CN104726052B - UV/base coat dual-curing liquid optical cement and preparation method thereof - Google Patents
UV/base coat dual-curing liquid optical cement and preparation method thereof Download PDFInfo
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- CN104726052B CN104726052B CN201510059626.4A CN201510059626A CN104726052B CN 104726052 B CN104726052 B CN 104726052B CN 201510059626 A CN201510059626 A CN 201510059626A CN 104726052 B CN104726052 B CN 104726052B
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Abstract
The invention discloses UV/base coat dual-curing liquid optical cement and a preparation method thereof. The UV/base coat dual-curing liquid optical cement is prepared from the following components in parts by weight: 30-60 parts of polyurethane-modified polyacrylate, 10-30 parts of an active diluting monomer, 5-30 parts of a plasticizer, 1-3 parts of a UV photoinitiator, 0.5-2 parts of peroxide, 0.3-5 parts of a chain transfer agent and 0.5-2 parts of an antioxidant, the curing problem of the liquid optical cement at a gap shade part is solved, the Mura phenomenon of an LCD (Liquid Crystal Display) is reduced due to lower volume shrinkage and elasticity modulus of the cement, and the repair efficiency is improved.
Description
Technical field
The present invention relates to optical cement, a kind of UV/ primary coats dual cure liquid optical cement and preparation method thereof, are applied to
The bonding of optical display subass embly.
Background technology
Now with the development of informationized society, digitized smart machine is further popularized and applied.Intelligent hand
Machine, panel computer, wearable smart machine is seen everywhere in person to person's exchange.And these smart machines also towards it is lightening+
Power saving+intelligentized target development, so as to greatly increase equipment packaging technology difficulty, while also proposing to adhesives
Higher performance requirement.
In an assembling process general adopted adhesives is OCA to optical touch early stage, but as touch control device is produced
The raising of expansion and the requirement of industry, the discomfort of OCA shows up：1. light transmittance is not high enough, and material and glass itself
Refractive index mismatch, easily produce refraction, the space of device structure, easy influent gas and ash are not 2. filled up completely with well
Dirt, 3. reprocesses poor performance, substantially cannot carry out it is large batch of reprocess, be 4. difficult to automate pipeline system it is extensive
Production.
The application of liquid optical cement effectively solves the above problems, and 1. liquid optical cement presents liquid, it is not necessary to carry out
Size cuts mould, and viscosity typically in below 5000CPS, with good mobility, good leveling property, and can well fill small
Gap；2. light transmittance is up to more than 98%, and index of refraction is between 1.47-1.53, is sufficiently close to the index of refraction of glass；3. exist
Can carry out low-energy just solid in touch screen production process, be fully cured again after whether detection performance is qualified, improve
The qualification rate of touch control device；4. liquid optical cement can coordinate the automation abutted equipment of specialty, greatly improve production efficiency.It is existing
Producer both domestic and external has also used in a large number liquid optical cement, therefore the domestic and international demand to liquid optical cement in production also in day
Benefit increases, but while various touch screens structural manufacturing process to the performance of liquid optical cement it is also proposed that higher requirement.
In the market the most wide liquid optical cement of use range mostly is single UV solidification glues of G+G (glass+glass) structure,
But touch-control enterprise substantially confirms the structure of G+LCM (glass+LCD MODULE) this type while doing lightening, knot
Structure scheme can be divided into OGS (integrated capacitor formula touch-screen), IN-CELL (touch panel function is embedded in liquid crystal pixel), ON-
CELL (is embedded into touch panel function between colored filter substrate and Polarizer).The liquid optical cement of existing G+G classes
, there is problems with bonding optical display subass embly：1.UV light irradiations less than gap shade part occur solidification it is bad, not even
The situation of solidification, the material such as such as PET, PMMA inadequate to the adhesive force of portion of material；2. the product halo of many colours produced
(Mura) phenomenon is extremely serious；3. when fitting bad, glue material toughness is not enough, easily disconnected, causes repair rate high, waste of manpower thing
Power.Now external company proposes the various ways of UV/ moistures/heating to be solidified, although it is a certain degree of solve with
On some problems, but efficient production and popularization on a large scale cannot be carried out.Therefore, solving above-mentioned these problems becomes optics
The technological difficulties that the urgent need of glue industry is captured.
The content of the invention
To overcome the defect of prior art, it is an object of the invention to provide a kind of UV/ primary coats dual cure liquid optics
Glue, resin improves the elongation of optical cement based on polyurethane-modified polyacrylate prepolymer, solves liquid optical cement in gap
The problem of solidification of dash area, the ultralow cubical contraction of glue material and elastic modelling quantity reduce the Mura phenomenons of LCD, and raising is reprocessed
Efficiency.
Another object of the present invention is to a kind of preparation method of UV/ primary coats dual cure liquid optical cement is provided, to obtain
Obtain a kind of liquid optical cement with overlength elongation.
For achieving the above object the technical solution adopted in the present invention is as follows：
A kind of UV/ primary coats dual cure liquid optical cement, it includes the liquid that following raw material in parts by weight is prepared from
State optical cement：
Preferably, the UV/ primary coats dual cure liquid optical cement is prepared from by following raw material in parts by weight：
Specifically, the polyurethane-modified polyacrylate prepolymer is by polyether Glycols, diisocyanate and metering system
Acid -2- hydroxy methacrylates are prepared, and the amount ratio of three's material is：40: (2～5): (0.8～1.2).The polyether Glycols point
Son amount be 2000～18000, the diisocyanate be IPDI, methyl diphenylene diisocyanate, six
One or two kinds of in methylene diisocyanate is mixed above.
Specifically, the activity diluting monomer be hydroxy-ethyl acrylate, hydroxypropyl acrylate, isobornyl acrylate, third
Olefin(e) acid lauryl, acryloyl morpholine, tetrahydrofuran acrylate, octadecyl acrylate, ethoxyethoxyethyl acrylate,
In hydroxy propyl methacrylate, hydroxyethyl methacrylate, GMA, polyethyleneglycol diacrylate
One or more mixing；The plasticizer be hydrogenation rosin resin, hydrogenation terpene resin, polybutadiene oligomer,
One or more mixture in polyether Glycols, ether alcohol binary acid diester, the ether ethylene glycol unitary acid diester of HMW；Institute
UV light triggers are stated for 2,4,6,-trimethylbenzoy-dipheny phosphorous oxide, 2- hydroxy-2-methyl -1- phenyl -1- acetone,
One or more in double (2,4, the 6- trimethylbenzoyl) phosphine oxides of 1- hydroxycyclohexyl phenyl ketones, phenyl are mixed
Close；The peroxide is cumyl hydroperoxide, cumyl peroxide, peroxidized t-butyl perbenzoate, peroxidating 3.3.5
Trimethyl one or more mixing in tert-butyl acrylate；The chain-transferring agent is n-dodecyl mercaptan, pentaerythrite
One or two kinds of in four (3- mercaptopropionic acids) esters, trimethylolpropane-three (3- mercaptopropionic acids) ester is mixed above.
Further, described UV/ primary coat dual cure liquid optical cements, also including following raw material system in parts by weight
Standby silane coupling agent：
5～50 parts of metal complex
2～20 parts of aminated compounds
50～90 parts of organic solvent.
Further, described UV/ primary coat dual cures liquid optical cement also includes following raw material system in parts by weight
Standby silane coupling agent：
32～45 parts of metal complex
8～12 parts of aminated compounds
54～67 parts of organic solvent.
Specifically, in the raw material of above-mentioned silane coupling agent, a kind of metal in the metal complex copper, titanium, iron, vanadium, tin with
The complex compound of acetylacetone,2,4-pentanedione；The aminated compounds be fatty amine, the one or both mixture of aromatic amine；The organic solvent
For acetone or ethanol.
A kind of preparation method of UV/ primary coats dual cure liquid optical cement, comprises the following steps：
1) polyurethane-modified polyacrylate prepolymer, activity diluting monomer is added to keep true in planet homogenizer
Sky, with the rotating speed high-speed stirred of 250-350 turn/min to being well mixed, control temperature is less than 35 DEG C；
2) then sequentially add plasticizer, chain-transferring agent, antioxidant continue vacuum and turned with 250-350/rotating speed of min is high
Speed stirs；
3) UV light triggers and peroxide are eventually adding, the temperature of recycling water formulation bath is 40-45 DEG C, makes temperature of charge
20-40 minutes are stirred with the rotating speed high-speed vacuum of 250-350 turn/min when being maintained at 40 DEG C,
4) and then 10 microns are crossed not after adjusting the rotating speed vacuum defoamation 20-40 minutes that planet machine rotating speed is 20-40 turn/min
The filter screen packing of rust steel.
Further, above-mentioned preparation method also includes the step of preparing polyurethane-modified polyacrylate prepolymer：In nitrogen
By polyether Glycols in 120 DEG C of vacuum dehydrations under atmosphere, catalyst and diisocyanate are subsequently adding in 75-90 DEG C or so reaction
3-5, is then cooled to≤40 DEG C, adds methacrylic acid -2- hydroxy methacrylates, is warmed up to 70-80 degree reaction 1-3 hours, sampling
The peak for testing its NCO with infrared spectrometer is wholly absent, i.e., room temperature discharging packaging is cooled to after reacting completely；Wherein, polyethers two
The amount ratio of the material of first alcohol, diisocyanate and methacrylic acid -2- hydroxy methacrylates is：40: (2～5): (0.8～1.2).
Compared to existing technology, the beneficial effects of the present invention is：
1. UV/ primary coats dual cure liquid optical cement of the present invention solves liquid optical cement in gap shade part
Problem of solidification；
2. UV/ primary coats dual cure liquid optical cement of the present invention has ultralow cubical contraction and springform
Amount, reduces the Mura phenomenons of LCD；
3. there is the elongation at break of superelevation after UV/ primary coats dual cure liquid optical cement solidification of the present invention, it is excellent
Different toughness can be with the removing of full wafer or whole piece, so that the efficiency reprocessed is greatly improved；
4. preparation method step of the present invention is simply easy to operate and control, and is adapted to industrialized production.
The present invention is described in further detail with reference to specific embodiment.
Specific embodiment
A kind of UV/ primary coats dual cure liquid optical cement, it includes the liquid that following raw material in parts by weight is prepared from
State optical cement：
Preferably, the UV/ primary coats dual cure liquid optical cement is prepared from by following raw material in parts by weight：
As preferred, polyurethane-modified polyacrylate prepolymer described in such scheme can be by polyether Glycols,
Diisocyanate is prepared with methacrylic acid -2- hydroxy methacrylates, and the amount ratio of three's material is：40: (2～5): (0.8～
1.2).The polyether Glycols be two degrees of functionality polyalcohol (propane diols/ethylene glycol) be initiator, under alkalescence condition or with
Bimetal complex is catalyst, carries out the product of expoxy propane glycerol polymerization acquisition, and polyether Glycols molecular weight is 2000-
18000, preferred polytetrahydrofuran diol (PTMEG), the diisocyanate be IPDI (IPDI), hexichol
Dicyclohexylmethane diisocyanate (MDI), any one or various mixtures of hexamethylene diisocyanate (HMDI), preferably
IPDI.The preparation method of the polyurethane-modified polyacrylate prepolymer is：Under nitrogen atmosphere by polyether Glycols at 120 DEG C
Vacuum dehydration, is subsequently adding catalyst and diisocyanate and reacts 3-5 at 75-90 DEG C or so, is then cooled to≤40 DEG C, adds
Methacrylic acid -2- hydroxy methacrylates, are warmed up to 70-80 degree reaction 1-3 hours, and its NCO peak of sampling and testing is wholly absent, i.e., completely
Room temperature discharging packaging is cooled to after reaction；Wherein, polyether Glycols, diisocyanate and methacrylic acid -2- hydroxy methacrylates
The amount ratio of material is：40: (2～5): (0.8～1.2).By the polyurethane-modified polyacrylate pre-polymerization obtained by said method
More than 500%, Tg is less than -30 DEG C to the elongation of thing；With color inhibition, the characteristics of have multiple ethylenically unsaturated groups；Can
Ensure optical cement with stronger cubical contraction and elastic modelling quantity, so as to the LCD reduced using the optical cement occurs
Mura phenomenons.
In addition, the polyurethane-modified polyacrylate prepolymer can also be the product bought by commercial channel, for example
Can be the prepolymer of the product type for CN9014NS, CN9021NS of Sartomer Guangzhou Chemical Co., Ltd. production, or
Synthesis Co., Ltd. of Japan UV-3000B, UV-3001, the production of TE-2000, Rahn AG companies of Tso Tat Co., Ltd., JapanRCX-275、4652、RCX-468。
Specifically, the activity diluting monomer be hydroxy-ethyl acrylate, hydroxypropyl acrylate, isobornyl acrylate, third
Olefin(e) acid lauryl, acryloyl morpholine, tetrahydrofuran acrylate, octadecyl acrylate, ethoxyethoxyethyl acrylate,
In hydroxy propyl methacrylate, hydroxyethyl methacrylate, GMA, polyethyleneglycol diacrylate
One or more mixing.The plasticizer be hydrogenation rosin resin, hydrogenation terpene resin, polybutadiene oligomer,
One or more mixture in polyether Glycols, ether alcohol binary acid diester, the ether ethylene glycol unitary acid diester of HMW；Example
Such as can be the PLASTHALL 226 and the Special of TegMeR 804 of the production of HALLSTAR companies of the U.S..The UV is light-initiated
Agent is 2,4,6,-trimethylbenzoy-dipheny phosphorous oxide, 2- hydroxy-2-methyl -1- phenyl -1- acetone, 1- hydroxy cyclohexylphenyls
One or more mixing in double (2,4, the 6- trimethylbenzoyl) phosphine oxides of base phenyl ketone, phenyl；The peroxide
Compound is that cumyl hydroperoxide, cumyl peroxide, peroxidized t-butyl perbenzoate, peroxidating 3.3.5 trimethyls are sour
One or more mixing in the tert-butyl ester；The chain-transferring agent is n-dodecyl mercaptan, (the 3- sulfydryls third of pentaerythrite four
Acid) ester, the one or two kinds of in trimethylolpropane-three (3- mercaptopropionic acids) ester be mixed above.The antioxidant is institute
It is hindered phenol anti-oxidants or ultraviolet attractant to state antioxidant, for example, can be specifically BASF AG's production
TINUVIN 328。
Without the problem site curing to shade is required in attaching process, can be solidified well with UV, there is provided very
Good adhesive strength, then need not carry out using primary coat.But be often shade position in the production technology of many touch-screens
Glue cannot be solidified, enough adhesive strengths cannot be provided, so as to cause the problems such as degumming, exposure, so in shadow part
Position cannot carry out recommending silane coupling agent when UV.Silane coupling agent is part important in redox reaction, containing phase
The reducing agent of pass and accelerator, can greatly promote peroxide and resolve into living radical, promote reaction to carry out, contained in primary coat
Some materials.Further, described UV/ primary coat dual cures liquid optical cement also includes following raw material system in parts by weight
Standby silane coupling agent：
5～50 parts of metal complex
2～20 parts of aminated compounds
50～90 parts of organic solvent.
Further, described UV/ primary coat dual cures liquid optical cement also includes following raw material system in parts by weight
Standby silane coupling agent：
32～45 parts of metal complex
8～12 parts of aminated compounds
54～67 parts of organic solvent.
Specifically, in the raw material of above-mentioned silane coupling agent, a kind of metal in the metal complex copper, titanium, iron, vanadium, tin with
The complex compound of acetylacetone,2,4-pentanedione；The aminated compounds be fatty amine, the one or both mixture of aromatic amine；The organic solvent
For acetone or ethanol.
Specifically, the occupation mode of the silane coupling agent is first that light cannot shine at the laminating shade position of light display module
Where the surface of laminated material first equably brush one layer of silane coupling agent, then cross applying glue laminating after 20S, make glue and primary coat
Agent full contact is curable.
A kind of preparation method of UV/ primary coats dual cure liquid optical cement, comprises the following steps：
1) polyurethane-modified polyacrylate prepolymer, activity diluting monomer is added to keep true in planet homogenizer
Sky, with the rotating speed high-speed stirred of 250-350 turn/min to being well mixed, control temperature is less than 35 DEG C；
2) then sequentially add plasticizer, chain-transferring agent, antioxidant continue vacuum and turned with 250-350/rotating speed of min is high
Speed stirs；
3) UV light triggers and peroxide are eventually adding, the temperature of recycling water formulation bath is 40-45 DEG C, makes temperature of charge
20-40 minutes are stirred with the rotating speed high-speed vacuum of 250-350 turn/min when being maintained at 40 DEG C,
4) and then 10 microns are crossed not after adjusting the rotating speed vacuum defoamation 20-40 minutes that planet machine rotating speed is 20-40 turn/min
The filter screen packing of rust steel.
Further, above-mentioned preparation method also includes the step of preparing polyurethane-modified polyacrylate prepolymer：In nitrogen
By polyether Glycols in 120 DEG C of vacuum dehydrations under atmosphere, catalyst and diisocyanate are subsequently adding in 75-90 DEG C or so reaction
3-5, is then cooled to≤40 DEG C, adds methacrylic acid -2- hydroxy methacrylates, is warmed up to 70-80 degree reaction 1-3 hours, sampling
The peak for testing its NCO with infrared spectrometer is wholly absent, i.e., room temperature discharging packaging is cooled to after reacting completely；Wherein, polyethers two
The amount ratio of the material of first alcohol, diisocyanate and methacrylic acid -2- hydroxy methacrylates is：40: (2～5): (0.8～1.2).
Specific embodiment of the present invention is the following is, raw material, the reagent for being adopted in the following embodiments can pass through business
Industry channel is commercially available.
Embodiment 1
Prepare polyurethane-modified polyacrylate prepolymer：100 grams of polytetrahydrofuran diol PTMEG are existed under current atmosphere
Vacuum dehydration 2 hours in the case of 120 degree, are subsequently adding 0.1 gram of octoate catalyst stannous and 7.8 grams of isophorone diisocyanates
Ester (IPDI) reacts 4 hours in the case of 80 degree or so, then cools to 40 degree, 0.5 gram of BHT is added, to 0.2 gram of epoxide of first
Phenol and 2.6 grams of HEMA, are then warmed up to 70-80 degree and react 2 hours, and the peak that sampling infrared spectrometer tests its NCO is complete
Disappear, i.e., room temperature discharging packaging is cooled to after reacting completely, be named as UE-1.
Embodiment 2
A kind of liquid optical cement of the superelevation elongation of UV/ primary coats dual cure, its raw material and composition are following (weight portion)：
Its preparation method is comprised the following steps：
1) polyurethane-modified polyacrylate prepolymer, activity diluting monomer is added to keep true in planet homogenizer
Sky, with the rotating speed high-speed stirred of 250 turns/min to being well mixed, controls temperature for 35 DEG C；
2) then sequentially add plasticizer, chain-transferring agent, antioxidant continue with the rotating speed vacuum high-speed stirring of 350 turns/min
Mix uniform；
3) UV light triggers and peroxide are eventually adding, the temperature of recycling water formulation bath is 45 DEG C, and band temperature of charge is protected
Hold and stirred 20 minutes with the rotating speed high-speed vacuum of 250 turns/min at 40 DEG C,
4) and then adjustment planet machine rotating speed is 40 turns/min, vacuum defoamation crosses 10 microns of stainless steel filtering nets point after 20 minutes
Dress.
Embodiment 3
A kind of liquid optical cement of the superelevation elongation of UV/ primary coats dual cure, its raw material and composition are following (weight portion)：
Its preparation method is comprised the following steps：
1) polyurethane-modified polyacrylate prepolymer, activity diluting monomer is added to keep true in planet homogenizer
Sky, with the rotating speed high-speed stirred of 300 turns/min to being well mixed, controls temperature for 30 DEG C；
2) then sequentially add plasticizer, chain-transferring agent, antioxidant continue with the rotating speed vacuum high-speed stirring of 250 turns/min
Mix uniform；
3) UV light triggers and peroxide are eventually adding, the temperature of recycling water formulation bath is 40 DEG C, and band temperature of charge is protected
Hold and stirred 30 minutes with the rotating speed high-speed vacuum of 300 turns/min at 40 DEG C,
4) and then adjustment planet machine rotating speed is 30 turns/min, vacuum defoamation crosses 10 microns of stainless steel filtering nets point after 30 minutes
Dress.
Embodiment 4
A kind of liquid optical cement, its raw material and composition are following (weight portion)：
Prepare according to the conventional method.
Comparative example 1
Presently commercially available G+G is following (weight portion) with list UV solidification liquid optical cement raw materials and proportioning：
Prepare according to the step of embodiment 3.
Testing result
The performance of the optical cement in above-described embodiment 2-4 is detected
The silane coupling agent used is needed to be prepared from the following materials (weight portion) in primary coat solidification：
20 parts of acetylacetone copper
3 parts of diethylenetriamine (DETA)
77 parts of acetone.
Above liquid optical cement, respectively Jing planets machine vacuum is uniformly dispersed primary coat agent prescription, and filters and packages respectively in special
The packing container of door, and marked product.Testing result is referring to Tables 1 and 2.
Table 1：Performance test results
Table 2：Reworkability test result
The result of Tables 1 and 2 shows：The cubical contraction and modular ratio comparative example 1 of the product of embodiment 2-4 is low
A lot, accordingly, it is capable to effectively reduce the generation of the Mura phenomenons of LCD, so as to better adapt to now lightening structure trend；By
Peroxide is not added in embodiment 3, so glue does not react to form solidification with silane coupling agent, therefore using silane coupling agent this
Planting curing mode is effectively solidified the dash area in component, substantially increases the reliability of product；It is last from reprocessing
From the point of view of performance, the product of embodiment 2-4 causes to reprocess more with the toughness of the superelevation elongation at break more than 1000% and colloid
Rapid and convenient, alleviate manufacturer reprocesses cost, substantially increases production efficiency.
Above-mentioned embodiment is only the preferred embodiment of the present invention, it is impossible to limit the scope of protection of the invention with this,
The change and replacement of any unsubstantiality that those skilled in the art is done on the basis of the present invention belongs to institute of the present invention
Claimed scope.
Claims (8)
1. a kind of UV/ primary coats dual cure liquid optical cement, it is characterised in that it includes prepared by following raw material in parts by weight
Liquid optical cement：
Wherein, the polyurethane-modified polyacrylate prepolymer is by polyether Glycols, diisocyanate and methacrylic acid -2- hydroxyls
Base ethyl ester is prepared, and the amount ratio of the material of polyether Glycols, diisocyanate and methacrylic acid -2- hydroxy methacrylates is：40∶
(2～5): (0.8～1.2).
2. UV/ primary coats dual cure liquid optical cement according to claim 1, it is characterised in that it is by with weight portion
The following raw material of meter is prepared from：
3. UV/ primary coats dual cure liquid optical cement according to claim 1, it is characterised in that the polyether Glycols
Molecular weight be 2000～18000, the diisocyanate be IPDI, methyl diphenylene diisocyanate,
One or two kinds of in hexamethylene diisocyanate is mixed above.
4. UV/ primary coats dual cure liquid optical cement according to claim 1, it is characterised in that the activity dilution is single
Body is hydroxy-ethyl acrylate, hydroxypropyl acrylate, isobornyl acrylate, lauryl acrylate, acryloyl morpholine, tetrahydrofuran
Acrylate, octadecyl acrylate, ethoxyethoxyethyl acrylate, hydroxy propyl methacrylate, hydroxyethyl methacrylate
One or more mixing in ethyl ester, GMA, polyethyleneglycol diacrylate；The plasticizer
For the rosin resin of hydrogenation, terpene resin, polybutadiene oligomer, the polyether Glycols of HMW, the ether alcohol binary of hydrogenation
One or more mixture in acid diester, ether ethylene glycol unitary acid diester；The UV light triggers are 2,4,6 ,-trimethylbenzene
Formoxyl-diphenyl phosphate oxidation, 2- hydroxy-2-methyl -1- phenyl -1- acetone, 1- hydroxycyclohexyl phenyl ketones, phenyl are double
One or more mixing in (2,4,6- trimethylbenzoyl) phosphine oxide；The peroxide is hydrogen peroxide isopropyl
Benzene, cumyl peroxide, peroxidized t-butyl perbenzoate, peroxidating 3.3.5 trimethyls one kind or two in tert-butyl acrylate
Plant mixed above；The chain-transferring agent is n-dodecyl mercaptan, pentaerythrite four (3- mercaptopropionic acids) ester, trihydroxy methyl third
One or two kinds of in alkane-three (3- mercaptopropionic acids) ester is mixed above.
5. UV/ primary coat dual cure liquid optical cements according to any one of claim 1-4, it is characterised in that it is also wrapped
Include the silane coupling agent that following raw material in parts by weight is prepared from：
5～50 parts of metal complex
2～20 parts of aminated compounds
50～90 parts of organic solvent.
6. UV/ primary coats dual cure liquid optical cement according to claim 5, it is characterised in that the metal complex
The complex compound of a kind of metal and acetylacetone,2,4-pentanedione in copper, titanium, iron, vanadium, tin；The aminated compounds is fatty amine, aromatic amine
One or both mixture；The organic solvent is acetone or ethanol.
7. a kind of preparation method of UV/ primary coats dual cure liquid optical cement as claimed in claim 1, it is characterised in that bag
Include following steps：
1) polyurethane-modified polyacrylate prepolymer, activity diluting monomer is added to keep vacuum in planet homogenizer, with
To being well mixed, control temperature is less than 35 DEG C to the rotating speed high-speed stirred of 250-350 turn/min；
2) and then plasticizer, chain-transferring agent, antioxidant are sequentially added continue vacuum/rotating speed the high-speed stirring of min is turned with 250-350
Mix uniform；
3) UV light triggers and peroxide are eventually adding, the temperature of recycling water formulation bath is 40-45 DEG C, keeps temperature of charge
At 40 DEG C with the rotating speed high-speed vacuum stirring 20-40 minutes of 250-350 turn/min,
4) and then after adjusting the rotating speed vacuum defoamation 20-40 minutes that planet machine rotating speed is 20-40 turn/min 10 microns of stainless steels are crossed
Filter screen is dispensed.
8. preparation method according to claim 7, it is characterised in that the preparation method also includes preparing polyurethane-modified third
The step of olefin(e) acid ester prepolymer：Under nitrogen atmosphere polyether Glycols are subsequently adding into catalyst and two in 120 DEG C of vacuum dehydrations
Isocyanates reacts 3-5 at 75-90 DEG C, is then cooled to≤40 DEG C, adds methacrylic acid -2- hydroxy methacrylates, is warmed up to 70-
80 degree of reaction 1-3 hours, sampling infrared spectrometer is tested the peak of its NCO and is wholly absent, i.e., reacts completely, and room is cooled to afterwards
Temperature discharging packaging；Wherein, the amount ratio of the material of polyether Glycols, diisocyanate and methacrylic acid -2- hydroxy methacrylates is：40
: (2～5): (0.8～1.2).
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| CN111548739B (en) * | 2019-02-11 | 2022-03-01 | 3M创新有限公司 | Ultraviolet light curing adhesive |
| CN110591633A (en) * | 2019-09-09 | 2019-12-20 | 深圳日高胶带新材料有限公司 | Polyurethane modified acrylate UV (ultraviolet) curing pressure-sensitive adhesive |
| CN115216237A (en) * | 2021-05-20 | 2022-10-21 | 江苏斯迪克新材料科技股份有限公司 | Protective film for display screen |
| CN115216254A (en) * | 2021-05-20 | 2022-10-21 | 江苏斯迪克新材料科技股份有限公司 | Optical cement for electronic product and preparation method thereof |
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| US5883148A (en) * | 1996-08-22 | 1999-03-16 | Acheson Industries, Inc. | UV curable pressure sensitive adhesive composition |
| CN101205451A (en) * | 2007-11-30 | 2008-06-25 | 华南理工大学 | Ultraviolet-anaerobic dual curing adhesive |
| CN103087670A (en) * | 2013-01-09 | 2013-05-08 | 东莞优邦材料科技有限公司 | Ultraviolet and primary coat dual-curing touch screen adhesive |
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2015
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| US5883148A (en) * | 1996-08-22 | 1999-03-16 | Acheson Industries, Inc. | UV curable pressure sensitive adhesive composition |
| CN101205451A (en) * | 2007-11-30 | 2008-06-25 | 华南理工大学 | Ultraviolet-anaerobic dual curing adhesive |
| CN103087670A (en) * | 2013-01-09 | 2013-05-08 | 东莞优邦材料科技有限公司 | Ultraviolet and primary coat dual-curing touch screen adhesive |
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|---|---|
| CN104726052A (en) | 2015-06-24 |
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