CN102408827A - Aqueous ultraviolet-curing transparent prime coat and preparation method thereof - Google Patents
Aqueous ultraviolet-curing transparent prime coat and preparation method thereof Download PDFInfo
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- CN102408827A CN102408827A CN2011103444439A CN201110344443A CN102408827A CN 102408827 A CN102408827 A CN 102408827A CN 2011103444439 A CN2011103444439 A CN 2011103444439A CN 201110344443 A CN201110344443 A CN 201110344443A CN 102408827 A CN102408827 A CN 102408827A
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- 238000002360 preparation method Methods 0.000 title abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 239000011347 resin Substances 0.000 claims abstract description 43
- 229920005989 resin Polymers 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000011521 glass Substances 0.000 claims abstract description 17
- 239000003085 diluting agent Substances 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910021485 fumed silica Inorganic materials 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 16
- 239000000080 wetting agent Substances 0.000 claims description 16
- 239000002562 thickening agent Substances 0.000 claims description 15
- 230000000844 anti-bacterial effect Effects 0.000 claims description 13
- 239000003899 bactericide agent Substances 0.000 claims description 13
- 239000002518 antifoaming agent Substances 0.000 claims description 12
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical group CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 10
- 239000004814 polyurethane Substances 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000012467 final product Substances 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 4
- -1 pH regulator Substances 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 claims description 2
- XMLYCEVDHLAQEL-UHFFFAOYSA-N 2-hydroxy-2-methyl-1-phenylpropan-1-one Chemical group CC(C)(O)C(=O)C1=CC=CC=C1 XMLYCEVDHLAQEL-UHFFFAOYSA-N 0.000 claims 1
- 239000000454 talc Substances 0.000 claims 1
- 229910052623 talc Inorganic materials 0.000 claims 1
- 235000012222 talc Nutrition 0.000 claims 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract description 54
- 238000010276 construction Methods 0.000 abstract description 20
- 238000005507 spraying Methods 0.000 abstract description 20
- 238000007761 roller coating Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000006757 chemical reactions by type Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000009965 odorless effect Effects 0.000 abstract 1
- 238000001723 curing Methods 0.000 description 30
- 238000000576 coating method Methods 0.000 description 29
- 239000000047 product Substances 0.000 description 28
- 239000011248 coating agent Substances 0.000 description 18
- 230000000694 effects Effects 0.000 description 16
- 239000003973 paint Substances 0.000 description 13
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 12
- 239000007787 solid Substances 0.000 description 11
- 102100026735 Coagulation factor VIII Human genes 0.000 description 8
- 101000911390 Homo sapiens Coagulation factor VIII Proteins 0.000 description 8
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 239000004721 Polyphenylene oxide Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 229920000570 polyether Polymers 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000004383 yellowing Methods 0.000 description 5
- SLBAEZGCKDEGLB-UHFFFAOYSA-N 3-benzyl-1,2-thiazol-4-one Chemical compound O=C1CSN=C1CC1=CC=CC=C1 SLBAEZGCKDEGLB-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 239000013530 defoamer Substances 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- 238000000016 photochemical curing Methods 0.000 description 3
- 230000009967 tasteless effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- 229940058020 2-amino-2-methyl-1-propanol Drugs 0.000 description 2
- FNYRDZWXWVEYRR-UHFFFAOYSA-N 5-methyl-3-propan-2-yl-1,2-thiazol-4-one Chemical compound CC1C(C(=NS1)C(C)C)=O FNYRDZWXWVEYRR-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical group [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- DHNRXBZYEKSXIM-UHFFFAOYSA-N chloromethylisothiazolinone Chemical compound CN1SC(Cl)=CC1=O DHNRXBZYEKSXIM-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 241000718131 Cercopithecus kandti Species 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- FZUGPQWGEGAKET-UHFFFAOYSA-N parbenate Chemical compound CCOC(=O)C1=CC=C(N(C)C)C=C1 FZUGPQWGEGAKET-UHFFFAOYSA-N 0.000 description 1
- LFGREXWGYUGZLY-UHFFFAOYSA-N phosphoryl Chemical group [P]=O LFGREXWGYUGZLY-UHFFFAOYSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Paints Or Removers (AREA)
Abstract
The present invention relates to an aqueous ultraviolet-curing transparent prime coat and a preparation method thereof. The transparent prime coat comprises the following components, by weight, 40-60% of an aqueous ultraviolet resin, 30-45% of an aqueous ultraviolet wear resistance resin, 3-10% of an aqueous reaction type diluent agent, 3-15% of talc powder, 1-10% of glass powder, 0.5-1.0% of fumed silica, 1.0-3.0% of benzene-free photoinitiator and 1-2% of water. According to the present invention, the transparent prime coat of the present invention is a functional product with excellent environmental protection performance, wherein the benzene content is low before or after the transparent prime coat construction; the transparent prime coat of the present invention is odorless, can be directly diluted with the water, and can be applicable for the spray coating process and the roller coating process; the hardness of the transparent prime coat is more than 3H, and the water resistance of the transparent prime coat meets requirements of the three-level water in GB\T6682.
Description
Technical Field
The invention relates to a coating for a wooden product, in particular to a waterborne ultraviolet curing transparent primer for the wooden product and a preparation method thereof.
Background
Ultraviolet (UV) curing coatings develop rapidly due to the advantages of short recoating time, high production efficiency and the like. However, aqueous UV coatings are expensive. The construction process can only adopt the defects of roller coating process or single spraying and coating process construction and the like. Meanwhile, systematic analysis and experimental detection are carried out on resin raw materials commonly used in the existing UV light curing technology, and the knowledge of regularity is summarized by combining the experimental data of customers, wherein a compound generates a benzene mechanism in the formula and the light curing process, and some compounds contain benzene before being irradiated by light and are not increased after being irradiated by light; it is said that benzene remains or is contaminated in the manufacturing process, and if benzene is used as a raw material, it is difficult to completely remove benzene. Some compounds do not contain benzene before illumination, but the benzene content is increased after illumination, which indicates that the compound is unstable to light and can decompose free benzene molecules. Most of the photoinitiators contain one or two monosubstituted benzene rings in the structure, are connected with carbonyl (or phosphoryl) and have high cleavability, so that free benzene molecules are released, and the environment is greatly influenced. In addition, the hardness of the water-based UV transparent primer reaches more than 3H according to the national standard detection (GB \ T1730-1993, chapter 4 tests). In the current hardness, except that the (UV, AC) coating has this hardness above the hardness. The water resistance is tested according to the GB \ T9274 medium A method, and can meet the requirement of the GB \ T6682 medium-grade water. The technology of aqueous and aqueous UV products is still a gap in the industry.
There are also some reports in the aspect of aqueous photocurable coatings in China:
chinese patent application CN200810202791.0 (08 years' patent for short) discloses a water-based ultraviolet-curing high-solid-content transparent middle-coating primer and a preparation method thereof, wherein the primer contains 60-87% of water-based ultraviolet-curing resin, 3-10% of water-based reactive diluent, 3-15% of talcum powder, 1-10% of calcium carbonate, 0.5-1.0% of fumed silica, 1.0-3.0% of photoinitiator and 1-2% of water, the water-based ultraviolet-curing resin and the water-based reactive diluent are uniformly mixed, then the water-based photoinitiator is added and uniformly mixed to prepare the water-based photocuring coating, the defect water-based ultraviolet-curing resin of the patent has the characteristics of high solid content and the like, and the water-based ultraviolet-curing resin of the patent cannot meet the requirements of client construction in the aspects of fullness and yellowing resistance, and cannot meet the requirements of water in the third-level water in GB/T6682 in, the operation of tap water causes that the sterilization of the coating can not meet the sterilization requirement, and the main coating process can not use the coating production process of using the same product by spraying or rolling.
Therefore, the invention needs to invent a dual-purpose water-based ultraviolet curing transparent primer which can be used for the processes of spraying coating and roller coating of wooden products with complicated shapes, flat plates and the like, and has particularly good surface effect (hardness, adhesive force and water resistance) reaching the effect of oil coating.
Disclosure of Invention
The invention aims to provide a water-based ultraviolet curing transparent primer and a preparation method thereof, which overcome the defects in the prior art and meet the requirements of related industries.
The invention provides a water-based ultraviolet-curing transparent primer which comprises the following components in percentage by weight:
in the above-mentioned aqueous ultraviolet-curable transparent primer:
the aqueous ultraviolet resin is an aqueous polyurethane acrylic acid dispersoid;
the water-based ultraviolet light wear-resistant resin is a high-hardness ultraviolet light water-based polyester acrylic acid dispersoid.
The aqueous reactive diluent is beta-hydroxyethyl methacrylate (HEMA) and/or beta-hydroxyethyl acrylate (HEA).
The particle size of the talcum powder is 1250-2500 meshes, and the polishing performance during construction can be improved in a construction coating process.
The particle size of the glass powder is 2500-3000 meshes, the glass powder cannot generate a whitening phenomenon when added into a primer, and the main function of the glass powder can be to increase the hardness and the scratch resistance of a paint film of the paint. The photoinitiator has a molecular structure of a benzene-free photoinitiator, has low odor, low volatilization and low yellowing, has active hydroxyl ethoxy-terminated hydroxyl, can participate in a crosslinking reaction, is better than (ITX + EDAB) and BDK in use as a sensitizer, and has much lower odor than a parent compound 1173 in photocuring performance.
The water-based ultraviolet curing transparent primer also comprises one or more of 0.1-0.5% of defoaming agent, 0.1-0.2% of bactericide, 0.1-0.2% of wetting agent, 0.1-0.5% of PH value regulator or 0.1-0.5% of thickening agent.
Wherein,
the defoaming agent is a polysiloxane-polyether copolymer defoaming agent;
the bactericide is a formaldehyde condensate, methyl isopropyl isothiazolinone, a mixture of benzyl isothiazolinone and formaldehyde condensate, BIT benzyl isothiazolinone and a CMIT/BIT/organic bromine composition;
the wetting agent is a polysiloxane-polyether copolymer wetting agent;
both the defoamer and the wetting agent are polysiloxane-polyether copolymers, but the difference is that the former is poor in hydrophilicity and the latter is good in hydrophilicity;
the pH regulator is ammonia water or organic amine, preferably 2-amino-2-methyl-1-propanol;
the thickening agent is a polyurethane associative thickening agent.
The invention also provides a preparation method of the water-based ultraviolet curing transparent primer, which comprises the following steps:
1) uniformly mixing the aqueous ultraviolet resin and the aqueous active diluent, adding talcum powder, glass powder and fumed silica while stirring, uniformly stirring, and dispersing at a high speed for 10-15 minutes;
2) adding a photoinitiator and a defoaming agent, and dispersing at medium speed for 5-10 minutes;
3) adding bactericide, wetting agent, pH regulator, thickener and water, stirring, regulating pH to 8-9, and adjusting viscosity to 40-60KU/25 deg.C to obtain the final product.
The application method of the water-based ultraviolet curing transparent primer mainly comprises coating processes such as spraying, roller coating and the like.
When the invention is used, the following matters need to be noted:
1. before construction, proper sand paper is selected for sanding the board to obtain a fine surface.
2. After construction, the product can pass through ultraviolet light after completely volatilizing moisture at normal temperature or under a baking condition.
The water-based ultraviolet light spraying transparent primer has the following advantages:
1) the primer is prepared from two resins, wherein the chemical names of the water-based ultraviolet light resin and the water-based ultraviolet light wear-resistant resin are water-based ultraviolet light curing acrylic resin, and the water-based ultraviolet light curing acrylic resin has low shrinkage, high toughness and drying acceleration effect.
The technology for combining the two resins in the prior coating technology is also a blank, and at the moment, the two resins cannot be combined mainly because the compatibility of the water-based ultraviolet light wear-resistant resin and the water-based ultraviolet light resin always troubles the development of the technology, the wear-resistant performance is really good at the moment, but the compatibility has the phenomenon of turbid surface of a paint film. The surface effect after construction has a bad effect of blooming, so that the technical bottleneck is not broken all the time. At present, resin manufacturers have a new breakthrough in compatibility and surface effect.
The combination of the two resins avoids the side effects of poor adhesive force and the like caused by excessive acid catalyst in the former formula, namely, the drying is promoted while the baking temperature can be slightly reduced, and the main diluent of the formula in the coating industry of the water-based UV is water, so that the hardness, scratch resistance and wear resistance are poor. The waterborne ultraviolet light wear-resistant resin and the waterborne ultraviolet light resin are matched for use only in the aspect of selecting the resin, so that the performance of the product is not influenced, and the effects of the surface wear-resistant performance, the water resistance, the sinking prevention and the like of the wooden product are improved.
With the development of the industry, many wood product manufacturers and final consumers are aware of the defects that the currently used waterborne UV products (hardness cannot reach the standard, abrasion resistance is poor, and sinking is serious) cannot be accepted along with the performance indexes of the traditional coatings (PU, PE, UV and NC), and customers require that the product performance of the waterborne UV can be equal to each performance of the traditional coatings. For example, the performances of the paint in the aspects of hardness, wear resistance, water resistance, sinking prevention, surface effect and the like are almost the same as those of the traditional paint, the particle size and the dosage of the talcum powder and the glass powder also influence the transparency and the hardness of the paint, and the dispersibility of the glass powder can be directly influenced in the process of dispersing the paint formula. The smaller the particle size, the better the recoatability. The smaller the particle size, the better the dispersibility. If the dispersibility is poor, the glass powder with large particle size of the coating formula is easy to generate precipitation phenomenon, so the particle size and the dosage of the talcum powder and the glass powder are limited.
2) Compared with a roller coating product, the viscosity of the spraying series product is slightly lower, and when the roller coating product is used for spraying, the roller coating product is inferior to the spraying product in the aspects of leveling, adhesive force, grinding property, surface effect and the like. The roller coating product is different from the spraying product, so that the performance of the coating is still to be improved, and in order to overcome the difficulty in the prior art, the inventor makes corresponding adjustment on the formula of the product;
the primer provided by the invention can be used as a transparent primer for water-based UV furniture spraying and roller coating processes, has excellent scratch resistance and leveling effect, flat board surface and effect which is not inferior to that of oil paint, can be directly diluted by water, is constructed by adopting spraying, roller coating and other coating processes, can be used for coating on complex-shaped furniture, and can also be used for roller coating and other process operations.
3) The primer provided by the invention is cured by ultraviolet light, the hardness of the primer reaches more than 3H (tested by GB \ T1730-1993), the fullness is good, the yellowing resistance is good, the solid content is high, the transparency is good, and the water resistance meets the requirement of third-grade water in GB/T6682.
4) The product of the invention is an environment-friendly product with excellent environmental protection performance and the benzene content of mg/M before and after construction2Functional products with effect of not more than 0.003, almost tasteless. Ultraviolet light curing, and short construction period. Ultraviolet light is adopted for curing, the paint also conforms to GB18582-2009 and GB/T9756-2009 except that the construction period is short, toxic and harmful substances such as triphenyl, formaldehyde, free TDI and the like are not contained, and the content of heavy metal is far lower than the European standard.
5) Compared with the prior art, the transparent primer disclosed by the invention has the advantage that the waterborne ultraviolet light wear-resistant resin can be crosslinked in the formula to participate in the reaction.
Detailed Description
The following examples are intended to illustrate the invention but should not be construed as limiting the scope thereof.
The invention provides a water-based ultraviolet-curing transparent primer which comprises the following components in percentage by weight:
the water-based ultraviolet curing spray transparent primer provided by the invention also contains one or more of 0.1-0.5% of defoaming agent, 0.1-0.2% of bactericide, 0.1-0.2% of wetting agent, 0.1-0.5% of pH value regulator or 0.1-0.5% of thickening agent.
Wherein:
the water-based ultraviolet resin is a water-based polyurethane acrylic dispersion, mainly has the function of improving the construction performance and the adhesive force between a water-based coating and a solvent-based ultraviolet curing coating, and can adopt UV LS2348 of BAYER company or U-301W of BASF company;
the aqueous ultraviolet light wear-resistant resin is an aqueous ultraviolet light cured dispersoid, the main function of the aqueous ultraviolet light cured dispersoid is to improve the hardness and wear resistance of a paint film, the main component of the aqueous ultraviolet light cured resin is a high-hardness ultraviolet light aqueous polyester acrylate dispersoid which has quite excellent adhesive force to a base material, and the aqueous ultraviolet light cured resin can adopt SU-N78 of Bayer company;
the aqueous reactive diluent is methacrylic acid-beta-Hydroxyethyl (HEMA) or acrylic acid-beta-Hydroxyethyl (HEA); or by using HEMA \ HEA from Kedi;
the particle size of the talcum powder is 1250 meshes, such as TP1250 of Guilin Xinhuahui chemical company;
the particle size of the glass powder is 3000 meshes, and JG3000 of Nanhai golden monkey chemical industry can be adopted;
the molecular structure of the benzene-free photoinitiator contains deodorized alkoxy, so that the photocuring performance of the benzene-free photoinitiator is much lower than that of a parent compound 1173, such as IHT-PI6022 of Beijing England scientific and technological development Limited company;
the defoamer is a polysiloxane-polyether copolymer defoamer, such as TEGO810 from TEGO corporation;
the bactericide is one of bactericide selected from formaldehyde condensate, methyl isopropyl isothiazolinone, benzyl isothiazolinone and formaldehyde condensate mixture, BIT benzyl isothiazolinone and CMIT/BIT/organic bromine composition, such as K-20 of Shumei company in Germany;
the wetting agent is a polysiloxane-polyether copolymer wetting agent, such as TEGO245 from TEGO corporation;
both the defoamer and the wetting agent are polysiloxane-polyether copolymers, but the difference is that the former is less hydrophilic and the latter is more hydrophilic.
The pH regulator is ammonia water or organic amine, preferably 2-amino-2-methyl-1-propanol, such as AMP-95 (America Ampere Co., Ltd.);
the thickener is polyurethane associated thickener, which is obtained by polymerizing mass polyurethane associated thickener with isophorone diisocyanate (IPD I) and polyethylene glycol with certain relative molecular mass, such as PU40 of Germany Minglin company.
Example 1: water-based ultraviolet-curing spraying transparent primer
1. The raw materials comprise the following components:
| composition of | Content (weight percentage: 100%) |
| Water-based ultraviolet resin UV LS2348 (solid content 98%) | 42 |
| Water-based ultraviolet light wear-resistant resin SU-N78 | 38 |
| Reactive diluent HEMA | 6 |
| Talcum powder (grain size 1250 mesh) | 5 |
| Glass powder (particle size 3000 mesh) | 4 |
| Fumed silica A200 | 0.5 |
| Benzene-free photoinitiator IHT-PI6022 | 2.0 |
| Antifoaming agent TEGO810 | 0.1 |
| Bactericide K-20 | 0.2 |
| Wetting agent TEGO245 | 0.2 |
| PH regulator AMP-95 | 0.2 |
| Thickener PU40 | 0.2 |
| Water (W) | 1.6 |
| Total up to | 100 |
2. The preparation method comprises the following steps:
1) firstly, adding UV LS2348, SU-N78 and HEMA into a cylinder, dispersing for 10 minutes at a medium speed, then adding TP1250, JG3000 and A200 under stirring, and dispersing for 15 minutes at a high speed after uniformly stirring;
2) dispersing the photoinitiators IHT-PI6022 and TEGO810 at a medium speed for 10 minutes;
3) adding K-20, TEGO245, AMP-95, PU40 and water, stirring, adjusting pH to 8-9, and adjusting viscosity to 40-60KU/25 deg.C to obtain the final product.
3. The detection results are as follows:
| index (I) | Results | Method of producing a composite material |
| Solid content | 97.5％ | GB/T1725-79 (second method) |
| Appearance of the product | Milky white semifluid | GB 1727-79 |
| Fineness of fineness | ≤45um | GB/T1724-1979 |
| Adhesion force | Level 1 | GB/T9286-1979 |
| Water resistance | Grade 3 | GB\T6682 |
| Hardness of | 3H | GB\T1730-1993 |
| Sanding property | No sand adhesion phenomenon exists in both No. 320 and No. 400 | |
| Benzene content mg/m2 | 0.003 | YC/T207-2006 |
| Transparency | Is transparent | |
| Construction method | Spraying and roller painting | |
| Coating amount | 80-100g/m2 | |
| Curing energy | 200±50mg/cm2 |
The results show that: the transparent primer of the embodiment adoptsUltraviolet light curing, the hardness of the paint reaches more than 3H (tested by GB \ T1730-1993), the paint has good fullness, good yellowing resistance, high solid content and good transparency, meanwhile, the water resistance meets the requirement of third-level water in GB/T6682, and the benzene content is mg/M before and after construction2The functional product with the effect of not higher than 0.003 is almost tasteless, does not contain toxic and harmful substances such as triphenyl, formaldehyde, free TDI and the like, and has the heavy metal content far lower than the European standard.
Example 2: water-based ultraviolet-curing spraying transparent primer
1. The raw materials comprise the following components in percentage by weight:
| composition of | Content (weight percentage: 100%) |
| Aqueous ultraviolet resin U-301W (solid content 95%) | 54 |
| Water-based ultraviolet light wear-resistant resin SU-N78 | 30 |
| Reactive diluent HEMA | 3 |
| Talcum powder (grain size 1250 mesh) | 5 |
| Glass powder (particle size 3000 mesh) | 3 |
| Fumed silica A200 | 0.5 |
| Benzene-free photoinitiator IHT-PI6022 | 2.0 |
| Antifoaming agent TEGO810 | 0.1 |
| Bactericide K-20 | 0.2 |
| Wetting agent TEGO245 | 0.2 |
| PH regulator AMP-95 | 0.2 |
| Thickener PU40 | 0.2 |
| Water (W) | 1.6 |
| Total up to | 100 |
2. The preparation method comprises the following steps: the viscosity was adjusted to 65KU/25 ℃ in the same manner as in example 1.
3. The detection results are as follows:
| index (I) | Results | Application method |
| Solid content | 92.5％ | GB/T1725-79 method |
| Appearance of the product | Milky white fluid | GB 1727-79 |
| Fineness of fineness | ≤45um | GB/T1724-1979 |
| Adhesion force | Level 1 | GB/T9286-1979 |
| Benzene content mg/m2 | 0.003 | YC/T207-2006 |
| Water resistance | Grade 3 | GB\T6682 |
| Hardness of | 3H | GB\T1730-1993 |
| Sanding property | No sand adhesion phenomenon exists in both No. 320 and No. 400 | |
| Transparency | Is very transparent | |
| Construction method | Spraying and roller painting | |
| Coating amount | 80-100g/m2 | |
| Curing energy | 150±50mg/cm2 |
The results show that: the benzene content mg/M before and after construction of the transparent primer of the embodiment2Less than or equal to 0.003 effect, almost no smell, no toxic and harmful substances such as triphenyl, formaldehyde, free TDI and the like, and the heavy metal content is far lower than the European standard.
Example 3: water-based ultraviolet-curing spraying transparent primer
1. The raw materials comprise the following components in percentage by weight:
| composition of | Content (weight percentage: 100%) |
| Aqueous UV resin UV LS2348 (solid content, 95%) | 46 |
| Water-based ultraviolet light wear-resistant resin SU-N78 | 35 |
| Reactive diluent HEMA | 7 |
| Talcum powder (grain size 1250 mesh) | 4 |
| Glass powder (particle size 3000 mesh) | 3 |
| Fumed silica A200 | 0.5 |
| Benzene-free photoinitiator IHT-PI6022 | 2.0 |
| Antifoaming agent TEGO810 | 0.1 |
| Bactericide K-20 | 0.2 |
| Wetting agent TEGO245 | 0.2 |
| PH regulator AMP-95 | 0.2 |
| Thickener PU40 | 0.2 |
| Water (W) | 1.6 |
| Total up to | 100 |
2. The preparation method comprises the following steps:
1) firstly, adding UV LS2348, SU-N78 and HEMA into a cylinder, dispersing for 10 minutes at a medium speed, then adding TP1250, JG3000 and A200 under stirring, and dispersing for 15 minutes at a high speed after uniformly stirring;
2) dispersing the photoinitiators IHT-PI6022 and TEGO810 at a medium speed for 10 minutes;
3) adding K-20, TEGO245, AMP-95, PU40 and water, stirring, adjusting pH to 8-9, and adjusting viscosity to 40-60KU/25 deg.C to obtain the final product.
3. The detection results are as follows:
| index (I) | Results | Method of producing a composite material |
| Solid content | 93％ | GB/T1725-79 (second method) |
| Appearance of the product | Milky white semifluid | GB 1727-79 |
| Fineness of fineness | ≤45um | GB/T1724-1979 |
| Adhesion force | 1.5 grade | GB/T9286-1979 |
| Water resistance | Grade 3 | GB\T6682 |
| Hardness of | 3H | GB\T1730-1993 |
| Sanding property | No sand adhesion phenomenon exists in both No. 320 and No. 400 | |
| Benzene content mg/m2 | 0.003 | YC/T207-2006 |
| Transparency | Is transparent | |
| Construction method | Spraying and roller painting | |
| Coating amount | 80-120g/m2 | |
| Curing energy | 200±50mg/cm2 |
The results show that: the benzene content mg/M before and after construction of the transparent primer of the embodiment2Functional products with effect of not more than 0.003, almost tasteless.
Comparative example: examples of chinese patent application 200810202791.0
1. The composition (weight percentage) is as follows: 65% of water-based ultraviolet resin, 5% of reactive diluent, 15% of talcum powder (with the particle size of 1000 meshes), 10% of calcium carbonate (with the particle size of 1000 meshes), 0.5% of fumed silica, 2.0% of photoinitiator, 0.1% of defoaming agent, 0.2% of bactericide, 0.2% of wetting agent, 0.2% of pH regulator, 0.2% of thickening agent and 1.6% of water, wherein the total amount is 100%.
2. The preparation method comprises the following specific steps:
1) adding the water-based ultraviolet resin and the reactive diluent into a cylinder, then adding the talcum powder, the calcium carbonate and the fumed silica under the condition of stirring, and after uniformly stirring, carrying out high-speed powder dispersion for 10 minutes;
2) adding a photoinitiator and a defoaming agent, and dispersing at medium speed for 5 minutes;
3) adding bactericide, wetting agent, pH regulator, thickener and water, stirring uniformly, regulating the pH value to 8-9, and adjusting the viscosity to 100-.
3. The detection results are as follows:
| index (I) | Results | Method of producing a composite material |
| Solid content | 93％ | GB/T1725-79 (second method) |
| Appearance of the product | Milky white semifluid | GB 1727-79 |
| Fineness of fineness | ≤45um | GB/T1724-1979 |
| Adhesion force | Level 1 | GB/T9286-1979 |
| Water resistance | Level 1 | GB\T6682 |
| Hardness of | 1H | GB\T1730-1993 |
| Sanding property | No sand adhesion phenomenon exists in both No. 320 and No. 400 | |
| Benzene content mg/m2 | 0.003 | YC T207-2006 |
| Transparency | Is transparent | |
| Construction method | Spraying of paint | |
| Coating amount | 80-120g/m2 | |
| Curing energy | 200±50mg/cm2 |
The results show that: the transparent primer of the embodiment is cured by ultraviolet light, the hardness only reaches 1H (GB \ T1730-1993 for testing), and the fullness is also general, the yellowing resistance is good, the solid content is high, and the transparency is good. But the obvious difference in water resistance only reaches GB \ T6682 (grade 1).
Experimental example:
comparative example Chinese patent application 200810202791.0 is compared with examples 1, 2 and 3
From the results of the tests of examples 1, 2 and 3 and comparative example, it can be seen that: the different comparison places of the examples 1, 2 and 3 and the Chinese patent 200810202791.0 mainly show that the examples provided by the invention can adopt not only a spray coating process but also a roll coating process, meanwhile, the hardness can reach more than 3H according to GB \ T1730-1993, the water resistance meets the requirement of the third-grade water in GB \ T6682, and the comparative example can not achieve the result. While the invention has been described in detail in the foregoing by way of general description, specific embodiments and experiments, it will be apparent to those skilled in the art that certain changes and modifications may be made therein based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The water-based ultraviolet-curing transparent primer is characterized by comprising the following components in percentage by weight: 40-60% of water-based ultraviolet resin, 30-45% of water-based ultraviolet wear-resistant resin, 3-10% of water-based reactive diluent, 3-15% of talcum powder, 1.0-10% of glass powder, 0.5-1.0% of fumed silica, 1.0-3.0% of benzene-free photoinitiator and 1-2% of water.
2. The waterborne uv-curable transparent primer according to claim 1, characterized in that the waterborne uv resin is a waterborne polyurethane acrylic dispersion.
3. The transparent primer of claim 1, wherein the ultraviolet abrasion-resistant resin is a high hardness ultraviolet aqueous polyester acrylic dispersion.
4. The waterborne uv-curable clear primer according to claim 1, wherein the waterborne reactive diluent is beta-hydroxyethyl methacrylate or beta-hydroxyethyl acrylate.
5. The waterborne uv-curable clear primer according to claim 1, wherein the benzene-free photoinitiator is 2-hydroxy-2-methyl-1-phenyl-1-propanone.
6. The waterborne ultraviolet-curable transparent primer according to claim 1, wherein the particle size of the talc is 1250-2500 mesh.
7. The waterborne ultraviolet-curable transparent primer according to claim 1, wherein the glass powder has a particle size of 2500-3000 mesh.
8. The water-based ultraviolet-curable transparent primer according to any one of claims 1 to 7, further comprising the following components in parts by weight: 0.1 to 0.5 percent of defoaming agent, 0.1 to 0.2 percent of bactericide, 0.1 to 0.2 percent of wetting agent, 0.1 to 0.5 percent of pH value regulator or 0.1 to 0.5 percent of thickening agent.
9. A method of preparing the aqueous uv curable clear primer according to any one of claims 1 to 7, comprising the steps of:
1) adding the aqueous ultraviolet resin, the aqueous ultraviolet wear-resistant resin and the aqueous reactive diluent into a cylinder, then adding the talcum powder, the glass powder and the fumed silica under low-speed stirring, uniformly stirring, and dispersing for 10-25 minutes;
2) adding a photoinitiator, and dispersing for 3-10 minutes;
3) adding water, stirring, adjusting pH to 8-9, and adjusting viscosity to 40-60KU/25 deg.C to obtain the final product.
10. A method of preparing the aqueous uv curable clear primer of claim 8, comprising the steps of:
1) adding the aqueous ultraviolet resin, the aqueous ultraviolet wear-resistant resin and the aqueous reactive diluent into a cylinder, then adding the talcum powder, the glass powder and the fumed silica under stirring, uniformly stirring and dispersing for 5-15 minutes;
2) adding a photoinitiator and a defoaming agent, and dispersing for 3-10 minutes;
3) adding bactericide, wetting agent, pH regulator, thickener and water, stirring, regulating pH to 8-9, and adjusting viscosity to 40-60KU/25 deg.C to obtain the final product.
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Cited By (7)
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| CN102827538A (en) * | 2012-09-17 | 2012-12-19 | 上海富臣化工有限公司 | Water-based ultraviolet (UV) shower coating matt white paint |
| CN103484011A (en) * | 2012-06-13 | 2014-01-01 | 展辰涂料集团股份有限公司 | Water-based ultraviolet curing coating |
| CN103911027A (en) * | 2014-04-30 | 2014-07-09 | 湖州大周高分子材料有限公司 | Waterborne UV-curable floor coating with high weatherability |
| CN106976351A (en) * | 2016-01-15 | 2017-07-25 | 上海协承昌化工有限公司 | A kind of three-dimensional lamina and sheet material for sheet material |
| CN108441104A (en) * | 2018-04-08 | 2018-08-24 | 东莞市家美环保涂料有限公司 | One kind having high scratch resistant aqueous woodware varnish lacquer of high rigidity and preparation method thereof |
| CN111701818A (en) * | 2020-06-30 | 2020-09-25 | 浙江喜盈门家居科技股份有限公司 | Environment-friendly water-based UV curing paint roller coating process |
| CN112480805A (en) * | 2020-10-30 | 2021-03-12 | 中山市鑫峰光固化材料有限公司 | Novel water-based ultraviolet-curing wear-resistant coating and preparation method and use method thereof |
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| CN106976351A (en) * | 2016-01-15 | 2017-07-25 | 上海协承昌化工有限公司 | A kind of three-dimensional lamina and sheet material for sheet material |
| CN108441104A (en) * | 2018-04-08 | 2018-08-24 | 东莞市家美环保涂料有限公司 | One kind having high scratch resistant aqueous woodware varnish lacquer of high rigidity and preparation method thereof |
| CN111701818A (en) * | 2020-06-30 | 2020-09-25 | 浙江喜盈门家居科技股份有限公司 | Environment-friendly water-based UV curing paint roller coating process |
| CN112480805A (en) * | 2020-10-30 | 2021-03-12 | 中山市鑫峰光固化材料有限公司 | Novel water-based ultraviolet-curing wear-resistant coating and preparation method and use method thereof |
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| CN102408827B (en) | 2013-05-08 |
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Address after: 101105 Beijing Tongzhou District Yongle Economic Development Zone Patentee after: Beijing Zhan Chen novel material company limited Patentee after: CHINA ZHANCHEN PAINTS GROUP LTD. Patentee after: Shanghai Zhanchen Paint Co., Ltd. Address before: 101105 Beijing Tongzhou District Yongle Economic Development Zone Patentee before: Beijing Zhanchen Chemical Industry Co., Ltd. Patentee before: Zhanchen Coatings Group Co., Ltd. Patentee before: Shanghai Fuchen Chemical Co., Ltd. |
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