Summary of the invention
It is an object of the invention to provide a kind of new Photocurable composition.Pass through compositional selecting and optimization, said composition
It is applicable to free radical type, cationic and mixes type photocuring system, there is pole to the light source in 200-500nm wave-length coverages
Good response, curing rate is fast, and developability and pattern integrity are good, and solidification film hardness is high, and the adhesive force on base material is strong.
Specifically, Photocurable composition of the invention, includes following components:
(A) anthracene esters sensitizer, selected from the compound of structure shown in formula (I) and/or using formula (I) compound be main
The macromolecular compound of structure:
R1And R2Hydrogen, nitro, cyano group, halogen, C are represented independently of one another1-C20Straight or branched alkyl, C3-C20Ring
Alkyl, C4-C20Alkyl-cycloalkyl or cycloalkyl-alkyl, C2-C10Alkenyl;
R3-R10Hydrogen, nitro, cyano group, halogen, C are represented independently of one another1-C40Straight or branched alkyl, C3-C40Ring
Alkyl, C4-C40Alkyl-cycloalkyl or cycloalkyl-alkyl, C2-C40Alkenyl, C6-C40Aryl ,-O-CO-R groups, R generations
Table halogen, C1-C20Straight or branched alkyl, C3-C20Cycloalkyl, C4-C20Alkyl-cycloalkyl or cycloalkyl-alkyl, C2-
C20Alkenyl, C6-C20Aryl, C2-C40Contain ester group, C2-C40Contain cycloalkyl groups, C3-C20Taken by halogen
The alkyl in generation;Wherein, R3-R10In at least one be-O-CO-R groups;
Also, acyclic-the CH in these groups2- optionally (optionally) by-O- ,-CO- ,-NH- ,-S- or 1,
4- phenylenes are replaced;
(B) response type compound, including at least one compound containing unsaturated double-bond and/or at least one contain epoxy
Compound;
(C) light trigger corresponding with component (B) type.
The Photocurable composition of the present invention has good response to the light in 200-500nm wave-length coverages, is applicable light source
Including but not limited to mercury lamp, halogen lamp, Non-polarized lamp, LED, laser etc..
In view of its excellent performance, Photocurable composition of the invention can be applied in paint, coating, ink and forming material
In terms of material, it is particularly applicable to make:Applied on the base materials such as plastics, metal, glass, ceramics, timber, wall, optical fiber
The coating of cloth;The Protective coatings such as hard coating agent, anti-soil film, antireflection film, damping of shocks film;Photocuring binder, adhesive agent,
Light breakdown type coating, film, article shaped;The optical recording media of hologram material etc.;Optical mold resin, for example, 3D printing
With ink (resin), electronic circuit and semiconductor manufacturing with photoresist, colored filter, black matrix", dry film etc. in display
Electronic material is with photoresist etc.;Interlayer dielectric, light extraction film, brightness enhancement film, encapsulant;Silk-screen printing, offset printing, intaglio plate
The printing inks, inkjet printing light-curable ink such as printing;Eyeglass, lens array, light-guide wave path, light guide plate, light diffusing sheet,
The optical components such as diffraction element;Light separation material, rib wall, nano impression material;Etc..
Detailed description of the invention
The component of the Photocurable composition of the present invention mainly includes component (A)-(C), and this several component belongs to existing skill
Known class compound in art.By using cooperatively for this several component, the Photocurable composition is to 200-500nm wavelength models
Light source (such as mercury lamp and LED) in enclosing has splendid response, and curing rate is fast, and developability and pattern integrity are excellent, solidification
Film hardness is high, and the adhesive force on base material is strong, and cost is relatively low, and application effect is superior.
The Photocurable composition of the present invention mainly includes component (A)-(C), each component will be carried out below more detailed
Explanation.
<Component (A) anthracene esters sensitizer>
As the anthracene esters sensitizer of component (A), selected from the compound of structure shown in formula (I) and/or with formula (I) change
Compound is the macromolecular compound of primary structure:
R1And R2Hydrogen, nitro, cyano group, halogen, C are represented independently of one another1-C20Straight or branched alkyl, C3-C20Ring
Alkyl, C4-C20Alkyl-cycloalkyl or cycloalkyl-alkyl, C2-C10Alkenyl;
R3-R10Hydrogen, nitro, cyano group, halogen, C are represented independently of one another1-C40Straight or branched alkyl, C3-C40Ring
Alkyl, C4-C40Alkyl-cycloalkyl or cycloalkyl-alkyl, C2-C40Alkenyl, C6-C40Aryl ,-O-CO-R groups, R generations
Table halogen, C1-C20Straight or branched alkyl, C3-C20Cycloalkyl, C4-C20Alkyl-cycloalkyl or cycloalkyl-alkyl, C2-
C20Alkenyl, C6-C20Aryl, C2-C40Contain ester group, C2-C40Contain cycloalkyl groups, C3-C20Taken by halogen
The alkyl in generation;Wherein, R3-R10In at least one be-O-CO-R groups;
Acyclic-CH in above-mentioned group2- optionally replaced by-O- ,-CO- ,-NH- ,-S- or 1,4- phenylenes.
Herein, acyclic-CH2- refer to-CH that is not in cyclic structure2-, that is, exclude-the CH in cyclic structure2-。
“R3-R10" represent R3、R4、R5、R6、R7、R8、R9And R10。
Preferably, in structure shown in formula (I), R3-R10Hydrogen, nitro, cyano group, halogen, C are represented independently of one another1-
C20Straight or branched alkyl, C1-C20Alkoxy or-O-CO-R groups, and R3-R10In at least one be-O-CO-R bases
Group, R represents halogen, C1-C10Straight or branched alkyl, C3-C10Cycloalkyl, C4-C14Alkyl-cycloalkyl or cycloalkyl alkane
Base, C2-C10Alkenyl, C3-C20Contain ester group, C3-C20Contain cycloalkyl groups, C3-C20The alkane being optionally substituted by halogen
Base.
In R optional group, described refers to containing at least one-CO-O- or-O-CO- in group containing ester group,
For example can be containing (methyl) acrylate-based group;Preferably, in addition to ester group, other containing ester group
Structure division belongs to alkyl structure and/or alkenyl structure.It is described to refer to contain at least one in group containing cycloalkyl groups
Individual epoxide group (such as C2-C3Epoxy radicals);Preferably, in addition to epoxide group, the other structures portion containing cycloalkyl groups
Divide and belong to alkyl structure.
It is further preferred that in structure shown in formula (I), R3-R10Hydrogen, nitro, cyano group, halogen, C are represented independently of one another1-
C10Straight or branched alkyl, C1-C10Alkoxy or-O-CO-R groups, and R3-R10In at least one be-O-CO-R bases
Group, R is selected from following groups:
C2-C8Straight or branched alkyl;
C2-C8Alkenyl;
Wherein h=0-3, i=1-4, and as h=0, the hydrogen in cycloalkyl can be optional
Ground is by C1-C4Alkyl is replaced;
-(CH2)j-CO-O-CkH2k+1Or-(CH2)j-O-CO-CkH2k+1, wherein j=1-4, k=1-6;
-(CH2)r- O-CO-CH=CH2, wherein r=1-5;
Wherein m=1-3, n=0-5;
Wherein x=1-3, y=1-2, z=0-3;
Wherein p=1-5, q=0-5;
Cl、F、Br、-(CH2)s(CH2)tCCl、-(CH2)s(CH2)tCF、-(CH2)s(CH2)tCBr, wherein s=1-6, t=
1-6;
And the hydrogen in structure residing for h, j, r, m, x, y, p, s, t is optionally by C1-C4Alkyl is replaced.In these groups,
CkH2k+1、CnH2n+1、CzH2z+1And CqH2q+1Represent the straight or branched alkyl with corresponding carbon number;The value of carbon number includes
Integer value between end value and end value, such as h=0-3 represent that h can be 0,1,2 or 3;These are for those skilled in the art
Speech is very clearly and obvious.
In the compound of structure shown in formula (I), preferably R3-R10In one, two or four be-O-CO-R groups.
When there is two or four-O-CO-R groups, it is preferable that their present positions are symmetrical or center pair in anthracene structure
Claim.
Preferably, in structure shown in formula (I), R1And R2Hydrogen, nitro, cyano group, halogen, C are represented independently of one another1-
C10Straight or branched alkyl, C3-C10Cycloalkyl, C4-C10Alkyl-cycloalkyl or cycloalkyl-alkyl, C2-C6Alkenyl,
And acyclic-the CH in these groups2- optionally replaced by-O- ,-CO- or 1,4- phenylenes.
It is further preferred that R1And R2Hydrogen, nitro, cyano group, halogen, C are represented independently of one another1-C4Straight or branched alkane
Base, C3-C6Cycloalkyl, C4-C8Alkyl-cycloalkyl or cycloalkyl-alkyl, C2-C6Alkenyl, it is and non-in these groups
Ring-CH2- optionally replaced by-O- or-CO-.
In the present invention, the compound with structure shown in formula (I) can be by commercially available or via existing known method
Easily it is made.For example, prepare can refer to CN104991418A, CN105001081A, CN105037587A,
Method described in JP2013107848A, herein introduces its full text to be used as reference.
As optional anthracene esters sensitizer, it is described can as the macromolecular compound of primary structure using formula (I) compound
Be formula (I) compound pass through polymerize (including homopolymerization and copolymerization), esterification or ester exchange reaction formed by macromolecular compound.
Corresponding synthetic method can refer to interior described in the Chinese patent application of Publication No. CN104991418A, CN105001081A
Hold, herein introduce its full text to be used as reference.
Exemplarily, can be as the anthracene esters sensitizer of component (A) one kind in compound shown in having structure or
Two or more combinations:
In the Photocurable composition of the present invention, as the anthracene esters sensitizer of component (A) can be it is one or two kinds of with
The combination of upper compound, the compound is selected from the compound of structure shown in formula (I) and/or based on formula (I) compound
Want the macromolecular compound of structure.By percentage to the quality, the content of component (A) anthracene esters sensitizer in the composition is
0.001-10%, preferably 0.01-5%, more preferably 0.1-2%.
<Component (B) response type compound>
Response type compound is the key reaction body in photocuring system, generally there is cationoid reaction type compound and freedom
The class of base response type compound two.Component (B) response type compound in the present invention includes at least one chemical combination containing unsaturated double-bond
Thing and/or at least one contain epoxy compounds.Compound can be the chemical shape such as monomer, prepolymer, oligomer, polymer
State.
The compound containing unsaturated double-bond is selected from (methyl) acrylic ester compound and/or alkenyl ethers chemical combination
Thing.
(methyl) acrylic ester compound can be selected from:(methyl) alkyl acrylate, (methyl) dihydroxypropyl
Ester, (methyl) acrylate of (poly-) aklylene glycol, (methyl) acrylate or its dicarboxylic acids of ternary above polyalcohol change
Property thing, epoxy acrylate, polyurethane (methyl) acrylate, polyester acrylate, (methyl) of terminal hydroxyl fluidized polymer
Acrylate, (methyl) acrylate of the oligomeric resin such as urethane resin, silicone resin, spirane resin.
Consider from the using effect such as factor such as curing efficiency, developability, film hardness, base material adhesive force, (methyl) third
Olefin(e) acid ester type compound is preferably (methyl) alkyl acrylate, (methyl) acrylate of (poly-) aklylene glycol, more than ternary
More than one or both of (methyl) acrylate of polyalcohol, epoxy acrylate, polyurethane (methyl) acrylate
Combination.
Without limitation, described (methyl) acrylic ester compound may be selected from one or both of following compounds with
On combination:(methyl) methyl acrylate, (methyl) butyl acrylate, (methyl) isobutyl acrylate, (methyl) acrylic acid uncle
Butyl ester, (methyl) cyclohexyl acrylate, (methyl) ethylhexyl acrylate, (methyl) n-octyl, (methyl) acrylic acid
Different monooctyl ester, bisphenol A epoxy acrylate resin, ethylene glycol two (methyl) acrylate, diethylene glycol two (methyl) acrylate,
Triethylene glycol two (methyl) acrylate, propane diols two (methyl) acrylate, tripropylene glycol two (methyl) acrylate,
1,4- butanediols two (methyl) acrylate, 1,6-HD two (methyl) acrylate, trimethylolethane trimethacrylate (methyl) third
Olefin(e) acid ester, trimethylolpropane tris (methyl) acrylate, pentaerythrite three (methyl) acrylate, pentaerythrite four (methyl)
Acrylate, dipentaerythritol five (methyl) acrylate, dipentaerythritol six (methyl) acrylate etc..
The alkenyl ether compound may be selected from vinyl ethers, 1- acrylic ethers, 1- cyclobutenyls ethers, 1- amylenes
Pyridyl ethers compound, optimal ethylene pyridyl ethers compound.It is highly preferred that vinyl ethers compound may be selected from Triethylene glycol divinyl
Base ether, 1,4- cyclohexane dimethanols divinyl ether, 4- hydroxy butyl vinyl ethers, glycerol carbonate vinyl ethers, dodecyl
Combination more than one or both of vinyl ethers etc..
Described is selected from glycidyl ether type epoxy resin, glycidyl ester epoxy resin, contracting containing epoxy compounds
Water glycerine amine epoxy resin, linear aliphatic same clan epoxy resin, aliphatic category epoxy resin and oxygen heterocycle butane.
The effect such as factor such as curing efficiency, developability, film hardness, base material adhesive force used from compatibility considers, above-mentioned to contain
Glycidyl ether type epoxy resin, the fat such as the preferred bisphenol A type epoxy resin of epoxy compounds, aliphatic glycidyl ether resin
Fat same clan epoxy resin and oxygen heterocycle butane.
Exemplary type, it is described containing epoxy compounds can be glycerin triglycidyl ether, ethylene glycol and shrink sweet
Oily ether, 3,4- epoxycyclohexyl-methyl -3,4- epoxycyclohexyls formic acid esters, ethanedioic acid double (3,4- epoxycyclohexanecarboxylates), three
Hydroxymethyl-propane glycidol ether, 1,2- epoxy -4- vinyl cyclohexanes, 2,2'- [(1- methyl ethylidene) double (4,1- Asias benzene
Base formaldehyde)] homopolymer (bisphenol A type epoxy resin) of bisoxirane, 3- Oxyranyle 7- oxabicyclos [4,1,0] heptan
Alkane, ethylene glycol bisglycidyl ether, C12-C14Alkyl glycidyl ether, 3- methyl -3- ethene hydroxymethyl-oxetane, 3- first
Double (3- ethyl -3- oxetanylmethoxies) butane of many ethoxylated methyl oxetanes of base -3- ethene hydroxyls, 1,4-,
1,6- double (3- ethyl -3- oxetanylmethoxies) hexane, pentaerythrites three (3- ethyl -3- oxetanylmethyls)
Ether, 3- methyl -3- hydroxymethyl oxetanes, 3- ethyl -3- hydroxymethyl oxetanes, 3- ethyls -3- (2- ethyl hexyls
Epoxide methyl) oxetanes, double [(3- ethyl -3- oxetanylmethoxies) methyl] propane of 1,3-, polyethylene glycol are double
(3- ethyl -3- oxetanylmethyls) ether, isobutoxymethyl (3- ethyl -3- oxetanylmethyls) ether, second two
Alcohol double (3- ethyl -3- oxetanylmethyls) ether, tristane diyl dimethylene (3- ethyl -3- oxetanyls
Methyl) ether, trimethylolpropane tris (3- ethyl -3- oxetanylmethyls) ether, (3- ethyl -3- the oxa-s of pentaerythrite four
Cyclobutane ylmethyl) more than one or both of ether etc. combination.
It is described to be also selected from containing epoxy compounds or including the change with following structure in addition to mentioned kind
Compound:
Above-mentioned (methyl) acrylic ester compound belongs to radical reaction type compound, belongs to sun containing epoxy compounds
Ionic reaction type compound, the characteristics of alkenyl ether compound then has two types simultaneously.Examined from the angle of performance priority
Consider, as response type compound, (methyl) acrylic ester compound is adapted to free radical type photocuring system, chemical combination containing epoxy radicals
Thing is adapted to cationic photocuring system, and then both of which is applicable alkenyl ether compound.
The present invention can flexibly select the composition of component (B) according to required photocuring system type.For radical UV curing
System, component (B) can be (methyl) acrylic ester compound and/or alkenyl ether compound;It is solid for cationic photopolymerization
Change system, component (B) can contain epoxy compounds and/or alkenyl ether compound;For mixing type photocuring system,
Component (B) can be (methyl) acrylic ester compound, containing epoxy compounds and optionally alkenyl ether compound
Combination.
In the Photocurable composition of the present invention, by percentage to the quality, the content of component (B) is 10-90%, preferably
40-90%.
<Component (C) light trigger corresponding with component (B) type>
In photocuring system, the classification correspondence of cation/radical reaction type compound and light trigger is very high, sun from
Sub- response type compound generally requires cationic photoinitiator to trigger polymerization, and radical reaction type compound then needs freedom
Fundamental mode light trigger, the effect that could have so obtained.
For cation photocuring system, i.e., when component (B) is selected from cationoid reaction type compound, component of the invention
(C) be cationic photoinitiator, and be one or both of aryl diazonium salts, salt compounded of iodine, sulfosalt, the luxuriant molysite of aryl with
On combination.
Based on considering for the composite factors such as cost, for example light-initiated efficiency of the effect used cooperatively, curing rate, component (C)
It is preferred that salt compounded of iodine and/or sulfosalt photoinitiator, the change particularly preferably with the structure as shown in following formula (II) and/or (III)
Compound:
Wherein, R11And R12Hydrogen, C are represented independently of one another1-C20Straight or branched alkyl, C4-C20Cycloalkyl-alkyl
Or acyclic-the CH in alkyl-cycloalkyl, and these groups2- optionally replaced by-O- ,-S- or 1,4- phenylenes;
R13And R14Hydrogen, C are represented independently of one another1-C20Straight or branched alkyl, C4-C20Cycloalkyl-alkyl or alkyl
Cycloalkyl, C6-C20Aryl, and the acyclic-CH in these groups2- optionally taken by-O- ,-S- or 1,4- phenylenes
Generation;
R15Represent C6-C20Aryl, C1-C20Straight or branched alkyl, C4-C20Cycloalkyl-alkyl or alkyl-cycloalk
Acyclic-CH in base, substitution or unsubstituted Phenylsulfanylphenyl, and these groups2- optionally by-O- ,-S- or 1,4-
Phenylene is replaced;
X-PF is represented independently of one another6 -、SbF6 -、CF3SO3 -、C4F9SO3 -、C8F17SO3 -、(SO2C4F9)2N-Or B (C6M5)4 -
(M represents H, F, Cl, Br).
As preferred structure, in the compound of structure shown in formula (II) and (III):
R11And R12Hydrogen, C are represented independently of one another1-C12Straight or branched alkyl, C4-C10Cycloalkyl-alkyl or alkyl
Acyclic-CH in cycloalkyl, and these groups2- optionally replaced by-O-;
R13And R14Hydrogen, C are represented independently of one another1-C10Straight or branched alkyl, C4-C10Cycloalkyl-alkyl or alkyl
Cycloalkyl, C6-C12Aryl, and the acyclic-CH in these groups2- optionally taken by-O- ,-S- or 1,4- phenylenes
Generation;
R15Represent C6-C10Aryl, the acyclic-CH in substitution or unsubstituted Phenylsulfanylphenyl, and these groups2-
Optionally replaced by-O- ,-S- or 1,4- phenylenes.
It is further preferred that above-mentioned salt compounded of iodine and sulfosalt photoinitiator can include following structure:
For radical UV curing system, i.e., when component (B) is selected from radical reaction type compound, component of the invention
(C) it is radical photoinitiator.
Common radical photoinitiator has Dialkoxy acetophenones class, alpha-hydroxyalkyl benzophenone class, α-amine alkyl phenones
Class, acylphosphine oxide, benzophenone, benzoin class, benzil class, heterocycle arone class, oxime ester lightlike initiating agent etc..
Based on considering for the composite factors such as cost, for example light-initiated efficiency of the effect used cooperatively, curing rate, in the present invention
Benzophenone, alpha-hydroxyalkyl benzophenone class and/or α-amine alkyl phenones are selected from as the radical photoinitiator of component (C)
Class, benzil class compound.
Exemplarily, be as the radical photoinitiator of component (C) one kind in compound shown in having structure or
Two or more combinations:
It is easily understood that for Free radical-Cationic Hybrid photocuring system, i.e., when simultaneously component (B) contains certainly
By base response type and cationoid reaction type compound when, component (C) of the invention by above-mentioned radical photoinitiator and sun from
Subtype light trigger is constituted.But there is also special circumstances --- in type Photocurable composition is mixed, contain salt compounded of iodine and/or sulphur
Cationoid reaction type compound crosslink solidification of the component (C) of salt type cationic light trigger in component (B) is triggered
During can discharge free radical simultaneously, and then further trigger the radical reaction type compound in component (B).Namely
Say, when component (C) includes salt compounded of iodine and/or sulfosalt photoinitiator, it is playing cationic photoinitiator effect
Simultaneously, it may have the partial function of free radical type.Now, radical photoinitiator and optional component.
In the Photocurable composition of the present invention, by percentage to the quality, the content of component (C) in the composition is
0.001-20%, preferably 0.1-10%.
<Component (D) other components>
In addition to said components (A)-(C), according to products application needs, Photocurable composition of the invention is also alternative
Ground adds organic and/or inorganic assistant commonly used in the art, including but not limited to pigment, levelling agent, dispersant, curing agent,
Surfactant, solvent etc., this will be apparent to those skilled in the art.In addition, not imitated to composition application
On the premise of fruit has a negative impact, other sensitizers and/or light trigger can be also added in composition with compounding use.
One or more macromoleculars or high-molecular compound are also optionally added in needs, said composition according to applying
To improve the application performance of composition in use, this macromolecular or high-molecular compound can be polyalcohol or polyester
Polyalcohol;Also the polymer for not containing reactive functionality is optionally added, these polymer are typically to contain phenolic hydroxyl group, carboxylic
The resin of the acidic functionalities such as base.
<The preparation of Photocurable composition>
The Photocurable composition of the present invention can be obtained by being well mixed after each component is weighed according to quantity.
The commercially available prod of curing field particularly mid- to high-end product is based on import at this stage, and these products possess mostly
Patented technology, product price is high, and domestic enterprise lacks core technology and independent intellectual property right, under tight technology barriers,
Enterprise development or even research and development layout all receive very big limitation.The present invention passes through constituent optimization, the sense of gained Photocurable composition
Optical wavelength range is big, and photocuring effect is good, is applied, has in many-sides such as paint, coating, ink, moulding materials
Stronger technology and the market competitiveness.
Embodiment
The present invention is described in further detail below with reference to specific embodiment, but be should not be construed as to the present invention
The limitation of protection domain.
Unless otherwise instructed, number described below is parts by weight.The reference implication respectively abridged is as follows:
A1:
A2:
A3:
A4:
B1:Dimethacrylate;
B2:Bisphenol A epoxy acrylate resin (SM6105-80);
B3:Dodecyl vinyl;
B4:Ethylene glycol and glycidol ether;
B5:
C1:
C2:
C3:
C4:
1st, Photocurable composition is prepared
Formula prepares Photocurable composition shown according to the form below 1.
Table 1
2nd, performance test
(1) film forming is tested under high-pressure sodium lamp
Photocurable composition is stirred under yellow fluorescent lamp, feeding dries 5min in roller coating film forming in PET templates at 90 DEG C
Solvent is removed, the film of about 2 μm of thickness is formed.The substrate for being formed with film is cooled to room temperature, mask plate is enclosed, uses high-pressure mercury
Lamp (exposure machine model RW-UV70201, light intensity 50mW/cm2) irradiation film is exposed, time for exposure 30s.Visually observe
To evaluate the film forming situation of exposure area.
Develop with 30s is impregnated in the 1% NaOH aqueous solution at a temperature of 25 DEG C, then with milli-Q water, air-dry;Connect
Baking 30min after in 240 DEG C of baking oven, obtains the pattern of mask plate transfer.Base is observed with SEM (SEM)
Pattern on plate, to evaluate developability and pattern integrity.
Film forming situation evaluation criterion is as follows:
○:Film surface is smooth;
◎:There is flaw on film surface;
●:Can not film forming.
Developability evaluation criterion is as follows:
○:Residue is not observed in unexposed portion;
◎:In unexposed portion it was observed that a small amount of residue, but residual quantity can receive;
●:In unexposed portion it was observed that obvious residue.
Pattern integrity evaluation criterion is as follows:
○:Pattern defect is not observed;
◎:It was observed that fraction pattern has fewer defects;
●:Substantially it was observed that many pattern defects.
Evaluation result is as shown in table 2.
Table 2
(2) film forming is tested under LED/light source
Photocurable composition is stirred under yellow fluorescent lamp, feeding dries 5min in roller coating film forming in PET templates at 90 DEG C
Solvent is removed, the film of about 2 μm of thickness is formed.The substrate for being formed with film is cooled to room temperature, mask plate is enclosed, using wavelength
395nm, light intensity 1500mW/cm2LED/light source, the substrate of film will be formed with and be maintained at 10cm with fluorescent tube distance, be exposed
And detect its primary solidification time.
The primary solidification time refers to that in the case where LED/light source irradiates material surface hardness is reached with the Chinese board advanced drawing lead of 1H
Pen portrays the time for occurring without vestige, and the primary solidification time can be used to weigh the efficiency of initiation of light trigger.
After primary solidification, with identical in above-mentioned (1) develop and rear baking procedure, and evaluate using identical standard
Its developability and pattern integrity.
Test result is as shown in table 3 below.
Table 3
(3) base material adhesive force is tested
Using the Photocurable composition of embodiment 1 as representative, reference《The cut of GBT9286-1998 paint and varnish paint films is real
Test》, the skill in using a kitchen knife in cookery is drawn using hundred lattice, using QFH paint film lattice drawing instrument, adhesive force of the Photocurable composition on different substrate materials is surveyed
Examination.
Specific method is as follows:
Photocurable composition is uniformly applied on different base materials, solidification (is applied under high-pressure sodium lamp and LED lamp source respectively
Smear and condition of cure is as described above described in (1) and (2), without using mask plate, expose and exposed under 30s, LED/light source under high-pressure sodium lamp
3s), room temperature places 24h and carries out aging after the completion of solidification, then using cross-cut tester laterally and longitudinally each stroke of 1 knife to form 100
Tiny grid, then with each brush of hairbrush diagonal five times, is attached on otch with 3M600 adhesive tapes and pulled open again, use magnifying glass
The situation of grid area is observed, film is evaluated to base material degree of adhesion by evaluating the integrated degree of film in grid.Grid
Interior film is more complete, represents that adhesive ability is stronger.
Evaluation criterion is as follows:
A:The edge of otch is completely smooth, and grid edge does not have any peeling;
B:There is actual spoilage≤5% in small pieces peeling, Hua Ge areas in the intersection of otch;
C:There is peeling at the edge and/or intersection of otch, and its area 5%-30% (is free of 5%);
D:There is part to peel off or whole large stretch of peeling or all peelings along notching edge, or partial grid is peeled off by full wafer.Stripping
The area fallen is more than 30%.
Evaluation result is as shown in table 4 below.
Table 4
With reference to table 2-4 test result can be seen that the present invention Photocurable composition all have under mercury lamp and LED/light source
There is good photocuring effect, sensitivity is high, and curing rate is fast, and developability and pattern integrity are good, and hardness of film is high, not
With showing very strong adhesive force on base material.