CN113064226B - Flexible antistatic antireflection optical film, antistatic antireflection coating liquid and preparation method - Google Patents
Flexible antistatic antireflection optical film, antistatic antireflection coating liquid and preparation method Download PDFInfo
- Publication number
- CN113064226B CN113064226B CN202110480817.3A CN202110480817A CN113064226B CN 113064226 B CN113064226 B CN 113064226B CN 202110480817 A CN202110480817 A CN 202110480817A CN 113064226 B CN113064226 B CN 113064226B
- Authority
- CN
- China
- Prior art keywords
- antistatic
- resin
- functionality
- solvent
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/16—Optical coatings produced by application to, or surface treatment of, optical elements having an anti-static effect, e.g. electrically conducting coatings
-
- 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
- C09D5/24—Electrically-conducting paints
-
- 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
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/111—Anti-reflection coatings using layers comprising organic materials
-
- 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
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
-
- 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
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/18—Coatings for keeping optical surfaces clean, e.g. hydrophobic or photo-catalytic films
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Surface Treatment Of Optical Elements (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a flexible anti-static anti-reflection optical film, anti-static anti-reflection coating liquid and a preparation method thereof. The anti-static anti-reflection coating liquid for coating is mainly composed of UV curing resin, hollow organosilicon nano particles, an anti-static agent, a solvent, a wetting leveling agent and a photoinitiator. The flexible antistatic antireflection optical film has excellent antistatic performance, excellent antireflection performance, high transmissivity and strong mechanical performance, and meets the protection requirement of a display device.
Description
Technical Field
The invention relates to a flexible anti-static anti-reflection optical film for a display device and a preparation method thereof, an anti-static anti-reflection coating liquid and a preparation method thereof, and application of the flexible anti-static anti-reflection optical film and the anti-static anti-reflection coating liquid.
Background
The 21 st century is an informatization age, and applications of electronic products have penetrated into aspects of social life and become indispensable tools and necessities of daily life. In recent years, various display devices are widely applied to various electronic products, and the display devices are easily affected by external light to reduce the display quality, and since the refractive index of the display material is generally 1.5-1.6, the display device can reflect 4-5% of ambient light, and the reflected light can affect the display quality, so that the use experience of users is reduced. In order to improve the display quality, it is required to reduce the reflection of ambient light, and directly attach an anti-reflection film on the surface of the display device, so that the reflection of the display device can be reduced at a lower cost, better image quality is provided, and better user experience is brought.
In addition, during the production and use of the antireflection optical film, static electricity is generated on the film due to environmental factors and the insulation of materials, and adverse effects caused by charge accumulation are one of the most frequent and difficult to eliminate. Therefore, it is necessary to provide an anti-static function to the anti-reflection optical film, and the anti-static film having a low surface resistance not only has an anti-static function, but also can provide an anti-fouling and anti-dust effect to the film. In order to impart antistatic properties to the antireflection film layer, it is generally necessary to interpose a hardening coating or antistatic layer having antistatic properties between the transparent base film and the low refractive index layer. Meanwhile, since the anti-static anti-reflective film is adhered to the surface of the display device and closely contacts with the external environment, in order to maintain good image display quality, the anti-static anti-reflective film needs to have not only good transmittance and anti-static performance but also higher hardness and adhesion, so that it is necessary to design and manufacture an optical film with sufficient surface hardness, good adhesion, excellent anti-reflective effect and excellent anti-static performance.
Disclosure of Invention
At present, a smooth antistatic antireflection film is coated on the surface of a substrate to realize the antireflection and antistatic properties at the same time, but no film has been reported yet.
Aiming at the problems of static electricity, reflection and the like commonly existing in the field of the liquid crystal display screen at present, the invention aims to provide an anti-reflection optical film which has full anti-reflection performance and excellent anti-static performance in a single-layer structure, and meanwhile, has excellent anti-fouling effect, heat resistance and scratch resistance. In the present invention, the "single-layer structure" means that the coating layer laminated on the transparent base film is one layer.
As a first aspect of the present invention, there is provided a flexible antistatic antireflection optical film comprising a flexible substrate; the anti-static anti-reflection coating layer is adhered to at least one side surface of the flexible substrate, and the anti-static anti-reflection coating layer is of a single-layer structure.
According to the flexible antistatic antireflection optical film, the thickness of the antistatic antireflection coating layer is 50-400nm, more preferably 100-160nm.
According to the flexible antistatic antireflection optical film, the visible light transmittance of the flexible substrate is more than or equal to 90%, and the haze value is less than or equal to 1%; the material of the material can be PET, TAC, PC, PMMA, PE or PI preferably; more preferably a PET film or a TAC film.
The flexible anti-static anti-reflection optical film according to any one of the above, wherein the flexible substrate is a PET film, and the transmission of the flexible anti-static anti-reflection optical film The reflectivity is 95-99%, and the reflectivity is 0.7-0.9%; surface resistivity of 10 9 -10 11 Omega cm; the hardness of the pencil is more than or equal to H.
The flexible antistatic antireflection optical film according to any one of the above, wherein the flexible substrate is a TAC film, the transmittance of the flexible antistatic antireflection optical film is 99-99.5%, and the reflectance is 0.35-0.55%; surface resistivity 10 10 -10 11 Omega cm; the hardness of the pencil is more than or equal to H.
The transparent film substrate used in the present invention is not particularly limited, and a material excellent in the transmittance of visible light (transmittance of more than 90%) and the transparency (haze value of less than 1%) is preferable for the transparent substrate according to any of the above flexible antistatic antireflection optical films. Such as polyethylene terephthalate (PET) film, polycarbonate (PC film), triacetate fiber film (TAC), polymethyl methacrylate (PMMA) film, and the like. Polyethylene terephthalate (PET) film is preferred. The thickness of the transparent substrate is not particularly limited and may be appropriately selected depending on the circumstances, and generally the substrate thickness is in the range of 10 to 500. Mu.m, preferably 20 to 200. Mu.m.
As a second aspect of the present invention, there is provided a method for producing a flexible antistatic antireflection optical film, comprising:
coating an antistatic anti-reflection coating liquid on at least one side surface of the flexible substrate, wherein the antistatic anti-reflection coating liquid is coated with only one layer; and then ultraviolet radiation is used for curing to obtain the flexible antistatic antireflection optical film with a single coating layer.
According to the preparation method of the flexible antistatic antireflection optical film, the thickness of the coating film layer is 50-400nm, and more preferably 100-160nm.
According to the preparation method of the flexible antistatic antireflection optical film, the flexible substrate is a PET film, a TAC film, a PC film or a PMMA film, and more preferably is a PET film or a TAC film.
According to the method for producing a flexible antistatic antireflection optical film of any one of the above, the transparent film substrate used in the present invention is not particularly limited, and a material excellent in the transmittance of visible light (transmittance of more than 90%) and the transparency (haze value of less than 1%) is preferable as the transparent substrate. Such as polyethylene terephthalate (PET) film, polycarbonate (PC) film, triacetate film (TAC), polymethyl methacrylate (PMMA) film, and the like. Polyethylene terephthalate (PET) film is preferred. The thickness of the transparent substrate is not particularly limited and may be appropriately selected depending on the circumstances, and generally the substrate thickness is in the range of 10 to 500. Mu.m, preferably 20 to 200. Mu.m.
According to the preparation method of the flexible antistatic antireflection optical film, the coating mode is a roll-to-roll coating mode, and a gravure roll coating head or a slit coating head is recommended.
According to the preparation method of the flexible antistatic antireflection optical film, the curing conditions are as follows: the linear velocity is 15-35m/min, the temperature of the pre-drying oven is 50-80 ℃, the pre-drying time is 0.5-1min, and the energy density of ultraviolet curing is 350-800mJ/cm 2 The power density is 40-80mW/cm 2 。
According to the preparation method of the flexible antistatic antireflection optical film, the antistatic antireflection coating liquid comprises UV (ultraviolet) curing resin, hollow organic silicon nano particles, an antistatic agent, a solvent, a wetting leveling agent and a photoinitiator.
According to the preparation method of the flexible antistatic antireflection optical film, the preferable weight units of the components are respectively as follows
UV curable resin: 0.5-1.5,
hollow silicone nanoparticles: 1.0-3.5,
antistatic agent: 1-2.5,
solvent: 92-98,
wetting leveling agent: 0.05-0.15,
and (3) a photoinitiator: 0.05-0.15.
According to the preparation method of the flexible antistatic antireflection optical film, the UV curing resin is at least one selected from aliphatic polyurethane acrylate, epoxy acrylate, aromatic polyurethane acrylate, tri (2-hydroxyethyl) isocyanurate triacrylate, (2) ethoxylated bisphenol A dimethacrylate, polyurethane acrylate, high-functionality polyurethane acrylate and 1, 4-butanediol dimethacrylate.
According to the method for preparing the flexible antistatic antireflection optical film, the UV curing resin is selected from polyurethane acrylate or epoxy acrylate, and more preferably polyurethane acrylate.
According to the method for preparing the flexible antistatic antireflection optical film, the UV curing resin is selected from aliphatic polyurethane acrylate and comprises at least one medium-functionality resin and at least one high-functionality resin; the high-functionality resin is a resin with a functionality of more than 8, and the medium-functionality resin is a resin with a functionality of 4-7.
According to the preparation method of the flexible antistatic antireflection optical film, the UV curing resin further comprises low-functionality aliphatic polyurethane acrylate resin, and the low-functionality resin refers to resin with a functionality of 1-3.
More preferably, the UV curable resin is selected from one or more combinations of aliphatic urethane acrylate (molecular weight 1000, functionality 7), aliphatic urethane acrylate (molecular weight 2000, functionality 9), epoxy acrylate (molecular weight 2000, functionality 2), aromatic urethane acrylate (molecular weight 1200, functionality 10), tris (2-hydroxyethyl) isocyanurate triacrylate (molecular weight 1200, functionality 3), (2) ethoxylated bisphenol a dimethacrylate (functionality 2), urethane acrylate (functionality 9), high functionality urethane acrylate (functionality 15), 1,4 butanediol dimethacrylate (functionality 2).
According to the preparation method of the flexible antistatic antireflection optical film, the refractive index of the hollow organosilicon nano-particles is 1.10-1.45, and the particle size of the hollow organosilicon nano-particles is 30-200nm, preferably 40-200nm, and more preferably 50-100 nm.
According to the preparation method of the flexible antistatic antireflection optical film, the antistatic agent is a conductive compound, and preferably at least one selected from tri-n-octyl methyl ammonium bis (trifluoromethanesulfonyl) imide salt, lithium ion compound and bis (polyhaloalkyl sulfonyl) imide tetraalkylphosphine salt.
According to the method for producing the flexible antistatic antireflection optical film described above, the solvent is preferably a mixed solvent, preferably at least two selected from toluene, xylene, ethyl acetate, butyl acetate, isobutyl acetate, propyl acetate, ethanol, isopropanol, isobutanol, acetone, butanone, methyl isobutyl ketone, isophorone, propylene glycol methyl ether, and propylene glycol butyl ether.
According to the above-mentioned method for producing a flexible antistatic antireflection optical film, the photoinitiator is preferably at least one selected from 1-hydroxycyclohexylphenyl ketone, 2-methyl-1- (4-methylthiophenyl) -2-morpholin-1-one, difunctional α -hydroxyketone, 2-hydroxy-methylphenyl propane-1-one, 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide, and phenylbis (2, 4, 6-trimethylbenzoyl) phosphine oxide.
According to the preparation method of the flexible antistatic antireflection optical film, the wetting leveling agent is preferably one or more selected from hydroxyl polyether type organosilicon slip agent, macromolecular polyether modified acrylic ester surface auxiliary agent, polyether modified dimethyl polysiloxane organosilicon surface auxiliary agent, polyacrylate type leveling auxiliary agent, epoxy phenyl vinyl silane oligomer, short-chain perfluorinated fluorine-containing surfactant and solvent type fluorinated polymer; preferably at least one of a fluorosurfactant and a polyacrylate-type leveling aid.
According to the preparation method of the flexible antistatic antireflection optical film, the antistatic antireflection coating liquid is prepared according to the following steps:
preparing antistatic anti-reflection coating liquid to comprise UV curing resin, hollow organosilicon nano particles, an antistatic agent, a solvent, a wetting leveling agent and a photoinitiator; the method comprises the steps of,
(1) Preparing a solvent A: preparing a solvent A as a mixed solvent, wherein the solvent A is at least one selected from the solvents; the components of solvent A were mixed well and stirred at room temperature for 30min.
(2) Preparing a resin dispersion liquid B: uniformly mixing at least one UV-curable resin selected from the above UV-curable resins (when the UV-curable resins have more than two types, uniformly mixing the UV-curable resins), adding a proper amount of solvent A, stirring at room temperature for 30min, and uniformly mixing.
(3) Preparing antistatic anti-reflection coating liquid: stirring the resin dispersion liquid B, the solvent A and the hollow organosilicon nano particles at room temperature for 60min, and uniformly mixing; adding an antistatic agent, and continuing stirring for 30min, wherein the antistatic agent is at least one of the antistatic agents; and (3) continuously stirring for 30min after adding a wetting and leveling agent, wherein the wetting and leveling agent is at least one of the wetting and leveling agents, then adding a photoinitiator, wherein the photoinitiator is at least one of the photoinitiators, stirring for 30min, and filtering to obtain the antistatic anti-reflection coating liquid.
The method for producing a flexible antistatic antireflection optical film according to any one of the above, wherein the UV curable resin is selected from aliphatic urethane acrylates, including at least two aliphatic urethane acrylates, and includes at least one medium-functional resin and at least one high-functional resin; the high-functionality resin is aliphatic polyurethane acrylate resin with functionality of more than 8, and the medium-functionality resin is aliphatic polyurethane acrylate resin with functionality of 4-7.
According to the preparation method of the flexible antistatic antireflection optical film, the UV curing resin further comprises low-functionality aliphatic polyurethane acrylate resin, wherein the low-functionality resin refers to aliphatic polyurethane acrylate resin with the functionality of 1-3.
As a third aspect of the present invention, there is provided an antistatic anti-reflection coating liquid characterized by comprising a UV curable resin, hollow silicone nanoparticles, an antistatic agent, a solvent, a wetting leveling agent and a photoinitiator; the weight units of the components are respectively as follows
UV curable resin: 0.5-1.5;
hollow silicone nanoparticles: 1.0-3.5;
antistatic agent: 1-2.5;
solvent: 92-98;
wetting leveling agent: 0.05-0.15;
and (3) a photoinitiator: 0.05-0.15.
According to the antistatic anti-reflection coating liquid, the UV curable resin is selected from polyurethane acrylate or epoxy acrylate, and more preferably polyurethane acrylate.
The antistatic anti-reflection coating liquid according to any one of the above, wherein the UV-curable resin comprises at least one of aliphatic urethane acrylate, epoxy acrylate, aromatic urethane acrylate, tris (2-hydroxyethyl) isocyanurate triacrylate, (2) ethoxylated bisphenol a dimethacrylate, urethane acrylate, high-functionality urethane acrylate, and 1, 4-butanediol dimethacrylate.
More preferably, the UV curable resin is selected from one or more combinations of aliphatic urethane acrylate (molecular weight 1000, functionality 7), aliphatic urethane acrylate (molecular weight 2000, functionality 9), epoxy acrylate (molecular weight 2000, functionality 2), aromatic urethane acrylate (molecular weight 1200, functionality 10), tris (2-hydroxyethyl) isocyanurate triacrylate (molecular weight 1200, functionality 3), (2) ethoxylated bisphenol a dimethacrylate (functionality 2), urethane acrylate (functionality 9), high functionality urethane acrylate (functionality 15), 1,4 butanediol dimethacrylate (functionality 2).
According to the antistatic anti-reflection coating liquid, the refractive index of the hollow organic silicon nano particles is 1.10-1.45, the particle size of the hollow organic silicon nano particles is 30-200nm, preferably 40-200nm, more preferably 50-100nm, and the hollow organic silicon nano particles are self-made.
The antistatic anti-reflection coating liquid according to any one of the above, wherein the antistatic agent is a conductive compound, preferably at least one selected from tri-n-octylmethylammonium bis (trifluoromethanesulfonyl) imide salt, lithium ion compound, bis (polyhaloalkyl sulfonyl) imide tetraalkylphosphine salt.
The antistatic anti-reflection coating liquid according to any one of the above, wherein the solvent is a mixed solvent, preferably at least two selected from toluene, xylene, ethyl acetate, butyl acetate, isobutyl acetate, propyl acetate, ethanol, isopropanol, isobutanol, acetone, butanone, methyl isobutyl ketone, isophorone, propylene glycol methyl ether and propylene glycol butyl ether.
The antistatic anti-reflection coating liquid according to any one of the above, the photoinitiator is preferably at least one selected from 1-hydroxycyclohexylphenyl ketone, 2-methyl-1- (4-methylthiophenyl) -2-morpholin-1-one, difunctional α -hydroxyketone, 2-hydroxy-methylphenyl propane-1-one, 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide or phenylbis (2, 4, 6-trimethylbenzoyl) phosphine oxide.
The antistatic anti-reflection coating liquid according to any one of the above, wherein the wetting leveling agent is preferably one or more selected from hydroxyl polyether type organosilicon slip agent, macromolecular polyether modified acrylic ester surface auxiliary agent, polyether modified dimethyl polysiloxane organosilicon surface auxiliary agent, polyacrylate type leveling auxiliary agent, epoxy phenyl vinyl silane oligomer, short-chain perfluorinated fluorine-containing surfactant and solvent type fluorinated polymer; more preferably at least one of a fluorosurfactant and a polyacrylate-type leveling aid.
As a fourth aspect of the present invention, there is provided a method for preparing an antistatic anti-reflection coating liquid according to any one of the above, comprising: preparing antistatic anti-reflection coating liquid to comprise UV curing resin, hollow organosilicon nano particles, an antistatic agent, a solvent, a wetting leveling agent and a photoinitiator; the method comprises the steps of,
(1) Preparing a solvent A: preparing a solvent A as a mixed solvent, wherein the solvent A is at least one selected from the solvents; the components of solvent A were mixed well and stirred at room temperature for 30min.
(2) Preparing a resin dispersion liquid B: mixing at least one of the above UV-curable resins (when the UV-curable resins have more than two types, mixing each UV-curable resin uniformly), adding appropriate amount of solvent A, stirring at room temperature for 30min, and mixing uniformly.
(3) Preparing antistatic anti-reflection coating liquid: stirring the resin dispersion liquid B, the solvent A and the hollow organosilicon nano particles at room temperature for 60min, and uniformly mixing; adding an antistatic agent, and continuing stirring for 30min, wherein the antistatic agent is at least one of the antistatic agents; and (3) continuously stirring for 30min after adding a wetting and leveling agent, wherein the wetting and leveling agent is at least one of the wetting and leveling agents, then adding a photoinitiator, wherein the photoinitiator is at least one of the photoinitiators, stirring for 30min, and filtering to obtain the antistatic anti-reflection coating liquid.
The method for preparing the antistatic anti-reflection coating liquid according to any one of the above, wherein the UV curable resin is selected from aliphatic urethane acrylate, comprises at least two aliphatic urethane acrylates, and comprises at least one medium-functionality resin and at least one high-functionality resin; the high-functionality resin is aliphatic polyurethane acrylate resin with functionality of more than 8, and the medium-functionality resin is aliphatic polyurethane acrylate resin with functionality of 4-7.
According to the preparation method of the antistatic anti-reflection coating liquid, the UV curing resin further comprises low-functionality aliphatic polyurethane acrylate resin, and the low-functionality resin refers to aliphatic polyurethane acrylate resin with the functionality of 1-3.
As a fifth aspect of the present invention, there is provided an application of the flexible anti-static anti-reflection optical film according to any one of the above or the flexible anti-static anti-reflection optical film prepared from the above anti-static anti-reflection coating liquid in surface protection of a polarizing plate or a display screen of a liquid crystal display, wherein the flexible anti-static anti-reflection optical film can be used for protection of a screen of a flat panel display device, a touch screen, etc. after being coated with an installation adhesive on the back surface and being compounded with a release film.
Compared with the anti-reflection technology of the existing transparent plastic substrate, the anti-static anti-reflection optical coating using the anti-static anti-reflection optical coating liquid can greatly improve the anti-static performance of various flexible substrates on the basis that the transparency of the flexible substrates is not affected, and can obviously reduce the surface resistivity and improve the anti-static performance.
The invention is particularly effective for PET and TAC substrates. According to the invention, the transmittance of the polyethylene terephthalate (PET) substrate is improved from 90.58% to 98.33%, and the reflectance is reduced from 5.22% to 0.74%; the transmittance of the triacetate fiber film (TAC) substrate is improved from 92.5% to 99.1%, and the reflectance is reduced from 4.00% to 0.38%; the surface resistivity of the substrate of the two materials is also obviously reduced from 10 13 Omega cm to 10 9 -10 11 Ω·cm。
The coating disclosed by the invention has good ultraviolet irradiation resistance, and has good scratch resistance, stain resistance, static resistance and high permeability. In a word, the invention solves a plurality of problems of the display material at one time, is a comprehensive lifting technology, and has originality and very excellent comprehensive performance.
Drawings
FIG. 1 is a schematic illustration of the structure of a flexible antistatic antireflection optical film according to an embodiment of the present invention; in this embodiment, an antistatic antireflection coating layer is respectively coated and attached to the two side surfaces of the flexible substrate, so that an antistatic antireflection coating layer with a single-layer structure is respectively attached to the two sides;
FIG. 2 is a graph of the transmittance of a flexible anti-static anti-reflective optical film of the present invention, which is a graph of the transmittance of samples of the optical films of examples one, two, and three;
FIG. 3 is a graph of the transmittance of a flexible antistatic antireflection optical film of the present invention, two, which is a graph of the transmittance of a sample of a fourth, fifth optical film;
FIG. 4 is a graph of the transmittance of a flexible anti-static anti-reflective optical film of the present invention, three, which is a graph of the transmittance of a sample of the seven optical film of example six;
FIG. 5 is a graph of the reflectance of a flexible anti-static anti-reflective optical film of the present invention, which is a graph of the reflectance of a sample of the first, second, and third optical films;
Fig. 6 is a graph of the reflectivity of a second, example of a flexible anti-static anti-reflective optical film according to the present invention.
Fig. 7 is a reflectance graph three of the flexible antistatic antireflection optical film of the present invention, which is a reflectance graph of a sample of the seven optical films of example six.
Detailed Description
The invention will be described in detail below with respect to certain specific embodiments thereof in order to better understand the invention and thereby to more clearly define the scope of the invention as claimed. It should be noted that the following description is only some embodiments of the inventive concept and is only a part of examples of the present invention, wherein the specific direct description of the related structures is only for the convenience of understanding the present invention, and the specific features do not naturally and directly limit the implementation scope of the present invention. Conventional selections and substitutions made by those skilled in the art under the guidance of the inventive concept should be considered as being within the scope of the claimed invention.
Example 1
1. Preparing antistatic anti-reflection coating liquid AR-1
1.1 materials: aliphatic urethane acrylate (molecular weight 1000, functionality 7), aliphatic urethane acrylate (molecular weight 2000, functionality 9), 1,4 butanediol dimethacrylate (functionality 2), hollow silicone nanoparticles (d50=60 nm, wall thickness 5 nm), bis (polyhaloalkyl sulfonyl) imine tetraalkylphosphinate, ethyl acetate, propylene glycol methyl ether, isobutanol, 1-hydroxycyclohexyl phenyl ketone, phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide.
1.2 method:
(1) Preparing a solvent A: ethyl acetate, propylene glycol methyl ether and isobutanol are mixed according to the mass ratio of 2:1:1, and stirring for 30min at room temperature to obtain 20g of solvent A.
(2) Preparing a resin dispersion liquid B: aliphatic urethane acrylate (molecular weight 1000, functionality 7), aliphatic urethane acrylate (molecular weight 2000, functionality 9), 1, 4-butanediol dimethacrylate (functionality 2) were mixed in a mass ratio of 1:1:0.5 g, adding 2g of solvent A, stirring at room temperature for 30min, and mixing uniformly.
(3) Preparing antistatic anti-reflection coating liquid: 2.3g of resin dispersion liquid B, 18g of solvent A and 0.4g of hollow organosilicon nano particles are stirred for 60min at room temperature and uniformly mixed; then adding 0.2g of bis (polyhaloalkyl sulfonyl) imine tetraalkyl phosphine salt serving as an antistatic agent, and continuously stirring for 30min; adding 0.01g of an auxiliary agent hydroxyl polyether type organosilicon slip agent, and continuously stirring for 30min; finally, 0.02g of photo initiator 1-hydroxycyclohexyl phenyl ketone and 0.01g of phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide are added, stirred for 30min, and filtered to obtain the anti-reflection coating liquid AR-1.
2. Coated antistatic anti-reflective optical coating
AR-1 is applied to clean by gravure roll coating head On a polyethylene terephthalate (PET) substrate, the film running line speed is 15m/min, the film passes through a coating head and enters an oven with the temperature of 55 ℃ for pre-drying, and then is cured by a mercury lamp and ultraviolet, wherein the curing energy density is 625mJ/cm 2 The power density was 74mW/cm 2 。
The cured product was an antistatic antireflection optical film, and the coating was designated as example 1 optical film sample.
Example two
1. Preparing antistatic anti-reflection coating liquid AR-2
1.1 materials: aliphatic urethane acrylate (molecular weight 1000, functionality 7), aliphatic urethane acrylate (molecular weight 2000, functionality 9), hollow silicone nanoparticles (d50=70 nm, wall thickness 5 nm), lithium ion compounds, ethyl acetate, propylene glycol methyl ether, isobutanol, 1-hydroxycyclohexyl phenyl ketone, phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, macromolecular polyether modified acrylate surface auxiliary agents.
1.2 method:
(1) Preparing a solvent A: ethyl acetate, propylene glycol methyl ether and isobutanol are mixed according to the mass ratio of 2:1:1, and stirring for 30min at room temperature to obtain 20g of solvent A.
(2) Preparing a resin dispersion liquid B: aliphatic urethane acrylate (molecular weight 1000, functionality 7) and aliphatic urethane acrylate (molecular weight 2000, functionality 9) were mixed according to a mass ratio of 2:1, mixing, wherein the mass is 0.2g after mixing, adding 2g of solvent A, stirring for 30min at room temperature, and uniformly mixing.
(3) Preparing antistatic anti-reflection coating liquid: stirring 2.2g of resin dispersion liquid B, 18g of solvent A and 0.4g of hollow organosilicon nano particles at room temperature for 60min, uniformly mixing, adding 0.5g of antistatic agent lithium ion compound, continuously stirring for 30min, adding 0.5g of macromolecular polyether modified acrylate surface auxiliary agent, continuously stirring for 30min, finally adding 0.02g of photoinitiator 1-hydroxycyclohexyl phenyl ketone and 0.01g of phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, stirring for 30min, and filtering to obtain the anti-reflection coating liquid AR-2.
2. Coated antistatic anti-reflective optical coating
AR-2 is coated on a clean polyethylene terephthalate (PET) substrate through a gravure roll coating head, the film running linear speed is 15m/min, the film passes through the coating head and enters an oven with the temperature of 55 ℃ for pre-drying, and then is cured by a mercury lamp and ultraviolet, wherein the curing energy density is 625mJ/cm 2 The power density was 74mW/cm 2 。
The cured product was an antistatic antireflection optical film, and the coating was designated as example 2 optical film sample.
Example III
1. Preparing antistatic anti-reflection coating liquid AR-3
1.1 materials: aliphatic urethane acrylate (molecular weight 1000, functionality 7), aliphatic urethane acrylate (molecular weight 2000, functionality 9), hollow silicone nanoparticles (d50=80 nm, wall thickness 5 nm), tri-n-octylmethylammonium bis (trifluoromethanesulfonyl) imide salt, ethyl acetate, propylene glycol methyl ether, isobutanol, 1-hydroxycyclohexylphenyl ketone, phenylbis (2, 4, 6-trimethylbenzoyl) phosphine oxide, macromolecular polyether modified acrylate surface auxiliary agent.
1.2 method:
(1) Preparing a solvent A: ethyl acetate, propylene glycol methyl ether and isobutanol are mixed according to the mass ratio of 2:1:1, stirring for 30min at room temperature, and mixing to obtain a mass of 20g.
(2) Preparing a resin dispersion liquid B: aliphatic urethane acrylate (molecular weight 1000, functionality 7) and aliphatic urethane acrylate (molecular weight 2000, functionality 9) were mixed according to a mass ratio of 2:1, mixing, wherein the mass is 0.3g after mixing, adding 2g of solvent A, stirring for 30min at room temperature, and uniformly mixing.
(3) Preparing antistatic anti-reflection coating liquid: stirring 2.3 g of resin dispersion liquid B, 18g of solvent A and 0.4g of hollow organosilicon nano particles at room temperature for 60min, uniformly mixing, adding 0.5g of antistatic agent tri-n-octyl methyl ammonium bis (trifluoromethanesulfonyl) imide salt, continuously stirring for 30min, adding 0.1g of auxiliary agent macromolecular polyether modified acrylate surface auxiliary agent, continuously stirring for 30min, finally adding 0.02g of photoinitiator 1-hydroxycyclohexyl phenyl ketone and 0.01g of phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, stirring for 30min, and filtering to obtain the anti-reflection coating liquid AR-3.
2. Coated antistatic anti-reflective optical coating
AR-3 is coated on a clean polyethylene terephthalate (PET) substrate through a gravure roll coating head, the film running linear speed is 15m/min, the film is pre-dried in an oven with the temperature of 55 ℃ after passing through the coating head, and then is cured by a mercury lamp and ultraviolet, wherein the curing energy density is 625mJ/cm 2 The power density was 74mW/cm 2 。
The cured product was an antistatic antireflection optical film, and the coating was designated as example 3 optical film sample.
Example IV
1. Preparing antistatic anti-reflection coating liquid AR-4
1.1 materials: aliphatic urethane acrylate (molecular weight 1000, functionality 7), aliphatic urethane acrylate (molecular weight 2000, functionality 9), hollow silicone nanoparticles (d50=70 nm, wall thickness 5 nm), tri-n-octylmethylammonium bis (trifluoromethanesulfonyl) imide salt, isopropanol, propylene glycol methyl ether, isobutanol, 1-hydroxycyclohexylphenyl ketone, phenylbis (2, 4, 6-trimethylbenzoyl) phosphine oxide, macromolecular polyether modified acrylate surface auxiliary agent.
1.2 method:
(1) Preparing a solvent A: isopropanol, propylene glycol methyl ether and isobutanol are mixed according to the mass ratio of 1:1:2, stirring for 30min at room temperature, and mixing to obtain 20g.
(2) Preparing a resin dispersion liquid B: aliphatic urethane acrylate (molecular weight 1000, functionality 7) and aliphatic urethane acrylate (molecular weight 2000, functionality 9) were mixed according to a mass ratio of 2:1, mixing, wherein the mass is 0.2g after mixing, adding 2g of solvent A, stirring for 30min at room temperature, and uniformly mixing.
(3) Preparing antistatic anti-reflection coating liquid: stirring 2.2g of resin dispersion liquid B, 18g of solvent A and 0.7g of hollow organosilicon nano particles at room temperature for 60min, uniformly mixing, adding 0.2g of antistatic agent tri-n-octyl methyl ammonium bis (trifluoromethanesulfonyl) imide salt, continuously stirring for 30min, adding 0.1g of auxiliary agent short-chain perfluorinated surfactant, continuously stirring for 30min, finally adding 0.02g of photoinitiator 1-hydroxycyclohexyl phenyl ketone and 0.01g of phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, stirring for 30min, and filtering to obtain the anti-reflection coating liquid AR-4.
2. Coated antistatic anti-reflective optical coating
AR-4 is coated on a clean triacetate fiber film (TAC) substrate through a gravure roll coating head, the film running linear speed is 15m/min, the film is pre-dried in an oven with the temperature of 55 ℃ after passing through the coating head, and then is cured by a mercury lamp and ultraviolet, wherein the curing energy density is 625mJ/cm 2 The power density was 74mW/cm 2 。
The cured product was an antistatic antireflection optical film, and the coating was designated as example 4 optical film sample.
Example five
1. Preparing antistatic anti-reflection coating liquid AR-5
1.1 materials: aliphatic urethane acrylate (molecular weight 1000, functionality 7), aliphatic urethane acrylate (molecular weight 2000, functionality 9), hollow silicone nanoparticles (d50=60 nm, wall thickness 5 nm), tri-n-octylmethylammonium bis (trifluoromethanesulfonyl) imide salt, isopropanol, propylene glycol methyl ether, isobutanol, 1-hydroxycyclohexylphenyl ketone, phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, short chain perfluorinated surfactants.
1.2 method:
(1) Preparing a solvent A: isopropanol, propylene glycol methyl ether and isobutanol are mixed according to the mass ratio of 1:2:2, stirring for 30min at room temperature, and mixing to obtain 20g.
(2) Preparing a resin dispersion liquid B: aliphatic urethane acrylate (molecular weight 1000, functionality 7) and aliphatic urethane acrylate (molecular weight 2000, functionality 9) were mixed according to a mass ratio of 2:1, mixing, wherein the mass is 0.2g after mixing, adding 2g of solvent A, stirring for 30min at room temperature, and uniformly mixing.
(3) Preparing antistatic anti-reflection coating liquid: stirring 2.2g of resin dispersion liquid B, 18g of solvent A and 0.7g of hollow organosilicon nano particles at room temperature for 60min, uniformly mixing, adding 0.3g of antistatic agent tri-n-octyl methyl ammonium bis (trifluoromethanesulfonyl) imide salt, continuously stirring for 30min, adding 0.2g of auxiliary agent macromolecular polyether modified acrylate surface auxiliary agent, continuously stirring for 30min, finally adding 0.02g of photoinitiator 1-hydroxycyclohexyl phenyl ketone and 0.01g of phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, stirring for 30min, and filtering to obtain an anti-reflection coating liquid AR-5.
2. Coated antistatic anti-reflective optical coating
AR-5 is coated on a clean triacetate fiber film (TAC) substrate through a gravure roll coating head, the film running linear speed is 15m/min, the film is pre-dried in an oven with the temperature of 55 ℃ after passing through the coating head, and then is cured by a mercury lamp and ultraviolet, wherein the curing energy density is 625mJ/cm 2 The power density was 74mW/cm 2 。
The cured product was an antistatic antireflection optical film, and the coating was designated as example 5 optical film sample.
Example six
1. Preparing antistatic anti-reflection coating liquid AR-6
1.1 materials: aliphatic urethane acrylate (molecular weight 1000, functionality 7), aliphatic urethane acrylate (molecular weight 2000, functionality 9), 1,4 butanediol dimethacrylate (functionality 2), hollow silicone nanoparticles (d50=60 nm, wall thickness 5 nm), lithium ion compounds, isopropanol, isophorone, propylene glycol methyl ether, 1-hydroxycyclohexylphenyl ketone, phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, short chain perfluorinated surfactants.
1.2 method:
(1) Preparing a solvent A: isopropanol, isophorone and propylene glycol methyl ether are mixed according to the mass ratio of 1:2:2, stirring for 30min at room temperature, and mixing to obtain 20g.
(2) Preparing a resin dispersion liquid B: aliphatic urethane acrylate (molecular weight 1000, functionality 7), aliphatic urethane acrylate (molecular weight 2000, functionality 9), 1,4 butanediol dimethacrylate (functionality 2) were mixed according to a mass ratio of 2:1:0.5 g, adding 2g of solvent A, stirring at room temperature for 30min, and mixing uniformly.
(3) Preparing antistatic anti-reflection coating liquid: stirring 2.3g of resin dispersion liquid B, 18g of solvent A and 0.2g of hollow organosilicon nano particles at room temperature for 60min, uniformly mixing, adding 0.4g of antistatic agent lithium ion compound, continuously stirring for 30min, adding 0.2g of auxiliary macromolecular polyether modified acrylate surface auxiliary, continuously stirring for 30min, finally adding 0.02g of photoinitiator 1-hydroxycyclohexyl phenyl ketone and 0.01g of phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, stirring for 30min, and filtering to obtain the anti-reflection coating liquid AR-6.
2. Coated antistatic anti-reflective optical coating
AR-6 is coated on a clean polyethylene terephthalate (PET) substrate through a gravure roll coating head, the film running linear speed is 15m/min, the film is pre-dried in an oven with the temperature of 75 ℃ after passing through the coating head, and then is cured by a mercury lamp and ultraviolet, wherein the curing energy density is 525mJ/cm 2 The power density was 74mW/cm 2 。
The cured product was an antistatic antireflection optical film, and the coating was designated as example 6 optical film sample.
Example seven
1. Preparing antistatic anti-reflection coating liquid AR-7
1.1 materials: aliphatic urethane acrylate (molecular weight 1000, functionality 7), aliphatic urethane acrylate (molecular weight 2000, functionality 9), (2-hydroxyethyl) isocyanurate triacrylate (molecular weight 1200, functionality 3), hollow silicone nanoparticles (d50=60 nm, wall thickness 5 nm), tri-n-octylmethylammonium bis (trifluoromethanesulfonyl) imide salt, ethyl acetate, butyl acetate, isobutanol, 1-hydroxycyclohexylphenyl ketone, phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, short chain perfluorinated surfactants.
1.2 method:
(1) Preparing a solvent A: ethyl acetate, butyl acetate and isobutanol are mixed according to a mass ratio of 3:2:2, stirring for 30min at room temperature, and mixing to obtain 20g.
(2) Preparing a resin dispersion liquid B: aliphatic urethane acrylate (molecular weight 1000, functionality 7), aliphatic urethane acrylate (molecular weight 2000, functionality 9) and (2-hydroxyethyl) isocyanurate triacrylate (molecular weight 1200, functionality 3) were mixed according to a mass ratio of 2:1:1, mixing, wherein the mass is 0.3g after mixing, adding 2g of solvent A, stirring for 30min at room temperature, and uniformly mixing.
(3) Preparing antistatic anti-reflection coating liquid: stirring 2.3g of resin dispersion liquid B, 18g of solvent A and 0.7g of hollow organosilicon nano particles at room temperature for 60min, uniformly mixing, adding 0.5g of anti-static agent tri-n-octyl methyl ammonium bis (trifluoromethanesulfonyl) imide salt, continuously stirring for 30min, adding 0.2g of auxiliary agent macromolecular polyether modified acrylate surface auxiliary agent, continuously stirring for 30min, finally adding 0.02g of photoinitiator 1-hydroxycyclohexyl phenyl ketone and 0.01g of phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, stirring for 30min, and filtering to obtain the anti-reflection coating liquid AR-7.
2. Coated antistatic anti-reflective optical coating
AR-5 is coated on a clean polyethylene terephthalate (PET) substrate through a gravure roll coating head, the film running linear speed is 15m/min, the film is pre-dried in an oven with the temperature of 55 ℃ after passing through the coating head, and then is cured by a mercury lamp and ultraviolet, wherein the curing energy density is 525mJ/cm 2 The power density was 74mW/cm 2 。
The cured product was an antistatic antireflection optical film, and the coating was designated as example 7 optical film sample.
The optical film samples prepared in examples 1 to 7 were tested, and the parameters thereof were measured as shown in Table 1.
Table 1 examples 1-7 optical film sample parameter test tables
By coating the PET substrate surface, the maximum transmittance of the film is increased from 90.58% to 98.33%, and the minimum reflectance is reduced from 5.22% to 0.74%; by coating the TAC substrate surface, the maximum transmittance of the film was increased from 92.5% to 99.1%, and the minimum reflectance was decreased from 4.00% to 0.38%. The transmittance and reflectance test results are shown in table 1.
The surface resistance of the PET substrate can be changed from 10 by coating the PET substrate surface 13 Omega cm to 10 9 -10 11 Omega cm, on the TAC substrate surfaceCoating film, surface resistance can be reduced from 10 13 Omega cm to 10 10 -10 11 Omega cm. The test results are shown in Table 1.
By coating the PET substrate surface and the TAC substrate surface, the haze can be controlled below 1%, and the test results are shown in Table 1.
The pencil hardness of the film layer of the optical film sample obtained by coating the surfaces of the PET substrate and the TAC substrate is above H, and the test results are shown in Table 1.
Wherein, each parameter is measured as follows.
1. Optical property detection of optical film samples
Detection instrument: uv-vis spectrometer model: u-4100, hitachi.
The detection method comprises the following steps: an antistatic anti-reflection optical coating was coated on a polyethylene terephthalate (PET) film and a triacetate fiber film (TAC) substrate (coating prepared in examples 1 to 7) for experiments ranging from 300 to 1000nm.
2. Antistatic property detection of optical film sample
Detection instrument: surface resistance appearance model: ST-4, SIMCO
The detection method comprises the following steps: an antistatic antireflection optical coating liquid was coated on a polyethylene terephthalate (PET) film, a triacetate fiber film (TAC) substrate (the coating prepared in examples 1 to 7) for experiments, and a surface resistance was measured using a surface resistance meter.
3. Haze performance detection for optical film samples
Detection instrument: haze tester model: WGW photoelectric haze meter, electric object light
The detection method comprises the following steps: an antistatic anti-reflection optical coating was coated on a polyethylene terephthalate (PET) film, a triacetate fiber film (TAC) substrate (the coating prepared in examples 1 to 7) for experiments, and a haze tester was used to test the haze of the samples.
4. Hardness detection of optical film samples
Detection instrument: 500 g pencil durometer.
The detection method comprises the following steps: the pencil hardness of the film was measured with a Mitsubishi pencil, and each sample (film prepared in examples 1-7) was measured in triplicate, taking an average, with reference to ASTM D3363.
Claims (16)
1. A method for preparing a flexible antistatic antireflection optical film, comprising the steps of:
coating an antistatic anti-reflection coating liquid on at least one side surface of the flexible substrate, wherein the antistatic anti-reflection coating liquid is coated with only one layer; then ultraviolet radiation is used for curing to obtain the flexible antistatic antireflection optical film with a single coating layer;
The antistatic anti-reflection coating liquid comprises UV curing resin, hollow organosilicon nano particles, an antistatic agent, a solvent, a wetting leveling agent and a photoinitiator; the components are as follows according to weight unit:
UV curable resin: 0.5-1.5, hollow organosilicon nanoparticles: 1.0 to 3.5, antistatic agent: 1-2.5, solvent: 92-98, wetting leveling agent: 0.05-0.15, photoinitiator: 0.05-0.15;
wherein the UV curable resin is selected from aliphatic urethane acrylates and comprises at least one medium functionality resin and at least one high functionality resin; the high-functionality resin is resin with functionality of more than 8, and the medium-functionality resin is resin with functionality of 4-7;
the refractive index of the hollow organic silicon nano-particles is 1.10-1.45, and the particle size of the hollow organic silicon nano-particles is 30-200 nm;
the antistatic agent is a conductive compound, and the solvent is a mixed solvent and is selected from at least two of toluene, xylene, ethyl acetate, butyl acetate, isobutyl acetate, propyl acetate, ethanol, isopropanol, isobutanol, acetone, butanone, methyl isobutyl ketone, isophorone, propylene glycol methyl ether and propylene glycol butyl ether;
the photoinitiator is at least one selected from 1-hydroxycyclohexyl phenyl ketone, 2-methyl-1- (4-methylthiophenyl) -2-morpholine-1-acetone, difunctional alpha-hydroxyketone, 2-hydroxy-methylphenyl propane-1-ketone, 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide or phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide;
The wetting and leveling agent is one or more selected from hydroxyl polyether type organosilicon slip agent, macromolecular polyether modified acrylic ester surface auxiliary agent, polyether modified dimethyl polysiloxane organosilicon surface auxiliary agent, polyacrylate type leveling auxiliary agent, epoxy phenyl vinyl silane oligomer, short-chain perfluorinated fluorine-containing surfactant and solvent type fluorinated polymer.
2. The method of claim 1, wherein the UV curable resin further comprises a low functionality aliphatic urethane acrylate resin, the low functionality resin being a resin having a functionality of 1-3; the thickness of the coating layer is 50-400nm;
the flexible substrate is a PET film, a TAC film, a PC film, a PMMA film, a PE film or a PI film;
the coating mode is a roll-to-roll coating mode;
the curing conditions are as follows: the linear velocity is 15-35m/min, the temperature of the pre-drying oven is 50-80 ℃, the pre-drying time is 0.5-1min, and the energy density of ultraviolet curing is 350-800mJ/cm 2 The power density is 40-80mW/cm 2 。
3. The method according to claim 2, wherein the coating film layer has a thickness of 100 to 160nm;
the flexible substrate is a PET film or a TAC film;
the coating mode is a gravure roll coating head or a slit coating head.
4. A method according to any one of claims 1 to 3, wherein the UV curable resin is a urethane acrylate;
the particle size of the hollow organosilicon nano-particles is between 40 and 200 nm;
the antistatic agent is at least one selected from tri-n-octyl methyl ammonium bis (trifluoromethanesulfonyl) imide salt, lithium ion compound and bis (polyhaloalkyl sulfonyl) imine tetraalkylphosphine salt;
the wetting and leveling agent is at least one of a fluorine-containing surfactant and a polyacrylate type leveling auxiliary agent.
5. The method of claim 4, wherein the hollow silicone nanoparticles have a particle size between 50-100 nm.
6. The method of claim 4, wherein the antistatic anti-reflective coating solution is prepared by:
(1) Preparing a solvent A: preparing a solvent A as a mixed solvent, wherein the solvent A is selected from at least two solvents; uniformly mixing the components of the solvent A, and stirring and mixing at room temperature;
(2) Preparing a resin dispersion liquid B: uniformly mixing at least one UV curing resin selected from the UV curing resins, adding a proper amount of solvent A, and uniformly stirring and mixing at room temperature;
(3) Preparing antistatic anti-reflection coating liquid: stirring and mixing the resin dispersion liquid B, the solvent A and the hollow organosilicon nano particles uniformly at room temperature; adding an antistatic agent, and continuing stirring, wherein the antistatic agent is at least one of the antistatic agents; and (3) continuously stirring after adding a wetting and leveling agent, wherein the wetting and leveling agent is at least one of the wetting and leveling agents, then adding a photoinitiator, wherein the photoinitiator is at least one of the photoinitiators, and filtering after stirring to obtain the antistatic anti-reflection coating liquid.
7. A flexible antistatic antireflection optical film includes a flexible substrate; the anti-static anti-reflection coating film is characterized by further comprising an anti-static anti-reflection coating film layer attached to at least one side surface of the flexible substrate, wherein the anti-static anti-reflection coating film layer is of a single-layer structure, and the flexible anti-static anti-reflection optical film is prepared according to the method of any one of claims 1-6.
8. The flexible antistatic antireflection optical film according to claim 7, wherein the thickness of the antistatic antireflection coating film layer is 50 to 400nm;
the visible light transmittance of the flexible substrate is more than or equal to 90%, and the haze value is less than or equal to 1%; the material is PET, TAC, PC, PMMA, PE or PI;
the flexible substrate is a PET film, the transmissivity of the flexible antistatic antireflection optical film is 95-99%, and the reflectivity is 0.7-0.9%; surface resistivity of 10 9 -10 11 Omega cm; the hardness of the pencil is more than or equal to H;
the flexible substrate is a TAC film, the transmissivity of the flexible antistatic antireflection optical film is 99-99.5%, and the reflectivity is 0.35-0.55%; surface resistivity 10 10 -10 11 Omega cm; the hardness of the pencil is more than or equal to H.
9. The flexible antistatic antireflection optical film of claim 8 wherein the antistatic antireflection film layer has a thickness of 100-160nm;
The flexible substrate is made of PET film or TAC film.
10. An antistatic anti-reflection coating liquid is characterized by comprising UV curing resin, hollow organosilicon nano particles, an antistatic agent, a solvent, a wetting leveling agent and a photoinitiator; the weight units of the components are respectively as follows
UV curable resin: 0.5-1.5;
hollow silicone nanoparticles: 1.0-3.5;
antistatic agent: 1-2.5;
solvent: 92-98;
wetting leveling agent: 0.05-0.15;
and (3) a photoinitiator: 0.05-0.15;
wherein the UV curable resin is selected from aliphatic urethane acrylates and comprises at least one medium functionality resin and at least one high functionality resin; the high-functionality resin is resin with functionality of more than 8, and the medium-functionality resin is resin with functionality of 4-7;
the refractive index of the hollow organic silicon nano-particles is 1.10-1.45, and the particle size of the hollow organic silicon nano-particles is 30-200 nm;
the antistatic agent is a conductive compound, and the solvent is a mixed solvent and is selected from at least two of toluene, xylene, ethyl acetate, butyl acetate, isobutyl acetate, propyl acetate, ethanol, isopropanol, isobutanol, acetone, butanone, methyl isobutyl ketone, isophorone, propylene glycol methyl ether and propylene glycol butyl ether;
The photoinitiator is at least one selected from 1-hydroxycyclohexyl phenyl ketone, 2-methyl-1- (4-methylthiophenyl) -2-morpholine-1-acetone, difunctional alpha-hydroxyketone, 2-hydroxy-methylphenyl propane-1-ketone, 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide or phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide;
the wetting and leveling agent is one or more selected from hydroxyl polyether type organosilicon slip agent, macromolecular polyether modified acrylic ester surface auxiliary agent, polyether modified dimethyl polysiloxane organosilicon surface auxiliary agent, polyacrylate type leveling auxiliary agent, epoxy phenyl vinyl silane oligomer, short-chain perfluorinated fluorine-containing surfactant and solvent type fluorinated polymer.
11. The antistatic anti-reflection coating liquid according to claim 10, wherein the wetting and leveling agent is at least one selected from the group consisting of a fluorine-containing surfactant and a polyacrylate type leveling aid.
12. The antistatic anti-reflection coating solution according to claim 10, wherein the UV curable resin further comprises a low functionality aliphatic urethane acrylate resin, the low functionality resin being a resin having a functionality of 1 to 3
The particle size of the hollow organosilicon nano-particles is between 40 and 200 nm;
The antistatic agent is at least one selected from tri-n-octyl methyl ammonium bis (trifluoromethanesulfonyl) imide salt, lithium ion compound and bis (polyhaloalkyl sulfonyl) imine tetraalkylphosphine salt.
13. The antistatic anti-reflection coating solution according to claim 12, wherein the hollow organosilicon nanoparticles have a particle size of between 50 and 100 nm.
14. The method for preparing an antistatic anti-reflection coating liquid according to any one of claims 10 to 13, comprising:
(1) Preparing a solvent A: preparing a solvent A as a mixed solvent, wherein the solvent A is at least one selected from the solvents; uniformly mixing the components of the solvent A, and uniformly stirring at room temperature;
(2) Preparing a resin dispersion liquid B: uniformly mixing at least one of the UV curing resins, adding a proper amount of solvent A, and uniformly stirring and mixing at room temperature;
(3) Preparing antistatic anti-reflection coating liquid: stirring and mixing the resin dispersion liquid B, the solvent A and the hollow organosilicon nano particles uniformly at room temperature; adding an antistatic agent, and continuing stirring, wherein the antistatic agent is at least one of the antistatic agents; continuously stirring after adding a wetting and leveling agent, wherein the wetting and leveling agent is at least one of the wetting and leveling agents, then adding a photoinitiator, wherein the photoinitiator is at least one of the photoinitiators, and filtering after stirring to obtain the antistatic anti-reflection coating liquid;
The UV curable resin is selected from aliphatic urethane acrylates and comprises at least one medium functionality resin and at least one high functionality resin; the high-functionality resin is a resin with a functionality of more than 8, and the medium-functionality resin is a resin with a functionality of 4-7.
15. The method for preparing an antistatic anti-reflection coating liquid according to claim 14, wherein the UV-curable resin further comprises a low-functionality aliphatic urethane acrylate resin, and the low-functionality resin is a resin with a functionality of 1-3.
16. Use of a flexible anti-static anti-reflection optical film according to any one of claims 7 to 9, or prepared using an anti-static anti-reflection coating solution according to any one of claims 10 to 13, for surface protection of a liquid crystal display polarizer or display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110480817.3A CN113064226B (en) | 2021-04-30 | 2021-04-30 | Flexible antistatic antireflection optical film, antistatic antireflection coating liquid and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110480817.3A CN113064226B (en) | 2021-04-30 | 2021-04-30 | Flexible antistatic antireflection optical film, antistatic antireflection coating liquid and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113064226A CN113064226A (en) | 2021-07-02 |
| CN113064226B true CN113064226B (en) | 2023-05-12 |
Family
ID=76568185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110480817.3A Active CN113064226B (en) | 2021-04-30 | 2021-04-30 | Flexible antistatic antireflection optical film, antistatic antireflection coating liquid and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113064226B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113773449B (en) * | 2021-08-20 | 2022-05-20 | 吉林大学 | Reversible antireflection intelligent material and preparation method thereof |
| CN114591673B (en) * | 2022-04-25 | 2023-09-08 | 江苏日久光电股份有限公司 | Double-sided antistatic LR film, assembly and display device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009001598A (en) * | 2007-06-19 | 2009-01-08 | Nippon Kayaku Co Ltd | Active energy ray curable type antistatic hard coat resin composition |
| CN102162864B (en) * | 2010-02-17 | 2014-06-04 | 日油株式会社 | Anti-reflection film |
| JP5771967B2 (en) * | 2010-02-17 | 2015-09-02 | 日油株式会社 | Antireflection film |
| KR101092573B1 (en) * | 2010-04-06 | 2011-12-13 | 주식회사 엘지화학 | Anti-reflective coating composition, anti-reflection film and method for manufacturing the same |
| KR20130053843A (en) * | 2011-11-16 | 2013-05-24 | 동우 화인켐 주식회사 | Coating composition for anti-static, anti-glare and anti-reflection, film, polarizing plate and display device including the same |
| JP2014081558A (en) * | 2012-10-18 | 2014-05-08 | Toppan Printing Co Ltd | Hard coat composition and hard coat material |
| CN106338783B (en) * | 2015-09-17 | 2018-08-14 | 湖北航天化学技术研究所 | A kind of anti-dazzle antireflective optical film and its preparation method and application |
| CN107033695B (en) * | 2017-05-05 | 2019-07-09 | 宁波长阳科技股份有限公司 | A kind of antistatic coating fluid and a kind of antistatic reflectance coating and preparation method thereof |
| CN109337106B (en) * | 2018-08-27 | 2021-09-14 | 明基材料有限公司 | Hard coating optical film, polarizing plate and image display device |
| CN110441837A (en) * | 2019-07-11 | 2019-11-12 | 昆山之奇美材料科技有限公司 | It is a kind of it is low reflection anti-dazzle film, with this it is low reflection anti-dazzle film polarizer and liquid crystal display panel |
| CN110982325B (en) * | 2019-12-31 | 2021-09-14 | 宁波特粒科技有限公司 | Antireflection, antistatic and super-hydrophilic coating composition, coating and product |
-
2021
- 2021-04-30 CN CN202110480817.3A patent/CN113064226B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113064226A (en) | 2021-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113064226B (en) | Flexible antistatic antireflection optical film, antistatic antireflection coating liquid and preparation method | |
| JP5291919B2 (en) | Protective film for polarizing plate used for display surface or film for image display device front plate | |
| CN102459378B (en) | Anti-soiling composition, anti-soiling film, anti-soiling laminated film, transfer film, and resin laminate, and method for manufacturing resin laminate | |
| KR101069570B1 (en) | Composition for forming hard-coat layer, hard-coat film, optical element, and image display | |
| KR101150719B1 (en) | Ultraviolet-curable functional hard coating material | |
| CN113204063B (en) | Antistatic antireflection optical film, antistatic coating liquid, antireflection coating liquid, preparation method and application | |
| KR20140058565A (en) | Anti-reflective film and anti-reflective plate | |
| JP2002267815A (en) | Reflection preventive molded part and method for manufacturing the same | |
| CN114410157B (en) | Alignment coating liquid and application thereof | |
| JP6361506B2 (en) | (Meth) acrylic polymer, (meth) acrylic resin composition, (meth) acrylic resin sheet, (meth) acrylic resin laminate and composite sheet | |
| CN102162863B (en) | Anti-dazzle hardness film coating and use the polaroid of this hard coat film | |
| CN112980036A (en) | Optical anti-adhesion hardened film and preparation method thereof | |
| JP5306635B2 (en) | Method for producing hard coat laminate | |
| WO2019082664A1 (en) | Tactile film, method for producing same, molded article, and method for improving finger slidability | |
| JP7229833B2 (en) | Laminated film for molding | |
| CN101339258A (en) | Anti-reflection film and its manufacture method | |
| KR20130098774A (en) | Enhanced image quality composite film for electrostatic capacity type touch screen panel | |
| CN116082991A (en) | Optical film and preparation method and application thereof | |
| JPWO2017104616A1 (en) | Optical film, polarizing plate, and image display device | |
| JP2013097163A (en) | Composition for forming antistatic hard coat layer, optical film, method for manufacturing optical film, polarizing plate, and image display device | |
| KR102083140B1 (en) | Anti-reflective film of electromagnetic wave shield for touch panel | |
| JP2006330397A (en) | Anti-reflection laminated body and its manufacturing method | |
| KR20140095863A (en) | Anti-reflective film of electromagnetic wave shield for touch panel | |
| KR20120088955A (en) | Composite film for electrostatic capacity type touch screen panel | |
| JP2017111212A (en) | Optical film, polarizing plate, and image display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |