CN102931261B - A kind of photovoltaic module solar cell notacoria and processing technology thereof - Google Patents
A kind of photovoltaic module solar cell notacoria and processing technology thereof Download PDFInfo
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- CN102931261B CN102931261B CN201210402804.5A CN201210402804A CN102931261B CN 102931261 B CN102931261 B CN 102931261B CN 201210402804 A CN201210402804 A CN 201210402804A CN 102931261 B CN102931261 B CN 102931261B
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- solar cell
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- 238000005516 engineering process Methods 0.000 title claims description 21
- 239000010410 layer Substances 0.000 claims abstract description 42
- 239000002344 surface layer Substances 0.000 claims abstract description 40
- 229920000642 polymer Polymers 0.000 claims abstract description 36
- 239000011127 biaxially oriented polypropylene Substances 0.000 claims abstract description 16
- 229920006378 biaxially oriented polypropylene Polymers 0.000 claims abstract description 16
- 238000010276 construction Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 20
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 13
- 230000004913 activation Effects 0.000 claims description 11
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 claims description 11
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 7
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 abstract description 5
- 229920002647 polyamide Polymers 0.000 abstract description 5
- 238000010292 electrical insulation Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000004078 waterproofing Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 11
- 238000000576 coating method Methods 0.000 description 11
- 229910052731 fluorine Inorganic materials 0.000 description 8
- 239000011737 fluorine Substances 0.000 description 8
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 150000001408 amides Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910021341 titanium silicide Inorganic materials 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
- H01L31/049—Protective back sheets
-
- 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)
- Laminated Bodies (AREA)
- Photovoltaic Devices (AREA)
Abstract
A kind of photovoltaic module solar cell notacoria, comprise surface layer, basic unit, bottom, described surface layer is fluororesin polymer layer, and described basic unit is polyamide PA layer or the BOPP layer of sandwich construction, and described bottom is fluororesin polymer layer.A kind of photovoltaic module solar cell notacoria provided by the invention; there is high-weatherability, chemical resistance, high electrical insulation properties; the solar battery back film of high water proofing property, is conducive to protection solar module and corrodes from the external world, extend the useful life of solar module.
Description
Technical field
The present invention relates to solar cell notacoria field, particularly a kind of photovoltaic module solar cell notacoria.Also relate to a kind of processing technology of this solar cell notacoria simultaneously.
Background technology
Solar panel is a laminated construction normally, is generally to be made up of several macromolecular material compound, but the solar battery back film coat side made of this technology has waveform, and cause being coated with interlayer and do not compact, device durability is not high.And notacoria also needs after completing to encapsulate with EVA adhesive film again, add the price operation of solar module, sealing property is not high.If Chinese Patent Application No. is No. CN201010270646.3, publication date is on April 6th, 2011, publication number is the application for a patent for invention of CN102005491A, disclose high-fluoride mixcrystal coating solar-energy photovoltaic cell back film and manufacture method thereof, this notacoria comprises the first basic unit set gradually from top to bottom, first high fluorine synthetic coating, second basic unit, pet layer, 3rd basic unit, the seven-layer structure of the second high fluorine synthetic coating and the 4th basic unit, between first basic unit's lower surface and second basic unit's upper surface, coating arranges the first high fluorine synthetic coating, between 3rd basic unit's lower surface and the 4th basic unit's upper surface, coating arranges the second high fluorine synthetic coating, between the lower surface of the second basic unit and the upper surface of the 3rd basic unit, coating arranges pet layer, the mixture with the nanometer silicon carbide of arbitrary proportion mixing and nano aluminum nitride is added respectively in described first high fluorine synthetic coating and the second high fluorine synthetic coating.Such scheme makes the solar PV high-fluorine mixcrystal coating back film of 7 Rotating fields by manufacturing high-accuracy non-ripple paint-on technique, the process of using plasma titanium silicide nano treatment technology, makes each layer surface hydrophilic, improves adhesive force and the caking property of each interlayer.But due to fluorine material self character, it is high to there is surface energy in it, surface hydrophobic, and adhesive property is poor.The adhesive property of this backboard and EVA reduces, and makes the bond processing technique of backboard and EVA become complicated.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned the deficiencies in the prior art; one is provided to have wet and heat ageing resistant; hydrolysis; good water vapor barrier property, high insulating property; high strength, dimensionally stable; the solar cell notacoria that the safety of easy machine-shaping is firm, is conducive to protection solar module and corrodes from the external world, extend the useful life of solar cell.
Another technical problem to be solved by this invention is the processing technology providing a kind of photovoltaic module solar cell notacoria, and this technological method for processing is simple and convenient.
Main technical schemes according to a kind of photovoltaic module solar cell notacoria provided by the invention is: comprise surface layer, basic unit, bottom, described surface layer is fluororesin polymer layer, described basic unit is polyamide PA layer or the BOPP layer of sandwich construction, and described bottom is fluororesin polymer layer.
A kind of photovoltaic module solar cell notacoria provided by the invention also adopts following attached technical scheme:
Described surface layer is the fluororesin polymer of thickness 0.005mm-0.1mm.
Described fluororesin polymer be tetrafluoroethene, hexafluoropropylene, vinylidene one or more.
The thickness of described basic unit is 0.01mm-0.6mm, and each layer thickness is identical or different.
Described basic unit is PA layer or the BOPP layer of three-decker.
Described bottom is the fluororesin polymer of thickness 0.005mm-0.1mm.
Described fluororesin polymer be tetrafluoroethene, hexafluoropropylene, vinylidene one or more.
Present invention also offers a kind of processing technology of photovoltaic module solar cell notacoria, mainly comprise the following steps:
(1), by multilayer polyamide PA extrude after 215-220 degrees Centigrade, form basic unit;
(2) process of plasma corona, by the upper and lower surface of basic unit is carried out, activation substrate surface;
(3) a roller coat fluororesin polymer, to the basic unit after activation, through 50 ~ 150 degrees Celsius be heating and curing, forms surface layer;
(4), to solidifying the later basic unit's another side roller coat fluororesin polymer of surface layer, through 50 ~ 200 degrees Celsius be heating and curing, bottom is formed;
(5), the process of plasma corona is carried out to the surface layer after solidification and bottom.
Present invention also offers a kind of processing technology of photovoltaic module solar cell notacoria, can also comprise the following steps:
(1), by multilayer BOPP extrude after 160-170 degrees Centigrade, form basic unit;
(2) process of plasma corona, by the upper and lower surface of basic unit is carried out, activation substrate surface;
(3) a roller coat fluororesin polymer, to the basic unit after activation, through 50 ~ 150 degrees Celsius be heating and curing, forms surface layer;
(4), to solidifying the later basic unit's another side roller coat fluororesin polymer of surface layer, through 50 ~ 200 degrees Celsius be heating and curing, bottom is formed;
(5), the process of plasma corona is carried out to the surface layer after solidification and bottom.
According to a kind of photovoltaic module solar cell notacoria provided by the invention and processing technology thereof, there is following outstanding advantage:
(1) product film-forming process is simple, and cost is low, easily processes;
(2) adopt polyamide PA or BOPP as basic unit, make notacoria have wet and heat ageing resistant, fatigue durability, high water vapor barrier property, dimensional stability is good;
(3) caking property of each layer of solar cell notacoria prepared by processing technology of the present invention is good, and this technique can realize continuous prodution, improves production efficiency, reduces cost.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of photovoltaic module solar cell notacoria of the present invention.
Embodiment:
In the present invention, fluororesin polymer be tetrafluoroethene, hexafluoropropylene, vinylidene one or more; PA is polyamide; BOPP is bidirectional stretching polypropylene film.
See Fig. 1, according to photovoltaic module solar cell notacoria provided by the invention, comprising: surface layer fluororesin polymer layer, basic unit PA or BOPP, bottom fluororesin polymer layer.Basic unit PA or BOPP is three-decker, and every layer thickness can be identical, also can be different.Three strata acid amides PA are extruded after 215-220 degrees Centigrade and forms basic unit, also can be extruded after 160-170 degrees Centigrade by three layers of BOPP and form basic unit, then the process of plasma corona is carried out to substrate surface, activation substrate surface, at the fluororesin-coated polymer of the one side of basic unit, through the formation surface layer that is heating and curing of 50 ~ 150 degrees Celsius, at the fluororesin-coated polymer of the another side of basic unit, through the formation bottom that is heating and curing of 50 ~ 150 degrees Celsius, carry out the process of plasma corona on the surface of surface layer and bottom.Certainly, the basic unit in the present invention also can be four layers or five layers etc., is preferably three to six Rotating fields.
The thickness of surface layer 1 described in the present invention is 0.005mm-0.1mm, wherein, is preferably 0.030mm-0.1mm.Concrete numerical value can elect 0.030mm, 0.050mm, 0.070mm, 0.090mm as.The thickness of described surface layer 1 is limited in above-mentioned scope, can better makes surface layer 1 play a role, improve the insulated barriers of notacoria further.The selection of this preferred version and concrete numerical value can better meet the requirement of the performance for surface layer 1.
The thickness of bottom 2 described in the present invention is 0.005mm-0.1mm, wherein, is preferably 0.010mm-0.050mm.Concrete numerical value can elect 0.010mm, 0.020mm, 0.030mm, 0.040mm as.The thickness of described bottom 2 is limited in above-mentioned scope, can better makes bottom 2 play a role, that improve further notacoria with caking property that is EVA.The selection of this preferred version and concrete numerical value can better meet the requirement of the performance for bottom 2.
The thickness of basic unit 3 described in the present invention is 0.01mm-0.6mm, and wherein, be preferably 0.25mm-0.45mm, concrete numerical value can elect 0.25mm, 0.30mm, 0.35mm, 0.45mm as; Each thickness in monolayer is 0.003mm-0.2mm, wherein be preferably 0.05mm-0.2mm, concrete numerical value can elect 0.05mm, 0.07mm, 0.1mm, 0.15mm as, the thickness of described basic unit 3 is limited in above-mentioned scope, can better Shi Shang basic unit 3 play a role, make notacoria have higher intensity, meanwhile, be also beneficial to the raising of processing and overall performance.
Embodiment one:
In photovoltaic module solar cell notacoria, the thickness of surface layer 1 is 0.010mm, and the thickness of bottom 2 is 0.010mm, and the thickness of basic unit 3 is 0.25mm.Surface layer is tetrafluoroethene, bottom is tetrafluoroethene.Basic unit 3 is three layers of PA layer.
Embodiment two:
In photovoltaic module solar cell notacoria, the thickness of surface layer 1 is 0.020mm, and the thickness of bottom 2 is 0.020mm, and the thickness of basic unit 3 is 0.25mm.Surface layer be tetrafluoroethene, hexafluoropropylene, vinylidene according to the polymer of 1:1:1, bottom is tetrafluoroethene.Basic unit 3 is three layers of PA layer.
Embodiment three:
In photovoltaic module solar cell notacoria, the thickness of surface layer 1 is 0.030mm, and the thickness of bottom 2 is 0.020mm, and the thickness of basic unit 3 is 0.30mm.Surface layer is tetrafluoroethene, and bottom is that tetrafluoroethene, hexafluoropropylene, vinylidene are according to the polymer of 1:1:1.Basic unit 3 is three layers of PA layer.
Embodiment four:
In photovoltaic module solar cell notacoria, the thickness of surface layer 1 is 0.040mm, and the thickness of bottom 2 is 0.020mm, and the thickness of basic unit 3 is 0.35mm.Surface layer is tetrafluoroethene, and bottom is that tetrafluoroethene, hexafluoropropylene, vinylidene are according to the polymer of 1:1:1.Basic unit 3 is three layers of BOPP layer.
Embodiment five:
In photovoltaic module solar cell notacoria, the thickness of surface layer 1 is 0.040mm, and the thickness of bottom 2 is 0.040mm, and the thickness of basic unit 3 is 0.45mm.Surface layer be tetrafluoroethene, hexafluoropropylene, vinylidene according to the polymer of 1:1:1, bottom is that tetrafluoroethene, hexafluoropropylene, vinylidene are according to the polymer of 1:1:1.Basic unit 3 is three layers of BOPP layer.
In above-described embodiment 1-5, described fluororesin polymer be PVF, hexafluoropropylene, vinylidene one or more, the inferior position of material self can be overcome, give copolymer excellent performance.Thus other new embodiments can be formed according to each layer thickness is different with polymer ratio.
As shown in the table according to the performance data of the photovoltaic module solar cell notacoria in each embodiment of the present invention:
By the known photovoltaic module solar cell notacoria of the present invention of data in table, there is excellent performance.
According to the processing technology of a kind of photovoltaic module solar cell notacoria provided by the invention, mainly comprise the following steps:
(1), by three strata acid amides PA extrude after 215-220 degrees Centigrade, form basic unit;
(2) process of plasma corona, by the upper and lower surface of basic unit is carried out, activation substrate surface;
(3) a roller coat fluororesin polymer, to the basic unit after activation, through 50 ~ 150 degrees Celsius be heating and curing, forms surface layer;
(4), to solidifying the later basic unit's another side roller coat fluororesin polymer of surface layer, through 50 ~ 200 degrees Celsius be heating and curing, bottom is formed;
(5), the process of plasma corona is carried out to the surface layer after solidification and bottom.
According to the processing technology of a kind of photovoltaic module solar cell notacoria provided by the invention, can also comprise the following steps:
(1), by three layers of BOPP extrude after 160-170 degrees Centigrade, form basic unit;
(2) process of plasma corona, by the upper and lower surface of basic unit is carried out, activation substrate surface;
(3) a roller coat fluororesin polymer, to the basic unit after activation, through 50 ~ 150 degrees Celsius be heating and curing, forms surface layer;
(4), to solidifying the later basic unit's another side roller coat fluororesin polymer of surface layer, through 50 ~ 200 degrees Celsius be heating and curing, bottom is formed;
(5), the process of plasma corona is carried out to the surface layer after solidification and bottom.In the above two embodiments, PA or BOPP also can be sandwich construction, such as four layers or five layers, is preferably three to six layers.Extrude after sandwich construction heating, form basic unit.Above-mentioned technics comparing of the present invention is simple, can realize continuous prodution, improve production efficiency, reduce the production cost of photovoltaic module, be beneficial to marketing.Photovoltaic module solar cell notacoria of the present invention has higher mechanical strength, fatigue resistance, wet and heat ageing resistant, high water vapor barrier property, high strength, dimensionally stable, and the feature of easily processing, ensure that the assembly use of more than 25 years.
Claims (8)
1. a photovoltaic module processing technology for solar cell notacoria, mainly comprises the following steps:
(1), by multilayer BOPP extrude after 160-170 degrees Centigrade, form basic unit;
(2) process of plasma corona, by the upper and lower surface of basic unit is carried out, activation substrate surface;
(3) a roller coat fluororesin polymer, to the basic unit after activation, through 50 ~ 150 degrees Celsius be heating and curing, forms surface layer;
(4), to solidifying the later basic unit's another side roller coat fluororesin polymer of surface layer, through 50 ~ 200 degrees Celsius be heating and curing, bottom is formed;
(5), the process of plasma corona is carried out to the surface layer after solidification and bottom.
2. the photovoltaic module solar cell notacoria that obtains of the processing technology of photovoltaic module solar cell notacoria according to claim 1, it is characterized in that: comprise surface layer, basic unit, bottom, described surface layer is fluororesin polymer layer, described basic unit is the BOPP layer of sandwich construction, and described bottom is fluororesin polymer layer.
3. the photovoltaic module solar cell notacoria that obtains of the processing technology of photovoltaic module solar cell notacoria according to claim 2, is characterized in that: described surface layer is the fluororesin polymer of thickness 0.005mm-0.1mm.
4. the photovoltaic module solar cell notacoria that obtains of the processing technology of photovoltaic module solar cell notacoria according to claim 3, is characterized in that: described fluororesin polymer be tetrafluoroethene, hexafluoropropylene, vinylidene one or more.
5. the photovoltaic module solar cell notacoria that obtains of the processing technology of photovoltaic module solar cell notacoria according to claim 2, is characterized in that: the thickness of described basic unit is 0.01mm-0.6mm, and each layer thickness is identical or different.
6. the photovoltaic module solar cell notacoria that obtains of the processing technology of photovoltaic module solar cell notacoria according to claim 2, is characterized in that: described basic unit is the BOPP layer of three-decker.
7. the photovoltaic module solar cell notacoria that obtains of the processing technology of photovoltaic module solar cell notacoria according to claim 2, is characterized in that: described bottom is the fluororesin polymer of thickness 0.005mm-0.1mm.
8. the photovoltaic module solar cell notacoria that obtains of the processing technology of photovoltaic module solar cell notacoria according to claim 7, is characterized in that: described fluororesin polymer is the mixed copolymer of tetrafluoroethene, hexafluoropropylene and vinylidene.
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| CN103560162B (en) * | 2013-11-20 | 2017-02-08 | 无锡中洁能源技术有限公司 | Solar cell back board and manufacturing method thereof |
| CN107978651B (en) * | 2017-11-21 | 2020-07-07 | 扬州本色光艺照明科技有限公司 | Solar cell back plate and manufacturing method thereof |
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| CN101645465A (en) * | 2009-08-31 | 2010-02-10 | 苏州福斯特光伏材料有限公司 | Solar cell module back veneer material |
| CN101814533A (en) * | 2009-02-24 | 2010-08-25 | 苏州中来太阳能材料技术有限公司 | Fluororesin membrane with high activity, preparation process thereof and solar cell |
| CN102005491A (en) * | 2010-08-30 | 2011-04-06 | 杭州联合新材科技股份有限公司 | High-fluorine mixcrystal coating solar photovoltaic cell back film and manufacturing method thereof |
| CN102569452A (en) * | 2010-10-20 | 2012-07-11 | 苏州尚善新材料科技有限公司 | Polymer back panel of solar battery assembly and manufacture method of polymer back panel |
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| CN1322027C (en) * | 2003-05-06 | 2007-06-20 | 三菱瓦斯化学株式会社 | Fuel-barrier polyamide resin and multilayer shaped article |
| CN101661962B (en) * | 2008-08-29 | 2012-05-09 | 苏州中来光伏新材股份有限公司 | Solar battery back film with high cohesiveness and processing process |
| CN101823355B (en) * | 2009-03-03 | 2013-09-25 | E.I.内穆尔杜邦公司 | Polymer laminated film and solar panel using laminated film |
| CN102492294A (en) * | 2011-12-19 | 2012-06-13 | 佛山佛塑科技集团股份有限公司 | Biaxially oriented polyamide film and preparation method thereof |
| CN202384367U (en) * | 2011-12-30 | 2012-08-15 | 苏州中来光伏新材股份有限公司 | Flexible front panel for solar cells |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814533A (en) * | 2009-02-24 | 2010-08-25 | 苏州中来太阳能材料技术有限公司 | Fluororesin membrane with high activity, preparation process thereof and solar cell |
| CN101645465A (en) * | 2009-08-31 | 2010-02-10 | 苏州福斯特光伏材料有限公司 | Solar cell module back veneer material |
| CN102005491A (en) * | 2010-08-30 | 2011-04-06 | 杭州联合新材科技股份有限公司 | High-fluorine mixcrystal coating solar photovoltaic cell back film and manufacturing method thereof |
| CN102569452A (en) * | 2010-10-20 | 2012-07-11 | 苏州尚善新材料科技有限公司 | Polymer back panel of solar battery assembly and manufacture method of polymer back panel |
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