CN116694224B - Radiation-cured solid-color matte skin-feel coating - Google Patents
Radiation-cured solid-color matte skin-feel coating Download PDFInfo
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- CN116694224B CN116694224B CN202310726506.XA CN202310726506A CN116694224B CN 116694224 B CN116694224 B CN 116694224B CN 202310726506 A CN202310726506 A CN 202310726506A CN 116694224 B CN116694224 B CN 116694224B
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- 238000000576 coating method Methods 0.000 title claims abstract description 76
- 239000011248 coating agent Substances 0.000 title claims abstract description 72
- 239000011347 resin Substances 0.000 claims abstract description 38
- 229920005989 resin Polymers 0.000 claims abstract description 38
- 230000037303 wrinkles Effects 0.000 claims abstract description 22
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims description 36
- -1 aldehyde ketone Chemical class 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 19
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 18
- 206010040954 Skin wrinkling Diseases 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 15
- 239000000178 monomer Substances 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 10
- VOBUAPTXJKMNCT-UHFFFAOYSA-N 1-prop-2-enoyloxyhexyl prop-2-enoate Chemical compound CCCCCC(OC(=O)C=C)OC(=O)C=C VOBUAPTXJKMNCT-UHFFFAOYSA-N 0.000 claims description 10
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 238000000016 photochemical curing Methods 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 8
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 239000011094 fiberboard Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 6
- 150000003512 tertiary amines Chemical class 0.000 claims description 6
- KNSXNCFKSZZHEA-UHFFFAOYSA-N [3-prop-2-enoyloxy-2,2-bis(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical class C=CC(=O)OCC(COC(=O)C=C)(COC(=O)C=C)COC(=O)C=C KNSXNCFKSZZHEA-UHFFFAOYSA-N 0.000 claims description 5
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 5
- RBVLUTAXWVILBT-UHFFFAOYSA-N ethyl prop-2-eneperoxoate Chemical compound CCOOC(=O)C=C RBVLUTAXWVILBT-UHFFFAOYSA-N 0.000 claims description 4
- FAQJJMHZNSSFSM-UHFFFAOYSA-N phenylglyoxylic acid Chemical compound OC(=O)C(=O)C1=CC=CC=C1 FAQJJMHZNSSFSM-UHFFFAOYSA-N 0.000 claims description 4
- 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 3
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 3
- GHKADIDUAMVZKK-UHFFFAOYSA-N OCOC(=O)C=C.OCOC(=O)C=C.OCOC(=O)C=C Chemical compound OCOC(=O)C=C.OCOC(=O)C=C.OCOC(=O)C=C GHKADIDUAMVZKK-UHFFFAOYSA-N 0.000 claims description 3
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 239000012948 isocyanate Substances 0.000 claims description 3
- 150000002513 isocyanates Chemical class 0.000 claims description 3
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims 2
- 238000005292 vacuum distillation Methods 0.000 claims 1
- 239000002344 surface layer Substances 0.000 abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000003847 radiation curing Methods 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 230000005764 inhibitory process Effects 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 238000006116 polymerization reaction Methods 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 125000001302 tertiary amino group Chemical group 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 10
- 238000012360 testing method Methods 0.000 description 7
- 239000003973 paint Substances 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 238000001723 curing Methods 0.000 description 3
- 238000007259 addition reaction Methods 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- UTPYTEWRMXITIN-YDWXAUTNSA-N 1-methyl-3-[(e)-[(3e)-3-(methylcarbamothioylhydrazinylidene)butan-2-ylidene]amino]thiourea Chemical group CNC(=S)N\N=C(/C)\C(\C)=N\NC(=S)NC UTPYTEWRMXITIN-YDWXAUTNSA-N 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 230000002195 synergetic effect 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the technical field of coatings, and particularly relates to a radiation-cured solid-color matte skin-feel coating. The addition of the silica matting powder in the coating can significantly reduce the hardness and scratch and abrasion resistance of the matte coating. Aiming at the problems, the invention provides a radiation-cured solid-color matte skin-feel coating, which is added with the self-made 5-functionality photo-cured wrinkle resin, wherein the wrinkle resin structure contains rich tetraethoxy structure and tertiary amine structure, so that the oxygen polymerization inhibition phenomenon of the surface layer of the coating in the radiation curing process can be obviously reduced, the surface layer of the coating can be rapidly cured and contracted under the irradiation of a low-pressure UV mercury lamp with the wavelength of 254nm, micro wrinkles are formed on the surface of the coating, then the high-pressure mercury lamp with the medium-length wave band is adopted for irradiation, the micro wrinkle structure on the surface of the coating is fixed, and the solid-color matte skin-feel coating can be obtained.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a radiation-cured solid-color matte skin-feel coating.
Background
The commercial matte skin-feel decorative plate is mostly a Molan-di color skin-feel decorative plate, which is formed by sequentially compounding a color triamine paperboard attached to a wall surface, a transparent primer and a transparent skin-feel finish paint from bottom to top, wherein the color of the obtained decorative plate is at the bottommost layer, and the color is not layering or bright enough.
The matt skin-feel paint can be used as finishing paint of decorative plates, is a popular decorative paint in recent years, has excellent extremely matt luster, has the touch feel similar to the skin of infants and is attractive in scratch resistance, easy to repair and easy to clean, and is a top-up for decorative and finishing markets.
At present, a silicon dioxide extinction powder accounting for about 15-20% of the total mass of a coating is required to be added into a coating system to obtain a good matte skin effect, but the method can obviously reduce the crosslinking density of photosensitive resin and acrylic acid monomer, and the obtained coating is poor in hardness, scratch resistance and wear resistance and dry in touch feeling on the surface of the coating.
The invention successfully develops a solid-color matte skin-feel coating through formulation design and radiation of ultraviolet lamps with three wave bands, and self-made photo-curing wrinkle resin with 5 functionalities is added in the formulation, and the wrinkle resin molecular structure contains rich tetraethoxy structures and tertiary amine structures, so that the oxygen polymerization inhibition phenomenon of the coating surface layer in the radiation curing process can be obviously reduced, the coating surface layer can be rapidly cured and contracted under the radiation of a low-pressure UV mercury lamp with specific wavelength, micro wrinkles are formed on the coating surface, and then the micro wrinkles on the coating surface are fixed by the radiation of a high-pressure mercury lamp with medium and long wave bands, so that the matte skin-feel coating can be obtained.
Disclosure of Invention
The problems in the prior art are: commercially available matte skin feel coatings require the addition of a large amount of silica matting powder to the coating system to achieve a good matte skin feel effect, which can significantly reduce the hardness and scratch and abrasion resistance of the coating. Aiming at the problems, the invention provides a radiation-cured solid-color matte skin-feel coating which comprises the following components in parts by weight:
specifically, the photosensitive resin is a photo-curing wrinkle resin, and the preparation method comprises the following steps:
(1) Under the protection of nitrogen, adding 0.2mol of ethoxylated pentaerythritol tetraacrylate, 0.1g of hydroquinone and 150mL of dichloromethane into a four-necked flask, uniformly stirring, ensuring that the temperature of a reaction system is 10-15 ℃ in the whole reaction process, dropwise adding 0.2mol of diethanolamine (the diethanolamine and one of double bonds of the ethoxylated pentaerythritol tetraacrylate are subjected to addition reaction) into the reaction system while stirring, stirring for 45 hours after the dropwise adding is completed, and vacuum distilling to remove residual dichloromethane in the reaction system to obtain tertiary amine ethoxyacrylate;
(2) Under the protection of nitrogen, 70g of tertiary amine type ethoxyacrylate is added into a 1000mL four-neck flask, then 0.05g of dibutyltin dilaurate is added, then the temperature of a reaction system is slowly increased to 70-75 ℃, at this time, IPDI is added into the reaction system in a dropwise adding and stirring mode, FITR is adopted to monitor the reaction, stirring is carried out until the absorption peak of hydroxyl in the reaction system disappears, HEA is added into the reaction system in a dropwise adding mode, FITR is adopted to monitor the reaction, stirring is carried out until the absorption peak of isocyanate in the reaction system disappears, and the reaction is finished, thus obtaining the photocuring wrinkle resin with 5 functionality.
Specifically, the aldehyde ketone resin liquid is a mixed liquid formed by dissolving solid aldehyde ketone resin in an acrylic acid monomer, and the mass ratio of the solid aldehyde ketone resin to the acrylic acid monomer is 1 (1-2).
Specifically, the acrylic monomer comprises at least one of hexanediol diacrylate and hydroxyethyl methacrylate.
Specifically, the aldehyde ketone resin liquid is prepared by dissolving and mixing the first KR-A81 and hexanediol diacrylate and hydroxyethyl methacrylate according to a mass ratio of 4:3:3.
Specifically, the reactive monomer is formed by blending at least one difunctional acrylic monomer with at least one trifunctional acrylic monomer.
Specifically, the active monomer consists of tripropylene glycol diacrylate and trimethylol triacrylate according to a mass ratio of 1:1.
Specifically, the solid paste is a UV solid paste.
Specifically, the UV solid paste comprises at least one color of red, yellow, blue, black and white.
Specifically, the photoinitiator is formed by compounding an acylphosphine oxide photoinitiator and a benzoyl formate photoinitiator, or is formed by compounding an acylphosphine oxide photoinitiator, a benzoyl formate photoinitiator and a thioxanthone photoinitiator.
Specifically, the auxiliary agent comprises an antifoaming agent, a wetting dispersant and a leveling agent.
The invention has the following beneficial effects:
(1) The self-made 5-functionality photo-curing wrinkle resin is added in the radiation-curing real-color matte skin-feel coating, the wrinkle resin structure contains rich tetraethoxy structure and tertiary amine structure, so that the oxygen polymerization inhibition phenomenon of the surface layer of the coating in the radiation curing process can be obviously reduced, the surface layer of the coating can be rapidly cured and contracted under the irradiation of a low-pressure UV mercury lamp with the wavelength of 254nm, micro wrinkles are formed on the surface of the coating, then the high-pressure mercury lamp with the medium and long wave bands is adopted for irradiation, the micro wrinkle structure on the surface of the coating is fixed, and the real-color matte skin-feel coating can be obtained;
(2) The radiation curing solid matte skin-feel coating is also added with aldehyde ketone resin liquid, the photo-curing wrinkle resin and the aldehyde ketone resin structure in the aldehyde ketone resin liquid generate a synergistic effect, the photo-curing wrinkle resin with high functionality can instantaneously release a large amount of heat in the UV curing process, the aldehyde ketone resin instantaneously absorbs a large amount of heat, rapid curing shrinkage film formation is realized, and the wrinkles on the surface layer of the obtained coating are finer, and the touch feeling is finer and smoother.
Detailed Description
The present invention will be described in detail with reference to examples. It is to be understood that the following examples are illustrative of embodiments of the present invention and are not intended to limit the scope of the invention.
The photosensitive resin in the following examples of the present invention was prepared as follows:
(1) Under the protection of nitrogen, adding 0.2mol of ethoxylated pentaerythritol tetraacrylate, 0.1g of hydroquinone and 150mL of dichloromethane into a four-necked flask, uniformly stirring, ensuring that the temperature of a reaction system is 10 ℃ in the whole reaction process, dropwise adding 0.2mol of diethanolamine (the diethanolamine and one of double bonds of the ethoxylated pentaerythritol tetraacrylate are subjected to addition reaction) into the reaction system while stirring, stirring for 45 hours after the dropwise adding is completed, and vacuum distilling to remove residual dichloromethane in the reaction system to obtain tertiary amine ethoxyacrylate;
(2) Under the protection of nitrogen, 70g of tertiary amine type ethoxyacrylate is added into a 1000mL four-neck flask, then 0.05g of dibutyltin dilaurate is added, then the temperature of a reaction system is slowly increased to 75 ℃, at this time, IPDI is added into the reaction system in a dropwise adding and stirring mode, FITR is adopted to monitor the reaction, stirring is carried out until the absorption peak of hydroxyl in the reaction system disappears, HEA is added into the reaction system in a dropwise adding and stirring mode, FITR is adopted to monitor the reaction, stirring is carried out until the absorption peak of isocyanate in the reaction system disappears, and the reaction is finished, thus obtaining the photocuring wrinkle resin with 5 functionality.
The reactive monomer in the following examples of the present invention consists of tripropylene glycol diacrylate and trimethylol triacrylate in a mass ratio of 1:1.
The auxiliary agent in the following examples of the invention consists of an antifoaming agent TEGO 920, a wetting dispersant BYK 163 and a leveling agent TEGO 432 according to a mass ratio of 1:1:1.
Example 1
The radiation-cured solid-color matte skin-feel coating comprises the following components in parts by weight:
The photoinitiator consists of TPO and MBF according to the mass ratio of 0.5:4;
The aldehyde ketone resin liquid is prepared by dissolving and mixing the first KR-A81 and hexanediol diacrylate and hydroxyethyl methacrylate according to a mass ratio of 4:4:4.
Example 2
The radiation-cured solid-color matte skin-feel coating comprises the following components in parts by weight:
the photoinitiator consists of TPO and ITX, MBF according to the mass ratio of 0.5:0.5:4;
the aldehyde ketone resin liquid is prepared by dissolving and mixing the first KR-A81 and hexanediol diacrylate and hydroxyethyl methacrylate according to a mass ratio of 4:2:2.
Example 3
The radiation-cured solid-color matte skin-feel coating comprises the following components in parts by weight:
The photoinitiator consists of TPO and MBF according to the mass ratio of 0.5:4;
The aldehyde ketone resin liquid is prepared by dissolving and mixing the first KR-A81 and hexanediol diacrylate and hydroxyethyl methacrylate according to a mass ratio of 4:4:4.
Example 4
The radiation-cured solid-color matte skin-feel coating comprises the following components in parts by weight:
the photoinitiator consists of TPO and ITX, MBF according to the mass ratio of 0.5:0.5:4;
The aldehyde ketone resin liquid is prepared by dissolving and mixing the first KR-A81 and hexanediol diacrylate and hydroxyethyl methacrylate according to a mass ratio of 4:4:4.
Example 5
The radiation-cured solid-color matte skin-feel coating comprises the following components in parts by weight:
the photoinitiator consists of TPO and ITX, MBF according to the mass ratio of 0.5:0.5:4;
the aldehyde ketone resin liquid is prepared by dissolving and mixing the first KR-A81 and hexanediol diacrylate and hydroxyethyl methacrylate according to a mass ratio of 4:3:3.
Specific application
(1) Coating the coating obtained in the embodiments 1-5 on the surface of a medium density fiberboard with a smooth and clean surface, and then placing the medium density fiberboard under an LED UV lamp with the wavelength of 395nm for irradiation, wherein the energy is 80-120mj/cm 2, so as to obtain a gelled coating with the thickness of 25 mu m;
(2) The gelled coating obtained in the step (1) is irradiated under a low-pressure UV mercury lamp (the penetrating power is only about 20-100 nm) with the wavelength of 254nm, the energy is 70-90mj/cm 2, the shallow surface layer of the gelled coating can be rapidly cured and shrunk severely, a wrinkle structure is generated, and the pre-cured matte skin-feel coating is obtained;
(3) And (3) placing the pre-cured matte skin-feel wrinkle coating obtained in the step (2) under a high-pressure mercury lamp with the wavelength of 365nm for irradiation, so that the whole coating is completely cured, and the energy is 400-600mj/cm 2, thus obtaining the solid matte skin-feel coating.
Comparative example 1 the difference from example 1 is that comparative example 1 was different in the manner of curing the radiation-curable solid-color matt skin-feel coating obtained in example 1, and comparative example 1 was employed in the manner of curing as follows:
(1) Coating the coating obtained in the embodiment 1 of the invention on the surface of a medium density fiberboard with a smooth and clean surface, and then placing the medium density fiberboard under an LED UV lamp with the wavelength of 395nm for irradiation, wherein the energy is 80-120mj/cm 2, so as to obtain a gelled coating with the thickness of 25 mu m;
(2) And (3) placing the gelled coating obtained in the step (1) under a high-pressure mercury lamp with the wavelength of 365nm for irradiation, so that the whole coating is completely solidified, the energy is 400-600mj/cm 2, and the obtained coating has no matte effect.
Comparative example 2 the same as example 1, except that the aldehyde ketone resin liquid used in comparative example 2 was prepared by dissolving and mixing solid aldehyde ketone resin longtai CT 120B with hexanediol diacrylate and hydroxyethyl methacrylate in a mass ratio of 4:4:4.
Comparative example 3 the same as example 1, except that the aldehyde ketone resin liquid used in comparative example 3 was prepared by dissolving and mixing Setai KR-A81 with hexanediol diacrylate and hydroxyethyl methacrylate in a mass ratio of 1:1:2.
Comparative example 4 the same as in example 1, except that the aldehyde ketone resin liquid was not added in comparative example 4.
Performance testing
The solid-color matte skin-feel coatings obtained in examples 1 to 5 and comparative examples 1 to 4 of the present invention were subjected to the relevant performance test, and the specific test results are shown in table 1.
Wherein, scratch resistance and wear resistance: the test standard is ASTM D4060-14.
Coefficient of friction: the test standard is ATSM D1894-01, and the friction coefficient of the coating surface can reflect the smooth and fine touch feeling of the coating surface, and the smaller the friction coefficient is, the finer and smooth the coating is.
Gloss level: the test standard is GB 1743-1989, 60℃angle of incidence measurement.
Touch feeling: back of hand touch.
Hardness: the test standard is GB/T6739-1996.
Adhesion force: the test standard is GB/T9286-1998.
TABLE 1
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (6)
1. The radiation-cured solid-color matte skin-feel coating is characterized by comprising the following components in parts by weight:
30-50 parts of photosensitive resin;
15-30 parts of aldehyde ketone resin liquid;
20-50 parts of active monomer;
20-30 parts of solid color paste;
2-8 parts of a photoinitiator;
2-5 parts of auxiliary agent;
the preparation method of the photosensitive resin is characterized in that the photosensitive resin is a photo-curing wrinkle resin, and the preparation method comprises the following steps:
(1) Under the protection of nitrogen, adding 0.2mol of ethoxylated pentaerythritol tetraacrylate, 0.1g of hydroquinone and 150mL of dichloromethane into a four-necked flask, uniformly stirring, ensuring that the temperature of a reaction system is 10-15 ℃ in the whole reaction process, dropwise adding 0.2mol of diethanolamine into the reaction system while stirring, stirring for reacting for 45h after the dropwise adding is completed, and removing residual dichloromethane in the reaction system by vacuum distillation to obtain tertiary amine type ethoxyacrylate;
(2) Under the protection of nitrogen, adding 70g of tertiary amine type ethoxyacrylate into a 1000mL four-neck flask, then adding 0.05g of dibutyltin dilaurate, then slowly raising the temperature of a reaction system to 70-75 ℃, at this time, adding IPDI into the reaction system in a dropwise adding and stirring mode, monitoring the reaction by FITR until the absorption peak of hydroxyl in the reaction system disappears, then adding HEA into the reaction system in a dropwise adding and stirring mode, monitoring the reaction by FITR, stirring until the absorption peak of isocyanate in the reaction system disappears, and ending the reaction to obtain the photocuring wrinkle resin with 5 functionalities;
The aldehyde ketone resin liquid is prepared by dissolving and mixing the first advocate KR-A81 and hexanediol diacrylate and hydroxyethyl methacrylate according to a mass ratio of 4:3:3;
the application of the radiation-cured solid-color matte skin-feel coating is as follows:
(1) Coating a radiation-cured solid-color matte skin-feel coating on the surface of a medium density fiberboard with a smooth and clean surface, and then placing the medium density fiberboard under an LED UV lamp with the wavelength of 395nm for irradiation, wherein the energy is 80-120mj/cm 2, so as to obtain a gelled coating;
(2) The gelled coating obtained in the step (1) is placed under a low-pressure UV mercury lamp with the wavelength of 254nm for irradiation, and the energy is 70-90mj/cm 2, so that a pre-cured matte skin-feel coating is obtained;
(3) And (3) placing the pre-cured matte skin-feel coating obtained in the step (2) under a high-pressure mercury lamp with the wavelength of 365nm for irradiation, so that the whole coating is completely cured, and the energy is 400-600mj/cm 2, thus obtaining the solid-color matte skin-feel coating.
2. The radiation curable solid color matt skin feel coating according to claim 1, wherein said reactive monomer is blended from at least one difunctional acrylic monomer and at least one trifunctional acrylic monomer.
3. The radiation-cured solid matte skin feel coating according to claim 2, wherein the reactive monomer consists of tripropylene glycol diacrylate and trimethylol triacrylate in a mass ratio of 1:1.
4. The radiation curable solid color matt skin feel coating according to claim 1, wherein said solid color paste is UV solid color paste.
5. The radiation curable solid color matt skin feel coating according to claim 4, wherein said UV solid color paste comprises at least one of red, yellow, blue, black, white.
6. The radiation-curable solid-color matt skin-feel coating according to claim 1, wherein the photoinitiator is compounded by an acylphosphine oxide photoinitiator and a benzoyl formate photoinitiator or compounded by an acylphosphine oxide photoinitiator, a benzoyl formate photoinitiator and a thioxanthone photoinitiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310726506.XA CN116694224B (en) | 2023-06-19 | 2023-06-19 | Radiation-cured solid-color matte skin-feel coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310726506.XA CN116694224B (en) | 2023-06-19 | 2023-06-19 | Radiation-cured solid-color matte skin-feel coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116694224A CN116694224A (en) | 2023-09-05 |
| CN116694224B true CN116694224B (en) | 2024-06-18 |
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