CN115558385A - UV primer preparation and coating method for UV bottom water surface process - Google Patents
UV primer preparation and coating method for UV bottom water surface process Download PDFInfo
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- CN115558385A CN115558385A CN202211384886.5A CN202211384886A CN115558385A CN 115558385 A CN115558385 A CN 115558385A CN 202211384886 A CN202211384886 A CN 202211384886A CN 115558385 A CN115558385 A CN 115558385A
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- acrylate
- primer
- photoinitiator
- coating method
- agent
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- 238000000576 coating method Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000008569 process Effects 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000002987 primer (paints) Substances 0.000 claims abstract description 49
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 44
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 32
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000003085 diluting agent Substances 0.000 claims abstract description 27
- 239000004814 polyurethane Substances 0.000 claims abstract description 21
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229920000728 polyester Polymers 0.000 claims abstract description 20
- 229920002635 polyurethane Polymers 0.000 claims abstract description 20
- 238000009736 wetting Methods 0.000 claims abstract description 18
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 16
- 239000002270 dispersing agent Substances 0.000 claims abstract description 16
- 239000000049 pigment Substances 0.000 claims abstract description 15
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000000080 wetting agent Substances 0.000 claims abstract description 13
- WDHYRUBXLGOLKR-UHFFFAOYSA-N phosphoric acid;prop-2-enoic acid Chemical compound OC(=O)C=C.OP(O)(O)=O WDHYRUBXLGOLKR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 10
- 239000000945 filler Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 238000005507 spraying Methods 0.000 claims abstract description 5
- -1 photoinitiator Substances 0.000 claims abstract description 4
- 238000007761 roller coating Methods 0.000 claims abstract description 4
- 239000003973 paint Substances 0.000 claims description 35
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 16
- 229910021485 fumed silica Inorganic materials 0.000 claims description 16
- FIHBHSQYSYVZQE-UHFFFAOYSA-N 6-prop-2-enoyloxyhexyl prop-2-enoate Chemical compound C=CC(=O)OCCCCCCOC(=O)C=C FIHBHSQYSYVZQE-UHFFFAOYSA-N 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 11
- 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 description 10
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 10
- 239000004925 Acrylic resin Substances 0.000 claims description 9
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 9
- ZDHCZVWCTKTBRY-UHFFFAOYSA-N omega-Hydroxydodecanoic acid Natural products OCCCCCCCCCCCC(O)=O ZDHCZVWCTKTBRY-UHFFFAOYSA-N 0.000 claims description 9
- 239000004408 titanium dioxide Substances 0.000 claims description 8
- 229920006217 cellulose acetate butyrate Polymers 0.000 claims description 7
- QNODIIQQMGDSEF-UHFFFAOYSA-N (1-hydroxycyclohexyl)-phenylmethanone Chemical compound C=1C=CC=CC=1C(=O)C1(O)CCCCC1 QNODIIQQMGDSEF-UHFFFAOYSA-N 0.000 claims description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 229920000178 Acrylic resin Polymers 0.000 claims description 5
- 102100026735 Coagulation factor VIII Human genes 0.000 claims description 5
- 101000911390 Homo sapiens Coagulation factor VIII Proteins 0.000 claims description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 230000037452 priming Effects 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 14
- 230000001070 adhesive effect Effects 0.000 abstract description 14
- 230000008901 benefit Effects 0.000 abstract description 8
- 230000001680 brushing effect Effects 0.000 abstract description 2
- 239000010408 film Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 21
- 239000011229 interlayer Substances 0.000 description 9
- 239000002585 base Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 8
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical class OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000002023 wood Substances 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- AZIQALWHRUQPHV-UHFFFAOYSA-N prop-2-eneperoxoic acid Chemical compound OOC(=O)C=C AZIQALWHRUQPHV-UHFFFAOYSA-N 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 2
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 208000032400 Retinal pigmentation Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Substances CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 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 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/002—Priming paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- 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)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The application relates to the field of UV (ultraviolet) coatings, and particularly discloses a preparation and coating method of a UV primer for a UV bottom water surface process. The UV primer coating method adopts one or more of vacuum spraying, roller coating and manual brushing, and the UV primer comprises the following raw materials: acrylate oligomer, phosphate acrylate, reactive diluent, anti-settling agent, acrylic leveling agent, wetting dispersant, base material wetting agent, defoaming agent, photoinitiator, filler, pigment and film forming substance; the acrylate oligomer comprises 4-functional polyester acrylate and bisphenol A epoxy acrylate, and the weight ratio of the 4-functional polyester acrylate to the modified polyurethane acrylate is 2:1-3:1; the UV primer can be used for coating wooden door lines, has the advantages of strong adhesive force and low possibility of peeling off, and particularly still has good adhesive force at wooden door line corners.
Description
Technical Field
The application relates to the field of UV coatings, in particular to a UV primer preparation and coating method for a UV bottom water surface process.
Background
With the improvement of environmental awareness of people, the UV paint with the advantages of low energy consumption, environmental friendliness, high efficiency and the like is increasingly applied to the household paint market, particularly to wood products such as wood doors, wood tables and the like, and correspondingly, the usage amount of the UV paint in lines matched with the wood doors is gradually increased. Meanwhile, compared with PU paint and NC paint, the water-based paint has the advantages of environmental protection, low VOC, incombustibility and the like, is also in an important position in daily life of people, is in the way of taking UV paint as primer and water-based paint as finish paint, and is widely applied to daily life of people by combining the advantages of the UV paint and the water-based paint.
Although products of the UV primer and the water-based finish paint are more environment-friendly and the coating process is faster, the problem of poor interlayer adhesion force is easy to occur in the line coating process, secondary repair is difficult, and aiming at the problem, a better grinding process is adopted or resin with strong adhesion force is simply added in the current commonly-adopted mode, but the mode addresses the secondary problem but does not address the primary problem, the problem of poor interlayer adhesion force still exists, especially the adhesion force at the corners is poor, and even the coating can be buckled off by forcibly buckling with nails.
In view of the above-mentioned related technologies, the applicant believes that the interlayer adhesion between the UV primer and the water-based finish in the wooden door line process is poor, and especially the adhesion at the line corner needs to be improved.
Disclosure of Invention
In order to solve the problem of poor interlayer adhesion of the UV primer and the water-based finish paint in the wooden door line process in the related technology, the application provides a UV primer preparation and coating method for the UV primer and water-based finish paint process.
The UV primer preparation and coating method for the UV bottom water surface process adopts the following technical scheme:
a UV priming paint preparation coating method for a UV bottom water surface process selects one or more of vacuum spraying, roller coating and manual brush coating, and is characterized in that: the UV primer comprises the following raw materials in percentage by weight: 48-52% of acrylate oligomer, 0.5-1.5% of phosphate acrylate, 7-15% of reactive diluent, 0.05-0.15% of anti-settling agent, 0.2-0.4% of acrylic leveling agent, 0.6-1% of wetting dispersant, 0.05-0.15% of base material wetting agent, 0.1-0.3% of defoaming agent, 3.8-10.2% of photoinitiator, 11.8-21.2% of filler, 6-10% of pigment and 3-7% of film forming substance; the acrylate oligomer comprises 20-30% of 4-functional polyester acrylate and 10-20% of bisphenol A epoxy acrylate, and the weight ratio of the 4-functional polyester acrylate to the modified polyurethane acrylate is 2:1-3:1;
the preparation of the UV primer comprises the following steps:
s1, sequentially adding acrylate oligomer, phosphate acrylate and reactive diluent and pre-dispersing for 8-12min at the dispersion rotating speed of 400-600r/min;
s2, sequentially adding an anti-settling agent, a wetting dispersant, a base material wetting agent, a defoaming agent and an acrylic acid leveling agent into the step S1 at the rotating speed of 400-600r/min, and pre-dispersing for 8-12min;
s3, sequentially adding a photoinitiator, fumed silica, a film forming substance, transparent powder, talcum powder, zinc stearate and pigment into the step S2 at the rotating speed of 400-600r/min, pre-dispersing for 3-7min, and dispersing at a high speed of 1500-2000r/min for 25-35min;
and S4, stopping dispersing, and detecting that the sample is qualified to obtain a finished product.
By adopting the technical scheme, the mode that the polyester acrylic oligomer is matched with the epoxy acrylic and the special modified polyurethane acrylate is adopted, so that the interlayer adhesive force between the UV primer and the water-based finish paint is improved, meanwhile, the UV primer can be partially dissolved when the UV primer is combined with the water-based finish paint, mainly because the polyester acrylate contains a large number of ester bonds and terminal carboxyl groups, the terminal carboxyl groups are easily hydrolyzed when meeting water or alkali, and the water-based paint is alkaline and contains water, namely, the UV primer is easily partially dissolved, the contact area between the UV primer and the upper-layer water-based paint is increased, so that the UV primer and the water-based paint are firmly combined together, and the adhesive force is improved; meanwhile, the phosphate group is easier to permeate into micropores on the surface of the wood, and reacts with residual grease, oxides and acid salt substances in the micropores, so that the adhesive force is further improved.
Preferably, the modified polyurethane acrylate is obtained by introducing a polyurethane and acrylate structure into a hydroxyl-containing acrylic resin molecular chain segment.
By adopting the technical scheme, the added molecular chain segment of the polyurethane acrylate contains polyurethane and acrylate, so that the polyurethane acrylate has good flexibility and adhesion promoting effect, and meanwhile, the adopted main body 4-functional polyester acrylate, bisphenol A epoxy acrylate, modified polyurethane acrylate and phosphate acrylate have good compatibility, the system stability is high, and the paint film forming effect is better.
Preferably, the reactive diluent comprises 3-7% of monofunctional reactive diluent and 4-8% of difunctional reactive diluent, the monofunctional reactive diluent comprises one or more of BA, IDA, LA, HEA, HPA, GMA, HEMA, and the difunctional reactive diluent comprises one or more of DEGDA, HDDA, TEGDA, DPGDA, BDDA.
By adopting the technical scheme, the monofunctional reactive diluent has low viscosity and strong diluting capability, the difunctional reactive diluent has high photocuring rate, is easy to crosslink during film formation, is favorable for improving the mechanical property and the resistance of a cured film, and is mutually matched with the monofunctional reactive diluent so as to obtain the UV primer with higher performance.
Preferably, the reactive diluent comprises 3-7% 2-hydroxyethyl methacrylate and 4-8% 1,6-hexanediol diacrylate.
By adopting the technical scheme, 2-hydroxyethyl methacrylate is taken as an active diluent, homopolymerization is easy to occur, the obtained UV primer has good glossiness and weather resistance, and can react with 1,6-hexanediol diacrylate and other acrylic monomers to prepare the acrylic oligomer containing active hydroxyl, so that the adhesive force is improved, meanwhile, 1,6-hexanediol diacrylate is taken as an active diluent, so that the advantages of low shrinkage and high activity are achieved, the copolymerization reaction is facilitated, and the addition of 2-hydroxyethyl methacrylate and 6-hexanediol diacrylate effectively reduces the system viscosity and facilitates the leveling of a paint film.
Preferably, the filler comprises 0.3-0.7% of fumed silica, 3-7% of transparent powder, 8-12% of talcum powder and 0.5-1.5% of zinc stearate, the anti-settling agent is BYK-405, and the fumed silica is R972; the particle size of the transparent powder is 800-1200 meshes, and the particle size of the talcum powder is 800-1200 meshes.
By adopting the technical scheme, the added transparent powder is beneficial to improving the hardness of the material and the scratch resistance and the wear resistance, the talcum powder can play a role of a framework and also can improve the hardness of a paint film, so that the shape stability of the UV primer is better, the zinc stearate is used as a paint drier, the drying of the paint film can be accelerated, the surface and the inside of the paint film are consistent, and meanwhile, the zinc stearate can reduce the pigment precipitation and reduce the skinning phenomenon caused by the disappearance of the drying force in the pigment or the filler; fumed silica can act on anti-settling agent and use, can effectively reduce the precipitation of pigment, and simultaneously, the anti-settling agent BYK-405 and fumed silica R972 that this application adopted are used in coordination, can obviously improve fumed silica's rheological property and the storage stability of system, and the cooperation result of use is preferred.
Preferably, the wetting dispersant is one or more of BYK-2150, BYKP-105, disperbyk-180 and Disperbyk-168, and the pigment is one or more of titanium dioxide, zinc oxide, titanium dioxide, lithopone, lead white and aluminum powder.
By adopting the technical scheme, the wetting dispersant is added into BYK-2150, so that the wetting and dispersing performance of the pigment is effectively improved, and the system stability after the pigment is added is improved by adding the wetting dispersant BYK-2150, the fumed silica R972 and the anti-settling agent BYK-405.
Preferably, the substrate wetting agent is WET-245, the film forming substance is cellulose acetate butyrate, the defoaming agent is one or more of BYK-055, BYK088, BYK020 and BYK067A, and the acrylic acid leveling agent is one or more of BYK-358N, BYK and BYK 361.
By adopting the technical scheme, the selected base material wetting agent has good substrate wetting property, anti-shrinkage effect and fluidity promotion, the defoaming agent can eliminate fine bubbles, the leveling agent can improve the leveling property, and the forming effect of the UV primer is improved by adding the base material wetting agent, the defoaming agent and the acrylic acid leveling agent.
Preferably, the wetting dispersant is BYK-2150, the defoaming agent is BYK-055, and the acrylic leveling agent is BYK-358N.
By adopting the technical scheme, the wetting dispersant BYK-2150, the base material wetting agent WET-245, the defoaming agent BYK-055 and the acrylic flatting agent BYK-358N are matched for use in the system, so that the UV primer has the advantages of good miscibility, quick defoaming and good flatting property, the influence of the organic silicon flatting agent on the adhesive force is avoided, the comprehensive performance is better, and the processing technology for preparing the UV primer is optimized.
Preferably, the photoinitiator comprises one or more of photoinitiator 1173, photoinitiator 1104, photoinitiator XBPO, photoinitiator 184, photoinitiator 500, photoinitiator 819, TPO.
By adopting the technical scheme, the photoinitiator 1173, the photoinitiator 1104, the photoinitiator XBPO, the photoinitiator 184, the photoinitiator 500, the photoinitiator 819 and the TPO are used as the photoinitiators, so that the photoinitiator has the advantages of high initiation rate and low yellowing tendency.
Preferably, the photoinitiator comprises 1-3% of photoinitiator 1173, 2-6% of photoinitiator 1104 and 0.8-1.2% of photoinitiator XBPO.
By adopting the technical scheme, the paint film can be quickly assisted to be surface-dried and actually dried by matching and using the 2-hydroxy-2-methyl-1-phenyl-1-acetone, the 1-hydroxycyclohexyl phenyl ketone and the XBPO, so that the aim of quickly polishing is fulfilled.
In summary, the present application has the following beneficial effects:
1. the 4-functional polyester acrylate resin is used as the main resin of the formula, so that the whole formula system has good leveling property, high construction latitude and strong interlayer adhesion, and the polyester acrylate resin is partially dissolved and firmly combined with the water-based finish paint in the process of drying the upper water-based finish paint to achieve the purpose of enhancing the interlayer adhesion; meanwhile, the bisphenol A type epoxy acrylate resin is matched, so that the curing speed of a paint film can be effectively improved, and the paint film has better hardness and flexibility; and due to the addition of the cellulose acetate butyrate, the UV primer has certain thixotropy, the fluidity and the leveling property of a paint film are balanced, and the problem of sagging is not easy to occur.
2. The modified polyurethane acrylate and the phosphate acrylate adopted in the application both have acrylic phosphate groups and have excellent adhesive force, and the adhesive force between the modified polyurethane acrylate and the phosphate acrylate can be obviously improved on the premise of balancing performance and cost with the 4-functional polyester acrylate resin of the main body.
3. The UV primer prepared by the method is low in viscosity, good in leveling property, various in construction mode and strong in interlayer adhesive force, reduces the phenomenon of unstable interlayer adhesive force, reduces the problem of later-stage secondary repair, and has good economic benefits and practicability.
Detailed Description
Examples of preparation of raw materials and/or intermediates
The 4-functional polyester acrylate is HT7401;
the bisphenol A type epoxy acrylate is selected from SM6105-80;
the modified polyurethane acrylate is made from a product model LT-4031T of Changsha Guangxin new material company; the modification method of the modified polyurethane acrylate comprises the following steps: a1, mixing polyisocyanate, monohydroxy acrylate and a catalyst in a reaction kettle to obtain a semi-polymer; a2, dissolving hydroxyl acrylic resin in an acrylate active monomer without hydroxyl, and then adding a catalyst, a polymerization inhibitor, an antioxidant and a semi-polymer to obtain a mixture; and a3, adding a monohydroxy acrylate active monomer into the mixture, and then adding phosphorus pentoxide to obtain the modified polyurethane acrylate. According to the method, polyurethane and phosphate ester structures are introduced to the molecular chain segment of the hydroxyl-containing solid acrylic resin, so that the method has a good promotion effect on flexibility and adhesive force.
The phosphate acrylate is selected from CD9051;
the type of the fumed silica is R972;
the cellulose acetate butyrate is selected from CAB381-0.5;
the transparent powder is selected from Guangxi Longsheng chemical company with model TM-30 and particle size of 1000 meshes;
the particle size of the talcum powder is 1000 meshes;
the zinc stearate is selected from ChinSup>A Huaming Tai company with the model number of TV-A;
the type of the titanium dioxide is BLR-895;
examples
Example 1, a method for preparing and coating a UV primer for a UV primer aqueous surface process, the UV primer being prepared from the following raw materials in percentage by weight: 20% of 4-functional polyester acrylate, 20% of bisphenol A epoxy acrylate, 10% of modified polyurethane acrylate, 1% of phosphate acrylate, 5% of HEMA, 6% of HDDA, 0.1% of anti-settling agent BYK-405, 0.8% of wetting dispersant BYK-2150, 0.1% of base material wetting agent WET-245, 0.2% of defoaming agent BYK-055, 0.3% of acrylic leveling agent BYK-358N, 2% of photoinitiator 1173, 4% of photoinitiator 1104, 1% of photoinitiator XBPO, 0.5% of fumed silica, 5% of cellulose acetate butyrate, 5% of 1000-mesh transparent powder, 10% of 1000-mesh talcum powder, 1% of zinc stearate and 8% of titanium dioxide pigment.
That is, in this example, 20kg of 4-functional polyester acrylate, 20kg of bisphenol A epoxy acrylate, 10kg of modified urethane acrylate, 1kg of phosphate acrylate, 5kg of HEMA, 6kg of HDDA, 0.1kg of anti-settling agent BYK-405, 0.8kg of wetting dispersant BYK-2150, 0.1kg of base wetting agent WET-245, 0.2kg of defoaming agent BYK-055, 0.3kg of acrylic leveling agent BYK-358N, 2kg of photoinitiator 1173, 4kg of photoinitiator 1104, 1kg of photoinitiator XBPO, 0.5kg of fumed silica, 5kg of cellulose acetate butyrate, 5kg of 1000 mesh transparent powder, 10kg of 1000 mesh talc, 1kg of zinc stearate, and 8kg of titanium dioxide pigment are used.
The preparation of the UV primer comprises the following steps:
s1, starting a dispersion machine, sequentially adding 4-functional polyester acrylate, bisphenol A epoxy acrylate, modified polyurethane acrylate, phosphate acrylate, HEMA and HDDA into a dispersion cylinder of the dispersion machine, and pre-dispersing for 10min at a rotating speed of 400-600r/min;
s2, sequentially putting an anti-settling agent BYK-405, a wetting dispersant BYK-2150, a base material wetting agent WET-245, a defoaming agent BYK-055 and an acrylic acid leveling agent BYK-358N into the dispersing cylinder in the step S1 at the rotating speed of 400-600r/min, and pre-dispersing for 10min;
s3, sequentially putting a photoinitiator 1173, a photoinitiator 1104, a photoinitiator XBPO, fumed silica R972, a film-forming substance cellulose acetate butyrate, 1000-mesh transparent powder, 1000-mesh talcum powder, zinc stearate and pigment titanium dioxide into the dispersion cylinder in the step S2 at the rotating speed of 400-600R/min, pre-dispersing for 5min, and then dispersing at a high speed of 1500-2000R/min for 30min;
and S4, stopping dispersing, and detecting that the sample is qualified to obtain a finished product.
The coating method of the UV primer adopts vacuum spraying, roller coating, manual brushing or a mixture of several methods, and the application mainly adopts a vacuum spraying method.
Example 2, example 2 differs from example 1 in that: the 4-functional polyester acrylate of example 2 was 25kg, and the bisphenol A type epoxy acrylate was 15kg;
example 3, example 3 differs from example 1 in that: the 4-functional polyester acrylate of example 3 was 30kg, and the bisphenol A type epoxy acrylate was 10kg;
example 4, example 4 differs from example 3 in that: the pigment used in example 4 was 8kg of aluminum powder.
Example 5, example 5 differs from example 3 in that: the monofunctional reactive diluent was 5kg of HEA.
Example 6, example 6 differs from example 3 in that: the difunctional reactive diluent was 6kg of BDDA.
Example 7, example 7 differs from example 3 in that: the monofunctional reactive diluent was 5kg of HEA and the difunctional reactive diluent was 6kg of BDDA.
Example 8, example 8 differs from example 3 in that: the wetting dispersant was 0.8kg of BYKP-105.
Example 9, example 9 differs from example 3 in that: the antifoam was 0.2kg of BYK088.
Example 10, example 10 differs from example 3 in that: the acrylic leveling agent was 0.3kg of BYK371.
Example 11, example 11 differs from example 3 in that: 1kg of photoinitiator XBPO was replaced by 1kg of photoinitiator 184.
Example 12, example 12 differs from example 3 in that: 4kg of photoinitiator 1104 was substituted for 4kg of photoinitiator 184.
Example 13, example 13 differs from example 3 in that: 2kg of photoinitiator 1173 was replaced by 2kg of photoinitiator 184.
Comparative example
Comparative example 1, comparative example 1 differs from example 3 in that: the modified urethane acrylate was 15kg, and the HDDA was 1kg.
Comparative example 2, comparative example 2 differs from example 3 in that: the modified urethane acrylate was 5kg and the HDDA was 11kg.
Comparative example 3, comparative example 3 differs from comparative example 2 in that: 10kg of 4-functional polyester acrylate and 30kg of bisphenol A epoxy acrylate.
Comparative example 4, comparative example 4 differs from comparative example 3 in that: the modified urethane acrylate was 10kg, and the HDDA was 6kg.
Comparative example 5, comparative example 5 differs from example 1 in that: the modified urethane acrylate was 5kg and the HDDA was 11kg.
Comparative example 6, comparative example 6 differs from example 3 in that: the anti-settling agent is 0.1 of anti-settling agent BYK-405.
Comparative example 7, comparative example 7 differs from example 3 in that: the fumed silica was 0.5kg of fumed silica HL-300.
Performance test
And (3) viscosity detection: GB/T2794-2013 is adopted;
and (3) adhesive force detection: GB/T9286-2021 is adopted;
fineness detection, sanding property detection, paint film appearance detection and storage stability detection: the industrial standard HG/T3655-2012 is adopted;
detection method/test method
Table 1 shows the performance parameters of examples 1 to 13 of the present application
In the detection process, the adhesive force of the embodiment 4 is stronger compared with that of the embodiment 4 in the embodiment 3; example 3 has better leveling properties than examples 5, 6, and 7; compared with the examples 8, 9 and 10, the example 3 has higher miscibility, fast defoaming, better leveling property and better comprehensive performance; example 3 compares with examples 11, 12, and 13, and example 3 has better grindability.
Table 2 shows the performance parameters of comparative examples 1 to 7
As can be seen by combining examples 1 to 3 and comparative example 4 with tables 1 and 2, when the percentage of 4-functional polyester acrylate is 20 to 30% and the amount of bisphenol A type epoxy acrylate is 10 to 20%, the film forming property of the UV primer is better, mainly because the film hardness is higher due to the high amount of bisphenol A type epoxy acrylate.
It can be seen from the combination of examples 3 and 4 that when the selected filler is aluminum powder, the adhesion is improved, mainly because the phosphate groups on the acrylic resin can chemically react with the surface of the aluminum powder to form a phosphate metal salt, which becomes one of the main components of the phosphate film, and further, the phosphate ester can be firmly connected to the surface of the aluminum powder in a covalent bond form, so that the adhesion is improved.
When the content of the modified urethane acrylate is too high, for example, more than 10%, the leveling property of the paint film is lowered, as can be seen by combining example 3 with comparative example 1 and combining tables 1 and 2.
When the content of the modified urethane acrylate is too low, it can be seen from the combination of example 3 and comparative example 2 and tables 1 and 2 that the adhesion is lowered.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. A UV priming paint preparation coating method for a UV bottom water surface process selects one or more of vacuum spraying, roller coating and manual brush coating, and is characterized in that: the UV primer comprises the following raw materials in percentage by weight: 48-52% of acrylate oligomer, 0.5-1.5% of phosphate acrylate, 7-15% of reactive diluent, 0.05-0.15% of anti-settling agent, 0.2-0.4% of acrylic leveling agent, 0.6-1% of wetting dispersant, 0.05-0.15% of base material wetting agent, 0.1-0.3% of defoaming agent, 3.8-10.2% of photoinitiator, 11.8-21.2% of filler, 6-10% of pigment and 3-7% of film forming substance; the acrylate oligomer comprises 20-30% of 4-functional polyester acrylate and 10-20% of bisphenol A epoxy acrylate, and the weight ratio of the 4-functional polyester acrylate to the modified polyurethane acrylate is 2:1-3:1;
the preparation of the UV primer comprises the following steps:
s1, sequentially adding acrylate oligomer, phosphate acrylate and reactive diluent and pre-dispersing for 8-12min at the dispersion rotating speed of 400-600r/min;
s2, sequentially adding an anti-settling agent, a wetting dispersant, a base material wetting agent, a defoaming agent and an acrylic acid leveling agent into the step S1 at the rotating speed of 400-600r/min, and pre-dispersing for 8-12min;
s3, sequentially adding a photoinitiator, fumed silica, a film forming substance, transparent powder, talcum powder, zinc stearate and pigment into the step S2 at the rotating speed of 400-600r/min, pre-dispersing for 3-7min, and dispersing at a high speed of 1500-2000r/min for 25-35min;
and S4, stopping dispersing, and detecting that the sample is qualified to obtain a finished product.
2. The UV primer preparation coating method for the UV bottom waterborne surface process according to claim 1, characterized in that: the modified polyurethane acrylate is obtained by introducing polyurethane and acrylate structures into a hydroxyl-containing acrylic resin molecular chain segment.
3. The UV primer preparation coating method for the UV bottom waterborne surface process according to claim 1, characterized in that: the reactive diluent comprises 3-7% of monofunctional reactive diluent and 4-8% of difunctional reactive diluent, the monofunctional reactive diluent comprises one or more of BA, IDA, LA, HEA, HPA, GMA and HEMA, and the difunctional reactive diluent comprises one or more of DEGDA, HDDA, TEGDA, DPGDA and BDDA.
4. The UV primer preparation coating method for the UV bottom waterborne surface process according to claim 3, characterized in that: the monofunctional reactive diluent is 2-hydroxyethyl methacrylate, and the multifunctional reactive diluent is 1,6-hexanediol diacrylate.
5. The UV primer preparation coating method for the UV primer surface process according to claim 1, characterized in that: the filler comprises 0.3-0.7% of fumed silica, 3-7% of transparent powder, 8-12% of talcum powder and 0.5-1.5% of zinc stearate, the anti-settling agent is BYK-405, and the fumed silica is R972; the particle size of the transparent powder is 800-1200 meshes, and the particle size of the talcum powder is 800-1200 meshes.
6. The UV primer preparation coating method for the UV bottom waterborne surface process is characterized in that: the wetting dispersant is one or more of BYK-2150, BYKP-105, disperbyk-180 and Disperbyk-168, and the pigment is one or more of titanium dioxide, zinc oxide, titanium dioxide, lithopone, lead white and aluminum powder.
7. The UV primer preparation coating method for the UV primer surface process according to claim 6, characterized in that: the base material wetting agent is WET-245, the film forming substance is cellulose acetate butyrate, the defoaming agent is one or more of BYK-055, BYK088, BYK020 and BYK067A, and the acrylic acid leveling agent is one or more of BYK-358N, BYK and BYK 361.
8. The UV primer preparation coating method for the UV bottom waterborne surface process according to claim 7, characterized in that: the wetting dispersant is BYK-2150, the defoaming agent is BYK-055, and the acrylic leveling agent is BYK-358N.
9. The UV primer preparation coating method for the UV bottom waterborne surface process according to claim 1, characterized in that: the photoinitiator comprises one or more of photoinitiator 1173, photoinitiator 1104, photoinitiator XBPO, photoinitiator 184, photoinitiator 500, photoinitiator 819 and TPO.
10. The UV primer preparation coating method for the UV primer surface process according to claim 9, characterized in that: the photoinitiator comprises 1-3% of photoinitiator 1173, 2-6% of photoinitiator 1104 and 0.8-1.2% of photoinitiator XBPO.
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