CN102569464B - Nano plasma modified fluorine-containing highly weather-resistant solar cell back film and production process thereof - Google Patents
Nano plasma modified fluorine-containing highly weather-resistant solar cell back film and production process thereof Download PDFInfo
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- CN102569464B CN102569464B CN201210029312.6A CN201210029312A CN102569464B CN 102569464 B CN102569464 B CN 102569464B CN 201210029312 A CN201210029312 A CN 201210029312A CN 102569464 B CN102569464 B CN 102569464B
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- 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
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Abstract
The invention relates to a nano plasma modified fluorine-containing highly weather-resistant solar cell back film and a production process thereof. The production process is characterized by comprising the following steps of: (1) treating an inner side face of a fluorine-containing polymer film or a fluorine-containing coating in a plasma treatment machine, and forming a grafted layer on the inner side face of the fluorine-containing polymer film or the fluorine-containing coating; and (2) compounding one side of a polyethylene terephthalate (PET) base material with the inner side face of the fluorine-containing polymer film or the fluorine-containing coating through a binding material under the pressure of 3-10Kgf, preliminarily curing at the temperature of between 40 and 60 DEG C for 1 to 3 days, compounding the other side of the PET base material with a polyolefin material through the binding material under the pressure of 3-10Kgf, and curing at the temperature of between 40 and 60 DEG C for 3 to 10 days. The invention has the advantages that: due to the adoption of a nano hydrophilic fluorinated plasma treatment technology, the defect of low interlaminar strength of the traditional composite back film is completely overcome, and the solar cell back film has everlasting excellent interlaminar strength in a highly humidity-resistant and heat-resistant environment.
Description
Technical field
The present invention relates to a kind of solar cell notacoria, the high weather-proof solar cell notacoria of especially a kind of nano plasma modified fluoride-containing and production technology thereof.
Background technology
Current domestic crystal silicon solar battery component package mainly contains multiple membranous type (weathering layer material etc. is bonded by glue with base material) and application type (directly applying one deck fluorine-containing coat on base material) two classes with notacoria, mainly take multiple membranous type notacoria at present as main, and the multiple current topmost problem of membranous type notacoria to be cohesive force (interlaminar strength) between weathering layer material etc. and base material can not remain on a higher level (as: 7N/cm) lastingly, and there is the phenomenon of interlayer layering glass.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the high weather-proof solar cell notacoria of a kind of nano plasma modified fluoride-containing and production technology thereof are provided, this notacoria can keep good interlaminar bonding power under long-time climatic environment, guarantee not stratified between notacoria internal material, thereby guaranteed the Long-Term Properties of notacoria.
According to technical scheme provided by the invention, the high weather-proof solar cell notacoria of a kind of nano plasma modified fluoride-containing, comprise PET base material, feature is: the lateral surface at described PET base material is provided with fluorine-containing coat or fluoro-containing copolymer film, medial surface at PET base material arranges polyolefin layer, is grafting layer between PET base material and fluorine-containing coat; Between described grafting layer and PET base material, by the first tack coat, connected, between described PET base material and polyolefin layer, by the second tack coat, connected.
The thickness of described fluoro-containing copolymer film or fluorine-containing coat is 10～50 μ m.
The thickness of described grafting layer is 1～5 μ m.
The thickness of described PET base material is 100～300 μ m.
The thickness of described polyolefin layer is 20～150 μ m.
The thickness of described the first tack coat and the second tack coat is 5～15 μ m.
The present invention also protects the production technology of the high weather-proof solar cell notacoria of a kind of nano plasma modified fluoride-containing, and feature is to comprise following processing step:
(1) medial surface of fluoro-containing copolymer film or fluorine-containing coat is processed 0.1～2 second in plasma processor, at the medial surface formation grafting layer of fluoro-containing copolymer film or fluorine-containing coat; In the gas generation cavity of plasma processor, hold fluorine containing silane coupling agent, working gas is argon gas or helium, and the concentration of working gas is 99～99.99%, and discharge frequency is 50～5000Hz;
(2) one side of PET base material and the medial surface of fluoro-containing copolymer film or fluorine-containing coat are undertaken compound by binding material, composite pressure is 3～10Kgf, at 40～60 ℃, carry out after 1～3 day primary solidification, another side at PET base material is undertaken compound by binding material and polyolefine material again, composite pressure is 3～10Kgf, then 40～60 ℃ of slakings of carrying out 3～10 days.
Described binding material is two component Polyurethane glues.
Described fluoro-containing copolymer film is single fluorine polyethylene (PVF), inclined to one side difluoro polyethylene (PVDF) or ETFE polymer (ETFE).
Described fluorine-containing coat is the fluoro-containing coating that fluoroolefins-vinyl ether co-polymer (FEVE) resin is matrix resin.
Described polyolefine material is LLDPE or non-linear polyethylene glued membrane.
Advantage of the present invention: adopt nano-hydrophilic to fluoridize plasma treatment technique, thoroughly solved the interlaminar strength weakness on the low side of conventional composite type notacoria, there is the good interlaminar strength of brilliance lasting under high wet-heat resisting environment.
Accompanying drawing explanation
fig. 1 is structural representation of the present invention.
The specific embodiment
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As shown in the figure: the high weather-proof solar cell notacoria of nano plasma modified fluoride-containing of the present invention comprises PET base material 4, lateral surface at described PET base material 4 is provided with fluorine-containing coat or fluoro-containing copolymer film 1, medial surface at PET base material 4 arranges polyolefin layer 6, is grafting layer 2 between PET base material 4 and fluorine-containing coat or fluoro-containing copolymer film 1; Between described grafting layer 2 and PET base material 4, by the first tack coat 3, connected, between described PET base material 4 and polyolefin layer 6, by the second tack coat 5, connected; The thickness of described fluoro-containing copolymer film or fluorine-containing coat 1 is 10～50 μ m, and the thickness of described grafting layer 2 is 1～5 μ m; The thickness of described PET base material 4 is 100～300 μ m; The thickness of described polyolefin layer 6 is 20～150 μ m; The thickness of described the first tack coat 3 and the second tack coat 5 is 5～15 μ m.
The first tack coat of the present invention and the second tack coat consist of binding material, and described binding material can play bond fluoropolymers film or fluorine-containing coat and PET base material; Binding material used in the present invention is not specifically limited, only otherwise goal of the invention of the present invention is produced to restriction, two component Polyurethane glues that for example embodiment of the present invention adopts.
Fluoro-containing copolymer film used in the present invention or fluorine-containing coat are the outermost materials of notacoria, the outer surface of fluoro-containing copolymer film or fluorine-containing coat is the one side contacting with air, play the effects such as ultraviolet resistance, the inner surface of fluoro-containing copolymer film or fluorine-containing coat is the fluorine-containing hydrophilic nano material of plasma modification grafting layer, can promote the cohesive force of binding material and fluoro-containing copolymer film or fluorine-containing coat, be the composite surface with PET base material; Fluoro-containing copolymer film used in the present invention or fluorine-containing coat are not specifically limited, only otherwise goal of the invention of the present invention is produced to restriction, the fluoro-containing copolymer film that for example embodiment of the present invention adopts is single fluorine polyethylene (PVF), inclined to one side difluoro polyethylene (PVDF) or ETFE polymer (ETFE), and the fluorine-containing coat that the embodiment of the present invention adopts is the fluoro-containing coating that fluoroolefins-vinyl ether co-polymer (FEVE) resin is matrix resin.
Polyolefin layer of the present invention consists of polyolefine material, another kind of encapsulating material when described polyolefine material material can play a part to improve notacoria application and in EVA(solar module) peel strength; Polyolefine material used in the present invention is not specifically limited, and only otherwise goal of the invention of the present invention is produced to restriction, what for example the embodiment of the present invention adopted is LLDPE or non-linear polyethylene glued membrane.
PET base material used in the present invention is material of main part, plays mechanics and supports, intercepts steam, electric insulation; The one side of PET base material is compound with fluoro-containing copolymer film or fluorine-containing coat, and another side (EVA adhesive surface) is polyolefine material (modified poly ethylene etc.).
Embodiment mono-: the production technology of the high weather-proof solar cell notacoria of a kind of nano plasma modified fluoride-containing, comprises following processing step:
(1) medial surface of PVF film is processed 0.1 second in plasma processor, at the medial surface formation grafting layer of PVF film; In the gas generation cavity of plasma processor, hold fluorine containing silane coupling agent, working gas is argon gas, and the concentration of working gas is 99%, and discharge frequency is 5000Hz;
(2) one side of PET base material and the medial surface of PVF film are undertaken compound by binding material, composite pressure is 3Kgf, at 40 ℃, carry out after 3 days primary solidification, another side at PET base material is undertaken compound by binding material and polyolefine material again, composite pressure is 3Kgf, then 40 ℃ of slakings of carrying out 10 days.
Embodiment bis-: the production technology of the high weather-proof solar cell notacoria of a kind of nano plasma modified fluoride-containing, comprises following processing step:
(1) medial surface of PVDF film is processed 2 seconds in plasma processor, at the medial surface formation grafting layer of PVDF film; In the gas generation cavity of plasma processor, hold fluorine containing silane coupling agent, working gas is argon gas, and the concentration of working gas is 99.99%, and discharge frequency is 50Hz;
(2) one side of PET base material and the medial surface of PVDF film are undertaken compound by binding material, composite pressure is 10Kgf, at 60 ℃, carry out after 1 day primary solidification, another side at PET base material is undertaken compound by binding material and polyolefine material again, composite pressure is 10Kgf, then 60 ℃ of slakings of carrying out 3 days.
Embodiment tri-: the production technology of the high weather-proof solar cell notacoria of a kind of nano plasma modified fluoride-containing, comprises following processing step:
(1) medial surface of etfe film is processed 1 second in plasma processor, at the medial surface formation grafting layer of etfe film; In the gas generation cavity of plasma processor, hold fluorine containing silane coupling agent, working gas is argon gas or helium, and the concentration of working gas is 99.9%, and discharge frequency is 500Hz;
(2) one side of PET base material and the medial surface of etfe film are undertaken compound by binding material, composite pressure is 6Kgf, at 50 ℃, carry out after 2 days primary solidification, another side at PET base material is undertaken compound by binding material and polyolefine material again, composite pressure is 6Kgf, then 50 ℃ of slakings of carrying out 5 days.
Claims (6)
1. a production technology for the high weather-proof solar cell notacoria of nano plasma modified fluoride-containing, is characterized in that, comprises following processing step:
(1) medial surface of fluoro-containing copolymer film or fluorine-containing coat is processed 0.1～2 second in plasma processor, at the medial surface formation grafting layer of fluoro-containing copolymer film or fluorine-containing coat; In the gas generation cavity of plasma processor, hold fluorine containing silane coupling agent, working gas is argon gas or helium, and the concentration of working gas is 99～99.99%, and discharge frequency is 50～5000Hz;
(2) one side of PET base material and the medial surface of fluoro-containing copolymer film or fluorine-containing coat are undertaken compound by binding material, composite pressure is 3～10Kgf, at 40～60 ℃, carry out after 1～3 day primary solidification, another side at PET base material is undertaken compound by binding material and polyolefine material again, composite pressure is 3～10Kgf, then 40～60 ℃ of slakings of carrying out 3～10 days.
2. the production technology of the high weather-proof solar cell notacoria of nano plasma modified fluoride-containing as claimed in claim 1, is characterized in that: described binding material is two component Polyurethane glues.
3. the production technology of the high weather-proof solar cell notacoria of nano plasma modified fluoride-containing as claimed in claim 1, is characterized in that: described fluoro-containing copolymer film is single fluorine polyethylene, inclined to one side difluoro polyethylene or ETFE polymer.
4. the production technology of the high weather-proof solar cell notacoria of nano plasma modified fluoride-containing as claimed in claim 1, is characterized in that: described fluorine-containing coat is the fluoro-containing coating that fluoroolefins-vinyl ether co-polymer (FEVE) resin is matrix resin.
5. the production technology of the high weather-proof solar cell notacoria of nano plasma modified fluoride-containing as claimed in claim 1, is characterized in that: described polyolefine material is LLDPE or non-linear polyethylene glued membrane.
6. the production technology of the high weather-proof solar cell notacoria of nano plasma modified fluoride-containing as claimed in claim 1, it is characterized in that: the thickness of described fluoro-containing copolymer film or fluorine-containing coat (1) is 10～50 μ m, the thickness of described grafting layer (2) is 1～5 μ m.
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| CN201210029312.6A CN102569464B (en) | 2012-02-10 | 2012-02-10 | Nano plasma modified fluorine-containing highly weather-resistant solar cell back film and production process thereof |
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| CN201210029312.6A CN102569464B (en) | 2012-02-10 | 2012-02-10 | Nano plasma modified fluorine-containing highly weather-resistant solar cell back film and production process thereof |
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| CN102569464B true CN102569464B (en) | 2014-04-02 |
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| CN103013369B (en) * | 2012-11-13 | 2014-07-23 | 宁波长阳科技有限公司 | High-cohesiveness polyester film, method for preparing same as well as solar cell back panel |
| CN103094416B (en) * | 2013-01-21 | 2016-08-17 | 无锡中洁能源技术有限公司 | A kind of photovoltaic module production technology |
| CN105977324A (en) * | 2016-07-25 | 2016-09-28 | 无锡中洁能源技术有限公司 | Single-surface-fluorine-containing high-performance backboard |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102067327A (en) * | 2008-06-23 | 2011-05-18 | 旭硝子株式会社 | Backsheet for solar cell module and solar cell module |
| CN202487618U (en) * | 2012-02-10 | 2012-10-10 | 无锡中洁能源技术有限公司 | Nano-plasma modified fluorine-containing highly weather-proof solar cell back film |
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| KR20050096161A (en) * | 2003-01-29 | 2005-10-05 | 아사히 가라스 가부시키가이샤 | Coating composition, antireflective film, photoresist and pattern forming method using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102067327A (en) * | 2008-06-23 | 2011-05-18 | 旭硝子株式会社 | Backsheet for solar cell module and solar cell module |
| CN202487618U (en) * | 2012-02-10 | 2012-10-10 | 无锡中洁能源技术有限公司 | Nano-plasma modified fluorine-containing highly weather-proof solar cell back film |
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Denomination of invention: Nano plasma modified fluorine-containing highly weather-resistant solar cell back film and production process thereof Effective date of registration: 20141226 Granted publication date: 20140402 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: Wuxi Zhongjie Energy Technology Co., Ltd. Registration number: 2014990001149 |
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Date of cancellation: 20171120 Granted publication date: 20140402 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: Wuxi Zhongjie Energy Technology Co., Ltd. Registration number: 2014990001149 |
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