CN104934494A - Composite backboard used for solar cell and solar cell module including the composite backboard - Google Patents
Composite backboard used for solar cell and solar cell module including the composite backboard Download PDFInfo
- Publication number
- CN104934494A CN104934494A CN201410108540.1A CN201410108540A CN104934494A CN 104934494 A CN104934494 A CN 104934494A CN 201410108540 A CN201410108540 A CN 201410108540A CN 104934494 A CN104934494 A CN 104934494A
- Authority
- CN
- China
- Prior art keywords
- composite back
- solar batteries
- batteries according
- back plate
- adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 160
- -1 polypropylene Polymers 0.000 claims abstract description 66
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 55
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 48
- 239000004743 Polypropylene Substances 0.000 claims abstract description 41
- 229920001155 polypropylene Polymers 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000001579 optical reflectometry Methods 0.000 claims abstract description 12
- 229920000642 polymer Polymers 0.000 claims abstract description 8
- 239000011118 polyvinyl acetate Substances 0.000 claims abstract description 4
- 229920002689 polyvinyl acetate Polymers 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 claims description 103
- 230000001070 adhesive effect Effects 0.000 claims description 103
- 229920000098 polyolefin Polymers 0.000 claims description 46
- 239000003963 antioxidant agent Substances 0.000 claims description 35
- 230000003078 antioxidant effect Effects 0.000 claims description 35
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 34
- 239000004698 Polyethylene Substances 0.000 claims description 31
- 229920000573 polyethylene Polymers 0.000 claims description 24
- 239000000654 additive Substances 0.000 claims description 23
- 230000000996 additive effect Effects 0.000 claims description 23
- 239000011256 inorganic filler Substances 0.000 claims description 21
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 19
- 239000004408 titanium dioxide Substances 0.000 claims description 16
- 238000005538 encapsulation Methods 0.000 claims description 13
- 229930195733 hydrocarbon Natural products 0.000 claims description 12
- 150000002430 hydrocarbons Chemical class 0.000 claims description 12
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 12
- 229920006332 epoxy adhesive Polymers 0.000 claims description 10
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 9
- 229910000077 silane Inorganic materials 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 8
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 claims description 8
- 239000003522 acrylic cement Substances 0.000 claims description 6
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 6
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 239000005995 Aluminium silicate Substances 0.000 claims description 4
- 240000000203 Salix gracilistyla Species 0.000 claims description 4
- 150000008360 acrylonitriles Chemical class 0.000 claims description 4
- 235000012211 aluminium silicate Nutrition 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 4
- 150000004982 aromatic amines Chemical class 0.000 claims description 4
- 150000008366 benzophenones Chemical class 0.000 claims description 4
- 239000012964 benzotriazole Substances 0.000 claims description 4
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 229940074391 gallic acid Drugs 0.000 claims description 4
- 235000004515 gallic acid Nutrition 0.000 claims description 4
- 229960001545 hydrotalcite Drugs 0.000 claims description 4
- 229910001701 hydrotalcite Inorganic materials 0.000 claims description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 4
- 150000002989 phenols Chemical class 0.000 claims description 4
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical class OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 4
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 4
- 150000003918 triazines Chemical class 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 229920006124 polyolefin elastomer Polymers 0.000 claims description 3
- 230000035699 permeability Effects 0.000 abstract description 15
- 230000004888 barrier function Effects 0.000 abstract description 3
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 abstract 7
- 239000012790 adhesive layer Substances 0.000 abstract 2
- 239000011229 interlayer Substances 0.000 abstract 2
- 239000000326 ultraviolet stabilizing agent Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 13
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 12
- 238000001035 drying Methods 0.000 description 12
- 229910052731 fluorine Inorganic materials 0.000 description 12
- 239000011737 fluorine Substances 0.000 description 12
- 239000003292 glue Substances 0.000 description 12
- 238000002156 mixing Methods 0.000 description 12
- 239000002245 particle Substances 0.000 description 12
- 238000003756 stirring Methods 0.000 description 12
- 238000001125 extrusion Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 8
- SWZOQAGVRGQLDV-UHFFFAOYSA-N 4-[2-(4-hydroxy-2,2,6,6-tetramethylpiperidin-1-yl)ethoxy]-4-oxobutanoic acid Chemical compound CC1(C)CC(O)CC(C)(C)N1CCOC(=O)CCC(O)=O SWZOQAGVRGQLDV-UHFFFAOYSA-N 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 229920006335 epoxy glue Polymers 0.000 description 6
- JLZIIHMTTRXXIN-UHFFFAOYSA-N 2-(2-hydroxy-4-methoxybenzoyl)benzoic acid Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1C(O)=O JLZIIHMTTRXXIN-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000012745 toughening agent Substances 0.000 description 5
- MEZZCSHVIGVWFI-UHFFFAOYSA-N 2,2'-Dihydroxy-4-methoxybenzophenone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1O MEZZCSHVIGVWFI-UHFFFAOYSA-N 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 description 4
- DXGLGDHPHMLXJC-UHFFFAOYSA-N oxybenzone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1 DXGLGDHPHMLXJC-UHFFFAOYSA-N 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 2
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 2
- XITRBUPOXXBIJN-UHFFFAOYSA-N bis(2,2,6,6-tetramethylpiperidin-4-yl) decanedioate Chemical compound C1C(C)(C)NC(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)NC(C)(C)C1 XITRBUPOXXBIJN-UHFFFAOYSA-N 0.000 description 2
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229920002620 polyvinyl fluoride Polymers 0.000 description 2
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- 229920001780 ECTFE Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 229920006370 Kynar Polymers 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 229920000428 triblock copolymer Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004383 yellowing Methods 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
- B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/416—Reflective
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/71—Resistive to light or to UV
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/712—Weather resistant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B32B2307/7246—Water vapor barrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/12—Photovoltaic modules
-
- 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 relates to a composite backboard used for a solar cell and a solar cell module including the composite backboard. The composite backboard used for the solar cell sequentially comprises an outer layer, a first adhesive layer, a middle layer, a second adhesive layer and an inner layer. The outer layer comprises a polypropylene composite material. The middle layer possesses a polymer with an above 55V/micrometer power-frequency electrical intensity. The inner layer comprises a polyvinyl or ethylene-vinyl acetate copolymer composite material. An interlayer stripping intensity of the inner layer and packaging EVA used for the solar cell is greater than 40N/cm. The composite backboard possesses a water vapor permeability which is lower than 2.0g/m<2>. Preferably, in a 420nm-640nm wavelength scope, at least 90% light reflectivity is possessed. The composite backboard used for the solar cell simultaneously possesses an excellent water vapor barrier property and the excellent interlayer stripping intensity.
Description
Technical field
The present invention relates to a kind of composite back plate used for solar batteries and comprise its solar module.
Background technology
Along with coal, oil, a large amount of consumption of these non-renewable resources such as natural gas, the whole world has to sight to invest these fields of regenerative resource, as solar energy, wind energy, tidal energy etc.And the mankind have three kinds: one at present for Solar use mode, photo-thermal changes (solar water heater); Two, photoelectric conversion (photovoltaic cell); Three, photochemical transformations (still at laboratory stage).
For the production of solar cell, usually need various assembly material as cell piece, packaging adhesive film, aluminium frame, composite membrane (being commonly referred to composite back plate) etc. is combined and composite back plate and the hot pressing of encapsulation EVA film is fitted to realize electrically, the requirement of water vapour obstruct and other weatherabilities.Composite back plate conventional on the market presses cladding material, substantially can be divided into fluorine material and not fluorine material, the example of the composite back plate of fluorine material comprises the fluorine-containing composite back plate of PVF of Du Pont Tedlar, the fluorine-containing composite back plate of PVDF of A Kema Kynar, the fluorine-containing composite back plate material of Honeywell ECTFE, the fluorine-containing composite back plate material of Saint-Gobain ETFE, and the fluorine-containing composite back plate material of 3M Dyneon THV etc.And not fluorine-containing material, PPE as bright in Kang Wei, ISOVOLTAIC (APA, 3A), multi-layer co-extruded polyolefin composite back plate, due to more friendly to environment, and with low cost, more and more receive the welcome of assembly producer.But, still there is such as following problem in existing composite back plate (fluorine-containing and not fluorine-containing): uvioresistant performance difference (particularly not fluorine-containing composite back plate) is xanthochromia easily, water vapour permeability is high, reflective function weak (<85%) and cause power stage low, the easy constricted fold of coextrusion polyolefin composite back plate, not easy to operate.Also have some backboards to have outer efflorescence easy to crack after hydrothermal aging, adhesive needs long-time solidification, and the production cycle is long, high in cost of production shortcoming.
Summary of the invention
The object of this invention is to provide and a kind of there is excellent water vapor barrier and the compound backboard of interlaminar strength simultaneously, and comprise the solar module according to composite back plate of the present invention.
According to the present invention, provide following technical scheme:
1. a composite back plate used for solar batteries, it comprises skin, the first adhesive phase, intermediate layer, the second adhesive phase and internal layer in the following order, wherein said skin comprises behavior of polypropylene composites, described intermediate layer has the polymer that power frequency electrical strength is greater than 55V/ μm, described internal layer comprises polyvinyl or ethylene-vinyl acetate copolymer based composites, and being greater than 40N/cm with the interlaminar strength of the encapsulation EVA for solar cell, wherein said composite back plate has lower than 2.0g/m
2the water vapor permeation rate of d.
2. the composite back plate used for solar batteries according to item 1, wherein said skin is in the scope of 3: 1 to 1: 12 with the ratio of the thickness in described intermediate layer, described intermediate layer is in the scope of 12: 1 to 1: 5 with the ratio of the thickness of described internal layer, and the gross thickness of described composite back plate is greater than 250 μm.
3. the composite back plate used for solar batteries according to item 2, wherein said skin is in the scope of 2: 1 to 1: 8 with the ratio of the thickness in described intermediate layer, and described intermediate layer is in the scope of 8: 1 to 1: 3 with the ratio of the thickness of described internal layer.
4. the composite back plate used for solar batteries according to item 2, wherein said skin is in the scope of 1: 2 to 1: 6 with the ratio of the thickness in described intermediate layer, and described intermediate layer is in the scope of 4: 1 to 1: 2 with the ratio of the thickness of described internal layer.
5. the composite back plate used for solar batteries according to item 1, wherein said behavior of polypropylene composites comprises polypropylene, inorganic filler, uvioresistant additive, flexibilizer and antioxidant.
6. the composite back plate used for solar batteries according to item 5, wherein said behavior of polypropylene composites also comprises other olefin polymers except polypropylene.
7. the composite back plate used for solar batteries according to item 6, other olefin polymers wherein said comprise in polyethylene and ethylene-vinyl acetate copolymer one or more.
8. the composite back plate used for solar batteries according to item 1, wherein said polyethylene based composition comprises polyethylene, inorganic filler, uvioresistant additive and antioxidant.
9. the composite back plate used for solar batteries according to item 1, wherein said ethylene-vinyl acetate copolymer based composites comprises ethylene-vinyl acetate copolymer, inorganic filler, uvioresistant additive and antioxidant.
10. the composite back plate used for solar batteries according to item 8, wherein said polyethylene based composition also comprises other olefin polymers in addition to the polyethylene.
11. composite back plates used for solar batteries according to item 9, wherein said ethylene-vinyl acetate copolymer based composites also comprises other olefin polymers except ethylene-vinyl acetate copolymer.
12. composite back plates used for solar batteries according to item 10 or 11, other olefin polymers wherein said comprise propylene copolymer.
13. composite back plates used for solar batteries according to item 1, wherein said have that polymer that power frequency electrical strength is greater than 55V/ μm comprises in PETG, Merlon, PEN, polybutylene terephthalate (PBT) and polymethyl methacrylate one or more.
14. composite back plates used for solar batteries according to item 1, the thickness in wherein said intermediate layer is 25 microns to 300 microns.
15. composite back plates used for solar batteries according to item 1, wherein said outer field thickness is 25 microns to 250 microns.
16. composite back plates used for solar batteries according to item 1, the thickness of wherein said internal layer is 25 microns to 150 microns.
17. composite back plates used for solar batteries according to item 5, wherein said flexibilizer comprise in the polypropylene of maleic anhydride graft, the polyethylene of maleic anhydride graft, ethylene-vinyl acetate and polyolefin elastomer one or more.
18. composite back plates used for solar batteries according to item 8 or 9, wherein said inorganic filler comprise in calcium carbonate, titanium dioxide, imvite, kaolin, barium sulfate and hydrotalcite one or more.
19. composite back plates used for solar batteries according to item 8 or 9, wherein said uvioresistant additive package is containing one or more in bigcatkin willow esters of gallic acid, benzophenone class, benzotriazole, group-substituted acrylonitrile, triazines and hindered amines.
20. composite back plates used for solar batteries according to item 8 or 9, wherein said antioxidant is one or more in aromatic amine, Hinered phenols and phosphorous acid esters.
21. composite back plates used for solar batteries according to item 1, wherein said first adhesive phase and/or the second adhesive phase have the thickness of 1 ~ 10 micron.
22. composite back plates used for solar batteries according to item 1, adhesive contained in wherein said first adhesive phase comprise in polyurethane binding, epoxy adhesive, acrylic adhesives and modified polyolefin hydro carbons adhesive one or more.
23. composite back plates used for solar batteries according to item 1, adhesive contained in wherein said second adhesive phase comprise in polyurethane binding, epoxy adhesive, acrylic adhesives, modified polyolefin hydro carbons adhesive, titanate ester adhesive and silane-based adhesion agent one or more.
24. composite back plates used for solar batteries according to item 1, wherein said skin have more than 160 DEG C fusing point and lower than 10g/m
2the water vapor permeation rate of d.
25. composite back plates used for solar batteries according to item 1, wherein said composite back plate used for solar batteries has the light reflectivity of at least 90% in the wave-length coverage of 420nm-640nm.
26. 1 kinds of solar modules, it comprises the composite back plate used for solar batteries according to any one of item 1 to 25.
Beneficial effect
According to composite back plate of the present invention, there is excellent water vapor barrier and interlaminar strength simultaneously.In addition, excellent light reflectivity can also be had according to composite back plate of the present invention and solar module has high power output.In addition, anti-ultraviolet function can also be had according to composite back plate of the present invention, and without the need to extra curing time, thus greatly can shorten the production cycle of composite back plate, with low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation according to composite back plate of the present invention.
Fig. 2 is the structural representation of the solar module comprised according to composite back plate of the present invention.
Fig. 3 shows composite back plate of the present invention (embodiment 3) light reflectivity in 200nm ~ 1100nm wave-length coverage.
Fig. 4 shows the YI of skin under Ultraviolet radiation of composite back plate of the present invention (embodiment 3), and b value changes.
Fig. 5 shows the YI of internal layer under Ultraviolet radiation of composite back plate of the present invention (embodiment 3), and b value changes.
Fig. 6 shows the water vapour permeability of composite back plate of the present invention (embodiment 3).
Embodiment
Composite back plate used for solar batteries according to the present invention comprises skin, the first adhesive phase, intermediate layer, the second adhesive phase and internal layer in the following order, wherein said skin comprises behavior of polypropylene composites, described intermediate layer has the polymer that power frequency electrical strength is greater than 55V/ μm, described internal layer comprises polyvinyl or ethylene-vinyl acetate copolymer based composites, and being greater than 40N/cm with the interlaminar strength of the encapsulation EVA for solar cell, wherein said composite back plate has lower than 2.0g/m
2it water vapor permeation rate.Preferably, this composite back plate has the light reflectivity of at least 90% in the wave-length coverage of 420nm-640nm.
Fig. 1 is the structural representation according to composite back plate of the present invention.As shown in Figure 1, composite back plate used for solar batteries according to the present invention comprises outer 1a, intermediate layer 2a and internal layer 3a and the first adhesive phase 4a of being arranged between outer 1a and intermediate layer 2a and the second adhesive phase 5a be arranged between intermediate layer 2a and internal layer 3a.
Every one deck of composite back plate used for solar batteries of the present invention is described below in detail.
Outer
According to the present invention, skin is the layer comprising behavior of polypropylene composites.Preferably, skin have more than 160 DEG C fusing point and lower than 10g/m
2it water vapor permeation rate.Described behavior of polypropylene composites can comprise polypropylene, inorganic filler, uvioresistant additive, flexibilizer and antioxidant.
Described inorganic filler comprises calcium carbonate, titanium dioxide, preferred rutile titanium dioxide, such as Du Pont R105, imvite, kaolin, one or more in barium sulfate and hydrotalcite.
Described uvioresistant additive can be organic uv absorbers or stabilizer.Organic uv absorbers or stabilizer package are containing one or more in bigcatkin willow esters of gallic acid, benzophenone class, benzotriazole, group-substituted acrylonitrile, triazines and hindered amines.The instantiation of uvioresistant additive comprises UV-9 (ESCALOL 567), UV-531 (2-hydroxyl-4-n-octyloxy-benzophenone), UV-326 [(2 '-hydroxyl-3 '-tert-butyl group-5 '-aminomethyl phenyl)-5-chlorinated benzotriazole], UV-P [2-(2 '-hydroxyl-5 '-aminomethyl phenyl) BTA], UV-24 (2, 2 '-dihydroxy-methoxy benzophenone), triazine-5 [2, 4, 6-tri-(2 '-hydroxyl-4 '-n-octyloxy phenyl)-1, 3, 5-triazine], TINUVIN622, TINUVIN770, TINUVIN783, TINUVINP, TINUVIN788 etc.
Flexibilizer comprise in the polypropylene of maleic anhydride graft, the polyethylene of maleic anhydride graft, ethylene-vinyl acetate and polyolefin elastomer one or more.
Antioxidant is one or more in aromatic amine, Hinered phenols and phosphorous acid esters.The instantiation of antioxidant comprises BASF antioxidant 1010 and 168, and B215.
Described behavior of polypropylene composites also comprises other olefin polymers except polypropylene.Other olefin polymers described comprise in polyethylene and ethylene-vinyl acetate copolymer one or more.
When skin comprise polypropylene, inorganic filler, uvioresistant additive, flexibilizer and antioxidant time, based on outer field total weight, polyacrylic weight ratio is preferably in the scope of 65% ~ 94%, the weight ratio of inorganic filler is preferably in the scope of 5% ~ 25%, the weight ratio of uvioresistant additive is preferably in the scope of 0.1% ~ 1.5%, the weight ratio of flexibilizer is preferably in the scope of 0.5 ~ 5%, and the weight ratio of antioxidant is preferably in the scope of 0.1% ~ 1.0%.
When skin comprises polypropylene, other olefin polymers, inorganic filler, uvioresistant additive, when flexibilizer and antioxidant, based on outer field total weight, polyacrylic weight ratio is preferably in the scope of 55% ~ 84%, other olefin polymers are preferably in the scope of 2% ~ 15%, the weight ratio of inorganic filler is preferably in the scope of 5% ~ 25%, the weight ratio of uvioresistant additive is preferably in the scope of 0.1% ~ 1.5%, the weight ratio of flexibilizer is preferably in the scope of 0.5 ~ 5%, and the weight ratio of antioxidant is preferably in the scope of 0.1% ~ 1.0%.
Outer field thickness is 25 microns to 250 microns.
First adhesive phase
Adhesive contained in the first adhesive phase can be common adhesive, as long as it can realize bonding strong between skin and intermediate layer.Adhesive contained in the first adhesive phase also can be the adhesive specially of exploitation.
Adhesive contained in first adhesive phase can comprise in polyurethane binding, epoxy adhesive, acrylic adhesives and modified polyolefin hydro carbons adhesive one or more, preferred epoxy adhesive and modified polyolefin hydro carbons adhesive, particularly preferably modified polyolefin hydro carbons adhesive.
Particularly, when adopting epoxy adhesive or modified polyolefin hydro carbons adhesive or their combination as the first adhesive phase, relative to other adhesives, spread few and without the need to solidification, can significantly shorten the production cycle of composite back plate and greatly strengthen interlaminar strength.
The thickness of the first adhesive phase can be 1 ~ 10 micron.
Intermediate layer
According to the present invention, intermediate layer has the polymer that power frequency electrical strength is greater than 55V/ μm.Power frequency electrical strength can be measured by means known in the art.
The polymer meeting the intermediate layer of above-mentioned requirements can comprise in PETG, Merlon, PEN, polybutylene terephthalate (PBT) and polymethyl methacrylate one or more.
The thickness in described intermediate layer is 25 microns to 300 microns.
Second adhesive phase
Adhesive contained in the second adhesive phase can be common adhesive, as long as it can realize bonding strong between internal layer and intermediate layer.Adhesive contained in the second adhesive phase also can be the adhesive specially of exploitation.
Adhesive contained in second adhesive phase can comprise in polyurethane binding, epoxy adhesive, acrylic adhesives, modified polyolefin hydro carbons adhesive, titanate ester and silane-based adhesion agent one or more, preferred epoxy adhesive and modified polyolefin hydro carbons adhesive, particularly preferably modified polyolefin hydro carbons adhesive.Second adhesive and the first adhesive can be identical or different.
Particularly, when adopting epoxy adhesive or modified polyolefin hydro carbons adhesive or their combination as the second adhesive phase, relative to other adhesives, spread few and without the need to solidification, can significantly shorten the production cycle of composite back plate and greatly strengthen interlaminar strength.
The thickness of the second adhesive phase can be 1 ~ 10 micron.
Internal layer
According to the present invention, internal layer comprises polyethylene based composition or ethylene-vinyl acetate copolymer based composites, and is greater than 40N/cm with the interlaminar strength of the encapsulation EVA for solar cell.Preferably, internal layer has the light reflectivity of at least 90% in the wave-length coverage of 420nm-640nm.
Described polyethylene based composition can comprise polyethylene, inorganic filler, uvioresistant additive and antioxidant.Described polyethylene based composition can also comprise other olefin polymers in addition to the polyethylene.Other olefin polymers described comprise propylene copolymer.
Described ethylene-vinyl acetate copolymer based composites can comprise ethylene-vinyl acetate copolymer, inorganic filler, uvioresistant additive and antioxidant.Described ethylene-vinyl acetate copolymer based composites also comprises other olefin polymers except ethylene-vinyl acetate copolymer.Other olefin polymers described comprise propylene copolymer.
Described inorganic filler comprises calcium carbonate, titanium dioxide, preferred rutile titanium dioxide, such as Du Pont R105, imvite, kaolin, one or more in barium sulfate and hydrotalcite.
Described uvioresistant additive can be organic uv absorbers or stabilizer.Organic uv absorbers or stabilizer package are containing one or more in bigcatkin willow esters of gallic acid, benzophenone class, benzotriazole, group-substituted acrylonitrile, triazines and hindered amines.The instantiation of uvioresistant additive comprises UV-9 (ESCALOL 567), UV-531 (2-hydroxyl-4-n-octyloxy-benzophenone), UV-326 [(2 '-hydroxyl-3 '-tert-butyl group-5 '-aminomethyl phenyl)-5-chlorinated benzotriazole], UV-P [2-(2 '-hydroxyl-5 '-aminomethyl phenyl) BTA], UV-24 (2, 2 '-dihydroxy-methoxy benzophenone), triazine-5 [2, 4, 6-tri-(2 '-hydroxyl-4 '-n-octyloxy phenyl)-1, 3, 5-triazine], TINUVIN622, TINUVIN770, TINUVIN783, TINUVINP, TINUVIN788 etc.
Antioxidant comprise in aromatic amine, Hinered phenols and phosphorous acid esters one or more.The instantiation of antioxidant comprises BASF antioxidant 1010 and 168, and B215.
When internal layer comprise polyethylene or ethylene-vinyl acetate copolymer, inorganic filler, uvioresistant additive and antioxidant time, based on the total weight of internal layer, the weight ratio of polyethylene or ethylene-vinyl acetate copolymer is preferably in the scope of 75% ~ 94%, the weight ratio of inorganic filler is preferably in the scope of 5 ~ 25%, the weight ratio of uvioresistant additive preferably in the scope of 0.1% ~ 1.5%, and the weight ratio of antioxidant preferably 0.1% ~ 1.0% scope in.
When internal layer comprises polyethylene or ethylene-vinyl acetate copolymer, other olefin polymers, inorganic filler, uvioresistant additive, during with antioxidant, based on the total weight of internal layer, the weight ratio of polyethylene or ethylene-vinyl acetate copolymer is preferably in the scope being greater than 0% to 75%, other olefin polymers are preferably in the scope of 1 ~ 75%, the weight ratio of inorganic filler is preferably in the scope of 5 ~ 25%, the weight ratio of uvioresistant additive is preferably in the scope of 0.1% ~ 1.5%, and the weight ratio of antioxidant is preferably in the scope of 0.1% ~ 1.0%.
The thickness of internal layer is 25 microns to 150 microns.
The present inventor also finds, in the five-layer structure of this composite back plate, when skin and the ratio of the thickness in intermediate layer are in the scope of 3: 1 to 1: 12, is preferably in the scope of 2: 1 to 1: 8, is more preferably in the scope of 1: 2 to 1: 6; Intermediate layer is in the scope of 12: 1 to 1: 5 with the ratio of the thickness of internal layer, is preferably in the scope of 8: 1 to 1: 3, is more preferably in the scope of 4: 1 to 1: 2; And the gross thickness of this composite back plate more than 250 microns time, this composite back plate is except having lower than 2.0g/m
2it water vapor permeation rate, and outside the light reflectivity in the wave-length coverage of 420nm-640nm with at least 90%, also there is the partial discharge being greater than 1,000V.Meanwhile, compared with similar backboard product, such composite back plate is easier to process (laminating technology condition as corresponding in it, comprising temperature, duration etc., will be more loose), and its production cost is lower.
Solar module
Fig. 2 is the structural representation of the solar module comprised according to composite back plate of the present invention.As shown in Figure 2, solar module comprises glass plate 2, encapsulating material EVA (ethylene-vinyl acetate copolymer) 3, cell piece 4, composite back plate of the present invention 5, positive pole 6, negative pole 7 and electrode isolation bar EPE8.When composite back plate 5 of the present invention is arranged in solar module, inner layer surface is to encapsulating material EVA (ethylene-vinyl acetate copolymer) 3, and outer layer surface is to air side.When solar module works, sunlight 1 enters from glass 2 side of solar module.
Can manufacture according to conventional methods according to composite back plate of the present invention and solar module.
Embodiment
Particularly the present invention will be described by using embodiment hereinafter.But, the invention is not restricted to these embodiments or limited by these embodiments.Unless otherwise noted, part in an embodiment refers to weight portion.
Embodiment 1
Outer field 90 parts, polypropylene PP particle, flexibilizer (polypropylene (percent grafting is 5%) of maleic anhydride graft) 2 parts will be used for, ultra-violet stabilizer (TINUVIN622) 0.5 part, titanium dioxide (R105) 7 parts, antioxidant (B215) 0.5 part is at normal temperature (10 ~ 30 DEG C), think the rotating speed of 500 revs/min, added in mixer by side spout in batches and carry out mixing and fully stir half an hour, then at 220 DEG C of temperature, using the thickness film extrusion of 80 μm as skin.
91 parts, polythene PE particle, ultra-violet stabilizer (CYASORB THT7001) 0.5 part, titanium dioxide 8 parts, the antioxidant (B215) 0.5 part of internal layer will be used for, at normal temperature (10 ~ 30 DEG C), be the rotating speed of 500 revs/min, added in mixer by side spout in batches and carry out mixing and fully stir half an hour, then under 230 DEG C of temperature conditions, using the thickness film extrusion of 50 μm as internal layer.
At 188 μm of white PET through corona in air, (producer is Foshan Du Pont, the trade mark is BP series) side on the coating adhesive 1 (mixture of improved polyalkene glue and epoxy glue) of about 3 μm, through 100 degree of oven for drying to obtain the first adhesive phase.Above-mentioned skin is compounded on the first adhesive phase.Then, the opposite side of PET applies the adhesive 2 (mixture of improved polyalkene glue and silane coupler (KH550)) of about 3 μm, through 100 degree of oven for drying to obtain the second adhesive phase.Then the above-mentioned internal layer of compound on the second adhesive phase, can obtain composite back plate 1 of the present invention.
Embodiment 2
The polypropylene (percent grafting is 5%) 2 parts of outer field 90 parts, polypropylene PP particle, toughening agent maleic anhydride grafting will be used for, ultra-violet stabilizer (UV3346) 0.5 part, titanium dioxide (R105) 7 parts, antioxidant (B215) 0.5 part is at normal temperature (10 ~ 30 DEG C), think the rotating speed of 500 revs/min, added in mixer by side spout in batches and carry out mixing and fully stir half an hour, then at 220 DEG C of temperature, using the thickness film extrusion of 150 μm as skin.
91 parts, polythene PE particle, ultra-violet stabilizer (UV3853) 0.5 part, titanium dioxide 8 parts, the antioxidant (B215) 0.5 part of internal layer will be used for, at normal temperature (10 ~ 30 DEG C), be the rotating speed of 500 revs/min, added in mixer by side spout in batches and carry out mixing and fully stir half an hour, then under 230 DEG C of temperature conditions, using the thickness film extrusion of 100 μm as internal layer.
At 250 μm of white PET through corona in air, (producer is eastern material science and technology, the trade mark is DS series) side on the coating adhesive 1 (mixture of improved polyalkene glue and epoxy glue) of about 3 μm, through 100 degree of oven for drying to obtain the first adhesive phase.Above-mentioned skin is compounded on the first adhesive phase.Then, the opposite side of PET applies the adhesive 2 (mixture of improved polyalkene glue and silane coupler (KH550)) of about 3 μm, through 100 degree of oven for drying to obtain the second adhesive phase.Then the above-mentioned internal layer of compound on the second adhesive phase, can obtain composite back plate 2 of the present invention.
Embodiment 3
Outer field 80 parts, polypropylene PP particle, polyethylene 10 parts will be used for, the polypropylene (percent grafting is 5%) 2 parts of toughening agent maleic anhydride grafting, ultra-violet stabilizer (TINUVIN622) 0.5 part, titanium dioxide (R105) 7 parts, antioxidant (B215) 0.5 part is at normal temperature (10 ~ 30 DEG C), think the rotating speed of 500 revs/min, added in mixer by side spout in batches and carry out mixing and fully stir half an hour, then at 220 DEG C of temperature, using the thickness film extrusion of 80 μm as skin.
91 parts, polythene PE particle, ultra-violet stabilizer (CYASORB THT7001) 0.5 part, titanium dioxide 8 parts, the antioxidant (B215) 0.5 part of internal layer will be used for, at normal temperature (10 ~ 30 DEG C), be the rotating speed of 500 revs/min, added in mixer by side spout in batches and carry out mixing and fully stir half an hour, then under 230 DEG C of temperature conditions, using the thickness film extrusion of 50 μm as internal layer.
At 188 μm of white PET through corona in air, (producer is Foshan Du Pont, the trade mark is BP series) side on the coating adhesive 1 (mixture of improved polyalkene glue and epoxy glue) of about 3 μm, through 100 degree of oven for drying to obtain the first adhesive phase.Above-mentioned skin is compounded on the first adhesive phase.Then, the opposite side of PET applies the adhesive 2 (mixture of improved polyalkene glue and silane coupler (KH550)) of about 3 μm, through 100 degree of oven for drying to obtain the second adhesive phase.Then the above-mentioned internal layer of compound on the second adhesive phase, can obtain composite back plate 3 of the present invention.
Embodiment 4
Outer field 80 parts, polypropylene PP particle, polyethylene 10 parts will be used for, the polypropylene (percent grafting is 5%) 2 parts of toughening agent maleic anhydride grafting, ultra-violet stabilizer (TINUVIN622) 0.5 part, titanium dioxide (R105) 7 parts, antioxidant (B215) 0.5 part is at normal temperature (10 ~ 30 DEG C), think the rotating speed of 500 revs/min, added in mixer by side spout in batches and carry out mixing and fully stir half an hour, then at 220 DEG C of temperature, using the thickness film extrusion of 80 μm as skin.
By 91 parts, ethylene vinyl acetate EVA particle, ultra-violet stabilizer (CYASORB THT7001) 0.5 part, titanium dioxide 8 parts, antioxidant (B215) 0.5 part, at normal temperature (10 ~ 30 DEG C), be the rotating speed of 500 revs/min, added in mixer by side spout in batches and carry out mixing and fully stir half an hour, then, under 220 DEG C of temperature conditions, extrude as internal layer using the thickness of 50 μm.
At 188 μm of white PET through corona in air, (producer is Foshan Du Pont, the trade mark is BP series) side on the coating adhesive 1 (mixture of improved polyalkene glue and epoxy glue) of about 3 μm, through 100 degree of oven for drying to obtain the first adhesive phase.Above-mentioned skin is compounded on the first adhesive phase.Then, the opposite side of PET applies the adhesive 2 (mixture of improved polyalkene glue and silane coupler (KH550)) of about 3 μm, through 100 degree of oven for drying to obtain the second adhesive phase.Then the above-mentioned internal layer of compound on the second adhesive phase, can obtain composite back plate 4 of the present invention.
Embodiment 5
Outer field 80 parts, polypropylene PP particle, polyethylene 10 parts will be used for, the polypropylene (percent grafting is 5%) 2 parts of toughening agent maleic anhydride grafting, ultra-violet stabilizer (TINUVIN622) 0.5 part, titanium dioxide (R105) 7 parts, antioxidant (B215) 0.5 part is at normal temperature (10 ~ 30 DEG C), think the rotating speed of 500 revs/min, added in mixer by side spout in batches and carry out mixing and fully stir half an hour, then at 220 DEG C of temperature, using the thickness film extrusion of 80 μm as skin.
The PP triblock copolymer (copolymer of propylene, ethene and octene) 45.5 parts of internal layer will be used for, 45.5 parts, EVA particle, ultra-violet stabilizer (CYASORB THT7001) 0.5 part, titanium dioxide 8 parts, antioxidant (B215) 0.5 part, at normal temperature (10 ~ 30 DEG C), be the rotating speed of 500 revs/min, added in mixer by side spout in batches and carry out mixing and fully stir half an hour, then under 220 DEG C of temperature conditions, using the thickness film extrusion of 50 μm as internal layer.
At 188 μm of white PET through corona in air, (producer is Foshan Du Pont, the trade mark is BP series) side on the coating adhesive 1 (mixture of improved polyalkene glue and epoxy glue) of about 3 μm, through 100 degree of oven for drying to obtain the first adhesive phase.Above-mentioned skin is compounded on the first adhesive phase.Then, the opposite side of PET applies the adhesive 2 (mixture of improved polyalkene glue and silane coupler (KH550)) of about 3 μm, through 100 degree of oven for drying to obtain the second adhesive phase.Then the above-mentioned internal layer of compound on the second adhesive phase, can obtain composite back plate 5 of the present invention.
Embodiment 6
Outer field 80 parts, polypropylene PP particle, polyethylene 10 parts will be used for, the polypropylene (percent grafting is 5%) 2 parts of toughening agent maleic anhydride grafting, ultra-violet stabilizer (TINUVIN622) 0.5 part, titanium dioxide (R105) 7 parts, antioxidant (B215) 0.5 part is at normal temperature (10 ~ 30 DEG C), think the rotating speed of 500 revs/min, added in mixer by side spout in batches and carry out mixing and fully stir half an hour, then at 220 DEG C of temperature, using the thickness film extrusion of 80 μm as skin.
91 parts, polythene PE particle, ultra-violet stabilizer (CYASORB THT7001) 0.5 part, titanium dioxide 8 parts, the antioxidant (B215) 0.5 part of internal layer will be used for, at normal temperature (10 ~ 30 DEG C), be the rotating speed of 500 revs/min, added in mixer by side spout in batches and carry out mixing and fully stir half an hour, then under 230 DEG C of temperature conditions, using the thickness film extrusion of 50 μm as internal layer.
At 188 μm of PC through corona in air, (producer is Bayer science and technology, the trade mark is MakrofolTP244 series) side on the coating adhesive 1 (mixture of improved polyalkene glue and epoxy glue) of about 3 μm, through 100 degree of oven for drying to obtain the first adhesive phase.Above-mentioned skin is compounded on the first adhesive phase.Then, the opposite side of PC applies the adhesive 2 (mixture of improved polyalkene glue and silane coupler (KH550)) of about 3 μm, through 100 degree of oven for drying to obtain the second adhesive phase.Then the above-mentioned internal layer of compound on the second adhesive phase, can obtain composite back plate 6 of the present invention.
Embodiment 7-12
By glass plate, encapsulation EVA, cell piece, encapsulation EVA layer and the composite back plate of the present invention prepared by embodiment 1-6 are with said sequence at 145 degree, and the condition laminated of 15 minutes obtains solar module.
Comparative example 1
By glass plate, encapsulation EVA, cell piece, the backboard COVEME dyMat PYE SPV of encapsulation EVA layer and prior art is with said sequence at 145 degree, and the condition laminated of 15 minutes obtains solar module.
Below the performance of the solar module of the present invention of preparation in the composite back plate of the present invention prepared in embodiment 1-6 and embodiment 7-12 and comparative example 1 is tested as follows and evaluated.Interlaminar strength
Interlaminar strength between composite back plate ectomesoderm and intermediate layer measures according to ASTM D1876.Internal layer in composite back plate and for solar cell encapsulation EVA between interlaminar strength measure according to ASTM D903.
Light reflectivity
The light reflectivity of composite back plate uses Lamda950 instrument to measure in the wave-length coverage of 250nm-1100nm.
Anti-ultraviolet property
The anti-ultraviolet property of composite back plate is according to ASTM G154cycle1,120kWh/m
2test under ultraviolet irradiation intensity, yellowness index (Yellow Index) characterizes according to ASTM D1925.
Water vapour permeability
The water vapour permeability of composite back plate measures under the condition of 37.8 DEG C/100%RH according to ASTM F1249.
Power output
The power output Spire simulator of solar module measures according to IEC61215.
Table 1 shows the interlaminar strength between skin in the composite back plate of embodiment 3 and intermediate layer and between internal layer and intermediate layer.
Table 1
As shown in table 1, interlaminar strength between composite back plate ectomesoderm and intermediate layer is up to 10.6N/cm, even and if at hydrothermal aging after 2000 hours, still remain the peel strength of the brilliance of 7.1N/cm, and the interlaminar strength between internal layer and intermediate layer is larger, and internal layer cannot be separated with intermediate layer.
Table 2 show internal layer in the composite back plate of embodiment 3 and for solar cell encapsulation EVA between interlaminar strength.
Table 2
As shown in table 2, the internal layer in composite back plate and for solar cell encapsulation EVA between interlaminar strength up to 65N/cm, even and if at hydrothermal aging after 2000 hours, also good bonding can be kept.
Fig. 3 shows the light reflectivity of composite back plate of the present invention in 200nm ~ 1100nm wave-length coverage.As shown in Figure 3, composite back plate of the present invention has the light reflectivity of at least 90% at visible region (420nm-640nm), and this makes it can improve assembly power output further.
Fig. 4 shows the YI of skin under Ultraviolet radiation (yellowness index), the change of b (yellowing) value of composite back plate of the present invention, and Fig. 5 shows YI, b value change of internal layer under Ultraviolet radiation of composite back plate of the present invention.As shown in Figures 4 and 5, YI<5, and the appearance color of this skin visual and internal layer is unchanged, surface is without cracking, and this shows that composite back plate of the present invention has excellent anti-ultraviolet property.
Fig. 6 shows the water vapour permeability of composite back plate of the present invention.As shown in Figure 6, composite back plate of the present invention has 1.7g/m
2it low water vapour permeability, wherein outer field water vapour permeability is 9.1g/m
2my god.
In addition, embodiment 3 is compared discovery with embodiment 1, the outer field toughness (300%) of the too late embodiment 3 of outer field toughness (200%) of embodiment 1, but other performances are similar, such as, the composite back plate of embodiment 1 also has 1.7g/m
2it low water vapour permeability.
Embodiment 3 is compared discovery with embodiment 2, and the partial discharge voltage of embodiment 3 reaches 1087V, and the partial discharge voltage of embodiment 2 reaches 1530V and water vapour permeability is low to moderate 1.05g/m
2my god, but the cost of embodiment 2 is significantly higher than the cost of embodiment 3, and other performances are similar.
Embodiment 3 is compared discovery with embodiment 4, and in composite back plate obtained in example 4, internal layer reaches 80N/cm with encapsulation EVA peel strength, and water vapour permeability is higher than embodiment 3, reaches 1.9g/m
2my god, and internal layer is 120kWh/m at ultraviolet irradiation intensity
2time, yellowness index >5, other performances are similar.
Embodiment 3 is compared discovery with embodiment 5, and the water vapour permeability of composite back plate obtained in embodiment 5 is higher than embodiment 3, reaches 1.95g/m
2my god, and internal layer is 120kWh/m at ultraviolet irradiation intensity
2time, yellowness index numerical value reaches 4.1, and other performances are similar.
Embodiment 3 is compared discovery with embodiment 6, and the composite back plate of embodiment 6 has 1.8g/m
2it low water vapour permeability, and owing to selecting PC material as intermediate layer, slightly high on cost, other performances are similar.
The water vapour permeability of the composite back plate of above-described embodiment is all lower than 2.0g/m
2my god, and much higher as the water vapour permeability of the backboard of the comparative example 1 of prior art, reach 2.40g/m
2my god.
Following table 3 compares the power output (W) of the monolithic solar cell assembly of embodiment 7-12 and comparative example 1.
Table 3
| Numbering | Power output (unit: W) |
| Embodiment 7 | 245.43 |
| Embodiment 8 | 245.47 |
| Embodiment 9 | 245.59 |
| Embodiment 10 | 245.48 |
| Embodiment 11 | 245.45 |
| Embodiment 12 | 245.38 |
| Comparative example 1 | 245.03 |
As can be seen from Table 3, compared with comprising the solar module of prior art backboard, the power output comprising the solar module of composite back plate of the present invention is high by more than 0.1%.
Should be appreciated that exemplary as herein described should be considered to illustrative and nonrestrictive.And, should by each embodiment about each feature or in description be applicable to other similar characteristics in other embodiments or in.
Although describe one or more embodiment of the present invention by reference to the accompanying drawings, those of ordinary skill in the art are to be understood that, when not departing from by the spirit and scope of the present invention defined by the following claims, the change of various forms and details can be made.
Claims (26)
1. a composite back plate used for solar batteries, it comprises skin, the first adhesive phase, intermediate layer, the second adhesive phase and internal layer in the following order, wherein said skin comprises behavior of polypropylene composites, described intermediate layer has the polymer that power frequency electrical strength is greater than 55V/ μm, described internal layer comprises polyvinyl or ethylene-vinyl acetate copolymer based composites, and being greater than 40N/cm with the interlaminar strength of the encapsulation EVA for solar cell, wherein said composite back plate has lower than 2.0g/m
2it water vapor permeation rate.
2. composite back plate used for solar batteries according to claim 1, the gross thickness of wherein said composite back plate is greater than 250 μm, wherein said skin is in the scope of 3: 1 to 1: 12 with the ratio of the thickness in described intermediate layer, and described intermediate layer is in the scope of 12: 1 to 1: 5 with the ratio of the thickness of described internal layer.
3. composite back plate used for solar batteries according to claim 2, wherein said skin is in the scope of 2: 1 to 1: 8 with the ratio of the thickness in described intermediate layer, and described intermediate layer is in the scope of 8: 1 to 1: 3 with the ratio of the thickness of described internal layer.
4. composite back plate used for solar batteries according to claim 2, wherein said skin is in the scope of 1: 2 to 1: 6 with the ratio of the thickness in described intermediate layer, and described intermediate layer is in the scope of 4: 1 to 1: 2 with the ratio of the thickness of described internal layer.
5. composite back plate used for solar batteries according to claim 1, wherein said behavior of polypropylene composites comprises polypropylene, inorganic filler, uvioresistant additive, flexibilizer and antioxidant.
6. composite back plate used for solar batteries according to claim 5, wherein said behavior of polypropylene composites also comprises other olefin polymers except polypropylene.
7. composite back plate used for solar batteries according to claim 6, other olefin polymers wherein said comprise in polyethylene and ethylene-vinyl acetate copolymer one or more.
8. composite back plate used for solar batteries according to claim 1, wherein said polyethylene based composition comprises polyethylene, inorganic filler, uvioresistant additive and antioxidant.
9. composite back plate used for solar batteries according to claim 1, wherein said ethylene-vinyl acetate copolymer based composites comprises ethylene-vinyl acetate copolymer, inorganic filler, uvioresistant additive and antioxidant.
10. composite back plate used for solar batteries according to claim 8, wherein said polyethylene based composition also comprises other olefin polymers in addition to the polyethylene.
11. composite back plates used for solar batteries according to claim 9, wherein said ethylene-vinyl acetate copolymer based composites also comprises other olefin polymers except ethylene-vinyl acetate copolymer.
12. composite back plates used for solar batteries according to claim 10 or 11, other olefin polymers wherein said comprise propylene copolymer.
13. composite back plates used for solar batteries according to claim 1, wherein said have that polymer that power frequency electrical strength is greater than 55V/ μm comprises in PETG, Merlon, PEN, polybutylene terephthalate (PBT) and polymethyl methacrylate one or more.
14. composite back plates used for solar batteries according to claim 1, the thickness in wherein said intermediate layer is 25 microns to 300 microns.
15. composite back plates used for solar batteries according to claim 1, wherein said outer field thickness is 25 microns to 250 microns.
16. composite back plates used for solar batteries according to claim 1, the thickness of wherein said internal layer is 25 microns to 150 microns.
17. composite back plates used for solar batteries according to claim 5, wherein said flexibilizer comprise in the polypropylene of maleic anhydride graft, the polyethylene of maleic anhydride graft, ethylene-vinyl acetate and polyolefin elastomer one or more.
18. composite back plates used for solar batteries according to claim 8 or claim 9, wherein said inorganic filler comprise in calcium carbonate, titanium dioxide, imvite, kaolin, barium sulfate and hydrotalcite one or more.
19. composite back plates used for solar batteries according to claim 8 or claim 9, wherein said uvioresistant additive package is containing one or more in bigcatkin willow esters of gallic acid, benzophenone class, benzotriazole, group-substituted acrylonitrile, triazines and hindered amines.
20. composite back plates used for solar batteries according to claim 8 or claim 9, wherein said antioxidant comprise in aromatic amine, Hinered phenols and phosphorous acid esters one or more.
21. composite back plates used for solar batteries according to claim 1, wherein said first adhesive phase and/or the second adhesive phase have the thickness of 1 ~ 10 micron.
22. composite back plates used for solar batteries according to claim 1, adhesive contained in wherein said first adhesive phase comprise in polyurethane binding, epoxy adhesive, acrylic adhesives and modified polyolefin hydro carbons adhesive one or more.
23. composite back plates used for solar batteries according to claim 1, adhesive contained in wherein said second adhesive phase comprise in polyurethane binding, epoxy adhesive, acrylic adhesives, modified polyolefin hydro carbons adhesive, titanate ester adhesive and silane-based adhesion agent one or more.
24. composite back plates used for solar batteries according to claim 1, wherein said skin have more than 160 DEG C fusing point and lower than 10g/m
2it water vapor permeation rate.
25. composite back plates used for solar batteries according to claim 1, wherein said composite back plate used for solar batteries has the light reflectivity of at least 90% in the wave-length coverage of 420nm-640nm.
26. 1 kinds of solar modules, it comprises the composite back plate used for solar batteries according to any one of claim 1 to 25.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410108540.1A CN104934494A (en) | 2014-03-21 | 2014-03-21 | Composite backboard used for solar cell and solar cell module including the composite backboard |
| PCT/US2015/020674 WO2015142703A1 (en) | 2014-03-21 | 2015-03-16 | Composite back sheet for solar cell assembly |
| TW104109050A TW201609409A (en) | 2014-03-21 | 2015-03-20 | Composite back sheet for a solar cell assembly and solar cell assembly comprising the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410108540.1A CN104934494A (en) | 2014-03-21 | 2014-03-21 | Composite backboard used for solar cell and solar cell module including the composite backboard |
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| Publication Number | Publication Date |
|---|---|
| CN104934494A true CN104934494A (en) | 2015-09-23 |
Family
ID=54121571
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410108540.1A Pending CN104934494A (en) | 2014-03-21 | 2014-03-21 | Composite backboard used for solar cell and solar cell module including the composite backboard |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104934494A (en) |
| TW (1) | TW201609409A (en) |
| WO (1) | WO2015142703A1 (en) |
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| CN105774156A (en) * | 2016-03-11 | 2016-07-20 | 苏州赛伍应用技术有限公司 | High-water-blocking and high-reflection solar battery back plate and solar battery pack comprising back plate |
| CN105895722A (en) * | 2016-05-25 | 2016-08-24 | 苏州固泰新材股份有限公司 | Polyvinylidene fluoride (PVDF) thin film for single-sided frosted and high-reflection solar backplate and preparation method of PVDF thin film |
| CN109817739A (en) * | 2017-11-16 | 2019-05-28 | 宁波长阳科技股份有限公司 | A kind of solar cell backboard polyester film |
| CN109964320A (en) * | 2016-11-11 | 2019-07-02 | 帝斯曼知识产权资产管理有限公司 | Backboard comprising the functional layer based on polyolefin towards back side encapsulant |
| CN111933734A (en) * | 2020-06-24 | 2020-11-13 | 宁波拓烯新材料科技有限公司 | Novel solar cell backboard and preparation method thereof |
| CN112786721A (en) * | 2021-01-07 | 2021-05-11 | 浙江中聚材料有限公司 | Fluorine-free solar cell back plate and preparation process and application thereof |
| CN112802915A (en) * | 2021-01-07 | 2021-05-14 | 浙江中聚材料有限公司 | High-heat-dissipation solar photovoltaic backboard and preparation process thereof |
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| CN106229368A (en) * | 2016-08-27 | 2016-12-14 | 无锡中洁能源技术有限公司 | A kind of application type solar cell backboard |
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| CN109964320B (en) * | 2016-11-11 | 2024-03-05 | 赢润太阳能解决方案有限公司 | Back sheet comprising a polyolefin-based functional layer facing a back encapsulant |
| CN109817739A (en) * | 2017-11-16 | 2019-05-28 | 宁波长阳科技股份有限公司 | A kind of solar cell backboard polyester film |
| CN111933734A (en) * | 2020-06-24 | 2020-11-13 | 宁波拓烯新材料科技有限公司 | Novel solar cell backboard and preparation method thereof |
| CN112786721A (en) * | 2021-01-07 | 2021-05-11 | 浙江中聚材料有限公司 | Fluorine-free solar cell back plate and preparation process and application thereof |
| CN112802915A (en) * | 2021-01-07 | 2021-05-14 | 浙江中聚材料有限公司 | High-heat-dissipation solar photovoltaic backboard and preparation process thereof |
| CN112786721B (en) * | 2021-01-07 | 2023-01-10 | 浙江中聚材料有限公司 | Fluorine-free solar cell back plate and preparation process and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015142703A1 (en) | 2015-09-24 |
| TW201609409A (en) | 2016-03-16 |
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