CN104877544A - 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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- 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
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- 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
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- 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
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- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
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- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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- 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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- 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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- 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
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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, be specifically related to a kind of UV light-cured type elasticity selfreparing blast coating composition.
Background technology
, there is very important effect in the important accessory that backlight module shows as LCD and brightness source to the brightness of liquid-crystal display.People attempt various ways and go from backlight module aspect to improve LCD display brightness.Between light guiding plate and lower floor's polaroid, add brightness enhancement film is one of method wherein.
By mould pressing process, prismatic structure special on mould is transferred on base material and obtains brightness enhancement film.Wherein, the quality of brightness enhancement film coating property can determine the quality of brightness enhancement film performance, is the key making brightness enhancement film.In line flow procedure; especially in cutting process, the wedge angle of brightness enhancement film understands the coating of surface scratch unavoidably; cause the prism structure in coating damage to some extent and become substandard products, affect production efficiency and yield rate, traditional technique pastes layer protecting film in coating.This cumbersome and can not essence stop the impaired generation of coating.
By finding the retrieval of existing document, Japanese Patent JP2009-144065 provides a kind of aqueous elastic UV light solidifying paint composition, and it comprises a kind of urethane acrylate water dispersion, many officials polyurethane acrylate resin and organic filler.But the performed polymer synthesis phase of urethane acrylate water dispersion synthesis, need completely anhydrous, therefore higher to process control needs, conversion unit and raw material all will carry out water removal operation, cause technology controlling and process complicated, the shortcoming that the production time is long.In addition, this coating is only applicable to common occasion, and is not mentionedly applicable to brightness enhancement film coating.
Chinese patent CN102585575 discloses the UV elastic coating that a kind of solvent-borne type is main body by elastic resin and inorganic silicon dioxide elastic particle.Owing to using inorganic particulate, there is stably dispersing sex chromosome mosaicism in system.In addition, the performance of this coating composition, except paper tape wear resisting property, does not embody elasticity self-healing properties and resistance to sharp thing scuffing performance.And said composition contains organic solvent, there is environmental protection, production security, complex process, shortcoming that cost is high.In addition, this coating is only applicable to common occasion equally, and is not mentionedly applicable to brightness enhancement film coating.
Summary of the invention
The object of the invention is to the deficiency overcoming the existence of above-mentioned prior art, a kind of solvent-free UV light-cured type elasticity selfreparing blast coating composition is provided, after UV photocuring, coating has excellent elasticity, has fabulous sticking power simultaneously, wear-resisting and resistance to sharp thing scratches performance.
In the brightness enhancement film preparation of backlight module; compare the method for traditional pasting protective film in coating; there is while the prism structure that composition of the present invention is formed after ultraviolet light polymerization has self-repair function excellent wear-resisting scratch resistance performance and extremely excellent base material sticking power; can resilience and repair cut at short notice, anti-scratching wearproof improves yield rate.The present invention is achieved by the following technical solutions:
The invention provides a kind of UV light-cured type elasticity selfreparing blast coating composition, it comprises each component of following parts by weight:
Wherein, described elastic optical cured resin is polypropylene glycol and hexamethylene diisocyanate, dimethylol propionic acid, the side chain of terminal hydroxy group acrylate and glycidyl methacrylate Reactive Synthesis is with three official's elastic polyurethane acrylate of hydroxyl, and described side chain is as follows with the structural formula of three official's elastic polyurethane acrylate of hydroxyl:
1.4≤n≤16.9；
As can be seen from structural formula, this resin has the constitutional features that soft or hard section has concurrently.Soft section derives from polypropylene glycol, and hard section derives from the carbamate segment composition that hexamethylene diisocyanate and bishydroxymethyl propionic acid and terminal hydroxy group acrylate are formed, and wherein carbamate structures can form hydrogen bond.Exactly because this structure, gained resin is made to have excellent resilience and wear-resisting scratch resistance performance.In addition, side chain contains hydroxyl, makes this resin have the sticking power splendid to PET base material.
Described photo polymerization monomer be specific refractory power higher than 1.53 single official's esters of acrylic acid photo polymerization monomer and/or two official's esters of acrylic acid photo polymerization monomer, preferably, described photo polymerization monomer be selected from specific refractory power higher than 1.53 monofunctional acrylate, or the mixture of two official's acrylate monomer and monofunctional acrylate.In the present invention, described monofunctional acrylate mainly plays the effect of reactive thinner, both can reduce viscosity so that coating, can also improve the sticking power of film to base material.The basic properties such as the described pair of official's acrylate monomer mainly provide coating to adhere to, wear-resisting, hardness.
Preferably, described refractive index higher than 1.53 monofunctional acrylate comprise in 2-phenoxyethyl acrylate, thiophenyl acrylate, ethoxyquin phenoxy group acrylate, adjacent phenyl benzene ethoxyethyl acrylate, 2-(p-cumyl-phenoxy group)-hexyl olefin(e) acid ester, 2-hydroxyl-3-phenyl benzene ethoxycarbonyl propyl acrylate, phenoxy benzyl acrylic acid ester, benzyl acrylate, benzyl methacrylate one or more; Described specific refractory power higher than 1.53 two official's acrylate monomers comprise in ethoxylated bisphenol A diacrylate, ethoxy diphenyl base fluorenes diacrylate, ethoxylated bisphenol S diacrylate one or more.
Preferably, described light trigger is selected from 1-hydroxycyclohexyl phenyl ketone, 2-hydroxy-2-methyl-1-phenyl-1-acetone, 2,4,6-trimethylbenzoy-dipheny phosphine oxide, phenyl two (2,4,6-trimethylbenzoyl) phosphine oxide, one or more in st-yrax methyl-phenoxide;
Preferably, described auxiliary agent is selected from one or more in flow agent, defoamer, stopper.
Preferably, described side chain comprises the steps: with the preparation method of three official's elastic polyurethane acrylate of hydroxyl
By polypropylene glycol, hexamethylene diisocyanate and dimethylol propionic acid react at 75 ~ 80 DEG C, obtain the urethane resin of the carboxylic terminal isocyanate group of side chain;
Be cooled to 50 ~ 55 DEG C, add terminal hydroxy group acrylate, after reaction, obtain side chain carboxylic pair of official's urethane acrylate;
Add glycidyl methacrylate, be warming up to 90 ~ 95 DEG C, carry out opening, the side chain obtaining 100% solid content contains three official's elastic polyurethane acrylate of hydroxyl.
Preferably, the ratio of the mole dosage of described polypropylene glycol, hexamethylene diisocyanate, dimethylol propionic acid, terminal hydroxy group acrylate, glycidyl methacrylate is (0.81-0.99): 2:(0.19-0.01): 2:(0.19-0.01), be preferably 0.9:2:0.1:2:0.1.
Preferably, the molecular weight of described polypropylene glycol (PPG) is 100 ~ 2000, be preferably 200 ~ 1000, as any one in PPG200, PPG400, PPG600, PPG800, PPG1000 and PPG2000 etc., more preferably molecular weight 300 ~ 800, as PPG400, PPG600, any one in PPG800 etc., most preferably is PPG600.
Preferably, described terminal hydroxy group acrylate is one or both in Hydroxyethyl acrylate, hydroxyethyl methylacrylate, hy-droxybutyl and methacrylate, is preferably Hydroxyethyl acrylate and hy-droxybutyl; Most preferably be Hydroxyethyl acrylate.
Preferably, described flow agent is selected from dimethyl polysiloxane multipolymer, polysiloxane ~ copolyether, Siloxane-Oxyalkylene Copolymers; Described defoamer is selected from polysiloxane polymer, mineral oil antifoam agent or polyether-modified dimethyl polysiloxane multipolymer; Described stopper is selected from MEHQ, Resorcinol or 2,6-toluene di-tert-butyl phenol.
Preferably, described photo polymerization monomer is the composition of single official's esters of acrylic acid photo polymerization monomer and two official's esters of acrylic acid photo polymerization monomer, and wherein, the weight ratio of two official's acrylate monomer and monofunctional acrylate is (1 ~ 2.5): 1.
Coating composition of the present invention, can form the cross-linked network with soft section and hard section region after ultraviolet light polymerization.Elastic part is wherein by the polypropylene glycol soft section of partial contribution in three official's elastic polyurethane acrylate resins, hard section region derives from by hard section the carbamate segment part that hexamethylene diisocyanate and bishydroxymethyl propionic acid and terminal hydroxy group acrylate formed, the specific refractory power with rigid backbone higher than 1.53 two official's acrylate monomers, and they and three official's elastic polyurethane acrylate resins and specific refractory power provide higher than the cross-linked network structure formed after single official's acrylate monomer UV photopolymerization of 1.53, ensure that coating has good elasticity self-healing properties simultaneously, also there is scratch resistance, wear resisting property.
Compared with prior art, the present invention has following beneficial effect:
1, the UV curing elasticity selfreparing blast coating composition production technique utilizing the present invention to prepare is simple, especially side chain is simple with the preparation condition of three official's elastic polyurethane acrylate of hydroxyl, do not adopt solvent, the lower product of viscosity at ambient temperature just can be obtained under bulk conditions, and can directly as preparation of raw material coating composition, and eliminate the process desolventized, save raw materials cost and power cost.In addition, from environmental angle, also can not in air, discharge organic volatile and affect environment.
2, UV curing elasticity selfreparing blast coating composition of the present invention is not containing any organic solvent, and energy-conserving and environment-protective, can reduce process costs.
3. the specific refractory power that the present composition is adjustable is the selfreparing blast coating of 1.53 ~ 1.58.
4, the present composition allotment blast coating photocuring after the coating resilience time within 3 seconds, there is the scuffing that good elasticity selfreparing effect can resist sharp thing well.
5, coating composition of the present invention also has the performances such as good film-forming property, the demoulding are good, good attachment, can preserve prism structure well, is gathered preferably by light source thus improve light source utilization rate.
6, the good weatherability of coating composition of the present invention, through hot and humid testing coating surface without difference, not having difference before and after attachment fastness test, is all 5B.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the hydrogen nuclear magnetic resonance spectrogram of side chain with three official's elastic polyurethane acrylate of hydroxyl of embodiment 1 preparation in the present invention.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
The formula of embodiment 4 ~ 8 and comparative example is as shown in table 1, and side chain described in table prepares by the following method with three official's elastic polyurethane acrylate of hydroxyl:
synthesis example 1the present embodiment relates to the synthesis of a kind of side chain with three official's elastic polyurethane acrylate A of hydroxyl
To being furnished with drying nitrogen, mechanical stirring, condenser, in 100 milliliters of four-hole bottles of thermometer and oil bath heating, add the PPG600 after 100 DEG C of vaccum dewaterings (30 grams, 0.05 mole), then add hexamethylene diisocyanate (HDI, 18.7 grams, 0.11 mole) and dimethylol propionic acid (DMPA, 0.75 gram, 0.0056 mole), be warming up to 75 ~ 80 DEG C, react 3 hours.Then be cooled to 50 ~ 55 DEG C, add MEHQ (0.19 gram) and Hydroxyethyl acrylate (HEA, 12.90 grams, 0.11 mole), react 2 hours, TLC analyzes and shows that Hydroxyethyl acrylate reaction is complete.And then add glycidyl methacrylate (GMA, 1.58 gram, 0.011 mole) and catalyzer benzyl triethyl ammonium bromide (0.064 gram), be warming up to 90 ~ 95 DEG C, react 2 ~ 3 hours, TLC analyzes and terminates after completion of the reaction to react to glycidyl methacrylate.Obtain the three official elastic polyurethane acrylate As of side chain with hydroxyl of 100% solid content.Room temperature is light yellow viscous liquid.Viscosity during room temperature is 3000cps, and specific refractory power is 1.491.Its structural formula is as follows:
Here n=10, n are determined by the molecular weight of polypropylene glycol.
Its proton nmr spectra as shown in Figure 1.These two comparative examples be in order to illustrate contrast synthesis example 1 adopt hy-droxybutyl (HBA), resilience can improve, but scratch resistance is poor, its structure and synthesis example 1 similar, so refractive index ratio is more close; Contrast synthesis example 2 adopts PPG400 to replace PPG600 synthesis to illustrate, scratch resistance is good, but resilience is poor.
contrast synthesis example 1:
To being furnished with drying nitrogen, mechanical stirring, condenser, in 100 milliliters of four-hole bottles of thermometer and oil bath heating, add the PPG600 after 100 DEG C of vaccum dewaterings (18 grams, 0.03 mole), then add hexamethylene diisocyanate (HDI, 11.21 grams, 0.067 mole) and dimethylol propionic acid (DMPA, 0.45 gram, 0.0033 mole), be warming up to 80 DEG C, react 3 hours.Then be cooled to 50 ~ 55 DEG C, add MEHQ (0.12 gram) and hy-droxybutyl (HBA, 9.61 grams, 0.067 mole), react 2 hours, TLC analyzes and shows that hy-droxybutyl (HBA) reacts complete.And then add glycidyl methacrylate (GMA, 9.45 gram, 0.0067 mole) and catalyzer benzyl triethyl ammonium bromide (0.041 gram), be warming up to 90 DEG C, react 2 ~ 3 hours, TLC analyzes and terminates after completion of the reaction to react to glycidyl methacrylate (GMA).Obtain the three official elastic polyurethane acrylate Cs of 100% side chain admittedly contained with hydroxyl.Room temperature is light yellow viscous liquid.Viscosity during room temperature is 2850cps.
contrast synthesis example 2
To being furnished with drying nitrogen, mechanical stirring, condenser, in 100 milliliters of four-hole bottles of thermometer and oil bath heating, add the PPG400 after 100 DEG C of vaccum dewaterings (24 grams, 0.06 mole), then add hexamethylene diisocyanate (HDI, 22.43 grams, 0.13 mole) and dimethylol propionic acid (DMPA, 0.89 gram, 0.0067 mole), be warming up to 80 DEG C, react 3 hours.Then be cooled to 50 ~ 55 DEG C, add MEHQ (0.19 gram) and Hydroxyethyl acrylate (HEA, 15.48 grams, 0.13 mole), react 2 hours, TLC analyzes and shows that Hydroxyethyl acrylate (HEA) reacts complete.And then add glycidyl methacrylate (GMA, 1.58 gram, 0.011 mole) and catalyzer benzyl triethyl ammonium bromide (0.064 gram), be warming up to 90 DEG C, react 2 ~ 3 hours, TLC analyzes and terminates after completion of the reaction to react to glycidyl methacrylate (GMA).Obtain the three official elastic polyurethane acrylate Bs of 100% side chain admittedly contained with 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.In fact its structure and synthesis example 1 similar, so refractive index ratio is more close.Contrast synthesis example 2 adopts PPG400 to replace PPG600 synthesis, and scratch resistance is good, but resilience is poor.
embodiment 1 ~ 5
Embodiment 1 ~ 5 each provides a kind of ultraviolet light polymerization elasticity self-healing coatings composition, and the feed composition that each composition is corresponding, parts by weight and corresponding performance test are as shown in table 1;
Mixed by its parts by weight by feed composition corresponding for each embodiment respectively, middling speed disperses 2 hours, filters, obtains corresponding elasticity selfreparing UV light solidifying paint composition.
The material enumerated in table 1 is the representative in aforementioned multiple technologies scheme, is not limited to listed material in table during actual enforcement.Described monofunctional acrylate also can select one or more in thiophenyl acrylate, ethoxyquin phenoxy group acrylate, adjacent phenyl benzene ethoxyethyl acrylate, 2-(p-cumyl-phenoxy group)-hexyl olefin(e) acid ester, 2-hydroxyl-3-phenyl benzene ethoxycarbonyl propyl acrylate, benzyl acrylate, benzyl methacrylate.Described pair of official's acrylate monomer also can select ethoxylated bisphenol S diacrylate.Described light trigger can be selected from 1-hydroxycyclohexyl phenyl ketone, 2-hydroxyl ~-2-methyl isophthalic acid-phenyl-1-acetone, 2; 4; 6-trimethylbenzoy-dipheny phosphine oxide, phenyl two (2; 4,6 ~ trimethylbenzoyl) phosphine oxide, one or more in st-yrax methyl-phenoxide.Described flow agent is selected from dimethyl polysiloxane multipolymer, polysiloxane-polyether copolymer, Siloxane-Oxyalkylene Copolymers.Described defoamer is selected from polysiloxane polymer, mineral oil antifoam agent, polyether-modified dimethyl polysiloxane multipolymer etc.Described stopper is selected from MEHQ, Resorcinol, 2,6-toluene di-tert-butyl phenols.
In table 1, the method for specific performance test item and correspondence is as follows:
One, specific refractory power
The high refractive index brightness enhancement coating composition prepared is dripped 2 ~ 3 to drop in Abbe refractometer instrument and enter on the frosting of light prism, read refractive index data and corresponding temperature.
Testing method: utilize Abbe refractometer instrument to measure the specific refractory power of coating composition
Appraisal procedure: read refractive index data and corresponding temperature.
Two, the resilience time
The spur of the thick PET base material of 250um is adopted to test the specimen page resilience time.
Testing method: the time required for visual observation cut disappears.
Appraisal procedure: manual time-keeping.
Three, planeness
Ready-made brightness enhancement film specimen page is cut into A4 paper size be entirely layered in horizontal table top, observes whether specimen page is smooth does not have warpage.
Testing method: whether visual observation test specimen page is smooth.
Appraisal procedure: specimen page is entirely attached in horizontal table top, edge is not more than the warpage of 0.5mm.
Four, sticking power
Adopt Pressure sensitive adhesive tape, hundred lattice methods are tested specimen page sticking power.
Appraisal procedure: do not come off for excellent completely, has and comes off for good on a small quantity, come off in a large number for difference.
Five, briliancy
Cut A4 paper size specimen page, smooth placement, adopt Optin series of X Y TABLE brightness photometer to measure.
Appraisal procedure: by the automatic calculating mean value of surveying instrument, uniformity coefficient, judges OK/NG automatically, generates EXCEL form automatically.
Six, specimen page outward appearance
Observe specimen page coating and whether have rainbow line and the macroscopic irregularity such as cut, broken string.
Testing method: visual observation test specimen page outward appearance.
Appraisal procedure: specimen page picture on surface is complete full without rainbow.
Seven, wear-resisting experiment
Testing method is got A4 paper size specimen page and is fixed on abrasion performance trier, is close to polaroid at specimen page coated surface, and specimen page bears a heavy burden 500g counterweight, then opens abrasion performance trier, comes and goes 5 times.
Appraisal procedure: the prism coating structure on blast sheet is not damaged, for wear-resisting excellent.
Eight, water boiling resistance experiment
Testing method: specimen page is put into after boiling water boils 30min and take out hundred lattice method testing coating attachments.
Appraisal procedure: do not come off for excellent completely, has and comes off for good on a small quantity, come off in a large number for difference.
As shown in Table 1, comparative example 1 is compared with embodiment 5, although resilience promotes, wear-resisting scratch resistance is deteriorated, and the resin adopting hy-droxybutyl to replace Hydroxyethyl acrylate synthesis is described, scratch resistance is poor.Comparative example 2 is compared with embodiment 5, and sticking power, ageing-resistant performance and briliancy are all fine, maintain an equal level with it, but the resilience time are long, and namely self-reparing capability is deteriorated.Illustrate and adopt PPG400 to replace PPG600 rebound resilience to be deteriorated.Comparative example 3 is compared with embodiment 5, illustrate in composition system of the present invention, adopt three official's urethane acrylates from the side chain that has concurrently of Soft hard segment structure of synthesis is hydroxyl to compare three commercially available official's elastic polyurethane acrylate, effectively can improve the performances such as rebound resilience, wear-resisting scratch resistance, sticking power and briliancy.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (10)
1. a UV light-cured type elasticity selfreparing blast coating composition, is characterized in that, comprises each component of following parts by weight:
Wherein, described elastic optical cured resin is polypropylene glycol and hexamethylene diisocyanate, dimethylol propionic acid, the side chain of terminal hydroxy group acrylate and glycidyl methacrylate Reactive Synthesis is with three official's elastic polyurethane acrylate of hydroxyl, and described side chain is as follows with the structural formula of three official's elastic polyurethane acrylate of hydroxyl:
1.4≤n≤16.9；
Described photo polymerization monomer be specific refractory power higher than 1.53 single official's esters of acrylic acid photo polymerization monomer and/or two official's esters of acrylic acid photo polymerization monomer.
2. a kind of UV light-cured type elasticity selfreparing blast coating composition as claimed in claim 1, it is characterized in that, described refractive index higher than 1.53 monofunctional acrylate comprise in 2-phenoxyethyl acrylate, thiophenyl acrylate, ethoxyquin phenoxy group acrylate, adjacent phenyl benzene ethoxyethyl acrylate, 2-(p-cumyl-phenoxy group)-hexyl olefin(e) acid ester, 2-hydroxyl-3-phenyl benzene ethoxycarbonyl propyl acrylate, phenoxy benzyl acrylic acid ester, benzyl acrylate, benzyl methacrylate one or more; Described specific refractory power higher than 1.53 two official's acrylate monomers comprise in ethoxylated bisphenol A diacrylate, ethoxy diphenyl base fluorenes diacrylate, ethoxylated bisphenol S diacrylate one or more.
3. a kind of UV light-cured type elasticity selfreparing blast coating composition as claimed in claim 1; it is characterized in that; described light trigger is selected from 1-hydroxycyclohexyl phenyl ketone, 2-hydroxy-2-methyl-1-phenyl-1-acetone, 2; 4; 6-trimethylbenzoy-dipheny phosphine oxide, phenyl two (2; 4,6-trimethylbenzoyl) phosphine oxide, one or more in st-yrax methyl-phenoxide.
4. a kind of UV light-cured type elasticity selfreparing blast coating composition as claimed in claim 1, it is characterized in that, described auxiliary agent is selected from one or more in flow agent, defoamer, stopper.
5. a kind of UV light-cured type elasticity selfreparing blast coating composition as claimed in claim 1, it is characterized in that, described side chain comprises the steps: with the preparation method of three official's elastic polyurethane acrylate of hydroxyl
By polypropylene glycol, hexamethylene diisocyanate and dimethylol propionic acid react at 75 ~ 80 DEG C, obtain the urethane resin of the carboxylic terminal isocyanate group of side chain;
Be cooled to 50 ~ 55 DEG C, add terminal hydroxy group acrylate, after reaction, obtain side chain carboxylic pair of official's urethane acrylate;
Add glycidyl methacrylate, be warming up to 90 ~ 95 DEG C, carry out opening, the side chain obtaining 100% solid content contains three official's elastic polyurethane acrylate of hydroxyl.
6. a kind of UV light-cured type elasticity selfreparing blast coating composition as claimed in claim 5, it is characterized in that, the ratio of the mole dosage of described polypropylene glycol, hexamethylene diisocyanate, dimethylol propionic acid, terminal hydroxy group acrylate, glycidyl methacrylate is (0.81 ~ 0.99): 2:(0.19 ~ 0.01): 2:(0.19 ~ 0.01).
7. a kind of UV light-cured type elasticity selfreparing blast coating composition as described in claim 5 or 6, it is characterized in that, the molecular weight of described polypropylene glycol is 100 ~ 2000.
8. a kind of UV light-cured type elasticity selfreparing blast coating composition as described in claim 5 or 6, it is characterized in that, described terminal hydroxy group acrylate is one or both in Hydroxyethyl acrylate, hydroxyethyl methylacrylate, hy-droxybutyl and methacrylate.
9. a kind of UV light-cured type elasticity selfreparing blast coating composition as claimed in claim 1, it is characterized in that, described flow agent is selected from dimethyl polysiloxane multipolymer, polysiloxane-polyether copolymer, Siloxane-Oxyalkylene Copolymers; Described defoamer is selected from polysiloxane polymer, mineral oil antifoam agent or polyether-modified dimethyl polysiloxane multipolymer; Described stopper is selected from MEHQ, Resorcinol or 2,6-toluene di-tert-butyl phenol.
10. a kind of UV light-cured type elasticity selfreparing blast coating composition as claimed in claim 1, it is characterized in that, described photo polymerization monomer is the composition of single official's esters of acrylic acid photo polymerization monomer and two official's esters of acrylic acid photo polymerization monomer, wherein, the weight ratio of two official's acrylate monomer and monofunctional acrylate is (1 ~ 2.5): 1.
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| CN108586782A (en) * | 2017-12-14 | 2018-09-28 | 合肥乐凯科技产业有限公司 | A kind of optical hardening film |
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| 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 |
| CN114276746A (en) * | 2021-12-28 | 2022-04-05 | 广州四面体新材料科技有限公司 | Solvent-free coating composition with shape memory function for electron beam curing film forming 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 |
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