CN103456817A - Fluoride-free solar cell back panel and manufacturing method thereof - Google Patents
Fluoride-free solar cell back panel and manufacturing method thereof Download PDFInfo
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- CN103456817A CN103456817A CN2013103623809A CN201310362380A CN103456817A CN 103456817 A CN103456817 A CN 103456817A CN 2013103623809 A CN2013103623809 A CN 2013103623809A CN 201310362380 A CN201310362380 A CN 201310362380A CN 103456817 A CN103456817 A CN 103456817A
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- -1 UV-O Chemical compound 0.000 claims description 3
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 claims description 3
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- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 2
- 239000012964 benzotriazole Substances 0.000 claims description 2
- 239000003607 modifier Substances 0.000 claims description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
-
- 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
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Abstract
The invention provides a fluoride-free solar cell back panel material. The back panel material is divided into three layers respectively including a weather-proof layer, a middle layer and a bonding layer. Specifically, the weather-proof layer is made of modified PC; the middle layer is made of modified PBT; the bonding layer is made of modified PC, the materials in all layers are mixed, the mixed materials are extruded out through a double-screw extruder and then are co-extruded through a multi-layer co-extrusion device to obtain the back panel material. According to a fluoride-free solar cell back panel, the fluorine-containing material and the bonder are not needed, the materials in all layers can adhere to one another through the multi-layer co-extrusion technology, the physical performance is good, and the cost is low.
Description
Technical field
The present invention relates to solar cell device, particularly a kind of solar cell backboard material and preparation method thereof.
Background technology
After Tokyo Electric Power's Fukushima the first nuclear power plant accident, various circles of society think deeply the development problem of regenerative resource again.Solar energy is as a kind of clean, free of contamination regenerative resource, being subject to people's attention all the more.Solar cell backboard is positioned at the back side of solar panel, and cell piece is played to protection and supporting role, requires to have certain performance, as characteristics such as insulating properties, water preventing abilities.At present, the backboard product occurred on market mainly comprises:
(1) a kind of is combined type gluing backboard membrane, is exactly at the compound fluorine film in PET film two sides, as PVDF, and ETFE or EVA glued membrane, three-decker, common are the TPT structure.
(2) a kind of for applying backboard membrane, at PET polyester film coated on both sides fluororesin, the drying film-forming.
Pressure along with scientific and technical development and labour and the cost of raw material, backboard has experienced two fluorine backboards-mono-fluorine backboard-such a development course of floride-free backboard, the cost of two fluorine backboards is the most expensive, in the process of practical application, solar module is in application process, the solar energy ultraviolet ray is via toughened glass, after cell piece and EVA glued membrane, really shine the also few of solar energy back plate surface, so do not have the real value that realizes him as fluorine material in traditional fluorine-containing backboard, and use in the market fluorine material majority comparatively widely to adopt Kynoar, the process of Kynoar in the processing film forming found in research, local temperature is too high, can produce fast HF gas, with the calcareous absorption in skeleton, damage periosteum and sclerotin.Simultaneously the surface wettability of Kynoar is very poor, when unprocessed and other plastic basis material be difficult to bonding.Therefore develop a kind of free-floride, there is good insulating properties, water preventing ability, ageing-resistant performance excellence, process simple new type solar energy backboard tool and have very great significance.
Summary of the invention
Technical problem to be solved by this invention is: in existing solar cell backboard technology, the fluorine material is not fully utilized, and the caking property of fluorine material and other plastics is poor, and easily produces harmful HF gas.
For solving this technical problem, the technical solution used in the present invention is:
The invention provides a kind of novel floride-free solar energy backboard, weathering layer is layer of polycarbonate (modification PC layer), intermediate layer is polybutylene terephthalate (PBT) (modified PBT layer), tack coat is modified polycarbonate layer (PC layer), do not need to use fluorine material and binding agent, adopt multi-layer co-extruded technology to realize bonding between layer and layer material, physical property excellence, cheap
Merlon is a kind of linear condensation polymer, have that the transparency is good, hot formability is good, mechanical performance is excellent, case hardness is large, wear-resisting and lubrification and higher impact property arranged, the characteristics such as good insulating, and the C=O in strand has certain polarity, can well be bonded together with the polymeric material of polarity, improve deflection and the hot strength of composite membrane.
Back veneer material is divided into 3 layers, is respectively weathering layer, intermediate layer, tack coat, and the batch mixing of each layer, first extrude by double screw extruder, then carries out coextrusion through multi-layer co-extruded device, obtains back veneer material,
(1) PC that weathering layer is modification, specifically, count by weight, by the PC of 100 parts, and 5～10 parts of ultraviolet light screeners, 1～10 part of ultraviolet absorber, 0.5～1 part of light stabilizer, and 1～10 part of modified poly resin composition,
Ultraviolet light screener is mainly in order to improve the UVResistant effect of PC, prevents that the PC macromolecular chain from degrading, and material aging, as TiO
2, ZnO, SiO
2deng, effective acting time is long, has good chemical stability and thermal stability, nontoxic, nonirritant, and with other auxiliary agent, chemical reaction does not occur, through the TiO of surface modification
2, ZnO, SiO
2good dispersion in resin matrix, be difficult for reuniting, as R706, the R902 etc. of Du Pont's production,
The ultraviolet absorber that ultraviolet absorber is benzophenone class, benzotriazole, the fine class of replacement propylene and triazines, be selected from UV-P, UV-O, and UV-9 or UV-531,
Light stabilizer, be mainly to carry out compositely with ultraviolet absorber, reaches better UVResistant effect, and main component is hindered amines, as AM-101, and GW-540,744, HPT etc.,
The modifier that the modified poly resin is TPO, water absorption that can decrease PC, improve the hydrolytic resistance of its film, as HD900P, PC-33C or TRD-428P;
(2) PBT that intermediate layer is modification, specifically, count by weight, by the PBT of 80～90 parts, and the uvioresistant screener of 5～10 parts, the hydrolysis-resisting agent of 1～5 part forms,
The uvioresistant screener is mainly in order to improve the UVResistant effect of PBT, prevents that the PBT macromolecular chain from degrading, and material aging, as TiO
2, ZnO, SiO
2deng, effective acting time is long, has good chemical stability and thermal stability, nontoxic, nonirritant, and with other auxiliary agent, chemical reaction does not occur, through the TiO of surface modification
2, ZnO, SiO
2good dispersion in resin matrix, be difficult for reuniting, as R706, the R902 etc. of Du Pont's production,
Hydrolysis-resisting agent is polycarbodiimide, good with the compatibility of polyester, under hot conditions, to the macromolecular chain repairing effect of polyester, plays the effect that prevents and reduce the macromolecular chain degraded, effectively keeps high molecular molecular weight, keeps the physical and mechanical properties of material;
(3) PC that tack coat is modification, specifically, count by weight, and by the PC of 80～90 parts, the TPO copolymer of 10～20 parts forms,
The TPO copolymer is selected from, a kind of or two kinds of blends in ethylene ethyl acrylate copolymer (EEA), ethylene-methyl acrylate copolymer (EMA), ethene-(methyl) acrylic copolymer (EMAA, EAA).
The present invention also provides a kind of preparation method of above-mentioned solar energy back veneer material, respectively by the batch mixing of above-mentioned weathering layer, intermediate layer, tack coat, add melting in double screw extruder, each melt converges in the die head of multi-layer co-extruded device by runner separately, through the die head coextrusion, through extruding, cooling, the post bake, cooling again of chill roll, prepare the floride-free backboard of multilayer.
The invention has the beneficial effects as follows: compared with prior art, patent of the present invention is not used fluorine resin, the solar cell backboard that adopts multi-layer co-extruded processing mode to prepare, do not need to use adhesive, PC and PBT are carried out to modification, the floride-free back board structure that coextrusion obtains has better mechanical property, adhesive property excellence, weatherability and resistant to hydrolysis ability excellence between layers, guaranteed the useful life of solar cell, and the preparation method is simple, serialization is produced fast, and cost declines to a great extent, and has extraordinary application prospect.
The accompanying drawing explanation
The solar energy back board structure schematic diagram that Fig. 1: embodiment 1 prepares.By order from top to bottom, ground floor is weathering layer, modification PC; The second layer is the structural reinforcing layer, modified PBT; The 3rd layer is tack coat, modification PC.
Embodiment
Embodiment 1
Count by weight: 100 parts of PC (the strange beautiful PC-110 in Taiwan), 5 parts of titanium dioxide (Ti-Pure R902), 1 part of UV-P, 0.5 part of AM-101 and 5 parts of modified poly resin HD900P are mixed, batch mixing is added to double screw extruder, and (Guangzhou general same experimental analysis Instrument Ltd. manufactures, screw slenderness ratio is 44:1, engine speed 120r/min, feeding rotating speed 140r/min) in, melt extrude to the shunting die head, extruder temperature is set as: barrel temperature (℃): 170,230,250,260; Die head (℃): 270,280,280.
Meter by weight: by 80 parts of PBT(Dupont SK605), 5 parts of titanium dioxide (Ti-Pure R902) and 1 part of polycarbodiimide (Shanghai outstanding grace chemical industry Co., Ltd) mix, batch mixing is added in double screw extruder (manufacture of the good plant equipment of Qidong ancient cooking vessel Co., Ltd), melt to the shunting die head, extruder temperature is set as: barrel temperature (℃): 200,220,240,270; Die head (℃): 270,260,250.
Count by weight: by 80 parts of PC (the strange beautiful PC-110 in Taiwan), 20 parts of EAA(LG-DOWs 3150) mix, batch mixing is added in double screw extruder (Guangzhou general same experimental analysis Instrument Ltd. manufactures), melt to the shunting die head, extruder temperature is set as: barrel temperature (℃): 170,230,250,260; Die head (℃): 270,280,280.
Above-mentioned each melt by runner separately, converges in the die head of multi-layer co-extruded device, and through the die head coextrusion, through the extruding of chill roll, cooling, post bake (80 ℃ of temperature), the cooling floride-free backboard of multilayer for preparing again, rolling is stand-by.
Embodiment 2
Meter by weight: by 100 parts of PC(Bayer Bitterfeld GmbHs 2407), 10 parts of titanium dioxide (Ti-Pure R706), 10 parts of UV-O, 1 part of AM-101 and 10 parts of modified poly resin PC-33C mix, batch mixing is added in double screw extruder (Guangzhou general same experimental analysis Instrument Ltd. manufactures), melt extrude to the shunting die head, extruder temperature is set as: barrel temperature (℃): 200,220,240,270; Die head (℃): 270,260,250.
Meter by weight: by 90 parts of PBT(Polyplastics 3116), 10 parts of titanium dioxide (Ti-Pure R902) and 5 parts of polycarbodiimides (Shanghai outstanding grace chemical industry Co., Ltd) mix, batch mixing is added in double screw extruder (manufacture of the good plant equipment of Qidong ancient cooking vessel Co., Ltd), melting ester shunting die head, extruder temperature is set as: barrel temperature (℃): 200,220,240,270; Die head (℃): 270,260,250.
By weight the meter: by 90 parts of PC(Bayer Bitterfeld GmbHs 2407), 10 parts of EVA(Dupont 1075A) mix, batch mixing is added in double screw extruder (Guangzhou general same experimental analysis Instrument Ltd. manufactures), melt to the shunting die head, extruder temperature is set as: barrel temperature (℃): 200,220,240,270; Die head (℃): 270,260,250.
Above-mentioned each melt by runner separately, converges in the die head of multi-layer co-extruded device, and through the die head coextrusion, through the extruding of chill roll, cooling, post bake (80 ℃ of heating-up temperatures), the cooling floride-free backboard of multilayer for preparing again, rolling is stand-by.
Embodiment 3
Meter by weight: by 100 parts of PC(Samsung 1100R), 6 parts of zinc oxide, 5 parts of UV-0,0.7 part of GW-540 and 10 parts of modified poly resin TRD-428P mix, batch mixing is added in double screw extruder (Guangzhou general same experimental analysis Instrument Ltd. manufactures), melt extrude to the shunting die head, extruder temperature is set as: barrel temperature (℃): 200,220,240,270; Die head (℃): 270,260,250.
Meter by weight: by 85 parts of PBT(Dupont SK602), 10 parts of titanium dioxide and 2 parts of polycarbodiimides (Shanghai outstanding grace chemical industry Co., Ltd) mix, batch mixing is added in double screw extruder (manufacture of the good plant equipment of Qidong ancient cooking vessel Co., Ltd), melting ester shunting die head, extruder temperature is set as: barrel temperature (℃): 200,220,240,270; Die head (℃): 270,260,250.
By weight the meter: by 80 parts of PC(Samsung 1100R), 20 parts of EMAA(Duponts 7940) mix, batch mixing is added in double screw extruder (Guangzhou general same experimental analysis Instrument Ltd. manufactures), melt to the shunting die head, extruder temperature is set as: barrel temperature (℃): 200,220,240,270; Die head (℃): 270,260,250.
Above-mentioned each melt by runner separately, converges in the die head of multi-layer co-extruded device, and through the die head coextrusion, through the extruding of chill roll, cooling, post bake (80 ℃ of heating-up temperatures), the cooling floride-free backboard of multilayer for preparing again, rolling is stand-by.
Embodiment 4
Meter by weight: by 100 parts of PC(Bayer Bitterfeld GmbHs 2407), 5 parts of silicon dioxide, 1 part of UV-9,0.5 part 744 and 10 parts modified poly resin HD900P mix, batch mixing is added in double screw extruder (Guangzhou general same experimental analysis Instrument Ltd. manufactures), melt extrude to the shunting die head, extruder temperature is set as: barrel temperature (℃): 200,220,240,270; Die head (℃): 270,260,250.
Meter by weight: by 80 parts of PBT(Dupont SK605), 5 parts of zinc oxide and 1 part of polycarbodiimide mix, batch mixing is added in double screw extruder (manufacture of the good plant equipment of Qidong ancient cooking vessel Co., Ltd), melting ester shunting die head, extruder temperature is set as: barrel temperature (℃): 200,220,240,270; Die head (℃): 270,260,250.
By weight the meter: by 85 parts of PC(Bayer Bitterfeld GmbHs 2407), 15 parts of EMA(Dupont E403) mix, batch mixing is added in double screw extruder (Guangzhou general same experimental analysis Instrument Ltd. manufactures), melt to the shunting die head, extruder temperature is set as: barrel temperature (℃): 200,220,240,270; Die head (℃): 270,260,250.
Above-mentioned each melt by runner separately, converges in the die head of multi-layer co-extruded device, and through the die head coextrusion, through the extruding of chill roll, cooling, post bake (80 ℃ of heating-up temperatures), the cooling floride-free backboard of multilayer for preparing again, rolling is stand-by.
The solar energy backboard that embodiment 1～4 prepares carries out performance test:
Hot strength and elongation at break are according to ASTM D882 standard testing; UVB is aging according to ageing time 3000h, 0.68W/m
2test condition, observe no color differnece arranged; The method of testing of peel strength is to test according to ASTM D1876 standard; The weatherability test is according to the GB/T13448-2006 standard testing, and test condition is: be incubated 1000h under the condition that 85 ℃ of temperature and humidity are 85%, observe and have or not jaundice to change.Test result is as shown in table 1.
Table 1
The above-mentioned foundation desirable embodiment of the present invention of take is enlightenment, and by above-mentioned description, the relevant staff can, in the scope that does not depart from this invention technological thought, carry out various change and modification fully.The technical scope of this invention is not limited to the content in embodiment, must determine its technical scope according to the claim scope.
Claims (8)
1. a floride-free solar cell backboard, it is characterized in that: described backboard is floride-free multi-layer co-extruded solar cell backboard, and back veneer material is divided into 3 layers, is respectively weathering layer, intermediate layer, tack coat,
The PC that weathering layer is modification, specifically, count by weight, by the PC of 100 parts, and 5～10 parts of ultraviolet light screeners, 1～10 part of ultraviolet absorber, 0.5～1 part of light stabilizer, and 1～10 part of modified poly resin forms;
The PBT that intermediate layer is modification, specifically, count by weight, by the PBT of 80～90 parts, and the uvioresistant screener of 5～10 parts, the hydrolysis-resisting agent of 1～5 part forms;
The PC that tack coat is modification, specifically, count by weight, and by the PC of 80～90 parts, the TPO copolymer of 10～20 parts forms.
2. floride-free solar cell backboard as claimed in claim 1, it is characterized in that: in described weathering layer or intermediate layer, ultraviolet light screener is selected from R706, R902.
3. floride-free solar cell backboard as claimed in claim 1, it is characterized in that: in described weathering layer, the ultraviolet absorber that ultraviolet absorber is benzophenone class, benzotriazole, the fine class of replacement propylene and triazines, be selected from UV-P, UV-O, UV-9 or UV-531.
4. floride-free solar cell backboard as claimed in claim 1 is characterized in that: the light stabilizer in described weathering layer is selected from AM-101, GW-540,744 or HPT.
5. floride-free solar cell backboard as claimed in claim 1, it is characterized in that: in described weathering layer, the modifier that the modified poly resin is TPO, be selected from HD900P, PC-33C or TRD-428P.
6. floride-free solar cell backboard as claimed in claim 1, it is characterized in that: in described intermediate layer, hydrolysis-resisting agent is polycarbodiimide.
7. floride-free solar cell backboard as claimed in claim 1, it is characterized in that: the TPO copolymer in described tack coat is selected from, ethylene ethyl acrylate copolymer, ethylene-methyl acrylate copolymer, ethylene-methacrylic acid copolymer, ethylene-acrylic acid copolymer.
8. as the preparation method of the described floride-free solar cell backboard of claim 1 to 7 any one, it is characterized in that: described method is, respectively by the batch mixing of weathering layer, intermediate layer, tack coat, add melting in double screw extruder, each melt converges in the die head of multi-layer co-extruded device by runner separately, through the die head coextrusion, through extruding, cooling, the post bake, cooling again of chill roll, prepare the floride-free backboard of multilayer.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105015121A (en) * | 2015-08-24 | 2015-11-04 | 宜兴市王者塑封有限公司 | Adhesive film integrated modified polyolefin backboard film and preparation method thereof |
| CN105428445A (en) * | 2014-08-26 | 2016-03-23 | 明冠新材料股份有限公司 | Solar photovoltaic battery assembly transparent backboard composite film and preparation method thereof |
| JP2016193600A (en) * | 2015-03-31 | 2016-11-17 | 三菱樹脂株式会社 | Laminate |
| CN107254156A (en) * | 2017-06-09 | 2017-10-17 | 江苏东昇光伏科技有限公司 | A kind of preparation method of the floride-free backboard of solar cell |
| CN109553911A (en) * | 2018-11-30 | 2019-04-02 | 苏州度辰新材料有限公司 | A kind of non-fluorine Ageing-resistant film for solar energy backboard and the solar energy backboard being made from it |
| CN109943040A (en) * | 2019-03-04 | 2019-06-28 | 常州回天新材料有限公司 | Double-layer structure transparent PET backboard and its processing method |
| CN110970516A (en) * | 2018-09-27 | 2020-04-07 | 北京铂阳顶荣光伏科技有限公司 | Flexible solar cell front plate, manufacturing method thereof and flexible solar cell |
| CN113675288A (en) * | 2021-08-16 | 2021-11-19 | 浙江中聚材料有限公司 | Photovoltaic module backboard sample piece and performance testing device thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105428445A (en) * | 2014-08-26 | 2016-03-23 | 明冠新材料股份有限公司 | Solar photovoltaic battery assembly transparent backboard composite film and preparation method thereof |
| CN105428445B (en) * | 2014-08-26 | 2017-06-06 | 明冠新材料股份有限公司 | A kind of solar photovoltaic battery component transparent back panel composite membrane and preparation method thereof |
| JP2016193600A (en) * | 2015-03-31 | 2016-11-17 | 三菱樹脂株式会社 | Laminate |
| CN105015121A (en) * | 2015-08-24 | 2015-11-04 | 宜兴市王者塑封有限公司 | Adhesive film integrated modified polyolefin backboard film and preparation method thereof |
| CN107254156A (en) * | 2017-06-09 | 2017-10-17 | 江苏东昇光伏科技有限公司 | A kind of preparation method of the floride-free backboard of solar cell |
| CN110970516A (en) * | 2018-09-27 | 2020-04-07 | 北京铂阳顶荣光伏科技有限公司 | Flexible solar cell front plate, manufacturing method thereof and flexible solar cell |
| CN109553911A (en) * | 2018-11-30 | 2019-04-02 | 苏州度辰新材料有限公司 | A kind of non-fluorine Ageing-resistant film for solar energy backboard and the solar energy backboard being made from it |
| CN109943040A (en) * | 2019-03-04 | 2019-06-28 | 常州回天新材料有限公司 | Double-layer structure transparent PET backboard and its processing method |
| CN113675288A (en) * | 2021-08-16 | 2021-11-19 | 浙江中聚材料有限公司 | Photovoltaic module backboard sample piece and performance testing device thereof |
| CN113675288B (en) * | 2021-08-16 | 2023-11-17 | 浙江中聚材料有限公司 | Photovoltaic module backboard sample piece and performance testing device thereof |
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Application publication date: 20131218 Assignee: Changzhou alpha New Material Technology Co.,Ltd. Assignor: CHANGZHOU University Contract record no.: X2023980052010 Denomination of invention: A fluorine free solar cell backplate and its preparation method Granted publication date: 20150916 License type: Common License Record date: 20231213 |