CN201590418U - High barrier UV aging resistant solar cell back film - Google Patents
High barrier UV aging resistant solar cell back film Download PDFInfo
- Publication number
- CN201590418U CN201590418U CN2009202202341U CN200920220234U CN201590418U CN 201590418 U CN201590418 U CN 201590418U CN 2009202202341 U CN2009202202341 U CN 2009202202341U CN 200920220234 U CN200920220234 U CN 200920220234U CN 201590418 U CN201590418 U CN 201590418U
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- solar cell
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- aging resistance
- microns
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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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- 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
A high barrier UV aging resistant solar cell back film comprises a thin substrate and surface layers with anti-aging and protection functions and on both sides of the film substrate; and an aluminum film layer is arranged on the outer surface of the substrate. As the aluminum film layer is compounded with the substrate without adhesive, a backplane has high barrier performance, better barrier effect especially on water steam, good moisture proof performance and better weather 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 high-barrier ultraviolet aging resistance solar cell notacoria.
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, Japanese patent application publication No. is the patent of JP2008085294 (A), open day is on April 10th, 2008, a kind of solar battery back film and preparation method thereof is disclosed, this notacoria comprises the resin molding on top layer, the resin molding at one deck Obstruct membrane and one deck back side, the main component of surface tree adipose membrane is a polyethylene.Between top layer resin mold and Obstruct membrane, also has one deck dielectric film.Aluminium foil layer or organic oxidation layer are as barrier layer, and its back side resin mold main component is PEN and PET.The production cost of such scheme is low, function admirable, and its peel strength height, block-water performance is good, good weatherability.But compound need the bonding in the such scheme between aluminium foil and other retes by glue, but adhesion strength is not ideal enough, and glue is aging at first in long-term use, causes the layering of notacoria itself.
The utility model content:
Technical problem to be solved in the utility model is to overcome the deficiency of above-mentioned prior art, and a kind of have high water proofing property, uviolresistance, high-adhesion solar battery back film are provided.
A kind of high-barrier ultraviolet aging resistance solar cell notacoria that provides according to the utility model; the top layer that the main body that comprises four-layer structure, described main body comprise base material, are positioned at the aluminum membranous layer of described base material outer surface and are positioned at described base material inner surface and described aluminum membranous layer outer surface with ageing-resistant and defencive function.
A kind of high-barrier ultraviolet aging resistance solar cell notacoria that provides according to the utility model also has following attached technical characterictic:
Described aluminum membranous layer is the rete that nanoscale aluminium powder and mixed with resin evenly apply formation.
The thickness of described base material outer surface aluminum membranous layer is 1nm～30nm.
The thickness of described base material outer surface aluminum membranous layer is 1nm～15nm.
The thickness of described base material is 0.05mm～0.35mm.
The thickness of described base material is 0.15mm～0.2mm.
The fluorosilicone that the surface, inboard top layer of described main body has through irradiation or plasma fluorine siliconization processing formation changes into rete.
The inboard top layer of described main body is the acrylate resin layer with UV absorption function.
A kind of high-barrier ultraviolet aging resistance solar cell notacoria that provides according to the utility model compared with prior art has following advantage: at first, base material and aluminum membranous layer are directly compound, not only have good block-water performance, have excellent adhesive force simultaneously; Secondly, the top layer be formed with the siliconization film forming layer, make it have higher caking property, all have good compatibility with different EVA and silica gel.
Description of drawings:
Fig. 1 is the structural representation of a kind of embodiment of the present utility model.
Embodiment:
As shown in Figure 1; a kind of high-barrier ultraviolet aging resistance solar cell notacoria that provides according to the utility model; the main body that comprises four-layer structure, described main body comprise base material 1, are positioned at the aluminum membranous layer 3 of described base material 1 outer surface and are positioned at described base material 1 inner surface and the top layer with ageing-resistant and defencive function 2 of described aluminum membranous layer 3 outer surfaces.Described aluminum membranous layer 3 is the surfaces that are coated in base material 1.Aluminum membranous layer 3 of the present utility model evenly applies the rete of formation for nanoscale aluminium powder and mixed with resin.The content of nano aluminum is 10%-90% by weight, preferred 40%-80%.Be uniformly coated on the base material 1 by the resin that will be mixed with nano aluminum, make to the utlity model has very outstanding barrier, whole humidity resistance and weather resistance.
In the foregoing description that the utility model provides, the thickness of described base material 1 is 0.05mm～0.35mm, wherein, is preferably 0.15mm～0.2mm.Concrete numerical value is 0.05mm, 0.10mm, 0.15mm, 0.20mm, 0.25mm.Select the base material 1 of above-mentioned thickness can make backboard have higher intensity, simultaneously, also be beneficial to the raising of processing and overall performance.
The thickness of described aluminum membranous layer 3 is at 1nm-30nm, preferred 1nm～15nm.Specifically can select 1nm, 5nm, 10nm, 12nm, 15nm, 18nm, 21nm, 28nm for use.Select the aluminum membranous layer 3 of above-mentioned thickness to have effect preferably, can satisfy demand of the present utility model, have high cost performance.
Resin in the aluminum membranous layer 3 of the present utility model should be to have high dispersion and low-molecular-weight resin, has high adhesion force simultaneously, and as the hydroxy acrylic acid tree, its content is: 10～90%, preferred 20～60%.
Described top layer 2 is top layers that one deck has protective effect, and described top layer is tetrafluoro base resin or the acrylate copolymer coating with ultraviolet radiation absorption function.Tetrafluoro base resin is the fluorine rete, and this film can be selected the FFC coating of JOLYWOOD for use, also can be polytetrafluoroethylene (PTFE) homopolymers rete, and the thickness of this rete is 10 microns～200 microns, preferred 20 microns～100 microns.Concrete numerical value can be selected 10 microns, 20 microns, 30 microns, 40 microns, 50 microns, 60 microns, 70 microns, 80 microns, 100 microns, 120 microns, 150 microns, 180 microns, 200 microns for use.Protective film also can be the protective layer with absorption action of ultraviolet radiation of the high printing opacity of high rigidity simultaneously; promptly adopt the acrylate copolymer coating; as be added with the acrylic acid polymer resin of UV stabilizer and absorbent; described UV stabilizer is the hindered amines polymer, and described ultraviolet absorber is nanoscale SiO
2, TiO
XOne or more mixture, the thickness of this rete is 1 micron～10 microns, preferred 3 microns～5 microns.Concrete numerical value can be selected 1 micron, 3 microns, 4 microns, 5 microns, 6 microns, 8 microns, 10 microns for use.Select above-mentioned numerical value for use, can fully satisfy the defencive function and the ageing-resistant performance on top layer.
Resin in the aluminum membranous layer 3 of the present utility model is to have high dispersion and low-molecular-weight resin, has high adhesion force simultaneously, and as Hydroxylated acrylic resin, its content is by weight percentage: 10～90%, preferred 20～60%.Concrete numerical value can select 10%, 20%, 40%, 50%, 60%, 70%, 90% for use.The selection of this resin choice and aluminium powder is suitable for mutually.The aluminum membranous layer 3 that adopts resin and aluminium powder to mix not only has higher adhesive force, can closely be combined with each other with basic unit 1.And have a very outstanding barrier, whole humidity resistance and weather resistance.
In order to improve the adhesion strength of adhesives such as notacoria and EVA, silica gel, the surface on inboard top layer 2 of the present utility model forms the siliconization film forming layer 4 through irradiation or plasma grafting modification.Described siliconization film forming layer is that make through irradiation or plasma-activated interpolation modifier on surface, described inboard top layer, and described modifier is selected from one or more mixtures of silane coupler, fluorosilicone or polysiloxanes.
In the foregoing description that the utility model provides, the thickness of described siliconization film forming layer is 0.01 micron to 5 microns, preferred scheme is between 0.1 micron to 2 microns, and concrete numerical value can be elected 0.01 micron, 0.05 micron, 0.1 micron, 0.2 micron, 0.5 micron, 0.8 micron, 1 micron, 1.5 microns, 2 microns as.
The processing technology of a kind of high-barrier ultraviolet aging resistance solar cell notacoria that the utility model provides mainly may further comprise the steps:
(1), with nano level aluminium powder with have polymolecularity and become coating with low-molecular-weight mixed with resin, and stir;
(2), the coating uniform deposition is formed aluminum membranous layer at the base material outer surface, thickness is 10nm by roller coat, showering, spraying or typography;
(3), UV absorption resin or the fluororesin at the high printing opacity of base material coating on both sides with aluminum membranous layer forms protective layer;
(4), high-energy irradiation is carried out on surface, inboard top layer handles activation surface, top layer;
(5), base material spraying or roller coat or showering or dipping modifier to activating, through 20～70 degrees centigrade of heating, make substrate surface form the siliconization film forming layer.
Described modifier is selected from one or more mixtures of silane coupler, fluorosilicone or polysiloxanes.
All material of the present invention all is commercially available prod, aluminum membranous layer adopts the aluminum membranous layer that makes of coating deposition to be compounded on the base material, not only improved the block-water performance of notacoria greatly, guaranteed in long-term use can be because of the adhesive of aluminum membranous layer and base material agingly and cause the notacoria layering simultaneously, guaranteed the useful life of assembly more than 25 years.
Claims (7)
1. high-barrier ultraviolet aging resistance solar cell notacoria; it is characterized in that: comprise the main body of four-layer structure, the top layer that described main body comprises base material, is positioned at the aluminum membranous layer of described base material outer surface and is positioned at described base material inner surface and described aluminum membranous layer outer surface with ageing-resistant and defencive function.
2. a kind of high-barrier ultraviolet aging resistance solar cell notacoria as claimed in claim 1, it is characterized in that: the thickness of described base material outer surface aluminum membranous layer is 1nm～30nm.
3. a kind of high-barrier ultraviolet aging resistance solar cell notacoria as claimed in claim 2, it is characterized in that: the thickness of described base material outer surface aluminum membranous layer is 1nm～15nm.
4. a kind of high-barrier ultraviolet aging resistance solar cell notacoria as claimed in claim 1, it is characterized in that: the thickness of described base material is 0.05mm～0.35mm.
5. a kind of high-barrier ultraviolet aging resistance solar cell notacoria as claimed in claim 4, it is characterized in that: the thickness of described base material is 0.15mm～0.2mm.
6. a kind of high-barrier ultraviolet aging resistance solar cell notacoria as claimed in claim 1 is characterized in that: the fluorosilicone that the surface, inboard top layer of described main body has through irradiation or plasma fluorine siliconization processing formation changes into rete.
7. a kind of high-barrier ultraviolet aging resistance solar cell notacoria as claimed in claim 1, it is characterized in that: the inboard top layer of described main body is the acrylate resin layer with UV absorption function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202202341U CN201590418U (en) | 2009-10-27 | 2009-10-27 | High barrier UV aging resistant solar cell back film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202202341U CN201590418U (en) | 2009-10-27 | 2009-10-27 | High barrier UV aging resistant solar cell back film |
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| Publication Number | Publication Date |
|---|---|
| CN201590418U true CN201590418U (en) | 2010-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202202341U Expired - Lifetime CN201590418U (en) | 2009-10-27 | 2009-10-27 | High barrier UV aging resistant solar cell back film |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102054878B (en) * | 2009-10-27 | 2013-02-06 | 苏州中来光伏新材股份有限公司 | High barrier ultraviolet ray aging resistant solar cell back film and processing technique thereof |
| CN103252953A (en) * | 2013-04-27 | 2013-08-21 | 杭州福斯特光伏材料股份有限公司 | Integrated photovoltaic module back plate material with anti-PID (Potential Induced Degradation) effect |
-
2009
- 2009-10-27 CN CN2009202202341U patent/CN201590418U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102054878B (en) * | 2009-10-27 | 2013-02-06 | 苏州中来光伏新材股份有限公司 | High barrier ultraviolet ray aging resistant solar cell back film and processing technique thereof |
| CN103252953A (en) * | 2013-04-27 | 2013-08-21 | 杭州福斯特光伏材料股份有限公司 | Integrated photovoltaic module back plate material with anti-PID (Potential Induced Degradation) effect |
| CN103252953B (en) * | 2013-04-27 | 2015-04-01 | 杭州福斯特光伏材料股份有限公司 | Integrated photovoltaic module back plate material with anti-PID (Potential Induced Degradation) effect |
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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 |
Granted publication date: 20100922 |
|
| CX01 | Expiry of patent term |