CN110079208A - A kind of composition and a kind of brightness enhancement film and its application - Google Patents
A kind of composition and a kind of brightness enhancement film and its application Download PDFInfo
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- CN110079208A CN110079208A CN201910284649.3A CN201910284649A CN110079208A CN 110079208 A CN110079208 A CN 110079208A CN 201910284649 A CN201910284649 A CN 201910284649A CN 110079208 A CN110079208 A CN 110079208A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1606—Antifouling paints; Underwater paints characterised by the anti-fouling agent
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
- C08J2475/14—Polyurethanes having carbon-to-carbon unsaturated bonds
Abstract
The present invention relates to function film fields, more particularly, to a kind of composition and a kind of brightness enhancement film and its application.In order to solve the problems, such as that existing brightness enhancement film is cutting, carrying, is being easy in assembling process dirty, the present invention provides a kind of composition and a kind of brightness enhancement film and its application.Composition provided by the invention includes the first monomer, second comonomer, acrylate oligomer, photoinitiator and antifouling auxiliary agent.Brightness enhancement film provided by the invention includes brightness enhancement layer, substrate layer and back coating.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 it is excellent resist dirty property, but also have both scraping and wiping resistance performance.
Description
Technical field
The present invention relates to function film fields, more particularly, to a kind of composition and a kind of brightness enhancement film and its application.
Background technique
Liquid crystal display LCD (Liquid Crystal Display) is the current most common display technology.But LCD
For the display equipment of non-luminescent property, need to provide highlighted, uniform light source by backlight module BLU (Back Light Unit)
It can be only achieved display effect.Traditional backlight module is mainly opened by lower diffusion barrier, lower brightness enhancement film, upper brightness enhancement film, upper diffusion barrier four
Diaphragm assembles.Wherein, the light-emitting surface of brightness enhancement film (BEF, Brightness Enhancement Film) has microprism
(Prism) incident light can be restrained, play blast, promote the positive brightness of LCD picture by structure.
Therefore, brightness enhancement film is essential part in liquid crystal display.
However in actual use, the micro-prism structure of brightness enhancement layer is exposed outside, usually because cutting, carrying, group
Attaching touch pollutant, such as gloves, glue stick, dust sticky paper etc. and cause dirty.These dirty prism structure strong influences
The focusing light effect of brightness enhancement film.
Before this, has the formula that multinomial patent disclosure illustrates antifouling composition.Such as publication No. is
CN103509458A (date of publication is on January 15th, 2014), in entitled " ultraviolet photo-curing PVC resists dirty paint "
A kind of ultraviolet photo-curing is disclosed in state's patent application resists dirty paint formulation: aliphatic polyurethane diacrylate rouge 20%-
25%, aliphatic polyurethane tetrapropylene acid rouge 20%-23%, TMPTA 8%-10%, HEMA 8%-15%, acrylic acid tetrafluoro
Third rouge 10%-15%, TPGDA10%-15% and levelling agent 0.3%-0.5%.Publication No. is CN 103474495A (date of publication
For on December 25th, 2013), entitled " a kind of's Anti-dirt dustproof transparence-enhancisolar solar photovoltaic module and preparation method thereof "
A kind of Anti-dirt dustproof transparence-enhancisolar solar photovoltaic module is disclosed in Chinese patent application, it is characterized in that viscous on coated glass surface
Close fluoroplast film.Publication No. is CN 107987717A (date of publication is on May 04th, 2018), entitled " a kind of hard
The addition 0.1%~0.5% in hardened layer coating fluid is mentioned in a kind of Chinese patent application of change layer coating fluid and cured film "
Fluorine element additive is dirty to prevent from referring to.The surface tension of composition coating can be significantly reduced in these fluorine resins, auxiliary agent, reaches anti-
It is dirty, anti-to refer to dirty effect, but these formulas contain fluorine element, do not meet optical film industry halogen control standard, therefore nothing
Method uses in brightness enhancement film.
How to solve the problems, such as that brightness enhancement film is cutting, carrying, is being easy dirty one as the puzzlement industry in assembling process
A technical problem.
Summary of the invention
In order to solve the problems, such as that it is dirty that existing brightness enhancement film is easy, the present invention provide a kind of composition and a kind of brightness enhancement film and its
Using.Composition provided by the invention with excellent resists dirty performance after solidifying.Brightness enhancement film prepared by the present invention not only has
Higher brightness and it is excellent resist dirty property, while having both scraping and wiping resistance performance.Composition provided by the invention and brightness enhancement film solve
Existing brightness enhancement film is cutting, is carrying, is easy dirty problem in assembling process.
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 the first monomer, second comonomer, acrylate oligomer,
Photoinitiator and antifouling auxiliary agent.
Further, the composition includes following compositions: the first monomer: 10-40 parts by weight；Second comonomer: 20-50 weight
Measure part；Acrylate oligomer: 30-60 parts by weight；Photoinitiator: 1-10 parts by weight；Antifouling auxiliary agent: 1-6 parts by weight.Further
, the total weight number of first monomer, second comonomer, acrylate oligomer, photoinitiator and antifouling auxiliary agent is 100
Part.
Further, the raw material of the composition includes following compositions: the first monomer: 20-30 parts by weight；Second comonomer:
30-40 parts by weight；Acrylate oligomer: 30-45 parts by weight；Photoinitiator: 2-7 parts by weight；Antifouling auxiliary agent: 3-5 parts by weight.
Further, the raw material of the composition includes following compositions: the first monomer: 20 parts by weight；Second comonomer: 30 weights
Measure part；Acrylate oligomer: 45 parts by weight；Photoinitiator: 2 parts by weight；Antifouling auxiliary agent: 3 parts by weight.
Further, the refractive index of the composition is 1.530-1.550.
Further, the antifouling auxiliary agent is selected from hydroxyl polysiloxane analog assistant, and the auxiliary agent is mentioned by German Bi Ke (BYK)
For model BYK-SILCLEAN 3700.
Further, first monomer is selected from single official's acrylic monomers (F=1) or two official's acrylic monomers (F=2),
Or in which at least two combination.
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 third
Olefin(e) acid benzyl ester (such as Miramer M1182 of U.S. source chemical industry), 2- phenoxyethyl acrylate (such as U.S. source chemical industry
Miramer M140), poly(ethylene glycol) phenyl ether acrylate (such as Miramer M144 of U.S. source chemical industry), acrylic acid tetrahydro
In furfuryl group ester (such as Miramer M150 of U.S. source chemical industry) or ten ester of acrylic acid (such as Miramer M130 of U.S. source chemical industry)
One kind or at least two combination.
Further, when first monomer is list official acrylic monomers (F=1), preferably 2- Phenoxyethyl third
Olefin(e) acid ester (Miramer M140), poly(ethylene glycol) phenyl ether acrylate (Miramer M144) or ten ester of acrylic acid
One of (Miramer M130) or at least two combination.
Further, when first monomer is two official's acrylic monomers (F=2), first monomer is selected from 1,
6- hexanediyl ester (such as Miramer M200 of U.S. source chemical industry), tri (propylene glycol) diacrylate (such as beauty
The Miramer M220 of source chemical industry), triethylene glycol diacrylate (such as Miramer M232 of U.S. source chemical industry), tetraethylene glycol two
Acrylate (such as Miramer M270 of U.S. source chemical industry), polyethyleneglycol diacrylate (PEG400DA, such as U.S. source chemical industry
Miramer M280) one of or at least two combination.
Further, when first monomer is two official's acrylic monomers (F=2), first monomer is preferably
1,6- hexanediyl ester (Miramer M200), tri (propylene glycol) diacrylate (Miramer M220) or poly- second
One of omega-diol diacrylate (PEG400DA, Miramer M280) or at least two combination.
Further, the second comonomer is selected from more official's acrylic monomers (F >=3).For example, F=3-15.Such as: F=3,
F=4, F=5, F=6, F=9 or F=10.
Further, when the second comonomer is three official's acrylate (F=3), the second comonomer is selected from trihydroxy methyl
Propane three (methyl) acrylate (such as Miramer M300 of U.S. source chemical industry), pentaerythritol triacrylate (such as U.S. source
The Miramer M340 of chemical industry), isocyanuric acid three (2- acrylyl oxy-ethyl) ester (such as Miramer M370 of U.S. source chemical industry),
3 (ethyoxyl) trimethylolpropane tris (methyl) acrylate (such as Miramer M3130 of U.S. source chemical industry) or 9 (ethoxies
Base) one of trimethylolpropane tris (methyl) acrylate (such as Miramer M3190 of U.S. source chemical industry) or at least two
The combination of kind.
Further, when the second comonomer is four official's acrylate (F=4), the second comonomer is selected from pentaerythrite
Tetraacrylate (such as Miramer M420 of U.S. source chemical industry), 4 (ethyoxyl) pentaerythritol tetraacrylates (such as U.S. source
The Miramer M4004 of work) or two (trimethylolpropane) tetraacrylates (such as Miramer M410 of U.S. source chemical industry) in
One or two kinds of combinations.
Further, when the second comonomer is face acrylate (F=5), the second comonomer is selected from double Ji Wusi
Five acrylate of alcohol (such as Miramer M510 of U.S. source chemical industry).
Further, when the second comonomer is six official's acrylate (F=6), the second comonomer is selected from state and refines
GU6100L, GU6200Z, GU6300Y or GU6600Y of Co., Ltd, or moisten chemical industry difficult to understand UT3009, R-7496 or
The combination of one of UT58938 or at least two.
Further, when the second comonomer is nine official's acrylate (F=9), the second comonomer is selected from state and refines
The FSP73298 of GU7200Z or the profit chemical industry difficult to understand of Co., Ltd or two kinds of combination.
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, first monomer is selected from 2- phenoxyethyl acrylate (such as Miramer M140), gathers
(ethylene glycol) phenyl ether acrylate (such as Miramer M144), ten ester of acrylic acid (such as Miramer M130), 1,6-
Omega-diol diacrylate (such as Miramer M200), tri (propylene glycol) diacrylate (such as Miramer M220) and poly-
At least two combination in glycol diacrylate (PEG400DA, such as Miramer M280).The second comonomer choosing
From isocyanuric acid three (2- acrylyl oxy-ethyl) ester (such as Miramer M370), two (trimethylolpropane) tetraacrylates
(such as Miramer M410), six official's acrylate (such as GU6200Z, GU6300Y or R-7496), nine official's acrylate (examples
Such as GU7200Z), at least two combination in He Shiguan acrylate (such as GU7400Z or UT53956).Aforementioned techniques side
Case includes embodiment 4-5 and embodiment 10.
Further, first monomer is selected from the combination of two kinds of single official's acrylate, or single official's acrylate and two officials
The combination of acrylate.The second comonomer is selected from the combination of three official's acrylate, six official's acrylate and ten official's acrylate；
The combination of four official's acrylate, six official's acrylate and ten official's acrylate；Or six official's acrylate and nine official's acrylate
Combination.Preceding solution includes embodiment 4-5 and embodiment 10.
Further, first monomer is selected from the combination of single official's acrylate and two official's acrylate, single official's acrylic acid
The weight ratio of ester and two official's acrylate is 1:1.Further, first monomer be single official ten ester of acrylic acid (such as
Miramer M130), two propylene of 1,6- hexylene glycol of 2- phenoxyethyl acrylate (such as Miramer M140) He Erguan
The mixture of acid esters (such as Miramer M200), weight ratio 1:1:2.Alternatively, first monomer is the propylene of single official
Two contractings three of sour ten esters (such as Miramer M130), 2- phenoxyethyl acrylate (such as Miramer M140) He Erguan
The mixing of propylene glycol diacrylate (such as Miramer M220), polyethyleneglycol diacrylate (such as Miramer M280)
Object, four weight ratio are 1:1:1:1.The second comonomer is selected from three official's acrylate, six official's acrylate and ten official's propylene
The combination of acid esters, the weight ratio of three are 1:2:1；Or the second comonomer is selected from four official's acrylate, six official's acrylic acid
The combination of ester and ten official's acrylate；The weight ratio of three is 1:2:1.Further, the second comonomer is the different of three officials
Cyanurate three (2- acrylyl oxy-ethyl) ester (such as Miramer M370), six official's acrylate (such as GU6300Y) He Shiguan
The mixture of acrylate (such as GU7400Z), three's weight ratio are 1:2:1.Alternatively, second comonomer is the two (three of four officials
Hydroxymethyl-propane) tetraacrylate (such as Miramer M410), six official's acrylate (such as GU6200Z) He Shiguan acrylic acid
The mixture of ester (such as UT53956), the weight ratio of three are 1:2:1.Preceding solution includes embodiment 4-5.
Further, first monomer is selected from the combination of two kinds of single official's acrylate, the weight of two kinds of single official's acrylate
Amount ratio is 2:1.Further, first monomer is 2- phenoxyethyl acrylate (such as Miramer M140), and
The combination of poly(ethylene glycol) phenyl ether acrylate (such as Miramer M144), the weight ratio of the two are 2:1.Described second
Monomer is selected from the combination of six official's acrylate and nine official's acrylate, and the weight ratio of the two is 1:1.Further, second is single
Body is the mixture of six official's acrylate (such as R-7496) He Jiuguan acrylate (such as GU7200Z), the two weight ratio
For 1:1.Preceding solution includes embodiment 10.
Further, the acrylate oligomer is selected from polyurethane acrylic resin, polyoxyalkylene acrylate resin or epoxy
One of acrylic resin or at least two combination.
Further, contain two or more ethylene types not in the molecular structure of the acrylate oligomer
It is saturated double bond.
Further, the acrylate oligomer is preferably polyurethane acrylic resin.
Further, the photoinitiator is preferably one or both of Irgacure 184 or Irgacure 754
Combination.
The present invention also provides a kind of brightness enhancement film, the brightness enhancement film includes brightness enhancement layer, substrate layer and back coating.The blast
Layer is the brightness enhancement layer with micro-structure.The brightness enhancement layer is attached to the side of substrate layer.
Further, the brightness enhancement film successively includes brightness enhancement layer, substrate layer and back coating.
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 includes following components: the first monomer: 10-40 parts by weight；Second is single
Body: 20-50 parts by weight；Acrylate oligomer: 30-60 parts by weight；Photoinitiator: 1-10 parts by weight；Antifouling auxiliary agent: 1-6 weight
Measure part.
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.The micro-prism structure is
Prism bar, the cross section of the prism bar are triangle.Prism bar is laid in substrate layer surface.The height of the micro-prism structure
For the height of prism bar.
Further, the prism bar height of the micro-prism structure is 10-35 μm, and corner angle are 90 °.
Further, the prism bar height of the micro-prism structure of the prism layer is 25 μm, and corner angle are 90 °.The prism
The peak point spacing of the two neighboring prism structure (i.e. two neighboring prism bar) of layer is 50 μm.
Further, the brightness enhancement film further includes back coating, and the back coating is coated on the other side of substrate layer.The back
Coating is made of diffusion particle and resin material, and diffusion particle is bonded in the surface of substrate layer by resin material.The diffusion
The material of particle is polybutyl methacrylate, and the partial size of the diffusion particle is polydispersion, and numerical value is between 2-30 μm.
Further, the weight ratio of the diffusion particle and resin material is 1:200.
Further, the material of the substrate layer is selected from polyethylene terephthalate (PET).
Further, the substrate layer with a thickness of 50-300 μm.
Further, the thickness of the substrate layer is preferably 188-250 μm.
Further, the preparation method of the brightness enhancement film includes the following steps:
(1) diffusion particle and resin material are uniformly mixed, is then coated on the lower surface of substrate layer, in an oven always
Change, it is followed by aging, obtain back coating；
(2) composition is coated on to the upper surface of substrate layer, is rolled through mold and ultraviolet radiation-curable, formation has micro-
The brightness enhancement layer of structure, so that optical brightening membrane be made.
Pass through the brightness enhancement film of the available excellent combination property of ratio of each component in the regulation present composition.Combination
The first monomer in object primarily serves evenly dispersed effect, by adjusting the parts by weight of the first monomer come regulation composition
Viscosity enables other components uniform dissolution, dispersion.Second comonomer in composition is more official's monomers, in photocuring reaction process
In play the role of improving crosslink density, make the brightness enhancement layer obtained after solidify that there is fine and close inierpeneirating network structure, with anti-scratch
Wipe performance.Acrylate oligomer in composition provides the good adhesive force effect between substrate layer for coating.Combination
Antifouling auxiliary agent in object is hydroxyl polysiloxane class, can reduce coating surface tension, so that dirt is difficult to adhere to, can make coating
Surface, which has, preferably resists dirty property.It is worth noting that, the addition of antifouling auxiliary agent will affect it is attached between composition and substrate
Put forth effort, while there are saturated concentrations for auxiliary agent addition, it is therefore desirable to select suitable additive amount.
The brightness enhancement layer that composition provided by the invention is formed after solidifying have resists dirty property, while have both scraping and wiping resistance performance and
Strong adhesive force.
Compared with prior art, brightness enhancement film provided by the invention, which significantly improves, itself resists dirty property, while having both height
Brightness and scraping and wiping resistance performance, and do not need additionally to coat protective film in brightness enhancing layer surface, especially suitable for field of liquid crystal display,
Particularly suitable for using in backlight module and lamp device, but it is not limited to product listed above.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of 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, brightness enhancement film prepared by the present invention includes brightness enhancement layer 10, transparent substrate layer 30, back coating 20.
The present invention relates to the evaluations to composition and brightness enhancement film optical property is prepared.Required material and facility is existing
There is material and facility.
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) diffusion particle and resin material are uniformly mixed, is then coated on the lower surface of substrate layer, in an oven always
Change, it is followed by aging, obtain back coating；
(2) composition is coated on to the upper surface of substrate layer, is rolled through mold and ultraviolet radiation-curable, formation has micro-
The brightness enhancement layer of structure, so that optical brightening membrane be made.
Wherein, include: to the performance evaluation of composition
(1) composition drop refraction index test: is tested into its refractive index on Abbe refractometer (WAY-2S)；
(2) water contact angle is tested: according to the standard of GB/T 30693-2014 " measurement of plastic film and water contact angle ",
Test the water contact angle of the plane after composition solidifies.Water contact angle is bigger, and soil resistance is better.
Wherein, include: to the evaluation of the physical property of brightness enhancement film and optical property
(1) brightness enhancement layer hardness test: according to GB/T6739-1996, using the brightness enhancement film of measuring pencil durometer preparation
The hardness of 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.
(2) adhesive force of brightness enhancement layer: according to the standard of GB/T 1720-1979 " paint film adhesion measuring method ", blast is tested
The adhesive force of brightness enhancement layer in film represents wherein 100/100 represents not demoulding, 90/100 and falls off 10%.
(3) luminance test: taking the brightness enhancement film of an A4 size, is put into 27 cun of backlight modules according to test structure, in 23V
Voltage under light, test its brightness with luminance instrument (BM-7).
To guarantee that the brightness of the brightness enhancement layer formed after composition provided by the invention solidifies is comparable, back coating is excluded
Influence, the back coating in following embodiment and comparative example is all made of same recipe.Wherein diffusion particle and weight resin ratio
Example is 1:200, and the material of diffusion particle used is polybutyl methacrylate, and partial size is between 2-30 μm, the thickness of back coating
It is 10 μm.
Embodiment 1
The present invention provides a kind of composition, and the composition includes the first monomer, second comonomer, acrylate oligomer,
Photoinitiator and antifouling auxiliary agent.
The raw material of the composition includes following compositions: the first monomer: 10 parts by weight；Second comonomer: 20 parts by weight；Propylene
Acid esters oligomer: 60 parts by weight；Photoinitiator: 6 parts by weight；Antifouling auxiliary agent: 4 parts by weight；Wherein the first monomer is single official
The mixture of Miramer M150 and M144, weight ratio 1:1；Second comonomer is the Miramer M340 and M3130 of three officials
Mixture, weight ratio 2:1；Acrylate oligomer is polyurethane acrylic resin；Initiator is Irgacure 754；
Antifouling auxiliary agent is BYK-SILCLEAN 3700.
Brightness enhancement film is prepared by combination of the above object, the preparation method of the brightness enhancement film includes the following steps:
(1) diffusion particle and resin material are uniformly mixed, is then coated on the lower surface of substrate layer, in an oven always
Change, it is followed by aging, obtain back coating；
(2) composition is coated on to the upper surface of substrate layer, is rolled through mold and ultraviolet radiation-curable, formation has micro-
The brightness enhancement layer of structure, so that optical brightening membrane be made.
Wherein, substrate layer is PET material, with a thickness of 50 μm；Solidification energy is 300mj/cm2；Micro- knot of the brightness enhancement layer
Structure is micro-prism structure, and the prism bar height of the micro-prism structure is 10 μm, and corner angle are 90 °.
Embodiment 2
Composition as described in Example 1, the raw material of the composition include following composition: 10 parts by weight of the first monomer；
50 parts by weight of second comonomer；30 parts by weight of acrylate oligomer；4 parts by weight of photoinitiator；Antifouling 6 parts by weight of auxiliary agent；Wherein
First monomer is the list Miramer M1182 of official and the Miramer M270 mixture of two officials, weight ratio 1:1；Second is single
Body is the Miramer M300 of three officials and the GU7900Z, weight ratio 1:2 of ten officials；Acrylate oligomer is polyethers propylene
Acid resin；Initiator is Irgacure 184；Antifouling auxiliary agent is BYK-SILCLEAN 3700.
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
300μm；Solidification energy is 600mj/cm2；The micro-structure of the brightness enhancement layer is micro-prism structure, the prism of the micro-prism structure
Item height is 35 μm, and corner angle are 90 °.
Embodiment 3
Composition as described in Example 1, the raw material of the composition include following composition: 40 parts by weight of the first monomer；
20 parts by weight of second comonomer；30 parts by weight of acrylate oligomer；4 parts by weight of photoinitiator；Antifouling 6 parts by weight of auxiliary agent；Wherein
First monomer is the list Miramer M144 of official and the Miramer M220 mixture of two officials, weight ratio 1:1；Second comonomer
For the Miramer M3190 of three officials, the Miramer M4004 of four officials and the DR-U96 mixture of ten officials, weight ratio 1:1:
1；Acrylate oligomer is polyurethane acrylic resin；Initiator is Irgacure 184；Antifouling auxiliary agent is BYK-
SILCLEAN 3700。
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；Solidification energy is 300mj/cm2；The micro-structure of the brightness enhancement layer is micro-prism structure, the prism of the micro-prism structure
Item height is 20 μm, and corner angle are 90 °.
Embodiment 4
Composition as described in Example 1, the raw material of the composition include following composition: 20 parts by weight of the first monomer；
40 parts by weight of second comonomer；30 parts by weight of acrylate oligomer；5 parts by weight of photoinitiator；Antifouling 5 parts by weight of auxiliary agent；Wherein
First monomer is list Miramer M130, the M140 of official and the Miramer M200 mixture of two officials, weight ratio 1:1:2；
GU7400Z mixture of the second comonomer for the Miramer M370, the GU6300Y of six officials and ten officials of three officials, weight ratio 1:
2:1；Acrylate oligomer is polyurethane acrylic resin；Initiator is Irgacure 754；Antifouling auxiliary agent is BYK-
SILCLEAN 3700。
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；Solidification energy is 450mj/cm2；The micro-structure of the brightness enhancement layer is micro-prism structure, the prism of the micro-prism structure
Item height is 25 μm, and corner angle are 90 °.
Embodiment 5
Composition as described in Example 1, the raw material of the composition include following composition: 30 parts by weight of the first monomer；
30 parts by weight of second comonomer；30 parts by weight of acrylate oligomer；7 parts by weight of photoinitiator；Antifouling 3 parts by weight of auxiliary agent；Wherein
First monomer be list Miramer M130, the M140 of official and Miramer M220, the M280 mixture of two officials, weight ratio 1:
1:1:1；Second comonomer is the UT53956 mixture of the Miramer M410, the GU6200Z of six officials and ten officials of four officials, weight ratio
Example is 1:2:1；Acrylate oligomer is polyurethane acrylic resin；Initiator is Irgacure 184；Antifouling auxiliary agent is
BYK-SILCLEAN 3700。
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
250μm；Solidification energy is 450mj/cm2；The micro-structure of the brightness enhancement layer is micro-prism structure, the prism of the micro-prism structure
Item height is 25 μm, and corner angle are 90 °.
Embodiment 6
Composition as described in Example 1, the raw material of the composition include following composition: 20 parts by weight of the first monomer；
29 parts by weight of second comonomer；40 parts by weight of acrylate oligomer；10 parts by weight of photoinitiator；Antifouling 1 parts by weight of auxiliary agent；Wherein
First monomer is the Miramer M140 of single official；Second comonomer is the UT3009 mixing of the Miramer M420 and six officials of four officials
Object, weight ratio 1:1；Acrylate oligomer is epoxy acrylic resin；Initiator is Irgacure 754；Antifouling auxiliary agent
For BYK-SILCLEAN 3700.
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
250μm；Solidification energy is 450mj/cm2；The micro-structure of the brightness enhancement layer is micro-prism structure, the prism of the micro-prism structure
Item height is 25 μm, and corner angle are 90 °.
Embodiment 7
Composition as described in Example 1, the raw material of the composition include following composition: 25 parts by weight of the first monomer；
20 parts by weight of second comonomer；50 parts by weight of acrylate oligomer；1 parts by weight of photoinitiator；Antifouling 4 parts by weight of auxiliary agent；Wherein
First monomer is Miramer M200, the M280 mixture of two officials, weight ratio 1:2；Second comonomer is face
The GU6600Y mixture of MiramerM510 and six officials, weight ratio 2:1；Acrylate oligomer is polyurethane acroleic acid tree
Rouge；Initiator is the mixture of Irgacure 754 and Irgacure 184, weight ratio 2:1；Antifouling auxiliary agent is BYK-
SILCLEAN 3700。
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
250μm；Solidification energy is 450mj/cm2；The micro-structure of the brightness enhancement layer is micro-prism structure, the prism of the micro-prism structure
Item height is 25 μm, and corner angle are 90 °.
Embodiment 8
Composition as described in Example 1, the raw material of the composition include following composition: 20 parts by weight of the first monomer；
30 parts by weight of second comonomer；40 parts by weight of acrylate oligomer；7 parts by weight of photoinitiator；Antifouling 3 parts by weight of auxiliary agent；Wherein
First monomer is the Miramer M130 of single official；Second comonomer is the GU6100L of six officials and the FSP73298 mixture of nine officials, weight
Amount ratio is 1:2；Acrylate oligomer is polyoxyalkylene acrylate resin；Initiator is Irgacure 184；Antifouling auxiliary agent is
BYK-SILCLEAN3700。
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
250μm；Solidification energy is 450mj/cm2；The micro-structure of the brightness enhancement layer is micro-prism structure, the prism of the micro-prism structure
Item height is 25 μm, and corner angle are 90 °.
Embodiment 9
Composition as described in Example 1, the raw material of the composition include following composition: 30 parts by weight of the first monomer；
30 parts by weight of second comonomer；33 parts by weight of acrylate oligomer；2 parts by weight of photoinitiator；Antifouling 5 parts by weight of auxiliary agent；Wherein
First monomer is the Miramer M232 of two officials；Second comonomer is the GU6200Z of six officials；Acrylate oligomer is polyurethane third
Olefin(e) acid resin；Initiator is Irgacure754；Antifouling auxiliary agent is BYK-SILCLEAN 3700.
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
250μm；Solidification energy is 450mj/cm2；The micro-structure of the brightness enhancement layer is micro-prism structure, the prism of the micro-prism structure
Item height is 25 μm, and corner angle are 90 °.
Embodiment 10
Composition as described in Example 1, the raw material of the composition include following composition: 20 parts by weight of the first monomer；
30 parts by weight of second comonomer；45 parts by weight of acrylate oligomer；2 parts by weight of photoinitiator；Antifouling 3 parts by weight of auxiliary agent；Wherein
First monomer is Miramer 140, the M144 mixture of single official, weight ratio 2:1；Second comonomer be six officials R-7496 and
The GU7200Z mixture of nine officials, weight ratio 1:1；Acrylate oligomer is polyurethane acrylic resin；Initiator is
Irgacure 754；Antifouling auxiliary agent is BYK-SILCLEAN 3700.
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
250μm；Solidification energy is 450mj/cm2；The micro-structure of the brightness enhancement layer is micro-prism structure, the prism of the micro-prism structure
Item height is 25 μm, and corner angle are 90 °.
Embodiment 11
Composition as described in Example 1, the raw material of the composition include following composition: 10 parts by weight of the first monomer；
50 parts by weight of second comonomer；30 parts by weight of acrylate oligomer；4 parts by weight of photoinitiator；Antifouling 6 parts by weight of auxiliary agent；Wherein
First monomer is Miramer 220, the M280 mixture of two officials, weight ratio 1:1；Second comonomer be six officials UT5893 and
The 6195-100 mixture of ten officials, weight ratio 1:1；Acrylate oligomer is epoxy acrylic resin；Initiator is
Irgacure 754；Antifouling auxiliary agent is BYK-SILCLEAN 3700.
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
250μm；Solidification energy is 450mj/cm2；The micro-structure of the brightness enhancement layer is micro-prism structure, the prism of the micro-prism structure
Item height is 25 μm, and corner angle are 90 °.
Comparative example 1
Composition as described in Example 1, the raw material of the composition include following composition: 31 parts by weight of the first monomer；
31 parts by weight of second comonomer；31 parts by weight of acrylate oligomer；7 parts by weight of photoinitiator；Without antifouling auxiliary agent.Wherein first is single
Body is list Miramer M130, the M140 of official and Miramer M220, the M280 mixture of two officials, weight ratio 1:1:1:1；
UT53956 mixture of the second comonomer for the Miramer M410, the GU6200Z of six officials and ten officials of four officials, weight ratio 1:
2:1；Acrylate oligomer is polyurethane acrylic resin；Initiator is Irgacure 184.
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
250μm；Solidification energy is 450mj/cm2；The micro-structure of the brightness enhancement layer is micro-prism structure, the prism of the micro-prism structure
Item height is 25 μm, and corner angle are 90 °.
Comparative example 2
Composition as described in Example 1, the raw material of the composition include following composition: 29 parts by weight of the first monomer；
29 parts by weight of second comonomer；29 parts by weight of acrylate oligomer；3 parts by weight of photoinitiator；Antifouling 10 parts by weight of auxiliary agent；Wherein
First monomer be list Miramer M130, the M140 of official and Miramer M220, the M280 mixture of two officials, weight ratio 1:
1:1:1；Second comonomer is the UT53956 mixture of the Miramer M410, the GU6200Z of six officials and ten officials of four officials, weight ratio
Example is 1:2:1；Acrylate oligomer is polyurethane acrylic resin；Initiator is Irgacure 184；Antifouling auxiliary agent is
BYK-SILCLEAN 3700。
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
250μm；Solidification energy is 450mj/cm2；The micro-structure of the brightness enhancement layer is micro-prism structure, the prism of the micro-prism structure
Item height is 25 μm, and corner angle are 90 °.
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 1-11 and comparative example 1-2 shown in the table 1 it can be concluded that, composition provided by the invention
With higher to resist dirty property, optical brightening membrane prepared therefrom shows preferable scraping and wiping resistance performance and optical property.This hair
The bright ratio by adjusting each component in blast layer composition, carrys out the blast of the refractive index, water droplet angle and preparation of regulatory composition
The hardness and adhesive force of layer resist dirty, scratch-resistant brightness enhancement film to be made.Wherein, the ratio of second comonomer is got in composition
Greatly, degree of functionality is higher, and the brightness enhancement layer crosslinking of preparation is finer and close, and hardness level is higher, and scraping and wiping resistance performance is better；Prevent in composition
The ratio of dirty auxiliary agent is bigger, and water droplet angle is bigger, and pollution resistance is also better.Wherein, the group of the preparation of the embodiment of the present invention 4-5 and 10
Object water droplet angle with higher is closed, by the brightness enhancement film of its composition preparation while having both higher hardness and adhesive force, also
Pollution resistance with higher.The refractive index of the composition of preparation is at least 1.531, and water droplet angle is at least 90.1 °, brightness enhancement layer hardness
At least H, adhesive force 100/100, brightness enhancement film brightness are at least 3316cd/m2.Particularly, the brightness enhancement film that embodiment 10 provides
Comprehensive performance it is best.
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 the first monomer, second comonomer, acrylate oligomer, light
Initiator and antifouling auxiliary agent.
2. composition according to claim 1, which is characterized in that the composition includes following compositions: the first monomer:
10-40 parts by weight；Second comonomer: 20-50 parts by weight；Acrylate oligomer: 30-60 parts by weight；Photoinitiator: 1-10 weight
Part；Antifouling auxiliary agent: 1-6 parts by weight；First monomer, second comonomer, acrylate oligomer, photoinitiator and antifouling auxiliary agent
Total weight number be 100 parts.
3. composition according to claim 1, which is characterized in that first monomer is selected from single official's acrylic monomers (F=
1) or two official's acrylic monomers (F=2) or in which at least two combination；The second comonomer is selected from more official's acrylic monomers
(F≥3)。
4. composition according to claim 1 or 2, which is characterized in that the refractive index of the composition is 1.530-
1.550。
5. composition according to claim 1 or 2, which is characterized in that the antifouling auxiliary agent is selected from hydroxyl polysiloxane class
Auxiliary agent.
6. composition according to claim 2, which is characterized in that the composition includes following compositions: the first monomer:
20-30 parts by weight；Second comonomer: 30-40 parts by weight；Acrylate oligomer: 30-45 parts by weight；Photoinitiator: 2-7 weight
Part；Antifouling auxiliary agent: 3-5 parts by weight.
7. a kind of brightness enhancement film, which is characterized in that the brightness enhancement film includes brightness enhancement layer, substrate layer, back coating, the brightness enhancement layer by
It is formed after described in any item composition solidifications among claim 1-6.
8. brightness enhancement film according to claim 7, spy is being that the brightness enhancement layer is made of micro-prism structure, described micro-
Prism structure height is 10-35 μm.
9. brightness enhancement film according to claim 7, which is characterized in that the back coating is by diffusion particle and resin material group
At.
10. a kind of application according to described in any item brightness enhancement films among claim 7-9, which is characterized in that the brightness enhancement film
Applied in the backlight module of liquid crystal display.
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Cited By (4)
| 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 |
| CN112680093A (en) * | 2020-12-25 | 2021-04-20 | 上海绘兰材料科技有限公司 | Solvent-free type photocuring resin composition and preparation method and application thereof |
| CN113900170B (en) * | 2021-10-13 | 2023-09-19 | 安徽晟华光学科技有限公司 | High-brightness adsorption-resistant scratch-resistant prism film and preparation method thereof |
| CN117363203A (en) * | 2023-11-08 | 2024-01-09 | 宁波激智科技股份有限公司 | GO-POSS modified wear-resistant antistatic back coating composition and brightening film |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112680093A (en) * | 2020-12-25 | 2021-04-20 | 上海绘兰材料科技有限公司 | Solvent-free type photocuring resin composition and preparation method and application thereof |
| CN113900170B (en) * | 2021-10-13 | 2023-09-19 | 安徽晟华光学科技有限公司 | High-brightness adsorption-resistant scratch-resistant prism film and preparation method thereof |
| CN117363203A (en) * | 2023-11-08 | 2024-01-09 | 宁波激智科技股份有限公司 | GO-POSS modified wear-resistant antistatic back coating composition and brightening film |
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