CN106353960A - Transparent ultraviolet-proof projection screen based on EVA film and preparation method - Google Patents
Transparent ultraviolet-proof projection screen based on EVA film and preparation method Download PDFInfo
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- CN106353960A CN106353960A CN201610908338.6A CN201610908338A CN106353960A CN 106353960 A CN106353960 A CN 106353960A CN 201610908338 A CN201610908338 A CN 201610908338A CN 106353960 A CN106353960 A CN 106353960A
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- support layer
- projection screen
- glued membrane
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- 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
- 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
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- 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
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- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
-
- 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
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
-
- 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
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- 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
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- 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
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- 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
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Abstract
The invention relates to a projection screen, in particular to a transparent ultraviolet-proof projection screen based on an EVA film and a preparation method. The transparent ultraviolet-proof projection screen comprises a first support layer, an EVA film sandwich layer and a second support layer which are laminated in sequence from top to bottom, wherein the EVA film sandwich layer comprises nano particles, the distribution density of the nano particles is 0.008 to 1.6 g/mm.m<2>, and the nano particles consist of titanium dioxide nano particles and inorganic salt nano particles at a mass ratio of 1: (0.1-9). Compared with the prior art, due to the transparency of the EVA film as well as the titanium dioxide nano particles and the inorganic salt nano particles uniformly distributed in the EVA film sandwich layer in the invention, the projection screen is relatively high in imaging transparency and definition; the EVA film is taken as a sandwich layer material in the invention, the transparent ultraviolet-proof projection screen is simple in manufacturing technology and can be continuously produced in batch, and the prepared projection screen has excellent durability, sound insulation performance and optical property, so that the projection screen is wide in application range and can be widely applied to the fields such as indoor advertisement, building glass and car window GPS display.
Description
Technical field
The present invention relates to a kind of projection screen, more particularly, to a kind of transparent UV resistance projection screen based on eva glued membrane and preparation
Method.
Background technology
At present, overhead projector and optical lantern are extensively used as a kind of side in the occasion display material such as meeting for speaker
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 projectors
Method is included with the modulation such as porjection type liquid crystal surface from the light of light source output to form image light, and by lens etc.
Optical system launches image light, thus projecting on screen.The shortwave light of projector is fixed close to the wavelength of ultraviolet
During adopted 10-400 nanometer, ultraviolet will diffuse-reflectance to human body, thus working the mischief to human body.
Traditional projection screen major part primary colours are white, reflex to the 3d image in human eye and are made by the integration dislocation of 3d glasses
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
Real reduction, contrast and image depth are all not 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 for cn103472667b, but wherein nanoparticle
The processing technology of interlayer is relatively backward, be only applicable to manual a small amount of produce, production efficiency low it is impossible to be applied to batch production and
Industrialization；And nanoparticle dispersing technology in interlayer is excessively simple, nanoparticle is made to disperse in interlayer uneven, impact is transparent
The effect of imaging.
Content of the invention
The technical problem to be solved is to provide a kind of transparent UV resistance projection screen based on eva glued membrane and its system
Preparation Method, the inventive method production efficiency is high, achievable industrialization production, preparation process is simple, the projection obtained by the present invention
Screen has excellent durability, sound insulation value, optical characteristics so as to there be wider range of application.
The technical scheme is that
A kind of transparent UV resistance projection screen based on eva glued membrane is it is characterised in that include the from top to bottom stacking gradually
One support layer, eva glued membrane interlayer and the second support layer, include nanoparticle in described eva glued membrane interlayer, described nanoparticle divides
Cloth density is 0.008-1.6g/mm m2(thickness is 1mm, and area is 1m2Eva glued membrane interlayer in be uniformly distributed 0.008-1.6g
Nanoparticle), described nanoparticle is 1:(0.1-9 by mass ratio) titanium dioxide nano-particle and inorganic salt nano particless group
Become.
Compared with prior art, the invention has the beneficial effects as follows:
In the present invention when projection ray injects from projection screen back, due to the transparency, the nano-silica of eva glued membrane itself
It is dispersed in interlayer with changing titanium particle and inorganic salt uniform particle, and nanoparticle is less than the cognizable size of naked eyes, passes through
Nanoparticle Rayleigh scattering is imaged, and observer all can be seen that, in any position in front, the image being injected into projection screen 2d or 3d.
And nano-titania particle has strong Absorption to ultraviolet, therefore, projection screen can absorb ultraviolet.Titanium dioxide
Itself also there are photocatalysiss, therefore, projection screen can purify indoor harmful gas, such as formaldehyde, benzene etc..The present invention is with eva
, as sandwich material, its processing technology is simple for film, can continuous batch produce, and obtained projection screen has excellent durable
Property, sound insulation value, optical characteristics, so as to there be wider range of application, can be widely used for house ads, building glass, vehicle window
Gps such as shows at the field.
On the basis of technique scheme, the present invention can also do following improvement.
As a kind of preferred implementation of the present invention, a diameter of 20-100nm of described titanium dioxide nano-particle, institute
State a diameter of 100-300nm of inorganic salt nano particless, described titanium dioxide nano-particle is anatase titanium dioxide crystalline texture and/or golden red
Stone-type crystalline texture, described inorganic salt nano particless are one of nanoparticle of barium sulfate, brium carbonate and Calcium Carbonate or many
Kind.
Beneficial effect using above-mentioned preferred version is: makes prepared projection screen transparent image effect more significantly.
As a kind of preferred implementation of the present invention, the thickness of described eva glued membrane interlayer is 0.1-10mm.
Beneficial effect using above-mentioned preferred version is: make prepared projection screen have the reliable transparency, and durable
Property.
As another kind of preferred implementation of the present invention, described first support layer and described second support layer are common glass
Glass, hardening acrylic or Merlon, its thickness is 0.1-20mm.
The beneficial effect adopting above-mentioned preferred version is: make prepared projection screen have excellent durability, sound-proofing with
And optical characteristics.
A kind of preparation method of the transparent UV resistance projection screen based on eva glued membrane employed in the present invention, including following
Step:
A, by 0.001-0.2 weight portion nanoparticle, 0.001-0.004 parts per weight dispersing agent and 16-30 parts by weight solvent
Carry out ultrasonic disperse, obtain nanoparticle dispersion liquid；
B, by 100 weight portion eva resins, 0.1-5 parts by weight of crosslinking agent, 0.1-5 weight portion antioxidant, 0.1-5 weight
Part light stabilizer is put into after high-speed mixer, and mix homogeneously with the nanoparticle dispersion liquid of gained in step a, and mixture is thrown
Enter in casting machine, through plasticizing after-drawing, traction, molding obtains eva glued membrane interlayer, and makes eva glued membrane press from both sides in the layer nanoparticle
Sub- distribution density is 0.008-1.6g/mm m2；
C, make the first support layer and the second support layer according to thickness requirements, by fusion method by the described first support
Layer, with described eva glued membrane interlayer merged respectively by upper and lower both sides for the second support layer.
As another kind of preferred implementation of the present invention, dispersant described in step a is polyphosphoric acid type, polysilicon acid
One or more of class, polycarboxylic acid, polyester, polyether-type hyper-dispersant, preferably polycarboxylic acid hyper-dispersant, more preferably commercially available
Hyper-dispersant 6300 or hyper-dispersant 598；Described solvent is one or more of methanol, ethanol or acetone；Described supersonic frequency
Rate is 20-2000khz, and jitter time is 20-600min.
Beneficial effect using above-mentioned preferred version is: can effectively improve the agglomeration of nanoparticle, make nanoparticle
Son can form the dispersion liquid of stable homogeneous, and mixing is more uniform.
As another kind of preferred implementation of the present invention, described cross-linking agent is organic peroxide class in stepb, excellent
Select 2,5- dimethyl -2,5- di-t-butyl hexane peroxide, 1,1- cyclohexane di-tert-butyl peroxide, dicumyl peroxide, uncle
One or more of butyl peroxy -3,5,5 Trimethylhexanoic acid ester, tert-butyl hydroperoxide carbonic acid -2- Octyl Nitrite；Described
Antioxidant is four [β (3,5- di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester, β-(3,5- di-t-butyl -4- hydroxyl
Base phenyl) propanoic acid octadecanol ester, phosphorous acid three (2,4- di-tert-butyl) ester, one of the double octadecyl of thio-2 acid
Or it is several；Described light stabilizer is Octabenzone, double (2,2,6,6- tetramethyl -4- piperidyl) last of the ten Heavenly stems
Two acid esters, double (1,2,2,6,6- pentamethyl -4- piperidyl) sebacate, poly- (1- ethoxy -2,2,6,6- tetramethyl -4- hydroxyl
One or more of phenylpiperidines) succinate.
Beneficial effect using above-mentioned preferred version is: under selected cross-linking agent, antioxidant, light stabilizer effect
Prepared interlayer application is made to have more excellent durability in projection screen.
As another kind of preferred implementation of the present invention, described nanoparticle dispersion liquid is to spray in stepb
Form adds high-speed mixer to be mixed with eva resin, cross-linking agent, antioxidant, light stabilizer, high-speed mixer rotating speed control
System is in 1500-2000rpm, and dispersion mixing 10-20min；Described plasticization temperature controls at 80-130 DEG C, and plasticizing forming obtains
Thickness is the eva glued membrane interlayer of 0.1-1.5mm.
Beneficial effect using above-mentioned preferred version is: makes dispersion liquid steady with eva resin, cross-linking agent, antioxidant and light
Determine agent mixing more uniform, make obtained interlayer application have more excellent transparent image effect in projection screen.
As another kind of preferred implementation of the present invention, described in stepb eva its geomery of glued membrane interlayer with
First support layer, the second support layer are consistent.
Beneficial effect using above-mentioned preferred version is: makes prepared projection screen have certain firm reliability.
As another kind of preferred implementation of the present invention, fusion method specific operation process described in step c be by
The upper and lower both sides of eva glued membrane interlayer respectively with the first support layer, second support laminated sheet after, enter back in doubling stove and merged.
Beneficial effect using above-mentioned preferred version is: preparation process is simple, can mass production.
Brief description
Fig. 1 is cross section structure diagram of the present invention；
In accompanying drawing, the list of parts representated by each label is as follows:
1st, the first support layer, 2, nanoparticle, 3, eva glued membrane interlayer, the 4, second support layer.
Specific embodiment
Hereinafter the principle and feature of the present invention is 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 0.01g average diameter be 20nm nano-titania particle (titanium dioxide nano-particle be anatase titanium dioxide knot
Crystal structure and/or rutile-type crystalline texture) and 0.001g average diameter be the barium sulfate nanoparticles of 200nm, 0.01g oversubscription
Powder 6300,160g ethanol disperse 60min with the ultrasound wave of 200khz, obtain nano-titania particle and barium sulphate nano grain
Sub- dispersion liquid；
B, by the eva resin of 1000g, 1g tert-butyl hydroperoxide carbonic acid -2- Octyl Nitrite, 1g β-(3,5- di-t-butyl -4-
Hydroxy phenyl) propanoic acid octadecanol ester, gained in double (1,2,2,6,6- pentamethyl -4- piperidyl) sebacate of 1g and step a
Nano-titania particle and barium sulfate nanoparticles dispersion liquid nanoparticle dispersion liquid put in the form of spraying at a high speed mixed
In conjunction machine, high-speed mixer rotating speed controls in 1500rpm, and after dispersion mixing 10min mix homogeneously, mixture is put into curtain coating
In machine, through plasticizing after-drawing, traction at 80 DEG C, molding obtains area and is about 1m2, thickness be 1mm eva glued membrane interlayer,
Eva glued membrane folder in the layer nano-titania particle and barium sulfate nanoparticles distribution density are 0.008g/mm m2, its shape
Size is consistent with the first support layer, the second support layer；
C, make two pieces of areas according to thickness requirements be 1m2, thickness be 2mm simple glass the first support layer and second
Support layer, after the eva glued membrane interlayer after condensing and the first support layer, the second support laminated sheet, enters in doubling stove and is melted
Close.
Embodiment 2
A, by 0.44g average diameter be 50nm nano-titania particle (titanium dioxide nano-particle be anatase titanium dioxide knot
Crystal structure and/or rutile-type crystalline texture) and 1.76g average diameter be the brium carbonate nanoparticle of 100nm, 0.044g oversubscription
Powder 598,374g methanol disperse 100min with the ultrasound wave of 1000khz, obtain nano-titania particle and brium carbonate nanometer
Particle dispersion；
B, by the eva resin of 2200g, 22g2,5- dimethyl -2,5- di-t-butyl hexane peroxide, 22g tetra- [β (3,5-
Di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester, gained in 22g2- hydroxyl -4- oxy-octyl benzophenone and step a
Nano-titania particle and brium carbonate nanoparticle dispersion liquid put in the form of spray in high-speed mixer, mixed at high speed
Machine rotating speed controls in 1700rpm, and after dispersion mixing 12min mix homogeneously, mixture is put in casting machine, at 120 DEG C
Through plasticizing after-drawing, traction, molding obtains area and is about 2m2, thickness be 1.1mm eva glued membrane interlayer, eva glued membrane interlayer
Interior nano-titania particle and brium carbonate nanoparticle distribution density are 0.8g/mm m2, its geomery and first
Hold layer, the second support layer consistent；
C, make two pieces of areas according to thickness requirements be 2m2, thickness be 5mm simple glass the first support layer and second
Support layer, after the eva glued membrane interlayer after condensing and the first support layer, the second support laminated sheet, enters in doubling stove and is melted
Close.
Embodiment 3
A, by 1.3g average diameter be 100nm nano-titania particle (titanium dioxide nano-particle be anatase titanium dioxide knot
Crystal structure and/or rutile-type crystalline texture) and 2.6g average diameter be the calcium carbonate nano particle of 300nm, the poly- carboxylic of 0.078g
Acids hyper-dispersant, 468g acetone disperse 300min with the ultrasound wave of 1800khz, obtain nano-titania particle and Calcium Carbonate
Nanoparticle dispersion liquid；
B, by 2600geva resin, 78g1,1- cyclohexane di-tert-butyl peroxide, 78g phosphorous acid three (2,4- di-t-butyl
Benzene) ester, in poly- (1- ethoxy -2,2,6,6- tetramethyl -4- hydroxy piperidine) succinate of 78g and step a gained nanometer two
Titanium particles and calcium carbonate nano particle dispersion liquid put in high-speed mixer in the form of spraying, high-speed mixer rotating speed control
System is in 1800rpm, and after dispersion mixing 14min mix homogeneously, mixture is put in casting machine, through plasticizing at 120 DEG C
After-drawing, traction, molding obtains area and is about 2m2, thickness be 1.3mm eva glued membrane interlayer, eva glued membrane press from both sides in the layer nanometer
TiO 2 particles and calcium carbonate nano particle distribution density are 1.2g/mm m2, its geomery and the first support layer, second
Support layer is consistent；
C, make two pieces of areas according to thickness requirements be 2m2, thickness be 10mm the first support layer of simple glass and the
Two support layers, after the eva glued membrane interlayer after condensing and the first support layer, the second support laminated sheet, enter in doubling stove and carry out
Merge.
Embodiment 4
A, by 0.1g average diameter be 20nm nano-titania particle (titanium dioxide nano-particle be anatase titanium dioxide crystallization
Structure and/or rutile-type crystalline texture) and 0.02g average diameter be the brium carbonate nanoparticle of 100nm, 0.003g polycarboxylic acids
Class dispersant, 26g acetone disperse 20min with the ultrasound wave of 20khz, obtain nano-titania particle and brium carbonate nanoparticle
Dispersion liquid；
B, by the eva resin of 100g, 4g2,5- dimethyl -2,5- di-t-butyl hexane peroxide, 4g tetra- [β (3,5- bis-
Tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester, gained in 4.5g2- hydroxyl -4- oxy-octyl benzophenone and step a
Nano-titania particle and brium carbonate nanoparticle dispersion liquid put in the form of spray in high-speed mixer, mixed at high speed
Machine rotating speed controls in 1900rpm, and after dispersion mixing 18min mix homogeneously, mixture is put in casting machine, warp at 80 DEG C
Cross plasticizing after-drawing, traction, molding obtains area and is about 1m2, thickness be 0.1mm eva glued membrane interlayer, in eva glued membrane interlayer
Nano-titania particle and brium carbonate nanoparticle distribution density be 0.9g/mm m2, its geomery and first support
Layer, the second support layer are consistent；
C, make two pieces of areas according to thickness requirements be 1m2, thickness be 0.1mm the first support layer of simple glass and the
Two support layers, after the eva glued membrane interlayer after condensing and the first support layer, the second support laminated sheet, enter in doubling stove and carry out
Merge.
Embodiment 5
A, by 3.6g average diameter be 100nm nano-titania particle (titanium dioxide nano-particle be anatase titanium dioxide knot
Crystal structure and/or rutile-type crystalline texture) and 1.2g average diameter be the brium carbonate nanoparticle of 300nm, 0.12g ultra-dispersed
Agent 598,900g methanol disperse 600min with the ultrasound wave of 2000khz, obtain nano-titania particle and brium carbonate nanoparticle
Sub- dispersion liquid；
B, by the eva resin of 3000g, 150g2,5- dimethyl -2,5- di-t-butyl hexane peroxide, 150g tetra- [β (3,
5- di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester, in 150g2- hydroxyl -4- oxy-octyl benzophenone and step a
The nano-titania particle of gained and brium carbonate nanoparticle dispersion liquid put in high-speed mixer, at a high speed in the form of spraying
Mixer rotating speed controls in 2000rpm, and after dispersion mixing 20min mix homogeneously, mixture is put in casting machine, 130
Through plasticizing after-drawing, traction at DEG C, molding obtains area and is about 2m2, thickness be 1.5mm eva glued membrane interlayer, eva glued membrane
Folder in the layer nano-titania particle and brium carbonate nanoparticle distribution density are 1.18g/mm m2, its geomery and
One support layer, the second support layer are consistent；
C, make two pieces of areas according to thickness requirements be 2m2, thickness be 20mm the first support layer of simple glass and the
Two support layers, after the eva glued membrane interlayer after condensing and the first support layer, the second support laminated sheet, enter in doubling stove and carry out
Merge.
Product light transmittance of the present invention is 88-95%, and up to 80-90%, existing product light transmittance is 60- to absorption of UV
70%, absorption of UV, up to 30-40%, watches film with specific reference to product of the present invention and existing product by projection screen real
Test contrast to understand, when watching film by the projection screen of the present invention, picture presents clearly, and glasses are not dry and astringent, do not have dizzy head
The sensation of pain, and film is watched by the projection screen of existing product and arises that dry and astringent, dizziness headache the sensation of glasses, and draw
Face is not clear, and product of the present invention is hardly damaged in transportation in addition, has certain mechanical strength, its preparation method letter
Single it is easy to mass production, the daily yield of production line can reach 1000-1500 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 the spirit or essential attributes of 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 requires rather than described above limits, 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 in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement 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 eva glued membrane is it is characterised in that include first from top to bottom stacking gradually
Support layer (1), eva glued membrane interlayer (3) and the second support layer (4), include nanoparticle (2) in described eva glued membrane interlayer (3),
Described nanoparticle distribution density is 0.008-1.6g/mm m2, described nanoparticle (2) is 1:(0.1-9 by mass ratio)
Titanium dioxide nano-particle is formed with inorganic salt nano particless.
2. a kind of transparent UV resistance projection screen based on eva glued membrane according to claim 1 is it is characterised in that described two
A diameter of 20-100nm of titanium oxide nanoparticles, a diameter of 100-300nm of described inorganic salt nano particless, described titanium dioxide
Nanoparticle is anatase titanium dioxide crystalline texture and/or rutile-type crystalline texture, and described inorganic salt nano particless are barium sulfate, carbonic acid
One or more of nanoparticle of barium and Calcium Carbonate.
3. a kind of transparent UV resistance projection screen based on eva glued membrane according to claim 1 is it is characterised in that described eva
The thickness of glued membrane interlayer (3) is 0.1-10mm.
4. a kind of transparent UV resistance projection screen based on eva glued membrane according to claim 1 is it is characterised in that described
One support layer (1) and described second support layer (4) are simple glass, harden acrylic or Merlon, and its thickness is 0.1-
20mm.
5. a kind of preparation method of the transparent UV resistance projection screen based on eva glued membrane a kind of as described in claim 1-4, its feature
It is, it comprises the following steps:
A, 0.001-0.2 weight portion nanoparticle, 0.001-0.004 parts per weight dispersing agent and 16-30 parts by weight solvent are carried out
Ultrasonic disperse, obtains nanoparticle dispersion liquid；
B, by 100 weight portion eva resins, 0.1-5 parts by weight of crosslinking agent, 0.1-5 weight portion antioxidant, 0.1-5 weight portion light
Stabilizer is put into after high-speed mixer, and mix homogeneously with the nanoparticle dispersion liquid of gained in step a, and mixture is put into stream
Prolong in machine, through plasticizing after-drawing, traction, molding obtains eva glued membrane interlayer (3), and makes the nanometer in eva glued membrane interlayer (3)
Particle (2) distribution density is 0.008-1.6g/mm m2；
C, according to thickness requirements make the first support layer (1) with the second support layer (4), by fusion method will described first support
Layer (1), the second support layer (4) are merged both sides up and down with described eva glued membrane interlayer (3) respectively.
6. preparation method according to claim 5 is it is characterised in that dispersant described in step a is polyphosphoric acid type, gathers
One or more of silicic acid class, polycarboxylic acid, polyester, polyether-type hyper-dispersant；Described solvent is in methanol, ethanol or acetone
One or more；Described ultrasonic disperse frequency is 20-2000khz, and jitter time is 20-600min.
7. preparation method according to claim 5 it is characterised in that in stepb described cross-linking agent be organic peroxy
Species；Described antioxidant is four [β (3,5- di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester, β-(3,5- bis- uncle
Butyl -4- hydroxy phenyl) propanoic acid octadecanol ester, phosphorous acid three (2,4- di-tert-butyl) ester, the double octadecanol of thio-2 acid
One or more of ester；Described light stabilizer is Octabenzone, double (2,2,6,6- tetramethyl -4-
Piperidyl) sebacate, double (1,2,2,6,6- pentamethyl -4- piperidyl) sebacate, poly- (1- ethoxy -2,2,6,6- four
One or more of methyl -4- hydroxy piperidine) succinate.
8. preparation method according to claim 5 it is characterised in that described in stepb nanoparticle dispersion liquid with
The form of spraying adds high-speed mixer to be mixed with eva resin, cross-linking agent, antioxidant, light stabilizer, high-speed mixer
Rotating speed controls in 1500-2000rpm, and dispersion mixing 10-20min；Described plasticization temperature controls at 80-130 DEG C, and plastifies into
Type obtains the eva glued membrane interlayer that thickness is 0.1-1.5mm.
9. preparation method according to claim 5 is it is characterised in that described in stepb eva its shape of glued membrane interlayer
Size is consistent with the first support layer (1), the second support layer (4).
10. preparation method according to claim 5 is it is characterised in that fusion method concrete operations described in step c
Journey is that both sides are closed after piece with the first support layer (1), the second support layer (4) respectively up and down by eva glued membrane interlayer (3), enters back into folder
Merged in glue stove.
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| CN201610908338.6A CN106353960A (en) | 2016-10-18 | 2016-10-18 | Transparent ultraviolet-proof projection screen based on EVA film and preparation method |
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| CN201610908338.6A CN106353960A (en) | 2016-10-18 | 2016-10-18 | Transparent ultraviolet-proof projection screen based on EVA film and preparation method |
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