CN113861808A - Roller coating UV white primer with excellent UV ink wettability and preparation method thereof - Google Patents
Roller coating UV white primer with excellent UV ink wettability and preparation method thereof Download PDFInfo
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- CN113861808A CN113861808A CN202111233891.1A CN202111233891A CN113861808A CN 113861808 A CN113861808 A CN 113861808A CN 202111233891 A CN202111233891 A CN 202111233891A CN 113861808 A CN113861808 A CN 113861808A
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- 238000007761 roller coating Methods 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims description 7
- 239000002002 slurry Substances 0.000 claims abstract description 41
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 39
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical class C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 claims abstract description 28
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 27
- 239000002318 adhesion promoter Substances 0.000 claims abstract description 27
- 239000003085 diluting agent Substances 0.000 claims abstract description 27
- 239000012463 white pigment Substances 0.000 claims abstract description 27
- 239000002270 dispersing agent Substances 0.000 claims abstract description 26
- 229920003232 aliphatic polyester Polymers 0.000 claims abstract description 25
- 239000003999 initiator Substances 0.000 claims abstract description 24
- 238000003756 stirring Methods 0.000 claims description 36
- 238000000227 grinding Methods 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 20
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 16
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- 238000005303 weighing Methods 0.000 claims description 10
- 229920000058 polyacrylate Polymers 0.000 claims description 8
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 3
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 3
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 3
- GUCYFKSBFREPBC-UHFFFAOYSA-N [phenyl-(2,4,6-trimethylbenzoyl)phosphoryl]-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C(=O)C1=C(C)C=C(C)C=C1C GUCYFKSBFREPBC-UHFFFAOYSA-N 0.000 claims description 3
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 3
- 239000012965 benzophenone Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 claims description 2
- VALXVSHDOMUUIC-UHFFFAOYSA-N 2-methylprop-2-enoic acid;phosphoric acid Chemical compound OP(O)(O)=O.CC(=C)C(O)=O VALXVSHDOMUUIC-UHFFFAOYSA-N 0.000 claims description 2
- 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 2
- 239000005083 Zinc sulfide Substances 0.000 claims description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Substances CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 2
- 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 description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 2
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 2
- 238000010146 3D printing Methods 0.000 abstract description 25
- 238000000576 coating method Methods 0.000 abstract description 25
- 239000011248 coating agent Substances 0.000 abstract description 20
- 239000000853 adhesive Substances 0.000 abstract description 15
- 230000001070 adhesive effect Effects 0.000 abstract description 15
- 239000012855 volatile organic compound Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000976 ink Substances 0.000 description 39
- 239000000203 mixture Substances 0.000 description 17
- 239000010410 layer Substances 0.000 description 16
- 235000010215 titanium dioxide Nutrition 0.000 description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 239000003086 colorant Substances 0.000 description 10
- 238000001723 curing Methods 0.000 description 9
- 239000003973 paint Substances 0.000 description 9
- 239000001038 titanium pigment Substances 0.000 description 8
- 238000009736 wetting Methods 0.000 description 8
- 239000011229 interlayer Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000049 pigment Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- WDFFWUVELIFAOP-UHFFFAOYSA-N 2,6-difluoro-4-nitroaniline Chemical compound NC1=C(F)C=C([N+]([O-])=O)C=C1F WDFFWUVELIFAOP-UHFFFAOYSA-N 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 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 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000007774 anilox coating Methods 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- MZRQZJOUYWKDNH-UHFFFAOYSA-N diphenylphosphoryl-(2,3,4-trimethylphenyl)methanone Chemical compound CC1=C(C)C(C)=CC=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 MZRQZJOUYWKDNH-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Images
Classifications
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- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
- C09D163/10—Epoxy resins modified by unsaturated compounds
-
- 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
Abstract
The invention belongs to the technical field of ultraviolet curing coatings, and particularly relates to a roller coating UV white primer with excellent adhesiveness and UV ink wettability, which comprises the following components in parts by mass: 10 to 30 percent of modified epoxy acrylate, 10 to 30 percent of aliphatic polyester acrylate, 30 to 55 percent of white slurry, 0 to 5 percent of adhesion promoter, 3 to 8 percent of initiator and 0.01 to 1.0 percent of flatting agent; wherein: the white pulp comprises the following components: 10 to 30 percent of active diluent, 0.2 to 1.5 percent of dispersant and 60 to 80 percent of white pigment. The invention has the beneficial effects that: the problems that the wettability of UV ink of a 3D printing decorative plate product on the UV white primer is poor, the adhesive force of the UV white primer and the adhesive force of an upper coating and a lower coating are poor and the like are solved, the obtained roller coating UV white primer has excellent 3D printing UV ink wettability, has good adhesive force with lower UV putty and an upper 3D printing image layer, is free of VOC (volatile organic compounds) emission and is environment-friendly.
Description
Technical Field
The invention belongs to the technical field of ultraviolet curing coatings, and particularly relates to a roller coating UV white primer with excellent UV ink wettability and a preparation method thereof.
Background
Ultraviolet (UV) curing coating is an environment-friendly energy-saving coating developed in the last 60 years, and after being irradiated by ultraviolet light, the UV curing coating generates photochemical reaction so as to cause polymerization and crosslinking, so that a liquid coating is instantly changed into a solid coating. Because of the advantages of energy saving, less solvent discharge, high curing speed (0.1-10s), excellent coating performance and the like, the coating is widely applied to the fields of decorative plate coating and the like.
At present, the coating process adopted by the decorative plate is as follows: sanding, dedusting, roll coating a penetrating paint, UV back coating, UV putty, UV white primer, 3D printed finish (or other finishes), sanding primer, finishing paint, and the like are performed on the decorative sheet. The same is true for the 3D printing decorative plate coating process. According to the process, the lower layer of the UV white primer is matched with the UV putty, and the upper layer of the UV white primer is matched with the 3D printed image, so that the important function of starting and stopping is achieved. The quality defect of the existing products in the market is that the interlayer adhesion force between the UV white bottom and the UV putty on the lower layer and the UV printing ink on the upper layer in the 3D printing process is poor, so that the interlayer adhesion force of the finished product is influenced; meanwhile, the wettability of the UV ink for 3D printing on the UV white primer is poor, and the image effect of the 3D printing coating is influenced.
Chinese patent CN103756519A provides a UV white primer with high covering power, which comprises standard bisphenol A epoxy acrylic resin, an active diluent, a white pigment, nitrocotton liquid, a filler, a photoinitiator and an organic solvent, the white primer is high in curing and drying speed by roll coating, the obtained paint film has good adhesive force with a base material, high covering power can be obtained by roll coating once, the process amount can be remarkably reduced, the production efficiency is improved, the environment is friendly, and no VOC is discharged.
Chinese patent CN109929403A provides a high-hardness UV white primer for anilox roller coating, which comprises epoxy acrylate, a monomer, a filler, white pigment concentrated slurry, a photoinitiator, a dust-proof agent, a defoaming agent and a leveling agent, wherein the epoxy acrylate and the monomer are compounded to ensure that the high-hardness UV white primer has excellent paint film flatness, leveling property and yellowing resistance, and can be widely used for processing white backing plates.
The technology has certain improvement on the aspects of leveling property, adhesive force, VOC (volatile organic compounds) emission and the like, but is not applied to 3D printing decorative plates, and the adhesive force and wettability are not improved simultaneously, so that the interlayer adhesive force of the UV white base, the lower UV putty layer and the upper 3D printing UV ink and the wettability of the 3D printing UV ink on the UV white primer meet the requirements simultaneously.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the roller coating UV white primer with excellent UV ink wettability and the preparation method thereof, and solves the problems of poor wettability of UV ink on the UV white primer, poor adhesion between the UV white primer and upper and lower coatings and the like of a 3D printing decorative plate product.
In order to achieve the purpose, the invention adopts the following technical scheme:
a roller coating UV white primer with excellent UV ink wettability comprises the following components in percentage by mass: 10 to 30 percent of modified epoxy acrylate, 10 to 30 percent of aliphatic polyester acrylate, 30 to 55 percent of white slurry, 0 to 5 percent of adhesion promoter, 3 to 8 percent of initiator and 0.01 to 1.0 percent of flatting agent;
wherein: the white pulp comprises the following components: 10 to 30 percent of active diluent, 0.2 to 1.5 percent of dispersant and 60 to 80 percent of white pigment.
Preferably, the white pulp consists of: 24.1 percent of reactive diluent, 0.9 percent of dispersant and 75 percent of white pigment.
The modified epoxy acrylate used by the UV white primer disclosed by the invention is high in hardness, excellent in chemical resistance, good in toughness, good in pigment wettability and good in substrate wetting and spreading;such as: dismanagisynTM3050、AgiSynTM3055、AgiSynTM3020-A80 and the like.
The aliphatic polyester acrylate has excellent wetting leveling property and flexibility, small curing shrinkage and good adhesive force; such as: zhanxin EBECRYL571, Guangzhou Lijun new material LJ-1235 and the like.
The adhesion promoter is one or more of methacrylate phosphate and pure acrylate, and can effectively improve the adhesion between the UV white primer and the upper UV ink and the lower UV putty; such as: new material ST6610 (component 2-hydroxyethyl methacrylate phosphate, trade name of 2-hydroxyethyl methacrylate phosphate is ST6610), and DismanagiSynTM260-AB50、AgiSynTM268-B70, and the like.
The active diluent is one or more of tripropylene glycol diacrylate (TPGDA), trimethylolpropane triacrylate (TMP TA), 1, 6-hexanediol diacrylate (HDDA) and hydroxyethyl methacrylate (HEMA), and has the functions of reducing viscosity and improving adhesion.
The initiator is one or more of 1-hydroxy-cyclohexyl-phenyl ketone (184), 2-hydroxy-2-methyl-1-phenyl-1-acetone (1173), 2,4, -6 (trimethylbenzoyl) diphenyl phosphine oxide (TPO), phenyl bis (2,4, 6-trimethylbenzoyl) phosphine oxide (819) and Benzophenone (BP). When the mixed initiator of 184 and TPO is selected, the mass ratio of the two is 2: 4.
the dispersing agents are Pico Disper byk-111, Disper byk-105 and digao Dispers 652.
The white pigment is one or more of lithopone, titanium dioxide, zinc sulfide and zinc oxide, and is ground with a monomer to prepare white slurry.
The leveling agent is one or more of fluorocarbon (such as Effka fluorocarbon EFKA-3777), polyacrylate (such as BYK-361N), and organosilicon (such as BYK-333).
A preparation method of a roller coating UV white primer with excellent UV ink wettability comprises the following steps: (1) weighing 10-30% of active diluent, 0.2-1.5% of dispersant and 60-80% of white pigment according to the mass percentage, respectively, putting the materials into a grinding tank, grinding at the rotating speed of 1500-; (2) then taking 30-55% of white slurry, 10-30% of modified epoxy acrylate, 10-30% of aliphatic polyester acrylate, 0-5% of adhesion promoter, 3-8% of initiator and 0.01-1.0% of flatting agent, fully stirring for 5-20min at the stirring speed of 500 plus materials of 1000rpm to uniformly mix the materials, fully stirring for 10-40min at the stirring speed of 1000 plus materials of 1500rpm, standing, adding-free, standing, defoaming and filtering to obtain the roller coating UV white primer with excellent UV ink wettability.
Preferably, the titanium white slurry has the following composition: 24.1 percent of reactive diluent, 0.9 percent of dispersant and 75 percent of white pigment.
The invention has the beneficial effects that: the high-toughness modified epoxy acrylate oligomer selected by the invention has good chemical resistance, excellent pigment wettability, good wetting and spreading performance on a substrate and favorable improvement of adhesive force; the selected aliphatic polyester acrylate has the characteristics of low shrinkage, good pigment wettability, good adhesive force and the like, the use of a silane wetting and leveling agent in a product is avoided, and meanwhile, the long carbon chain with ester bonds is contained, so that the flexibility of a paint film can be improved; the selected adhesion promoter is a 2-hydroxyethyl methacrylate phosphate functional monomer, contains hydroxyl and phosphate active groups, and can generate hydrogen bonds or chemical bonds with the surface of the lower UV putty, so that the adhesion to the lower layer is improved; and because the adhesion promoter contains methyl acrylate, the curing rate is relatively slow, and the coating film is in a half-dry state and can be mutually diffused and penetrated with the upper layer of the 3D printing image layer, so that the adhesion with the upper layer is improved. Based on the excellent properties of the selected resin and the auxiliary agent in the product, the auxiliary agent containing silicon is avoided in the preparation process, so that great contribution is made to improving the wettability of the 3D printing UV ink on the UV white background.
Aiming at the problems of poor wettability of 3D printing UV ink on a UV white primer, poor adhesion of the UV white primer to an upper coating and a lower coating and the like in the prior art, the invention adopts epoxy acrylate with excellent chemical resistance, boiling resistance, high hardness and excellent pigment wettability, and aliphatic polyester acrylate with excellent wetting leveling property, flexibility, curing shrinkage and adhesion as main resin, and adds a certain amount of adhesion promoter to improve the interlayer adhesion of the product to an U V putty layer and a 3D printing UV ink layer respectively. Meanwhile, the wettability of the two main resins is good, and the use of silicon additives in the formula is avoided, so that the wettability of the UV ink for 3D printing on the UV white primer is further improved. The UV white primer obtained by the invention has excellent UV ink wettability and upper and lower layer adhesive force, and the obtained 3D printed decorative plate has good quality.
Drawings
FIG. 1 is a graph of the contact angle measurements for example 1 on 3 base colors (red, yellow, blue) UV ink;
FIG. 2 is a graph of the contact angle measurements for example 2 on 3 base colors (red, yellow, blue) UV ink;
FIG. 3 is a graph of the contact angle measurements for example 3 on 3 base colors (red, yellow, blue) UV ink;
FIG. 4 is a graph of the contact angle of example 4 against UV inks of 3 base colors (red, yellow, blue);
FIG. 5 is a graph of the contact angle of example 5 against UV inks of 3 base colors (red, yellow, blue);
FIG. 6 is a graph of the contact angle of example 6 with 3 base colors (red, yellow, blue) of UV ink;
FIG. 7 is a graph of the contact angle measurements for example 7 on 3 base colors (red, yellow, blue) UV ink;
FIG. 8 is a graph of the contact angle of example 8 with 3 base colors (red, yellow, blue) of UV ink.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the following examples, and it is obvious that the described examples are only a part of the examples of the present invention, but not all of the examples. 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.
For comparison, in the examples of the present invention, except for example 6, modified epoxy acrylate was GeiShman AgiSynTM3050. The aliphatic polyester acrylate is Zhanxin EBECRYL571, the reactive diluent is TPGDA, the dispersant is Digao Dispers 652, the titanium white is python 996, the adhesion promoter is New Ganzhou Dajiang river ST6610, the initiator is 184 and TPO, and the leveling agent is one of Effka EFKA-3777, Bike acrylates BYK-361N or organic silicon BYK-333.
Example 1
The white primer of the embodiment comprises the following components in percentage by mass: 49% of white slurry (wherein the titanium white slurry comprises 24.1% of reactive diluent (TPGDA), 0.9% of dispersant (Digao Dispers 652), 75% of white pigment (python titanium dioxide 996) and modified epoxy acrylate (AgiSyn)TM3050)20 percent, 19.96 percent of aliphatic polyester acrylate (Zhan New EBECRYL571), 5 percent of adhesion promoter (Ganzhou Dajiang ST6610), 184 percent of initiator (TPO, the mass ratio of 2:4)6 percent of flatting agent (polyacrylate BYK-361N)0.04 percent.
Weighing 24.1% of active diluent (TPGDA), 0.9% of dispersant (Dispers 652) and 75% of white pigment (python titanium pigment 996) according to the mass percentage, respectively, putting the mixture into a grinding tank for grinding until the fineness reaches below 10um, and stopping grinding to prepare white slurry; then taking 49% of white slurry and modified epoxy acrylate (AgiSyn)TM3050)20 percent, 19.96 percent of aliphatic polyester acrylate (Zhan New EBECRYL571), 5 percent of adhesion promoter (Ganzhou Dajiang ST6610), and initiator (mass ratio 184: TPO (2: 4) 6% and a flatting agent (polyacrylate BYK-361N) 0.04%, fully stirring for 10min at a stirring speed of 800rpm to uniformly mix the materials, fully stirring for 30min at a stirring speed of 1200rpm, standing, defoaming (standing defoaming), filtering, and preparing the roller coating UV white primer.
Example 2
The white primer of the embodiment comprises the following components in percentage by mass: 49% of white slurry (wherein the titanium white slurry comprises 24.1% of reactive diluent, 0.9% of dispersing agent and 75% of white pigment), 21% of modified epoxy acrylate, 20.96% of aliphatic polyester acrylate, 3% of adhesion promoter, 6% of initiator and 0.04% of flatting agent (polyacrylate BYK-361N).
Weighing 24.1% of active diluent (TPGDA), 0.9% of dispersant (Dispers 652) and 75% of white pigment (python titanium pigment 996) according to the mass percentage, respectively, putting the mixture into a grinding tank for grinding until the fineness reaches below 10um, and stopping grinding to prepare white slurry; then taking 49% of white slurry and modified epoxy acrylate (AgiSyn)TM3050)21 percent, 20.96 percent of aliphatic polyester acrylate (Zhan New EBECRYL571), 3 percent of adhesion promoter (Ganzhou Dajiang ST6610), and initiator (mass ratio 184: TPO (2: 4) 6% and a flatting agent (polyacrylate BYK-361N) 0.04%, fully stirring for 10min at a stirring speed of 800rpm to uniformly mix the materials, fully stirring for 30min at a stirring speed of 1200rpm, standing, defoaming (standing defoaming), filtering, and preparing the roller coating UV white primer.
Example 3
The white primer of the embodiment comprises the following components in percentage by mass: 49% of white slurry (wherein the titanium white slurry comprises 24.1% of reactive diluent, 0.9% of dispersing agent and 75% of white pigment), 22% of modified epoxy acrylate, 22.96% of aliphatic polyester acrylate, 0% of adhesion promoter, 6% of initiator and 0.04% of flatting agent (polyacrylate BYK-361N).
Weighing 24.1% of active diluent (TPGDA), 0.9% of dispersant (Dispers 652) and 75% of white pigment (python titanium pigment 996) according to the mass percentage, respectively, putting the mixture into a grinding tank for grinding until the fineness reaches below 10um, and stopping grinding to prepare white slurry; then taking 49% of white slurry and modified epoxy acrylate (AgiSyn)TM3050)22 percent, 22.96 percent of aliphatic polyester acrylate (Zhan New EBECRYL571), 0 percent of adhesion promoter (Ganzhou Dajiang ST6610), and initiator (mass ratio 184: TPO 2:4)6 percent and flatting agent (polyacrylate BYK-361N)0.04 percent are fully stirred for 10min at the stirring speed of 800rpm to uniformly mix the materials, and then the mixture is stirred at 120 DEGFully stirring for 30min at the stirring speed of 0rpm, standing, defoaming (standing defoaming) and filtering to prepare the roller coating UV white primer.
Example 4
The white primer of the embodiment comprises the following components in percentage by mass: 49% of white slurry (wherein the titanium white slurry comprises 24.1% of reactive diluent, 0.9% of dispersing agent and 75% of white pigment), 20% of modified epoxy acrylate, 19.5% of aliphatic polyester acrylate, 5% of adhesion promoter, 6% of initiator and 0.5% of flatting agent. The leveling agent is organic silicon leveling agent.
Weighing 24.1% of active diluent (TPGDA), 0.9% of dispersant (Dispers 652) and 75% of white pigment (python titanium pigment 996) according to the mass percentage, respectively, putting the mixture into a grinding tank for grinding until the fineness reaches below 10um, and stopping grinding to prepare white slurry; then taking 49% of white slurry and modified epoxy acrylate (AgiSyn)TM3050)20 percent, 19.5 percent of aliphatic polyester acrylate (Zhan New EBECRYL571), 5 percent of adhesion promoter (Ganzhou Dajiang ST6610), and initiator (mass ratio 184: TPO (2: 4) 6% and a flatting agent (organic silicon BYK-333) 0.5%, fully stirring at the stirring speed of 800rpm for 10min to uniformly mix the materials, fully stirring at the stirring speed of 1200rpm for 30min, standing, defoaming (standing defoaming), filtering, and preparing the roller coating UV white primer.
Example 5
The white primer of the embodiment comprises the following components in percentage by mass: 49% of white slurry (wherein the titanium white slurry comprises 24.1% of reactive diluent, 0.9% of dispersing agent and 75% of white pigment), 20% of modified epoxy acrylate, 19% of aliphatic polyester acrylate, 5% of adhesion promoter, 6% of initiator and 1.0% of flatting agent. The leveling agent is organic silicon leveling agent.
Weighing 24.1% of active diluent (TPGDA), 0.9% of dispersant (Dispers 652) and 75% of white pigment (python titanium pigment 996) according to the mass percentage, respectively, putting the mixture into a grinding tank for grinding until the fineness reaches below 10um, and stopping grinding to prepare white slurry; then taking 49% of white slurry and modified epoxy acrylate (AgiSyn)TM3050)20％The paint is prepared by the following steps of mixing the raw materials uniformly by stirring at 800rpm for 10min, stirring at 1200rpm for 30min, standing, defoaming (standing for defoaming), and filtering to prepare the roller coating UV white primer.
Example 6
The white primer of the embodiment comprises the following components in percentage by mass: 36 percent of white slurry (wherein the components of the titanium white slurry comprise 19.7 percent of reactive diluent, 0.9 percent of dispersant and 79.4 percent of white pigment), 30 percent of modified epoxy acrylate, 22 percent of aliphatic polyester acrylate, 5 percent of adhesion promoter, 6 percent of initiator and 1.0 percent of flatting agent. The leveling agent is organic silicon leveling agent.
Respectively weighing 19.7% of active diluent (TMPTA), 0.9% of dispersant (Disper byk-105) and 79.4% of white pigment (python titanium pigment 996) according to the mass percentage, putting the mixture into a grinding tank for grinding until the fineness reaches below 10um, stopping grinding, and preparing white slurry; then taking 36% of white slurry and modified epoxy acrylate (AgiSyn)TM3055)30 percent of aliphatic polyester acrylate (New Guangzhou Lijun material LJ-1235) and 22 percent of adhesion promoter (Dismantan AgiSyn)TM260-A B50), 5%, initiator (mass ratio 184: TPO (2: 4) 6% and a flatting agent (organic silicon BYK-333) 1.0%, fully stirring at the stirring speed of 800rpm for 10min to uniformly mix the materials, fully stirring at the stirring speed of 1200rpm for 30min, standing, defoaming (standing defoaming), filtering, and preparing the roller coating UV white primer.
Example 7
The white primer of the embodiment comprises the following components in percentage by mass: 54% of white slurry (wherein the titanium white slurry comprises 29.1% of active diluent, 0.9% of dispersant and 70% of white pigment), 16% of modified epoxy acrylate, 18% of aliphatic polyester acrylate, 5% of adhesion promoter, 6% of initiator and 1.0% of flatting agent. The leveling agent is organic silicon leveling agent.
According to mass percentRespectively weighing 29.1% of active diluent (TPGDA), 0.9% of dispersant (Dispers 652 digao) and 70% of white pigment (python titanium pigment 996) and putting the mixture into a grinding tank for grinding until the fineness reaches below 10um, and stopping grinding to prepare white slurry; taking 54% of white slurry and modified epoxy acrylate (AgiSyn)TM3050) 16% of aliphatic polyester acrylate (Zhanxin EBECRYL571), 5% of adhesion promoter (Ganzhou Dajiang ST6610), and an initiator (mass ratio 184: TPO (2: 4) 6% and a flatting agent (organic silicon BYK-333) 1.0%, fully stirring at the stirring speed of 800rpm for 10min to uniformly mix the materials, fully stirring at the stirring speed of 1200rpm for 30min, standing, defoaming (standing defoaming), filtering, and preparing the roller coating UV white primer.
Example 8
The white primer of the embodiment comprises the following components in percentage by mass: 49% of white slurry (wherein the titanium white slurry comprises 24.1% of reactive diluent, 0.9% of dispersing agent and 75% of white pigment), 20% of modified epoxy acrylate, 19.5% of aliphatic polyester acrylate, 5% of adhesion promoter, 6% of initiator and 0.5% of flatting agent. The flatting agent is a fluorocarbon flatting agent.
Weighing 24.1% of active diluent (TPGDA), 0.9% of dispersant (Dispers 652) and 75% of white pigment (python titanium pigment 996) according to the mass percentage, respectively, putting the mixture into a grinding tank for grinding until the fineness reaches below 10um, and stopping grinding to prepare white slurry; then taking 49% of white slurry and modified epoxy acrylate (AgiSyn)TM3050)20 percent, 19.5 percent of aliphatic polyester acrylate (Zhan New EBECRYL571), 5 percent of adhesion promoter (Ganzhou Dajiang ST6610), and initiator (mass ratio 184: TPO (2: 4) 6% and a leveling agent (fluorocarbon Effka EFKA-3777) 0.5%, stirring at the stirring speed of 800rpm for 10min to mix the materials uniformly, then stirring at the stirring speed of 1200rpm for 30min, standing, defoaming (standing for defoaming), filtering, and preparing the roller coating UV white primer.
Sanding the substrate coated with the UV putty, respectively coating the UV white primers obtained in the embodiments 1-8 into films by using common forward and reverse roller equipment, wherein the obtained paint films are very flat, good in covering power and good in flexibility, after curing, respectively testing the adhesive force between the UV white primers and the UV putty layers and the wettability of 3D printing UV ink on the UV white primers, finally printing 3D images, curing to obtain 3D printing decorative plates, and testing the adhesive force between the 3D printing images of the 3D printing decorative plates and the UV white primers.
The adhesive force between paint film layers is tested by adopting a lattice method according to GB/T17657 and 2013 test method for ideal chemical performance of artificial boards and decorative artificial boards, the adhesive force is preferably 0 grade, and is arranged in sequence, and the worst is 5 grades; the wettability of the 3D printing UV ink on a plate is tested, and when the contact angle of the UV ink is more than 90 degrees, the wettability of the 3D printing U V ink on a UV white primer is poor by adopting a contact angle method and referring to ASTM D7490-13 Standard test method for measuring the surface tension of solid paint, base material and pigment by using a contact angle measurement method; when the contact angle of the UV ink is smaller than 90 degrees, the UV white primer can be wetted by the UV ink for 3D printing; when the contact angle of the UV ink is smaller, the UV white primer is easier to be wetted by the 3D printing UV ink, the spreading performance of the 3D printing UV ink on the UV white primer is good, and the imaging effect is good. FIGS. 1-8 are graphs of the contact angles of UV inks for 3 base colors (red, yellow, blue) tested in examples 1-8, respectively. The results of the related tests for adhesion and contact angle are shown in table 1.
TABLE 1UV white primer Performance test results
Analysis table 1 shows that the wettability of the UV inks of the base colors in examples 1, 2, 3 and 8 is better than that of the UV white primers of 4 types, and the 3D printed image has a good imaging effect, which indicates that the leveling property of the UV white primer is improved by using the acrylic and fluorocarbon leveling agents in the examples, and the wettability of the UV ink to the UV white primer is not affected; the adhesion between the layers of the embodiment 1, the embodiment 2 and the embodiment 8 is between 0 and 1 grade, but the adhesion of the embodiment 3 is 2 grade, which shows that the adhesion promoter is added to obviously improve the adhesion between the product and the upper and lower layers; examples 4, 5, 6 and 7 all had an interlayer adhesion of 0 to 1 grade, and the use of the silane-based wetting and leveling agent improved the leveling property of the UV white primer, but the wettability of the 3 base color UV inks to the 4 UV white primers was poor, and it was shown that the larger the amount of the silane-based wetting and leveling agent added, the smaller the amount of the wetting resin added (as in example 7), the poorer the wettability of the UV inks to the 4 UV white primers, the less clear the image of the 3D printed coating, and the poor image forming effect.
The present invention has been described in detail with reference to the examples, but the present invention is only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. A roller coating UV white primer with excellent UV ink wettability is characterized in that: the white primer comprises the following components in percentage by mass: 10-30% of modified epoxy acrylate, 10-30% of aliphatic polyester acrylate, 30-55% of white slurry, 0-5% of adhesion promoter, 3-8% of initiator and 0.01-1.0% of flatting agent.
2. The roll coated UV white primer according to claim 1, characterized in that: the white pulp comprises the following components: 10 to 30 percent of active diluent, 0.2 to 1.5 percent of dispersant and 60 to 80 percent of white pigment.
3. The roll coated UV white primer according to claim 1, characterized in that: the modified epoxy acrylate is Dismann agiSynTM3050、AgiSynTM3055、AgiSynTM3020-A80; the aliphatic polyester acrylate is one of Zhanxin EBECRYL571 and Guangzhou Lijun new material LJ-1235.
4. The roll coated UV white primer according to claim 1, characterized in that: the adhesion promoter is one or two of methacrylate phosphate and pure acrylate.
5. The roll coated UV white primer according to claim 1, characterized in that: the flatting agent is one or more of fluorocarbon, polyacrylate and organic silicon.
6. The roll coated UV white primer according to claim 1, characterized in that: the initiator is one or more of 1-hydroxy-cyclohexyl-phenyl ketone, 2-hydroxy-2-methyl-1-phenyl-1-acetone, 2,4,6- (trimethylbenzoyl) diphenyl phosphine oxide, phenyl bis (2,4, 6-trimethylbenzoyl) phosphine oxide and benzophenone.
7. The roll coated UV white primer according to claim 2, characterized in that: the active diluent is one or more of tripropylene glycol diacrylate, trimethylolpropane triacrylate, 1, 6-hexanediol diacrylate and hydroxyethyl methacrylate.
8. The roll coated UV white primer according to claim 2, characterized in that: the dispersant is one or more of Bike Disper byk-111, Disper byk-105 and digao Dispers 652; the white pigment is one or more of lithopone, titanium dioxide, zinc sulfide and zinc oxide.
9. A preparation method of a roller coating UV white primer with UV ink wettability is characterized by comprising the following steps: (1) respectively weighing 10-30% of active diluent, 0.2-1.5% of dispersant and 60-80% of white pigment according to the mass percent, and grinding until the fineness reaches below 5-20um to prepare white slurry; (2) and then taking 30-55% of white slurry, 10-30% of modified epoxy acrylate, 10-30% of aliphatic polyester acrylate, 0-5% of adhesion promoter, 3-8% of initiator and 0.01-1.0% of flatting agent, fully stirring the materials, standing, defoaming and filtering to obtain the roller coating UV white primer.
10. The roll coated UV white primer according to claim 9, characterized in that: after the components are added, the mixed materials are fully stirred for 5-20min at the stirring speed of 500 plus 1000rpm, after uniform mixing, the mixed materials are fully stirred for 10-40min at the stirring speed of 1000 plus 1500rpm, and after standing, defoaming and filtering, the roller coating UV white primer is obtained.
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