CN202977462U - A composite backboard containing a polyolefin bonding layer for a solar battery - Google Patents
A composite backboard containing a polyolefin bonding layer for a solar battery Download PDFInfo
- Publication number
- CN202977462U CN202977462U CN 201220597763 CN201220597763U CN202977462U CN 202977462 U CN202977462 U CN 202977462U CN 201220597763 CN201220597763 CN 201220597763 CN 201220597763 U CN201220597763 U CN 201220597763U CN 202977462 U CN202977462 U CN 202977462U
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- Prior art keywords
- layer
- composite
- polyolefin
- composite backboard
- metallocene
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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 relates to a composite backboard containing a polyolefin bonding layer for a solar battery. The composite backboard is characterized in that the composite backboard comprises four layers composite structures which are a weather-proof layer (1), an adhesive layer (2), a PET separating layer (3), and a metallocene polyethylene layer (4) from top to bottom. The thickness of the metallocene polyethylene layer (4) is from 100 to 1000 [mu] m. When the composite backboard is laminated, the battery sheets are directly sealed by the metallocene polyethylene layer and no other bonding material is required so that purposes of saving cost and simplifying technology are achieved while excellent comprehensive properties are acquired. The contact surface of the metallocene polyethylene layer and the battery sheets uses deep pattern in order to facilitate gas exhausting when the composite backboard is laminated.
Description
Technical field
The utility model relates to a kind of used for solar batteries composite back plate that contains the polyolefin tack coat, is mainly used in the encapsulation of solar module.
Background technology
Traditional solar module all adopts EVA as encapsulating material, and in order to promote the caking property of backboard and EVA, the inboard tack coat of backboard is general adopts low VA content EVA or surface-treated fluorine membrane structure etc.
Adopt the fluorine membrane structure as tack coat, even through surface treatment, its caking property is still not good; Just easily cause backboard and sealing separating with EVA being under illumination, moisture condition; And adopt modified EVA as binding material, although increased itself and the caking property of sealing with EVA, its weak weather resistance loses gradually to the protective effect of sealing with EVA it, reduces the useful life of assembly.In addition, no matter be fluorine film or modified EVA, all need adhesive to increase the caking property of itself and PET.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and the used for solar batteries composite back plate that contains the polyolefin tack coat that a kind of cost is low, manufacturing procedure is few, easy to use, production efficiency is high is provided.
The purpose of this utility model is achieved in that a kind of used for solar batteries composite back plate that contains the polyolefin tack coat, it is four layers of composite construction, be followed successively by weathering layer, adhesive layer, PET separator and metallocene PE layer from top to bottom, described metallocene PE layer thickness is preferably 300-700 μ m at 100-1000 μ m.
Described metallocene PE layer outer surface is pressed with decorative pattern, preferred dark decorative pattern.
Compared with prior art, the beneficial effects of the utility model are:
The direct sealed cell sheet of metallocene PE layer when lamination and need not other binding materials.Both reach the purpose of saving cost, simplifying technique, obtained again excellent combination property; Metallocene PE layer and cell piece contact-making surface adopt dark decorative pattern, exhaust when being beneficial to lamination.
Description of drawings
Fig. 1 is a kind of structural representation that contains the used for solar batteries composite back plate of polyolefin tack coat of the utility model.
Fig. 2 is preparation technology's flow chart of the present utility model.
Fig. 3 is the utility model recombination process schematic diagram.
Wherein:
Embodiment
Referring to Fig. 1, a kind of used for solar batteries composite back plate that contains the polyolefin tack coat that the utility model relates to, it is straticulate structure, be followed successively by weathering layer 1, adhesive layer 2, PET separator 3 and metallocene PE layer (MPE layer) 4 from top to bottom, described metallocene PE layer 4 thickness are preferably 300-700 μ m at 100-1000 μ m.
Described metallocene PE layer 4 outer surface (even used time and cell piece contact-making surface) adopt embossing, the preferred dark decorative pattern of decorative pattern.
Described weathering layer 1 is the fluorine rete, as PVF, PVDF.
The thickness of described PET separator 3 is 50-500 μ m, particularly preferably 100-300 μ m.
In the present embodiment, MPE can adopt silane-modifiedly, can be also through maleic anhydride modified; PE preferred density: 0.865-0.930g/cm
3MI scope (190 ℃): preferred: 1-8g/10min.
Described backboard separator adopts PET, and it will pass through the surface treatments such as corona, plasma, to increase itself and metallocene PE layer cohesive force.
Preparation technology of the present utility model is referring to Fig. 2 and Fig. 3, and MPE and backboard semi-finished product adopt extrusion coated compound; The melting PE that extrudes with extruder is as adhesive, and the two-layer membrane material that has bondd is compound under the extruding of composite embossed roller and chill roll with in addition, makes composite material through cooling, rolling.
At first to carry out modification to MPE before combination process is implemented, usually adopt silane-modified or maleic anhydride modified, with cementitiousness and the sealing property that promotes himself.Fluorine film, pet sheet face all will carry out corona or plasma treatment, to promote its caking property.The extrusion temperature general control is at 110-130 ℃, and the chill-roll temperature general control is at 20 ~ 50 ℃, the highest should not be over 60 ℃.In sum, the utility model is by adopting novel inner layer material and combination process to reach the effect of saving cost, reducing manufacturing procedure.
Below embodiment has been described in detail the utility model by reference to the accompanying drawings, and those skilled in the art can make many variations to the utility model according to the above description.Thereby some details in embodiment should not consist of restriction of the present utility model, and the scope that the utility model will define with appended claims is as protection range of the present utility model.
Claims (4)
1. used for solar batteries composite back plate that contains the polyolefin tack coat, it is characterized in that it is four layers of composite construction, be followed successively by weathering layer (1), adhesive layer (2), PET separator (3) and metallocene PE layer (4) from top to bottom, described metallocene PE layer (4) thickness is at 100-1000 μ m.
2. a kind of used for solar batteries composite back plate that contains the polyolefin tack coat according to claim 1, is characterized in that, described metallocene PE layer (4) thickness is at 300-700 μ m.
3. a kind of used for solar batteries composite back plate that contains the polyolefin tack coat according to claim 1 and 2, is characterized in that, described metallocene PE layer (4) outer surface is provided with decorative pattern.
4. a kind of used for solar batteries composite back plate that contains the polyolefin tack coat according to claim 3, is characterized in that, described decorative pattern is dark decorative pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220597763 CN202977462U (en) | 2012-11-14 | 2012-11-14 | A composite backboard containing a polyolefin bonding layer for a solar battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220597763 CN202977462U (en) | 2012-11-14 | 2012-11-14 | A composite backboard containing a polyolefin bonding layer for a solar battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977462U true CN202977462U (en) | 2013-06-05 |
Family
ID=48518503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220597763 Expired - Lifetime CN202977462U (en) | 2012-11-14 | 2012-11-14 | A composite backboard containing a polyolefin bonding layer for a solar battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977462U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461565A (en) * | 2017-05-19 | 2018-08-28 | 浙江帝恒实业有限公司 | A kind of Weatherproof solar battery back-sheet and preparation method thereof |
-
2012
- 2012-11-14 CN CN 201220597763 patent/CN202977462U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461565A (en) * | 2017-05-19 | 2018-08-28 | 浙江帝恒实业有限公司 | A kind of Weatherproof solar battery back-sheet and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200413 Address after: 201201 room 909a, building a, No. 3000, Longdong Avenue, Pudong New Area, Shanghai Patentee after: SHANGHAI HIUV NEW MATERIALS Co.,Ltd. Address before: 215600 West Road, South District, Zhangjiagang Economic Development Zone, Wuxi, Jiangsu Patentee before: AKCOME FILM & APPLIED NEW MATERIALS (SUZHOU) Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |
|
| CX01 | Expiry of patent term |