly cured and dried, has good adhesive force and hardness, has an outstanding surface curing effect, reduces energy consumption in the curing process, and keeps the temperature at about normal temperature; the coating disclosed by the invention has the advantages of low VOC emission in the production process, high curing speed, more than 90% of nodes of the conventional mercury lamp by using a cold light source curing technology, good paint film hardness and adhesion, fine and smooth hand feeling, energy conservation and environmental friendliness.
Detailed Description
Example 1
The water-based UV (ultraviolet) light-cured woodware coating comprises the following raw materials:
40Kg of polyurethane acrylic resin, 20Kg of epoxy acrylic resin, 20Kg of difunctional active monomer, 10Kg of photoinitiator, 5Kg of matte powder, 1.5Kg of flatting agent, 0.5Kg of defoaming agent, 2Kg of dispersing agent and 1Kg of hand feeling agent;
wherein the mass ratio of 2-methyl stem-1- (4-methylthiophenyl) -2-morpholine-1-acetone, 2-hydroxy-2-methyl-1-phenyl-1-acetone, 1-hydroxy-cyclohexyl-phenyl ketone, 2, 4, 6-trimethylbenzoyl-diphenyl phosphorus oxide and benzophenone in the photoinitiator is 1: 1: 1: 1: 1.
the difunctional reactive monomer is acrylic acid-2-glycolic acid; the leveling agent is polysiloxane; the defoaming agent is polydimethylsiloxane; the dispersing agent is sodium methylene dinaphthalene sulfonate; the hand feeling agent is polyethylene wax powder.
The photocuring method of the water-based UV photocuring woodenware coating comprises the following steps:
mixing the components according to the proportion to prepare the water-based UV photocuring woodenware coating;
the prepared water-based UV photocuring woodware coating is coated on the surface of a base material in a roller way, the coating amount of each square wood is 100 g, the conveying speed is 10 m per minute, an initiator is promoted to be instantaneously cracked under the irradiation of cold light UVC ultraviolet rays, radicals are generated to initiate unsaturated vinyl bonds of resin and monomers in the coating to be polymerized to form a film, and the curing and the drying are completely and thoroughly; the UVC ultraviolet light is light wave of UVC low wave band, and the specific wave band of the light wave is 185-254 nm.
Example 2
The water-based UV (ultraviolet) light-cured woodware coating comprises the following raw materials:
37Kg of polyurethane acrylic resin, 21Kg of epoxy acrylic resin, 20Kg of difunctional active monomer, 10Kg of photoinitiator, 4.5Kg of matte powder, 1Kg of leveling agent, 0.5Kg of defoaming agent, 1.5Kg of dispersing agent and 0.6Kg of hand feeling agent;
wherein the mass ratio of 2-methyl stem-1- (4-methylthiophenyl) -2-morpholine-1-acetone, 2-hydroxy-2-methyl-1-phenyl-1-acetone, 1-hydroxy-cyclohexyl-phenyl ketone, 2, 4, 6-trimethylbenzoyl-diphenyl phosphorus oxide and benzophenone in the photoinitiator is 1: 3: 1: 1: 2.
the difunctional reactive monomer is acrylic acid-2-glycolic acid; the leveling agent is acrylic ester; the defoaming agent is polydimethylsiloxane; the dispersing agent is sodium methylene dinaphthalene sulfonate; the hand feeling agent is polyethylene wax powder.
The photocuring method of the water-based UV photocuring woodenware coating comprises the following steps:
mixing the components according to the proportion to prepare the water-based UV photocuring woodenware coating;
the prepared water-based UV photocuring woodware coating is coated on the surface of a base material in a roller way, the coating amount of each square wood is 40 g, the conveying speed is 6 m per minute, an initiator is promoted to be instantaneously cracked under the irradiation of cold light UVC ultraviolet rays, radicals are generated to initiate unsaturated vinyl bonds of resin and monomers in the coating to be polymerized to form a film, and the curing and drying are completely and thoroughly; the UVC ultraviolet light is light wave of UVC low wave band, and the specific wave band of the light wave is 185-254 nm.
Example 3
The water-based UV (ultraviolet) light-cured woodware coating comprises the following raw materials:
40Kg of polyurethane acrylic resin, 18Kg of epoxy acrylic resin, 22.5Kg of difunctional active monomer, 12Kg of photoinitiator, 5Kg of matte powder, 1.5Kg of flatting agent, 0.7Kg of defoaming agent, 2Kg of dispersing agent and 1Kg of hand feeling agent;
wherein, the mass ratio of 2-methyl stem-1- (4-methylthiophenyl) -2-morpholine-1-acetone, 2-hydroxy-2-methyl-1-phenyl-1-acetone, 1-hydroxy-cyclohexyl-phenyl ketone, 2, 4, 6-trimethyl benzoyl-diphenyl phosphorus oxide and benzophenone in the photoinitiator is 3: 1: 1: 1: 2.
the difunctional reactive monomer is acrylic acid-2-glycolic acid; the leveling agent is polysiloxane; the defoaming agent is polydimethylsiloxane; the dispersing agent is sodium methylene dinaphthalene sulfonate; the hand feeling agent is polyethylene wax powder.
The photocuring method of the water-based UV photocuring woodenware coating comprises the following steps:
mixing the components according to the proportion to prepare the water-based UV photocuring woodenware coating;
the prepared water-based UV photocuring woodware coating is coated on the surface of a base material in a roller way, the coating amount of each square wood is 120 g, the conveying speed is 6 m/min and 15 m/min, an initiator is promoted to be instantaneously cracked under the irradiation of cold light UVC ultraviolet rays, radicals are generated to initiate unsaturated vinyl bonds of resin and monomers in the coating to be polymerized to form a film, and the curing and drying are completely and thoroughly; the UVC ultraviolet light is light wave of UVC low wave band, and the specific wave band of the light wave is 185-254 nm.
Example 4
The water-based UV (ultraviolet) light-cured woodware coating comprises the following raw materials:
40Kg of polyurethane acrylic resin, 20Kg of epoxy acrylic resin, 20Kg of difunctional active monomer, 10Kg of photoinitiator, 5Kg of matte powder, 1.5Kg of flatting agent, 0.5Kg of defoaming agent, 2Kg of dispersing agent and 1Kg of hand feeling agent;
wherein, the mass ratio of 2-methyl stem-1- (4-methylthiophenyl) -2-morpholine-1-acetone, 2-hydroxy-2-methyl-1-phenyl-1-acetone, 1-hydroxy-cyclohexyl-phenyl ketone, 2, 4, 6-trimethyl benzoyl-diphenyl phosphorus oxide and benzophenone in the photoinitiator is 3: 1: 3: 3: 2.
the difunctional reactive monomer is acrylic acid-2-glycolic acid; the leveling agent is polysiloxane; the defoaming agent is polydimethylsiloxane; the dispersing agent is sodium methylene dinaphthalene sulfonate; the hand feeling agent is polyethylene wax powder.
The photocuring method of the water-based UV photocuring woodenware coating comprises the following steps:
mixing the components according to the proportion to prepare the water-based UV photocuring woodenware coating;
the prepared water-based UV photocuring woodware coating is coated on the surface of a base material in a roller way, the coating amount of each square wood is 100 g, the conveying speed is 10 m per minute, an initiator is promoted to be instantaneously cracked under the irradiation of cold light UVC ultraviolet rays, radicals are generated to initiate unsaturated vinyl bonds of resin and monomers in the coating to be polymerized to form a film, and the curing and the drying are completely and thoroughly; the UVC ultraviolet light is light wave of UVC low wave band, and the specific wave band of the light wave is 185-254 nm.
Example 5
The water-based UV (ultraviolet) light-cured woodware coating comprises the following raw materials:
40Kg of polyurethane acrylic resin, 20Kg of epoxy acrylic resin, 20Kg of difunctional active monomer, 10Kg of photoinitiator, 5Kg of matte powder, 1.5Kg of flatting agent, 0.5Kg of defoaming agent, 2Kg of dispersing agent and 1Kg of hand feeling agent;
wherein the mass ratio of 2-methyl stem-1- (4-methylthiophenyl) -2-morpholine-1-acetone, 2-hydroxy-2-methyl-1-phenyl-1-acetone, 1-hydroxy-cyclohexyl-phenyl ketone, 2, 4, 6-trimethylbenzoyl-diphenyl phosphorus oxide and benzophenone in the photoinitiator is 2: 3: 3: 2: 2.
the difunctional reactive monomer is acrylic acid-2-glycolic acid; the leveling agent is acrylic ester; the defoaming agent is polydimethylsiloxane; the dispersing agent is sodium methylene dinaphthalene sulfonate; the hand feeling agent is polyethylene wax powder.
The photocuring method of the water-based UV photocuring woodenware coating comprises the following steps:
mixing the components according to the proportion to prepare the water-based UV photocuring woodenware coating;
the prepared water-based UV photocuring woodware coating is coated on the surface of a base material in a roller way, the coating amount of each square wood is 100 g, the conveying speed is 10 m per minute, an initiator is promoted to be instantaneously cracked under the irradiation of cold light UVC ultraviolet rays, radicals are generated to initiate unsaturated vinyl bonds of resin and monomers in the coating to be polymerized to form a film, and the curing and the drying are completely and thoroughly; the UVC ultraviolet light is light wave of UVC low wave band, and the specific wave band of the light wave is 185-254 nm.
The waterborne UV light-curable woodware coatings prepared in examples 1 to 5 were tested according to HG/T3655-.
TABLE 1
In summary, the following steps: the invention provides a water-based UV photocuring woodenware coating, a photocuring method and application, the coating disclosed by the invention has the advantages of low VOC emission in the production process, high curing speed, good paint film hardness and adhesive force, fine and smooth hand feeling, energy conservation and environmental protection, and the photocuring method disclosed by the invention uses light waves with UVC low waveband, wherein the specific waveband of the light waves is 185-plus 254, the waveband is high-frequency short wave, the wavelength is shorter, and the energy is higher; the curing agent is suitable for surface curing, can promote the initiator in the coating to be instantly cracked, generates free radicals to initiate unsaturated vinyl bond polymerization reaction of resin and monomers in the coating to form a film, is completely and thoroughly cured and dried, has good adhesive force and hardness, has an outstanding surface curing effect, reduces energy consumption in the curing process, and keeps the temperature at about normal temperature; compared with the traditional mercury lamp, the cold light source curing technology is more than 90% in node, so that the invention is more energy-saving and environment-friendly.
Claims (9)
1. The water-based UV (ultraviolet) photocuring woodenware coating is characterized by comprising the following raw materials in parts by weight:
37-40 parts of polyurethane acrylic resin, 18-21 parts of epoxy acrylic resin, 20-22.5 parts of difunctional active monomer, 10-12 parts of photoinitiator, 4.5-5 parts of matte powder, 1-1.5 parts of flatting agent, 0.5-0.7 part of defoaming agent, 1.5-2 parts of dispersing agent and 0.6-1 part of hand feeling agent;
wherein the photoinitiator comprises 2-methyl stem-1- (4-methylthiophenyl) -2-morpholine-1-acetone, 2-hydroxy-2-methyl-1-phenyl-1-acetone, 1-hydroxy-cyclohexyl-phenyl ketone, 2, 4, 6-trimethylbenzoyl-diphenyl phosphorus oxide and benzophenone.
2. The water-based UV photocuring woodenware coating as claimed in claim 1, wherein the coating comprises 40 parts of polyurethane acrylic resin, 20 parts of epoxy acrylic resin, 20 parts of difunctional active monomer, 10 parts of photoinitiator, 5 parts of matte powder, 1.5 parts of leveling agent, 0.5 part of defoaming agent, 2 parts of dispersing agent and 1 part of hand feeling agent.
3. The aqueous UV light-curable woodenware coating according to claim 2, wherein the photoinitiator comprises 2-methyl-1- (4-methylthiophenyl) -2-morpholine-1-one, 2-hydroxy-2-methyl-1-phenyl-1-one, 1-hydroxy-cyclohexyl-phenyl ketone, 2, 4, 6-trimethylbenzoyl-diphenylphosphine oxide and benzophenone in a mass ratio of 1-3: 1-3: 1-3: 1-3: 2.
4. the aqueous UV light-cured woodenware coating according to claim 2, wherein the difunctional reactive monomer is acrylic acid-2-glycolic acid.
5. The aqueous UV light-cured woodenware coating as claimed in claim 2, wherein the leveling agent is one of polysiloxane and acrylate.
6. The water-based UV photocuring woodenware coating as claimed in claim 2, wherein the defoaming agent is polydimethylsiloxane, the dispersing agent is sodium methylenedinaphthalene sulfonate, and the hand feeling agent is polyethylene wax powder.
7. The photocuring method of the water-based UV photocuring woodenware coating according to any one of claims 1 to 6, characterized by comprising the following steps:
preparing water-based UV (ultraviolet) photocuring woodware paint according to a proportion;
the prepared water-based UV light-cured woodware coating is coated on the surface of a base material in a roll mode, the coating amount of each square wood is 40-120 g, when the conveying speed is 6-15 m/min, an initiator is prompted to be instantly cracked under the irradiation of cold light UVC ultraviolet rays, radicals are generated to initiate unsaturated vinyl bonds of resin and monomers in the coating to be polymerized into a film, and the curing and drying are completely and thoroughly.
8. The aqueous UV light-cured woodenware coating as claimed in claim 7, wherein the UVC ultraviolet light is light wave of UVC low band, and the specific wavelength band of the light wave is 185-254 nm.
9. Use of an aqueous UV light curable wood coating according to any one of claims 1 to 6 for corrosion protection.
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| CN202210064094.3A CN114395306A (en) | 2022-01-20 | 2022-01-20 | Water-based UV (ultraviolet) photocuring woodware coating, photocuring method and application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116731594A (en) * | 2023-07-03 | 2023-09-12 | 濮阳展辰新材料有限公司 | UVC band curing transparent finish paint and preparation method thereof |
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| CN101516528A (en) * | 2006-09-18 | 2009-08-26 | 爱克发印艺公司 | A device for coating a peripheral surface of a sleeve body |
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Application publication date: 20220426 |