CN110531447B - Anti-glare protective film and preparation method thereof - Google Patents
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- 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
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- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/10—Homopolymers or copolymers of methacrylic acid esters
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Abstract
The invention relates to the technical field of film materials, in particular to an anti-glare protective film and a preparation method thereof. The anti-dazzle protection film comprises a protection film layer, a first adhesive layer, an anti-dazzle coating layer, a transparent plastic substrate layer, a second adhesive layer and a release film layer in sequence. The anti-dazzle coating comprises the following components in parts by weight: 6-45 wt% of waterborne polyurethane high-reactivity monomer; 6-45 wt% of waterborne polyurethane low-reactivity monomer; 45-80 wt% of nano microsphere emulsion; 1-8 wt% of photoinitiator; 0.5-5 wt% of leveling assistant; 0.5-4 wt% of defoaming agent; 2-15 wt% of organic solvent. Coating the anti-glare coating and the adhesive on two sides of the transparent plastic substrate layer, placing the transparent plastic substrate layer in an oven at the temperature of 60-130 ℃, baking for 1.5-2min, and then attaching the protective film and the release film to obtain the anti-glare protective film. The anti-glare film prepared by the invention has good anti-glare and anti-scratch performances, and the preparation process is simple and has no pollution to the environment.
Description
Technical Field
The invention relates to the technical field of film materials, in particular to an anti-glare protective film and a preparation method thereof.
Background
Human life cannot be kept, however, light which is too strong and bright and light which is too rapid in intensity change are pollution, and interference and damage to people can be caused. Glare is a visual sensation of glare that results from the mapping of the anterior rays into the eye, causing a reduction in the ability of a person to observe or extreme visual discomfort. Glare is caused by improper luminance distribution or too large a variation range of luminance, and is a serious light pollution. For example, glare reflected by a glass curtain wall of a tall building can cause visual interference to pedestrians, and normal rest of surrounding residents is influenced; glare generated by lighting decoration of road sides and a night scene lighting source can cause sudden temporary blindness and visual illusion of people, can cover the career of a driver instantly, and is easy to cause traffic accidents.
There are many potential sources of glare in the surrounding environment, such as sunlight, street lights, vehicle lights, and indoor lighting. Based on the glare problem existing in real life, the anti-glare protective film is urgently needed to be prepared, is mainly applied to indoor lighting lamps, lamp covers, window glass, automobile lamps and the like, and plays a role in preventing glare.
Disclosure of Invention
The technical problem mainly solved by the embodiment of the invention is to provide an anti-glare protective film which can effectively solve the problem of glare in real life.
In order to solve the above technical problem, the embodiments of the present invention provide the following technical solutions:
in a first aspect, an embodiment of the present invention provides an anti-glare protective film, which sequentially includes a protective film layer, a first adhesive layer, an anti-glare coating layer, a transparent plastic substrate layer, a second adhesive layer, and a release film layer, wherein the anti-glare coating layer includes the following components in parts by weight:
the nano microsphere emulsion is a nano particle emulsion with a core-shell structure, the nano particles with the core-shell structure comprise a core layer material and a shell layer material, the core layer material is hollow glass beads, and the shell layer material is one of polystyrene and polymethyl methacrylate.
Optionally, the anti-glare coating comprises the following components in parts by weight:
optionally, the particle size of the core layer material is 18-24nm, and the thickness of the shell layer material is 10-60 nm.
Optionally, the nanoparticle with the core-shell structure further includes: one of polybutyl acrylate/polystyrene microsphere, polybutyl acrylate/polymethyl methacrylate microsphere, nano silica/polymethyl methacrylate microsphere and nano silica/polystyrene microsphere;
the core layer material is composed of poly (butyl acrylate) and nano silicon dioxide, and the shell layer material is composed of polystyrene and polymethyl methacrylate.
Optionally, the thickness of the anti-glare coating is 3-4 μm, and the thickness of the plastic substrate layer is 50-100 μm.
Optionally, the first adhesive layer is an acrylic pressure-sensitive adhesive, and the thickness of the acrylic pressure-sensitive adhesive layer is 5-15 μm.
Optionally, the thickness of the protective film layer is 15-75 μm, and the thickness of the release film layer is 25-75 μm.
Optionally, the transparent plastic substrate is one of polyvinyl chloride, polycarbonate and polyethylene terephthalate.
In a second aspect, embodiments of the present invention provide a method for preparing the above-mentioned anti-glare protective film, where the preparation scheme includes the following steps:
s210, preparing an anti-glare coating;
s220, uniformly coating the anti-glare coating on the first surface of the transparent plastic substrate, baking the transparent plastic substrate in an oven at the temperature of 50-90 ℃ for 30-60S, and curing the anti-glare coating through an ultraviolet curing device to form an anti-glare coating;
s230, uniformly coating a second adhesive on the second surface of the transparent plastic substrate, and baking the second adhesive in a baking oven at the temperature of 60-130 ℃ for 1.5-2min to form a second adhesive layer;
s240, attaching a release film to the second adhesive layer;
and S250, attaching a protective film to the anti-glare coating through the first adhesive to obtain the anti-glare protective film.
Optionally, the high-reactivity waterborne polyurethane monomer and the low-reactivity waterborne polyurethane monomer are blended with the nano microsphere emulsion, then a defoaming agent, a leveling agent, an organic solvent and a photoinitiator are added, and the mixture is continuously dispersed on a high-speed dispersion machine for 20-40min and is kept stand for defoaming for 20-40min, so that the anti-glare coating is obtained.
The beneficial effects of the embodiment of the invention are as follows: different from the situation of the prior art, the anti-glare coating of the anti-glare protective film provided by the invention comprises the following components in parts by weight: 6-45 wt% of waterborne polyurethane high-reactivity monomer; 6-45 wt% of waterborne polyurethane low-reactivity monomer; 45-80 wt% of nano microsphere emulsion; 1-8 wt% of photoinitiator; 0.5-5 wt% of leveling assistant; 0.5-4 wt% of defoaming agent; 2-15 wt% of organic solvent. The anti-glare coating comprises the nano particle emulsion with the excellent anti-glare performance and the core-shell structure, and can effectively solve the problem of glare in life.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of an anti-glare protective film according to the present invention;
fig. 2 is a flow chart illustrating the preparation of an embodiment of the anti-glare protective film according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
It should be noted that, if not conflicted, the various features of the embodiments of the invention may be combined with each other within the scope of protection of the invention. Additionally, while a logical order is shown in the flowcharts, in some cases, the steps shown or described may be performed in an order different than in the flowcharts.
Referring to fig. 1, an anti-glare protective film 100 according to an embodiment of the present invention sequentially includes a protective film layer 101, a first adhesive layer 102, an anti-glare coating layer 103, a transparent plastic substrate layer 104, a second adhesive layer 105, and a release film layer 106. The protective film layer 101 serves to protect the antiglare coating 103 from scratching or abrasion. The first adhesive layer 102 is used to adhere the protective film layer 101 to the antiglare coating layer 103. When the anti-glare protective film is used, after the release film layer 106 is peeled off from the anti-glare protective film 100, the anti-glare protective film 100 is adhered to any required place such as window glass, lamp covers, automobile lamps and the like through the second adhesive layer 105, and then the protective film layer 101 and the first adhesive layer 102 are peeled off from the anti-glare coating 103, so that an anti-glare protective layer is formed on an attached object, and the anti-glare purpose is achieved. The transparent plastic substrate layer 104 used in the present invention may be made of any suitable plastic material. For example, various films such as polyvinyl chloride (PVC), Polycarbonate (PC), PET, PMMA, Polyethylene (PE), polypropylene (PP), polyvinyl alcohol (PVA), Polyether Sulfone (PEs), cellulose triacetate, and the like. The light transmittance of the transparent plastic base material layer is more than 80%, and the higher the transparency is, the better the transparency is. Additionally, in some embodiments, the transparent plastic substrate layer 104 may be surface treated in order to improve its adhesion to the antiglare coating and the second adhesive layer. For example, alkali treatment, corona treatment, plasma treatment, and surface treatment such as coating of a surfactant, silane coupling agent, and the like.
The release film used in the invention can be made of the following materials: PE, PET, OPP (o-phenylphenol), PS, PMMA, PC, BOPP (biaxially oriented polypropylene), PVC, PTFE (polytetrafluoroethylene). In some embodiments, the protective film layer 101 may be polymethyl methacrylate (PMMA) or polyethylene terephthalate (PET).
In some embodiments, the first adhesive layer 102 is a binder resin, and specific examples of the binder resin include acrylic resins, polyvinyl (polyvinyl alcohol, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, etc.), polyurethane resins, polyester resins, polyalkylene glycols, polyalkylene imines, methyl cellulose, hydroxy cellulose, and the like. These may be used alone or in combination.
The polyurethane resin may be solvent-mediated, preferably water-mediated. In order to disperse or dissolve the polyurethane resin in water, there are a forced emulsification type using an emulsifier, a self-emulsification type or a water-soluble type in which a hydrophilic group is introduced into the polyurethane resin, and the like. In particular, a self-emulsifying type polyurethane resin in which an ionic group is introduced into the skeleton of the polyurethane resin and ionomerization is performed has excellent storage stability of a liquid and water resistance, transparency, and adhesion of the obtained coating layer.
In some embodiments, the second adhesive layer is polyurethane glue, which has strong foamability, is easy to attach to an object, and is not easy to remain glue. In other embodiments, an ultraviolet absorber is further included in the polyurethane glue, so that the anti-glare protective film 100 has an ultraviolet absorbing function, thereby achieving a heat insulation effect.
The performance of the anti-glare coating layer 103 of the present invention is a key factor in determining the performance of the anti-glare protective film 100. The composition of the anti-glare coating 103 in the embodiment of the present invention mainly includes: film forming matter, nano microsphere emulsion, photoinitiator and organic solvent. In some embodiments, the aqueous polyurethane is selected as a film forming substance, and the aqueous polyurethane is a high polymer material developed by using water instead of an organic solvent as a dispersion medium, so that the material has the characteristics of high strength and wear resistance, is safe to use, is non-toxic and non-flammable, and is called as a green environment-friendly material. In some embodiments, in order to improve the coating performance and stability of the anti-glare coating, some additives are added to the formulation of the anti-glare coating. Such as defoaming agent, leveling agent and dispersing agent, wherein the defoaming agent can be BYK088 of Germany BYK company, the leveling agent can be BYK373 of Germany BYK company, and the dispersing agent can be ATU of Germany BYK company. The solvent in the present invention can be selected from organic solvents such as: toluene, ethyl acetate, acetone, butanone, ethanol, isopropanol, and the like. The anti-glare coating comprises the following components in parts by weight:
specifically, in other embodiments, the anti-glare coating comprises the following components in parts by weight:
the nano microsphere emulsion is a nano particle emulsion with a core-shell structure, the material of the core layer of the nano particle is hollow glass microspheres, and the material of the shell layer of the nano particle is one of polystyrene and polymethyl methacrylate. In the embodiment of the invention, the grain diameter of the core layer material is 18-24nm, and the thickness of the shell layer material is 10-60 nm.
The nanoparticles in the nanoparticle emulsions used in the present invention may be inorganic nanometal oxides such as nanosilica (SiO) 2 ) Nano tin dioxide, nano zirconium dioxide, nano antimony oxide or nano titanium oxide. The nano microsphere emulsion can also be polymer micro powder dispersion liquid, and the polymer micro powder can be Polystyrene (PS) micro powder, polyvinyl chloride (PVC) micro powder, polymethyl methacrylate (PMMA) micro powder or Polycarbonate (PC) micro powder. The glare modifier can also be a nano-polymer microsphere emulsion, such as a PS emulsion, a PMMA emulsion. In some embodiments, the polymeric microspheres are core-shell structures, such as SiO 2 PMMA microsphere, SiO 2 a/PS microsphere, a PBA/PS microsphere or a PBA/PMMA microsphere.
The inorganic nano particles have irregular surface shapes, are coated on the base material to form a uniform coating, and when light rays irradiate on the particles, part of the light rays are refracted to different directions by the irregular surfaces, so that the direct irradiation of the light rays is reduced; the organic polymer microspheres have a spherical state, and the polymer microspheres are transparent. The polymer microsphere can allow light to pass through, but because the refractive index of the polymer is different from that of the coating medium, when the light passes through, the surface of the polymer microsphere is equivalent to a small lens, so that part of the light is scattered, the direct irradiation of the light is reduced, and the anti-glare effect is achieved.
Referring to fig. 2, an embodiment of the present invention further provides a method for preparing an anti-glare protective film, including the following steps:
s210, preparing the waterborne polyurethane anti-glare coating.
In the embodiment, after the waterborne polyurethane high-reactivity monomer, the waterborne polyurethane low-reactivity monomer, the photoinitiator and the solvent are uniformly mixed, the nano-microsphere emulsion, the leveling assistant and the defoamer are added, and the mixture is stirred and uniformly dispersed to obtain the waterborne polyurethane anti-glare coating.
In some embodiments, 6-45 wt% of waterborne polyurethane high-reactivity monomer and 6-45 wt% of waterborne polyurethane low-reactivity monomer are mixed with 45-80 wt% of nano-microsphere emulsion, then 0.5-4 wt% of defoaming agent, 0.5-5 wt% of leveling assistant, 2-15 wt% of organic solvent and 1-8 wt% of photoinitiator are added, and the mixture is continuously dispersed on a high-speed dispersion machine for 20-40min and is kept stand for defoaming for 20-40min to prepare the anti-glare coating.
Specifically, in other embodiments, 24 wt% of the waterborne polyurethane high-reactivity monomer, 20 wt% of the waterborne polyurethane low-reactivity monomer and 45 wt% of the nano-microsphere emulsion are blended, 1 wt% of the defoaming agent, 1 wt% of the leveling agent, 4 wt% of the organic solvent and 5 wt% of the photoinitiator are added, and the mixture is continuously dispersed on a high-speed dispersion machine for 20-40min, and is subjected to standing defoaming for 20-40min, so as to prepare the anti-glare coating.
SiO with core-shell structure 2 The preparation method of the/PMMA, PBA/PS and hollow glass microsphere nano-microsphere emulsion is described as an example:
(1) preparation of SiO 2 The PMMA microsphere method comprises the following steps:
a. treatment of SiO with silane coupling agent 2 ；
Mixing nano SiO 2 Vacuum drying the powder at 110 ℃ for 12-24h at 100- 2 Powder of nano SiO 2 The mass ratio of the powder to the silane coupling agent is 5:1-5: 2.
b. Preparation of SiO 2 Grafting PMMA nano microspheres.
Coupling agent treated nano SiO 2 Mixing with deionized water, wherein the mass ratio of the coupling agent to the deionized water is 1:180-1:200, ultrasonically dispersing for 2-3h, pre-emulsifying for 0.5-1h at 80 ℃ by adding an emulsifier and an auxiliary emulsifier while stirring, adding a mixed solution of a methyl methacrylate monomer and a crosslinking agent, dropwise adding an aqueous solution of ammonium persulfate nitrate, and cooling to obtain SiO 2 PMMA microspheres. Coupling agent treated nano SiO 2 The mass ratio of the monomer to the methyl methacrylate monomer is 1:14-1: 17.
The silane coupling agent has two functional groups of organophilic group and inophilic group in its molecule, so that it can be used as 'molecular bridge' for connecting inorganic material and organic material to make inorganic material SiO have good adhesion 2 Two materials with different properties are connected with the organic polymer PMMA to form a combined layer of inorganic phase-silane coupling agent-organic phase, thereby increasing SiO 2 And PMMA.
(2) The preparation method of the crosslinked PBA/PS nano-microsphere comprises the following steps:
firstly, adding a condensation compound of macromolecular alkylphenol and ethylene oxide and lauryl sodium sulfate in a mass ratio of 1:5 into distilled water for pre-emulsification for 0.5-1h, then dropwise adding a mixed solution of ammonium persulfate and distilled water, dropwise adding a mixture of BA and a crosslinking agent in a mass ratio of 1:1, reacting for 2h at 180 ℃, adding an ammonium persulfate aqueous solution, slowly dropwise adding a mixture of an acrylic monomer (methacrylic acid monomer) and a crosslinking agent in a mass ratio of 1:1, and preserving heat for 1h after dropwise adding is completed to obtain the crosslinked PBA/PS nano microspheres. Wherein the mass ratio of the PA monomer to the styrene monomer is 1: 3.
(3) The preparation of the hollow glass bead/polystyrene nano microsphere comprises the following steps:
a. treating hollow glass beads by using a silane coupling agent;
putting hollow glass as a main material into alcohol, ultrasonically cleaning for 30-60min, filtering, vacuum-drying hollow glass microspheres for 12-24h at the temperature of 100-.
b. Preparing hollow glass micro-bead/polystyrene nano-microsphere.
Mixing the hollow glass microspheres treated by the coupling agent with deionized water, ultrasonically dispersing for 2 hours, then adding an emulsifier and an auxiliary emulsifier while stirring, pre-emulsifying for 1.5 hours at the temperature of 80 ℃, adding a mixed solution of a styrene monomer and a crosslinking agent, simultaneously dropwise adding an aqueous solution of ammonium persulfate nitrate, after dropwise adding, preserving heat for 1-2 hours, and cooling to obtain the hollow glass microspheres/polystyrene nano microspheres. Wherein the mass ratio of the hollow glass beads to the styrene monomer is 0.2: 15.
S220, coating the water-based polyurethane anti-glare coating on the first surface of the transparent plastic substrate.
As a method for applying the water-based polyurethane antiglare coating onto a transparent plastic substrate, a coating method such as air knife coating, blade coating, bar coating, blade coating, extrusion coating, dip coating, reverse roll coating, transfer roll coating, gravure coating, roll lick coating, cast coating, spray coating, curtain coating, calender coating, or extrusion coating can be used.
The method for applying the aqueous polyurethane anti-glare coating is described below by taking a anilox roll coating method as an example. The anti-glare coating prepared in step S210 is pumped into a glue tank through a supply system of a coater. Uniformly coating the coating on the transparent plastic base material through a 50-100mm anilox roller, and sending the coated transparent plastic base material into six sections of ovens for pre-baking under the action of tension, wherein the temperature of each section of oven is set as follows: at 50 deg.C, 60 deg.C, 70 deg.C, 90 deg.C, 70 deg.C, after the solvent in the coating is volatilized, the anti-glare coating is cured by ultraviolet irradiation through an ultraviolet curing device, so that the anti-glare coating is firmly attached to the transparent plastic substrate, and the thickness of the anti-glare coating layer is controlled at 3-4 μm. Wherein the number of the lines of the anilox roller is 60-200LPI, and the ultraviolet energy of the ultraviolet curing device is 200- 2 。
S230, coating the second adhesive on the second surface of the transparent plastic substrate to form a second adhesive layer.
Transparent plastic substrate film is by supplying a roll unit to convey in succession, pass through feed system with second viscose agent polyurethane glue, the suction is glued in the groove, reuse feedway with the horizontal even drippage of second viscose agent drench in the crack of reticulation roller, form second viscose agent hydrops, under the roll-down of reticulation roller, second viscose agent and transparent plastic film fully contact, evenly coat the second viscose agent on transparent plastic substrate, send the transparent plastic substrate that coats into 6 sections ovens and prebake 1.5-2min, wherein, each section oven temperature sets for as follows: 60 ℃, 80 ℃, 120 ℃, 130 ℃ and 100 ℃.
In some embodiments, the second surface of the transparent plastic substrate is corona treated prior to coating. Under the action of strong electric field, various plasmas generated by corona treatment device can accelerate and impact the surface of transparent plastic base material to induce the chemical bonds of the surface molecules of the plastic base material to break and degrade, and the surface roughness is added. During corona discharge, a large amount of ozone is also generated. In one aspect, ozone is a strong oxidizer that oxidizes molecules on the surface of the plastic to produce carbonyl compounds, peroxy compounds, and the like. On the other hand, the corona treatment can also remove oil stain, water vapor, dust and dirt and the like on the surface of the plastic substrate, and the wettability and the adhesion performance of the surface of the plastic substrate subjected to the corona treatment are obviously improved.
S240, attaching the release film to the second adhesive layer.
The release film in this embodiment is an organosilicon release film. In some embodiments, in order to increase the release force of the silicone release film, the silicone release film is subjected to plasma treatment, fluorine coating treatment or silicon coating treatment, and then the release agent is coated on the surface of the plastic film, so that the release agent shows extremely light and stable release force for various organic pressure-sensitive adhesives.
And S250, attaching the protective film to the anti-glare coating through the first adhesive to obtain the anti-glare protective film.
In this example, a protective film coated with a first adhesive agent on the surface was attached to an antiglare coating, and defoaming was performed using a bubble removal device to remove bubbles generated during attachment, thereby obtaining an antiglare protective film.
The anti-glare protective film disclosed by the embodiment of the invention has excellent anti-glare performance, can effectively solve the problem of light pollution in life, and can effectively solve the problems that the anti-glare protective film is easy to scratch and wear because the protective film layer is arranged on the surface of the anti-glare protective film. The anti-dazzle protective film in the embodiment of the invention has strong bubble removal performance, is easy to adhere to an object and has no residual glue. The ultraviolet absorbent added in the second adhesive can enable the anti-dazzle protective film to have the function of absorbing ultraviolet rays and can play a good heat insulation role.
It should be understood, however, that the description herein and the accompanying drawings illustrate preferred embodiments of the present invention, but the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for the purpose of providing a more thorough understanding of the present disclosure. Moreover, the above technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention described in the specification; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the scope of the appended claims.
Claims (9)
1. The utility model provides an anti-dazzle protection film, its characterized in that, anti-dazzle protection film includes protection rete, first viscose layer, anti-dazzle coating, transparent plastic substrate layer, second viscose layer in proper order and leaves the type rete, wherein, the light transmittance of transparent plastic substrate layer is more than 80%, the second viscose layer is polyurethane glue, the polyurethane glue includes ultraviolet absorber, each component is according to parts by weight in the anti-dazzle coating:
the nano microsphere emulsion is a nano particle emulsion with a core-shell structure, the nano particles with the core-shell structure comprise a core layer material and a shell layer material, the core layer material is hollow glass microspheres, the shell layer material is one of polystyrene and polymethyl methacrylate, the particle size of the core layer material is 18-24nm, and the thickness of the shell layer material is 10-60 nm.
2. The protective antiglare film of claim 1, wherein the antiglare coating layer comprises in weight units:
3. the protective antiglare film of claim 2, wherein the core-shell structured nanoparticles further comprise: one of polybutyl acrylate/polystyrene microsphere, polybutyl acrylate/polymethyl methacrylate microsphere, nano silica/polymethyl methacrylate microsphere and nano silica/polystyrene microsphere;
the core layer material is composed of poly (butyl acrylate) and nano silicon dioxide, and the shell layer material is composed of polystyrene and polymethyl methacrylate.
4. The protective antiglare film of claim 3, wherein the antiglare coating layer has a thickness of 3 to 4 μ ι η and the plastic substrate layer has a thickness of 50 to 100 μ ι η.
5. The protective antiglare film of claim 4, wherein the first adhesive layer is an acrylic pressure sensitive adhesive having a thickness of 5 to 15 μm.
6. The protective antiglare film of claim 5, wherein the protective film layer has a thickness of 15 to 75 μm and the release film layer has a thickness of 25 to 75 μm.
7. The protective antiglare film of claim 6, wherein the transparent plastic substrate is one of polyvinyl chloride, polycarbonate, and polyethylene terephthalate.
8. A method for producing an anti-glare protective film for the production of the anti-glare protective film according to any one of claims 1 to 7, comprising the steps of:
s210, preparing an anti-glare coating;
s220, uniformly coating the anti-glare coating on the first surface of the transparent plastic substrate, baking the transparent plastic substrate in an oven at the temperature of 50-90 ℃ for 30-60S, and curing the anti-glare coating through an ultraviolet curing device to form an anti-glare coating;
s230, uniformly coating a second adhesive on the second surface of the transparent plastic substrate, and baking the second adhesive in a baking oven at the temperature of 60-130 ℃ for 1.5-2min to form a second adhesive layer;
s240, attaching a release film to the second adhesive layer;
and S250, attaching a protective film to the anti-glare coating through the first adhesive to obtain the anti-glare protective film.
9. The method of preparing the anti-glare protective film according to claim 8, wherein the preparing the anti-glare coating comprises the steps of:
and blending the high-reactivity monomer and the low-reactivity monomer of the waterborne polyurethane with the nano microsphere emulsion, adding a defoaming agent, a flatting agent, an organic solvent and a photoinitiator, continuously dispersing for 20-40min on a high-speed dispersion machine, and standing and defoaming for 20-40min to obtain the anti-glare coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910756551.3A CN110531447B (en) | 2019-08-16 | 2019-08-16 | Anti-glare protective film and preparation method thereof |
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| CN116355385B (en) * | 2023-04-17 | 2023-09-12 | 苏州易昇光学材料股份有限公司 | Thixotropic buffering energy-absorbing GPU film |
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| CN103171230A (en) * | 2011-12-21 | 2013-06-26 | 鼎力光学有限公司 | Manufacturing method of functional screen protector |
| CN202610165U (en) * | 2012-06-06 | 2012-12-19 | 太湖金张科技有限公司 | Antiglare protection film special for external screen |
| CN105038570A (en) * | 2015-07-14 | 2015-11-11 | 深圳市汇万川塑胶薄膜有限公司 | Highly scratch-resistant anti-dazzle ultraviolet-curable coating and application method therefor |
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