CN109880497A - A kind of composition and a kind of anti-ball falling impact brightness enhancement film - Google Patents
A kind of composition and a kind of anti-ball falling impact brightness enhancement film Download PDFInfo
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Abstract
The present invention relates to function film fields, more particularly, to a kind of composition and a kind of anti-ball falling impact brightness enhancement film.In order to solve the problems, such as the not anti-ball falling impact of current brightness enhancement film, the present invention provides a kind of composition and a kind of anti-ball falling impact brightness enhancement film.Composition provided by the invention includes inorganic nano-particle, the first monomer, second comonomer, light-cured resin, photoinitiator and auxiliary agent.Brightness enhancement film provided by the invention includes brightness enhancement layer, and brightness enhancement layer composition provided by the present invention is made through ultraviolet light solidification.Brightness enhancement film prepared by the present invention not only brightness with higher and excellent anti-ball falling impact performance, but also have both the excellent properties such as high-hardness, wearable.Composition provided by the invention and brightness enhancement film preparation process are simple, easily operated, are convenient for industrialized production.
Description
Technical field
The present invention relates to function film fields, more particularly, to a kind of composition and a kind of anti-ball falling impact brightness enhancement film.
Background technique
Liquid crystal display panel has been widely used in computer, mobile phone, TV, navigator, digital camera and some instruments
On display screen.Since liquid crystal display panel itself does not shine, critical component one of of the backlight module as liquid crystal display panel is played
The enough brightness of offer and the effect of uniform light.
Basic composition of the backlight module in addition to light source from bottom to top includes: reflectance coating, light guide plate, diffusion barrier and brightness enhancement film
Deng wherein playing the mainly brightness enhancement film for promoting brightness function.With popularizing for mobile display, terminal client is to energy-efficient requirement
Higher and higher, demand of the market to the brightness enhancement film of high brightness is more and more.The principal element for influencing the brightness of brightness enhancement film is blast
The refractive index of the composition used when layer curing molding and the microstructure design of brightness enhancement layer；The composition used when curing molding
Refractive index is higher, and the brightness performance of the brightness enhancement film of preparation is higher.
With the development of touch screen technology, computer, mobile phone and many electronic products all introduce touch screen technology, however in length
In time use process, the position that finger or screen touch pen are frequently clicked on screen is easy to produce hickie.And in display equipment
It in use process, is frequently encountered other objects and pounds and fall on the screen, screen, which pounds the place of falling, can also generate white spot defect.Above white
Spot defect is mainly the micro-structure due to the brightness enhancement film in backlight module caused by external impact force damage.This is because blast
Film strips have slim and sexy micro-structure, so being easier to generate damage under external impact force than other optical diaphragms.So
How to solve the problems, such as that the anti-ball falling impact of brightness enhancement film is always a technical problem for perplexing the industry.
Preceding is usually in the market pure organic component suitable for producing the coating composition of brightness enhancement film, and pure organic component reflects
Rate is generally lower, and generally all 1.60 hereinafter, the brightness enhancement film brightness by polymerization reaction preparation is general, hardness is lower, anti-falling sphere
Impact property is poor.And inorganic nano-particle has lesser partial size, penetrating on light does not influence, while having high rigidity height resistance to
The characteristic of mill and high refractive index, provides a kind of thinking in order to solve the above problem.
Therefore, simple and effective manufacturing process is sought, developing one kind has high brightness, and anti-ball falling impact is had excellent performance,
The brightness enhancement film for having both high-hardness, wearable has become one project urgently to be solved of field of optical films, has important economic valence
Value and practical value.
Summary of the invention
In order to solve the problems, such as the not anti-ball falling impact of current brightness enhancement film, the present invention provides a kind of composition and a kind of anti-falls
Pellet impact brightness enhancement film.Brightness enhancement film prepared by the present invention not only brightness with higher and excellent anti-ball falling impact performance, simultaneously
Have both the excellent properties such as high-hardness, wearable.Brightness enhancement film preparation process provided by the invention is simple, easily operated, convenient for industrialization
Production.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical solutions:
The present invention provides a kind of composition, and the composition includes inorganic nano-particle, the first monomer, second comonomer, light
Solidified resin, photoinitiator and auxiliary agent.
Further, the raw material of the composition includes following compositions: inorganic nano-particle 8-45 parts by weight；First is single
Body: 10-50 parts by weight；Second comonomer: 5-40 parts by weight；Light-cured resin: 8-45 parts by weight；Photoinitiator: 1-10 parts by weight；
Auxiliary agent: 0.1-1 parts by weight；Wherein inorganic nano-particle, the first monomer, second comonomer, light-cured resin and photoinitiator it is total
Parts by weight are 100 parts.
Further, the raw material of the composition includes following compositions: inorganic nano-particle 12-40 parts by weight；First is single
Body: 15-45 parts by weight；Second comonomer: 10-35 parts by weight；Light-cured resin: 14-40 parts by weight；Photoinitiator: 2-7 weight
Part；Auxiliary agent: 0.3-0.6 parts by weight；Wherein inorganic nano-particle, the first monomer, second comonomer, light-cured resin and photoinitiator
Total weight parts be 100 parts.Preceding solution includes embodiment 4-8 and embodiment 10-11.
Further, the raw material of the composition includes following compositions: inorganic nano-particle 15-35 parts by weight；First is single
Body: 20-35 parts by weight；Second comonomer: 18-30 parts by weight；Light-cured resin: 17-35 parts by weight；Photoinitiator: 3-5 weight
Part；Auxiliary agent: 0.4-0.5 parts by weight；Wherein inorganic nano-particle, the first monomer, second comonomer, light-cured resin and photoinitiator
Total weight parts be 100 parts.Preceding solution includes embodiment 6-8.
Further, the refractive index of the composition is 1.55-1.64.
Further, the inorganic nano-particle is inorganic nanometer oxide particle, and inorganic nano carbide particle is inorganic
One of nano nitride particle and inorganic nano mineral particle or at least two combination.
Further, nano alumina particles are selected from when the inorganic nano-particle is inorganic nanometer oxide particle, are received
Rice silicon oxide particle, nano oxidized titanium particle, nano zinc oxide particles, nano zirconia particles, nano tin dioxide particle, nanometer
One of copper oxide particle or nano oxidized magnesium particle or at least two combination.
Further, it is selected from nano-SiC particle when the inorganic nano-particle is inorganic nano carbide particle, is received
Rice zirconium carbide particle, nano silicon carbide titanium particle, nano silicon carbide boron particles, in nano silicon carbide molybdenum particle or nano vanadium carbide particle
A kind of or few two kinds of combination.
Further, nano silicon nitride boron particles are selected from when the inorganic nano-particle is inorganic nano nitride particles, are received
Rice silicon nitride particles, nano silicon nitride titanium particle, nano silicon nitride aluminum particulate, in nano vanadium nitride particle or nanometer titanium oxynitrides particle
One kind or at least two combination.
Further, nano talc particle, nanometer are selected from when the inorganic nano-particle is inorganic nano mineral particle
One of montmorillonite particle or nanometer wollastonite particle or at least two combination.
Further, the inorganic nano-particle preferably is selected from nano silicon carbide titanium particle, nano-zirconium carbide particle, nano oxygen
Change zinc particles, nano oxidized titanium particle, one of nano zirconia particles or nano silicon nitride titanium particle or at least two group
It closes.
Further, the inorganic nano-particle preferably is selected from nano zinc oxide particles, nano oxidized titanium particle or nanometer
One of Zirconia particles or at least two combination.
Further, the partial size of the inorganic nano-particle is 10-80nm.
Further, the partial size of the inorganic nano-particle is 20-50nm.
Further, the partial size of the inorganic nano-particle is 20-40nm.
Further, first monomer is single official's acrylic monomers (F=1) or two official's acrylic monomers (F=2).
The F is the abbreviation of functional group.
Further, first monomer is a kind of single official's acrylic monomers (F=1) or two official's acrylic monomers (F=2)
Or at least two combination.
Further, when first monomer is list official acrylic monomers (F=1), first monomer is selected from neighbour
Phenyl benzene ethoxy acrylate, 2 (ethyoxyl) phenyl benzene ethoxy acrylates, 3 (ethyoxyl) phenyl benzene ethoxy propylenes
Acid esters, thanatol acrylate, phenylthio ethyl acrylate, 2- (p- cumenyl-phenoxy group)-ethyl olefin(e) acid ester,
M-phenoxy benzyl propylene acid esters, one of benzyl (methyl) acrylate or biphenylmethanol acrylate or at least two
The combination of kind.
Further, when first monomer is list official acrylic monomers (F=1), preferably adjacent phenyl benzene ethyoxyl
Acrylate, 2 (ethyoxyl) phenyl benzene ethoxy acrylates, m-phenoxy benzyl propylene acid esters or biphenylmethanol acrylic acid
One of ester or at least two combination.
Further, when first monomer is two official's acrylic monomers (F=2), first monomer is selected from 2
(ethyoxyl) bisphenol-A two (methyl) acrylate, 3 (ethyoxyl) bisphenol-A two (methyl) acrylate, 4 (ethyoxyl) bisphenol-As two
(methyl) acrylate, 8 (ethyoxyl) bisphenol a diacrylates, 10 (ethyoxyl) bisphenol-A two (methyl) acrylate, 20 (second
Oxygroup) bisphenol a diacrylate, 2 (ethyoxyl) bisphenol fluorene two (methyl) acrylate, 4 (ethyoxyl) bisphenol fluorene diacrylates
Ester, 6 (ethyoxyl) bisphenol fluorene diacrylates, 8 (ethyoxyl) bisphenol fluorene diacrylates, 10 (ethyoxyl) bisphenol fluorene, two propylene
Acid esters, 15 (ethyoxyl) bisphenol fluorene diacrylates, 20 (ethyoxyl) bisphenol fluorene diacrylates or tristane dimethyl two
One of acrylate or at least two combination.
Further, when first monomer is two official's acrylic monomers (F=2), first monomer is preferably 2
(ethyoxyl) bisphenol a diacrylate, 2 (ethyoxyl) bisphenol fluorene diacrylates or 4 (ethyoxyl) bisphenol fluorene diacrylates
One of or at least two combination.
Further, the second comonomer is more official's acrylic monomers (F >=3).For example, F=3-15.Such as: F=3, F
=4, F=5, F=6, F=8, F=9, F=10 or F=15.
Further, the second comonomer is the combination of more official's acrylic monomers (F >=3) or at least two.
Further, when the second comonomer is three official's acrylate (F=3), the second comonomer is selected from three (2- hydroxyl second
Base) isocyanuric acid triacrylate, trimethylolpropane tris (methyl) acrylate, pentaerythritol triacrylate, 3 (ethoxies
Base) in trimethylolpropane tris (methyl) acrylate or 9 (ethyoxyl) trimethylolpropane tris (methyl) acrylate one
Kind or at least two combination.
Further, when the second comonomer is four official's acrylate (F=4), the second comonomer is selected from pentaerythrite
Tetraacrylate or 4 (ethyoxyl) pentaerythritol tetraacrylates, two (trimethylolpropane) tetraacrylates or two kinds
Combination.
Further, when the second comonomer is face acrylate (F=5), the second comonomer is dipentaerythritol
Five acrylate.
Further, when the second comonomer is six official's acrylate (F=6), the second comonomer is selected from double Ji Wusi
Six acrylate of alcohol, 13 (ethyoxyl) double pentaerythritol methacrylates, the GU6100L of Guo Jing Chemical Co., Ltd.,
One of GU6200Z, GU6300Y or GU6600Y, or UT3009, R-7496 or UT58938 for moistening chemical industry difficult to understand or at least two
The combination of kind.
Further, when the second comonomer is eight official's acrylate (F=8), the second comonomer selects Changxing chemical industry
6361-100 or DR-E530 or two kinds of combination.
Further, when the second comonomer is nine official's acrylate (F=9), the second comonomer is selected from state and refines
The combination of one of FSP73298 of the GU7200Z of Co., Ltd, the CN9013 of Sartomer or profit chemical industry difficult to understand or at least two.
Further, when the second comonomer is ten official's acrylate (F=10), the second comonomer is selected from state and refines
The GU7400Z or GU7900Z of Co., Ltd, or moisten in the UT53956 of chemical industry difficult to understand or the DR-U96 or 6195-100 of Changxing chemical industry
One kind or at least two combination.
Further, when the second comonomer is ten face acrylate (F=15), the second comonomer is refined selected from state
Learn the combination of one of the GU7500Z of Co., Ltd or 6363 or 6196-100 of Changxing chemical industry or at least two.
Further, first monomer is single official's acrylic monomers (F=1), and the second comonomer is six official's propylene
Acid esters (F=6), eight official's acrylate (F=8), nine official's acrylate (F=9) or ten official's acrylate (F=10).Aforementioned skill
Art scheme includes embodiment 4-8, embodiment 10-11.
Further, first monomer is single official's acrylic monomers (F=1), and the second comonomer is nine official's propylene
Acid esters (F=9) or ten official's acrylate (F=10).Preceding solution includes embodiment 6-8.
Further, the light-cured resin is selected from polyester acrylate resin, polyurethane acrylic resin, polyoxyalkylene acrylate
One of resin or epoxy acrylic resin or at least two combination.
Further, unsaturated containing two or more ethylene types in the molecular structure of the light-cured resin
Double bond.
Further, the light-cured resin is preferably one of polyester acrylate resin or polyurethane acrylic resin
Or two kinds of combination.
Further, the light-cured resin is preferably polyurethane acrylic resin.
Further, the photoinitiator is selected from 2- hydroxy-methyl phenyl-propane -1- ketone (1173), 1- hydroxy-cyclohexyl
Phenyl ketone (184), 2- methyl-1-(4- methyl mercapto phenyl)-2- morpholinyl-1- acetone (907), benzoin dimethylether (651),
2,4,6- trimethyl benzoyl diphenyl base phosphine oxide benzophenone (BP) or 2,4,6- trimethylbenzoy-dipheny oxygen
Change the combination of one of phosphine (TPO) or at least two.
Further, the photoinitiator is selected from one of TPO or 1173 or combinations thereof.
Further, the auxiliary agent is slipping agent.
Further, the slipping agent is commercially available common slipping agent, is selected from WE-D5410, WE-D5433, WE-
D5450, WE-D5457, WE-D7300, WE-D7500, WE-D7700, BYK-UV3500, BYK-UV3530, BYK-UV3535,
BYK-333, one of BYK-3570, BYK-378 or BYK-3510 or at least two combination.
Further, the slipping agent is in WE-D7700, WE-D7500, BYK-UV3500 or BYK-3535
It is a kind of or at least two combination.
Further, the slipping agent is selected from one of WE-D7700 or BYK-3500.
The present invention also provides a kind of brightness enhancement film, the brightness enhancement film includes the brightness enhancement layer with micro-structure.
Above-mentioned brightness enhancement film is applied in the backlight module of liquid crystal display, plays the function that optically focused improves brightness.
Further, the raw material of the brightness enhancement layer is composition provided by the invention.The brightness enhancement layer is provided by the present invention
Composition solidification after formed.
Further, the composition of the invention solidifies the curing mode used when brightness enhancement layer is made as UV light
Change；Further, UV energy is 300-600mJ/cm when composition solidification2。
Further, the brightness enhancement layer has micro-structure, and the micro-structure is micro-prism structure or microlens structure.
Further, the prism bar height of the micro-prism structure is 5-60 μm, and corner angle are 75-115 °.
Further, the prism bar is the linear type of wobble structure or rule.
Further, the linear type of the rule is also known as contour linear type, refers to that the height of single prism bar is constant
's.
Further, the wobble structure refers to difference of height of the height there are gradual change of single prism bar.
Further, it is 30-50 μm that the prism bar of the micro-prism structure is highly preferred, and corner angle are preferably 80-100 °.
Further, it is 40-50 μm that the prism bar of the micro-prism structure is highly preferred, and corner angle are preferably 90-100 °.
Further, the prism bar of the micro-prism structure is preferably isoline type (also referred to as contour linear type).
Further, the microlens structure is circular protrusions, and the diameter of the microlens structure is 10-200 μm, height
It is 2-100 μm, is highly the 1/5-2/3 of diameter.
Further, the contour line that the circular protrusions connect with transparent substrate layer is round or substantially circular, institute
The contour line for stating the longitudinal cross-section by highest point of circular protrusions is arc.Further, the circular protrusions have arc
Surface.
Further, the circular protrusions include hemispherical and class hemispherical dome structure.
Further, the diameter of the microlens structure is preferably 80-150 μm, in fact it is highly preferred that is 40-60 μm.Preferably,
Height is the 2/5-3/5 of diameter.
Further, the brightness enhancement film further includes substrate layer, and the brightness enhancement layer is coated on the side of substrate layer.
Further, the brightness enhancement film further includes scratch resistant layer, and the scratch resistant layer is coated on the other side of substrate layer.
Further, the material of the substrate layer be selected from polycarbonate (PC), polyethylene terephthalate (PET),
In polyamide (PA), polystyrene (PS), polyethylene (PE), polypropylene (PP) or polymethyl methacrylate (PMMA)
One kind or at least two combination.
Further, the material of the substrate layer is preferably PC, PA or PET.
Further, the material of the substrate layer is preferably PET.
Further, the substrate layer with a thickness of 10-300 μm.
Further, the thickness of the substrate layer is preferably 50-200 μm.
Further, the thickness of the substrate layer is preferably 75-188 μm.
Further, the preparation method of the brightness enhancement film includes the following steps:
(1) transparent substrate layer is made using bidirectional extending method；
(2) composition is coated on to the surface of substrate layer, is rolled through mold and ultraviolet radiation-curable, formation has micro- knot
The brightness enhancement layer of structure, so that the optical brightening membrane of high brightness be made.
Pass through the brightness enhancement film product of the available excellent combination property of ratio of each component in the regulation present composition.
Parts by weight by adjusting each component of composition can be with the refractive index of regulatory composition, so that the blast of high brightness be made
Film.The first monomer in composition primarily serves the effect of diluent, adjusts system by adjusting the parts by weight of the first monomer
The viscosity for obtaining composition, makes it have appropriate working viscosity range.Second comonomer in composition is more official's monomers in light
Play the role of improving crosslink density during curing reaction, makes the brightness enhancement layer obtained after solidifying that there is fine and close interpenetrating networks knot
Structure has high rigidity high impact resistance.Light-cured resin in brightness enhancement layer provides good between substrate layer for coating
Adhesive force effect.Auxiliary agent in composition is mainly slipping agent, and coating surface can be made to have preferable slipping, be conducive to mention
The scraping and wiping resistance performance of high brightness enhancement layer.Since brightness enhancement layer is prepared by composition by ultraviolet light curing reaction, between each component
It is closely connected by intermolecular chemical bond, forms fine and close inierpeneirating network structure, so the brightness enhancement film of preparation is with excellent
Anti- ball falling impact performance.
So brightness enhancement film provided by the invention has high brightness and excellent anti-ball falling impact performance, while having both very high hard
The excellent properties such as high abrasion are spent, mobile display field is can satisfy and the difference of high brightness brightness enhancement film is required.It is provided by the invention
The preparation method of brightness enhancement film uses optics film coating process preparation mature at present, and simple process is mature, and it is big to meet industrialization
The condition of batch production.
Compared with prior art, brightness enhancement film provided by the invention has apparent advantage compared with traditional brightness enhancement film, very well
Overcome current brightness enhancement film brightness it is lower and not anti-ball falling impact the shortcomings that；It solves traditional brightness enhancement film and is easily produced by external impacts
, there is the problem of white spot defect in raw Micro-architecture deterioration.Meanwhile blast membrane preparation method simple process provided by the invention, it is easy to
Operation, is convenient for industrialized production, also the environment-friendly advantage with VOC free discharge.
Brightness enhancement film provided by the invention is a kind of brightness enhancement film of high-hardness, wearable, has high brightness and excellent anti-falling sphere
Impact property, especially suitable for field of liquid crystal display, particularly suitable for being used in backlight module and lamp device, but be not limited to
On enumerate product.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of brightness enhancement film prepared by the present invention.
Fig. 2 is the structural schematic diagram of another brightness enhancement film prepared by the present invention.
Specific embodiment:
Below with reference to examples and drawings, the invention will be further elaborated, and following embodiment is to of the invention detailed
It describes in detail bright, is not the restriction to the claimed range of the present invention.The method is conventional method unless otherwise instructed.It is described
Raw material are commercial product unless otherwise instructed.
As shown in Figure 1, a kind of brightness enhancement film prepared by the present invention includes brightness enhancement layer 101, transparent substrate layer 102 and scratch resistant layer
103。
As shown in Fig. 2, another kind brightness enhancement film prepared by the present invention includes brightness enhancement layer 201, transparent substrate layer 202 and scratch resistant layer
203。
The present invention relates to the evaluations of composition and brightness enhancement film optical property to preparation.Required material and facility is
Current material and equipment.
The preparation method of composition provided by the invention includes the following steps:
(1) precise addition each component is mixed in parts by weight；
(2) mixture for obtaining step (1) disperses 2 hours under 800-1000r/min revolving speed, then filters, obtain
Composition.
The preparation method of the brightness enhancement film includes the following steps:
(1) transparent substrate layer is made using bidirectional extending method；
(2) composition is coated on to the surface of substrate layer, is rolled through mold and ultraviolet radiation-curable, formation has micro- knot
The brightness enhancement layer of structure, so that the optical brightening membrane of high brightness be made.
Wherein, include: to the evaluation of the optical property of composition
(1) composition drop refraction index test: is tested into its refractive index on Abbe refractometer (WAY-2S).
Wherein, include: to the evaluation of the physical property of brightness enhancement film and optical property
(1) light transmittance and mist degree test: the brightness enhancement film to be measured of an A4 is taken, light transmittance mist degree tester is put into
(NDH7000) its light transmittance or haze value are measured in.
(2) adhesive force is tested: being taken the diaphragm sample of A4 size to be put into high temperature and humidity case and is carried out RA test (reliability survey
Examination), RA condition are as follows: temperature is 65 DEG C, humidity 95%RH.Diaphragm sample is taken out after RA500 hours, to the sample of taking-up according to
National standard method GB/T9286-1988 carries out adhesive force test to it.RA test can be assessed in long-time use process,
The adhesive force stable case of brightness enhancement film.Wherein adhesive force test result is divided into 5 grades, and 1B-5B, wherein 1B is worst, and 5B is best.
(3) brightness enhancement layer hardness test: according to national standard method GB/T6739-1996, using measuring pencil durometer system
The hardness of standby brightness enhancement film brightness enhancement layer.Pencil hardness grade from soft to hard be respectively as follows: 6B, 5B, 4B, 3B, 2B, B, HB, F, H,
2H,3H,4H,5H,6H.Pencil hardness higher grade, shows that the scraping and wiping resistance performance of brightness enhancement layer is better.
(4) luminance test: taking the brightness enhancement film of an A4 size, is put into 20 cun of backlight modules according to test structure, in 24V
Voltage under light, test its brightness with luminance instrument (BH-7).
(5) anti-ball falling impact performance test: 250 μm of common PET substrate for taking an opening and closing to fit size is placed on marble
On test platform, the brightness enhancement film brightness enhancement layer of A4 size is fixed in PET base material upwards, then allows acrylic medicine ball (material
PMMA, diameter 7.5cm) freely falling body impact is carried out in brightness enhancement film, height of fall is 15cm apart from brightness enhancement film.After impact
Brightness enhancement film is placed in the backlight with light guide plate, and observation is generated the severity of hickie by impact position.Generate the serious of hickie
Degree is divided into 5 grades, respectively 1 grade represent it is very slight；2 grades represent slightly；3 grades represent generally；4 grades represent it is more serious；5
Grade represents serious.Wherein the severity of hickie represents the quality of anti-falling sphere performance, and the hickie of generation is slighter, illustrates brightness enhancement film
Anti- ball falling impact performance it is better (1 grade)；The hickie of generation is more serious, illustrates the anti-ball falling impact performance poorer (5 of brightness enhancement film
Grade).
Embodiment 1
The present invention provides a kind of composition, and the composition includes inorganic nano-particle, the first monomer, second comonomer, light
Solidified resin, photoinitiator and auxiliary agent.
The raw material of the composition includes following compositions: inorganic nano-particle: 12 parts by weight；First monomer: 37 parts by weight；
Second comonomer: 5 parts by weight；Light-cured resin: 45 parts by weight；Photoinitiator: 1 parts by weight；Auxiliary agent: 0.1 parts by weight；It is wherein inorganic
Nanoparticle is nano-silica particle, partial size 40nm；First monomer is biphenylmethanol acrylate；Second comonomer is season
Penta tetra-acrylate；Light-cured resin is polyoxyalkylene acrylate resin；Initiator is 2- hydroxy-methyl phenyl-propane -1- ketone
(1173)；Auxiliary agent is WE-D5410.
Brightness enhancement film is prepared by combination of the above object, the preparation method of the brightness enhancement film includes the following steps:
(1) transparent substrate layer is made using bidirectional extending method；
(2) composition is coated on to the surface of substrate layer, is rolled through mold and ultraviolet radiation-curable, formation has micro- knot
The brightness enhancement layer of structure, so that the optical brightening membrane of high brightness be made.
Wherein, substrate layer is PET material, with a thickness of 100 μm；The micro-structure of the brightness enhancement layer is micro-prism structure, described
The prism bar height of micro-prism structure is 5 μm, and corner angle are 75 °, and prism bar is wobble structure.
Embodiment 2
Composition as described in Example 1, the raw material of the composition include following composition: inorganic nano-particle: 45 weights
Measure part；First monomer, 10 parts by weight；13 parts by weight of second comonomer；27 parts by weight of light-cured resin；5 parts by weight of photoinitiator；It helps
0.2 parts by weight of agent；Wherein inorganic nano-particle is nano oxidized titanium particle, partial size 10nm；First monomer is tristane
Dimethyl diacrylate；Second comonomer is three (2- ethoxy) isocyanuric acid triacrylates；Light-cured resin is polyethers third
Olefin(e) acid resin；Initiator is 1- hydroxy-cyclohexyl phenyl ketone (184)；Auxiliary agent is WE-D7300.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PE material, with a thickness of 10
μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 50 μm, and corner angle are 80 °,
Prism bar is wobble structure.
Embodiment 3
Composition as described in Example 1, the raw material of the composition include following composition: inorganic nano-particle: 14 weights
Measure part；First monomer, 15 parts by weight；40 parts by weight of second comonomer；21 parts by weight of light-cured resin；10 parts by weight of photoinitiator；It helps
0.9 parts by weight of agent；Wherein inorganic nano-particle is nano-SiC particle, partial size 80nm；First monomer is 8 (ethyoxyls)
Bisphenol a diacrylate；Second comonomer is 9 (ethyoxyl) trimethylolpropane trimethacrylates；Light-cured resin is epoxy third
Olefin(e) acid resin；Initiator is 2- methyl-1-(4- methyl mercapto phenyl)-2- morpholinyl-1- acetone (907)；Auxiliary agent is BYK-333.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PP material, with a thickness of
300μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 60 μm, and corner angle are
115 °, prism bar is contour linear type.
Embodiment 4
Composition as described in Example 1, the raw material of the composition include following composition: inorganic nano-particle: 12 weights
Measure part；First monomer, 31 parts by weight；10 parts by weight of second comonomer；40 parts by weight of light-cured resin；7 parts by weight of photoinitiator；It helps
0.3 parts by weight of agent；Wherein inorganic nano-particle is nano silicon carbide titanium particle, partial size 20nm；First monomer is 2 (ethyoxyls)
Bisphenol a diacrylate；Second comonomer is UT53956 (moistening Chemical Manufacture difficult to understand, F=10)；Light-cured resin is polyester acrylic
Resin；Initiator is 2- hydroxy-methyl phenyl-propane -1- ketone (1173)；Auxiliary agent is WE-D7500.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PC material, with a thickness of 75
μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 30 μm, and corner angle are 80 °,
Prism bar is contour linear type.
Embodiment 5
Composition as described in Example 1, the raw material of the composition include following composition: inorganic nano-particle: 40 weights
Measure part；First monomer, 15 parts by weight；26 parts by weight of second comonomer；14 parts by weight of light-cured resin；5 parts by weight of photoinitiator；It helps
0.6 parts by weight of agent；Wherein inorganic nano-particle is nano-zirconium carbide particle, partial size 30nm；First monomer is m-phenoxy
Benzyl propylene acid esters；Second comonomer is FSP73298 (moistening Chemical Manufacture difficult to understand, F=9)；Light-cured resin is polyester acrylic tree
Rouge；Initiator is 2,4,6- trimethylbenzoy-dipheny phosphine oxide (TPO)；Auxiliary agent is BYK-UV3535.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PA material, with a thickness of
200μm；The micro-structure of the brightness enhancement layer is microlens structure, and the microlens structure is hemispherical dome structure, the hemispherical junction
The diameter of structure is 150 μm, highly 2/5 for diameter, is highly 60 μm.
Embodiment 6
Composition as described in Example 1, the raw material of the composition include following composition: inorganic nano-particle: 35 weights
Measure part；First monomer, 20 parts by weight；18 parts by weight of second comonomer；23 parts by weight of light-cured resin；4 parts by weight of photoinitiator；It helps
0.4 parts by weight of agent；Wherein inorganic nano-particle is nano zinc oxide particles, partial size 20nm；First monomer is biphenylmethanol
Acrylate；Second comonomer is GU7200Z (state's essence chemical production, F=9)；Light-cured resin is polyurethane acrylic resin；Draw
Hair agent is 2- hydroxy-methyl phenyl-propane -1- ketone (1173)；Auxiliary agent is BYK-UV3500.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PET material, with a thickness of
188μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 40 μm, and corner angle are
90 °, prism bar is contour linear type.
Embodiment 7
Composition as described in Example 1, the raw material of the composition include following composition: inorganic nano-particle: 17 weights
Measure part；First monomer, 22 parts by weight；21 parts by weight of second comonomer；35 parts by weight of light-cured resin；5 parts by weight of photoinitiator；It helps
0.5 parts by weight of agent；Wherein inorganic nano-particle is nano oxidized titanium particle, partial size 30nm；First monomer is adjacent phenyl benzene
Ethoxy acrylate；Second comonomer is DR-U96 (Changxing Chemical Manufacture, F=10)；Light-cured resin is polyurethane acroleic acid
Resin；Initiator is 2,4,6- trimethylbenzoy-dipheny phosphine oxide (TPO) and 2- hydroxy-methyl phenyl-propane -1- ketone
(1173) combination, wherein 2,4,6- trimethylbenzoy-dipheny phosphine oxides (TPO) and 2- hydroxy-methyl phenyl-propane-
Each 2.5 parts by weight of 1- ketone (1173)；Auxiliary agent is WE-D7700.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PET material, with a thickness of
75μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 50 μm, and corner angle are
100 °, prism bar is contour linear type.
Embodiment 8
Composition as described in Example 1, the raw material of the composition include following composition: inorganic nano-particle: 15 weights
Measure part；First monomer, 35 parts by weight；30 parts by weight of second comonomer；17 parts by weight of light-cured resin；3 parts by weight of photoinitiator；It helps
0.5 parts by weight of agent；Wherein inorganic nano-particle is nano zirconia particles, partial size 40nm；First monomer is adjacent phenyl benzene
Ethoxy acrylate；Second comonomer is DR-U96 (Changxing Chemical Manufacture, F=10)；Light-cured resin is polyurethane acroleic acid
Resin；Initiator is 2,4,6- trimethylbenzoy-dipheny phosphine oxide (TPO)；Auxiliary agent is WE-D7700.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PET material, with a thickness of
100μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 50 μm, and corner angle are
100 °, prism bar is contour linear type.
Embodiment 9
Composition as described in Example 1, the raw material of the composition include following composition: inorganic nano-particle: 22 weights
Measure part；First monomer, 50 parts by weight；8 parts by weight of second comonomer；16 parts by weight of light-cured resin；4 parts by weight of photoinitiator；Auxiliary agent
0.7 parts by weight；Wherein inorganic nano-particle is nano silicon carbide boron particles, partial size 45nm；First monomer is 10 (ethyoxyls)
Bisphenol fluorene diacrylate；Second comonomer is GU6600Y (state refine)；Light-cured resin is epoxy acrylic resin；Cause
Agent is 2- methyl-1-(4- methyl mercapto phenyl)-2- morpholinyl-1- acetone (907)；Auxiliary agent is WE-D5450.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PA material, with a thickness of
250μm；The micro-structure of the brightness enhancement layer is microlens structure, and the microlens structure is hemispherical dome structure, the hemispherical junction
The diameter of structure is 90 μm, highly 1/3 for diameter, is highly 30 μm.
Embodiment 10
Composition as described in Example 1, the raw material of the composition include following composition: inorganic nano-particle: 20 weights
Measure part；First monomer, 23 parts by weight；35 parts by weight of second comonomer；17 parts by weight of light-cured resin；5 parts by weight of photoinitiator；It helps
0.4 parts by weight of agent；Wherein inorganic nano-particle is nano silicon nitride titanium particle, partial size 50nm；First monomer is 2 (ethyoxyls)
Phenyl benzene ethoxy acrylate；Second comonomer is DR-E530 (Changxing chemical production, F=8)；Light-cured resin is polyester third
Olefin(e) acid resin；Initiator is 2- hydroxy-methyl phenyl-propane -1- ketone (1173)；Auxiliary agent is BYK-UV3500.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PC material, with a thickness of 50
μm；The micro-structure of the brightness enhancement layer is microlens structure, and the microlens structure is hemispherical dome structure, the hemispherical dome structure
Diameter is 90 μm, highly 3/5 for diameter, is highly 54 μm.
Embodiment 11
Composition as described in Example 1, the raw material of the composition include following composition: inorganic nano-particle: 16 weights
Measure part；First monomer, 45 parts by weight；15 parts by weight of second comonomer；22 parts by weight of light-cured resin；2 parts by weight of photoinitiator；It helps
0.6 parts by weight of agent；Wherein inorganic nano-particle is nano oxidized titanium particle, partial size 45nm；First monomer is 2 (ethyoxyls)
Bisphenol fluorene diacrylate；Second comonomer is double pentaerythritol methacrylate (F=6)；Light-cured resin is polyurethane propylene
Acid resin；Initiator is 2- hydroxy-methyl phenyl-propane -1- ketone (1173)；Auxiliary agent is BYK-UV3500.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PET material, with a thickness of
100μm；The micro-structure of the brightness enhancement layer is microlens structure, and the microlens structure is hemispherical dome structure, the hemispherical junction
The diameter of structure is 80 μm, highly 1/2 for diameter, is highly 40 μm.
Embodiment 12
Composition as described in Example 1, the raw material of the composition include following composition: inorganic nano-particle: 13 weights
Measure part；First monomer, 48 parts by weight；25 parts by weight of second comonomer；8 parts by weight of light-cured resin；6 parts by weight of photoinitiator；Auxiliary agent
0.8 parts by weight；Wherein inorganic nano-particle is nano montmorillonite particle, partial size 70nm；First monomer is m-phenoxy benzene
Methacrylate ester；Second comonomer is pentaerythritol triacrylate；Light-cured resin is epoxy acrylic resin；Initiator is
1- hydroxy-cyclohexyl phenyl ketone (184)；Auxiliary agent is BYK-333.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PC material, with a thickness of
150μm；The micro-structure of the brightness enhancement layer is microlens structure, and the microlens structure is hemispherical dome structure, the hemispherical junction
The diameter of structure is 10 μm, highly 1/5 for diameter, is highly 2 μm.
Embodiment 13
Composition as described in Example 1, the raw material of the composition include following composition: inorganic nano-particle: 36 weights
Measure part；First monomer, 12 parts by weight；9 parts by weight of second comonomer；34 parts by weight of light-cured resin；9 parts by weight of photoinitiator；Auxiliary agent
1 parts by weight；Wherein inorganic nano-particle is nano silicon nitride aluminum particulate, partial size 28nm；First monomer is 8 (ethyoxyl) bis-phenols
Fluorenes diacrylate；Second comonomer is GU7200Z (state refine)；Light-cured resin is polyurethane acrylic resin；Initiator
For benzoin dimethylether (651)；Auxiliary agent is BYK-3535.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PET material, with a thickness of
188μm；The micro-structure of the brightness enhancement layer is microlens structure, and the microlens structure is class hemispherical dome structure, the class hemisphere
200 μm of the diameter of shape structure, highly 1/4 for diameter are highly 50 μm.
Embodiment 14
Composition as described in Example 1, the raw material of the composition include following composition: inorganic nano-particle: 8 weight
Part；First monomer, 42 parts by weight；36 parts by weight of second comonomer；11 parts by weight of light-cured resin；3 parts by weight of photoinitiator；Auxiliary agent
0.6 parts by weight；Wherein the first monomer is adjacent phenyl benzene ethoxy acrylate and 10 (ethyoxyl) bisphenol fluorene diacrylates
Combination, wherein inorganic nano-particle is nano vanadium carbide particle, partial size 60nm；Adjacent 20 weight of phenyl benzene ethoxy acrylate
Measure part, 10 (ethyoxyl) bisphenol fluorene diacrylate, 22 parts by weight；Second comonomer is GU6300Y (state refine)；Photocuring tree
Rouge is polyoxyalkylene acrylate resin；Initiator is 2- methyl-1-(4- methyl mercapto phenyl)-2- morpholinyl-1- acetone (907)；Auxiliary agent
For BYK-3570.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PC material, with a thickness of 75
μm；The micro-structure of the brightness enhancement layer is microlens structure, and the microlens structure is class hemispherical dome structure, the class hemispherical junction
150 μm of the diameter of structure, highly 2/3 for diameter are highly 100 μm.
Comparative example 1
Composition as described in Example 1, the raw material of the composition include following composition: inorganic nano-particle: 0 weight
Part；First monomer, 68 parts by weight；1 parts by weight of second comonomer；24 parts by weight of light-cured resin；7 parts by weight of photoinitiator；Auxiliary agent
0.3 parts by weight；First monomer is 2 (ethyoxyl) bisphenol a diacrylates；Second comonomer is UT53956 (moistening chemical industry difficult to understand)；Light is solid
Change resin is polyester acrylate resin；Initiator is 2- hydroxy-methyl phenyl-propane -1- ketone (1173)；Auxiliary agent is WE-D7500.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PC material, with a thickness of 75
μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 30 μm, and corner angle are 80 °,
Prism bar is contour linear type.
The composition that the comparative example provides is free of inorganic nano-particle.
Comparative example 2
Composition as described in Example 1, the raw material of the composition include following composition: inorganic nano-particle: 15 weights
Measure part；First monomer, 10 parts by weight；55 parts by weight of second comonomer；22 parts by weight of light-cured resin；3 parts by weight of photoinitiator；It helps
0.4 parts by weight of agent；Wherein inorganic nano-particle is nano silicon carbide titanium particle, partial size 25nm；First monomer is 10 (ethoxies
Base) bisphenol-A two (methyl) acrylate；Second comonomer is 3 (ethyoxyl) trimethylol-propane trimethacrylates；Photocuring
Resin is polyurethane acrylic resin；Initiator is 2- hydroxy-methyl phenyl-propane -1- ketone (1173)；Auxiliary agent is BYK-
UV3500。
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PET material, with a thickness of
100μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 50 μm, and corner angle are
100 °, prism bar is wobble structure.
Comparative example 3
Composition as described in Example 1, the raw material of the composition include following composition: inorganic nano-particle: 50 weights
Measure part；First monomer, 34.5 parts by weight；10 parts by weight of second comonomer；5 parts by weight of light-cured resin；0.5 parts by weight of photoinitiator；
0.4 parts by weight of auxiliary agent；Wherein inorganic nano-particle is nano silicon nitride titanium particle, partial size 25nm；First monomer is 2 (ethoxies
Base) phenyl benzene ethoxy acrylate；Second comonomer is DR-U96 (Changxing chemical industry)；Light-cured resin is polyoxyalkylene acrylate tree
Rouge；Initiator is 2- methyl-1-(4- methyl mercapto phenyl)-2- morpholinyl-1- acetone (907)；Auxiliary agent is BYK-UV3500.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PC material, with a thickness of 50
μm；The micro-structure of the brightness enhancement layer is microlens structure, and the microlens structure is class hemispherical dome structure, the class hemispherical junction
100 μm of the diameter of structure, highly 4/5 for diameter are highly 80 μm.
1 embodiment of the present invention of table and the comparison of comparative example resulting composition and its optical performance test of the brightness enhancement film of preparation
The test result of the embodiment 1-14 and comparative example 1-3 shown in the table 1 it can be concluded that, composition provided by the invention
Refractive index with higher, optical brightening membrane prepared therefrom show preferable physical property and optical property.The present invention mentions
The brightness enhancement film of confession has preferable hardness and higher translucency, has preferable brightness effects and excellent anti-ball falling impact
Energy.The present invention comes the refractive index of regulatory composition and the blast of preparation by adjusting the ratio of each component in blast layer composition
The hardness of layer, so that the brightness enhancement film of high brightness high abrasion and highly resistance ball falling impact performance be made.Wherein, second comonomer in composition
Ratio it is bigger, degree of functionality is higher, and the crosslinking of the brightness enhancement layer of preparation is finer and close, and hardness and anti-ball falling impact performance are higher；It is inorganic
The additive amount of nanoparticle is higher, and the refractive index of composition obtained is higher, and the hardness of brightness enhancement film prepared therefrom and brightness are got over
It is high.
Wherein, the composition refractive index with higher of the embodiment of the present invention 4-8 and 10-11 preparation, by its composition
The brightness enhancement film of preparation is while having both higher adhesive force hardness and light transmittance, brightness also with higher, has preferable
Anti- ball falling impact performance.The refractive index of the composition of preparation is at least 1.600, and the light transmittance of the brightness enhancement film of preparation is at least
94.46%, adhesive force is at least 5B, and hardness is at least 2H, and brightness is at least 7012cd/m2, anti-ball falling impact performance grade to
It is less 2 grades.Particularly, the refractive index for the composition that prepared by embodiment 6,7 and 8 is at least 1.610, the light transmission of the brightness enhancement film of preparation
Rate is at least 95.15%, and hardness is at least 3H, and brightness is at least 7411cd/m2, at least 1 grade of anti-ball falling impact performance grading.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
The equivalent changes and modifications that content is done according to the present invention are encompassed by the scope of the patents of the invention.
Claims (10)
1. a kind of composition, which is characterized in that the composition includes inorganic nano-particle, the first monomer, second comonomer, and light is solid
Change resin and photoinitiator.
2. composition according to claim 1, which is characterized in that the raw material of the composition includes following compositions: inorganic
Nanoparticle 8-45 parts by weight；First monomer: 10-50 parts by weight；Second comonomer: 5-40 parts by weight；Light-cured resin: 8-45 weight
Measure part；Photoinitiator: 1-10 parts by weight；Auxiliary agent: 0.1-1 parts by weight；Wherein inorganic nano-particle, the first monomer, second comonomer,
The total weight parts of light-cured resin and photoinitiator are 100 parts.
3. composition according to claim 1, which is characterized in that the inorganic nano-particle is selected from inorganic nanometer oxide
Particle, inorganic nano carbide particle, one of inorganic nano nitride particles and inorganic nano mineral particle or at least
Two kinds of combination.
4. composition according to claim 1 or 2, which is characterized in that the partial size of the inorganic nano-particle is 10-
80nm。
5. composition according to claim 1, which is characterized in that first monomer is single official's acrylic monomers (F=1)
Or two official's acrylic monomers (F=2), the second comonomer are more official's acrylic monomers (F >=3).
6. composition according to claim 1, which is characterized in that first monomer is single official's acrylic monomers (F=
1), the second comonomer is six official's acrylate (F=6), eight official's acrylate (F=8), nine official's acrylate (F=9) or ten
Official's acrylate (F=10).
7. composition according to claim 1 or 2, which is characterized in that the refractive index of the composition is 1.55-1.64.
8. composition according to claim 2, which is characterized in that the raw material of the composition includes following compositions: inorganic
Nanoparticle 12-40 parts by weight；First monomer: 15-45 parts by weight；Second comonomer: 10-35 parts by weight；Light-cured resin: 14-
40 parts by weight；Photoinitiator: 2-7 parts by weight；Auxiliary agent: 0.3-0.6 parts by weight；Wherein inorganic nano-particle, the first monomer, second
The total weight parts of monomer, light-cured resin and photoinitiator are 100 parts.
9. a kind of brightness enhancement film, which is characterized in that the brightness enhancement film includes the brightness enhancement layer with micro-structure, and the brightness enhancement layer is by weighing
Benefit is formed after requiring composition described in one of 1-8 to solidify, and the micro-structure is micro-prism structure or microlens structure.
10. a kind of application of brightness enhancement film according to claim 9, which is characterized in that the brightness enhancement film is applied to liquid crystal
In the backlight module shown.
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| CN111040619A (en) * | 2019-12-31 | 2020-04-21 | 凯鑫森(上海)功能性薄膜产业有限公司 | Water-resistant UV (ultraviolet) curing resin composition as well as preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104508023A (en) * | 2012-05-31 | 2015-04-08 | 株式会社Lg化学 | Method for manufacturing hard coating film |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104508023A (en) * | 2012-05-31 | 2015-04-08 | 株式会社Lg化学 | Method for manufacturing hard coating film |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111040619A (en) * | 2019-12-31 | 2020-04-21 | 凯鑫森(上海)功能性薄膜产业有限公司 | Water-resistant UV (ultraviolet) curing resin composition as well as preparation method and application thereof |
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