CN106527035A - Transparent ultraviolet-prevention projection screen based on PVB film, and preparation method therefor - Google Patents

Transparent ultraviolet-prevention projection screen based on PVB film, and preparation method therefor Download PDF

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Publication number
CN106527035A
CN106527035A CN201610908350.7A CN201610908350A CN106527035A CN 106527035 A CN106527035 A CN 106527035A CN 201610908350 A CN201610908350 A CN 201610908350A CN 106527035 A CN106527035 A CN 106527035A
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particle
nano
projection screen
pvb
support layer
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Inventor
孙绪刚
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Shanghai lanmou Multimedia Technology Co. Ltd.
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孙绪刚
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Priority to CN201610908350.7A priority Critical patent/CN106527035A/en
Publication of CN106527035A publication Critical patent/CN106527035A/en
Priority to PCT/CN2017/102597 priority patent/WO2018072591A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/102—Oxide or hydroxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/104—Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/10—Transparent films; Clear coatings; Transparent materials

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Laminated Bodies (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

The invention relates to a projection screen, and particularly relates to a transparent ultraviolet-prevention projection screen based on a PVB film, and a preparation method therefor. The transparent ultraviolet prevention projection screen comprises a first supporting layer, a PVB film sandwich layer and a second supporting layer which are laminated from upper to lower in sequence, wherein nanoparticles are included in the PVB film sandwich layer; the distribution density of the nanoparticles is 0.008-1.6g/mm.m<2>; and the nanoparticles consist of titanium dioxide nanoparticles and inorganic salt nanoparticles at the mass ratio of 1 to (0.1-9). Compared with the prior art, by virtue of the transparency of the PVB film, and the titanium dioxide nanoparticles and inorganic salt nanoparticles uniformly distributed in the PVB film sandwich layer, the transparency and the definition of the projection screen imaging are higher; by taking the PVB film as the sandwich layer material, a simple manufacturing process and continuous batch production are realized; and in addition, the prepared projection screen has excellent impact resistance, soundproof performance, ultraviolet prevention performance and safety performance, and wide application range.

Description

A kind of transparent UV resistance projection screen and preparation method based on PVB films
Technical field
A kind of a kind of the present invention relates to projection screen, more particularly to transparent UV resistance projection screen and preparation based on PVB films Method.
Background technology
At present, overhead projector and slide projector are extensively used as a kind of speaker in the side of the occasion display material such as meeting Formula.Equally, also it is widely used in average family using the video projector and motion picture projector of liquid crystal.The projection of these projecting apparatus Method includes being modulated from the light of light source output with porjection type liquid crystal surface etc. to form image light, and by lens etc. Optical system launches image light, so as to project on screen.The wavelength that the shortwave light of projector is close to ultraviolet is fixed During adopted 10-400 nanometers, ultraviolet will diffusing reflection to human body, so as to work the mischief to human body.
Traditional projection screen major part primary colours are white, and it is to integrate to misplace by 3D glasses to reflex to the 3D rendering in human eye The image of projection forms third dimension, and not only wearing spectacles are inconvenient, and imaging definition is low, and the color of signal itself cannot be true Reduction, contrast and image depth it is all inadequate, it is impossible to reach the standard of the industry of advertisement media and other practicality.
China Patent Publication No. discloses a kind of transparent UV resistance projection screen, but wherein nano-particle for CN103472667B The manufacture craft of interlayer falls behind relatively, be only applicable to it is manual a small amount of produce, production efficiency is low, it is impossible to be applied to batch production and Industrialization；And nano-particle dispersing technology in interlayer is excessively simple, nano-particle is disperseed in interlayer uneven, affect transparent The effect of imaging.
The content of the invention
The technical problem to be solved is to provide a kind of transparent UV resistance projection screen based on PVB films and preparation Method, the inventive method production efficiency are high, are capable of achieving industrialization production, preparation process is simple, the projection screen obtained by the present invention With excellent shock resistance, sound insulation value, uv resistance energy and security performance so as to there is wider range of application.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
A kind of transparent UV resistance projection screen based on PVB films, it is characterised in that including for from top to bottom stacking gradually Include nano-particle, the nano-particle point in one support layer, PVB films interlayer and the second support layer, the PVB films interlayer Cloth density is 0.008-1.6g/mm m2(thickness is 1mm, and area is 1m2PVB film interlayers in be uniformly distributed 0.008-1.6g Nano-particle), the nano-particle is 1 by mass ratio：(0.1-9) titanium dioxide nano-particle and inorganic salt nanometer particle group Into.
Compared with prior art, the invention has the beneficial effects as follows：
The present invention when projection ray is injected from projection screen back, due to the transparency, the nanometer titanium dioxide of PVB films itself It is dispersed in interlayer titanium particle and inorganic salts uniform particle, and nano-particle is less than the cognizable size of naked eyes, by receives Rice corpuscles Rayleigh scattering is imaged, and observer can be seen the image for being injected into projection screen 2D or 3D in any position in front.And Nano-titania particle has strong absorption to ultraviolet, therefore, projection screen can absorb ultraviolet.Titanium dioxide sheet Body also has photocatalysis, therefore, projection screen can purify indoor harmful gas, such as formaldehyde, benzene etc., and the inventive method is relative Have the advantages that simple production process, low cost, production efficiency are high with the projection screen of quality, can be widely used for house ads, build Build glass, vehicle window GPS and the field such as show.
, using PVB films as sandwich material, its manufacture craft is simple for the present invention, can continuous batch production, obtained throwing Shadow screen has excellent shock resistance, sound insulation value, uv resistance energy and security performance so as to which having Enclose.
The nano-titania particle and inorganic salt particle of the present invention is passed through under the double action of coupling agent and dispersant Ultrasonic disperse, can effectively improve the agglomeration traits of nano-particle, make nano-titania particle and inorganic salt particle more It is evenly dispersed in PVB film interlayers, makes obtained projection screen that there is more excellent transparent image effect.
In a kind of preferred embodiment of foregoing invention, a diameter of 20-100nm of the nano-titania particle, institute The a diameter of 100-300nm of inorganic salt nanometer particle is stated, the titanium dioxide nano-particle is anatase titanium dioxide crystalline texture and/or golden red Stone-type crystalline texture, the inorganic salt nanometer particle are the one kind or many in the nano-particle of barium sulfate, brium carbonate and calcium carbonate Kind.
Using the beneficial effect of above-mentioned preferred version it is：Make obtained projection screen transparent image effect more significantly.
In a kind of preferred embodiment of foregoing invention, the thickness of the PVB films interlayer is 0.1-10mm.
Using the beneficial effect of above-mentioned preferred version it is：It is imaged projection screen to become apparent from.
In a kind of preferred embodiment of foregoing invention, first support layer is common glass with second support layer Glass, hardening acrylic or Merlon, its thickness are 0.1-20mm.
Using the beneficial effect of above-mentioned preferred version it is：Projection screen has more excellent impact resistance and sound-proofing, peace Quan Xing.
A kind of transparent UV resistance projection screen and preparation method based on PVB films employed in the present invention, including following Step：
A, by 0.001-0.2 weight portion nano-particles, 0.001-0.01 weight portion coupling agents, 0.001-0.004 weight portions Dispersant and 20-45 parts by weight of plasticizer carry out ultrasonic disperse, obtain nanoparticle dispersion liquid；
B, the nanoparticle dispersion liquid in 100 weight portion PVB resins, 0.1-5 weight portions antioxidant and step A is carried out Batch mixing, kneading, then extruded by screw extruder, and cooling and shaping is carried out on curtain coating chill roll, PVB film interlayers are obtained, And make the nano-particle distribution density in PVB film interlayers be 0.008-1.6g/mm m2；
C, make the first support layer and the second support layer according to thickness requirements, by merge by first support layer, the Two support layers are merged with the upper and lower both sides of the PVB films interlayer respectively.
In a kind of preferred embodiment of foregoing invention, in step the coupling agent include N- (β-aminoethyl)-γ- Aminopropyl trimethoxysilane, gamma-aminopropyl-triethoxy-silane, γ-glycidyl ether oxygen propyl trimethoxy silicane and γ- One or more in (methacryloxypropyl) propyl trimethoxy silicane；The dispersant include polyphosphoric acid type, polysilicon acid class, One or more in polycarboxylic acid, polyester, polyether-type hyper-dispersant, preferably polycarboxylic acid hyper-dispersant are more preferably commercially available super Dispersant 6300 or hyper-dispersant 598；The plasticizer includes dialkyl ester, the phthalic acid dioxane of triethylene glycol or tetraethylene glycol One or more in base ester, hexanedioic acid dialkyl ester, DAS di alkyl sebacate or tricresyl phosphate organic ester, preferably triethylene glycol two is different Monooctyl ester, tetraethylene glycol diheptanoate, dihexyl adipate or dihexyl sebacate.
Using the beneficial effect of above-mentioned preferred version it is：The agglomeration traits of nano-particle can be effectively improved, nanometer is made TiO 2 particles and inorganic salt particle are more uniformly dispersed in PVB film interlayers, obtained projection screen is had more Excellent transparent image effect.
In a kind of preferred embodiment of foregoing invention, the ultrasonic disperse frequency is 20-2000KHz in step, point The scattered time is 20-600min.
Using the beneficial effect of above-mentioned preferred version it is：Nano-particle is made to form the dispersion liquid of stable homogeneous, mixing is more Uniformly.
In a kind of preferred embodiment of foregoing invention, the antioxidant has for phenols, esters and Ammonia in stepb One or more in machine thing, preferably phenol, more preferably BHT or 2,2 '-di-2-ethylhexylphosphine oxide (4- Methyl-6-tert-butylphenol).
Using the beneficial effect of above-mentioned preferred version it is：Make projection screen that there is more excellent durability.
In a kind of preferred embodiment of foregoing invention, the screw extruder in stepb, its screw speed is 80- 200rpm, each area's temperature control exist：One 70-80 DEG C of area；Two 120-130 DEG C of areas；Three 150-160 DEG C of areas；Four 160-180 DEG C of areas； Five 140-150 DEG C of areas.
Using the beneficial effect of above-mentioned preferred version it is：PVB films are more transparent, uniform, are imaged apparent.
In a kind of preferred embodiment of foregoing invention, the mode merged described in step C is high-pressure process or vacuum one Footwork.
Using the beneficial effect of above-mentioned preferred version it is：Preparation process is simple, can continuous batch metaplasia product.
Specific embodiment
Hereinafter the principle and feature of the present invention are described, example is served only for explaining the present invention, is not intended to limit Determine the scope of the present invention.
Embodiment 1
A, by 0.001g average diameters for 20nm nano-titania particle (titanium dioxide nano-particle be anatase titanium dioxide knot Crystal structure and/or rutile-type crystalline texture) and 0.006g average diameters be the barium sulfate nanoparticles of 100nm, 0.001gN- (β-aminoethyl)-γ-aminopropyltrimethoxysilane, 0.001g polycarboxylic acids hyper-dispersant and 20g triethylene glycols di-isooctyl with 20KHz ultrasonic disperse 20min, obtain nano-titania particle and barium sulfate nanoparticles dispersion liquid；
B, by the nano-titania particle and barium sulfate in 100gPVB resins, 0.1g phenolic antioxidants and step A Nanoparticle dispersion liquid carries out batch mixing, kneading, then is extruded by screw extruder, and its screw speed is 80rpm, each area's temperature control System exists：One 70 DEG C of area；Two 120 DEG C of areas；Three 150 DEG C of areas；Four 160 DEG C of areas；Five 140 DEG C of areas, and carry out on curtain coating chill roll cold But shape, area is obtained for 1m2, PVB film interlayer of the thickness for 0.1mm, and it is distributed the nano-particle in PVB film interlayers Density is 0.056g/mm m2；
C, according to demand making area are 1m2, first support layer and second support layer of the thickness for 0.1mm, itself and PVB glue Piece sandwich shape consistent size, it is the first support layer, the second support layer is upper and lower with the PVB films interlayer respectively by high-pressure process Merged both sides.
Embodiment 2
A, by 0.4g average diameters be 40nm nano-titania particles (titanium dioxide nano-particle be anatase titanium dioxide crystallization knot Structure and/or rutile-type crystalline texture) and 1.6g average diameters be the brium carbonate nano-particle of 140nm, 0.06g γ-aminopropyl Triethoxysilane, 0.04g hyper-dispersants 6300 and 600g tetraethylene glycol diheptanoates are obtained with 600KHz ultrasonic disperse 100min Nano-titania particle and brium carbonate nanoparticle dispersion liquid；
B, by the nano-titania particle in 2000gPVB resins, 20g2,6- di-tert-butyl methyl phenols and step A Batch mixing, kneading are carried out with brium carbonate nanoparticle dispersion liquid, then are extruded by screw extruder, its screw speed is 120rpm, Each area's temperature control exists：One 75 DEG C of area；Two 125 DEG C of areas；Three 155 DEG C of areas；Four 170 DEG C of areas；Five 145 DEG C of areas, and in curtain coating cooling Cooling and shaping is carried out on roller, obtains area for 1m2, PVB film interlayer of the thickness for 2mm, and make the nanometer in PVB film interlayers Particle distribution density is 0.77g/mm m2；
C, according to demand making area are 1m2, first support layer and second support layer of the thickness for 3mm, itself and PVB films Sandwich shape consistent size, by vacuum one-step by the first support layer, the second support layer respectively with the PVB films interlayer on Merged lower both sides.
Embodiment 3
A, by 12.8g average diameters be 90nm nano-titania particles (titanium dioxide nano-particle be anatase titanium dioxide crystallization Structure and/or rutile-type crystalline texture) and 1.6g average diameters be the calcium carbonate nano particle of 280nm, 1.28g γ-(methyl Acryloyl-oxy) propyl trimethoxy silicane, 0.48g hyper-dispersants 6300 and 6400g dihexyl adipates with 1800KHz ultrasound point Scattered 500min, obtains nano-titania particle and calcium carbonate nano particle dispersion liquid；
B, by 16000g weight portion PVB resins, 640g2,2 '-di-2-ethylhexylphosphine oxide (4- methyl-6-tert-butylphenols) and step A In nano-titania particle and calcium carbonate nano particle dispersion liquid carry out batch mixing, kneading, then extruded by screw extruder, Its screw speed is 180rpm, and each area's temperature control exists：One 78 DEG C of area；Two 127 DEG C of areas；Three 158 DEG C of areas；Four 178 DEG C of areas；5th area 148 DEG C, and cooling and shaping is carried out on curtain coating chill roll, area is obtained for 2m2, PVB film interlayer of the thickness for 8mm, and make Nano-particle distribution density in PVB film interlayers is 0.625g/mm m2；
C, according to demand making area are 2m2, first support layer and second support layer of the thickness for 15mm, itself and PVB glue Piece sandwich shape consistent size, it is the first support layer, the second support layer is upper and lower with the PVB films interlayer respectively by high-pressure process Merged both sides.
Embodiment 4
A, by 32g average diameters be 100nm nano-titania particles (titanium dioxide nano-particle be anatase titanium dioxide crystallization knot Structure and/or rutile-type crystalline texture) and 2g average diameters be the barium sulfate nanoparticles of 300nm, 2g γ-(methacryl Oxygen) propyl trimethoxy silicane, 0.8g hyper-dispersants 598 and 9000g dihexyl sebacates be with 2000KHz ultrasonic disperses 600min, obtains nano-titania particle and barium sulfate nanoparticles dispersion liquid；
B, by 20000gPVB resins, 1000g2,2 '-di-2-ethylhexylphosphine oxide (4- methyl-6-tert-butylphenols) and step A Nano-titania particle and barium sulfate nanoparticles dispersion liquid carry out batch mixing, kneading, then are extruded by screw extruder, its spiral shell Bar rotating speed is 200rpm, and each area's temperature control exists：One 80 DEG C of area；Two 130 DEG C of areas；Three 160 DEG C of areas；Four 180 DEG C of areas；Five areas 150 DEG C, and cooling and shaping is carried out on curtain coating chill roll, area is obtained for 2m2, PVB film interlayer of the thickness for 10mm, and make PVB Nano-particle distribution density in film interlayer is 1.13g/mm m2；
C, according to demand making area are 2m2, first support layer and second support layer of the thickness for 20mm, itself and PVB glue Piece sandwich shape consistent size, by vacuum one-step by the first support layer, the second support layer respectively with the PVB films interlayer Both sides are merged up and down.
Product light transmittance of the present invention is 90-95%, and up to 85-90%, existing product light transmittance is 60- to absorption of UV 70%, absorption of UV watches film reality with existing product by projection screen with specific reference to product of the present invention up to 30-40% Test contrast to understand, when watching film by the projection screen of the present invention, picture is presented clear, and glasses are not dry and astringent, do not have dizzy head The sensation of pain, and the projection screen viewing film for passing through existing product just occurs that glasses are dry and astringent, dizziness headache sensation, and draw Face is not clear enough, and product of the present invention is hardly damaged in transportation in addition, has certain mechanical strength, its preparation method letter It is single, it is easy to which that mass production, the daily yield of production line can reach 2000-2500 square metre.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling Change is included in the present invention.
The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.

Claims (10)

1. a kind of transparent UV resistance projection screen based on PVB films, it is characterised in that including first for from top to bottom stacking gradually Include nano-particle, the nano-particle distribution in support layer, PVB films interlayer and the second support layer, the PVB films interlayer Density is 0.008-1.6g/mm m2, the nano-particle is 1 by mass ratio：(0.1-9) titanium dioxide nano-particle and nothing Machine salt nano-particle is constituted.
2. a kind of transparent UV resistance projection screen based on PVB films according to claim 1, it is characterised in that described two A diameter of 20-100nm of titanium oxide nanoparticles, a diameter of 100-300nm of the inorganic salt nanometer particle, the titanium dioxide Nano-particle is anatase titanium dioxide crystalline texture and/or rutile-type crystalline texture, and the inorganic salt nanometer particle is barium sulfate, carbonic acid One or more in the nano-particle of barium and calcium carbonate.
3. a kind of transparent UV resistance projection screen based on PVB films according to claim 1, it is characterised in that the PVB The thickness of film interlayer is 0.1-10mm.
4. a kind of transparent UV resistance projection screen based on PVB films according to claim 1, it is characterised in that described One support layer is simple glass, hardening acrylic or Merlon with second support layer, and its thickness is 0.1-20mm.
5. a kind of preparation method of the transparent UV resistance projection screen based on PVB films a kind of as described in claim 1-4, its feature It is that it comprises the following steps：
A, by 0.001-0.2 weight portion nano-particles, 0.001-0.01 weight portion coupling agents, 0.001-0.004 weight portions dispersion Agent and 20-45 parts by weight of plasticizer carry out ultrasonic disperse, obtain nanoparticle dispersion liquid；
B, the nanoparticle dispersion liquid in 100 weight portion PVB resins, 0.1-5 weight portions antioxidant and step A is mixed Material, kneading, then extruded by screw extruder, and cooling and shaping is carried out on curtain coating chill roll, PVB film interlayers are obtained, and The nano-particle distribution density in PVB film interlayers is made to be 0.008-1.6g/mm m2；
C, make the first support layer and the second support layer according to thickness requirements, by merge by first support layer, second Hold layer to be merged with the upper and lower both sides of the PVB films interlayer respectively.
6. preparation method according to claim 5, it is characterised in that the coupling agent includes N- (β-ammonia second in step Base)-γ-aminopropyltrimethoxysilane, gamma-aminopropyl-triethoxy-silane, γ-glycidyl ether oxygen propyl trimethoxy silicon One or more in alkane and γ-(methacryloxypropyl) propyl trimethoxy silicane；The dispersant includes polyphosphoric acid type, gathers One or more in silicic acid class, polycarboxylic acid, polyester, polyether-type hyper-dispersant；The plasticizer includes triethylene glycol or four sweet In the dialkyl ester of alcohol, bialkyl ortho phthalate, hexanedioic acid dialkyl ester, DAS di alkyl sebacate or tricresyl phosphate organic ester One or more.
7. preparation method according to claim 5, it is characterised in that the ultrasonic disperse frequency is 20- in step 2000KHz, jitter time are 20-600min.
8. preparation method according to claim 5, it is characterised in that the antioxidant is phenols, esters in stepb With one or more in Ammonia organic matter.
9. preparation method according to claim 5, it is characterised in that the screw extruder in stepb, its screw rod turn Speed is 80-200rpm, and each area's temperature control exists：One 70-80 DEG C of area；Two 120-130 DEG C of areas；Three 150-160 DEG C of areas；Four area 160- 180℃；Five 140-150 DEG C of areas.
10. preparation method according to claim 5, it is characterised in that the mode merged described in step C is to include height Platen press or vacuum one-step.
CN201610908350.7A 2016-10-18 2016-10-18 Transparent ultraviolet-prevention projection screen based on PVB film, and preparation method therefor Pending CN106527035A (en)

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