CN115197629A - Ultraviolet-curing water-based paint for metal - Google Patents
Ultraviolet-curing water-based paint for metal Download PDFInfo
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- CN115197629A CN115197629A CN202210878964.0A CN202210878964A CN115197629A CN 115197629 A CN115197629 A CN 115197629A CN 202210878964 A CN202210878964 A CN 202210878964A CN 115197629 A CN115197629 A CN 115197629A
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- Prior art keywords
- water
- epoxy resin
- resin emulsion
- phosphate ester
- based paint
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 48
- 239000002184 metal Substances 0.000 title claims abstract description 48
- 239000003973 paint Substances 0.000 title claims abstract description 45
- 239000003822 epoxy resin Substances 0.000 claims abstract description 63
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 63
- -1 phosphate ester Chemical class 0.000 claims abstract description 59
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 53
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 53
- 239000010452 phosphate Substances 0.000 claims abstract description 53
- 239000000839 emulsion Substances 0.000 claims abstract description 48
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 45
- 239000002904 solvent Substances 0.000 claims abstract description 41
- 239000002994 raw material Substances 0.000 claims abstract description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 44
- 239000002086 nanomaterial Substances 0.000 claims description 21
- WMYINDVYGQKYMI-UHFFFAOYSA-N 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethylpropane-1,3-diol Chemical compound CCC(CO)(CO)COCC(CC)(CO)CO WMYINDVYGQKYMI-UHFFFAOYSA-N 0.000 claims description 20
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 20
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 20
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 claims description 19
- MPIAGWXWVAHQBB-UHFFFAOYSA-N [3-prop-2-enoyloxy-2-[[3-prop-2-enoyloxy-2,2-bis(prop-2-enoyloxymethyl)propoxy]methyl]-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(COC(=O)C=C)(COC(=O)C=C)COCC(COC(=O)C=C)(COC(=O)C=C)COC(=O)C=C MPIAGWXWVAHQBB-UHFFFAOYSA-N 0.000 claims description 15
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 11
- 150000002739 metals Chemical class 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 8
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- OMNKZBIFPJNNIO-UHFFFAOYSA-N n-(2-methyl-4-oxopentan-2-yl)prop-2-enamide Chemical compound CC(=O)CC(C)(C)NC(=O)C=C OMNKZBIFPJNNIO-UHFFFAOYSA-N 0.000 claims description 6
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 4
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 claims description 4
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- YMCOIFVFCYKISC-UHFFFAOYSA-N ethoxy-[2-(2,4,6-trimethylbenzoyl)phenyl]phosphinic acid Chemical compound CCOP(O)(=O)c1ccccc1C(=O)c1c(C)cc(C)cc1C YMCOIFVFCYKISC-UHFFFAOYSA-N 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 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 2
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 claims description 2
- XLPJNCYCZORXHG-UHFFFAOYSA-N 1-morpholin-4-ylprop-2-en-1-one Chemical compound C=CC(=O)N1CCOCC1 XLPJNCYCZORXHG-UHFFFAOYSA-N 0.000 claims description 2
- 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 claims description 2
- SEILKFZTLVMHRR-UHFFFAOYSA-N 2-phosphonooxyethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOP(O)(O)=O SEILKFZTLVMHRR-UHFFFAOYSA-N 0.000 claims description 2
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 claims description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 2
- 244000028419 Styrax benzoin Species 0.000 claims description 2
- 235000000126 Styrax benzoin Nutrition 0.000 claims description 2
- 235000008411 Sumatra benzointree Nutrition 0.000 claims description 2
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 claims description 2
- 229960002130 benzoin Drugs 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
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 2
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims description 2
- 235000019382 gum benzoic Nutrition 0.000 claims description 2
- YLHXLHGIAMFFBU-UHFFFAOYSA-N methyl phenylglyoxalate Chemical compound COC(=O)C(=O)C1=CC=CC=C1 YLHXLHGIAMFFBU-UHFFFAOYSA-N 0.000 claims description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 2
- 238000000576 coating method Methods 0.000 abstract description 38
- 239000011248 coating agent Substances 0.000 abstract description 32
- 239000000758 substrate Substances 0.000 abstract description 13
- 238000009835 boiling Methods 0.000 abstract description 8
- 229920005989 resin Polymers 0.000 abstract description 7
- 239000011347 resin Substances 0.000 abstract description 7
- 239000011159 matrix material Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 27
- 238000001723 curing Methods 0.000 description 25
- XMLYCEVDHLAQEL-UHFFFAOYSA-N 2-hydroxy-2-methyl-1-phenylpropan-1-one Chemical compound CC(C)(O)C(=O)C1=CC=CC=C1 XMLYCEVDHLAQEL-UHFFFAOYSA-N 0.000 description 16
- 239000012957 2-hydroxy-2-methyl-1-phenylpropanone Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 8
- GKZPEYIPJQHPNC-UHFFFAOYSA-N 2,2-bis(hydroxymethyl)propane-1,3-diol prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OCC(CO)(CO)CO GKZPEYIPJQHPNC-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 229920005749 polyurethane resin Polymers 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 150000001768 cations Chemical class 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000000016 photochemical curing Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
Abstract
The invention relates to an ultraviolet curing water-based paint for metal, which comprises, by mass, 30-55% of a water-based epoxy resin emulsion, 10-25% of a cross-linking agent, 5-10% of a phosphate ester accelerator, 15-30% of a solvent, 1-10% of a leveling agent and 1-10% of a photoinitiator, wherein the water-based epoxy resin emulsion is 0425A type water-based epoxy resin emulsion provided by Guangdong province honeycomb nano material Co. According to the invention, the waterborne epoxy resin emulsion is used as matrix resin, the adhesion force between a paint film and a metal substrate is increased by adding a phosphate ester accelerator, and the adhesion force and other mechanical properties on the metal substrate are improved by adding the synergistic effect of the cross-linking agent, the solvent, the flatting agent, the photoinitiator and other auxiliaries, so that the obtained paint is high in glossiness after being formed into a film and has good hot water boiling resistance. In addition, the coating can effectively reduce the production cost through reasonable collocation of the raw material components, is environment-friendly and safe, is convenient to construct and is beneficial to popularization.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to an ultraviolet curing water-based coating for metal.
Background
The traditional coating curing method is to remove the solvent in the polymer solution by heating, namely physical drying, so as to obtain a hardened paint film; UV curing is to use the energy of ultraviolet light to initiate the polymerization and crosslinking reaction between low molecular prepolymer or oligomer in the paint and monomer molecules as active diluent to obtain a hardened paint film, which is essentially chemically dried by forming chemical bonds.
The photocuring coating utilizes the ultraviolet curing technical principle, after the photoinitiator is radiated by ultraviolet light, the electron of the outer layer of the molecule jumps from a ground state to an excited state, thereby generating cations or free radicals, the generated cations or free radicals are used as active centers to react with unsaturated double bonds or epoxy groups in a resin system, and then continuous polymerization reaction is initiated, and finally, the product is crosslinked and cured to form a film under the exhaustion of the double bonds and the epoxy groups; the photocureable coating has the characteristics of short curing time, low curing temperature and low volatile matter, and is a new coating variety with energy consumption saving, resource saving, no pollution and high efficiency.
At present, most of photocureable coatings have low performance on metal, weak adhesion to metal substrates, low glossiness and poor washing resistance, and wet films are generally dried and dewatered before photocuring, so that energy consumption is increased, production time is prolonged, production efficiency is reduced, and construction requirements cannot be met.
Disclosure of Invention
In view of the above, it is necessary to provide a uv curable water-based paint for metals, which addresses the problems of the prior art.
The ultraviolet curing water paint for metal consists of water epoxy resin emulsion 30-55 wt%, cross-linking agent 10-25 wt%, phosphate ester promoter 5-10 wt%, solvent 15-30 wt%, leveling agent 1-10 wt% and photoinitiator 1-10 wt%,
the waterborne epoxy resin emulsion is a 0425A type waterborne epoxy resin emulsion provided by Honeycomb nanometer materials, inc., guangdong province.
In one embodiment, the raw materials comprise, by mass, 40-45% of an aqueous epoxy resin emulsion, 15-20% of a cross-linking agent, 6-8% of a phosphate ester accelerator, 20-25% of a solvent, 2-5% of a leveling agent and 3-5% of a photoinitiator.
In one embodiment, the phosphate ester accelerator is one or more of 2-hydroxyethyl methacrylate phosphate or ethylene glycol methacrylate phosphate.
In one embodiment, the cross-linking agent is one or more of ditrimethylolpropane acrylate, ethylene glycol dimethacrylate, dipentaerythritol hexaacrylate, tripropylene glycol diacrylate, 4-acryloylmorpholine, diacetone acrylamide or pentaerythritol triacrylate.
In one embodiment, the solvent is one or more of ethyl acetate, butyl acetate, ethanol, isopropanol, butanol, acetone, or butanone.
In one embodiment, the leveling agent is one or more of polyether modified silicone, polyester modified silicone, polyether modified polydimethylsiloxane or polyether siloxane.
In one embodiment, the photoinitiator is one or more of 2-hydroxy-2-methyl-1-phenyl acetone, 1-hydroxycyclohexyl phenyl ketone, 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide, ethyl 2,4, 6-trimethylbenzoyl phenyl phosphonate, methyl benzoylformate or benzoin bis methyl ether.
In one embodiment, the preparation method of the ultraviolet light curing water-based paint for the metal comprises the following steps: weighing the water-based epoxy resin emulsion, the cross-linking agent and the phosphate ester accelerator according to the mass percentage, adding the water-based epoxy resin emulsion, the cross-linking agent and the phosphate ester accelerator into a container, fully stirring, sequentially adding the solvent, the flatting agent and the photoinitiator after uniformly stirring, and fully stirring uniformly to obtain the ultraviolet curing water-based paint for metals.
The ultraviolet curing water-based paint for the metal comprises a water-based epoxy resin emulsion, a cross-linking agent, a phosphate ester accelerator, a solvent, a flatting agent and a photoinitiator; the waterborne epoxy resin emulsion has extremely high adhesive force to a plurality of substrates, and the cured coating has excellent corrosion resistance and chemical resistance; the cross-linking agent has the function of generating chemical bonds among linear molecules, so that the linear molecules are mutually connected to form a net structure, the strength and the elasticity of the high polymer material are further improved, and the mechanical property of the coating is favorably improved; the phosphate ester accelerator has excellent adhesive force on a metal substrate, and can improve the water resistance and hot water boiling resistance of the coating; the solvent can improve the compatibility of the waterborne epoxy resin emulsion and the cross-linking agent, so that the waterborne epoxy resin emulsion can be dispersed more uniformly in the waterborne epoxy resin emulsion; the flatting agent can promote the coating to form a flat, smooth and uniform coating film in the drying and film forming process, effectively reduce the surface tension of the coating, and can help the coating to obtain a good flatting effect by adjusting the flatting agent in the coating in the construction and film forming processes; the photoinitiator can absorb energy with a certain wavelength to generate free radicals, cations and the like, so that a monomer is initiated to polymerize, crosslink and solidify a compound, and the coating is solidified into a film.
According to the invention, the waterborne epoxy resin emulsion is used as matrix resin, the adhesion force between a paint film and a metal substrate is increased by adding a phosphate ester accelerator, and the adhesion force and other mechanical properties on the metal substrate are improved by adding the synergistic effect of the cross-linking agent, the solvent, the flatting agent, the photoinitiator and other auxiliaries, so that the obtained paint has better comprehensive performance, high glossiness after film forming and good hot water boiling resistance. In addition, the coating can effectively reduce the production cost through reasonable collocation of the raw material components, is environment-friendly and safe, is convenient to construct, and is beneficial to popularization.
Detailed Description
The present invention will be described in detail with reference to the following embodiments in order to make the aforementioned objects, features and advantages of the invention more comprehensible. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will recognize without departing from the spirit and scope of the present invention.
As used herein, the term "consisting of 8230; preparation" is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.
In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example 1
The ultraviolet curing water-based paint for the metal comprises, by mass, 45% of water-based epoxy resin emulsion, 25% of a cross-linking agent, 5% of a phosphate ester accelerator, 20% of a solvent, 2% of a leveling agent and 3% of a photoinitiator.
Specifically, the aqueous epoxy resin emulsion adopts 0425A type aqueous epoxy resin provided by Guangdong province honeycomb nano material company; the cross-linking agent adopts ditrimethylolpropane acrylate and dipentaerythritol hexaacrylate, and the proportion of the ditrimethylolpropane acrylate to the dipentaerythritol hexaacrylate is 10; the phosphate ester accelerator is SR9011 type phosphate ester accelerator provided by sandomar; the solvent adopts isopropanol and water, and the proportion of the isopropanol to the water is 1; the flatting agent is an FC-54 type flatting agent provided by Guangdong province honeycomb nano material company Limited; the photoinitiator used was 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide and 2-hydroxy-2-methyl-1-phenylpropanone, and the ratio of the 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide to the 2-hydroxy-2-methyl-1-phenylpropanone was 1.5.
Further, the preparation method of the ultraviolet curing water-based paint for the metal comprises the following steps: weighing the water-based epoxy resin emulsion, the cross-linking agent and the phosphate ester accelerator according to the mass percentage, adding the mixture into a container, fully stirring the mixture, sequentially adding the solvent, the flatting agent and the photoinitiator after the mixture is uniformly stirred, and fully stirring the mixture uniformly to obtain the ultraviolet curing water-based paint for the metal
Example 2
The ultraviolet curing water-based paint for the metal comprises, by mass, 50% of water-based epoxy resin emulsion, 20% of a cross-linking agent, 5% of a phosphate ester accelerator, 17% of a solvent, 5% of a leveling agent and 3% of a photoinitiator.
Specifically, the aqueous epoxy resin emulsion adopts 0425A type aqueous epoxy resin provided by Guangdong province honeycomb nano material company Limited; the cross-linking agent adopts diacetone acrylamide and dipentaerythritol hexaacrylate, and the proportion of the diacetone acrylamide to the dipentaerythritol hexaacrylate is 5; the phosphate ester accelerator is SR9011 type phosphate ester accelerator provided by sandomar; the solvent adopts butanol, isopropanol and water, and the ratio of the butanol to the isopropanol to the water is 1; the leveling agent is a BYK-346 type leveling agent provided by Pico corporation; the photoinitiator used was ethyl 2,4, 6-trimethylbenzoylphenylphosphonate and 2-hydroxy-2-methyl-1-phenylacetone, and the ratio of the ethyl 2,4, 6-trimethylbenzoylphenylphosphonate to the 2-hydroxy-2-methyl-1-phenylacetone was 1.
The preparation method of this example is the same as example 1.
Example 3
The ultraviolet curing water-based paint for the metal comprises, by mass, 45% of water-based epoxy resin emulsion, 25% of a cross-linking agent, 7% of a phosphate ester accelerator, 16% of a solvent, 4% of a leveling agent and 3% of a photoinitiator.
Specifically, the aqueous epoxy resin emulsion adopts 0425A type aqueous epoxy resin provided by Guangdong province honeycomb nano material company Limited; the cross-linking agent adopts ditrimethylolpropane acrylate and diacetone acrylamide, and the proportion of the ditrimethylolpropane acrylate to the diacetone acrylamide is 5; the phosphate ester accelerator is a phosphate ester accelerator of CD9051 type provided by the sandomar company; the solvent adopts ethyl acetate, butanol and water, and the proportion of the ethyl acetate, the butanol and the water is 1; the flatting agent is an FC-54 type flatting agent provided by Guangdong province honeycomb nano material company Limited; the photoinitiator adopts 2,4, 6-trimethyl benzoyl phenyl ethyl phosphonate.
The preparation method of this example is the same as example 1.
Example 4
The ultraviolet curing water-based paint for the metal comprises, by mass, 45% of water-based epoxy resin emulsion, 25% of a cross-linking agent, 8% of a phosphate ester accelerator, 15% of a solvent, 4% of a leveling agent and 3% of a photoinitiator.
Specifically, the aqueous epoxy resin emulsion adopts 0425A type aqueous epoxy resin provided by Guangdong province honeycomb nano material company; the cross-linking agent adopts dipentaerythritol hexaacrylate; the phosphate ester accelerator adopts multifunctional alkyl phosphate ester; the solvent adopts butyl acetate, butanol and water, and the ratio of butyl acetate, butanol and water is 1; the leveling agent is a model 4100 leveling agent of Digao company; the photoinitiator used is 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The preparation method of this example is the same as example 1.
Example 5
The ultraviolet curing water-based paint for the metal comprises, by mass, 50% of water-based epoxy resin emulsion, 15% of cross-linking agent, 8% of phosphate ester accelerator, 20% of solvent, 4% of leveling agent and 3% of photoinitiator.
Specifically, the aqueous epoxy resin emulsion adopts 0425A type aqueous epoxy resin provided by Guangdong province honeycomb nano material company Limited; the cross-linking agent adopts ditrimethylolpropane acrylate and dipentaerythritol hexaacrylate, and the proportion of the ditrimethylolpropane acrylate to the dipentaerythritol hexaacrylate is 6; the phosphate ester accelerator is PM-2 type phosphate ester accelerator provided by Japan chemical company; the solvent adopts butanol, isopropanol and water, and the ratio of the butanol to the isopropanol to the water is 1; the leveling agent is a BYK-333 model leveling agent provided by Picker company; the photoinitiator adopts 2-hydroxy-2-methyl-1-phenyl acetone and 2,4, 6-trimethyl benzoyl phenyl ethyl phosphonate, and the proportion of the 2-hydroxy-2-methyl-1-phenyl acetone to the 2,4, 6-trimethyl benzoyl phenyl ethyl phosphonate is 1.5.
The preparation method of this example is the same as example 1.
Example 6
The ultraviolet curing water-based paint for the metal comprises, by mass, 55% of a water-based epoxy resin emulsion, 10% of a cross-linking agent, 10% of a phosphate ester accelerator, 10% of a solvent, 10% of a leveling agent and 5% of a photoinitiator.
Specifically, the aqueous epoxy resin emulsion adopts 0425A type aqueous epoxy resin provided by Guangdong province honeycomb nano material company Limited; the cross-linking agent adopts ditrimethylolpropane acrylate and dipentaerythritol hexaacrylate, and the proportion of the ditrimethylolpropane acrylate to the dipentaerythritol hexaacrylate is 10; the phosphate ester accelerator is SR9011 type phosphate ester accelerator provided by sandomar; the solvent adopts isopropanol and water, and the proportion of the isopropanol to the water is 1; the flatting agent is an FC-54 type flatting agent provided by Guangdong province honeycomb nano material company Limited; the photoinitiator used was 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide and 2-hydroxy-2-methyl-1-phenylpropanone, and the ratio of the 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide to the 2-hydroxy-2-methyl-1-phenylpropanone was 1.5.
The preparation method of this example is the same as example 1.
Example 7
The ultraviolet curing water-based paint for the metal comprises, by mass, 30% of water-based epoxy resin emulsion, 20% of a cross-linking agent, 6% of a phosphate ester accelerator, 30% of a solvent, 10% of a leveling agent and 4% of a photoinitiator.
Specifically, the aqueous epoxy resin emulsion adopts 0425A type aqueous epoxy resin provided by Guangdong province honeycomb nano material company; the cross-linking agent adopts ditrimethylolpropane acrylate and dipentaerythritol hexaacrylate, and the proportion of the ditrimethylolpropane acrylate to the dipentaerythritol hexaacrylate is 10; the phosphate ester accelerator is SR9011 type phosphate ester accelerator provided by Saedoma; the solvent adopts isopropanol and water, and the proportion of the isopropanol to the water is 1; the flatting agent is an FC-54 type flatting agent provided by Guangdong province honeycomb nano material company Limited; the photoinitiator used was 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide and 2-hydroxy-2-methyl-1-phenylpropanone, and the ratio of the 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide to the 2-hydroxy-2-methyl-1-phenylpropanone was 1.5.
The preparation method of this example is the same as example 1.
Example 8
The ultraviolet curing water-based paint for the metal comprises, by mass, 40% of water-based epoxy resin emulsion, 15% of a cross-linking agent, 5% of a phosphate ester accelerator, 25% of a solvent, 5% of a leveling agent and 10% of a photoinitiator.
Specifically, the aqueous epoxy resin emulsion adopts 0425A type aqueous epoxy resin provided by Guangdong province honeycomb nano material company; the cross-linking agent adopts ditrimethylolpropane acrylate and dipentaerythritol hexaacrylate, and the proportion of the ditrimethylolpropane acrylate to the dipentaerythritol hexaacrylate is 10; the phosphate ester accelerator is SR9011 type phosphate ester accelerator provided by Saedoma; the solvent adopts isopropanol and water, and the proportion of the isopropanol to the water is 1; the flatting agent is an FC-54 type flatting agent provided by Guangdong province honeycomb nano material company Limited; the photoinitiator used was 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide and 2-hydroxy-2-methyl-1-phenylpropanone, and the ratio of the 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide to the 2-hydroxy-2-methyl-1-phenylpropanone was 1.5.
The preparation method of this example is the same as example 1.
Comparative example 1
The ultraviolet curing water-based paint for the metal comprises, by mass, 45% of epoxy resin, 25% of a cross-linking agent, 5% of a phosphate ester accelerator, 20% of a solvent, 2% of a leveling agent and 3% of a photoinitiator.
Specifically, the epoxy resin is G1105 type epoxy resin provided by Tiannu corporation, the cross-linking agent is ditrimethylolpropane acrylate and pentaerythritol hexaacrylate, and the proportion of the ditrimethylolpropane acrylate to the pentaerythritol hexaacrylate is 10; the phosphate ester accelerator is SR9011 type phosphate ester accelerator provided by Saedoma; the solvent adopts isopropanol and water, and the proportion of the isopropanol to the water is 1; the flatting agent is an FC-54 type flatting agent provided by Guangdong province honeycomb nano material company Limited; the photoinitiator used was 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide and 2-hydroxy-2-methyl-1-phenylpropanone, and the ratio of the 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide to the 2-hydroxy-2-methyl-1-phenylpropanone was 1.5.
The comparative example was prepared in the same manner as in example 1.
Comparative example 2
The ultraviolet curing water-based paint for the metal comprises, by mass, 45% of aqueous polyurethane resin, 25% of a cross-linking agent, 5% of a phosphate ester accelerator, 20% of a solvent, 2% of a leveling agent and 3% of a photoinitiator.
Specifically, the aqueous polyurethane resin is polyurethane resin model 8026 provided by honeycomb nano materials ltd, guangdong province, the cross-linking agent is ditrimethylolpropane acrylate and pentaerythritol hexaacrylate, and the ratio of the ditrimethylolpropane acrylate to the pentaerythritol hexaacrylate is 10; the phosphate ester accelerator is SR9011 type phosphate ester accelerator provided by sandomar; the solvent adopts isopropanol and water, and the proportion of the isopropanol to the water is 1; the flatting agent is an FC-54 type flatting agent provided by Guangdong province honeycomb nano material company Limited; the photoinitiator used was 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide and 2-hydroxy-2-methyl-1-phenylpropanone, and the ratio of the 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide to the 2-hydroxy-2-methyl-1-phenylpropanone was 1.5.
The comparative example was prepared in the same manner as in example 1.
Comparative example 3
The ultraviolet curing water-based paint for the metal comprises, by mass, 45% of water-based epoxy resin emulsion, 25% of a cross-linking agent, 20% of a solvent, 2% of a leveling agent and 3% of a photoinitiator.
Specifically, the aqueous epoxy resin emulsion adopts 0425A type aqueous epoxy resin provided by Guangdong province honeycomb nano material company Limited; the cross-linking agent adopts ditrimethylolpropane acrylate and pentaerythritol hexaacrylate, and the proportion of the ditrimethylolpropane acrylate to the pentaerythritol hexaacrylate is 10; the solvent adopts isopropanol and water, and the proportion of the isopropanol to the water is 1; the flatting agent is an FC-54 type flatting agent provided by Guangdong province honeycomb nano material company Limited; the photoinitiator used was 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide and 2-hydroxy-2-methyl-1-phenylpropanone, and the ratio of the 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide to the 2-hydroxy-2-methyl-1-phenylpropanone was 1.5.
The comparative example was prepared in the same manner as in example 1.
Comparative example 4
The ultraviolet curing water-based paint for the metal comprises, by mass, 45% of water-based epoxy resin emulsion, 5% of phosphoric acid accelerator, 40% of solvent, 5% of flatting agent and 5% of photoinitiator.
Specifically, the aqueous epoxy resin emulsion adopts 0425A type aqueous epoxy resin provided by Guangdong province honeycomb nano material company Limited; the phosphate ester accelerator is SR9011 type phosphate ester accelerator provided by sandomar; the solvent adopts isopropanol and water, and the proportion of the isopropanol to the water is 1; the flatting agent is an FC-54 type flatting agent provided by Guangdong province honeycomb nano material company Limited; the photoinitiator used was 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide and 2-hydroxy-2-methyl-1-phenylpropanone, and the ratio of the 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide to the 2-hydroxy-2-methyl-1-phenylpropanone was 1.5.
The comparative example was prepared in the same manner as in example 1.
Further, the raw material components and contents of examples 1 to 8 are shown in table 1, and the raw material components and contents of comparative examples 1 to 4 are shown in table 2:
TABLE 1
TABLE 2
| Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | |
| Aqueous epoxy resin emulsion | 45％ | 45％ | 45％ | 45％ |
| Crosslinking agent | 25％ | 25％ | 25％ | |
| Phosphate ester accelerator | 5％ | 5％ | 5％ | |
| Solvent(s) | 20％ | 20％ | 25％ | 40％ |
| Leveling agent | 2％ | 2％ | 2％ | 5％ |
| Photoinitiator(s) | 3％ | 3％ | 3％ | 5％ |
The coatings obtained in examples 1 to 8 and comparative examples 1 to 4 were tested according to the following criteria:
the boiling resistance is tested according to a boiling water resistance performance test method in GB 5237.4-2008 'aluminum alloy building section bar part 4 powder spraying section bar';
testing the hardness according to a detection method in GB/T6739-2006 paint film hardness determination by a color paint and varnish pencil method;
testing the adhesive force according to a detection method in GB/T9286-2021 Bing test for colored paint and varnish;
the 60 ℃ gloss was measured according to the test method in ASTM D523-2018 Standard test method for specular gloss.
The test was conducted according to the above criteria, wherein the test results of examples 1 to 8 are shown in Table 3, and the test results of comparative examples 1 to 4 are shown in Table 4:
TABLE 3
TABLE 4
| Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | |
| Appearance of the product | Unevenness is caused by | Is relatively flat | Is smoother | Unevenness of the skin |
| Film thickness (mum) | 10±2 | 10±2 | 10±2 | 10±2 |
| Hardness of | ≤F | ≤F | ≤F | ≤F |
| Adhesion force | 3B | 0B | 2B | 2B |
| Gloss (E) | 60°±3 | 62°±3 | 68°±3 | 53°±3 |
| Resistance to Hot Water boiling (80 °,30 min) | No abnormality | Difference (D) | Slightly whitish | Difference (D) |
| Flexibility of the film | 180° | ＜45° | 180° | 180° |
As can be seen from tables 3 and 4, the coatings obtained in examples 1 to 8 are significantly superior to the coatings obtained in comparative examples 1 to 5, and from Table 3, example 1 is the best example in the present invention, and the coatings obtained from the raw material components and contents used in example 1 have good fullness in appearance, high gloss after film formation, strong adhesion to metal surfaces, and good mechanical properties and hot water boiling resistance.
It should be noted that the difference between comparative example 1 and example 1 is that the brand of the epoxy resin is different, but the coating obtained in example 1 has more excellent performance in all aspects than the coating obtained in comparative example 1, which illustrates that different types of waterborne epoxy resins have a greater influence on the comprehensive performance of the coating film, and when the self-made waterborne epoxy resin emulsion is selected, the adhesion between the coating film and the metal substrate can be effectively enhanced, and simultaneously, the comprehensive performance of the coating film is optimized.
The difference between the comparative example 2 and the example 1 is that the aqueous epoxy resin emulsion is used as the matrix resin in the example 1, and the aqueous polyurethane resin is used as the matrix resin in the comparative example 2, which shows that under the same other conditions, the coating obtained by using the aqueous epoxy resin emulsion has better mechanical property and adhesion than the coating obtained by using the aqueous polyurethane resin.
The difference between the comparative example 3 and the example 1 is that the phosphate ester accelerator is not contained, but the phosphate ester accelerator itself can promote the adhesion of the coating on the metal substrate, and as can be seen from the detection result, the adhesion of the comparative example 3 is significantly lower than that of the example 1, and in addition, the adhesion of the coating on the metal substrate can be influenced by different using amounts of the phosphate ester accelerator, the adhesion of the coating on the metal substrate is lower when the using amount is too small, and the mechanical properties such as the hardness and the flexibility of the coating film can be influenced when the using amount is too large.
The comparative example 4 is different from the example 1 in that the crosslinking agent is not contained, the effect and the property of different crosslinking agents are different, the proportion of the matrix resin and the crosslinking agent not only influences the appearance of the coating film, but also influences the hardness, the flexibility, the adhesive force and the like of the coating film, and the glossiness of the coating film can be increased by adding the crosslinking agent in the invention, so that the comprehensive performance of the coating film is improved.
According to the invention, the ultraviolet curing water-based paint for metal takes the water-based epoxy resin emulsion as matrix resin, the adhesion force between a paint film and a metal substrate is increased by adding the phosphate ester accelerator, and the adhesion force and other mechanical properties on the metal substrate are improved by adding the synergistic effects of the cross-linking agent, the solvent, the flatting agent, the photoinitiator and other auxiliaries, so that the obtained paint has good comprehensive properties, high glossiness after film forming and good hot water boiling resistance. In addition, the coating can effectively reduce the production cost through reasonable collocation of the raw material components, is environment-friendly and safe, is convenient to construct and is beneficial to popularization.
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. The ultraviolet curing water-based paint for the metal is characterized by comprising 30-55% of water-based epoxy resin emulsion, 10-25% of cross-linking agent, 5-10% of phosphate ester accelerator, 15-30% of solvent, 1-10% of flatting agent and 1-10% of photoinitiator by mass percent,
the waterborne epoxy resin emulsion is a 0425A type waterborne epoxy resin emulsion provided by Guangdong province honeycomb nano material company Limited.
2. The ultraviolet-curable water-based paint for metals as claimed in claim 1, wherein the raw materials comprise, by mass, 40% -45% of a water-based epoxy resin emulsion, 15% -20% of a cross-linking agent, 6% -8% of a phosphate ester accelerator, 20% -25% of a solvent, 2% -5% of a leveling agent and 3% -5% of a photoinitiator.
3. The ultraviolet-curable water-based paint for metals according to claim 1 or 2, wherein the phosphate ester accelerator is one or more of 2-hydroxyethyl methacrylate phosphate or ethylene glycol methacrylate phosphate.
4. The UV-curable water-based paint for metals according to claim 1 or 2, wherein the cross-linking agent is one or more of ditrimethylolpropane acrylate, ethylene glycol dimethacrylate, dipentaerythritol hexaacrylate, tripropylene glycol diacrylate, 4-acryloylmorpholine, diacetone acrylamide or pentaerythritol triacrylate.
5. The ultraviolet-curable water-based paint for metals according to claim 1 or 2, characterized in that the solvent is one or more of ethyl acetate, butyl acetate, ethanol, isopropanol, butanol, acetone or butanone.
6. The ultraviolet-curable water-based paint for metals according to claim 1 or 2, wherein the leveling agent is one or more of polyether-modified silicone, polyester-modified silicone, polyether-modified polydimethylsiloxane or polyether siloxane.
7. The UV-curable water-based paint for metal according to claim 1 or 2, wherein the photoinitiator is one or more of 2-hydroxy-2-methyl-1-phenyl acetone, 1-hydroxycyclohexyl phenyl ketone, 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide, ethyl 2,4, 6-trimethylbenzoylphenylphosphonate, methyl benzoylformate or benzoin bis methyl ether.
8. The ultraviolet-curable water-based paint for metals according to any one of claims 1 to 7, characterized in that the preparation method of the ultraviolet-curable water-based paint for metals comprises the following steps: weighing the water-based epoxy resin emulsion, the cross-linking agent and the phosphate ester accelerator according to the mass percentage, adding the water-based epoxy resin emulsion, the cross-linking agent and the phosphate ester accelerator into a container, fully stirring, sequentially adding the solvent, the flatting agent and the photoinitiator after uniformly stirring, and fully stirring uniformly to obtain the ultraviolet curing water-based paint for metals.
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| CN116855154A (en) * | 2023-06-28 | 2023-10-10 | 南京工程学院 | Time-controllable ultraviolet curing system and preparation method and application thereof |
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