CN201199524Y - Backing film for high cohesiveness solar battery - Google Patents
Backing film for high cohesiveness solar battery Download PDFInfo
- Publication number
- CN201199524Y CN201199524Y CN 200820133534 CN200820133534U CN201199524Y CN 201199524 Y CN201199524 Y CN 201199524Y CN 200820133534 CN200820133534 CN 200820133534 CN 200820133534 U CN200820133534 U CN 200820133534U CN 201199524 Y CN201199524 Y CN 201199524Y
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- CN
- China
- Prior art keywords
- rete
- fluorosilicone
- solar battery
- basic unit
- back film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
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- Laminated Bodies (AREA)
- Photovoltaic Devices (AREA)
Abstract
The utility model provides a solar cell notacoria with high cohesiveness, which is a five-layer structure and comprises a fluorosilicone forming film layer, a substrate, a fluorosilicone forming film layer, a fluorine radical film layer and a fluorosilicone forming film layer which are stacked together sequentially. The solar cell notacoria has high cohesiveness, high weather fastness, chemical resistance, high electric insulation property and high water resistance.
Description
Technical field:
The utility model relates to a kind of assembly that is used for solar cell, relates in particular to a kind of solar battery back film with high-adhesion.
Background technology:
Solar panel is a laminated construction normally, mainly comprises surface layer of glass, EVA sealant, solar battery sheet, EVA sealant and solar battery back film, and wherein solar battery sheet is by two-layer EVA sealant sealed envelope.The main effect of solar battery back film is the overall mechanical strength that improves solar panel, can prevent that in addition water vapor permeable from sealant, influencing the useful life of battery sheet.In order to improve the overall performance of notacoria, occurred in the prior art carrying out improved plan at notacoria in a large number.For example, Chinese patent application number was that May 14, publication number in 2008 are the application for a patent for invention of CN101177514 for CN200710185202.8 number, open day, a kind of solar cell backboard and preparation method thereof is disclosed, this backboard comprises base material and fluoropolymer layer, and each component of fluoropolymer layer is counted by weight: 25～45 parts of fluorine resins; 1.5～3 parts of modified resin; 0.5～3 part of polymer filler; 0.1～1 part of inorganic filler; 50～70 parts of solvents.The production cost of such scheme is low, function admirable, and its peel strength height, block-water performance is good, good weatherability.Though the fluorine material can improve the overall performance of backboard, because fluorine material self character, there is the surface energy height in it, surperficial hydrophobic, and adhesive property is poor.Make the adhesive property of this backboard and EVA reduce, it is complicated that the bonding processing technology of backboard and EVA becomes.
The utility model content:
Technical problem to be solved in the utility model is to overcome the deficiency of above-mentioned prior art, provides a kind of and has high-adhesion and have high-weatherability, chemical resistance, high electrical insulation properties, the solar battery back film of high water proofing property.
According to a kind of high-adhesion solar battery back film that the utility model provides, comprise that the fluorosilicone that is laminated with successively together changes into rete, basic unit, fluorosilicone and changes into rete, fluorine-based rete and fluorosilicone and change into rete.
A kind of high-adhesion solar battery back film that provides according to the utility model also has following attached technical characterictic:
The thickness that described fluorosilicone changes into rete is 0.01 micron-5 microns.
The thickness that described fluorosilicone changes into rete is 0.1 micron-2 microns.
The surface of described basic unit and described fluorine-based rete forms described fluorosilicone through the processing of plasma fluorosilicone and changes into rete.
Described basic unit is a PET basic unit.
Described basic unit is the foaming layer of the ultra-fine closed pore formula of PE.
The thickness of described basic unit is 0.1 millimeter-10 millimeters.
Described fluorine-based rete is tetrafluoroethene base membrane layer or chlorotrifluoroethylene base membrane layer.
The thickness of described fluorine-based rete is 5 microns-200 microns.
A kind of high-adhesion solar battery back film that provides according to the utility model compared with prior art has following advantage: the utility model is provided with fluorosilicone on the surface of basic unit and fluorine-based rete and changes into film, and between basic unit and fluorine-based rete, fluorosilicone is set and changes into film, make that adhesive property of the present utility model is better, interlayer is closely knit, improved barrier property, especially to the better obstruct of having of steam, humidity resistance is good, and electric property and weather resistance are better.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
Referring to Fig. 1, a kind of high-adhesion solar battery back film that provides according to the utility model, it is a five-layer structure, comprises that the fluorosilicone that is laminated with successively together changes into rete 1, basic unit 3, fluorosilicone and changes into rete 1, fluorine-based rete 2 and fluorosilicone and change into rete 1.The utility model is provided with fluorosilicone at described basic unit 3 and described fluorine-based rete 2 outer surfaces and changes into rete 1, makes notacoria of the present utility model be easy to and other solar module bonding.Simultaneously, also be provided with fluorosilicone and change into rete 1 between basic unit 3 and fluorine-based rete 2, make interlaminar bonding more closely knit, barrier is better, and whole humidity resistance, electric property and weather resistance are better.
In the foregoing description that the utility model provides, the thickness that described fluorosilicone changes into rete 1 is 0.01 micron to 5 microns, and preferred thickness is 0.1 micron to 2 microns.Concrete numerical value can be selected 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 or the like according to the thickness of basic unit 3 and fluorine-based rete 2.Here the selection of thickness will be satisfied the demand that bonds between each layer, will improve the overall performance of notacoria simultaneously.
Described basic unit 3 in the utility model can be PET basic unit, and wherein PET is a polyphenyl dioctyl phthalate glycol ester.
Basic unit 3 in the utility model also can adopt PE, forms the foaming layer of ultra-fine closed pore formula by 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 3 that the utility model provides, the thickness of described basic unit 3 is 0.1mm-10mm, and the wherein non-preferred thickness that foams basic unit is 0.2-0.3mm, and concrete numerical value can be 0.2mm, 0.22mm, 0.25mm, 0.28mm, 0.3mm.The thickness of foaming basic unit is 1-3mm, and concrete numerical value can be 1mm, 2mm, 3mm.
In the foregoing description that the utility model provides, described fluorine-based rete 2 is the tetrafluoroethene base membrane layer, and this rete can be selected JOLYWOOD FFC film for use, also can be tetrafluoroethene (TFE) homopolymers rete.
Fluorine-based rete 2 of the present utility model can also be the chlorotrifluoroethylene base membrane layer.
In the foregoing description that the utility model provides, it is to form one deck film forming layer by the surface in described fluorine-based rete 2 and described basic unit 3 through the processing of plasma fluorosilicone that described fluorosilicone changes into film 1, and promptly the alleged fluorosilicone of the utility model changes into rete 1.Here the concrete processing technology of Cai Yonging is:
(1), plasma treatment is carried out on the surface of basic unit 3 and fluorine-based rete 2, activation basic unit 3 and fluorine-based rete 2 surfaces; The plasma treatment process that is adopted can be the plasma treatment process of comparative maturity in the prior art.
(2), to activating the two sides spraying fluosilicic oxyalkane compound of back outer surface of basic unit 3 and fluorine-based rete 2, through 100 degrees centigrade of heated bakings 20 seconds, make the two sides of the outer surface of basic unit 3 and fluorine-based rete 2 form fluorosilicone and change into rete 1.
(3), basic unit 3 being heated to after 90 degrees centigrade single face is laminated with and contains the fluorine-based rete 2 that fluorosilicone changes into rete 1.
The molecular formula of the fluosilicic oxyalkane compound that adopts in above-mentioned processing technology is: R
f-Si (OR)
3, this compound can have been bought finished product from the market.
Product of the present utility model is compared with external like product, and every data are as follows:
| Characteristic | Unit | Japanese product | U.S.'s product | The present invention |
| Surface tension | mN/cm | 30-40 | 40 | More than 45 |
| 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 by above contrast the utility model obviously is better than external on indices Like product.
Claims (9)
1. high-adhesion solar battery back film is characterized in that: it is five-layer structure, comprises that the fluorosilicone that is laminated with successively together changes into rete, basic unit, fluorosilicone and changes into rete, fluorine-based rete and fluorosilicone and change into rete.
2. a kind of high-adhesion solar battery back film as claimed in claim 1 is characterized in that: the thickness that described fluorosilicone changes into rete is 0.01 micron-5 microns.
3. a kind of high-adhesion solar battery back film as claimed in claim 1 is characterized in that: the thickness that described fluorosilicone changes into rete is 0.1 micron-2 microns.
4. a kind of high-adhesion solar battery back film as claimed in claim 1 is characterized in that: the surface of described basic unit and described fluorine-based rete forms described fluorosilicone through the processing of plasma fluorosilicone and changes into rete.
5. a kind of high-adhesion solar battery back film as claimed in claim 1 is characterized in that: described basic unit is a PET basic unit.
6. a kind of high-adhesion solar battery back film as claimed in claim 1 is characterized in that: described basic unit is the foaming layer of the ultra-fine closed pore formula of PE.
7. a kind of high-adhesion solar battery back film as claimed in claim 1 is characterized in that: the thickness of described basic unit is 0.1 millimeter-10 millimeters.
8. a kind of high-adhesion solar battery back film as claimed in claim 1 is characterized in that: described fluorine-based rete is tetrafluoroethene base membrane layer or chlorotrifluoroethylene base membrane layer.
9. a kind of high-adhesion solar battery back film as claimed in claim 1 is characterized in that: the thickness of described fluorine-based rete is 5 microns-200 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820133534 CN201199524Y (en) | 2008-08-29 | 2008-08-29 | Backing film for high cohesiveness solar battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820133534 CN201199524Y (en) | 2008-08-29 | 2008-08-29 | Backing film for high cohesiveness solar battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201199524Y true CN201199524Y (en) | 2009-02-25 |
Family
ID=40450676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820133534 Expired - Lifetime CN201199524Y (en) | 2008-08-29 | 2008-08-29 | Backing film for high cohesiveness solar battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201199524Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102166868A (en) * | 2009-12-31 | 2011-08-31 | 杜邦太阳能有限公司 | Backsheet for a solar module |
| CN102754222A (en) * | 2010-02-23 | 2012-10-24 | 富士胶片株式会社 | Back sheet for solar cell, method for producing the same, and solar cell module |
| CN102082192B (en) * | 2009-11-27 | 2014-12-03 | 比亚迪股份有限公司 | Solar battery backing film, preparation method thereof and solar battery |
| CN104985895A (en) * | 2015-06-05 | 2015-10-21 | 苏州佳亿达电器有限公司 | Long-life back film for solar photovoltaic panel |
| CN105720125A (en) * | 2015-11-16 | 2016-06-29 | 中天光伏材料有限公司 | Functional multilayer composite photovoltaic backboard |
-
2008
- 2008-08-29 CN CN 200820133534 patent/CN201199524Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082192B (en) * | 2009-11-27 | 2014-12-03 | 比亚迪股份有限公司 | Solar battery backing film, preparation method thereof and solar battery |
| CN102166868A (en) * | 2009-12-31 | 2011-08-31 | 杜邦太阳能有限公司 | Backsheet for a solar module |
| CN102754222A (en) * | 2010-02-23 | 2012-10-24 | 富士胶片株式会社 | Back sheet for solar cell, method for producing the same, and solar cell module |
| CN104985895A (en) * | 2015-06-05 | 2015-10-21 | 苏州佳亿达电器有限公司 | Long-life back film for solar photovoltaic panel |
| CN104985895B (en) * | 2015-06-05 | 2017-03-08 | 苏州佳亿达电器有限公司 | A kind of high life notacoria for solar opto-electronic board |
| CN105720125A (en) * | 2015-11-16 | 2016-06-29 | 中天光伏材料有限公司 | Functional multilayer composite photovoltaic backboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SUZHOU JOLYWOOD SUNWATT CO., LTD. Free format text: FORMER NAME: JOLYWOOD (SUZHOU) SOLAR MATERIAL TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 215542 Chang Kun Industrial Park, 32, Sha Bang Town, Jiangsu, Qingnian Road, Changshou City Patentee after: Jolywood (Suzhou ) Sunwatt Co., Ltd. Address before: 215500 Jiangsu province Changshou City Yushan High-tech Industrial Park Jianye Road No. 3 Patentee before: Jolywood (Suzhou) Solar Material Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090225 |