CN109192800B - Fluorine-containing thin-film solar cell front film and manufacturing process thereof - Google Patents
Fluorine-containing thin-film solar cell front film and manufacturing process thereof Download PDFInfo
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- CN109192800B CN109192800B CN201810773711.0A CN201810773711A CN109192800B CN 109192800 B CN109192800 B CN 109192800B CN 201810773711 A CN201810773711 A CN 201810773711A CN 109192800 B CN109192800 B CN 109192800B
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- 239000010408 film Substances 0.000 title claims abstract description 110
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 47
- 239000011737 fluorine Substances 0.000 title claims abstract description 47
- 239000010409 thin film Substances 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000010410 layer Substances 0.000 claims abstract description 91
- 239000012790 adhesive layer Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 30
- 230000008021 deposition Effects 0.000 claims abstract description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000032683 aging Effects 0.000 claims abstract description 9
- 230000007062 hydrolysis Effects 0.000 claims abstract description 9
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 9
- 238000002834 transmittance Methods 0.000 claims abstract description 9
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 8
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 8
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 7
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims abstract description 6
- 239000002033 PVDF binder Substances 0.000 claims abstract description 4
- 229920006129 ethylene fluorinated ethylene propylene Polymers 0.000 claims abstract description 4
- 229920011301 perfluoro alkoxyl alkane Polymers 0.000 claims abstract description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 4
- 238000000151 deposition Methods 0.000 claims description 25
- 229910052809 inorganic oxide Inorganic materials 0.000 claims description 21
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
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- 238000005229 chemical vapour deposition Methods 0.000 claims description 6
- 239000004611 light stabiliser Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000005240 physical vapour deposition Methods 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 150000002500 ions Chemical class 0.000 claims description 5
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- -1 β n-octadecyl (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate Chemical compound 0.000 claims description 4
- GPNYZBKIGXGYNU-UHFFFAOYSA-N 2-tert-butyl-6-[(3-tert-butyl-5-ethyl-2-hydroxyphenyl)methyl]-4-ethylphenol Chemical compound CC(C)(C)C1=CC(CC)=CC(CC=2C(=C(C=C(CC)C=2)C(C)(C)C)O)=C1O GPNYZBKIGXGYNU-UHFFFAOYSA-N 0.000 claims description 3
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical group OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 3
- 150000001718 carbodiimides Chemical class 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000003851 corona treatment Methods 0.000 claims description 2
- 238000009832 plasma treatment Methods 0.000 claims description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 9
- 230000006750 UV protection Effects 0.000 abstract description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 239000004642 Polyimide Substances 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 3
- 229910001887 tin oxide Inorganic materials 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- PEVRKKOYEFPFMN-UHFFFAOYSA-N 1,1,2,3,3,3-hexafluoroprop-1-ene;1,1,2,2-tetrafluoroethene Chemical compound FC(F)=C(F)F.FC(F)=C(F)C(F)(F)F PEVRKKOYEFPFMN-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920006260 polyaryletherketone Polymers 0.000 description 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 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
-
- 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
- H01L31/0445—PV modules or arrays of single PV cells including thin film solar cells, e.g. single thin film a-Si, CIS or CdTe solar cells
-
- 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
-
- 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
Abstract
The invention discloses a fluorine-containing thin-film solar cell front film and a manufacturing process thereof, the fluorine-containing thin-film solar cell front film comprises a fluorine-containing material film layer, an adhesive layer, an inorganic deposition layer and an insulating layer, wherein the fluorine-containing material film layer, the adhesive layer, the inorganic deposition layer and the insulating layer are sequentially arranged from top to bottom, the fluorine-containing material film layer comprises at least one of PVDF, PFA, ETFE and EFEP, the inorganic deposition layer comprises at least one of silicon dioxide, aluminum oxide and titanium dioxide, and the insulating layer comprises at least one of PET and PBT. The fluorine-containing thin-film solar cell front film has the advantages of high water resistance, high light transmittance, strong ultraviolet resistance, good insulativity, difficult aging, high hardness, high strength, hydrolysis resistance and damp and heat resistance; the process can promote the bonding strength of the front film of the thin-film solar cell, ensure that the front film of the thin-film solar cell can endure outdoor severe environment, and improve the use safety of the front film of the thin-film solar cell.
Description
Technical Field
The invention belongs to the technical field of thin films, and particularly relates to a fluorine-containing thin film solar cell front film and a manufacturing process thereof.
Background
The front film of the thin-film solar cell has excellent optical transmittance, water vapor blocking capacity, insulating strength, ultraviolet aging performance, flexibility, wear resistance and the like, and can be used as a substitute material of front plate glass of the thin-film solar cell. The front film of the thin-film solar cell is generally a laminated composite structure and mainly comprises an outer layer material (weather-resistant layer), an adhesive layer, a water-blocking material (inorganic deposition layer) and an inner layer material (insulating layer).
The thin film solar cell can be a silicon thin film solar cell, an inorganic thin film solar cell, a dye-sensitized solar cell, or an organic thin film solar cell.
Since the thin-film solar cell is particularly sensitive to water molecules and needs to withstand exposure of outdoor sunlight and the like as a front film, the front film material is required to have excellent optical transmittance, water vapor barrier capability, insulation strength, ultraviolet aging performance, flexibility, wear resistance and the like. The optimization of each layer material and the matching thereof and the front film manufacturing process are the key technologies of the front film. In order to improve the steam resistance and weather resistance of the front film material, a great number of schemes for improving the structural design of the front film material appear in the prior art.
For example, chinese patent application No. 201280071031.5, published as 2014 11 and 19, published as CN104159478A, discloses a continuous multilayer film comprising a protective layer, a multilayer barrier film, a weatherable sheet, a pressure sensitive adhesive, and a substrate. The protective layer in the scheme is at least one of an ink layer, a metal foil layer and an oxide layer, the multilayer barrier film comprises a polymer layer and an oxide layer, the weather-resistant sheet comprises a fluorine-containing polymer, the pressure-sensitive adhesive is at least one of acrylate, organosilicon, polyisobutylene and urea, and the substrate is at least one of polyethylene glycol terephthalate, polyether ether ketone, polyaryletherketone, polyacrylate, polyetherimide, polyarylsulfone, polyethersulfone, polyamideimide and polyimide. Chinese patent application No. 201510478072.1, published 2015, 12/16/10, publication No. CN 105161558a, discloses a solar cell encapsulation separator, the structure of which comprises: transparent support, wear-resisting filtering layer, gas barrier layer. The transparent support in the scheme is any one of an ethylene-tetrafluoroethylene copolymer (ETFE) film, a perfluoroethylene propylene copolymer (FEP) film, a chloroperfluorethylene copolymer (PCTFE) or a Polyimide (PI) film, the optical filter particles of the wear-resistant filter layer are one or more of antimony-doped tin oxide (ATO), indium-doped tin oxide (ITO), gallium-doped tin oxide (GTO), aluminum-doped zinc oxide (AZO), boron-doped zinc oxide (BZO) or gallium-doped zinc oxide (GZO) nanoparticles, and the gas barrier layer is silicon dioxide. According to the scheme, sunlight can be selectively transmitted, transmission can be converted into electric energy, and meanwhile, light with specific wavelength, which can only improve the working temperature of the solar cell, cannot be converted into electric energy through filtering is provided, so that the temperature of the solar cell module is reduced, and the power generation efficiency is improved. Although patents have been made on the structure of the front film, the materials of the respective layers preferably have deficiencies, the requirements of the materials involved or the manufacturing process have not been mentioned, and the ultraviolet resistance and water resistance of the product have deficiencies.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a fluorine-containing thin-film solar cell front film and a manufacturing process thereof.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a fluorine-containing thin-film solar cell front film comprises a fluorine-containing material film layer, an adhesive layer, an inorganic deposition layer and an insulating layer, wherein the fluorine-containing material film layer, the adhesive layer, the inorganic deposition layer and the insulating layer are sequentially arranged from top to bottom, the fluorine-containing material film layer comprises at least one of PVDF, PFA, ETFE and EFEP, the inorganic deposition layer comprises at least one of silicon dioxide, aluminum oxide and titanium dioxide, the insulating layer comprises at least one of PET and PBT, and the water vapor permeability of the cell front film is 10-2～10-6g/m2D, the optical transmittance of the battery front film is more than or equal to 90 percent, and the ultraviolet aging performance of the battery front film is more than or equal to 30 kWh.m-2The breakdown voltage of the battery front film is 20-40KV, and the volume resistivity of the battery front film is more than or equal to 1.0 x 10-13Omega · m, the surface hardness of the battery front film is 2H-4H, the surface of the battery front film is a matte surface or a smooth surface, the tensile strength of the battery front film is more than or equal to 80MPa, the breaking elongation of the battery front film is more than or equal to 80 percent, the elastic modulus of the battery front film is 2000-5000MPa, and the interlayer peeling strength of the battery front film is more than or equal to 4N/15 mm; the peeling strength of the battery front film and EVA is more than or equal to 40N/15mm, and the constant moist heat of the battery front film is more than or equal to 2000 h.
The adhesive layer comprises at least one of polyester adhesive and polyurethane adhesive.
The adhesive layer further comprises at least one of a curing agent, a UV stabilizer, an antioxidant, a hydrolysis-resistant stabilizer and a catalyst.
The UV stabilizer comprises at least one of a cyanide light stabilizer and a basf light stabilizer.
The antioxidant comprises at least one of 2, 6-di-tert-butyl-p-cresol, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate and 2, 2' -methylene bis (4-ethyl-6-tert-butylphenol).
The hydrolysis-resistant stabilizer comprises at least one of carbodiimide, epoxy compound, long-chain dibasic acid and dihydric alcohol.
The catalyst is triethanolamine.
The manufacturing process of the fluorine-containing thin film solar cell front film is characterized by comprising the following steps of:
step (1): carrying out on-line polarization treatment on the insulating layer;
step (2): plating at least one of silicon dioxide, aluminum oxide and titanium dioxide on the surface of the insulating layer in vacuum by adopting a Physical Vapor Deposition (PVD) or Chemical Vapor Deposition (CVD) method to obtain the insulating layer deposited with inorganic oxide, wherein the inorganic oxide is an inorganic deposition layer;
and (3): polarizing the insulating layer deposited with the inorganic oxide again, wherein the polarizing surface is the inorganic oxide, so that active excited molecules, atoms, ions and radical substances are formed on the surface of the inorganic oxide, and the surface of the inorganic deposition layer is roughened;
and (4): coating the adhesive layer on the inorganic deposition layer in a slit extrusion mode, and passing through an oven on line to realize preliminary drying of the adhesive layer and increase initial adhesion;
and (5): polarizing the fluorine-containing material film layer, and then compounding the fluorine-containing material film layer with the adhesive layer through a compound roller with temperature and pressure control to obtain an initial product;
and (6): and (4) placing the primary product in a double-temperature-control oven for curing to obtain a fluorine-containing thin-film solar cell front film finished product.
The curing time is 1-6 days, and the temperature of the double-temperature-control oven is 30-70 ℃.
The polarization treatment is a plasma treatment or a corona treatment.
The invention has the following beneficial effects: the fluorine-containing thin-film solar cell front film has the advantages of high water resistance, high light transmittance, strong ultraviolet resistance, good insulativity, difficult aging, high hardness, high strength, hydrolysis resistance and damp and heat resistance; the process can promote the bonding strength of the front film of the thin-film solar cell, ensure that the front film of the thin-film solar cell can endure outdoor severe environment, and improve the use safety of the front film of the thin-film solar cell; in the process, the insulating layer deposited with the inorganic oxide is polarized again, the polarized surface is the inorganic oxide, the polarization treatment enables energy obtained from an electric field to become free high-energy electrons, the free high-energy electrons collide with atoms and molecules in gas to generate excitation and ionization phenomena, the generated excited molecules, atoms, ions and free radicals are extremely unstable and have high chemical reactivity, a thin active chemical layer is formed on the surface of an inorganic deposition layer, the surface of the inorganic deposition layer is roughened, and the inorganic oxide and an adhesive can be well infiltrated; according to the invention, a slit extrusion mode is adopted in the process, the adhesive layer is coated on the inorganic deposition layer, and the method enables the thickness of the adhesive layer to be uniform and the size stability to be good; in the process, the fluorine-containing material film layer and the adhesive layer are compounded by the compound roller with temperature and pressure control, so that the activity of the adhesive layer can reach the best.
Detailed Description
The technical solution of the present invention is further explained below:
the fluorine-containing thin-film solar cell front film comprises a fluorine-containing material film layer, an adhesive layer, an inorganic deposition layer and an insulating layer, wherein the fluorine-containing material film layer, the adhesive layer, the inorganic deposition layer and the insulating layer are sequentially arranged from top to bottom, the fluorine-containing material film layer comprises at least one of PVDF, PFA, ETFE and EFEP, the inorganic deposition layer comprises at least one of silicon dioxide, aluminum oxide and titanium dioxide, and the insulating layer comprises at least one of PET and PBT. The adhesive layer comprises at least one of polyester adhesive and polyurethane adhesive, and the water vapor permeability of the front film of the battery is 10-2～10-6g/m2D, the optical transmittance of the battery front film is more than or equal to 90 percent, and the ultraviolet aging performance of the battery front film is more than or equal to 30 kWh.m-2The breakdown voltage of the battery front film is 20-40KV, the maximum withstand voltage of the battery front film is not less than 1000V, and the volume resistivity of the battery front film is not less than 1.0 x 10-13Omega · m, the surface hardness of the battery front film is 2H-4H, the surface of the battery front film is a matte surface or a smooth surface, the tensile strength of the battery front film is more than or equal to 80MPa, the breaking elongation of the battery front film is more than or equal to 80 percent, the elastic modulus of the battery front film is 2000-5000MPa, and the interlayer peeling strength of the battery front film is more than or equal to 4N/15 mm; the peel strength of the front film of the battery and EVA is more than or equal to 40N-15mm, and the constant moist heat of the battery front film is more than or equal to 2000 h.
The adhesive layer also comprises at least one of a curing agent, a UV stabilizer, an antioxidant, a hydrolysis-resistant stabilizer and a catalyst. The UV stabilizer comprises at least one of a cyanide light stabilizer and a basf light stabilizer.
The antioxidant comprises at least one of 2, 6-di-tert-butyl-p-cresol, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate and 2, 2' -methylene bis (4-ethyl-6-tert-butylphenol).
The hydrolysis-resistant stabilizer comprises at least one of carbodiimide, epoxy compound, long-chain dibasic acid and dihydric alcohol. The catalyst is triethanolamine.
The manufacturing process of the fluorine-containing thin film solar cell front film comprises the following steps:
step (1): carrying out on-line polarization treatment on the insulating layer;
step (2): plating at least one of silicon dioxide, aluminum oxide and titanium dioxide on the surface of the insulating layer in vacuum by adopting a Physical Vapor Deposition (PVD) or Chemical Vapor Deposition (CVD) method to obtain the insulating layer deposited with inorganic oxide, wherein the inorganic oxide is an inorganic deposition layer;
and (3): polarizing the insulating layer deposited with the inorganic oxide again, wherein the polarizing surface is the inorganic oxide, so that active excited molecules, atoms, ions and radical substances are formed on the surface of the inorganic oxide, and the surface of the inorganic deposition layer is roughened;
and (4): coating the adhesive layer on the inorganic deposition layer in a slit extrusion mode, and passing through an oven on line to realize preliminary drying of the adhesive layer and increase initial adhesion;
and (5): polarizing the fluorine-containing material film layer, and then compounding the fluorine-containing material film layer with the adhesive layer through a compound roller with temperature and pressure control to obtain an initial product;
and (6): and (3) placing the primary product in a double-temperature-control oven for curing to obtain a fluorine-containing thin-film solar cell front film finished product, wherein the curing time is 1-6 days, and the temperature of the double-temperature-control oven is 30-70 ℃.
The characteristics of the fluorine-containing thin film solar cell front film are as follows:
water resistance: the water vapor permeability reaches 10-2～10-6g/m2·d
Light transmittance: not less than 90%
Physical properties: the tensile strength is more than or equal to 80MPa, the elongation at break is more than or equal to 80 percent, and the elastic modulus is 2000-5000 MPa.
Insulating property: the breakdown voltage is 20-40 KV; the maximum voltage of the system is more than or equal to 1000V, and the volume resistivity is more than or equal to 1.0 x 10-13Ω*m。
Surface properties: the hardness is 2h-4 h; matte or glossy.
Aging performance: UV is not less than kWh.m-2(ii) a The damp-heat is more than or equal to 2000 h.
Bonding strength: the interlayer peeling strength is more than or equal to 4N/15 mm; the peel strength is more than or equal to 40N/15mm compared with EVA.
The test data of the fluorine-containing thin film solar cell front film is as follows:
the fluorine-containing thin-film solar cell front film has the advantages of high water resistance, high light transmittance, strong ultraviolet resistance, good insulativity, difficult aging, high hardness, high strength, hydrolysis resistance and damp and heat resistance; the process can promote the bonding strength of the front film of the thin-film solar cell, ensure that the front film of the thin-film solar cell can endure outdoor severe environment, and improve the use safety of the front film of the thin-film solar cell; in the process, the insulating layer deposited with the inorganic oxide is polarized again, the polarized surface is the inorganic oxide, the polarization treatment enables energy obtained from an electric field to become free high-energy electrons, the free high-energy electrons collide with atoms and molecules in gas to generate excitation and ionization phenomena, the generated excited molecules, atoms, ions and free radicals are extremely unstable and have high chemical reactivity, a thin active chemical layer is formed on the surface of an inorganic deposition layer, the surface of the inorganic deposition layer is roughened, and the inorganic oxide and an adhesive can be well infiltrated; according to the invention, a slit extrusion mode is adopted in the process, the adhesive layer is coated on the inorganic deposition layer, and the method enables the thickness of the adhesive layer to be uniform and the size stability to be good; in the process, the fluorine-containing material film layer and the adhesive layer are compounded by the compound roller with temperature and pressure control, so that the activity of the adhesive layer can reach the best.
It should be noted that the above list is only one specific embodiment of the present invention. It is clear that the invention is not limited to the embodiments described above, but that many variations are possible, all of which can be derived or suggested directly from the disclosure of the invention by a person skilled in the art, and are considered to be within the scope of the invention.
Claims (8)
1. The fluorine-containing thin-film solar cell front film is characterized by comprising a fluorine-containing material film layer, an adhesive layer, an inorganic deposition layer and an insulating layer, wherein the fluorine-containing material film layer, the adhesive layer, the inorganic deposition layer and the insulating layer are sequentially arranged from top to bottom, the fluorine-containing material film layer comprises at least one of PVDF, PFA, ETFE and EFEP, the inorganic deposition layer comprises at least one of silicon dioxide, aluminum oxide and titanium dioxide, the insulating layer comprises at least one of PET and PBT, and the water vapor permeability of the cell front film is 10-2～10-6g/m2D, the optical transmittance of the battery front film is more than or equal to 90 percent, and the ultraviolet aging performance of the battery front film is more than or equal to 30 kWh.m-2The breakdown voltage of the battery front film is 20-40KV, and the volume resistivity of the battery front film is more than or equal to 1.0 x 10-13Omega · m, the surface hardness of the battery front film is 2H-4H, the surface of the battery front film is a matte surface or a smooth surface, the tensile strength of the battery front film is more than or equal to 80MPa, the breaking elongation of the battery front film is more than or equal to 80 percent, the elastic modulus of the battery front film is 2000-5000MPa, and the interlayer peeling strength of the battery front film is more than or equal to 4N/15 mm; the peel strength of the battery front film and EVA is more than or equal to 40N/15mm, the constant moist heat of the battery front film is more than or equal to 2000h, and the adhesive layer comprises polyesterAt least one of an adhesive, a polyurethane adhesive, a curing agent, a UV stabilizer, an antioxidant, a hydrolysis-resistant stabilizer and a catalyst.
2. The fluorine-containing thin-film solar cell front film according to claim 1, wherein the UV stabilizer comprises at least one of a Cyanote light stabilizer and a Pasteur light stabilizer.
3. The fluorine-containing thin-film solar cell front film according to claim 1, wherein the antioxidant comprises at least one of 2, 6 di-tert-butyl-p-cresol, β n-octadecyl (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, and 2, 2' -methylene bis (4-ethyl-6-tert-butylphenol).
4. The fluorine-containing thin-film solar cell front film according to claim 1, wherein the hydrolysis-resistant stabilizer comprises at least one of carbodiimide, epoxy compound, long-chain dibasic acid and glycol.
5. The fluorine-containing thin-film solar cell front film according to claim 1, wherein the catalyst is triethanolamine.
6. The manufacturing process of the fluorine-containing thin-film solar cell front film according to claim 1, characterized by comprising the following steps:
step (1): carrying out on-line polarization treatment on the insulating layer;
step (2): plating at least one of silicon dioxide, aluminum oxide and titanium dioxide on the surface of the insulating layer in vacuum by adopting a Physical Vapor Deposition (PVD) or Chemical Vapor Deposition (CVD) method to obtain the insulating layer deposited with inorganic oxide, wherein the inorganic oxide is an inorganic deposition layer;
and (3): polarizing the insulating layer deposited with the inorganic oxide again, wherein the polarizing surface is the inorganic oxide, so that active excited molecules, atoms, ions and radical substances are formed on the surface of the inorganic oxide, and the surface of the inorganic deposition layer is roughened;
and (4): coating the adhesive layer on the inorganic deposition layer in a slit extrusion mode, and passing through an oven on line to realize preliminary drying of the adhesive layer and increase initial adhesion;
and (5): polarizing the fluorine-containing material film layer, and then compounding the fluorine-containing material film layer with the adhesive layer through a compound roller with temperature and pressure control to obtain an initial product;
and (6): and (4) placing the primary product in a double-temperature-control oven for curing to obtain a fluorine-containing thin-film solar cell front film finished product.
7. The manufacturing process of the fluorine-containing thin-film solar cell front film according to claim 6, wherein the curing time is 1-6 days, and the temperature of the double-temperature-control oven is 30-70 ℃.
8. The manufacturing process of the fluorine-containing thin-film solar cell front film according to claim 6, wherein the polarization treatment is a plasma treatment or a corona treatment.
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| CN113547818B (en) * | 2021-07-30 | 2023-07-07 | 苏州赛伍应用技术股份有限公司 | Transparent front plate and preparation method thereof |
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