CN103618015A - Novel solar cell backplate and preparation method thereof - Google Patents
Novel solar cell backplate and preparation method thereof Download PDFInfo
- Publication number
- CN103618015A CN103618015A CN201310670804.8A CN201310670804A CN103618015A CN 103618015 A CN103618015 A CN 103618015A CN 201310670804 A CN201310670804 A CN 201310670804A CN 103618015 A CN103618015 A CN 103618015A
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- Prior art keywords
- solar battery
- novel solar
- polyester film
- biaxially oriented
- oriented polyester
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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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
The invention relates to the technical field of solar cell backplates, and particularly discloses a new solar cell backplate and a preparation method thereof. The solar cell backplate is prepared from an ultra-drainage polymer layer, a double-way stretching polyester film base material, a bonding agent layer and a polyolefine bonding layer by coating a composite technology. The new solar cell backplate and the preparation method thereof provided by the invention have the advantages that the ultra-drainage polymer layer is adopted, the new solar cell backplate has an ultra-drainage property, water bubbles are avoided adhering on the surface of the backplate, the hydrolysis resistance property of the backplate is improved, and the long term operation of a solar energy assembly is guaranteed effectively.
Description
Technical field
The present invention relates to solar cell backboard technical field, especially a kind of new structure solar cell backboard and preparation method thereof.
Background technology
In current each state of global warming, all pay close attention under the background of energy-saving and emission-reduction, solar energy, as the renewable new forms of energy of a kind of inexhaustible novel green, is more and more subject to the whole world and pays close attention to widely.At present, the application of solar energy is mainly to utilize sun electrification component to convert solar energy to electric energy to be used, and solar power generation assembly is mainly comprised of header board, encapsulating material, crystal-silicon battery slice, backboard.Solar energy backboard is positioned at the back side of solar panel, and cell piece is played to protection and supporting role, therefore must have reliable electric insulating quality, weatherability, good mechanical property and aqueous vapor barrier.
General solar energy backboard generally has three-decker i.e. (TPT/TPE) at present, exposes for a long time outdoor hot and humid condition and often can occur bubble delamination because of glue-line hydrolysis, causes assembly to lose protection and occurs that generating efficiency declines and lost efficacy.Bonding between each layer of backboard realizes by polyurethane binder mostly, and this adhesive can slowly be hydrolyzed under hot and humid condition, and to backboard, generation has been hydrolyzed main contributions to the dewdrop adhering on backboard.
Summary of the invention
In order to improve the hydrolytic resistance of backboard, the invention provides a kind of new structure solar cell backboard and preparation method thereof.
In order to overcome the defect existing in background technology, the technical solution adopted for the present invention to solve the technical problems is: this new structure solar cell backboard and preparation method thereof comprises the middle base material of biaxially oriented polyester film, biaxially oriented polyester film is provided with the super-hydrophobic polymeric layer contacting with air surface, biaxially oriented polyester film bottom is provided with the Polyofefine adhesive layer film contacting with lamination of solar battery components material, and biaxially oriented polyester film and Polyofefine adhesive layer film are bonding by adhesive phase.
According to another embodiment of the invention, further comprise homopolymers or the copolymer that described super-hydrophobic polymeric layer is polysiloxanes.
According to another embodiment of the invention, the thickness that further comprises described super-hydrophobic polymeric layer is 0.5～50 μ m.
According to another embodiment of the invention, further comprise that described biaxially oriented polyester film polyester used is the condensation polymer of binary acid and dihydroxylic alcohols.
According to another embodiment of the invention, the thickness that further comprises described biaxial stretching polyester layer is 50～500 μ m.
According to another embodiment of the invention, further comprise that described Polyofefine adhesive layer is the homopolymers of a kind of alkene or alkene esters monomer or copolymer or the blend of multiple alkene or alkene esters monomer.
According to another embodiment of the invention, the thickness that further comprises described Polyofefine adhesive layer is 20～200 μ m.
According to another embodiment of the invention, further comprise that described adhesive phase is polyurethane binding.
According to another embodiment of the invention, the thickness that further comprises described adhesive phase is 5～20 μ m.
According to another embodiment of the invention, further comprise that the present invention further comprises the preparation method of novel solar battery backboard, the method comprises:
The first step, employing paint-on technique are evenly applied to biaxially oriented polyester film one side by super-hydrophobic polymeric layer, cross the dry cooling rolling of drying tunnel;
Second step, employing dry laminating technology are compound to Polyofefine adhesive layer film by adhesive the opposite side of biaxially oriented polyester film, after cooling rolling, complete.
Advantage of the present invention is at backboard and air contact side, to form super-hydrophobic interface with super-hydrophobic polymeric layer, avoid dewdrop, rainwater and steam in the adhesion of back plate surface, improve the anti-hydrolytic performance of backboard, utilize in addition super-hydrophobic polymeric layer replacement fluorine film with low cost can effectively reduce product cost, the solar energy backboard of preparing has good anti-hydrolytic performance, water vapor rejection performance and mechanical performance, can effectively guarantee the long-term work of solar components.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention;
In figure, 1, super-hydrophobic polymeric layer, 2, biaxially oriented laminated polyester film, 3, adhesive phase, 4, Polyofefine adhesive layer film.
Embodiment
For content of the present invention is more easily understood, according to specific embodiment, also the present invention is further detailed explanation by reference to the accompanying drawings below.
If Fig. 1 is structural representation of the present invention, a kind of novel solar battery backboard, middle base material is biaxially oriented laminated polyester film 2, with air contact side be super-hydrophobic polymeric layer 1, and lamination of solar battery components material contact side is for adhesive phase 3 between Polyofefine adhesive layer 4, Polyofefine adhesive layer and biaxially oriented laminated polyester film.Solar cell backboard preparation method of the present invention first adopts paint-on technique, super-hydrophobic polymeric layer 1 is evenly coated in to biaxially oriented polyester film 2 one sides, through drying tunnel dry cooling after again by dry type complex technique Polyofefine adhesive layer 4 on the opposite side of polyester film 2 is compound by adhesive 3.Technique of the present invention is simply ripe, is easy to industrialization, adopts super-hydrophobic polymeric layer with low cost to substitute fluoropolymer layer and reduces product cost, and surface super hydrophobic layer is effectively protected polyester film, improves the anti-hydrolytic performance of solar cell backboard.
Super-hydrophobic polymeric layer 1 is surperficial polymethyl siloxane homopolymers or the copolymer layer with micron and nano.
Super-hydrophobic polymeric layer 1 thickness is 0.5～50 μ m.
Biaxially oriented polyester film 2 polyester used is the condensation polymer of binary acid and dihydroxylic alcohols, and the thickness of biaxially oriented polyester film is 50～500 μ m.
Polyofefine adhesive layer 4 is the copolymer of polyolefin and polyolefin ester monomer, and the thickness of Polyofefine adhesive layer is 20～200 μ m.
The invention provides the preparation method of a kind of anti-hydrolytic performance new structure solar cell backboard good and with low cost.
Below in conjunction with specific embodiment, further illustrate the present invention
Embodiment:
In a reactor, add a certain amount of methyl ortho-siliformic acid, dropwise add subsequently excess of ammonia water (1mol/L), at normal temperatures after ageing certain hour, methyl ortho-siliformic acid occurs from polycondensation, on formation Si atom, directly connect methyl, the converging network system that the Si-O-Si that repeats of take is skeleton, then add enough ethanol, by ultrasonic wave, disperse to obtain for 30 minutes polysiloxanes sol solutions.Adopt slot coated method that polysiloxanes sol solutions is evenly coated in to biaxially oriented polyester film 2 one sides, enter 100 ℃ of drying tunnels dry, after cooling rolling, by nick version, at biaxially oriented polyester film 2 opposite sides, be evenly coated with polyurethane binder again, by the cooling rolling of the compound upper polyolefin film of dry type composite algorithm, the novel solar battery backboard of acquisition, anti-hydrolytic performance, good mechanical properties, two 852000h, without xanthochromia delamination foaming phenomenon, can meet the outdoor long-time requirement of using.
The present invention compared with prior art, provides a kind of anti-hydrolytic performance good, the new structure solar cell backboard of easy continuous industrial production with low cost.
In sum, be only specific embodiments of the invention, be not limited to the present invention, within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a novel solar battery backboard, it is characterized in that, comprise the middle base material of biaxially oriented polyester film (2), biaxially oriented polyester film (2) is provided with the super-hydrophobic polymeric layer (1) contacting with air surface, biaxially oriented polyester film (2) bottom is provided with the Polyofefine adhesive layer film (4) contacting with lamination of solar battery components material, and biaxially oriented polyester film (2) and Polyofefine adhesive layer film (4) are bonding by adhesive phase (3).
2. novel solar battery backboard according to claim 1, is characterized in that, homopolymers or copolymer that described super-hydrophobic polymeric layer (1) is polysiloxanes.
3. novel solar battery backboard according to claim 1, is characterized in that, described super-hydrophobic polymeric layer (1) thickness is 0.5～50 μ m.
4. novel solar battery backboard according to claim 1, is characterized in that, described biaxially oriented polyester film (2) polyester used is the condensation polymer of binary acid and dihydroxylic alcohols.
5. novel solar battery backboard according to claim 1, is characterized in that, the thickness of described biaxially oriented polyester film (2) is 50～500 μ m.
6. novel solar battery backboard according to claim 1, is characterized in that, described Polyofefine adhesive layer film (4) is the homopolymers of a kind of alkene or alkene esters monomer or copolymer or the blend of multiple alkene or alkene esters monomer.
7. novel solar battery backboard according to claim 1, is characterized in that, the thickness of described Polyofefine adhesive layer film (4) is 20～200 μ m.
8. novel solar battery backboard according to claim 1, is characterized in that, described adhesive phase (3) is polyurethane binding.
9. novel solar battery backboard according to claim 1, is characterized in that, the thickness of described adhesive phase (3) is 5～20 μ m.
10. the preparation method of novel solar battery backboard according to claim 1, is characterized in that, the method comprises:
The first step, employing paint-on technique are evenly applied to biaxially oriented polyester film (2) one sides by super-hydrophobic polymeric layer (1), cross the dry cooling rolling of drying tunnel;
Second step, employing dry laminating technology are compound to Polyofefine adhesive layer film (4) by adhesive (3) opposite side of biaxially oriented polyester film (2), after cooling rolling, complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310670804.8A CN103618015A (en) | 2013-12-12 | 2013-12-12 | Novel solar cell backplate and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310670804.8A CN103618015A (en) | 2013-12-12 | 2013-12-12 | Novel solar cell backplate and preparation method thereof |
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| CN103618015A true CN103618015A (en) | 2014-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310670804.8A Pending CN103618015A (en) | 2013-12-12 | 2013-12-12 | Novel solar cell backplate and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024994A (en) * | 2016-07-29 | 2016-10-12 | 无锡中洁能源技术有限公司 | Production technology of solar backboard easy to clean |
| CN106129178A (en) * | 2016-07-27 | 2016-11-16 | 无锡中洁能源技术有限公司 | A kind of production technology from solar energy backboard of lowering the temperature |
| CN106129179A (en) * | 2016-07-28 | 2016-11-16 | 无锡中洁能源技术有限公司 | A kind of production technology of hydrolysis solar energy backboard |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120006387A1 (en) * | 2009-03-27 | 2012-01-12 | Konica Minolta Opto, Inc. | Moisture-proof film, method for manufacturing the same, back sheet for solar cell module and solar cell module using the same |
| CN102442044A (en) * | 2010-08-26 | 2012-05-09 | 富士胶片株式会社 | Solar cell protective sheet and method for manufacturing same, backsheet for solar cell, and solar cell module |
| CN103443932A (en) * | 2011-03-07 | 2013-12-11 | 富士胶片株式会社 | Protective sheet for solar cell and process for manufacturing same, back sheet member for solar cell, back sheet for solar cell, and solar cell module |
-
2013
- 2013-12-12 CN CN201310670804.8A patent/CN103618015A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120006387A1 (en) * | 2009-03-27 | 2012-01-12 | Konica Minolta Opto, Inc. | Moisture-proof film, method for manufacturing the same, back sheet for solar cell module and solar cell module using the same |
| CN102442044A (en) * | 2010-08-26 | 2012-05-09 | 富士胶片株式会社 | Solar cell protective sheet and method for manufacturing same, backsheet for solar cell, and solar cell module |
| CN103443932A (en) * | 2011-03-07 | 2013-12-11 | 富士胶片株式会社 | Protective sheet for solar cell and process for manufacturing same, back sheet member for solar cell, back sheet for solar cell, and solar cell module |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129178A (en) * | 2016-07-27 | 2016-11-16 | 无锡中洁能源技术有限公司 | A kind of production technology from solar energy backboard of lowering the temperature |
| CN106129179A (en) * | 2016-07-28 | 2016-11-16 | 无锡中洁能源技术有限公司 | A kind of production technology of hydrolysis solar energy backboard |
| CN106024994A (en) * | 2016-07-29 | 2016-10-12 | 无锡中洁能源技术有限公司 | Production technology of solar backboard easy to clean |
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Application publication date: 20140305 |