CN114634645A - Preparation method of peep-proof anti-dazzle light resistance blue light protection film - Google Patents
Preparation method of peep-proof anti-dazzle light resistance blue light protection film Download PDFInfo
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- CN114634645A CN114634645A CN202210399346.8A CN202210399346A CN114634645A CN 114634645 A CN114634645 A CN 114634645A CN 202210399346 A CN202210399346 A CN 202210399346A CN 114634645 A CN114634645 A CN 114634645A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000002981 blocking agent Substances 0.000 claims abstract description 31
- 208000008918 voyeurism Diseases 0.000 claims abstract description 28
- 230000000903 blocking effect Effects 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 239000012528 membrane Substances 0.000 claims abstract description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 12
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims description 36
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 30
- 229920000515 polycarbonate Polymers 0.000 claims description 27
- 239000004417 polycarbonate Substances 0.000 claims description 27
- 239000003795 chemical substances by application Substances 0.000 claims description 25
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 20
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 20
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 20
- 239000011259 mixed solution Substances 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 13
- 150000002391 heterocyclic compounds Chemical class 0.000 claims description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000003822 epoxy resin Substances 0.000 claims description 10
- 229920000647 polyepoxide Polymers 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 125000005605 benzo group Chemical group 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 229920002545 silicone oil Polymers 0.000 claims description 7
- ROGBPNDEFHPGSY-UHFFFAOYSA-N 2-phenylethynylsilicon Chemical compound [Si]C#CC1=CC=CC=C1 ROGBPNDEFHPGSY-UHFFFAOYSA-N 0.000 claims description 5
- 239000004925 Acrylic resin Substances 0.000 claims description 5
- 229920000178 Acrylic resin Polymers 0.000 claims description 5
- XWASSENKVFJRFR-UHFFFAOYSA-N [SiH4].C1(=CC=CC=C1)C#C Chemical compound [SiH4].C1(=CC=CC=C1)C#C XWASSENKVFJRFR-UHFFFAOYSA-N 0.000 claims description 5
- 150000001412 amines Chemical class 0.000 claims description 5
- 150000008064 anhydrides Chemical group 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000005470 impregnation Methods 0.000 claims description 5
- 229920005749 polyurethane resin Polymers 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 238000002390 rotary evaporation Methods 0.000 claims description 5
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 74
- 229920005989 resin Polymers 0.000 description 23
- 239000011347 resin Substances 0.000 description 23
- 239000000945 filler Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 12
- 238000011049 filling Methods 0.000 description 8
- 239000002904 solvent Substances 0.000 description 7
- 229920005992 thermoplastic resin Polymers 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000006229 carbon black Substances 0.000 description 3
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 229940083037 simethicone Drugs 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000000411 transmission spectrum Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/42—Chemical after-treatment
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
- C08J7/16—Chemical modification with polymerisable compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2469/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
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Abstract
The invention discloses a preparation method of an anti-peeping and anti-dazzle light resistance blue light protection film, which comprises the following steps of: preparing an anti-dazzle light resistance blue-light PET layer: firstly, putting PET master batches into an oven, vacuumizing by a vacuum pump, baking for 24 hours at the temperature of 120-; thereby obtaining a PET layer containing a blue light blocking agent; adding the PET layer containing the blue light blocking agent into the membrane liquid, then adding lauroyl peroxide, introducing nitrogen to discharge air, and reacting for 1-3h to obtain the anti-dazzle light blocking blue light PET layer; step 2: the anti-peeping anti-dazzle light resistance blue light protection film has blue light blocking and anti-dazzle performances.
Description
Technical Field
The invention relates to the technical field of protective films, in particular to a preparation method of a peep-proof anti-dazzle light resistance blue light protective film.
Background
Chinese patent CN103818074B discloses a preparation method of a peep-proof membrane, which comprises the following steps: 1) carrying out UV resin coating molding on the PET layer to obtain a first transparent resin layer covered on the PET layer and a plurality of rows of protruding units uniformly distributed on the first transparent resin layer; 2) wet coating a black or gray filling material in the spaces between the protrusion units; 3) removing a surface layer formed on the top of the peep-proof film by black or gray filling materials; 4) baking: volatilizing the solvent in the filling material, depositing the solid components in the filling material at the bottom of the gap, and attaching a thin layer to the side surface of the gap; 5) filling a second transparent resin between the protruding units, wherein the refractive index of the second transparent resin is lower than that of the first transparent resin layer, and the second transparent resin forms a protective layer on the top of the peep-proof film;
when the existing protective film is used for solving the problem of blue light, processes such as electroplating and the like are adopted, and a layer of blue light resistant film is plated on the surface of a base material, but the manufacturing is complicated, the product is easy to have glare, or a blue light resistant material is added into the base material, and the blue light resistant material has the problem that the blue light resistant material cannot bear high temperature in the production process.
Disclosure of Invention
The invention aims to solve the problems of the background technology and provides a preparation method of an anti-peeping and anti-dazzle light resistance blue light protection film.
The purpose of the invention can be realized by the following technical scheme:
a preparation method of an anti-peeping and anti-dazzle light resistance blue light protection film comprises the following steps:
step 1: preparing an anti-dazzle light resistance blue light PET layer: firstly, putting PET master batches into an oven, vacuumizing by a vacuum pump, baking for 24 hours at the temperature of 120-; thereby obtaining a PET layer containing a blue light blocking agent;
adding the PET layer containing the blue light blocking agent into the membrane liquid, then adding lauroyl peroxide, introducing nitrogen to discharge air, and reacting for 1-3h to obtain the anti-dazzle light blocking blue light PET layer;
step 2: and coating a layer of peep-proof film on the anti-dazzle light resistance blue light PET layer to obtain the anti-peep anti-dazzle light resistance blue light protection film.
As a further scheme of the invention: the membrane liquid is prepared by the following process:
mixing butadiene, styrene and acrylate, adding ethylene glycol, stirring for 15min to obtain a mixed solution, adding the anti-glare particles, the dimethyl silicone oil and the mixed solution into deionized water, and adding KH550 into the deionized water by ultrasonic dispersion to obtain a membrane liquid.
As a further scheme of the invention: the weight ratio of the anti-dazzle particles, the dimethyl silicone oil, the mixed liquid and the KH550 is 5-10: 5-10: 40-80: 1-5.
As a further scheme of the invention: the mixed solution comprises the following raw materials in parts by weight: 2-5 parts of butadiene, 10-15 parts of styrene, 10-20 parts of acrylate and 25-30 parts of ethylene glycol.
As a further scheme of the invention: the anti-glare particles include one or more of acrylic resin particles, polyurethane resin particles, and epoxy resin particles.
As a further scheme of the invention: the preparation process of the blue light blocking agent comprises the following steps:
step 11: uniformly mixing polycarbonate with benzo six-membered heterocyclic compound and curing agent, dissolving in acetone, stirring at 30-50 ℃ for 30-80min, adding phenylacetylene silane, and continuously stirring for 10min to obtain a polycarbonate system;
step 12: vacuumizing to remove bubbles in the epoxy resin system, and then performing rotary evaporation to remove acetone;
step 13: and (3) introducing the polycarbonate system into a mold cavity, vacuumizing for 15-20min in a vacuum-pressure impregnation furnace, placing the mold in an oven, and cooling to room temperature to obtain the blue light blocking agent.
As a further scheme of the invention: the mass ratio of the polycarbonate to the benzo six-membered heterocyclic compound to the curing agent to the phenylethynyl silane is 50-100:20-120:2-6: 10-60.
As a further scheme of the invention: the curing agent is an anhydride curing agent or an amine curing agent.
As a further scheme of the invention: the curing parameters in the oven are 80 ℃/1h, 100 ℃/2h, 140 ℃/1h and 160 ℃/1 h.
The invention has the beneficial effects that:
polycarbonate and benzo hexatomic heterocyclic compound form the compound of the island-in-the-sea structure, benzo hexatomic heterocyclic compound can be fully mixed with polycarbonate, the curing environment of the system is improved, and in the course of curing, there is no micromolecule to discharge, the benzene ring structure gives the excellent heat resistance to the resin system, the function of improving the heat performance is mentioned in the whole system; thereby improving the heat resistance of the blue light blocking agent; the modified polycarbonate is used as a blue light blocking agent and has the effect of blocking blue light on the protective film, so that the protective film prepared from the modified polycarbonate has high stability;
and the peep-proof layer can effectively increase the transmittance of light in the visible region, the visual effect is better, the user experience is more comfortable, and the peep-proof function outside the visible region has the same effect as the traditional peep-proof film.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention relates to a preparation method of an anti-peeping anti-dazzle light resistance blue light protection film, which comprises an anti-dazzle light resistance blue light PET layer and an anti-peeping layer, wherein the anti-peeping layer is arranged on the surface of the anti-dazzle light resistance blue light PET layer; wherein, the anti-dazzle photoresistance blue-light PET is synthesized by double-layer thermoplastic resin;
the double-layer thermoplastic resin comprises a PET layer containing a blue light blocking agent and a film layer containing anti-glare particles, and the thickness ratio of the PET layer containing the blue light blocking agent to the film layer containing the anti-glare particles is 10: 0.1.
Example 2
The invention relates to a preparation method of an anti-peeping anti-dazzle light resistance blue light protection film, which comprises an anti-dazzle light resistance blue light PET layer and an anti-peeping layer, wherein the anti-peeping layer is arranged on the surface of the anti-dazzle light resistance blue light PET layer; wherein, the anti-dazzle photoresistance blue-light PET is synthesized by double-layer thermoplastic resin;
the double-layer thermoplastic resin comprises a PET layer containing a blue light blocking agent and a film layer containing anti-glare particles, and the thickness ratio of the PET layer containing the blue light blocking agent to the film layer containing the anti-glare particles is 12: 0.15.
Example 3
The invention relates to a preparation method of an anti-peeping anti-dazzle light resistance blue light protection film, which comprises an anti-dazzle light resistance blue light PET layer and an anti-peeping layer, wherein the anti-peeping layer is arranged on the surface of the anti-dazzle light resistance blue light PET layer; wherein, the anti-dazzle photoresistance blue-light PET is synthesized by double-layer thermoplastic resin;
the double-layer thermoplastic resin comprises a PET layer containing a blue light blocking agent and a film layer containing anti-glare particles, and the thickness ratio of the PET layer containing the blue light blocking agent to the film layer containing the anti-glare particles is 20: 0.2.
Example 4
The invention relates to a preparation method of an anti-peeping and anti-dazzle light resistance blue light protection film, which comprises the following steps:
step 1: preparing an anti-dazzle light resistance blue-light PET layer: putting PET master batches into an oven, vacuumizing the oven through a vacuum pump, baking the PET master batches for 24 hours at the temperature of 120 ℃ to remove water, uniformly mixing the PET master batches with a blue light blocking agent, and then ejecting a test piece by a 50T ejection forming machine; thereby obtaining a PET layer containing a blue light blocking agent;
mixing butadiene, styrene and acrylate, adding ethylene glycol, magnetically stirring for 15min to obtain a mixed solution, adding the anti-glare particles, the simethicone and the mixed solution into deionized water, performing ultrasonic dispersion, and adding KH550 to obtain a membrane solution; the weight ratio of the anti-dazzle particles, the dimethyl silicone oil, the mixed liquid and the KH550 is 5: 5: 40: 1; the mixed solution comprises the following raw materials in parts by weight: 2 parts of butadiene, 10 parts of styrene, 10 parts of acrylate and 25 parts of ethylene glycol;
adding the PET layer containing the blue light blocking agent into the membrane liquid, then adding lauroyl peroxide, introducing nitrogen to discharge air, and reacting for 1h to obtain an anti-dazzle light blocking blue light PET layer;
wherein the blue light blocker comprises a modified polycarbonate material; the anti-dazzle particles comprise one or more of acrylic resin particles, polyurethane resin particles and epoxy resin particles;
the preparation process of the blue light blocking agent comprises the following steps:
step 11: uniformly mixing polycarbonate with a benzo six-membered heterocyclic compound and a curing agent, dissolving in acetone, stirring at 30 ℃ for 30min, adding phenylacetylene silane, and continuously stirring for 10min to obtain a polycarbonate system;
wherein the mass ratio of the polycarbonate to the benzo-hexatomic heterocyclic compound to the curing agent to the phenylethynyl silane is 50:20:2: 10; the curing agent is an anhydride curing agent or an amine curing agent;
step 12: vacuumizing to remove bubbles in the epoxy resin system, and then performing rotary evaporation to remove acetone;
step 13: introducing a polycarbonate system into a mold cavity, vacuumizing for 15min in a vacuum-pressure impregnation furnace, and placing the mold in a baking oven, wherein the curing parameters are 80 ℃/1h, 100 ℃/2h, 140 ℃/1h and 160 ℃/1 h; cooling to room temperature to obtain a blue light blocking agent;
and 2, step: coating a UV resin layer on the anti-dazzle light resistance blue-light PET layer, and uniformly and respectively arranging the protruding units on the UV resin layer, wherein the protruding units are of a trapezoidal structure;
wet coating a filler including nano ink, carbon black and a solvent in the spaces between the protrusion units; so that the filler forms a thin layer on the outermost side, and then the thin layer on the surface of the convex unit is removed; baking to volatilize the solvent in the filler, depositing the solid components in the filler at the bottom of the gap, and attaching an opaque wrapping layer to the side surface of the gap; and filling transparent resin in the cavity between the convex units, wherein the refractive index of the transparent resin is lower than that of the UV resin, so that the peeping-proof and anti-dazzle light resistance blue light protection film is obtained.
Example 5
The invention relates to a preparation method of an anti-peeping and anti-dazzle light resistance blue light protection film, which comprises the following steps:
step 1: preparing an anti-dazzle light resistance blue-light PET layer: firstly, putting PET master batches into an oven, vacuumizing the oven through a vacuum pump, baking the PET master batches for 24 hours at 135 ℃ to remove moisture, uniformly mixing the PET master batches with a blue light blocking agent, and then ejecting a test piece by a 50T ejection forming machine; a PET layer thus containing a blue light blocker;
mixing butadiene, styrene and acrylate, adding ethylene glycol, magnetically stirring for 15min to obtain a mixed solution, adding the anti-glare particles, the simethicone and the mixed solution into deionized water, performing ultrasonic dispersion, and adding KH550 to obtain a membrane solution; the weight ratio of the anti-dazzle particles, the dimethyl silicone oil, the mixed liquid and the KH550 is 8: 8: 60: 3; the mixed solution comprises the following raw materials in parts by weight: 3 parts of butadiene, 12 parts of styrene, 15 parts of acrylate and 28 parts of ethylene glycol;
adding the PET layer containing the blue light blocking agent into the membrane liquid, then adding lauroyl peroxide, introducing nitrogen to discharge air, and reacting for 1-3h to obtain the anti-dazzle light blocking blue light PET layer;
wherein the blue light blocker comprises a modified polycarbonate material; the anti-dazzle particles comprise one or more of acrylic resin particles, polyurethane resin particles and epoxy resin particles;
the preparation process of the blue light blocking agent comprises the following steps:
step 11: uniformly mixing polycarbonate with a benzo six-membered heterocyclic compound and a curing agent, dissolving in acetone, stirring at 40 ℃ for 50min, adding phenylacetylene silane, and continuously stirring for 10min to obtain a polycarbonate system;
wherein the mass ratio of the polycarbonate to the benzo-hexatomic heterocyclic compound to the curing agent to the phenylethynyl silane is 80:70:4: 30; the curing agent is an anhydride curing agent or an amine curing agent;
step 12: vacuumizing to remove bubbles in the epoxy resin system, and then performing rotary evaporation to remove acetone;
step 13: introducing the polycarbonate system into a mold cavity, vacuumizing in a vacuum-pressure impregnation furnace for 18min, placing the mold in a baking oven, and setting the curing parameters of 80 ℃/1h, 100 ℃/2h, 140 ℃/1h and 160 ℃/1 h; cooling to room temperature to obtain a blue light blocking agent;
step 2: coating a UV resin layer on the anti-dazzle light resistance blue-light PET layer, and uniformly and respectively arranging the protruding units on the UV resin layer, wherein the protruding units are of a trapezoidal structure;
wet coating a filler including nano ink, carbon black and a solvent in the spaces between the protrusion units; so that the filler forms a thin layer on the outermost side, and then the thin layer on the surface of the convex unit is removed; baking to volatilize the solvent in the filler, depositing the solid components in the filler at the bottom of the gap, and attaching an opaque wrapping layer to the side surface of the gap; and filling transparent resin in the cavity between the convex units, wherein the refractive index of the transparent resin is lower than that of the UV resin, so that the peeping-proof and anti-dazzle light resistance blue light protection film is obtained.
Example 6
The invention relates to a preparation method of an anti-peeping and anti-dazzle light resistance blue light protection film, which comprises the following steps:
step 1: preparing an anti-dazzle light resistance blue-light PET layer: putting PET master batches into an oven, vacuumizing by a vacuum pump, baking for 24 hours at the temperature of 150 ℃ to remove water, uniformly mixing the PET master batches with a blue light blocking agent, and then ejecting a test piece by a 50T ejection forming machine; a PET layer containing a blue light blocker;
mixing butadiene, styrene and acrylate, adding ethylene glycol, magnetically stirring for 15min to obtain a mixed solution, adding the anti-glare particles, the simethicone and the mixed solution into deionized water, performing ultrasonic dispersion, and adding KH550 to obtain a membrane solution; the weight ratio of the anti-dazzle particles, the dimethyl silicone oil, the mixed liquid and the KH550 is (10): 10: 80: 5; the mixed solution comprises the following raw materials in parts by weight: 5 parts of butadiene, 15 parts of styrene, 20 parts of acrylate and 30 parts of ethylene glycol;
adding the PET layer containing the blue light blocking agent into the membrane liquid, then adding lauroyl peroxide, introducing nitrogen to discharge air, and reacting for 1-3h to obtain the anti-dazzle light blocking blue light PET layer;
wherein the blue light blocker comprises a modified polycarbonate material; the anti-dazzle particles comprise one or more of acrylic resin particles, polyurethane resin particles and epoxy resin particles;
the preparation process of the blue light blocking agent comprises the following steps:
step 11: uniformly mixing polycarbonate with a benzo six-membered heterocyclic compound and a curing agent, dissolving in acetone, stirring at 50 ℃ for 80min, adding phenylacetylene silane, and continuously stirring for 10min to obtain a polycarbonate system;
wherein the mass ratio of the polycarbonate to the benzo-hexa-heterocyclic compound to the curing agent to the phenylethynyl silane is 100:120:6: 60; the curing agent is an anhydride curing agent or an amine curing agent;
step 12: vacuumizing to remove bubbles in the epoxy resin system, and then performing rotary evaporation to remove acetone;
step 13: introducing a polycarbonate system into a mold cavity, vacuumizing in a vacuum-pressure impregnation furnace for 20min, placing the mold in a baking oven, and setting the curing parameters of 80 ℃/1h, 100 ℃/2h, 140 ℃/1h and 160 ℃/1 h; cooling to room temperature to obtain a blue light blocking agent;
and 2, step: coating a UV resin layer on the anti-dazzle light resistance blue-light PET layer, and uniformly and respectively arranging the protruding units on the UV resin layer, wherein the protruding units are of a trapezoidal structure;
wet coating a filler including nano ink, carbon black and a solvent in the spaces between the protrusion units; so that the filler forms a thin layer on the outermost side, and then the thin layer on the surface of the convex unit is removed; baking to volatilize the solvent in the filler, depositing the solid components in the filler at the bottom of the gap, and attaching an opaque wrapping layer to the side surface of the gap; and filling transparent resin in the cavity between the convex units, wherein the refractive index of the transparent resin is lower than that of the UV resin, so that the peeping-proof and anti-dazzle light resistance blue light protection film is obtained.
Comparative example 1
The comparative example used a privacy film provided in chinese patent No. CN 103818074B;
performing blue light blocking performance test and anti-glare performance test on the protective films prepared in examples 4-6 and the anti-peeping film obtained in comparative example 1, wherein the blue light blocking performance test uses a UV-vis spectrometer to measure a transmission spectrum, and directly observing the blocking capability of a 400nm wave band region; wherein lower penetration values indicate greater barrier capacity; and testing the anti-glare performance by a glossiness measuring instrument and a haze measuring instrument; see table below:
| penetration T (%) | Degree of gloss | Haze (%) | |
| Example 4 | 1.38 | 116 | 70 |
| Example 5 | 1.56 | 129 | 73 |
| Example 6 | 1.74 | 138 | 81 |
| Comparative example 1 | 59.11 | 80 | 54 |
As can be seen from the above table, the protective films prepared in examples 4 to 6 of the present invention have blue light blocking and anti-glare properties. While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (9)
1. The preparation method of the anti-peeping and anti-dazzle light resistance blue light protection film is characterized by comprising the following steps of:
step 1: preparing an anti-dazzle light resistance blue-light PET layer: firstly, putting PET master batches into an oven, vacuumizing by a vacuum pump, baking for 24 hours at the temperature of 120-; thereby obtaining a PET layer containing a blue light blocking agent;
adding the PET layer containing the blue light blocking agent into the membrane liquid, then adding lauroyl peroxide, introducing nitrogen to discharge air, and reacting for 1-3h to obtain the anti-dazzle light blocking blue light PET layer;
step 2: and coating a layer of peep-proof film on the anti-dazzle light resistance blue light PET layer to obtain the anti-peep anti-dazzle light resistance blue light protection film.
2. The preparation method of the anti-peeping and anti-dazzle light blocking blue light protection film according to claim 1, wherein the film liquid is prepared by the following process:
mixing butadiene, styrene and acrylate, adding ethylene glycol, stirring for 15min to obtain a mixed solution, adding the anti-glare particles, the dimethyl silicone oil and the mixed solution into deionized water, and adding KH550 into the deionized water by ultrasonic dispersion to obtain a membrane liquid.
3. The method for preparing the anti-peeping and anti-dazzle light blocking blue light protection film according to claim 2, wherein the weight ratio of the anti-dazzle particles, the dimethyl silicone oil, the mixed solution and the KH550 is 5-10: 5-10: 40-80: 1-5.
4. The preparation method of the peep-proof and anti-dazzle light blocking blue light protection film according to claim 2, wherein the mixed solution comprises the following raw materials in parts by weight: 2-5 parts of butadiene, 10-15 parts of styrene, 10-20 parts of acrylate and 25-30 parts of ethylene glycol.
5. The method for preparing a privacy-peeping-preventing and anti-glare blue light-blocking protective film according to claim 2, wherein the anti-glare particles comprise one or more of acrylic resin particles, polyurethane resin particles and epoxy resin particles.
6. The preparation method of the anti-peeping and anti-dazzle light resistance blue light protection film according to claim 1, wherein the preparation process of the blue light blocking agent comprises the following steps:
step 11: uniformly mixing polycarbonate with benzo six-membered heterocyclic compound and curing agent, dissolving in acetone, stirring at 30-50 ℃ for 30-80min, adding phenylacetylene silane, and continuously stirring for 10min to obtain a polycarbonate system;
step 12: vacuumizing to remove bubbles in the epoxy resin system, and then performing rotary evaporation to remove acetone;
step 13: and (3) introducing the polycarbonate system into a mold cavity, vacuumizing for 15-20min in a vacuum-pressure impregnation furnace, placing the mold in an oven, and cooling to room temperature to obtain the blue light blocking agent.
7. The preparation method of the anti-peeping anti-dazzle light blocking blue light protective film according to claim 6, wherein the mass ratio of the polycarbonate, the benzo-six-membered heterocyclic compound, the curing agent and the phenylethynyl silane is 50-100:20-120:2-6: 10-60.
8. The method for preparing the anti-peeping and anti-dazzle light blocking blue light protection film according to claim 6, wherein the curing agent is an anhydride curing agent or an amine curing agent.
9. The method for preparing the anti-peeping anti-glare light-blocking blue light protection film according to claim 7, wherein curing parameters in an oven are 80 ℃/1h, 100 ℃/2h, 140 ℃/1h and 160 ℃/1 h.
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Application publication date: 20220617 |