CN113265196B - UV-cured ultrasonic spraying hardening liquid and preparation method thereof - Google Patents
UV-cured ultrasonic spraying hardening liquid and preparation method thereof Download PDFInfo
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- 239000007788 liquid Substances 0.000 title claims abstract description 50
- 238000005507 spraying Methods 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 239000002904 solvent Substances 0.000 claims abstract description 22
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 19
- 239000000178 monomer Substances 0.000 claims abstract description 18
- 229920002635 polyurethane Polymers 0.000 claims abstract description 16
- 239000004814 polyurethane Substances 0.000 claims abstract description 16
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 22
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 15
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- 125000001931 aliphatic group Chemical group 0.000 claims description 9
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 8
- 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 8
- 239000007921 spray Substances 0.000 claims description 7
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 6
- RXGUIWHIADMCFC-UHFFFAOYSA-N 2-Methylpropyl 2-methylpropionate Chemical compound CC(C)COC(=O)C(C)C RXGUIWHIADMCFC-UHFFFAOYSA-N 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 claims description 6
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 3
- 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 3
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 3
- -1 acyl phosphine oxide Chemical compound 0.000 claims description 2
- 238000005336 cracking Methods 0.000 claims description 2
- 238000006356 dehydrogenation reaction Methods 0.000 claims description 2
- MYWOJODOMFBVCB-UHFFFAOYSA-N 1,2,6-trimethylphenanthrene Chemical compound CC1=CC=C2C3=CC(C)=CC=C3C=CC2=C1C MYWOJODOMFBVCB-UHFFFAOYSA-N 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 6
- 238000000889 atomisation Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229940035429 isobutyl alcohol Drugs 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000009759 San-Chi Substances 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 238000007766 curtain coating Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002932 luster Substances 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
- 230000010355 oscillation Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
-
- 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
- C09D7/20—Diluents or solvents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Polymerisation Methods In General (AREA)
Abstract
The invention belongs to the technical field of hardening liquid, and particularly relates to UV-cured ultrasonic spraying hardening liquid and a preparation method thereof, wherein the hardening liquid comprises the following components in percentage by mass: 25-35% of organic-inorganic hybrid resin, 10-20% of high-functionality polyurethane acrylate, 3-7% of active monomer, 1-3% of photoinitiator, 0.1-0.5% of auxiliary agent and the balance of solvent. The UV-cured ultrasonic spraying hardening liquid takes organic-inorganic hybrid resin and high-functionality polyurethane acrylate as main body resin, the viscosity of the hardening liquid is low, the hardening liquid can be used for continuous atomization spraying of a microporous ultrasonic atomization sheet to generate liquid drops with uniform small particle size, and a film obtained by spraying is high in hardness and good in wear resistance, so that the UV-cured ultrasonic spraying hardening liquid is very suitable for production of mobile phone backboards.
Description
Technical Field
The invention belongs to the technical field of hardening liquid, and particularly relates to UV-cured ultrasonic spraying hardening liquid and a preparation method thereof.
Background
With the popularization of smart phones, the mobile phone back plate made of composite materials is an indispensable part in mobile phone production as an important part of mobile phones, and for mobile phones with higher performance, the back plate of the mobile phone needs to be correspondingly processed and used, so that the mobile phone back plate has the characteristics of high hardness, high wear resistance, acid and alkali resistance, high fullness, luster and the like. The UV hardening liquid is usually produced by processes of high-pressure air spraying or rapid spraying of UV hardening liquid and the like, the high-pressure air spraying is characterized in that the uniform and thick-edge-free construction can be realized for workpieces with convex edges, and the defects of large spraying waste hardening liquid amount and large VOC discharge amount are overcome, so that the UV hardening liquid is rarely used in the mobile phone industry at present. The main stream at present is curtain coating, which has the advantages of effectively recycling hardening liquid, high utilization rate, low cost and low VOC discharge amount, but has the defects of good construction on a plane substrate and easy occurrence of poor phenomena such as oil accumulation, thick edges and the like on a plate surface with a convex-concave effect.
Disclosure of Invention
In order to solve the problems, the invention discloses UV-cured ultrasonic spraying hardening liquid which takes organic-inorganic hybrid resin and high-functionality polyurethane acrylate as main resin, has low viscosity and can be used for ultrasonic spraying, and a film obtained by spraying has high hardness and good wear resistance.
In order to achieve the purpose, the invention adopts the following technical scheme:
the UV-cured ultrasonic spraying hardening liquid comprises the following components in percentage by mass:
preferably, the preparation method of the organic-inorganic hybrid resin comprises the following steps:
(1) adding 25% of silica sol into a reaction kettle by mass percent, stirring and heating to 60 ℃, dripping 25% of 3- (methacryloyloxy) propyl trimethoxy silane while stirring, and preserving heat for 1 hour to prepare modified silica sol liquid;
(2) and (2) adding 10% of pentaerythritol triacrylate and 40% of high-functionality aliphatic urethane acrylate into a reaction kettle, stirring and heating to 60 ℃, adding the modified silica sol liquid prepared in the step (1) under stirring, and keeping the temperature for 1h to obtain the organic-inorganic hybrid resin.
Preferably, the stirring speed in the step (1) is 400 r/min; the stirring speed in the step (2) is 600 r/min.
Preferably, the silica sol used in the step (1) is a ZS-30 silica sol; the high-functionality aliphatic polyurethane acrylate used in the step (2) is hexa-functionality aliphatic polyurethane acrylate.
Preferably, the high-functionality urethane acrylate is an aliphatic urethane acrylate having a functionality of 9 to 15.
Preferably, the reactive monomer has a functionality greater than two.
Preferably, the active monomer is one or more of trimethylolpropane triacrylate (TMPTA), pentaerythritol triacrylate (PETA), pentaerythritol tri-acrylate, tetra-acrylate (PET3A) and dipentaerythritol hexaacrylate (DPHA); the photoinitiator is one or more of a cracking type photoinitiator, a hydrogen abstraction type photoinitiator or acyl phosphine oxide; the auxiliary agent is one or more of acrylate, polyester modified organic siloxane and polyether modified organic siloxane.
Preferably, the boiling point of the solvent is 100-140 ℃.
Preferably, the solvent is one or more selected from Ethyl Acetate (EAC), isobutyl isobutyrate (IBIB), isopropyl alcohol (IPA), isobutyl alcohol (IBA), Butyl Acetate (BAC), propylene glycol methyl ether acetate (PMA), and propylene glycol methyl ether (PM).
A preparation method of UV-cured ultrasonic spraying hardening liquid comprises the following steps: under the environment of completely isolating ultraviolet light by using a yellow light lamp, mixing an active monomer, a photoinitiator and a solvent, stirring at the speed of 200r/min until the active monomer, the photoinitiator and the solvent are dissolved, sequentially adding an inorganic-inorganic hybrid resin, high-functionality polyurethane acrylate and an auxiliary agent after the active monomer, the photoinitiator and the solvent are dissolved, and then stirring at the speed of 800r/min for 20min until the active monomer, the photoinitiator and the solvent are completely dissolved to prepare the UV-cured ultrasonic spraying hardening liquid.
The invention has the following beneficial effects:
(1) the UV-cured ultrasonic spraying hardening liquid takes organic-inorganic hybrid resin and high-functionality polyurethane acrylate as main resin, the viscosity of the hardening liquid is low, the hardening liquid can be used for continuous atomization spraying of a microporous ultrasonic atomization sheet to generate uniform liquid drops with small particle size, and a film obtained by spraying is high in hardness and good in wear resistance, so that the hardening liquid is very suitable for production of mobile phone backboards;
(2) the hardening liquid can be used for ultrasonic spraying, the ultrasonic spraying is to atomize the liquid into small liquid with the particle size of 20-80 microns by utilizing a micropore ultrasonic atomization sheet through high-frequency oscillation, because the atomized particles are fine and the surface activity of the particles is higher, the small liquid particles can be well adsorbed on the surface of a sprayed object, because the spraying is airless, the coating can not generate rebound and splash loss, the spraying uniformity can be effectively ensured, the oil accumulation and the thick edge can not be generated, meanwhile, the recycling can be realized, the discharge of VOC is reduced, and the ultrasonic spraying is efficient and environment-friendly;
(3) the auxiliary agent is selected from acrylate, polyester modified organic siloxane and polyether modified organic siloxane, the compatibility of the organic-inorganic hybrid resin is improved, and simultaneously the performance of the organic-inorganic hybrid resin is not influenced too much, and compared with the common auxiliary agent, a coating film obtained by adopting the auxiliary agent has better wear resistance;
(4) the boiling point of the solvent is 100-140 ℃, so that the drying speed of the hardening liquid is moderate, the ultrasonic spraying equipment cannot be blocked due to the excessively high drying speed, and the paint film after spraying cannot be edged due to the excessively high boiling point and no volatilization gradient, so that the attractiveness is seriously affected.
Detailed Description
The present invention will now be described in further detail with reference to examples.
The organic-inorganic hybrid resin adopts self-made resin with the mark of WS-870; the silica sol used in the step (1) for preparing the organic-inorganic hybrid resin is ZS-30 silica sol of Zhejiang Uuda chemical Co., Ltd, and the high-functionality aliphatic polyurethane acrylate used in the step (2) for preparing the organic-inorganic hybrid resin is 6145-100 of Changxing chemistry; the high-functionality polyurethane acrylate is one or more of UA-1730 of Zhongshanjieda, HM-5015 of Jiangxi Kunlong and L-6902 of sanchi chemical industry.
Preparation of organic-inorganic hybrid resin:
(1) adding 25kg of ZS-30 silica sol into a reaction kettle, stirring and heating to 60 ℃, dripping 25kg of 3- (methacryloyloxy) propyl trimethoxy silane at the stirring speed of 400r/min, and preserving heat for 1h to prepare modified silica sol liquid;
(2) and (2) adding 10kg of pentaerythritol triacrylate (PETA) and 40kg of 6145-100-ketone in a reaction kettle, stirring and heating to 60 ℃, adding the modified silica sol liquid prepared in the step (1) at a stirring speed of 600r/min, and keeping the temperature for 1h to obtain the organic-inorganic hybrid resin.
The preparation method of the hardening liquid comprises the following steps: under the environment of completely isolating ultraviolet light by using a yellow light lamp, mixing an active monomer, a photoinitiator and a solvent, stirring at the speed of 200r/min until the active monomer, the photoinitiator and the solvent are dissolved, sequentially adding an inorganic-inorganic hybrid resin, high-functionality polyurethane acrylate and an auxiliary agent after the active monomer, the photoinitiator and the solvent are dissolved, and then stirring at the speed of 800r/min for 20min until the active monomer, the photoinitiator and the solvent are completely dissolved to prepare the UV-cured ultrasonic spraying hardening liquid.
Examples 1 to 7 and comparative examples 1 to 5 the amounts of the respective components for preparing the hardening liquid are shown in Table 1.
TABLE 1
The construction conditions of the hardening liquid are as follows: base material pretreatment (alcohol wiping oil removal, electrostatic dust removal) → ultrasonic spraying (film thickness 5-10 μm) → infrared leveling (50 ℃, leveling 3-5min) → UV curing (curing energy 500 mJ/cm)2-800mJ/cm2) → workpiece offline.
The hardening liquids prepared in examples 1 to 7 and comparative examples 1 to 5 were subjected to the performance test of the coatings obtained by ultrasonic spraying, and the test results are shown in Table 2.
TABLE 2
The specific test method for cold and heat cycle resistance comprises the following steps: room temperature → -40 ℃ ± 2 ℃ hold 4H → room temperature 1H → 80 ℃ ± 2 ℃ (RH 80 ± 5%) hold 4H → room temperature, which is one cycle, for a total of 6 cycles tested.
The boiling point of the solvent in comparative example 3 is too low, which causes the problem that the viscosity of the spray nozzle is slowly increased because the solvent is volatilized too fast in the spraying process under the condition of continuous construction, and the effective continuous spraying cannot be carried out after the long-time construction.
In comparative example 4, the boiling point of the solvent is too high, no volatilization gradient exists, and the paint film after spraying has edge accumulation, thus seriously affecting the beauty.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. The UV-cured ultrasonic spraying hardening liquid is characterized in that: the paint comprises the following components in percentage by mass:
25 to 35 percent of organic-inorganic hybrid resin
10 to 20 percent of high-functionality polyurethane acrylate
3 to 7 percent of active monomer
1 to 3 percent of photoinitiator
0.1 to 0.5 percent of auxiliary agent
The balance of solvent;
the solvent is one or more of ethyl acetate, isobutyl isobutyrate, isopropanol, isobutanol, butyl acetate, propylene glycol methyl ether acetate and propylene glycol methyl ether;
the boiling point of the solvent component is 100-140 ℃;
the preparation method of the organic-inorganic hybrid resin comprises the following steps:
(1) adding 25% of silica sol into a reaction kettle by mass percent, stirring and heating to 60 ℃, dripping 25% of 3- (methacryloyloxy) propyl trimethoxy silane while stirring, and preserving heat for 1 hour to prepare modified silica sol liquid;
(2) and (2) adding 10% of pentaerythritol triacrylate and 40% of high-functionality aliphatic urethane acrylate into a reaction kettle, stirring and heating to 60 ℃, adding the modified silica sol liquid prepared in the step (1) under stirring, and keeping the temperature for 1h to obtain the organic-inorganic hybrid resin.
2. The UV-curable ultrasonic spray hardening liquid of claim 1, wherein: the stirring speed in the step (1) is 400 r/min; the stirring speed in the step (2) is 600 r/min.
3. The UV-curable ultrasonic spray hardening liquid of claim 1, wherein: the silica sol used in the step (1) is ZS-30 silica sol; the high-functionality aliphatic polyurethane acrylate used in the step (2) is hexa-functionality aliphatic polyurethane acrylate.
4. The UV-curable ultrasonic spray hardening liquid of claim 1, wherein: the high-functionality polyurethane acrylate is aliphatic polyurethane acrylate with the functionality of 9-15.
5. The UV-curable ultrasonic spray hardening liquid of claim 1, wherein: the reactive monomer has a functionality greater than two.
6. The UV-curable ultrasonic spray hardening liquid of claim 1, wherein: the active monomer is one or more of trimethylolpropane triacrylate, pentaerythritol tri-acrylate, pentaerythritol tetra-acrylate and dipentaerythritol hexaacrylate; the photoinitiator is one or more of a cracking type photoinitiator, a hydrogen abstraction type photoinitiator or acyl phosphine oxide; the auxiliary agent is one or more of acrylate, polyester modified organic siloxane and polyether modified organic siloxane.
7. A method of preparing a UV-curable ultrasonic spray hardening liquid according to any one of claims 1 to 6, characterized in that: the method comprises the following steps: under the environment of completely isolating ultraviolet light by using a yellow light lamp, mixing an active monomer, a photoinitiator and a solvent, stirring at the speed of 200r/min until the active monomer, the photoinitiator and the solvent are dissolved, sequentially adding an inorganic-inorganic hybrid resin, high-functionality polyurethane acrylate and an auxiliary agent after the active monomer, the photoinitiator and the solvent are dissolved, and then stirring at the speed of 800r/min for 20min until the active monomer, the photoinitiator and the solvent are completely dissolved to prepare the UV-cured ultrasonic spraying hardening liquid.
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| CN116496693A (en) * | 2022-09-09 | 2023-07-28 | 广东希贵光固化材料有限公司 | UV curing hardening liquid with high oxidation resistance and polymerization inhibition |
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| CN112175507A (en) * | 2020-09-04 | 2021-01-05 | 江苏利田科技股份有限公司 | Hybrid polyurethane acrylate UV (ultraviolet) coating with high surface hardness |
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| JP2016041423A (en) * | 2015-09-18 | 2016-03-31 | イーエイチエス レンズ フィリピン インク | Method of forming processing layer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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