CN104877544B - UV photo-curing elastic self-repairing brightening paint composition - Google Patents
UV photo-curing elastic self-repairing brightening paint composition Download PDFInfo
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- CN104877544B CN104877544B CN201510240896.5A CN201510240896A CN104877544B CN 104877544 B CN104877544 B CN 104877544B CN 201510240896 A CN201510240896 A CN 201510240896A CN 104877544 B CN104877544 B CN 104877544B
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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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
- C08G18/348—Hydroxycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/6692—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/34
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/671—Unsaturated compounds having only one group containing active hydrogen
- C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/83—Chemically modified polymers
- C08G18/831—Chemically modified polymers by oxygen-containing compounds inclusive of carbonic acid halogenides, carboxylic acid halogenides and epoxy halides
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- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention provides a UV photo-curing elastic self-repairing brightening paint composition. The paint composition comprises the following ingredients in parts by weight: 10 to 70 parts of elastic photo-curing resin, 10 to 50 parts of photopolymerization monomer, 2 to 5 parts of photoinitiator and 0.05 to 1 part of additive. The UV photo-curing elastic self-repairing brightening paint composition can be smeared on an optical PET plastic base material; after being cured by ultraviolet light, a coating is excellent in elasticity and also good in attachment force, wear resistance and scratch resistance.
Description
Technical field
The invention belongs to ultraviolet-curing paint technical field, and in particular to a kind of UV light-cured types elasticity selfreparing blast
Coating composition.
Background technology
Important accessory and brightness source that backlight module shows as LCD, the brightness to liquid crystal display has extremely important
Effect.People attempt various ways and go to improve LCD display brightness in terms of backlight module.Light guide plate and lower floor's polaroid it
Between add brightness enhancement film be one of method therein.
By mould pressing process, prismatic structure special on mould is transferred on base material and obtains brightness enhancement film.Wherein, brightness enhancement film
The quality of coating property can determine the quality of blast film properties, be the key for making brightness enhancement film.In line flow procedure,
Especially the wedge angle of brightness enhancement film understands unavoidably the coating of surface scratch during cutting, causes the prism structure in coating to damage
Hinder and become substandard products, affect production efficiency and yield rate, traditional technique is that layer protecting film is pasted in coating.This technique is numerous
The generation that coating is damaged that prevents that is miscellaneous and being unable to essence.
Found by the retrieval to existing document, Japan Patent JP2009-144065 provides a kind of aqueous elastic UV light
Cure coating compositions, it includes a kind of urethane acrylate aqueous dispersion, many official's polyurethane acrylate resins and organic
Particle.But, the performed polymer synthesis phase of urethane acrylate aqueous dispersion synthesis, needs are completely anhydrous, therefore to technique
Control requires higher, consersion unit and raw material are intended to carry out water removal operation, cause technology controlling and process complicated, and production time length lacks
Point.In addition, the coating is only applicable to common occasion, do not refer to suitable for blast coating.
Chinese patent CN102585575 discloses a kind of solvent-borne type
The UV elastic coatings of main body.There is stably dispersing sex chromosome mosaicism due to using inorganic particulate, system.In addition, the coating composition
Performance embodies elastic self-healing properties in addition to paper tape anti-wear performance, not and resistance to sharp thing scratches performance.And the combination
Thing contains organic solvent, haves the shortcomings that environmental protection, production security, complex process, high cost.In addition, the coating is equally only fitted
For common occasion, do not refer to suitable for blast coating.
The content of the invention
It is an object of the invention to overcome the shortcomings of that above-mentioned prior art is present, there is provided a kind of solvent-free UV light-cured types
Elastic selfreparing blast coating composition, coating has excellent elasticity after UV-light cured, while with fabulous adhesive force,
Wear-resisting and resistance to sharp thing scratches performance.
In the blast film preparation of backlight module, traditional method of pasting protective film in coating, the group of the present invention are compared
The prism structure that compound is formed Jing after ultraviolet light polymerization have while there is self-repair function excellent wear-resisting scratch resistance performance and
Extremely excellent base material adhesive force, can at short notice resilience and repair cut, anti-scratching wearproof improve yield rate.The present invention is
It is achieved through the following technical solutions：
The invention provides a kind of UV light-cured types elasticity selfreparing blast coating composition, it includes following parts by weight
Each component：
Wherein, the elastic light-cured resin is polypropylene glycol and hexamethylene diisocyanate, and dihydromethyl propionic acid is held
Three official elastic polyurethane propylene of the side chain that hydroxy acrylate and glycidyl methacrylate are synthesized with hydroxyl
Acid esters, the structural formula of three official elastic polyurethane acrylate of the side chain with hydroxyl is as follows：
1.4≤n≤16.9；
By structural formula as can be seen that the resin has the architectural feature that soft and hard segments have concurrently.Soft section derives from polypropylene glycol, firmly
The carbamic acid ester chain that section is formed from hexamethylene diisocyanate and bishydroxymethyl propanoic acid and terminal hydroxy group acrylate
Duan Zucheng, wherein carbamate structures can form hydrogen bond.Exactly because this structure, makes gained resin have excellent resilience
With wear-resisting scratch resistance performance.In addition, side chain contains hydroxyl so that the resin has the adhesive force splendid to PET base material.
The photo polymerization monomer is single official esters of acrylic acid photo polymerization monomer of the refractive index higher than 1.53 and/or double official's propylene
Esters of gallic acid photo polymerization monomer, preferably, simple function acrylic acid of the photo polymerization monomer selected from refractive index higher than 1.53
Ester, or the mixture of double official's acrylate monomers and monofunctional acrylate.In the present invention, the monofunctional acrylate master
The effect of reactive diluent is played, viscosity can have both been reduced in order to be coated with, moreover it is possible to adhesive force of the film to base material is improved.Institute
State double official's acrylate monomers and the basic properties such as coating attachment, wear-resisting, hardness are mainly provided.
Preferably, monofunctional acrylate of the index of refraction higher than 1.53 includes 2- Phenoxyethyl acrylic acid
Ester, thiophenyl acrylate, ethoxyquin phenoxy group acrylate, adjacent phenyl benzene ethoxyethyl acrylate, 2- (p- isopropyls
Phenyl-phenoxy group)-hexyl olefin(e) acid ester, 2- hydroxyl -3- phenyl benzene ethoxycarbonyl propyl acrylate, phenoxy benzyl propylene acid esters,
One or more in benzyl acrylate, benzyl methacrylate；Double official acrylate of the refractive index higher than 1.53
Monomer includes ethoxylated bisphenol A diacrylates, ethoxy diphenyl base fluorenes diacrylate, ethoxylated bisphenol S diacrylates
In one or more.
Preferably, the light trigger is selected from 1- hydroxycyclohexyl phenyl ketones, 2- hydroxy-2-methyl -1- benzene
Base -1- acetone, 2,4,6- trimethylbenzoy-dipheny phosphine oxides, phenyl double (2,4,6- trimethylbenzoyls) oxidation
One or more in phosphine, styrax methyl phenyl ethers anisole；
Preferably, one or more of the auxiliary agent in levelling agent, defoamer, polymerization inhibitor.
Preferably, the side chain with hydroxyl three official's elastic polyurethane acrylate preparation method include as
Lower step：
By polypropylene glycol, hexamethylene diisocyanate and dihydromethyl propionic acid react at 75~80 DEG C, obtain side chain
The polyurethane resin of carboxylic terminal isocyanate group；
50~55 DEG C are cooled to, terminal hydroxy group acrylate is added, after reaction, carboxylic pair of official's polyurethane third of side chain is obtained
Olefin(e) acid ester；
Glycidyl methacrylate is added, 90~95 DEG C are warming up to, opening is carried out, 100% is obtained and is consolidated
The side chain of content contains three official's elastic polyurethane acrylate of hydroxyl.
Preferably, the polypropylene glycol, hexamethylene diisocyanate, dihydromethyl propionic acid, terminal hydroxy group propylene
Acid esters, the ratio of the mole dosage of glycidyl methacrylate are (0.81-0.99)：2：(0.19-0.01)：2：(0.19-
0.01), preferably 0.9：2：0.1：2：0.1.
Preferably, the molecular weight of the polypropylene glycol (PPG) is 100~2000, preferably 200~1000, such as
Any one in PPG200, PPG400, PPG600, PPG800, PPG1000 and PPG2000 etc., more preferably molecular weight
Any one in 300~800, such as PPG400, PPG600, PPG800 etc., most preferably PPG600.
Preferably, the terminal hydroxy group acrylate is 2-(Acryloyloxy)ethanol, hydroxyethyl methylacrylate, acrylic acid
One or two in hydroxy butyl ester and methacrylate, preferably 2-(Acryloyloxy)ethanol and hy-droxybutyl；It is optimum
Elect 2-(Acryloyloxy)ethanol as.
Preferably, the levelling agent selected from dimethyl polysiloxane copolymer, polysiloxanes~copolyether,
Siloxane-Oxyalkylene Copolymers；The defoamer is poly- selected from polysiloxanes macromolecule, mineral oil antifoam agent or polyether-modified dimethyl
Silicone copolymers；The polymerization inhibitor is selected from MEHQ, hydroquinone or 2,6- toluene di-tert-butyl phenol.
Preferably, the photo polymerization monomer is single official's esters of acrylic acid photo polymerization monomer and double official's esters of acrylic acids
The compositionss of photo polymerization monomer, wherein, the weight ratio of double official's acrylate monomers and monofunctional acrylate is (1~2.5):1.
The coating composition of the present invention, can form the cross-linked network with soft section and hard section region after ultraviolet light polymerization
Network.Elastic part therein is by the polypropylene glycol soft section partial contribution in three official's elastic polyurethane acrylates, hard section area
The amino first that domain is formed by hard section from hexamethylene diisocyanate and bishydroxymethyl propanoic acid and terminal hydroxy group acrylate
Acid esters segment part, the refractive index with rigid backbone are higher than that 1.53 double official's acrylate monomers and they and three officials are elastic
The cross-linked network that polyurethane acrylate resin and refractive index are formed after the single official's acrylate monomer UV photopolymerization higher than 1.53
Structure ensures that coating has good elasticity self-healing properties simultaneously to provide, also with scratch resistance, anti-wear performance.
Compared with prior art, the present invention has following beneficial effect：
1st, the UV curing types elasticity selfreparing blast coating composition simple production process prepared using the present invention, especially
The preparation condition of three official elastic polyurethane acrylate of the side chain with hydroxyl is simple, and not adopting can under solvent, bulk conditions
The product relatively low to obtain viscosity at ambient temperature, it is possible to directly as preparation of raw material coating composition, and eliminate the mistake except solvent
Journey, has saved cost of material and power cost.In addition, say from environmental angle, organic volatile also will not be discharged in air and
Affect environment.
2nd, UV curing types of the invention elasticity selfreparing blast coating composition does not contain any organic solvent, energy-conserving and environment-protective,
Process costs can be reduced.
3. the adjustable refractive index of the present composition is 1.53~1.58 selfreparing blast coating.
4th, the present composition allotment blast coating photocuring after the coating resilience time within 3 seconds, with good
Elastic selfreparing effect can well resist the scuffing of sharp thing.
5th, coating composition of the present invention also has the performances such as good film-forming property, the good, good attachment of the demoulding, can well preserve rib
Mirror structure, light source is preferably gathered so as to improve light source utilization rate.
6th, the good weatherability of coating composition of the present invention, the hot and humid testing coating surfaces of Jing are surveyed without difference, attachment fastness
It is 5B without difference before and after examination.
Description of the drawings
The detailed description by reading non-limiting example made with reference to the following drawings, the further feature of the present invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the nuclear-magnetism of three official elastic polyurethane acrylate of the side chain with hydroxyl that in the present invention prepared by embodiment 1
Resonance hydrogen spectrogram.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, some deformations and improvement can also be made.These belong to this
Bright protection domain.
As shown in table 1, side chain described in table carries the poly- ammonia of three officials elasticity of hydroxyl to the formula of embodiment 4~8 and comparative example
Ester acrylate is prepared by the following method and obtains：
Synthesis example 1The present embodiment is related to a kind of synthesis of three official elastic polyurethane acrylate As of side chain with hydroxyl
To in 100 milliliters of four-hole bottles for being furnished with drying nitrogen, mechanical agitation, condenser, thermometer and oil bath heating, add
PPG600 (30 grams, 0.05 mole) Jing after 100 DEG C of vaccum dewaterings, be subsequently adding hexamethylene diisocyanate (HDI, 18.7
Gram, 0.11 mole) and dihydromethyl propionic acid (DMPA, 0.75 gram, 0.0056 mole), 75~80 DEG C are warming up to, react 3 hours.
Then 50~55 DEG C are cooled to, (HEA, 12.90 grams, 0.11 rubs to add MEHQ (0.19 gram) and 2-(Acryloyloxy)ethanol
You), to react 2 hours, the reaction of TLC analysis shows 2-(Acryloyloxy)ethanol is finished.Then glycidyl methacrylate is added
(GMA, 1.58 grams, 0.011 mole) and catalyst benzyl triethyl ammonium bromide (0.064 gram), are warming up to 90~95 DEG C, reaction 2
~3 hours, TLC was analyzed to glycidyl methacrylate and is terminated reaction after completion of the reaction.Obtain the side chain of 100% solid content
The three official elastic polyurethane acrylate A with hydroxyl.Room temperature is light yellow viscous liquid.Viscosity during room temperature is 3000cps,
Refractive index is 1.491.Its structural formula is as follows：
Here n=10, n is determined by the molecular weight of polypropylene glycol.
Its proton nmr spectra is as shown in Figure 1.The two comparative examples are to illustrate that contrasting synthesis example 1 adopts acrylic acid hydroxyl
Butyl ester (HBA), resilience can improve, but scratch resistance is poor, and its structure is similar with synthesis example 1, so refractive index is more close；Contrast is closed
It is that scratch resistance is good, but resilience is poor in order to illustrate to replace PPG600 synthesis using PPG400 into example 2.
Contrast synthesis example 1：
To in 100 milliliters of four-hole bottles for being furnished with drying nitrogen, mechanical agitation, condenser, thermometer and oil bath heating, add
PPG600 (18 grams, 0.03 mole) Jing after 100 DEG C of vaccum dewaterings, be subsequently adding hexamethylene diisocyanate (HDI, 11.21
Gram, 0.067 mole) and dihydromethyl propionic acid (DMPA, 0.45 gram, 0.0033 mole), 80 DEG C are warming up to, react 3 hours.Then
50~55 DEG C are cooled to, MEHQ (0.12 gram) and hy-droxybutyl (HBA, 9.61 grams, 0.067 mole) is added,
Reaction 2 hours, TLC analysis shows hy-droxybutyls (HBA) reactions are finished.Then glycidyl methacrylate is added
(GMA, 9.45 grams, 0.0067 mole) and catalyst benzyl triethyl ammonium bromide (0.041 gram), are warming up to 90 DEG C, reaction 2~3
Hour, TLC is analyzed to glycidyl methacrylate (GMA) and is terminated reaction after completion of the reaction.Obtain 100% side chain for containing admittedly
The three official elastic polyurethane acrylate C with hydroxyl.Room temperature is light yellow viscous liquid.Viscosity during room temperature is 2850cps.
Contrast synthesis example 2
To in 100 milliliters of four-hole bottles for being furnished with drying nitrogen, mechanical agitation, condenser, thermometer and oil bath heating, add
PPG400 (24 grams, 0.06 mole) Jing after 100 DEG C of vaccum dewaterings, be subsequently adding hexamethylene diisocyanate (HDI, 22.43
Gram, 0.13 mole) and dihydromethyl propionic acid (DMPA, 0.89 gram, 0.0067 mole), 80 DEG C are warming up to, react 3 hours.Then
50~55 DEG C are cooled to, MEHQ (0.19 gram) and 2-(Acryloyloxy)ethanol (HEA, 15.48 grams, 0.13 mole) is added,
Reaction 2 hours, TLC analysis shows 2-(Acryloyloxy)ethanols (HEA) reactions are finished.Then glycidyl methacrylate is added
(GMA, 1.58 grams, 0.011 mole) and catalyst benzyl triethyl ammonium bromide (0.064 gram), are warming up to 90 DEG C, and reaction 2~3 is little
When, TLC is analyzed to glycidyl methacrylate (GMA) and is terminated reaction after completion of the reaction.Obtain the 100% side chain band for containing admittedly
There are three official elastic polyurethane acrylate B of hydroxyl.Room temperature is light yellow viscous liquid.Viscosity during room temperature is 2850cps.
Table 1
Contrast synthesis example 1 adopts butyl acrylate, and resilience can improve, but scratch resistance is poor.Its structure and the class of synthesis example 1 in fact
Seemingly, so refractive index is more close.Contrast synthesis example 2 is to replace PPG600 synthesis using PPG400, and scratch resistance is good, but resilience
Difference.
Embodiment 1~5
Embodiment 1~5 each provides a kind of ultraviolet light polymerization elasticity self-healing coatings compositionss, and each compositionss are corresponding
Raw material components, parts by weight and correspondence performance test are as shown in table 1；
Respectively by the corresponding raw material components of each embodiment by its parts by weight mixing, middling speed is disperseed 2 hours, is filtered, obtains final product
Corresponding elastic selfreparing UV light solidifying paint compositions.
The material enumerated in table 1 is the representative in aforementioned multiple technologies scheme, and during actual enforcement institute in table is not limited to
Row material.The monofunctional acrylate also can select thiophenyl acrylate, ethoxyquin phenoxy group acrylate, adjacent phenyl benzene
Ethoxyethyl acrylate, 2- (p- cumenyl-phenoxy group)-hexyl olefin(e) acid ester, 2- hydroxyl -3- phenyl benzene ethoxy-cs
One or more in base acrylate, benzyl acrylate, benzyl methacrylate.Described pair of official's acrylate monomer is also
Optional ethoxylated bisphenol S diacrylates.The light trigger may be selected from 1- hydroxycyclohexyl phenyl ketones, 2- hydroxyls~-
Double (2,4,6~the trimethylbenzenes of 2- methyl isophthalic acids-phenyl -1- acetone, 2,4,6- trimethylbenzoy-dipheny phosphine oxides, phenyl
Formoxyl) phosphine oxide, one or more in styrax methyl phenyl ethers anisole.The levelling agent selected from dimethyl polysiloxane copolymer,
Polysiloxane-polyether copolymer, Siloxane-Oxyalkylene Copolymers.The defoamer is selected from polysiloxanes macromolecule, mineral oil froth breaking
Agent, polyether-modified dimethyl polysiloxane copolymer etc..The polymerization inhibitor is selected from MEHQ, hydroquinone, 2,6- bis-
Tert-butyl-p-cresol.
Specific performance detection project and corresponding method are as follows in table 1：
First, refractive index
The high refractive index brightness enhancement coating composition for preparing drop 2~3 is dropped in into the frosting of Abbe refractometer instrument entering light prism
On, read refractive index data and corresponding temperature.
Method of testing：The refractive index of coating composition is determined using Abbe refractometer instrument
Appraisal procedure：Read refractive index data and corresponding temperature.
2nd, the resilience time
The specimen page resilience time is tested using the spur of 250um thickness PET base materials.
Method of testing：Time required for visually observation cut disappears.
Appraisal procedure：Manual time-keeping.
3rd, flatness
Ready-made brightness enhancement film specimen page is cut into into A4 paper sizes to be entirely layered in horizontal table top, whether observation specimen page is smooth
Without warpage.
Method of testing：Visually whether observation test specimen page is smooth.
Appraisal procedure：Specimen page is entirely attached in horizontal table top, and edge is not above the warpage of 0.5mm.
4th, adhesive force
Using Pressure sensitive adhesive tape, cross-cut methods are tested specimen page adhesive force.
Appraisal procedure：Do not come off completely for excellent, having come off on a small quantity for good, comes off in a large number for difference.
5th, briliancy
A4 paper size specimen pages are cut, smooth placement is measured using Optin series of X Y TABLE brightness photometers.
Appraisal procedure：Meansigma methodss are calculated by measuring instrument automatically, the uniformity judges OK/NG, automatically generates automatically
EXCEL forms.
6th, specimen page outward appearance
Whether observation specimen page coating has the open defect such as rainbow stricture of vagina and cut, broken string.
Method of testing：Specimen page outward appearance is tested in visually observation.
Appraisal procedure：Specimen page picture on surface is complete full without rainbow.
7th, wear-resisting experiment
Method of testing takes A4 paper size specimen pages and is fixed on abrasion performance testing machine, and in specimen page coated surface polaroid, sample are close to
Upper heavy burden 500g counterweights are opened, abrasion performance testing machine is then turned on, is come and gone 5 times.
Appraisal procedure：Prism coating structure on blast piece is not damaged, is wear-resisting excellent.
8th, water boiling resistance experiment
Method of testing：Specimen page is put in boiling water to boil and take out after 30min the attachment of cross-cut methods testing coating.
Appraisal procedure：Do not come off completely for excellent, having come off on a small quantity for good, comes off in a large number for difference.
As shown in Table 1, compared with Example 5, although resilience is lifted, wear-resisting scratch resistance is deteriorated comparative example 1, explanation
The resin of 2-(Acryloyloxy)ethanol synthesis is replaced using hy-droxybutyl, scratch resistance is poor.Comparative example 2 compared with Example 5, is adhered to
Power, ageing-resistant performance and briliancy are fine, maintain an equal level therewith, but the resilience time is long, i.e., self-reparing capability is deteriorated.Illustrate to adopt
PPG400 replaces PPG600 resiliences to be deteriorated.Comparative example 3 compared with Example 5, in illustrating the composition system of the present invention, is adopted
It is poly- commercially available three officials elasticity to be compared with three hydroxyl official's urethane acrylates of the side chain having concurrently from the Soft hard segment structure for synthesizing
Urethane acrylate, can effectively improve the performances such as resilience, wear-resisting scratch resistance, adhesive force and briliancy.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can within the scope of the claims make various modifications or modification, this not shadow
Ring the flesh and blood of the present invention.
Claims (9)
1. a kind of UV light-cured types elasticity selfreparing blast coating composition, it is characterised in that including each of following parts by weight
Component：
Wherein, the elastic light-cured resin is polypropylene glycol and hexamethylene diisocyanate, dihydromethyl propionic acid, terminal hydroxy group
Three official elastic polyurethane acrylate of the side chain that acrylate and glycidyl methacrylate are synthesized with hydroxyl,
The structural formula of three official elastic polyurethane acrylate of the side chain with hydroxyl is as follows：
1.4≤n≤16.9；
The photo polymerization monomer is single official esters of acrylic acid photo polymerization monomer of the refractive index higher than 1.53 and/or double official's acrylate
Class photo polymerization monomer；
The preparation method of three official elastic polyurethane acrylate of the side chain with hydroxyl comprises the steps：
By polypropylene glycol, hexamethylene diisocyanate and dihydromethyl propionic acid react at 75~80 DEG C, obtain side chain containing carboxylic
The polyurethane resin of the terminal isocyanate group of base；
50~55 DEG C are cooled to, terminal hydroxy group acrylate is added, after reaction, carboxylic pair of official's polyurethane acroleic acid of side chain is obtained
Ester；
Glycidyl methacrylate is added, 90~95 DEG C are warming up to, opening is carried out, 100% solid content is obtained
Side chain contain three official's elastic polyurethane acrylate of hydroxyl.
2. a kind of UV light-cured types elasticity selfreparing blast coating composition as claimed in claim 1, it is characterised in that described
Monofunctional acrylate of the index of refraction higher than 1.53 includes 2- phenoxyethyl acrylates, thiophenyl acrylate, ethoxyquin
Phenoxy group acrylate, adjacent phenyl benzene ethoxyethyl acrylate, 2- (p- cumenyl-phenoxy group)-hexyl olefin(e) acid ester,
2- hydroxyl -3- phenyl benzene ethoxycarbonyl propyl acrylate, phenoxy benzyl acrylic ester, benzyl acrylate, benzyl methyl third
One or more in olefin(e) acid ester；Double official acrylate monomers of the refractive index higher than 1.53 include ethoxylated bisphenol A dipropyls
One or more in olefin(e) acid ester, ethoxy diphenyl base fluorenes diacrylate, ethoxylated bisphenol S diacrylates.
3. a kind of UV light-cured types elasticity selfreparing blast coating composition as claimed in claim 1, it is characterised in that described
Light trigger is selected from 1- hydroxycyclohexyl phenyl ketones, 2- hydroxy-2-methyl -1- phenyl -1- acetone, 2,4,6- trimethylbenzene first
One kind or several in acyl group-diphenyl phosphine oxide, phenyl double (2,4,6- trimethylbenzoyls) phosphine oxide, styrax methyl phenyl ethers anisoles
Kind.
4. a kind of UV light-cured types elasticity selfreparing blast coating composition as claimed in claim 1, it is characterised in that described
One or more of auxiliary agent in levelling agent, defoamer, polymerization inhibitor.
5. a kind of UV light-cured types elasticity selfreparing blast coating composition as claimed in claim 1, it is characterised in that described
Polypropylene glycol, hexamethylene diisocyanate, dihydromethyl propionic acid, terminal hydroxy group acrylate, glycidyl methacrylate
Mole dosage ratio be (0.81~0.99)：2：(0.19~0.01)：2：(0.19~0.01).
6. a kind of elastic selfreparing blast coating composition of UV light-cured types as described in claim 1 or 5, it is characterised in that
The molecular weight of the polypropylene glycol is 100~2000.
7. a kind of UV light-cured types elasticity selfreparing blast coating composition as claimed in claim 6, it is characterised in that described
Terminal hydroxy group acrylate is 2-(Acryloyloxy)ethanol, hydroxyethyl methylacrylate, hy-droxybutyl and methacrylate
In one or two.
8. a kind of UV light-cured types elasticity selfreparing blast coating composition as claimed in claim 4, it is characterised in that described
Levelling agent is selected from dimethyl polysiloxane copolymer, polysiloxane-polyether copolymer, Siloxane-Oxyalkylene Copolymers；The froth breaking
Agent is selected from polysiloxanes macromolecule, mineral oil antifoam agent or polyether-modified dimethyl polysiloxane copolymer；The polymerization inhibitor choosing
From MEHQ, hydroquinone or 2,6- toluene di-tert-butyl phenol.
9. a kind of UV light-cured types elasticity selfreparing blast coating composition as claimed in claim 1, it is characterised in that described
Photo polymerization monomer is the compositionss of single official's esters of acrylic acid photo polymerization monomer and double official's esters of acrylic acid photo polymerization monomers, wherein,
The weight ratio of double official's acrylate monomers and monofunctional acrylate is (1~2.5):1.
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| CN107043593A (en) * | 2016-12-30 | 2017-08-15 | 佛山佛塑科技集团股份有限公司 | A kind of plastic sheeting and its coating of oil-stain-preventing selfreparing |
| CN108690166B (en) * | 2017-04-05 | 2020-09-29 | 宁波激智科技股份有限公司 | High-refractive-index flexible diffusion particle, preparation method thereof and optical film |
| WO2018205208A1 (en) * | 2017-05-11 | 2018-11-15 | 江南大学 | Calixarene-type photocurable polyurethane resin and self-repairing coating prepared therefrom |
| CN108586782B (en) * | 2017-12-14 | 2021-01-15 | 昆山乐凯锦富光电科技有限公司 | Optical hardening film |
| US11084947B2 (en) | 2017-12-18 | 2021-08-10 | GM Global Technology Operations LLC | Self-healing, UV-absorbing polymer coating |
| CN111040119B (en) * | 2018-10-12 | 2021-12-24 | 三门大洋橡塑有限公司 | Self-repairing type organic silicon modified polyurethane and preparation method thereof |
| CN109554107A (en) * | 2018-11-27 | 2019-04-02 | 深圳市高域化学材料有限公司 | A kind of UV light-cured type elasticity self-healing coatings |
| CN109609021A (en) * | 2018-12-07 | 2019-04-12 | 中昊北方涂料工业研究设计院有限公司 | A kind of cured high refractive index polyurethane resin coating of ultraviolet light and preparation method thereof |
| CN114276746B (en) * | 2021-12-28 | 2023-09-26 | 广州四面体新材料科技有限公司 | Solvent-free coating composition for electron beam curing film forming and with shape memory function and preparation method thereof |
| CN116410657A (en) * | 2021-12-31 | 2023-07-11 | 宁波激智创新材料研究院有限公司 | Elastic polyurethane layer and reworkable foam adhesive tape |
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| CN104592884B (en) * | 2015-01-19 | 2017-06-16 | 上海乘鹰新材料有限公司 | Ultraviolet light polymerization elasticity self-healing coatings composition |
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