CN107369734A - A kind of Weatherproof solar battery back-sheet and preparation method thereof - Google Patents
A kind of Weatherproof solar battery back-sheet and preparation method thereof Download PDFInfo
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- CN107369734A CN107369734A CN201710355568.9A CN201710355568A CN107369734A CN 107369734 A CN107369734 A CN 107369734A CN 201710355568 A CN201710355568 A CN 201710355568A CN 107369734 A CN107369734 A CN 107369734A
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- fluoropolymer
- adhesive
- film
- solar battery
- parts
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- 238000002360 preparation method Methods 0.000 title claims description 27
- 229920002313 fluoropolymer Polymers 0.000 claims abstract description 61
- 239000004811 fluoropolymer Substances 0.000 claims abstract description 57
- 239000010410 layer Substances 0.000 claims abstract description 43
- 239000012790 adhesive layer Substances 0.000 claims abstract description 19
- 229920000428 triblock copolymer Polymers 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 10
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 75
- 230000001070 adhesive effect Effects 0.000 claims description 35
- 239000007822 coupling agent Substances 0.000 claims description 31
- 239000012528 membrane Substances 0.000 claims description 28
- 239000000853 adhesive Substances 0.000 claims description 26
- 239000002131 composite material Substances 0.000 claims description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- 238000004026 adhesive bonding Methods 0.000 claims description 22
- 238000006068 polycondensation reaction Methods 0.000 claims description 22
- UKAJUHOLJKIQDA-UHFFFAOYSA-N 1,2,2,3,3,4-hexafluoropentane-1,1-diol Chemical compound CC(F)C(F)(F)C(F)(F)C(O)(O)F UKAJUHOLJKIQDA-UHFFFAOYSA-N 0.000 claims description 20
- 239000003054 catalyst Substances 0.000 claims description 18
- 230000032050 esterification Effects 0.000 claims description 17
- 238000005886 esterification reaction Methods 0.000 claims description 17
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 16
- 239000003963 antioxidant agent Substances 0.000 claims description 16
- 230000003078 antioxidant effect Effects 0.000 claims description 15
- 238000003490 calendering Methods 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 14
- 238000001125 extrusion Methods 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 14
- 230000008018 melting Effects 0.000 claims description 14
- 229910052787 antimony Inorganic materials 0.000 claims description 12
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 239000000377 silicon dioxide Substances 0.000 claims description 12
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 11
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 11
- 238000006116 polymerization reaction Methods 0.000 claims description 11
- 239000003822 epoxy resin Substances 0.000 claims description 10
- 229920000647 polyepoxide Polymers 0.000 claims description 10
- JVLRYPRBKSMEBF-UHFFFAOYSA-K diacetyloxystibanyl acetate Chemical compound [Sb+3].CC([O-])=O.CC([O-])=O.CC([O-])=O JVLRYPRBKSMEBF-UHFFFAOYSA-K 0.000 claims description 8
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 8
- 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 group 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 claims description 6
- 239000004840 adhesive resin Substances 0.000 claims description 6
- 229920006223 adhesive resin Polymers 0.000 claims description 6
- 229910000410 antimony oxide Inorganic materials 0.000 claims description 6
- 238000013036 cure process Methods 0.000 claims description 6
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 claims description 4
- 239000012792 core layer Substances 0.000 claims description 4
- -1 ethylene-butylene Chemical group 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 235000006708 antioxidants Nutrition 0.000 claims 3
- 150000001336 alkenes Chemical class 0.000 claims 1
- 239000010426 asphalt Substances 0.000 claims 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims 1
- ZSDJVGXBJDDOCD-UHFFFAOYSA-N benzene dioctyl benzene-1,2-dicarboxylate Chemical compound C(C=1C(C(=O)OCCCCCCCC)=CC=CC1)(=O)OCCCCCCCC.C1=CC=CC=C1 ZSDJVGXBJDDOCD-UHFFFAOYSA-N 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- UWJJYHHHVWZFEP-UHFFFAOYSA-N pentane-1,1-diol Chemical compound CCCCC(O)O UWJJYHHHVWZFEP-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 230000032683 aging Effects 0.000 abstract description 10
- 230000004888 barrier function Effects 0.000 abstract description 8
- 229920002799 BoPET Polymers 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002861 polymer material Substances 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 4
- WJAKXPUSJAKPHH-UHFFFAOYSA-N buta-1,3-diene;ethene;styrene Chemical compound C=C.C=CC=C.C=CC1=CC=CC=C1 WJAKXPUSJAKPHH-UHFFFAOYSA-N 0.000 abstract 1
- 239000010408 film Substances 0.000 description 71
- 210000004379 membrane Anatomy 0.000 description 25
- 239000011162 core material Substances 0.000 description 18
- 230000015271 coagulation Effects 0.000 description 12
- 238000005345 coagulation Methods 0.000 description 12
- 229920000642 polymer Polymers 0.000 description 10
- 239000008367 deionised water Substances 0.000 description 7
- 229910021641 deionized water Inorganic materials 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 210000002469 basement membrane Anatomy 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 5
- 239000011651 chromium Substances 0.000 description 5
- 238000010030 laminating Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000007747 plating Methods 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 239000006227 byproduct Substances 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 238000001291 vacuum drying Methods 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 229920002620 polyvinyl fluoride Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 241000790917 Dioxys <bee> Species 0.000 description 2
- 229910003978 SiClx Inorganic materials 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910003849 O-Si Inorganic materials 0.000 description 1
- 229910003872 O—Si Inorganic materials 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- IUHFWCGCSVTMPG-UHFFFAOYSA-N [C].[C] Chemical group [C].[C] IUHFWCGCSVTMPG-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000009396 hybridization Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- 239000000052 vinegar Substances 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
-
- 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
- H01L31/02—Details
- H01L31/0216—Coatings
- H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02167—Coatings for devices characterised by at least one potential jump barrier or surface barrier for 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
- H01L31/02—Details
- H01L31/0216—Coatings
- H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02167—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells
- H01L31/02168—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells the coatings being antireflective or having enhancing optical properties for the 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
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention provides a kind of Weatherproof solar battery back-sheet, include successively：First weathering layer, the first adhesive layer, sandwich layer, the second adhesive layer and the second weathering layer, the good insulating properties of the existing PET film of fluoropolymer of use, mechanical strength and water vapor barrier property, there is fluorinated polymer material weatherability, self-cleaning, anti-corrosive properties, washability, water vapor barrier property and non-adhesiveness etc. again；Second, composition good mechanical property, the resistance to UV aging containing ethylene butadiene styrene triblock copolymer that sandwich layer uses are strong, strong with the caking property of adhesive layer so that the mechanical performance and anti-ultraviolet ageing that whole backboard has had；3rd, the manufacturing process of solar cell backboard provided by the invention is simple, easily operates, be cheap to the less demanding of equipment, cost.Therefore, the solar cell backboard that prepared by the present invention has good weatherability, and cost is relatively low.
Description
Technical field
The present invention relates to technical field of solar cell manufacturing, more particularly to a kind of Weatherproof solar battery back-sheet and its
Preparation method.
Background technology
Solar cell is the device for directly luminous energy being changed into by photoelectric effect or photochemical effect electric energy, extensively
Applied to military affairs, space flight, industry, business, agricultural, communication, household electrical appliance and public utility etc..Solar cell backboard
It is one of solar cell module encapsulating material, its main performance is encapsulation crystalline silicon, plays protection solar components and exempts from water
The effect of the large natural environments such as vapour, ultraviolet, temperature and frost, the quality of its performance directly affect solar cell photoelectric conversion effect
Rate and service life.
Solar panel is typically a laminated construction, by transparent cover plate, sealant layer, solar battery sheet, sealing
Glue-line and solar cell backboard lamination form.Wherein, the main function of solar cell backboard is to improve solar panel
Overall mechanical strength, and can prevent steam from penetrating into sealant, influence the service life of cell piece.Therefore, solar energy
Battery back-sheet, which must insulate i.e., has electrical breakdown withstand, ageing-resistant, resistance against weather influences and the characteristic such as corrosion-resistant.
At present, existing solar cell backboard is produced by the molded mode of stratified film, and conventional backboard can be divided into
TPT, TPE, complete PET and PET/ polyolefin structures, wherein T refer to polyvinyl fluoride (PVF) film of du pont company, its trade name
For Tedlar；P refers to the pet film of biaxial tension, i.e. PET film, also known as polyester film or terylene it is thin
Film；E refers to ethylene-vinyl acetate resin EVA；Polyolefin refers to the various plastics using carbon carbon structure as main chain.Wherein, TPT, TPE have
The fluorochemical surface material of weatherability so that it is had excellent weather resistance, but these fluorine materials are held high from external import, price mostly
Expensive, the backboard weatherability of complete PET and PET/ polyolefin structures is poor, can not meet high-end product requirement.
Therefore, it is necessary to seek significantly more efficient method, the solar battery back that cost is cheap, weather resistance is excellent is prepared
Plate film.
The content of the invention
It is a primary object of the present invention to provide a kind of Weatherproof solar battery back-sheet and preparation method thereof, the solar energy
Battery back-sheet has good weatherability, and cost is relatively low.
To achieve the above objectives, the technical solution adopted by the present invention is：
The present invention provides a kind of Weatherproof solar battery back-sheet, includes successively：First weathering layer, the first adhesive layer, core
Layer, the second adhesive layer and the second weathering layer；First weathering layer and the second weathering layer are each independent by fluoropolymer shape
Into the fluoropolymer is reacted by terephthalic acid (TPA) and hexafluoro pentanediol through esterifying polycondensation to be prepared；First adhesive layer and
Second adhesive is each independent to be formed by ethylene-vinyl acetate copolymer adhesive or epoxy resin adhesive；The core
Layer is formed by first chamber, and the first chamber includes：The ethylene-butadiene-styrene three block of 70-80 parts by weight is total to
Polymers, the silica of 20-30 parts by weight, the antioxidant of the coupling agent of 3-5 parts by weight and 0.5-1 parts by weight.
Preferably, the fluoropolymer is prepared as follows：Terephthalic acid (TPA) and hexafluoro pentanediol are added poly-
Close in reactor, sealing, carry out esterification in 270-300 DEG C of back flow reaction 2-3 hour, then add catalyst, be depressurized to
Below 180Pa, the polycondensation reaction 4-8 hours at 250-270 DEG C, coagulation, fluoropolymer is obtained after drying.
Preferably, the catalyst is antimony oxide, antimony acetate or antimony glycol.
Preferably, the mass ratio of the terephthalic acid (TPA) and hexafluoro pentanediol is 1:(1-1.5).
Preferably, the coupling agent is selected from KH570 types coupling agent, KH550 types coupling agent, KH560 types coupling agent, KH151
One or more in type coupling agent and KH171 type coupling agents.
Preferably, the antioxidant is antioxidant 1010 or antioxidant 300.
Accordingly, the present invention also provides a kind of preparation method of Weatherproof solar battery back-sheet and comprised the following steps：Will
Terephthalic acid (TPA) is reacted with hexafluoro pentanediol through esterifying polycondensation, obtains the first fluoropolymer, and the fluoropolymer is existed
The first Weather-proof film is obtained after 220-250 DEG C of melting extrusion, cooling and solidifying, roll calendering；By terephthalic acid (TPA) and hexafluoro pentanediol
Reacted through esterifying polycondensation, obtain the second fluoropolymer, the fluoropolymer is solid in 220-250 DEG C of melting extrusion, cooling
Change, obtain the second Weather-proof film after roll calendering；By the first adhesive, the second adhesive and first chamber each it is independent
The first gluing film, the second gluing film and core film are obtained after 220-250 DEG C of melting extrusion, cooling and solidifying, roll calendering, described first
Adhesive and the second adhesive each stand alone as ethylene-vinyl acetate copolymer adhesive or epoxy resin adhesive, described
First chamber includes：Ethylene-butadiene-styrene triblock copolymer, the dioxy of 20-30 parts by weight of 70-80 parts by weight
The antioxidant of SiClx, the coupling agent of 3-5 parts by weight and 0.5-1 parts by weight；The corona discharge on the core film, then by described in
First gluing film and the second gluing film are stacked in the upper and lower surface of the core film, compacting, composite membrane are obtained after cooling；Institute
Corona discharge on composite membrane is stated, first Weather-proof film and the second Weather-proof film are stacked in upper surface and the following table of the composite membrane
Face, suppress, Weatherproof solar battery back-sheet is obtained after cure process.
Preferably, first fluoropolymer is prepared as follows：Terephthalic acid (TPA) and hexafluoro pentanediol are added
Enter in polymerization reaction kettle, seal, carry out esterification in 270-300 DEG C of back flow reaction 2-3 hour, then add catalyst, drop
Below 180Pa is depressed into, the polycondensation reaction 4-8 hours at 250-270 DEG C, coagulation, the first fluoropolymer is obtained after drying.
Preferably, the catalyst is antimony oxide, antimony acetate or antimony glycol.
Preferably, the cure process is：16-25 minutes are hardened at 60 DEG C -80 DEG C, then hardening 20 is small at room temperature
When more than.
The present invention provides a kind of Weatherproof solar battery back-sheet, includes successively：First weathering layer, the first adhesive layer, core
Layer, the second adhesive layer and the second weathering layer；First weathering layer and the second weathering layer are each independent by fluoropolymer shape
Into the fluoropolymer is reacted by terephthalic acid (TPA) and hexafluoro pentanediol through esterifying polycondensation to be prepared；First adhesive layer and
Second adhesive is each independent to be formed by ethylene-vinyl acetate copolymer adhesive or epoxy resin adhesive；The sandwich layer
Formed by first chamber, the first chamber includes：The ethylene-butadiene-styrene triblock copolymer of 70-80 parts by weight
Thing, the silica of 20-30 parts by weight, the antioxidant of the coupling agent of 3-5 parts by weight and 0.5-1 parts by weight.With prior art
Compare, first, the good insulating properties of the existing PET film of fluoropolymer that uses of the present invention, mechanical strength and vapor water barriers
Property, there is fluorinated polymer material weatherability, self-cleaning, anti-corrosive properties, washability, water vapor barrier property and non-adhesiveness etc. again；The
Two, composition good mechanical property, the anti-ultraviolet ageing containing ethylene-butadiene-styrene triblock copolymer that sandwich layer uses
Performance is strong, strong with the caking property of adhesive layer so that the mechanical performance and anti-ultraviolet ageing that whole backboard has had；3rd, this
It is simple to invent the manufacturing process of the solar cell backboard provided, easily operates, is cheap to the less demanding of equipment, cost.Cause
This, solar cell backboard prepared by the present invention has good weatherability, and cost is relatively low.
Brief description of the drawings
Fig. 1 is the structural representation of Weatherproof solar battery back-sheet prepared by the present invention.
Embodiment
Describe to be used to disclose the present invention below so that those skilled in the art can realize the present invention.It is excellent in describing below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.
The present invention provides a kind of Weatherproof solar battery back-sheet, as shown in figure 1, including successively：First weathering layer 1,
One adhesive layer 2, sandwich layer 3, the second adhesive layer 4 and the second weathering layer 5；First weathering layer 1 and the second weathering layer 5 each it is independent by
Fluoropolymer is formed, and the fluoropolymer is reacted by terephthalic acid (TPA) and hexafluoro pentanediol through esterifying polycondensation to be prepared；First
The adhesive 4 of adhesive layer 2 and second is each independent by ethylene-vinyl acetate copolymer adhesive or epoxy resin adhesive shape
Into；Sandwich layer 3 is formed by first chamber, and the first chamber includes：The ethylene-butadiene-styrene three of 70-80 parts by weight
Block copolymer, the silica of 20-30 parts by weight, the antioxidant of the coupling agent of 3-5 parts by weight and 0.5-1 parts by weight.
The top layer of Weatherproof solar battery back-sheet provided by the invention is that fluoropolymer and sandwich layer can strengthen basement membrane
Weatherability, C-F key bond energys are strong in fluoropolymer, and inside can form hydrogen bond so that it has preferable weatherability.This hair
Silica-doped polymer in bright, O-Si keys are not easy to break, and polymer physics be crosslinked, therefore its have preferably it is weather-proof
Property.
Preferably, the fluoropolymer is prepared as follows：By terephthalic acid (TPA) and hexafluoro pentanediol
Add in polymerization reaction kettle, sealing, carry out esterification in 270-300 DEG C of back flow reaction 2-3 hour, then add catalyst,
Below 180Pa is depressurized to, the polycondensation reaction 4-8 hours at 250-270 DEG C, coagulation, fluoropolymer is obtained after drying.Fluorine-containing
In the preparation process of polymer, the catalyst is preferably antimony oxide, antimony acetate or antimony glycol；The terephthalic acid (TPA)
Mass ratio with hexafluoro pentanediol is preferably 1:(1.1-1.4), more preferably 1:(1-1.5).The coagulation is preferably in deionization
Carried out in water；The drying temperature is preferably 60-80 DEG C, and drying time is preferably 12-20 hours.
The fluoropolymer that the present invention uses is synthesized by terephthalic acid (TPA) and hexafluoro pentadiol ester, distillation it is easy, easy to operate,
It is not high to equipment requirement, cost can be reduced to a certain extent.
Terephthalic acid (TPA) and hexafluoro pentadiol ester are used for the outer layer of solar cell backboard film by the present invention, and the film inherits
The good insulating properties of PET film, mechanical strength and water vapor barrier property, there is fluorinated polymer material weatherability, self-cleaning again
That is pollution resistance, anti-corrosive properties (salt resistance, Acid Rain), washability, water vapor barrier property, non-adhesiveness, one kind can be used as by overseas enterprise
The substitute of the pvdf membrane of production is monopolized, it is cheap.In addition, the adhesive property of this film and the adhesive of adhesive layer is strong, one
The shortcomings that determining to improve low fluorine material surface energy and non-stick in degree, reduce backboard and occur itself layering in the application i.e.
The probability of splitting.
Preferably, sandwich layer 3 is formed by first chamber, and the first chamber includes：The second of 70-77 parts by weight
Alkene-butadiene-styrene triblock copolymer, the silica of 22-30 parts by weight, the coupling agent of 3-5 parts by weight and 0.6-1 weights
Measure the antioxidant of part.The coupling agent is selected from KH570 types coupling agent, KH550 types coupling agent, KH560 types coupling agent, KH151
One or more in type coupling agent and KH171 type coupling agents.The antioxidant is antioxidant 1010 or antioxidant 300.
The composition of silica-doped ethylene-butadiene-styrene triblock copolymer is used for solar cell
The sandwich layer of backboard, this inorganic-organic hybridization high polymer material, satisfactory mechanical property, the silica of doping can not only fill
, again can be as the effect of ultraviolet absorber when the effect of reinforcing agent, it is not necessary to add other anti-ultraviolet ageing agent again, just have
Anti-ultraviolet ageing ability, in addition, it also has preferable weatherability.On the other hand, this material and the adhesive of adhesive layer
Adhesive property is strong, reduce to a certain extent backboard occur in the application itself layering (splitting) probability therefore, this
The sandwich layer that invention uses is adopted with more preferable mechanical performance, inoxidizability, anti-ultraviolet ageing.
Accordingly, the present invention also provides a kind of preparation method of Weatherproof solar battery back-sheet, comprises the following steps：Will
Terephthalic acid (TPA) is reacted with hexafluoro pentanediol through esterifying polycondensation, obtains the first fluoropolymer, and the fluoropolymer is existed
The first Weather-proof film is obtained after 220-250 DEG C of melting extrusion, cooling and solidifying, roll calendering；By terephthalic acid (TPA) and hexafluoro pentanediol
Reacted through esterifying polycondensation, obtain the second fluoropolymer, the fluoropolymer is solid in 220-250 DEG C of melting extrusion, cooling
Change, obtain the second Weather-proof film after roll calendering；By the first adhesive, the second adhesive and first chamber each it is independent
The first gluing film, the second gluing film and core film are obtained after 220-250 DEG C of melting extrusion, cooling and solidifying, roll calendering, described first
Adhesive and the second adhesive each stand alone as ethylene-vinyl acetate copolymer adhesive or epoxy resin adhesive, described
First chamber includes：Ethylene-butadiene-styrene triblock copolymer, the dioxy of 20-30 parts by weight of 70-80 parts by weight
The antioxidant of SiClx, the coupling agent of 3-5 parts by weight and 0.5-1 parts by weight；The corona discharge on the core film, then by described in
First gluing film and the second gluing film are stacked in the upper and lower surface of the core film, compacting, composite membrane are obtained after cooling；Institute
Corona discharge on composite membrane is stated, first Weather-proof film and the second Weather-proof film are stacked in upper surface and the following table of the composite membrane
Face, suppress, Weatherproof solar battery back-sheet is obtained after cure process.
The number of corona discharge is preferably 15-20 times on the core film；The number of corona discharge on the composite membrane
Preferably 15-20 times；The press temperature for obtaining composite membrane is preferably 110 DEG C -120 DEG C；Obtain the Weatherproof solar battery back of the body
Press temperature is preferably 110 DEG C -120 DEG C；The cure process is：16-25 minutes are hardened at 60 DEG C -80 DEG C, then in room
The lower hardening of temperature more than 20 hours.
Preferably, first fluoropolymer is prepared as follows：By terephthalic acid (TPA) and hexafluoro penta
Glycol is added in polymerization reaction kettle, sealing, is carried out esterification in 270-300 DEG C of back flow reaction 2-3 hour, is then added catalysis
Agent, below 180Pa is depressurized to, the polycondensation reaction 4-8 hours at 250-270 DEG C, coagulation, the first fluoropolymer is obtained after drying
Thing.Wherein, the catalyst is preferably antimony oxide, antimony acetate or antimony glycol；The terephthalic acid (TPA) and hexafluoro penta 2
The mass ratio of alcohol is preferably 1:(1.1-1.4), more preferably 1:(1-1.5).The coagulation is preferably carried out in deionized water；Institute
It is preferably 60-80 DEG C to state drying temperature, and drying time is preferably 12-20 hours.
First fluoropolymer and the second fluoropolymer are preferably identical.Second fluoropolymer preferably according to
It is prepared by following method：Terephthalic acid (TPA) and hexafluoro pentanediol are added in polymerization reaction kettle, sealing, it is anti-in 270-300 DEG C of backflow
Answer 2-3 hours to carry out esterification, then add the second catalyst, be depressurized to below 180Pa, polycondensation is anti-at 250-270 DEG C
Answer 4-8 hours, coagulation, the second fluoropolymer is obtained after drying.Wherein, second catalyst be preferably antimony oxide,
Antimony acetate or antimony glycol；The mass ratio of the terephthalic acid (TPA) and hexafluoro pentanediol, preferably 1:(1-1.5), more preferably
1:(1.1-1.4).The coagulation is preferably carried out in deionized water；The drying temperature is preferably 60-80 DEG C, and drying time is excellent
Elect 12-20 hours as.
From above scheme as can be seen that Weatherproof solar battery back-sheet provided by the invention and preparation method thereof has such as
Lower feature：
(1) solar cell backboard prepared by the present invention, because the fluoropolymer of surfaces externally and internally is p-phthalic acid
With hexafluoro pentanediol through being esterified obtained condensation polymer, the good insulating properties of existing PET film, mechanical strength and vapor water barriers
Property, there is fluorinated polymer material weatherability, self-cleaning (pollution resistance), anti-corrosive properties (salt resistance, Acid Rain), washability, steam again
Barrier, non-adhesiveness etc.；
(2) solar cell backboard prepared by the present invention, core material is using good mechanical property, resistance to UV aging
By force, the composition of the ethylene-butadiene-styrene triblock copolymer strong with the adhesive property of adhesive layer so that whole backboard
With good mechanical performance and anti-ultraviolet ageing；
(3) solar cell backboard that the present invention designs is simple to manufacture, and is easily operated, to the less demanding of equipment, cost
It is cheap.
For a further understanding of the present invention, technical scheme provided by the invention is carried out specifically with reference to embodiment
Bright, protection scope of the present invention is not limited by the following examples.
Other auxiliary agents come from Haiquan sunrise foreign trade Co., Ltd used in the following embodiments of the present invention.
Embodiment 1
The preparation method of the fluoropolymer comprises the following steps：By 100g p-phthalic acids and 140g hexafluoros penta 2
Alcohol adds polymerization reaction kettle, sealing, carries out within 2 hours esterification in 270 DEG C of back flow reactions, catalyst three is added after esterification
Aoxidize two antimony, be depressurized to below 180Pa, polycondensation reaction 4 hours is carried out at 250 DEG C, after by product in deionized water coagulation,
Dried 12 hours at 60 DEG C in vacuum drying chamber, obtain fluoropolymer.
The first chamber for forming sandwich layer is made up of the component of following parts by weight：Ethylene-butadiene-styrene three block is total to
70 parts of polymers, 20 parts of silica, coupling agent KH5703 parts, 0.5 part of antioxidant 1010.
The preparation method of Weatherproof solar battery back-sheet is as follows：
The preparation of basement membrane：The fluoropolymer, ethylene-vinyl acetate copolymer and first chamber are existed respectively
Melting extrusion in 250 DEG C of extruder, and by the calendering of clothes hanger type T- moulds, the stack of chromium plating, dryer roll etc., respectively obtain
Thickness is 30 microns of Weather-proof film, gluing film and core film；
Film layer is folded：Corona discharge 20 times on core film, by using the EXCELAM- of GMP companies at 120 DEG C
Gluing film is stacked in the upper and lower surface of the composition film of ethylene-butadiene-styrene triblock copolymer by PLUS655RM laminating machinees
Suppressed, reciprocating operation three times, is cooled to room temperature, obtains composite membrane；Corona discharge 16 will be carried out on obtained composite membrane again
After secondary, Weather-proof film is stacked in the upper and lower surface of the composite membrane at 110 DEG C by laminator, reciprocating operation five times,
Hardened at 60 DEG C 16 minutes, then obtain Weatherproof solar battery back-sheet in hardening more than 20 hours at room temperature.
Embodiment 2
The preparation method of the fluoropolymer comprises the following steps：By 100g p-phthalic acids and 130g hexafluoros penta 2
Alcohol adds polymerization reaction kettle, sealing, carries out within 2.5 hours esterification in 280 DEG C of back flow reactions, catalyst is added after esterification
Antimony acetate, be depressurized to below 180Pa, polycondensation reaction 5 hours carried out at 260 DEG C, after by product in deionized water coagulation,
Dried 15 hours at 65 DEG C in vacuum drying chamber, obtain fluoropolymer.
The first chamber for forming sandwich layer is made up of the component of following parts by weight：Ethylene-butadiene-styrene three block is total to
72 parts of polymers, 23 parts of silica, coupling agent KH5504 parts, 3000.7 parts of antioxidant.
The preparation method of Weatherproof solar battery back-sheet is as follows：
The preparation of basement membrane：The fluoropolymer, ethylene-vinyl acetate copolymer and first chamber are existed respectively
Melting extrusion in 240 DEG C of extruder, and by the calendering of clothes hanger type T- moulds, the stack of chromium plating, dryer roll etc., respectively obtain
Thickness is 35 microns of Weather-proof film, gluing film and core film；
Film layer is folded：Corona discharge 16 times on core film, by using the EXCELAM- of GMP companies at 110 DEG C
Gluing film is stacked in the upper and lower surface of the composition film of ethylene-butadiene-styrene triblock copolymer by PLUS655RM laminating machinees
Suppressed, reciprocating operation three times, is cooled to room temperature, obtains composite membrane；Corona discharge 18 will be carried out on obtained composite membrane again
After secondary, Weather-proof film is stacked in the upper and lower surface of the composite membrane at 105 DEG C by laminator, reciprocating operation five times,
Hardened at 70 DEG C 20 minutes, then obtain Weatherproof solar battery back-sheet in hardening more than 20 hours at room temperature.
Embodiment 3
The preparation method of the fluoropolymer comprises the following steps：By 100g p-phthalic acids and 120g hexafluoros penta 2
Alcohol adds polymerization reaction kettle, sealing, carries out within 2.4 hours esterification in 290 DEG C of back flow reactions, catalyst is added after esterification
Antimony glycol, be depressurized to below 180Pa, polycondensation reaction 4.5 hours carried out at 255 DEG C, after product is gathered in deionized water
It is heavy, dried 18 hours at 70 DEG C in vacuum drying chamber, obtain fluoropolymer.
The first chamber for forming sandwich layer is made up of the component of following parts by weight：Ethylene-butadiene-styrene three block is total to
75 parts of polymers, 25 parts of silica, coupling agent KH5604 parts, 0.8 part of antioxidant 1010.
The preparation method of Weatherproof solar battery back-sheet is as follows：
The preparation of basement membrane：By the fluoropolymer, epoxy resin and first chamber respectively in 220 DEG C of extruder
Melting extrusion, and by the calendering of clothes hanger type T- moulds, the stack of chromium plating, dryer roll etc., it is 40 microns to respectively obtain thickness
Weather-proof film, gluing film and core film；
Film layer is folded：Corona discharge 17 times on core film, by using the EXCELAM- of GMP companies at 110 DEG C
Gluing film is stacked in the upper and lower surface of the composition film of ethylene-butadiene-styrene triblock copolymer by PLUS655RM laminating machinees
Suppressed, reciprocating operation three times, is cooled to room temperature, obtains composite membrane；Corona discharge 18 will be carried out on obtained composite membrane again
After secondary, Weather-proof film is stacked in the upper and lower surface of the composite membrane at 115 DEG C by laminator, reciprocating operation five times,
Hardened at 75 DEG C 16 minutes, then obtain Weatherproof solar battery back-sheet in hardening more than 20 hours at room temperature.
Embodiment 4
The preparation method of the fluoropolymer comprises the following steps：By 100g p-phthalic acids and 110g hexafluoros penta 2
Alcohol adds polymerization reaction kettle, sealing, carries out within 3 hours esterification in 280 DEG C of back flow reactions, catalyst vinegar is added after esterification
Sour antimony, is depressurized to below 180Pa, and polycondensation reaction 6 hours is carried out at 260 DEG C, after by product in deionized water coagulation, true
Dried 20 hours at 70 DEG C in empty drying box, obtain fluoropolymer.
The first chamber for forming sandwich layer is made up of the component of following parts by weight：Ethylene-butadiene-styrene three block is total to
77 parts of polymers, 27 parts of silica, coupling agent KH1715 parts, 3001 parts of antioxidant.
The preparation method of Weatherproof solar battery back-sheet is as follows：
The preparation of basement membrane：By the fluoropolymer, epoxy resin and first chamber respectively in 240 DEG C of extruder
Melting extrusion, and by the calendering of clothes hanger type T- moulds, the stack of chromium plating, dryer roll etc., it is 35 microns to respectively obtain thickness
Weather-proof film, gluing film and core film；
Film layer is folded：Corona discharge 19 times on core film, by using the EXCELAM- of GMP companies at 110 DEG C
Gluing film is stacked in the upper and lower surface of the composition film of ethylene-butadiene-styrene triblock copolymer by PLUS655RM laminating machinees
Suppressed, reciprocating operation three times, is cooled to room temperature, obtains composite membrane；Corona discharge 15 will be carried out on obtained composite membrane again
After secondary, Weather-proof film is stacked in the upper and lower surface of the composite membrane at 110 DEG C by laminator, reciprocating operation five times,
Hardened at 65 DEG C 19 minutes, then obtain Weatherproof solar battery back-sheet in hardening more than 20 hours at room temperature.
Embodiment 5
The preparation method of the fluoropolymer comprises the following steps：By 100g p-phthalic acids and 135g hexafluoros penta 2
Alcohol adds polymerization reaction kettle, sealing, carries out within 3 hours esterification in 300 DEG C of back flow reactions, catalyst three is added after esterification
Aoxidize two antimony, be depressurized to below 180Pa, polycondensation reaction 7 hours is carried out at 270 DEG C, after by product in deionized water coagulation,
Dried 20 hours at 80 DEG C in vacuum drying chamber, obtain fluoropolymer.
The first chamber for forming sandwich layer is made up of the component of following parts by weight：Ethylene-butadiene-styrene three block is total to
80 parts of polymers, 30 parts of silica, coupling agent KH5505 parts, 1 part of antioxidant 1010.
The preparation method of Weatherproof solar battery back-sheet is as follows：
The preparation of basement membrane：By the fluoropolymer, epoxy resin and first chamber respectively in 250 DEG C of extruder
Melting extrusion, and by the calendering of clothes hanger type T- moulds, the stack of chromium plating, dryer roll etc., it is 30 microns to respectively obtain thickness
Weather-proof film, gluing film and core film；
Film layer is folded：Corona discharge 17 times on core film, by using the EXCELAM- of GMP companies at 120 DEG C
Gluing film is stacked in the upper and lower surface of the composition film of ethylene-butadiene-styrene triblock copolymer by PLUS655RM laminating machinees
Suppressed, reciprocating operation three times, is cooled to room temperature, obtains composite membrane；Corona discharge 18 will be carried out on obtained composite membrane again
After secondary, Weather-proof film is stacked in the upper and lower surface of the composite membrane at 120 DEG C by laminator, reciprocating operation five times,
Hardened at 80 DEG C 17 minutes, then obtain Weatherproof solar battery back-sheet in hardening more than 20 hours at room temperature.
Various embodiments of the present invention the performance test results are as shown in table 1.At present, U.S.'s product surface tension force of in the market is
40mN/cm, film bond strength between layers 20-40N/10mm, 1300 hours (85 DEG C × 85%RH) insulating properties 50- of weather resistance
70KV/mm, moisture-vapor transmission 4.3g/m2.d.It is similar better than external from following table as can be seen that the present invention is on indices
Product.
The embodiment solar energy backboard membrane the performance test results of table 1
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, that described in above-described embodiment and specification is the present invention
Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these change and
Improvement is both fallen within the range of claimed invention.
Claims (10)
1. a kind of Weatherproof solar battery back-sheet, it is characterised in that include successively：First weathering layer, the first adhesive layer, core
Layer, the second adhesive layer and the second weathering layer；
First weathering layer and the second weathering layer are each independent to be formed by fluoropolymer, and the fluoropolymer is by benzene
Dioctyl phthalate reacts with hexafluoro pentanediol through esterifying polycondensation to be prepared；
First adhesive layer and the second adhesive are each independent by ethylene-vinyl acetate copolymer adhesive or asphalt mixtures modified by epoxy resin
Fat adhesive is formed；
The sandwich layer is formed by first chamber, and the first chamber includes：The ethylene-butylene of 70-80 parts by weight-benzene second
Alkene triblock copolymer, the silica of 20-30 parts by weight, the coupling agent of 3-5 parts by weight and 0.5-1 parts by weight it is anti-oxidant
Agent.
2. Weatherproof solar battery back-sheet according to claim 1, it is characterised in that the fluoropolymer is according to such as
It is prepared by lower section method：
Terephthalic acid (TPA) and hexafluoro pentanediol are added in polymerization reaction kettle, sealing, in 270-300 DEG C of back flow reaction 2-3 hour
Esterification is carried out, catalyst is then added, is depressurized to below 180Pa, the polycondensation reaction 4-8 hours at 250-270 DEG C, is gathered
It is heavy, obtain fluoropolymer after drying.
3. Weatherproof solar battery back-sheet according to claim 2, it is characterised in that the catalyst is three oxidations two
Antimony, antimony acetate or antimony glycol.
4. Weatherproof solar battery back-sheet according to claim 2, it is characterised in that the terephthalic acid (TPA) and hexafluoro
The mass ratio of pentanediol is 1:(1-1.5).
5. Weatherproof solar battery back-sheet according to claim 1, it is characterised in that the coupling agent is selected from KH570
One kind or several in type coupling agent, KH550 types coupling agent, KH560 types coupling agent, KH151 types coupling agent and KH171 type coupling agents
Kind.
6. Weatherproof solar battery back-sheet according to claim 1, it is characterised in that the antioxidant is antioxidant
1010 or antioxidant 300.
7. a kind of preparation method of Weatherproof solar battery back-sheet, it is characterised in that comprise the following steps：
Terephthalic acid (TPA) is reacted with hexafluoro pentanediol through esterifying polycondensation, the first fluoropolymer is obtained, by the fluoropolymer
Thing obtains the first Weather-proof film after 220-250 DEG C of melting extrusion, cooling and solidifying, roll calendering；
Terephthalic acid (TPA) is reacted with hexafluoro pentanediol through esterifying polycondensation, the second fluoropolymer is obtained, by the fluoropolymer
Thing obtains the second Weather-proof film after 220-250 DEG C of melting extrusion, cooling and solidifying, roll calendering；
First adhesive, the second adhesive and first chamber is each independent solid in 220-250 DEG C of melting extrusion, cooling
Change, obtain the first gluing film, the second gluing film and core film after roll calendering, first adhesive and the second adhesive are each only
Stand includes for ethylene-vinyl acetate copolymer adhesive or epoxy resin adhesive, the first chamber：70-80 weight
Part ethylene-butadiene-styrene triblock copolymer, the silica of 20-30 parts by weight, the coupling agent of 3-5 parts by weight and
The antioxidant of 0.5-1 parts by weight；
The corona discharge on the core film, then the first gluing film and the second gluing film are stacked in the upper surface of the core film
And lower surface, compacting, composite membrane is obtained after cooling；
The corona discharge on the composite membrane, first Weather-proof film and the second Weather-proof film are stacked in the upper surface of the composite membrane
And lower surface, suppress, Weatherproof solar battery back-sheet is obtained after cure process.
8. preparation method according to claim 7, it is characterised in that first fluoropolymer is made as follows
It is standby：
Terephthalic acid (TPA) and hexafluoro pentanediol are added in polymerization reaction kettle, sealing, in 270-300 DEG C of back flow reaction 2-3 hour
Esterification is carried out, catalyst is then added, is depressurized to below 180Pa, the polycondensation reaction 4-8 hours at 250-270 DEG C, is gathered
It is heavy, obtain the first fluoropolymer after drying.
9. preparation method according to claim 8, it is characterised in that the catalyst be antimony oxide, antimony acetate or
Antimony glycol.
10. preparation method according to claim 7, it is characterised in that the cure process is：It is hard at 60 DEG C -80 DEG C
Change 16-25 minutes, then harden more than 20 hours at room temperature.
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| CN108461565A (en) * | 2017-05-19 | 2018-08-28 | 浙江帝恒实业有限公司 | A kind of Weatherproof solar battery back-sheet and preparation method thereof |
| CN108767033A (en) * | 2018-05-25 | 2018-11-06 | 北京汉能光伏投资有限公司 | Solar cell package plate and its preparation process, solar cell |
| CN108767057A (en) * | 2018-05-25 | 2018-11-06 | 北京汉能光伏投资有限公司 | Solar cell package plate and its preparation process, solar cell |
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| CN111391457A (en) * | 2018-12-28 | 2020-07-10 | 汉能移动能源控股集团有限公司 | Front plate of solar cell module, solar cell module and preparation method of solar cell module |
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| CN114864719B (en) * | 2022-04-13 | 2024-03-12 | 浙江合特光电有限公司 | Solar cell backboard with high weather resistance and high water vapor barrier property and preparation method thereof |
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