CN110620161A - Light flexible photovoltaic module - Google Patents
Light flexible photovoltaic module Download PDFInfo
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- CN110620161A CN110620161A CN201910843081.4A CN201910843081A CN110620161A CN 110620161 A CN110620161 A CN 110620161A CN 201910843081 A CN201910843081 A CN 201910843081A CN 110620161 A CN110620161 A CN 110620161A
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- photovoltaic module
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- 239000002131 composite material Substances 0.000 claims abstract description 28
- 239000003365 glass fiber Substances 0.000 claims abstract description 28
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 24
- 239000011737 fluorine Substances 0.000 claims abstract description 24
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 229920002799 BoPET Polymers 0.000 claims abstract description 9
- 239000000853 adhesive Substances 0.000 claims abstract description 4
- 230000001070 adhesive effect Effects 0.000 claims abstract description 4
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 18
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 18
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical group OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000000654 additive Substances 0.000 claims description 9
- 230000000996 additive effect Effects 0.000 claims description 9
- XITRBUPOXXBIJN-UHFFFAOYSA-N bis(2,2,6,6-tetramethylpiperidin-4-yl) decanedioate Chemical group C1C(C)(C)NC(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)NC(C)(C)C1 XITRBUPOXXBIJN-UHFFFAOYSA-N 0.000 claims description 9
- WGKLOLBTFWFKOD-UHFFFAOYSA-N tris(2-nonylphenyl) phosphite Chemical group CCCCCCCCCC1=CC=CC=C1OP(OC=1C(=CC=CC=1)CCCCCCCCC)OC1=CC=CC=C1CCCCCCCCC WGKLOLBTFWFKOD-UHFFFAOYSA-N 0.000 claims description 9
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000011888 foil Substances 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000004611 light stabiliser Substances 0.000 claims description 6
- YEECOJZAMZEUBB-UHFFFAOYSA-N 2,2,3,3,6,6,7,7-octamethyloctane Chemical group CC(C)(C)C(C)(C)CCC(C)(C)C(C)(C)C YEECOJZAMZEUBB-UHFFFAOYSA-N 0.000 claims description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 150000004756 silanes Chemical class 0.000 claims description 3
- 238000002848 electrochemical method Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 10
- 239000002390 adhesive tape Substances 0.000 abstract description 3
- 229920002620 polyvinyl fluoride Polymers 0.000 description 21
- 239000000428 dust Substances 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 2
- 239000007888 film coating Substances 0.000 description 2
- 238000009501 film coating Methods 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention provides a light flexible photovoltaic module which sequentially comprises a PVF film layer, a composite glass fiber layer, a battery string and an FFC double-sided fluorine-containing back plate from top to bottom, wherein the PVF film layer and the composite glass fiber layer, the composite glass fiber layer and the battery string and the FFC double-sided fluorine-containing back plate are connected through EVA films; coating liquid is sprayed on one side of the PVF film layer, which is far away from the composite glass fiber layer, a PET film, a water-blocking film and a fluorine-containing coating are sequentially arranged on one side of the PVF film layer, which is close to the composite glass fiber layer, from top to bottom, and the PVF film layer and the water-blocking film are connected through an adhesive. The invention not only reduces the weight of the photovoltaic module to 3.5kg/m2The photovoltaic module is flexible, can be installed on a curved roof, does not need to be installed by using an installation support when being installed, only needs to install an adhesive tape on an installation surface, can realize the installation of the photovoltaic module, and the installation position of the photovoltaic module is not limited.
Description
Technical Field
The invention relates to the technical field of photovoltaic modules, in particular to a light flexible photovoltaic module.
Background
At present, most solar cell modules in the market are fixed and installed through a bracket, and can only be installed in a plane area. The installation cost for installing and fixing the photovoltaic module through the bracket is high, and the installation position is relatively fixed; in addition, the surface of the conventional photovoltaic module is packaged by using glass, so that the weight of the photovoltaic module per se is 12kg per square meter, which has certain requirement on the bearing capacity of a roof.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a light flexible photovoltaic module, which adopts the technical scheme that:
the photovoltaic module sequentially comprises a PVF film layer, a composite glass fiber layer, a battery string and an FFC double-sided fluorine-containing back plate from top to bottom, wherein the PVF film layer and the composite glass fiber layer, the composite glass fiber layer and the battery string and the FFC double-sided fluorine-containing back plate are connected through EVA films; coating liquid is sprayed on one side, far away from the composite glass fiber layer, of the PVF film layer, a PET film, a water-blocking film and a fluorine-containing coating are sequentially arranged on one side, close to the composite glass fiber layer, from top to bottom, and the PVF film layer and the composite glass fiber layer are connected through an adhesive.
The invention provides a light flexible photovoltaic module, which also comprises the following auxiliary technical scheme:
wherein, the FFC double-sided fluorine-containing back plate is provided with an aluminum foil on one side far away from the battery string.
And the aluminum foil is adhered to one side of the fluorine-containing back film layer far away from the battery string through an electrochemical method.
Wherein the coating liquid comprises modified silane, ethanol and an additive.
Wherein the additive is water or octanol, and the mass percent of the additive is 1.5-2.5%.
The EVA film comprises a main material, a light absorber, a light stabilizer, an antioxidant and a curing agent.
The light stabilizer is bis (2,2,6, 6-tetramethyl-4-piperidyl) sebacate, the antioxidant is tris (nonylphenyl) phosphite, and the curing agent is 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide.
The ethylene-vinyl acetate copolymer comprises, by mass, 97.8% -98%, 2-hydroxy-4-n-octoxybenzophenone 0.28% -0.32%, bis (2,2,6, 6-tetramethyl-4-piperidyl) sebacate 0.08% -0.12%, tris (nonylphenyl) phosphite 0.18% -0.22%, and 2, 5-dimethyl-2, 5-di-tert-butyl-hexane peroxide 1.45% -1.55%.
The ethylene-vinyl acetate copolymer is 97.9% by mass, the 2-hydroxy-4-n-octoxybenzophenone is 0.3% by mass, the bis (2,2,6, 6-tetramethyl-4-piperidyl) sebacate is 0.1% by mass, the tris (nonylphenyl) phosphite is 0.2% by mass, and the 2, 5-dimethyl-2, 5-di-tert-butylperoxyhexane is 1.5% by mass.
Wherein in the ethylene-vinyl acetate copolymer, the mass percentage of the vinyl acetate is 21%.
The implementation of the invention comprises the following technical effects:
according to the light flexible photovoltaic module, the conventional cover plate of the photovoltaic module is replaced by glass to form the PVF film layer in the application, the film coating liquid is sprayed on one side, far away from the composite glass fiber layer, of the PVF film layer, and the PET film, the water blocking film and the fluorine-containing coating are sequentially arranged on one side, close to the composite glass fiber layer, from top to bottom, so that the weight of the photovoltaic module is reduced, the photovoltaic module is flexible and can be installed on a curved roof; the coating liquid can fill pits on the PVF film layer, so that the side, in contact with the outside, of the PVF becomes flat and smooth, the light permeability increasing performance is improved, and the optical permeability increasing performance of the cover plate is more than 2%; the PET film can reduce the surface energy, reduce the attachment of dust, make the dust easily taken away by wind, and can effectively prevent the penetration of water vapor; the water-blocking film can further block the penetration of water vapor.
And, when the installation of the flexible photovoltaic module of light in this application, need not to use the installing support to install, only need install the adhesive tape on the roof, can realize photovoltaic module's installation, its mounted position is unrestricted, and because photovoltaic module's weight reduces to 3.5kg/m in this application2Thus, it has far lower roof load requirements than conventionalAssembly requirements.
Drawings
Fig. 1 is a schematic structural view of a lightweight flexible photovoltaic module of the present invention.
In the figure, 1-PVF membrane layer, 2-composite glass fiber layer, 3-battery string, 4-FFC double-sided fluorine-containing back plate and 5-EVA membrane.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
As shown in fig. 1, the light flexible photovoltaic module provided by the invention sequentially comprises a PVF film layer 1, a composite glass fiber layer 2, a cell string 3 and an FFC double-sided fluorine-containing back plate 4 from top to bottom, wherein the PVF film layer 1 and the composite glass fiber layer 2, the composite glass fiber layer 2 and the cell string 3, and the cell string 3 and the FFC double-sided fluorine-containing back plate 4 are connected through an EVA film 5; coating liquid is sprayed on one side, far away from the composite glass fiber layer 2, of the PVF film layer 1, a PET film, a water-blocking film and a fluorine-containing coating are sequentially arranged on one side, close to the composite glass fiber layer 2, from top to bottom, and the PVF film layer and the composite glass fiber layer are connected through an adhesive.
Wherein, the PVF is known as polyvinyl fluoride (PVF), which is extruded by the copolymer of fluorine and fluorocarbon molecules, is a copolymer containing fluorine or fluorocarbon, and has larger chemical bonding force and structural stability than any other polymers; the PET film is a high-temperature resistant polyester film.
According to the light flexible photovoltaic module, the conventional cover plate of the photovoltaic module is replaced by glass to form the PVF film layer in the application, the film coating liquid is sprayed on one side, far away from the composite glass fiber layer, of the PVF film layer, and the PET film, the water blocking film and the fluorine-containing coating are sequentially arranged on one side, close to the composite glass fiber layer, from top to bottom, so that the weight of the photovoltaic module is reduced, the photovoltaic module in the application has flexibility, and the photovoltaic module can be installed on a curved roof; the coating liquid can fill pits on the PVF film layer, so that the side, in contact with the outside, of the PVF becomes flat and smooth, the light permeability increasing performance is improved, and the optical permeability increasing performance of the cover plate is more than 2%; the PET film can reduce the surface energy, reduce the attachment of dust, make the dust easily taken away by wind, and can effectively prevent the penetration of water vapor; the water blocking film can further separate water vapor ground permeation, so that the photovoltaic module improves the hydrophobic property again on the basis of keeping the original water vapor separation, and the photovoltaic module has the insulating property and the ultraviolet resistance permeation capability.
And, when the installation of the flexible photovoltaic module of light in this application, need not to use the installing support to install, only need install the adhesive tape on the roof, can realize photovoltaic module's installation, its mounted position is unrestricted, and because photovoltaic module's weight reduces to 3.5kg/m in this application2Thus, it requires far less load bearing on the roof than conventional assemblies.
Preferably, an aluminum foil is arranged on one side of the FFC double-sided fluorine-containing back plate, which is far away from the battery string. In the embodiment, the aluminum foil is arranged on the side, far away from the cell string, of the FFC double-sided fluorine-containing back plate, so that the back surface of the photovoltaic module can also prevent the penetration of water vapor by 100%.
More preferably, the aluminum foil is electrochemically adhered to the fluorine-containing back film layer on a side thereof remote from the cell string.
Preferably, the coating liquid comprises modified silane, ethanol and an additive. Wherein, the additive is an auxiliary agent which can be water, octanol or a mixture of water and octanol, and the mass percentage of the additive is 1.5-2.5%.
Preferably, the EVA film comprises a main material, a light absorber, a light stabilizer, an antioxidant, and a curing agent.
The light stabilizer is bis (2,2,6, 6-tetramethyl-4-piperidyl) sebacate, the antioxidant is tris (nonylphenyl) phosphite, and the curing agent is 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide.
Preferably, the ethylene-vinyl acetate copolymer accounts for 97.8-98% by mass, the 2-hydroxy-4-n-octoxybenzophenone accounts for 0.28-0.32% by mass, the bis (2,2,6, 6-tetramethyl-4-piperidyl) sebacate accounts for 0.08-0.12% by mass, the tris (nonylphenyl) phosphite accounts for 0.18-0.22% by mass, and the 2, 5-dimethyl-2, 5-di-tert-butylperoxyhexane accounts for 1.45-1.55% by mass.
More preferably, the ethylene-vinyl acetate copolymer is 97.9% by mass, the 2-hydroxy-4-n-octoxybenzophenone is 0.3% by mass, the bis (2,2,6, 6-tetramethyl-4-piperidyl) sebacate is 0.1% by mass, the tris (nonylphenyl) phosphite is 0.2% by mass, and the 2, 5-dimethyl-2, 5-di-tert-butylperoxyhexane is 1.5% by mass.
Wherein in the ethylene-vinyl acetate copolymer, the mass percentage of the vinyl acetate is 21%. This example increases the hardness of the PVF film by setting the mass percentage of vinyl acetate in the ethylene-vinyl acetate copolymer to 21%.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. A light flexible photovoltaic module characterized in that: the photovoltaic module sequentially comprises a PVF film layer, a composite glass fiber layer, a battery string and an FFC double-sided fluorine-containing back plate from top to bottom, wherein the PVF film layer and the composite glass fiber layer, the composite glass fiber layer and the battery string and the FFC double-sided fluorine-containing back plate are connected through EVA films; coating liquid is sprayed on one side, far away from the composite glass fiber layer, of the PVF film layer, a PET film, a water-blocking film and a fluorine-containing coating are sequentially arranged on one side, close to the composite glass fiber layer, from top to bottom, and the PVF film layer and the composite glass fiber layer are connected through an adhesive.
2. A lightweight flexible photovoltaic module in accordance with claim 1, wherein: and an aluminum foil is arranged on one side of the FFC double-sided fluorine-containing back plate, which is far away from the battery string.
3. A lightweight flexible photovoltaic module in accordance with claim 2, wherein: the aluminum foil is adhered to one side, far away from the battery string, of the fluorine-containing back film layer through an electrochemical method.
4. A lightweight flexible photovoltaic module according to any one of claims 1 to 3, wherein: the coating liquid comprises modified silane, ethanol and an additive.
5. The lightweight flexible photovoltaic module of claim 4, wherein: the additive is water or octanol, and the mass percent of the additive is 1.5-2.5%.
6. A lightweight flexible photovoltaic module according to any one of claims 1 to 3, wherein: the EVA film comprises a main material, a light absorber, a light stabilizer, an antioxidant and a curing agent.
7. The lightweight flexible photovoltaic module of claim 6, wherein: the main material is ethylene-vinyl acetate copolymer, the light absorber is 2-hydroxy-4-n-octoxy benzophenone, the light stabilizer is bis (2,2,6, 6-tetramethyl-4-piperidyl) sebacate, the antioxidant is tris (nonylphenyl) phosphite, and the curing agent is 2, 5-dimethyl-2, 5-ditert-butyl-hexane peroxide.
8. The lightweight flexible photovoltaic module of claim 7, wherein: the ethylene-vinyl acetate copolymer accounts for 97.8-98% by mass, the 2-hydroxy-4-n-octyloxybenzophenone accounts for 0.28-0.32% by mass, the bis (2,2,6, 6-tetramethyl-4-piperidyl) sebacate accounts for 0.08-0.12% by mass, the tris (nonylphenyl) phosphite accounts for 0.18-0.22% by mass, and the 2, 5-dimethyl-2, 5-ditert-butyl-hexane peroxide accounts for 1.45-1.55% by mass.
9. The lightweight flexible photovoltaic module of claim 8, wherein: the ethylene-vinyl acetate copolymer accounts for 97.9% by mass, the 2-hydroxy-4-n-octoxybenzophenone accounts for 0.3% by mass, the bis (2,2,6, 6-tetramethyl-4-piperidyl) sebacate accounts for 0.1% by mass, the tris (nonylphenyl) phosphite accounts for 0.2% by mass, and the 2, 5-dimethyl-2, 5-di-tert-butylperoxyhexane accounts for 1.5% by mass.
10. A lightweight flexible photovoltaic module according to claim 8, further comprising: in the ethylene-vinyl acetate copolymer, the mass percentage of vinyl acetate is 21%.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113910695A (en) * | 2020-07-07 | 2022-01-11 | 刘勇 | Light flexible assembly, installation method thereof and photovoltaic building |
| CN114583000A (en) * | 2022-03-18 | 2022-06-03 | 苏州零碳绿建新能源科技有限公司 | Light photovoltaic module and preparation method thereof |
| WO2024045300A1 (en) * | 2022-08-30 | 2024-03-07 | 深圳市光瑞实业有限公司 | Bendable solar panel |
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