CN106497170A - UV photocureable coating and preparation for vehicular touch screen rupture pressure disc hardening coat - Google Patents
UV photocureable coating and preparation for vehicular touch screen rupture pressure disc hardening coat Download PDFInfo
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- CN106497170A CN106497170A CN201610985382.7A CN201610985382A CN106497170A CN 106497170 A CN106497170 A CN 106497170A CN 201610985382 A CN201610985382 A CN 201610985382A CN 106497170 A CN106497170 A CN 106497170A
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- touch screen
- pressure disc
- rupture pressure
- hardening coat
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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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1606—Antifouling paints; Underwater paints characterised by the anti-fouling agent
- C09D5/1612—Non-macromolecular compounds
- C09D5/1625—Non-macromolecular compounds organic
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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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
- 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
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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
- 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
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Abstract
The invention belongs to UV photocureable coating field, disclose a kind of with superpower scratch resistance performance and hydrophobic oleophobic anti-pollution characteristic, the UV photocureable coating and preparation method and application for vehicular touch screen rupture pressure disc hardening coat and the cured film based on which.Coating of the present invention includes the composition of following mass fraction meter：20～50 parts of polyfunctional acrylic ester monomer, 1～5 part of polythiol monomer, 0.1～1 part of resistant auxiliary agent, 1～5 part of nanoparticle, 1～3 part of light trigger, 40～80 parts of organic solvent；Described polyfunctional acrylic ester monomer is the acrylate reactive diluent of 4～6 degrees of functionality.The present invention also provides a kind of cured film obtained based on which, has superpower resistance to steel wool scratch performance (water contact angle >=105 °), stable hydrophobic oleophobic anti-pollution characteristic and pliability concurrently, compares existing PET hardening film properties and realizes complete upgrading；The coating mode of production, UV photocurings, both improve production efficiency, reduced production cost again.
Description
Technical field
The invention belongs to UV photocureable coating field, more particularly to a kind of resistance to superpower scratch resistance performance and hydrophobic oleophobic
Dirty performance, the UV photocureable coating and preparation method and application for vehicular touch screen rupture pressure disc hardening coat and based on its
Cured film.
Background technology
Rupture pressure disc is also known as the breakage-proof glued membrane of glass, a kind of function membrane material that splashing is damaged when being for preventing glass breaking
Material.Vehicle-mounted rupture pressure disc is the one kind in rupture pressure disc subdivision field, is mainly used in the outer/inner table of vehicular touch screen glass cover-plate
Face, prevents glass fragment during glass breaking from splashing, injures user.Explosion-proof membrane structure include successively protection film layer, hardened layer,
PET base material, adhesive layer and release layer.
With the development and the improvement of people's living standards of urban construction, the trip of private savings automobile is driven more and more generally, with
When, the equipment such as carrying capacitor type automatic navigator is also provided for people's trip and is easily serviced.There is provided at which and give people more preferably
Application experience while, cause the case of personal injury also to occur therewith due to its glass breaking, therefore, for vehicle-mounted touch
The rupture pressure disc product for touching screen arises at the historic moment.Rupture pressure disc except prevent cover-plate glass fragmentation splash, because which is applied in touch screen surface,
So being proposed requirement to material appearance, scratch resistant and anti-pollution characteristic and weatherability.
At present rupture pressure disc on the market can be divided into outer explosion-proof and interior explosion-proof two kinds, be respectively used to touch screen external application and interior patch.
The vehicle-mounted explosion-proof membrane material used on domestic market relies primarily on import, conventional have Japanese prince, NEW TAC, DIC, rattan gloomy,
The brands such as Sony Chemical, these brand values are expensive, and delivery cycle is long, and after-sale service response time is long.Domestic coating at present
Rupture pressure disc product quality stability and performance balance are poor, it is impossible to compete with imported material, and the rupture pressure disc market demand is also deposited
In larger breach.
Therefore, it is badly in need of a kind of vehicular touch screen external rupture pressure disc of production domesticization on the market, with except the breakage-proof function of glass
Outward, high rigidity, superpower scratch resistance performance and anti-pollution characteristic and excellent weather resistance are had concurrently, meet downstream client to explosion-proof
Film properties of product are required and vehicular touch screen manufacturing cost is required.
Content of the invention
In order to overcome the shortcoming of above-mentioned prior art and deficiency, it is superpower that primary and foremost purpose of the invention is that offer one kind has
Scratch resistance performance and hydrophobic oleophobic anti-pollution characteristic, for vehicular touch screen rupture pressure disc hardening coat UV photocureable coating.
Another object of the present invention is to provide a kind of preparation method of above-mentioned UV photocureable coating.
Still a further object of the present invention is the application for providing above-mentioned UV photocureable coating.
Still a further object of the present invention is to provide above-mentioned a kind of superpower wear-resistant performance based on above-mentioned UV photocureable coating and resistance to
The cured film of dirty performance.
The purpose of the present invention is realized by following proposal：
A kind of with superpower scratch resistance performance and hydrophobic oleophobic anti-pollution characteristic, be used for vehicular touch screen rupture pressure disc hardening coat
UV photocureable coating, including the composition of following mass fraction meter：20～50 parts of polyfunctional acrylic ester monomer, polythiol monomer
1～5 part, 0.1～1 part of resistant auxiliary agent, 1～5 part of nanoparticle, 1～3 part of light trigger, 40～80 parts of organic solvent；
Described polyfunctional acrylic ester monomer is the acrylate reactive diluent of 4～6 degrees of functionality.
Described polyfunctional acrylic ester monomer is preferably six propylene of tetramethylol methane tetraacrylate and dipentaerythritol
At least one in acid esters, such as Sartomer, Changxing chemistry, cyanogen special, the tetramethylol methane tetraacrylate of DSM and BASF supply and
At least one in dipentaerythritol acrylate.
Described polythiol monomer be 2～4 degree of functionality polythiol monomers, preferably SC organic chemistrys Lecad803, Lecad804,
At least one in TMMP and PEMP.
Described resistant auxiliary agent is the fluorine-containing auxiliary agent of response type；The response type of preferably great Jin, DIC and SHIN-ETSU HANTOTAI's chemistry is fluorine-containing to be helped
At least one in agent；More preferably DIC RS3006, RS9002, RS9009, RS6007, RS6900 and SHIN-ETSU HANTOTAI chemistry KY-
1203rd, at least one in TIVA-4600.
Described nanoparticle is at least one in nano aluminium oxide and nano silicon；Preferably German Bi Keization
Learn (NANOBYK) nano-alumina dispersions NANOBYK-3601, NANOBYK-3602, NANOBYK-3610 for being surface-treated and
At least one in Nano silicon dioxide dispersion NANOBYK-3650.
Described light trigger is preferably in alpha-alcohol ketone photoinitiator and acylphosphine oxide photoinitiator extremely
Few one kind；More preferably 1173 light triggers of Ciba Darocur, Ciba's Darocur MBF light triggers, Bath
184 light triggers of husband Irgacure, 2022 light triggers of BASF Irgacure, 127 light triggers of BASF Irgacure
With at least one in BASF Lucirin TPO photoinitiators.
Described organic solvent is at least one in ketone and ester commonly used in the art, and which is used for diluted formulations
In monomer and auxiliary agent, improve the workability of coating.
Described ketone is preferably at least one in butanone and methyl iso-butyl ketone (MIBK).
Described ester is preferably at least one in ethyl acetate and butyl acetate.
The present invention also provides a kind of preparation of the above-mentioned UV photocureable coating for vehicular touch screen rupture pressure disc hardening coat
Method, comprises the steps of：
Polyfunctional acrylic ester monomer, resistant auxiliary agent, mercaptan, nanoparticle, light trigger are mixed with organic solvent
Uniformly, the UV photocureable coating for vehicular touch screen rupture pressure disc hardening coat is obtained.
The UV photocureable coating for vehicular touch screen rupture pressure disc hardening coat of the present invention needs to seal, keeps in dark place.
The UV photocureable coating for vehicular touch screen rupture pressure disc hardening coat of the present invention can be used to prepare rupture pressure disc.
A kind of superpower wear-resistant performance and the cured film of anti-pollution characteristic, based on of the present invention explosion-proof for vehicular touch screen
The UV photocureable coating of film hardening coat is obtained.By by of the present invention for vehicular touch screen rupture pressure disc hardening coat
UV photocureable coating coating solidify afterwards are obtained.Can pass through Slot Die, Micro-Gravure, reverse rolling method, doctor blade method, with
And the method such as spin application method is prepared.
Can be prepared by a method comprising the following steps and obtain：By described for vehicular touch screen rupture pressure disc hardening coat
UV photocureable coating is coated in PET base material, obtains wet film, is dried, UV irradiation solidifications, obtains vehicular touch screen with explosion-proof
Film cured film.
The thickness of described wet film is preferably 5～20 μm.
The temperature of described drying is preferably 50～100 DEG C.
The light energy of described UV is 300～1000mJ/cm2, more preferably 600～800mJ/cm2.
The thickness of described cured film is preferably 2～8 μm, more preferably 3～5 μm.
Described cured film has superpower scratch resistance performance and hydrophobic oleophobic anti-pollution characteristic.
The present invention is had the following advantages and beneficial effect relative to prior art：
(1) the UV photocureable coating for vehicular touch screen rupture pressure disc hardening coat of the invention, using high functionality (4
～6 degrees of functionality) acrylate monomer is material of main part, considerably increases the crosslink density of system after UV solidifications, fine and close coating
Structure is possibly realized superpower scratch resistance performance, but simultaneously brings because toughness of material is not enough and caused bending fracture and because of UV
After solidification, cubical contraction causes greatly the drawbacks such as material curling；It is aided with a small amount of polythiol monomer, notable using its superpower pliability
The fragility of hardening coat is reduced, the bending performance of material is improve, while the volume also reduced after hardening coat solidification is received
Shrinkage, solves material curling problem；Simultaneously the preferred fluorine-containing resistant auxiliary agent of response type, imparts hardening coat superpower and lasting
Hydrophobic oleophobic type anti-pollution characteristic, steel wool scrape after still keep stable water contact angle (>=105 °) and resistance to greasy dirt performance；
(2) present invention provide vehicular touch screen rupture pressure disc cured film have superpower resistance to steel wool scratch performance and
Stable hydrophobic oleophobic anti-pollution characteristic, has certain pliability concurrently, achieves complete upgrading to the performance of existing PET cured films；Adopt
Coating consumption is reduced with the coating mode of production, cost of material is reduced；Using UV photocuring improve production efficiencies, production is reduced
Cost.
Description of the drawings
Fig. 1 is resistance to steel wool test result, and wherein microscope ocular 10X, object lens 10X, A are applied for paint solidification of the present invention
Layer, B is comparative example.
Fig. 2 writes test result for oil resistivity pen, and wherein A is paint solidification coating of the present invention, and B is comparative example 2.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Reagent used in the following example can be obtained from commercial channel.
Embodiment 1：Preparation for the UV photocureable coating of vehicular touch screen rupture pressure disc hardening coat
By 38g polyfunctional acrylic ester reactive diluents (Sartomer-DPHA), the fluorine-containing resistant auxiliary agent of 0.5g response types
(ShinEtsu-KY1203) mix homogeneously with 54g organic solvents (30g methyl iso-butyl ketone (MIBK)s and 24g butanone)；Add 2g mercaptan lists
Body (SC organic chemistrys-Lecad 804), dispersed with stirring is uniform；Add 3.5g alumina nanoparticles dispersion (NANOBYK-
3602) with 2g light triggers (Irgacure 127), it is uniformly dispersed, filters, obtain hardening for vehicular touch screen rupture pressure disc
The UV photocureable coating of coating.
Embodiment 2：Preparation for the UV photocureable coating of vehicular touch screen rupture pressure disc hardening coat
By 20g polyfunctional acrylic ester reactive diluents (DSM-2830L), the fluorine-containing resistant auxiliary agent of 0.1g response types
(DIC-RS9009) mix homogeneously with 77g organic solvents (30g ethyl acetate, 30g methyl iso-butyl ketone (MIBK)s and 17g butyl acetates)；
1g polythiol monomers (SC organic chemistry-PEMP) are added, dispersed with stirring is uniform；Add 1g alumina nanoparticles dispersions
(NANOBYK-3602) and 1g light triggers (Darocur MBF), it is uniformly dispersed, filters, obtains for vehicular touch screen with anti-
The UV photocureable coating of quick-fried film hardening coat.
Embodiment 3：Preparation for the UV photocureable coating of vehicular touch screen rupture pressure disc hardening coat
By 50g polyfunctional acrylic ester reactive diluents (Eternal-EM241), the fluorine-containing resistant auxiliary agent of 1.0g response types
(DIC-RS6007) mix homogeneously with 40g organic solvents (15g ethyl acetate and 25g methyl iso-butyl ketone (MIBK)s)；Add 5g mercaptan lists
Body (SC organic chemistrys-Lecad 803), dispersed with stirring is uniform；Add 1g Nano particles of silicon dioxide dispersion (NANOBYK-
3650) and 3g light triggers (1.5g Lucirin TPO and 1.5g Irgacure 184), be uniformly dispersed, filter, obtain for
The UV photocureable coating of vehicular touch screen rupture pressure disc hardening coat.
Embodiment 4：Preparation for the UV photocureable coating of vehicular touch screen rupture pressure disc hardening coat
By 30g polyfunctional acrylic ester reactive diluents (Cytec-DPHA), the fluorine-containing resistant auxiliary agent of 0.3g response types
(ShinEtsu-KY1203) mix homogeneously with 61g organic solvents (36g butanone and 25g butyl acetates)；Add 1.5g polythiol monomers
(SC organic chemistrys-Lecad 804), dispersed with stirring is uniform；Add 5g alumina nanoparticles dispersions (NANOBYK-3610)
With 2g light triggers (Darocur 1173), it is uniformly dispersed, filters, obtains using for vehicular touch screen rupture pressure disc hardening coat
UV photocureable coating.
Embodiment 5：Preparation for the UV photocureable coating of vehicular touch screen rupture pressure disc hardening coat：
By 35g polyfunctional acrylic ester reactive diluents (Eternal-EM265), the fluorine-containing resistant auxiliary agent of 1.0g response types
(DIC-RS6900) mix homogeneously with 57g solvents (30g methyl iso-butyl ketone (MIBK)s and 27g butanone)；(SC is organic to add 3g polythiol monomers
Chemistry-PEMP), dispersed with stirring is uniform；Add 2g alumina nanoparticles dispersions (NANOBYK-3601) and 2g light triggers
(Irgacure 127), is uniformly dispersed, and filters, and obtains applying for the UV photocurings of vehicular touch screen rupture pressure disc hardening coat
Material.
Comparative example 1
By 38g polyfunctionality urethane acrylate oligomers (Cytec-EB8415,10 degree of functionality UV curing type scratch resistance trees
Fat), 0.5g response types fluorine-containing resistant auxiliary agent (ShinEtsu-KY1203) and 54g organic solvents (30g methyl iso-butyl ketone (MIBK)s and 24g
Butanone) mix homogeneously；2g polythiol monomers (SC organic chemistrys-Lecad 804) are added, dispersed with stirring is uniform；Add 3.5g oxidations
Aluminum nanoparticles dispersion (NANOBYK-3602) and 2g light triggers (Irgacure 127), are uniformly dispersed, and filter, are used
UV photocureable coating in vehicular touch screen rupture pressure disc hardening coat.
Comparative example 2
By 38g polyfunctional acrylic ester reactive diluents (Sartomer-DPHA), 0.5g response type levelling agent (BYK-
UV3505) mix homogeneously with 54g organic solvents (30g methyl iso-butyl ketone (MIBK)s and 24g butanone)；(SC is organic to add 2g polythiol monomers
804), dispersed with stirring is uniform for chemistry-Lecad；Add 3.5g alumina nanoparticles dispersions (NANOBYK-3602) and 2g light
Initiator (Irgacure127), is uniformly dispersed, and filters, obtains the UV light for vehicular touch screen rupture pressure disc hardening coat
Coating material solidified.
Comparative example 3
By 38g polyfunctional acrylic ester reactive diluents (Sartomer-DPHA), the fluorine-containing resistant auxiliary agent of 0.5g response types
(ShinEtsu-KY1203) mix homogeneously with 56g organic solvents (30g methyl iso-butyl ketone (MIBK)s and 26g butanone)；Add 3.5g oxidations
Aluminum nanoparticles dispersion (NANOBYK-3602) and 2g light triggers (Irgacure 127), are uniformly dispersed, and filter, are used
UV photocureable coating in vehicular touch screen rupture pressure disc hardening coat.
Comparative example 4
By 38g polyfunctional acrylic ester reactive diluents (Sartomer-DPHA), the fluorine-containing resistant auxiliary agent of 0.5g response types
(ShinEtsu-KY1203) mix homogeneously with 57.5g organic solvents (30g methyl iso-butyl ketone (MIBK)s and 27.5g butanone)；Add 2g sulfur
Alcohol monomer (SC organic chemistrys-Lecad 804), dispersed with stirring is uniform；2g light triggers (Irgacure 127) are added, dispersion is
Even, filter, obtain the UV photocureable coating for vehicular touch screen rupture pressure disc hardening coat.
Effect example
The preparation of PET hardening coats：The PET film that UV photocureable coating 2～4g bars are coated area A4 paper sizes
On, 80 DEG C of heat drying 2min, UV irradiation solidification, energy is 600～800mJ/cm2, 3～6 μm of the build of solidification.To by
The PET hardening coat combination properties of the coating preparation of embodiment 1～5 and comparative example 1～4 are evaluated, and wherein, detect thickness
Method is shown in JIS C-2318；The method of detection light transmittance is shown in JIS K-7105；The method of detection mist degree is shown in JIS K-7105；Detection
The method of hardness is shown in JIS K-5600；The method of detection adhesive force is shown in JIS K-5600；The method of detection crocking resistance is steel
Velvet (load 1500g) comes and goes 1000 times；The method of detection anti-pollution characteristic places 20min after smearing for zebra black oily pen,
Wiped with paper.As a result referring to table 1 and Fig. 1, Fig. 2.
Wherein, in Fig. 1 hardening coat of the present invention after steel wool (load 1500g) comes and goes 1000 times, material surface is without bright
Aobvious cut, and comparative example is after steel wool (load 1500g) comes and goes 20 times, its material surface scratch is serious.In Fig. 2, at this
Rear person's handwriting is smeared with oil pen on bright hardening coat substantially to shrink, is gently wiped after placing 3h, and comparative example
On person's handwriting ungauged regions, and place 5min after cannot wipe.
1 PET hardening coat comprehensive performance evaluations of table
Note：In anti-pollution characteristic, * * are easily wiping；* it is erasable；-- for not erasable.
The preparation of vehicular touch screen rupture pressure disc：OCA glue 5～10g tetrahedron blade applicators are coated above-mentioned hardening
The reverse side of film, 60 DEG C × 2min+90 DEG C × 1min+130 DEG C × 1min heat dryings and solidification, the dry glue thickness 20～50 of solidification
μm.Rupture pressure disc by embodiment 1～5 and the coating preparation of comparative example 1～4 is fitted on the microscope slide that mist degree is 0%, evaluated
Weather resistance.
Wherein, the detection method of high temperature ageing is 85 DEG C of placement 1000h, and surface is washed and dries up rear room temperature placement 30min, surveys
Examination light transmittance and mist degree；
The detection method of low temperature aging is -40 DEG C of placement 1000h, and surface is washed and dries up rear room temperature placement 30min, tests thoroughly
Light rate and mist degree；
Tropical deterioration side detection method is that 85 DEG C × 85%RH places 1000h, and surface washing dries up rear room temperature and places
30min, test light transmittance and mist degree；
The detection method of thermal shock be 85 DEG C × 120min → 25 DEG C × 5min → -40 DEG C × 120min → 25 DEG C ×
5min is circulated for one, places 1000 circulations, and surface washing dries up rear room temperature and places 30min, test light transmittance and mist degree；
The detection method of salt fog resistance is 5%NaCl solution, and 35 DEG C of process 96h, washing test light transmittance and mist after drying
Degree, the results are shown in Table 2.
2 rupture pressure disc weather resistance of table is evaluated
Can be seen that from the coating performance data of embodiment 1～5 in table 1 and lived using the acrylate through formulation optimization
Property the hardening coat for preparing of diluent, polythiol monomer, the fluorine-containing auxiliary agent of response type, nanoparticle dispersion liquid and light trigger there is height
Hardness, superpower resistance to steel wool scratch performance and stable hydrophobic oleophobic anti-pollution characteristic, and using preferred ingredient not on year-on-year basis
The coating performance difference of the coating preparation that example is mixed is little.
The polyfunctionality polyurethane acrylate resin of equivalent of comparative example 1 replaces polyfunctional acrylic ester activity dilution
Agent, coating hardness prepared therefrom are reduced to 2H, and steel wool has obvious cut after scraping, it was demonstrated that polyfunctional acrylic ester activity
Diluent increased the crosslink density of coating system, substantially improve the hardness and resistance to steel wool scratch performance of coating, and which is to resistance to
Scrape performance impact maximum.
Comparative example 2 uses the fluorine-containing auxiliary agent of the response type levelling agent surrogate response type of equivalent, coating steel wool prepared therefrom to scrape
There are shadow scratch, water contact angle substantially to reduce after wiping, it is more difficult that oil pen writes wiping, it was demonstrated that the fluorine-containing auxiliary agent of response type and coating
System crosslinks reaction so as to be anchored in coating surface, permanently improves coating hydro-oleophobicity, gives hardening coat excellent
Different and stable anti-pollution characteristic, while also improve scratch resistance performance to a certain extent.
Comparative example 3 replaces polythiol monomer with equivalent solvent, and coating hardness prepared therefrom is promoted to 4H, but pliability is bright
Aobvious decline, scratch resistance performance and adhesive force also have to a certain degree to be reduced, it was demonstrated that mercaptan serves weight in terms of film flexibility is improved
Act on, while also because the presence of mercaptan, the coating for making crosslinking fine and close has certain pliability concurrently, acted on by external force in coating
When be conducive to Stress Release, in certain journey, therefore also improve scratch resistance performance and the adhesive force of coating.
Comparative example 4 replaces nanoparticle dispersion liquid with equivalent solvent, and coating steel wool prepared therefrom has after scraping substantially
Cut, it was demonstrated that the presence of nanoparticle can be obviously improved coating scratch resistance performance, but the nanoparticle of excess also results in material
Material mist degree becomes big.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-described embodiment
Limit, other any spirit without departing from the present invention and the change, modification, replacement that is made under principle, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of UV photocureable coating for vehicular touch screen rupture pressure disc hardening coat, it is characterised in that including following mass parts
The composition of number meter：20～50 parts of polyfunctional acrylic ester monomer, 1～5 part of polythiol monomer, resistant auxiliary agent 0.1～1 part, nanometer
1～5 part of particle, 1～3 part of light trigger, 40～80 parts of organic solvent；
Described polyfunctional acrylic ester monomer is the acrylate reactive diluent of 4～6 degrees of functionality.
2. the UV photocureable coating for vehicular touch screen rupture pressure disc hardening coat according to claim 1, its feature exist
In：Described polyfunctional acrylic ester monomer be in tetramethylol methane tetraacrylate and dipentaerythritol acrylate extremely
Few one kind；Described polythiol monomer is 2～4 degree of functionality polythiol monomers；Described resistant auxiliary agent is the fluorine-containing auxiliary agent of response type；Described
Nanoparticle be nano aluminium oxide and nano silicon at least one；Described light trigger is Alpha-hydroxy ketone light
At least one in initiator and acylphosphine oxide photoinitiator；Described organic solvent is at least in ketone and ester
Kind.
3. the UV photocureable coating for vehicular touch screen rupture pressure disc hardening coat according to claim 2, its feature exist
In：Described ketone is at least one in butanone and methyl iso-butyl ketone (MIBK)；Described ester is in ethyl acetate and butyl acetate
At least one.
4. the UV photocureable coating for vehicular touch screen rupture pressure disc hardening coat according to claim 1, its feature exist
In：Described polyfunctional acrylic ester monomer is the tetramethylolmethane 4 third of Sartomer, Changxing chemistry, special cyanogen, DSM and BASF
At least one in olefin(e) acid ester and dipentaerythritol acrylate；Described polythiol monomer be SC organic chemistry Lecad803,
At least one in Lecad804, TMMP and PEMP；Described resistant auxiliary agent be DIC RS3006, RS9002, RS9009,
At least one in RS6007, RS6900 and SHIN-ETSU HANTOTAI chemistry KY-1203, TIVA-4600.
5. the UV photocureable coating for vehicular touch screen rupture pressure disc hardening coat according to claim 1, its feature exist
In：Described nanoparticle be German Bi Ke chemical surface treatments nano-alumina dispersions NANOBYK-3601,
At least one in NANOBYK-3602, NANOBYK-3610 and Nano silicon dioxide dispersion NANOBYK-3650；Described
Light trigger is 1173 light triggers of Ciba Darocur, Ciba's Darocur MBF light triggers, BASF
184 light triggers of Irgacure, 2022 light triggers of BASF Irgacure, 127 light triggers of BASF Irgacure and
At least one in BASF Lucirin TPO photoinitiators.
6. the UV photocureable coating for vehicular touch screen rupture pressure disc hardening coat described in a kind of any one of Claims 1 to 5
Preparation method, it is characterised in that comprise the steps of：
Polyfunctional acrylic ester monomer, resistant auxiliary agent, mercaptan, nanoparticle, light trigger are mixed homogeneously with organic solvent,
Obtain the UV photocureable coating for vehicular touch screen rupture pressure disc hardening coat.
7. the cured film of a kind of superpower wear-resistant performance and anti-pollution characteristic, it is characterised in that based on described in any one of Claims 1 to 5
The UV photocureable coating for vehicular touch screen rupture pressure disc hardening coat obtain.
8. the cured film of superpower wear-resistant performance according to claim 7 and anti-pollution characteristic, it is characterised in that by include as
The method of lower step is prepared：By described in any one of Claims 1 to 4 for vehicular touch screen rupture pressure disc hardening coat
UV photocureable coating is coated in PET base material, obtains wet film, is dried, UV irradiation solidifications, obtains vehicular touch screen with explosion-proof
Film cured film.
9. the cured film of superpower wear-resistant performance according to claim 8 and anti-pollution characteristic, it is characterised in that：The wet film
Thickness is 5～20 μm；The temperature of the drying is 50～100 DEG C；The light energy of the UV is 300～1000mJ/cm2.
10. the UV photocureable coating for vehicular touch screen rupture pressure disc hardening coat described in any one of Claims 1 to 5 is in system
Application in standby rupture pressure disc.
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