CN202150470U - High-barrier hydrolysis resistance solar cell back sheet - Google Patents
High-barrier hydrolysis resistance solar cell back sheet Download PDFInfo
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- CN202150470U CN202150470U CN 201120278161 CN201120278161U CN202150470U CN 202150470 U CN202150470 U CN 202150470U CN 201120278161 CN201120278161 CN 201120278161 CN 201120278161 U CN201120278161 U CN 201120278161U CN 202150470 U CN202150470 U CN 202150470U
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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
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- 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
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Abstract
A high-barrier hydrolysis resistance solar cell back sheet comprises a substrate, an EVA glue film, a high-molecular bonding agent layer, an aluminium foil layer, a high-molecular bonding agent layer, a PE\PEN layer, a silicon-titanium film forming layer, a fluorine-containing layer, and a fluorine-siloxane film forming layer. The EVA glue film is arranged on the inner surface of the substrate. The high-molecular bonding agent layer, the aluminium foil layer, the high-molecular bonding agent layer, the PE\PEN layer, the silicon-titanium film forming layer, the fluorine-containing layer and the fluorine-siloxane film forming layer are coated sequentially on the outer surface of the substrate. According to the utility model, the PEN layer and the aluminium foil layer are arranged between the fluorine-containing layer and the substrate, and the EVA glue film is disposed on the inner surface of the substrate to form a base material, so that the high-barrier hydrolysis resistance solar cell back sheet exhibits a better vapor barrier effect, a fine moisture-proof performance, and a better electrical performance and weatherability. In addition, the high-barrier hydrolysis resistance solar cell back sheet exhibits excellent bonding intensity together with other packaging materials (silica gel and the like).
Description
Technical field:
The utility model relates to a kind of solar cell notacoria, relates in particular to a kind of high-barrier hydrolysis solar cell notacoria.
Background technology:
Solar panel is a laminated construction normally, generally is by several kinds of compound the processing of macromolecular material, but on the solar battery back film coat side that this technology is processed waveform is arranged, and cause being coated with interlayer and do not compact, the device durability is not high.And also need after notacoria is accomplished to encapsulate with the EVA glued membrane again, increased the price operation of solar module, sealing property is not high.Was that April 6, publication number in 2011 are the application for a patent for invention of CN102005491A like one Chinese patent application number for CN201010270646.3 number, open day; High-fluoride mixcrystal coating solar-energy photovoltaic cell back film and manufacturing approach thereof are disclosed; This notacoria comprises the seven-layer structure of first basic unit, the first high fluorine synthetic coating, second basic unit, pet layer, the 3rd basic unit, the second high fluorine synthetic coating and the 4th basic unit that set gradually from top to bottom; Apply between first basic unit's lower surface and the second basic unit's upper surface the first high fluorine synthetic coating is set; Apply between the 3rd basic unit's lower surface and the 4th basic unit's upper surface the second high fluorine synthetic coating is set; Apply between the upper surface of the lower surface of second basic unit and the 3rd basic unit pet layer is set, add respectively in the described first high fluorine synthetic coating and the second high fluorine synthetic coating with the nanometer silicon carbide of arbitrary proportion mixing and the mixture of nano aluminum nitride.Such scheme is processed the solar PV high-fluorine mixcrystal coating back film of 7 layers of structure through making high-accuracy non-ripple paint-on technique, and using plasma titanium silicide nano treatment technology is handled, and makes each laminar surface hydrophiling, improves the adhesive force and the caking property of each interlayer.But because fluorine material self character, it exists surface energy high, surperficial hydrophobic, and adhesive property is poor.The adhesive property of this backboard and EVA has reduced, and makes the bonding processing technology of backboard and EVA become complicated.
The utility model content:
The utility model technical problem to be solved is to overcome above-mentioned existing performance deficiency, and a kind of solar cell notacoria with high-weatherability, corrosion resistance, good water vapor rejection performance is provided.
The solar cell notacoria of a kind of high-barrier hydrolysis that provides according to the utility model, the polymeric adhesive layer, aluminium foil layer, polymeric adhesive layer, PEN (PEN) layer, silicon titanizing film forming layer, fluorine-containing coat and the fluorosilicone that comprise basic unit, be positioned at EVA (ethylene-vinyl acetate copolymer) adhesive film of said base layer interior surface, are laminated with in said base layer exterior surface successively change into rete.
A kind of high-barrier hydrolysis solar cell notacoria that provides according to the utility model also has following attached technical characterictic:
Said basic unit is PET (PETG) basic unit.
Said basic unit is the foaming layer of the ultra-fine closed pore formula of PE (polyethylene).
The thickness of said basic unit is 0.1 millimeter-10 millimeters.
0.01 millimeter-0.1 millimeter of the thickness of said EVA adhesive film.
The thickness of said polymeric adhesive layer is 0.005 millimeter-0.01 millimeter.
The thickness of said aluminium foil layer is 0.015 millimeter-0.018 millimeter.
The thickness of said PEN layer is 0.012 millimeter-0.05 millimeter.
The thickness that said fluorosilicone changes into rete and silicon titanizing film forming layer is 0.01 micron-5 microns.
The outer surface of said fluorine-containing coat forms said fluorosilicone through the processing of plasma silicon fluoride and changes into rete.
The outer surface of the inner surface of said fluorine-containing coat or PEN layer is handled through plasma silicon titanizing and is formed said silicon titanizing film forming layer.
Said fluorine-containing coat is tetrafluoroethene base membrane layer or CTFE base membrane layer.
The thickness of said fluorine-containing coat is 5 microns-200 microns.
A kind of high-barrier hydrolysis solar cell notacoria that provides according to the utility model compared with prior art has following advantage: at first; The utility model through at the outer surface of basic unit with the bonding aluminium foil layer of polymeric adhesive layer, and adopt the bonding PEN layer of polymeric adhesive layer (PE/PEN) layer equally at the outer surface of aluminium foil layer; Secondly; Between PEN layer (PE/PEN) layer and fluorine-containing coat, silicon titanizing film forming layer is set; At the fluorine-containing coat outer surface fluorosilicone is set simultaneously and changes into rete formation base material, and the EVA adhesive film is set, make the barrier property of the utility model improve greatly at the inner surface of basic unit; Especially steam is had better obstruct, the wet and heat ageing resistant performance is better.
Description of drawings:
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Embodiment:
Referring to Fig. 1; A kind of high-barrier hydrolysis solar cell notacoria according to the utility model provides, the polymeric adhesive layer 3, aluminium foil layer 4, polymeric adhesive layer 3, PEN layer 5, silicon titanizing film forming layer 6, fluorine-containing coat 7 and the fluorosilicone that comprise basic unit 1, be positioned at the EVA adhesive film 2 of said basic unit 1 inner surface, are laminated with at said basic unit 1 outer surface successively change into rete 8.The utility model is provided with aluminium foil layer 4 and PEN layer 5 between said basic unit 1 inner surface and fluorine-containing coat 7, the outer surface in said basic unit 1 is provided with EVA adhesive film 2 simultaneously.Barrier is better in use to make the utility model, and whole humidity resistance, hydrolysis ageing properties and weather resistance are better; Especially steam is had better obstruct, have high-adhesion simultaneously and be difficult for the characteristic of layering.
In the foregoing description that the utility model provides, the thickness that said fluorosilicone changes into rete 8 is 0.01 micron to 5 microns, and preferred thickness is 0.1 micron to 2 microns.Concrete numerical value can be according to 0.05 micron, 0.1 micron, 0.3 micron, 0.8 micron, 1.2 microns, 1.8 microns, 2 microns, 2.5 microns, 3 microns of thickness selections of basic unit and fluorine-containing coat or the like.Here the selection of thickness will be satisfied the demand that bonds between each layer, will improve the overall performance of notacoria simultaneously.
Said basic unit 1 in the utility model can be PET basic unit, and wherein PET is a PETG.
Basic unit 1 in the utility model also can adopt PE, forms the foaming layer of ultra-fine closed pore formula through ultra-fine closed pore formula foam process, and the foam hole in the foaming layer here is an enclosed construction, and foam hole is a hyperfine structure.The basic unit of this structure has holding power preferably, and in light weight, is easy to bending, can be applied in the bending-type solar panel.
In the above-mentioned basic unit 1 that the utility model provides, the thickness of said basic unit 1 is 0.1mm-10mm, and the wherein non-preferred thickness that foams basic unit is 0.2-0.3mm, and concrete numerical value is 0.2mm, 0.22mm, 0.25mm, 0.28mm, 0.3mm.The thickness of foaming basic unit is 1-3mm, and concrete numerical value is 1mm, 2mm, 3mm.
In the foregoing description that the utility model provides, also can contain the mixture of the arbitrary proportion of PE (polyethylene) and PEN (PEN) in the said PEN layer 4.Therefore, in the utility model, said PEN layer 5 also can be called as PE/PEN layer 5.
In the foregoing description that the utility model provides, said fluorine-containing coat 7 is the tetrafluoroethene base membrane layer, and this rete can be selected JOLYWOOD FFC film for use, also can be tetrafluoroethene (TFE) homopolymers rete.
The fluorine-containing coat 7 of the utility model also can be the formed rete of the terpolymer of tetrafluoroethene, hexafluoropropylene and vinylidene, i.e. THV rete.
The fluorine-containing coat 7 of the utility model can also be the CTFE base membrane layer.
In the foregoing description that the utility model provides, it is one deck film forming layers that form through the processing of plasma fluorosilicone through on said fluorine-containing coat 7 surfaces that said fluorosilicone changes into film 8, and promptly alleged fluorosilicone changes into rete 8 in the utility model.
In the foregoing description that the utility model provides; Said silicon titanizing film forming layer 6 is through handling one deck film forming layer that forms at the outer surface of said fluorine-containing coat 7 inner surfaces or PE/PEN layer 5 through plasma silicon titanizing, i.e. alleged silicon titanizing film forming layer 6 in the utility model.Here the concrete processing technology that adopts is:
(1) to the two sides spraying or the roller coating polymeric adhesive of aluminium foil layer 4, makes all to form polymeric adhesive layer 3 on aluminium foil layer 4 two sides;
(2) wherein be laminated with PE/PEN layer 5 on a polymeric adhesive layer 3 on the aluminium foil layer 4;
(3) on the another side polymeric adhesive layer 3 on the aluminium foil layer 4, be laminated with basic unit 1, form base material;
(4) plasma treatment is carried out on two surfaces of fluorine-containing coat 7, activation fluorine-containing coat 7 surfaces;
(5) two surfaces to fluorine-containing coat after the activation 7 spray respectively or roller coating fluosilicic oxyalkane compound and silicon-titanium compound; Through 20-200 degree centigrade of heating 1-600 second, make that on two surfaces of fluorine-containing coat, forming fluorosilicone respectively changes into rete 8 and silicon titanizing film forming layer 6;
(6) upper surface with the PE/PEN layer 5 of base material is heated to the silicon titanizing film forming layer 6 that is laminated with fluorine-containing coat 7 after 50-200 degree centigrade;
(7) lower surface in basic unit 1 adopts the casting technique curtain coating to go out EVA adhesive film 2.
Through the processing of above-mentioned processing technology completion notacoria, this notacoria can be used as sale of finished goods, and is used for solar panel, and is bonding with other assemblies in the solar panel.
Perhaps, this nine layers of structure also can adopt following processing technology to produce:
(1) to the two sides spraying or the roller coating polymeric adhesive of aluminium foil layer 4, makes all to form polymeric adhesive layer 3 on aluminium foil layer 4 two sides;
(2) wherein be laminated with PE/PEN layer 5 on a polymeric adhesive layer 3 on the aluminium foil layer 4;
(3) on the another side polymeric adhesive layer 3 on the aluminium foil layer 4, be laminated with basic unit 1, form base material;
(4) upper surface to fluorine-containing coat 7 carries out plasma treatment, the upper surface of activation fluorine-containing coat 7;
(5),, make that on the upper surface of fluorine-containing coat 7, forming fluorosilicone changes into rete 8 through 20-200 degree centigrade of heating 1-600 second to spraying of the upper surface of fluorine-containing coat after the activation 7 or roller coating fluosilicic oxyalkane compound;
(6) upper surface to PE/PEN layer 5 on the base material carries out plasma treatment, activation PE/PEN layer 5 upper surface;
(7),, make on the upper surface of PE/PEN layer 5, to form silicon titanizing film forming layer 6 through 20-200 degree centigrade of heating 1-600 second to spraying of the upper surface of PE/PEN layer 5 after the activation or roller coating silicon-titanium compound;
(8) lower surface with fluorine-containing coat 7 is heated to the silicon titanizing film forming layer 6 that is laminated with after 50-200 degree centigrade on the PE/PEN layer 5;
(9) lower surface in basic unit 1 adopts the casting technique curtain coating to go out EVA adhesive film 2.
The fluosilicic oxyalkane compound that in above-mentioned processing technology, adopts and the molecular formula of silicon-titanium compound are respectively: R-F-Si (OR) 3 and SiOx, TiO
2, these two kinds of compounds all can have been bought finished product from market.
The product of the utility model is compared with external like product, and each association is following:
| Characteristic | Unit | Japanese product | U.S.'s product | The utility model |
| Surface tension | mN/cm | 30-40 | 40 | More than 75 |
| Caking ability to EVA | N/10mm | 20－40 | 20－40 | 50-100 |
| Moisture-vapor transmission | g/m 2.d | 1.6 | 4.3 | 0.1 below |
Can find out that through above contrast the utility model obviously is superior to external like product on each item index.
Claims (13)
1. high-barrier hydrolysis solar cell notacoria, it is characterized in that: the polymeric adhesive layer, aluminium foil layer, polymeric adhesive layer, PEN layer, silicon titanizing film forming layer, fluorine-containing coat and the fluorosilicone that comprise basic unit, be positioned at the EVA adhesive film of said base layer interior surface, are laminated with in said base layer exterior surface successively change into rete.
2. a kind of high-barrier hydrolysis solar cell notacoria as claimed in claim 1, it is characterized in that: said basic unit is a PET basic unit.
3. a kind of high-barrier hydrolysis solar cell notacoria as claimed in claim 1 is characterized in that: said basic unit is the foaming layer of the ultra-fine closed pore formula of PE.
4. a kind of high-barrier hydrolysis solar cell notacoria as claimed in claim 1 is characterized in that: the thickness of said basic unit is 0.1 millimeter-10 millimeters.
5. a kind of high-barrier hydrolysis solar cell notacoria as claimed in claim 1 is characterized in that: the thickness of said EVA adhesive film is 0.01 millimeter-0.1 millimeter.
6. a kind of high-barrier hydrolysis solar cell notacoria as claimed in claim 1 is characterized in that: the thickness of said polymeric adhesive layer is 0.005 millimeter-0.01 millimeter.
7. a kind of high-barrier hydrolysis solar cell notacoria as claimed in claim 1 is characterized in that: the thickness of said aluminium foil layer is 0.015 millimeter-0.018 millimeter.
8. a kind of high-barrier hydrolysis solar cell notacoria as claimed in claim 1 is characterized in that: the thickness of said PEN layer is 0.012 millimeter-0.05 millimeter.
9. a kind of high-barrier hydrolysis solar cell notacoria as claimed in claim 1 is characterized in that: the thickness that said fluorosilicone changes into rete and silicon titanizing film forming layer is 0.01 micron-5 microns.
10. a kind of high-barrier hydrolysis solar cell notacoria as claimed in claim 1, it is characterized in that: the outer surface of said fluorine-containing coat forms said fluorosilicone through the processing of plasma silicon fluoride and changes into rete.
11. a kind of high-barrier hydrolysis solar cell notacoria as claimed in claim 1 is characterized in that: the outer surface of the inner surface of said fluorine-containing coat or PEN layer is handled through plasma silicon titanizing and is formed said silicon titanizing film forming layer.
12. a kind of high-barrier hydrolysis solar cell notacoria as claimed in claim 1, it is characterized in that: said fluorine-containing coat is tetrafluoroethene base membrane layer or CTFE base membrane layer.
13. a kind of high-barrier hydrolysis solar cell notacoria as claimed in claim 1 is characterized in that: the thickness of said fluorine-containing coat is 5 microns-200 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120278161 CN202150470U (en) | 2011-08-02 | 2011-08-02 | High-barrier hydrolysis resistance solar cell back sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120278161 CN202150470U (en) | 2011-08-02 | 2011-08-02 | High-barrier hydrolysis resistance solar cell back sheet |
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| Publication Number | Publication Date |
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| CN202150470U true CN202150470U (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201120278161 Expired - Lifetime CN202150470U (en) | 2011-08-02 | 2011-08-02 | High-barrier hydrolysis resistance solar cell back sheet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129160A (en) * | 2016-08-27 | 2016-11-16 | 无锡中洁能源技术有限公司 | A kind of band coating solar energy backboard |
-
2011
- 2011-08-02 CN CN 201120278161 patent/CN202150470U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129160A (en) * | 2016-08-27 | 2016-11-16 | 无锡中洁能源技术有限公司 | A kind of band coating solar energy backboard |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120222 |
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| CX01 | Expiry of patent term |