CN105576064B - One kind is without glue transparent solar cell backboard - Google Patents
One kind is without glue transparent solar cell backboard Download PDFInfo
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- CN105576064B CN105576064B CN201610019898.6A CN201610019898A CN105576064B CN 105576064 B CN105576064 B CN 105576064B CN 201610019898 A CN201610019898 A CN 201610019898A CN 105576064 B CN105576064 B CN 105576064B
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- transparent
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- base layer
- transparent base
- film layer
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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
- 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
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Abstract
Disclosed one kind is without glue transparent solar cell backboard, including transparent base layer, weather-resisting transparent coating and weather-resisting transparent film layer has been respectively coated in the transparent base layer both sides, carried out between wherein described weatherability transparent film layer and transparent base layer using transparent non-gel coating be bonded, the transparent base layer is the coextrusion polyester film of ABA three-deckers, its thickness is 0.01 ~ 3mm, wherein A thickness degree is the 5 ~ 15% of transparent base layer thickness, B thickness degree is the 70 ~ 90% of transparent base layer thickness, contains resist blocking and that filler particles inside the A layers.The backboard of the present invention has the characteristics of low cost, high-transmittance low haze.
Description
Technical field
The present invention relates to a kind of solar cell backboard, and in particular to one kind is without glue transparent solar cell backboard.
Background technology
Field of photovoltaic power generation, the efficiency power generation of component is always the trend of technology development, and the appearance of double-side efficient battery,
The generated energy of component can be greatly promoted.In traditional components, the main flow of Normal back plate occuping market all the time, and solar double-glass assemblies go out
It is existing, expand application of the double-side efficient battery in field of photovoltaic power generation so that photovoltaic generating electricity on two sides becomes possibility.It is but simultaneously double
There is fragment rate height, the optical attenuation that overall weight is big, traditional laminating efficiency is low and serious in glass component, this is also certain
Its application is constrained in degree.
Therefore there is a kind of transparent back panel and then avoid above mentioned problem well so that its in BIPV,
Glass curtain wall, greenhouse greenhouse and highway, railway, airport etc. need to use with unique advantage in the environment of strict anti-dazzle.
Mechanical property of the transparent back panel except Normal back plate need to be met, weatherability, outside water vapor transmittance, also need to ensure that there is higher printing opacity
Rate and relatively low mist degree, and excellent resistance to UV aging.
Conventional transparent back panel is mainly thick by transparent fluorine-contained film thick two-sided 0.02mm ~ 0.03mm, 0.18 ~ 0.30mm
Transparent PET transparent base layer and the thick uvioresistant glue of 0.001mm ~ 0.03mm be combined.The backboard heat-conducting effect is poor, thoroughly
The bright cost of raw material is high, and the backboard transparency of preparation is relatively low, and mist degree is poor, so as to largely have impact on the generating of battery effect
Rate.
The content of the invention
The problem to be solved in the present invention is to provide a kind of low cost, and high transparency low haze is carried on the back without glue transparent solar cell
Plate.
To achieve the above object, the technical scheme that the present invention takes is as follows：It is a kind of without glue transparent solar cell backboard,
Including transparent base layer, weather-resisting transparent coating and weather-resisting transparent film layer has been respectively coated in the transparent base layer both sides, wherein described resistance to
Carried out using transparent non-gel coating be bonded between time property transparent film layer and transparent base layer, the transparent base layer is ABA three-deckers
Coextrusion polyester film, its thickness is 0.01 ~ 3mm, and wherein A thickness degree is that 5 ~ 15%, the B thickness degree of transparent base layer thickness is
Resist blocking and that filler particles are contained in the 70 ~ 90% of transparent base layer thickness, the A layers inside.
The resist blocking and that filler particles are silica, calcium phosphate, kaolin, barium sulfate, the organic filling particulates of PMMA, PS
One kind in organic filling particulate, PMMA coated inorganic particulate core shell structure particulates, particle size are 1 ~ 6 μm.
The weather-resisting transparent coating is ether type FEVE copolymeric perfluorocarbon coating, polyflon, polytrifluorochloroethylene tree
Fat, acrylic resin, polyurethane, epoxy resin, one kind in silicon rubber, its thickness is 0.0001 ~ 0.05mm.
The weather-resisting transparent film layer is modified transparent Teflon film layer, and modified polytrifluorochloroethylene film layer is modified saturating
Bright ethylene-tetrafluoroethylene copolymer film, transparent high durable polyester film, transparent modified polymethyl methacrylate film layer, thoroughly
Bright polycarbonate film layers, one kind of modified transparent polyester film layer, its thickness is 0.001 ~ 0.3mm.
The transparent non-gel coating is amino-alkyl silicane coupling agent, alkylene silane coupler, methacryloxypropyl alkene
Silane coupler, one in epoxyhydrocarbyl silane coupler, more sulphur hydrocarbyl si lanes coupling agents, the coupling agent of amino-alkyl silicane containing season
Kind, its thickness is 0.01 ~ 5 μm.
Beneficial effect：Disclosed one kind has the advantages that without glue transparent solar cell backboard：This
The backboard of invention uses six layer structure, by the way that basic unit is designed into ABA three-deckers, increases resist blocking and that filling only inside A layers
Particle enables film to reduce the usage amounts of filler particles while basic resistance to blocking is met, so as to improve transparent base layer
Light transmittance and mist degree, and greatly reduce cost.The weather-resisting transparent coating of transparent base layer applied atop has high durable and resisted
Ultraviolet function, conventional macromolecular adhesive is substituted using transparent non-gel coating, and thermal conductivity is improved except reducing back plate thickness
Outside, the transparency of backboard is also substantially increased, reduces the mist degree of backboard, the application employs one kind and is free of polymer bond layer
Special construction, the thickness of transparent back panel can be reduced, the capacity of heat transmission for improving backboard and the transparency for improving backboard are simultaneously effective
Control backboard mist degree, while prepared transparent components are easier to reprocess, and the cost of making also has and largely reduced,
Structure design without glue backboard also reduces the usage amount of volatile solvent, reduces the cost of solvent recovery processing, also more
Environmental protection.
Brief description of the drawings
Fig. 1 is the structural representation of battery back-sheet of the present invention.
Embodiment
Below in conjunction with the accompanying drawing of the present invention, clear, complete description is carried out to technical scheme.
Disclosed one kind is without glue transparent solar cell backboard, including transparent base layer 1, the transparent base layer 1
Weather-resisting transparent coating 2 and weather-resisting transparent film layer 3 has been respectively coated in both sides, wherein the weatherability transparent film layer 3 and transparent base layer 1
Between be bonded using transparent non-gel coating 5.
Particularly, the transparent base layer is ABA three-deckers, its by be not added with resist blocking and that filler particles B layers 11 and
The A layers 11 for being respectively placed in the both sides of B layers 12 with the common extrusion of B layers 12 collectively form integrated film layer, and wherein its thickness of B layers 12 is
The thickness of 70 ~ 90%, A layers 11 of bright basic unit is the 5 ~ 15% of transparent base layer, and resist blocking and that filler particles are added only in the A layers 11
Design greatly reduces the usage amount of masterbatch section, while improves the light transmittance of transparent base layer again, reduces transparent base layer
Mist degree.
The transparent base layer thickness is 0.01 ~ 3mm, and preferred thickness is 0.2 ~ 0.3mm, optimum thickness 0.2mm,
0.225mm and 0.25mm, wherein A thickness degree are 0.5 ~ 1500um, and preferred thickness is 10 ~ 45um, optimum thickness 10um, 20um
And 30um, B thickness degree are 7 ~ 2700um, preferred thickness is 140 ~ 270um, optimum thickness 180um, 200um and 230um.
The resist blocking and that filler particles are silica, calcium phosphate, kaolin, barium sulfate, the organic filling particulates of PMMA, PS
One kind in organic filling particulate, PMMA coated inorganic particulate core shell structure particulates, particle size are 1 ~ 6 μm.
The weather-resisting transparent coating is ether type FEVE copolymeric perfluorocarbon coating, polyflon, polytrifluorochloroethylene tree
Fat, acrylic resin, polyurethane, epoxy resin, one kind in silicon rubber, its thickness are 0.0001 ~ 0.05um, preferably 0.002 ~
0.01mm, optimum thickness 0.002mm, 0.005mm, 0.01mm, 0.015mm, 0.02mm, the weather-resisting transparent coating in the application
Thickness control the thickness of backboard on the basis of weatherability is met, can be reduced in above-mentioned size range, improve backboard
Radiating effect and the light transmittance for accordingly improving backboard, reduce backboard mist degree, while fluororine-carbon coating is thin compared to TPO internal layer
Film is also easier to reprocess.
The weather-resisting transparent film layer is modified transparent Teflon film layer, and modified polytrifluorochloroethylene film layer is modified saturating
Bright ethylene-tetrafluoroethylene copolymer film, transparent high durable polyester film, transparent modified polymethyl methacrylate film layer, thoroughly
Bright polycarbonate film layers, one kind of modified transparent polyester film layer, its thickness be 0.001 ~ 0.3mm, preferred thickness for 0.02 ~
0.03mm, optimum thickness 0.02mm, 0.0225mm, 0.025mm, the thickness limit of weather-resisting transparent film layer is above-mentioned in the application
The weatherability requirements of transparent back panel can be better met in size range, moreover it is possible to the preferably light transmittance and mist of control backboard
Degree, while it is well positioned to meet the requirement of existing process.
The transparent non-gel coating is amino-alkyl silicane coupling agent, alkylene silane coupler, methacryloxypropyl alkene
Silane coupler, one in epoxyhydrocarbyl silane coupler, more sulphur hydrocarbyl si lanes coupling agents, the coupling agent of amino-alkyl silicane containing season
Kind, its thickness is 0.01 ~ 5 μm, and preferred thickness is 0.1 ~ 1 μm, and optimum thickness is 0.25 μm, 0.5 μm, 0.75 μm, 1 μm.
Prepared by the present invention has good uvioresistant performance and weather resistance without glue transparent solar cell backboard, irradiation
120KWH post yellowing index △ b<4, double 85（85 DEG C, 85%）Hydrothermal aging post yellowing index △ b<4, backboard does not have macromolecule glue
Adhensive layer, the thickness of backboard can be reduced, improve backboard thermal conductivity, while improve backboard transparency, reduce backboard mist degree,
Also decrease to some degree in cost, in addition backboard the use of volatile solvent is also reduced using the structure design without glue
Amount, the cost for reducing solvent recovery processing are also more environmentally friendly.Using so that reprocessing for component becomes different for weathering resistance coatings, it is weather-proof
Performance is also more excellent.
One embodiment of the invention is described in detail above, but the content is only the invention
Preferred embodiment, it is impossible to be considered as the practical range for limiting the invention.It is all to be made according to the invention application range
Equivalent change with improve etc., belong within the patent covering scope of the invention.
Claims (3)
1. one kind is without glue transparent solar cell backboard, it is characterised in that：Including transparent base layer, the transparent base layer both sides difference
Coated with weather-resisting transparent coating and weather-resisting transparent film layer, wherein using transparent between the weatherability transparent film layer and transparent base layer
Non- gel coating is bonded, and the transparent base layer is the coextrusion polyester film of ABA three-deckers, and its thickness is 0.01~3mm,
Wherein A thickness degree is that 5~15%, the B thickness degree of transparent base layer thickness is the 70~90% of transparent base layer thickness, in the A layers
Resist blocking and that filler particles are contained in portion, and the resist blocking and that filler particles are silica, calcium phosphate, kaolin, barium sulfate, PMMA have
One kind in machine filling particulate, the organic filling particulates of PS, PMMA coated inorganic particulate core shell structure particulates, particle size are 1~6
μm, the transparent non-gel coating is amino-alkyl silicane coupling agent, alkylene silane coupler, methacryloxypropyl olefinic silane idol
Join agent, one kind in epoxyhydrocarbyl silane coupler, more sulphur hydrocarbyl si lanes coupling agents, the coupling agent of amino-alkyl silicane containing season, it is thick
Spend for 0.01~5 μm.
2. one kind according to claim 1 is without glue transparent solar cell backboard, it is characterised in that：The weather-resisting transparent applies
Layer is ether type FEVE copolymeric perfluorocarbon coating, polyflon, daiflon, acrylic resin, polyurethane, ring
Oxygen tree fat, one kind in silicon rubber, its thickness is 0.0001~0.05mm.
3. one kind according to claim 1 is without glue transparent solar cell backboard, it is characterised in that：The weather-resisting transparent film
Layer is modified transparent Teflon film layer, modified polytrifluorochloroethylene film layer, it is thin to be modified transparent vinyl-TFE copolymer
Film, transparent high durable polyester film, transparent modified polymethyl methacrylate film layer, clear polycarbonate film layer, modification are transparent
One kind of polyester film, its thickness are 0.001~0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019898.6A CN105576064B (en) | 2016-01-13 | 2016-01-13 | One kind is without glue transparent solar cell backboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019898.6A CN105576064B (en) | 2016-01-13 | 2016-01-13 | One kind is without glue transparent solar cell backboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105576064A CN105576064A (en) | 2016-05-11 |
| CN105576064B true CN105576064B (en) | 2018-02-09 |
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ID=55885991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610019898.6A Active CN105576064B (en) | 2016-01-13 | 2016-01-13 | One kind is without glue transparent solar cell backboard |
Country Status (1)
| Country | Link |
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| CN (1) | CN105576064B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108822706A (en) * | 2018-05-04 | 2018-11-16 | 苏州奥美材料科技有限公司 | A kind of weatherability polycarbonate coating film |
| CN110828596B (en) * | 2019-11-18 | 2022-08-16 | 苏州浩纳新材料科技有限公司 | Transparent polyester solar backboard and preparation method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5440166B2 (en) * | 2007-12-11 | 2014-03-12 | 東レ株式会社 | Laminated film |
| WO2009157545A1 (en) * | 2008-06-26 | 2009-12-30 | 三井・デュポンポリケミカル株式会社 | Laminated sheet for solar cell, and solar cell module comprising the same |
| KR101265171B1 (en) * | 2009-07-15 | 2013-05-27 | 니혼 하츠쵸 가부시키가이샤 | Backside protective sheet for solar cells and process for production of same |
| CN103311342B (en) * | 2013-05-22 | 2016-05-18 | 宁波长阳科技有限公司 | A kind of solar cell backboard film and preparation method thereof |
| CN203826402U (en) * | 2013-12-30 | 2014-09-10 | 苏州赛伍应用技术有限公司 | Transparent solar cell backboard and solar cell assembly |
| CN205335271U (en) * | 2016-01-13 | 2016-06-22 | 中天光伏材料有限公司 | There is not transparent solar cell back sheet of glue |
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2016
- 2016-01-13 CN CN201610019898.6A patent/CN105576064B/en active Active
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| Publication number | Publication date |
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| CN105576064A (en) | 2016-05-11 |
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