CN201985136U - High-adhesion solar cell back film - Google Patents
High-adhesion solar cell back film Download PDFInfo
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- CN201985136U CN201985136U CN 201120072518 CN201120072518U CN201985136U CN 201985136 U CN201985136 U CN 201985136U CN 201120072518 CN201120072518 CN 201120072518 CN 201120072518 U CN201120072518 U CN 201120072518U CN 201985136 U CN201985136 U CN 201985136U
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- back film
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- solar battery
- adhesion force
- battery back
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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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Abstract
The utility model discloses a high-adhesion solar cell back film which comprises a base; high-adhesion bottom liquid masking layers are coated on the upper and lower surfaces of the base; chlorotrifluoro ethylene coating layers are coated on the high-adhesion bottom liquid masking layers; and an ethylene-vinyl acetate copolymer layer is coated on the upper or lower chlorotrifluoro ethylene coating layer. The high-adhesion solar cell back film provided by the utility model has the advantage of being high in adhesion, weather resistance, chemical resistance, electric insulation ability and water repellency.
Description
Technical field
The utility model relates to solar cell, is specifically related to a kind of solar battery back film that solar cell has high adhesion force that is used for.
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 cell is wrapped up by two-layer EVA sealant.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, occur in the prior art carrying out improvement project at notacoria in a large number.For example, China Patent No. is that CN200820133536, publication number are that CN201199526, name are called a kind of solar battery back film, it is a seven-layer structure, comprise the silicon titanizing film forming layer that is laminated with in regular turn together, fluorine-based rete, silicon titanizing film forming layer, basic unit, silicon titanizing film forming layer, fluorine-based rete and silicon titanizing film forming layer, although such scheme has high-adhesion, high-weatherability, chemical resistance, high electric insulating quality and high water proofing property, but scheme needs the more number of plies on the one hand, structure is comparatively complicated, manufacture difficulty is bigger, the production cost height; On the other hand, this scheme is firm inadequately with cooperating of other solar components, and adhesive force is not enough, the phenomenon of delamination can occur.
The utility model content
The utility model is intended to overcome the deficiencies in the prior art provides a kind of solar battery back film with high adhesion force, high-weatherability, chemical resistance, high electric insulating quality and high water proofing property.
To achieve these goals, the utility model is designed a kind of high adhesion force solar battery back film, comprises basic unit, and the upper and lower surface of described basic unit respectively has been laminated with high sticking primary coat liquid layer, has been laminated with the chlorotrifluoroethylene dope layer on the sticking primary coat liquid layer of height.
As improvement: on the chlorotrifluoroethylene dope layer of upper strata or lower floor, be laminated with ethylene-vinyl acetate copolymer layer to such scheme.
As of the present utility model preferred: the thickness of the sticking primary coat liquid layer of described height is 0.01 micron to 2 microns.
As of the present utility model preferred: the sticking primary coat liquid layer of described height is an EVA maleic anhydride graft liquid layer.
As of the present utility model preferred: the thickness of described chlorotrifluoroethylene dope layer is 5 microns to 60 microns.
As of the present utility model preferred: the thickness of described ethylene-vinyl acetate copolymer layer is 20 microns to 150 microns.
As of the present utility model preferred: described basic unit is a polyethylene terephtalate layer high temperature resistant, high insulation.
As of the present utility model preferred: described groundwork thickness is 0.1 millimeter to 7.5 millimeters.
The utility model high adhesion force solar battery back film is when PET basic unit and chlorotrifluoroethylene dope layer are laminated with, add the masking liquid that has been coated with one deck high viscosity in PET basic unit, and the surface of basic unit and chlorotrifluoroethylene dope layer carried out plasma treatment, make that adhesive property of the present utility model is better, interlayer is closely knit, has improved barrier property, especially steam is had better obstruct, humidity resistance is good, and electric property and weather resistance are better.The utility model high adhesion force solar battery back film is to carry out lamination by the chlorotrifluoroethylene dope layer that is laminated with in regular turn, high sticking primary coat liquid layer, basic unit, high sticking primary coat liquid layer, chlorotrifluoroethylene dope layer and ethylene-vinyl acetate copolymer layer to obtain, its manufacture process is simple, production cost is low, and product has high adhesion force, high-weatherability, chemical resistance, high electric insulating quality and high advantages such as water proofing property.
Description of drawings
Fig. 1 is the structural representation of the new high adhesion force solar battery back film of this practicality.
Embodiment
For the ease of those skilled in the art's understanding, the utility model principle is described in further detail below in conjunction with specific embodiment and accompanying drawing.
As shown in Figure 1, design a kind of high adhesion force solar battery back film, comprise basic unit 1, the upper and lower surface of described basic unit 1 respectively has been laminated with high sticking primary coat liquid layer 2, has been laminated with chlorotrifluoroethylene dope layer 3 on the sticking primary coat liquid layer 2 of height.Surface after described basic unit 1 and 3 oven dry of chlorotrifluoroethylene dope layer is through plasma treatment.Described chlorotrifluoroethylene coating is by fluorocarbon resin, titanium dioxide, aerosil.On the chlorotrifluoroethylene dope layer 3 of upper strata or lower floor, be laminated with ethylene-vinyl acetate copolymer layer 4.
As shown in Figure 1, described basic unit 1 is a polyethylene terephtalate layer high temperature resistant, high insulation.The thickness of basic unit 1 is 0.1 millimeter to 7.5 millimeters, and preferred thickness is 100 microns to 350 microns; The sticking primary coat liquid layer 2 of described height is an EVA maleic anhydride graft liquid layer, and its thickness is 0.01 micron to 2 microns, and preferred thickness is 0.5 micron to 1 micron; The thickness of described chlorotrifluoroethylene dope layer 3 is 5 microns to 60 microns, and preferred thickness is 20 microns to 50 microns; The thickness of described ethylene-vinyl acetate copolymer layer 4 is 20 microns to 150 microns, and preferred thickness is 40 microns to 120 microns.
In addition, basic unit 1 described in the utility model also can adopt the PE material, forms the foaming layer of ultra-fine closed pore formula by ultra-fine sealing cellular type foam process, and the foam hole in the foaming layer here is an enclosed construction, and the tool foam hole is a hyperfine structure.Basic unit with this foam hole structure has holding power preferably, and in light weight, is easy to bending, can be applied in the bending-type solar panel.The thickness of described basic unit 1 is 0.1mm-7.5mm, and the wherein non-preferred thickness that foams basic unit is 0.25-0.45mm, and concrete numerical value is 0.3mm, 0.35mm, 0.28mm, 0.4mm, 0.42mm.The preferred thickness of foaming basic unit is 1mm-3mm, and concrete numerical value can be 1mm, 1.88mm, 2.5mm.
The utility model high adhesion force solar battery back film also relates to following processing technology in the process of producing:
(1), plasma treatment is carried out on PET basic unit 1 surface, carry out the high sticking primary coat liquid layer 2 of PET basic unit 1 coating again and increase adhesive force, be coated with one deck chlorotrifluoroethylene dope layer 3 after the oven dry again; The plasma treatment process that is adopted can be the plasma treatment process of comparative maturity in the prior art, also is corona treatment, and the temperature of high sticking primary coat liquid layer 2 oven dry is the 90-130 degree, through 100 degrees centigrade of heated bakings 5 seconds.
(2) the chlorotrifluoroethylene dope layer 3 that will be coated in the PET basic unit 1 is dried and Electrostatic Treatment.Bake out temperature is 100 degrees centigrade of heated bakings 20 seconds, and PET basic unit 1 and chlorotrifluoroethylene dope layer 3 are merged fully.
(3) adopt top same method to carry out PET basic unit 1 another side is coated with chlorotrifluoroethylene dope layer 3.
(4) at last the wherein one side that has been coated with chlorotrifluoroethylene dope layer 3 is laminated with ethylene-vinyl acetate copolymer layer 4, wherein Hong Gan temperature was the 80-131 degree, through 100 degrees centigrade of heated bakings 5 seconds.
The utility model product is compared with external like product, and every data are as follows:
| Characteristic | Unit | Japanese product | U.S.'s product | The utility model product |
| Surface tension | Mn/cn | 30-40 | 40 | More than 50 |
| Caking ability to EVA | N/10mm | 20-40 | 20-40 | 60-150 |
| Moisture-vapor transmission | g/m.d | 1.6 | 4.3 | 0.1 below |
By above contrast as can be seen, the utility model high adhesion force solar battery back film obviously is better than external like product on every index.
Foregoing is preferred embodiment of the present utility model only, is not to be used to limit embodiment of the present utility model, and those skilled in the art are according to design of the present utility model, and appropriate adaptation of having done or modification all should be within protection ranges of the present utility model.
Claims (8)
1. a high adhesion force solar battery back film comprises basic unit (1), it is characterized in that: the upper and lower surface of described basic unit (1) respectively has been laminated with high sticking primary coat liquid layer (2), has been laminated with chlorotrifluoroethylene dope layer (3) on the sticking primary coat liquid layer (2) of height.
2. high adhesion force solar battery back film according to claim 1 is characterized in that: be laminated with ethylene-vinyl acetate copolymer layer (4) on the chlorotrifluoroethylene dope layer (3) of upper strata or lower floor.
3. high adhesion force solar battery back film according to claim 1 and 2 is characterized in that: the thickness of the sticking primary coat liquid layer (2) of described height is 0.01 micron to 2 microns.
4. high adhesion force solar battery back film according to claim 3 is characterized in that: the sticking primary coat liquid layer (2) of described height is an EVA maleic anhydride graft liquid layer.
5. high adhesion force solar battery back film according to claim 4 is characterized in that: the thickness of described chlorotrifluoroethylene dope layer (3) is 5 microns to 60 microns.
6. high adhesion force solar battery back film according to claim 5 is characterized in that: the thickness of described ethylene-vinyl acetate copolymer layer (4) is 20 microns to 150 microns.
7. high adhesion force solar battery back film according to claim 6 is characterized in that: described basic unit (1) is polyethylene terephtalate layer high temperature resistant, high insulation.
8. high adhesion force solar battery back film according to claim 7 is characterized in that: described basic unit (1) thickness is 0.1 millimeter to 7.5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120072518 CN201985136U (en) | 2011-03-18 | 2011-03-18 | High-adhesion solar cell back film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120072518 CN201985136U (en) | 2011-03-18 | 2011-03-18 | High-adhesion solar cell back film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201985136U true CN201985136U (en) | 2011-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120072518 Expired - Fee Related CN201985136U (en) | 2011-03-18 | 2011-03-18 | High-adhesion solar cell back film |
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| CN (1) | CN201985136U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102911613A (en) * | 2011-08-02 | 2013-02-06 | 苏州中来光伏新材股份有限公司 | Coated-type high-adhesion solar cell back film and preparation method thereof |
| CN104040728A (en) * | 2011-11-18 | 2014-09-10 | 托马斯·G·胡德 | Novel solar modules, supporting layer stacks and methods of fabricating thereof |
-
2011
- 2011-03-18 CN CN 201120072518 patent/CN201985136U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102911613A (en) * | 2011-08-02 | 2013-02-06 | 苏州中来光伏新材股份有限公司 | Coated-type high-adhesion solar cell back film and preparation method thereof |
| CN104040728A (en) * | 2011-11-18 | 2014-09-10 | 托马斯·G·胡德 | Novel solar modules, supporting layer stacks and methods of fabricating thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 516000 Guangdong province Huizhou City Zhongkai Chenjiang town Dongsheng Village Road District Patentee after: HUIZHOU SINPO NEW MATERIAL Co.,Ltd. Address before: 516000 Guangdong province Huizhou City Zhongkai Chenjiang town Dongsheng Village Road District Patentee before: HUIZHOU SHENGPA PLASTIC FILM Co.,Ltd. |
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| CP03 | Change of name, title or address |
Address after: Chen town 516000 Guangdong city of Huizhou province Chen Village Baiyun road Zhongkai high tech Zone Patentee after: GUANGDONG SINPO NEW MATERIALS CO.,LTD. Address before: 516000 Guangdong province Huizhou City Zhongkai Chenjiang town Dongsheng Village Road District Patentee before: HUIZHOU SINPO NEW MATERIAL Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20190318 |