CN103245990B - A kind of saturating haze easy cleaning diffuser plate of novel height and its preparation method - Google Patents
A kind of saturating haze easy cleaning diffuser plate of novel height and its preparation method Download PDFInfo
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- CN103245990B CN103245990B CN201210027140.9A CN201210027140A CN103245990B CN 103245990 B CN103245990 B CN 103245990B CN 201210027140 A CN201210027140 A CN 201210027140A CN 103245990 B CN103245990 B CN 103245990B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0215—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having a regular structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B2207/00—Coding scheme for general features or characteristics of optical elements and systems of subclass G02B, but not including elements and systems which would be classified in G02B6/00 and subgroups
- G02B2207/101—Nanooptics
Abstract
The present invention discloses a kind of novel height saturating haze diffuser plate easy to clean and its preparation method, this novel diffuser plate (> 98%) while ensureing haze has again the transmittance (> 96%) of superelevation, can significantly promote the optical throughput of light fixture, it is possible to reduce use quantity and the power consumption in lamp source when equal optical throughput. This saturating haze of novel height diffuser plate easy to clean adopts cheap template synthesis, compatible with the preparation process of common diffuser plate, has wide market application foreground. Applicable in Application Areass such as various light source efficient uniform diffusions. Such as directly-down light source and side light source LED illumination lamp, the even light etc. in (Down lamp, Grille lamp, aluminum lamp, flat lamp, advertising lamp box, specialty see sheet lamp etc.) and flat panel display backlight source.
Description
Technical field
The present invention relates to the saturating haze easy cleaning diffuser plate of a kind of novel height and its preparation method, belong to light functional high molecule material preparation field.
Background technology
Light diffusing sheet is widely used in various LED lamp product, it is possible to some light dazzling for LED becomes soft, healthy face light, thus light is uniformly distributed and produces good vision effect. Traditional diffuser plate carries out the means such as frosted process to form certain microstructure at material surface, but the diffuser plate mist degree that profit is prepared in this way is low and light absorption height, transmittance is low, only can reach about 50%, seriously have impact on the utilising efficiency of LED/light source. The light occurred recently by type diffuser plate be by matrix of the polymethylmethacrylate (PMMA) of optical clear, composite inorganic micron particle and become, this kind of matrix material makes light constantly reflect between inorganic particle and resin, reflects and scattering, has good mist degree and light diffusion effect. But, owing to the reflection on diffuser plate surface seriously have impact on light transmission rate, it being only about 80%, optical energy loss is higher. Along with, under the requirement background day by day of the flourish and energy-conserving and environment-protective of LED indoor illumination, how designing and process the technical barrier that the novel diffuser plate with high saturating, haze and performance easy to clean and one has become application product R&D personnel and has been badly in need of capturing.
Nano bionic research shows: nanometer mastoid process array junctions structure that insect compound eye anterior corneal surface covers has efficient anti-reflection characteristic, this kind of constitutional features makes membrane plane effective refractive index increase gradually from complete air to complete substrate, eliminate the sudden change of interface specific refractory power, wide wave spectrum and extensive angle are had desirable antireflective effect. Inspire by this, the organism top layer nanostructure evolved through 1 years by simulation, design bionic nano cone array of protrusions on the surface at existing light diffusing sheet, be expected to reduce reflection, increase transmission, easy to clean, develop Multifunction diffuser plate.This patent further provides the development of multifunction diffuser plate, and there is not been reported for this kind of novel nano structure material.
Summary of the invention
It is an object of the invention to provide a kind of novel height saturating haze diffuser plate easy to clean.
This diffuser plate plate body is the transparent polymer material containing light diffusion particle, and diffuser plate plate body single or double has wide spectral antireflection bionic nano structure easy to clean;
Light diffusion particle is mixed by plate body inside, and the means of wide spectral antireflection bionic nano structure easy to clean are constructed in diffuser plate plate body single or double, the present invention can improve prior art shortcoming and have high transmission rate, haze, function easy to clean, can reduce use quantity or the power consumption in lamp source when equal optical throughput.
In order to achieve the above object, another object of the present invention is to propose the above-mentioned preparation technology carrying novel height saturating haze diffuser plate easy to clean of preparation.
First mixing the light diffusion particle that massfraction is 2%��20% in transparent polymer material in the molten state, extruding cooling forming via " extruder " under molten state is diffuser plate.
Above-mentioned diffuser plate plate body plate body material is transparent polymer material, this transparent polymer material can select plastic optical's material as: polymethylmethacrylate (PMMA), polycarbonate (PC), polystyrene (PS), polyethylene terephthalate (PET), polyacrylic ester, styrene-acrylonitrile copolymer (SAN), ethylene-tetrafluoroethylene copolymer (ETFE), poly(4-methyl-1-pentene) (TPX) or thermoset optical material are such as CR-39 transparent epoxy resin etc.
The light diffusion particle median size that above-mentioned diffuser plate plate body inside is mixed is 200nm��500 ��m, and composition is inorganic or organic filler material. As: one or more in silicon oxide, silicon-dioxide, titanium dioxide, calcium carbonate, polycarbonate, polymethylmethacrylate, copolymer of methyl methacrylatestyrene, vinylbenzene-TFE copolymer.
Next constructs wide spectral antireflection bionic nano structure easy to clean in the diffuser plate plate surface containing light diffusion particle, this wide spectral antireflection bionic nano structure easy to clean is made up of three-dimensional gradual change nano-projection array or duct unit array, this three-dimensional gradual change nano-projection array or pore passage structure cell size are even, axis is vertical with base face, size becomes big from bottom to top gradually or diminishes, bottom diameter is at 50nm��500nm, being highly 50nm��12 ��m, the specific refractory power of this nano bionic structure is from substrate specific refractory power to air refraction gradual change;
Above-mentioned wide spectral antireflection bionic nano structure easy to clean, its moiety is and the transparent polymer material of plate body material of the same race.
For achieving the above object, present invention employs following technical scheme:
Any one in the macromolecular material of filling and substrate material of the same race, macromolecular material monomer, polymer precursor and macromolecular solution in the template with three-dimensional gradual change nano-projection array or duct cell array structure, adopt the demoulding method high molecular nanometer structure of formation to be separated with template after making the complete complex of macromolecular material or solidification, obtain this wide spectral antireflection bionic nano structure easy to clean;
As one preferred embodiment, the method is the solution casting method combining nano impression:
First by described macromolecule dissolution in appropriate solvent, forming weight fraction is the macromolecular solution of 1��50%, viscosity according to solution and boiling characteristics, select by casting, revolve painting (rotating speed is 100��10000rpm), the methods such as Best-Effort request (pull rate is 0.01��10mm/min) or continuously coating are coated on diffuser plate plate body, then on it, described template lid is applied certain pressure;Then according to the character of macromolecular material and solvent, different vacuum tightness (e.g., 0.1��101325Pa), solvent as described in differing temps (such as 0��300 DEG C) is dry; Finally by the high molecular nanometer structure stripping of template and formation, thus obtain target product.
As another kind of preferred implementation, the method is the pressure sintering combining nano impression:
First described diffuser plate plate body is placed in described template, the difference of the processing temperature needed for concrete material, it is heated on the second-order transition temperature of solid material 20��100 DEG C. At this temperature, apply the pressure of 1��500kPa, and keep pressure 0��300min. It is down to after room temperature until temperature, removes pressure, finally template is peeled off, obtain target product.
As another preferred implementation, the method is the light polymerization method combining nano impression:
First according to viscosity and volatile difference, for different monomers, monomer solution or polymer presoma select casting, revolve painting (rotating speed is 100��10000rpm), the methods such as Best-Effort request (pull rate is 0.01��10mm/min) or continuously coating are coated on aforementioned diffuser plate plate body, again by described template lid on it, apply the pressure of 0��500Pa according to actual needs, and characteristic corresponding photosensitive wave band (wavelength the is 10��800nm) photoirradiation 0.1s��60min according to material therefor, after polymeric hardener, the high molecular nanometer structure of template and formation is peeled off, thus obtain target product. previous reaction can carry out when having or unglazed initiator participates in.
As another preferred implementation, the method is the thermal polymerization combining nano impression:
First according to viscosity and volatile difference, for different monomers, monomer solution or polymer presoma are by casting, revolve painting (rotating speed is 100��10000rpm), the methods such as Best-Effort request (pull rate is 0.01��10mm/min) or continuously coating are coated on aforementioned diffuser plate plate body, again by described template lid on it, then under the pressure of 0��500Pa, progressively heat up or directly it is warming up to polymer heat curing temperature (10��300 DEG C), treat polymeric hardener, it is down to after room temperature until temperature, the high molecular nanometer structure of template and formation is peeled off, thus obtain target product.
The template with three-dimensional gradual change nano-projection array or duct cell array structure that aforementioned template adopts is alumina formwork, metallic nickel template or fluoropolymer template.
Aforementioned oxidation aluminum alloy pattern plate is that pitch of holes is controlled within the scope of 50nm��500nm, and the back taper type nano-pore array structure alumina formwork of high-sequential, it is by preparing from orderly method based on the electrochemistry under high current field condition. Specifically, the publication number that the structure of this alumina formwork and preparation technology thereof specifically can propose see this case contriver be CN101838834.A and application number is the application for a patent for invention of 201110006345.4. Aforementioned metal nickel template can adopt and utilize electrochemical deposition method to prepare based on aforementioned oxidation aluminum alloy pattern plate, the metallic nickel template of the three-dimensional manometer array of protrusions structure of high-sequential and template complementation, the structure of this metallic nickel template and preparation technology thereof can be specifically the application for a patent for invention of 201110054017.1 see the application number of this case contriver proposition. The structure of aforementioned fluoropolymer template and preparation technology thereof can be specifically the application for a patent for invention of 201110094310.0 see the application number of this case contriver proposition.
Aforementioned method adopt direct demold method or solubilize method are separated with template by macromolecule membranous layer;
Described direct demold method is: diffuser plate body and/or the template at room temperature with external force traction surface with bionic nano structure, the high molecular nanometer structure formed on diffuser plate body is separated with template, described template surface is being placed or before coating macromolecular material, macromolecular material monomer, polymer presoma or macromolecular solution, also through fluorine-containing or containing the modification pre-treatment of silicon molecule or other low-surface energy substance;
Described solubilize method is: adopt template described in solubilized, and the solution soaking template of macromolecule membranous layer can not be damaged, thus remove template, such as, for alumina formwork, concentration can be adopted to be that the sodium hydroxide solution of 10wt%��40wt% soaks 1��24h, or soak 0.5��3h with the cupric chloride mixing solutions of concentration to be 3wt% hydrochloric acid and volumetric molar concentration be 3mol/L, for metallic nickel template, wang aqueous solution can be adopted to soak 0.5��3h.
Accompanying drawing explanation
Below with reference to accompanying drawing, the technique effect of the structure of patent of the present invention, preparation method and generation is described further, fully to understand object, the characteristic sum effect of patent of the present invention. Wherein:
Fig. 1 is the structural representation of a kind of Multifunction diffuser plate. Wherein 1 is diffuser plate plate body, and 2 is light diffusion particle, and 3 is wide spectral antireflection polymer bionic nano structure easy to clean;
Fig. 2 is the electromicroscopic photograph of high molecular nanometer biomimetic features and the Optical transmission spectrum graphic representation of this diffuser plate on the saturating haze of novel height diffuser plate surface easy to clean in embodiment 1, wherein, Fig. 2 a is the front view of high molecular nanometer biomimetic features, and Fig. 2 b is the side-view of high molecular nanometer biomimetic features; Fig. 2 c is the Optical transmission spectrum graphic representation of novel height saturating haze diffuser plate easy to clean;
Fig. 3 is the photo figure in kind of novel height saturating haze diffuser plate easy to clean.
Embodiment
Below in conjunction with accompanying drawing and some better embodiments, the technical scheme of the present invention is further described, but protection scope of the present invention does not limit by these embodiments.
Embodiment 1
Consulting Fig. 1 and Fig. 2, the present embodiment is the silicon-dioxide (SiO first utilizing different-grain diameter different mass mark2) light diffusion particle mixes and be prepared into light diffusing sheet plate body in polymethylmethacrylate (PMMA) base material, next utilizes aperture at the back taper type alumina formwork of 50nm��500nm, the polymer wide spectral antireflection structure in the preparation of the diffuser plate plate surface of above-mentioned preparation by nanometer pressure sintering with Different structural parameters, its process is:
Polymethylmethacrylate (PMMA) is warming up to molten state, then mix median size 200nm��500 ��m massfraction 2%��20% silicon-dioxide light diffusion particle (SiO2), the molten state base material that then inside contain silicon-dioxide light diffusion particle extrudes via " extruder " and cooling forming is the light diffusing sheet that 2mm is thick; Then by two panels aperture 50nm��500nm back taper type alumina formwork respectively as the both sides of diffuser plate of above-mentioned preparation and be heated to 140 DEG C, apply the pressure of 500kPa, after pressurize 30min, be down to room temperature. Relief pressure, and with the sodium hydroxide of 40%, alumina formwork is removed, obtain the novel height saturating haze diffuser plate easy to clean that surface has wide spectral anti-reflection nano bionic structure. A kind of antireflection polymer nano bionic membrane obtained by the present embodiment is as shown in Figure 3.
Embodiment 2
Consult Fig. 1 and Fig. 2, the present embodiment first utilizes polycarbonate (PC) the light diffusion particle of different-grain diameter different mass mark to mix to be prepared into light diffusing sheet plate body in polymethylmethacrylate (PMMA) base material, next utilizes aperture at the back taper type alumina formwork of 50nm��500nm, the polymer wide spectral antireflective film in the preparation of the diffuser plate plate surface of above-mentioned preparation by nanometer thermal polymerization with Different structural parameters, its process is:
Polymethylmethacrylate (PMMA) is warming up to molten state, then mix median size 200nm��500 ��m massfraction 2%��20% polycarbonate (PC) light diffusion particle, the molten state base material that then inside contain polycarbonate (PC) light diffusion particle extrudes via " extruder " and cooling forming is the light diffusing sheet plate body that 2mm is thick;By be dissolved with massfraction be 0.1% the methyl methacrylate prepolymer of initiator benzoyl peroxide (BP0) cast in two panels aperture respectively on the back taper type alumina formwork of 50nm��500nm, again by above-mentioned two panels template respectively as the both sides of diffuser plate plate body, and apply the pressure of 50kPa and it is warming up to 100 DEG C of polymerization 12h gradually. After the near room temperature of temperature, take out sample and with the sodium hydroxide of 40%, alumina formwork is removed, obtain the novel height saturating haze diffuser plate easy to clean that two surfaces have wide spectral anti-reflection bionic nano structure.
Embodiment 3
The present embodiment first utilizes polycarbonate (PC) the light diffusion particle of different-grain diameter different mass mark to mix to be prepared into light diffusing sheet plate body in polymethylmethacrylate (PMMA) base material, next utilizes aperture in the back taper shaped metal nickel template of 50nm��500nm, the polymer wide spectral anti-reflection nanostructure in the preparation of the diffuser plate plate surface of above-mentioned preparation by nanometer ultraviolet polymerization method with Different structural parameters, its process is:
Polymethylmethacrylate (PMMA) is warming up to molten state, then participate in median size 200nm��500 ��m massfraction 2%��20% polycarbonate (PC) light diffusion particle, the molten state base material that then inside contain polycarbonate (PC) light diffusion particle is extruded via " extruder " and the thick light diffusing sheet plate body of cooling forming 5mm; Then in aperture in stifling one layer of silicon fluoride (FAS) unimolecular layer of the back taper shaped metal nickel template of 50nm��500nm, the methyl methacrylate prepolymer being dissolved with light-initiated dose of benzoin ether of massfraction 0.1% is cast in respectively in the above-mentioned template of two panels, by two panels template respectively as on two surfaces of diffuser plate plate body, and apply the pressure of 20kPa. With the UV-irradiation 5min of 365nm. After the near room temperature of temperature, take out sample and remove nickel template, obtain the novel height saturating haze diffuser plate easy to clean that two surfaces have wide spectral antireflection bionic nano easy to clean structure.
Embodiment 4
The present embodiment is the silicon-dioxide (SiO first utilizing different-grain diameter different mass mark2) light diffusion particle mixes and be prepared into light diffusing sheet plate body in polycarbonate (PC) base material, next utilizes aperture in the back taper shaped metal nickel template of 50nm��500nm, the polymer wide spectral antireflective film in the preparation of the diffuser plate plate surface of above-mentioned preparation by solution casting method with Different structural parameters, its process is:
Polycarbonate (PC) is warming up to molten state, then participate in median size 200nm��500 ��m massfraction 2%��20% silicon-dioxide (SiO2) light diffusion particle, then inside is contained silicon-dioxide (SiO2) light diffusion particle molten state base material via " extruder " extrude and cooling forming be the light diffusing sheet plate body that 5mm is thick; Then in aperture in stifling one layer of silicon fluoride (FAS) unimolecular layer of the back taper shaped metal nickel template of 50nm��500nm, being dissolved in by polycarbonate (PC) and forming weight fraction in tetrahydrofuran (THF) (THF) is the macromolecular solution of 40%. By this solution-cast in aforementioned nickel template, by two panels nickel template respectively as on two surfaces of diffuser plate plate body, a normal atmosphere (101325Pa), after solvent volatilization completely, remove nickel template at 40 DEG C, obtain the saturating haze automatically cleaning diffuser plate of novel height that two surfaces have wide spectral antireflection bionic nano easy to clean structure.
Being adopted the structure of alumina formwork and metallic nickel template and preparation technology thereof to be CN101838834.A and application number referring specifically to publication number in previous embodiment 1��4 is the application for a patent for invention of 201110006345.4,201110054017.1.
Finding after tested, the novel height of previous embodiment 1��4 gained saturating haze automatically cleaning diffuser plate has superior wide spectral height thoroughly and diffusion, and in 380nm��860nm wavelength region, average transmittances is greater than 96%, and mist degree is greater than 98%.
In sum, it is several preferably specific embodiment in the present invention. All technician in the art make various corresponding change and distortion under this invention's idea on the basis of existing technology, all should belong to the protection domain of the claim appended by the present invention.
Claims (5)
1. a high haze diffuser plate easy to clean, it is characterized in that: this diffuser plate plate body is the transparent polymer material containing light diffusion particle, and diffuser plate plate body single or double has wide spectral antireflection bionic nano structure easy to clean, described wide spectral antireflection bionic nano structure easy to clean is made up of three-dimensional gradual change nano-projection array or duct unit array, this three-dimensional gradual change nano-projection array or duct unit array sizes are even, axis is vertical with base face, size becomes big from bottom to top gradually or diminishes, the bottom diameter contacted with described diffuser plate plate body is at 50nm��500nm, it is highly 50nm��12 ��m, the specific refractory power of this bionic nano structure is from substrate specific refractory power to air refraction gradual change,
This diffuser plate average transmittances in 380nm-860nm wavelength region is greater than 96%, and mist degree is greater than 98%.
2. high haze diffuser plate easy to clean thoroughly as claimed in claim 1, it is characterized in that, the transparent polymer material of described smooth diffusion particle is selected from plastic optical's material: any one in polycarbonate, polystyrene, polyethylene terephthalate, polyacrylic ester, styrene-acrylonitrile copolymer, ethylene-tetrafluoroethylene copolymer, poly(4-methyl-1-pentene).
3. high haze diffuser plate easy to clean thoroughly as claimed in claim 1, it is characterized in that the median size of described smooth diffusion particle is in 200nm��500 ��m, composition is inorganic or organic filler material: one or more in silicon oxide, titanium dioxide, calcium carbonate, polycarbonate, polymethylmethacrylate, copolymer of methyl methacrylatestyrene, vinylbenzene-TFE copolymer.
4. high haze diffuser plate easy to clean thoroughly as claimed in claim 1, it is characterized in that the preparation method of the described transparent polymer material containing light diffusion particle is: mixing the light diffusion particle that massfraction is 2%��20% in transparent polymer material in the molten state, extruding cooling forming via extruder under molten state is diffuser plate.
5. high haze diffuser plate easy to clean thoroughly as claimed in claim 1, it is characterised in that the moiety of described wide spectral antireflection bionic nano easy to clean structure is and the transparent polymer material of described diffuser plate plate body material of the same race.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210027140.9A CN103245990B (en) | 2012-02-08 | 2012-02-08 | A kind of saturating haze easy cleaning diffuser plate of novel height and its preparation method |
| PCT/CN2013/071368 WO2013117150A1 (en) | 2012-02-08 | 2013-02-05 | High-transmittance high-haze easy-clean diffusion board and preparation method thereof |
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| CN201210027140.9A CN103245990B (en) | 2012-02-08 | 2012-02-08 | A kind of saturating haze easy cleaning diffuser plate of novel height and its preparation method |
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| CN103245990B true CN103245990B (en) | 2016-06-08 |
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| CN103969941A (en) * | 2014-05-26 | 2014-08-06 | 苏州大学 | Mask as well as preparation method and graphing method thereof |
| CN104371208B (en) * | 2014-12-05 | 2017-04-19 | 成都领航科技股份有限公司 | Master batch of high-transmittance and high-masking diffusion plate, method for manufacturing master batch and method for manufacturing diffusion plate |
| CN106432937A (en) * | 2016-09-09 | 2017-02-22 | 海信容声(广东)冰箱有限公司 | Light diffusion material and method for preparing lampshade by adopting light diffusion material |
| CN107643556A (en) * | 2017-11-06 | 2018-01-30 | 张永宏 | A kind of good light diffusing sheet of diffusivity |
| CN107577005A (en) * | 2017-11-06 | 2018-01-12 | 张永宏 | A kind of steady light diffusing sheet of size |
| CN107843945A (en) * | 2017-11-06 | 2018-03-27 | 张永宏 | A kind of stable light diffusing sheet of light resistance |
| CN107934912A (en) * | 2017-12-07 | 2018-04-20 | 天津大学 | A kind of micro-nano driver of bionical paramecium |
| TWI676816B (en) * | 2018-08-22 | 2019-11-11 | 白金科技股份有限公司 | Diffuser |
| CN109058933B (en) * | 2018-08-23 | 2022-04-15 | 中山驰马灯饰照明设计工程有限公司 | Prevent antifog compound lamp shade of blue light |
| CN110703362B (en) * | 2019-10-14 | 2024-02-13 | 合肥乐凯科技产业有限公司 | High-haze high-coverage atomization film |
| CN111308594A (en) * | 2020-04-02 | 2020-06-19 | 瑞年新材料(广东)有限公司 | High-brightness PET (polyethylene terephthalate) reflective film |
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| CN103245990A (en) | 2013-08-14 |
| WO2013117150A1 (en) | 2013-08-15 |
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