CN111261728A - Solar cell backboard composite film - Google Patents
Solar cell backboard composite film Download PDFInfo
- Publication number
- CN111261728A CN111261728A CN201811453218.7A CN201811453218A CN111261728A CN 111261728 A CN111261728 A CN 111261728A CN 201811453218 A CN201811453218 A CN 201811453218A CN 111261728 A CN111261728 A CN 111261728A
- Authority
- CN
- China
- Prior art keywords
- film
- solar cell
- composite film
- cell backboard
- eva
- 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 229920002620 polyvinyl fluoride Polymers 0.000 claims abstract description 26
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 229920002799 BoPET Polymers 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000013329 compounding Methods 0.000 claims abstract description 6
- 150000001412 amines Chemical class 0.000 claims abstract description 4
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 4
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 4
- 239000004611 light stabiliser Substances 0.000 claims abstract description 4
- 239000003381 stabilizer Substances 0.000 claims abstract description 4
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 10
- -1 polyfluoroethylene Polymers 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 4
- 239000012943 hotmelt Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 16
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 16
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 14
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- 206010039424 Salivary hypersecretion Diseases 0.000 description 4
- 239000005022 packaging material Substances 0.000 description 4
- 208000026451 salivation Diseases 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000006750 UV protection Effects 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003915 cell function Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920006342 thermoplastic vulcanizate Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0216—Coatings
- H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02167—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/049—Protective back sheets
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Laminated Bodies (AREA)
Abstract
The invention mainly discloses a solar cell backboard composite film, which is formed by compounding the following three layers of materials: the film comprises a polyvinyl fluoride film with the thickness of 0.035-0.045 mm, a PET film with the thickness of 0.18-0.30 mm and an EVA coating with the thickness of 0.025-0.035 mm; the EVA coating consists of the following components in parts by weight: 100 parts of EVA resin, 0.1 part of antioxidant, 1 part of hindered amine stabilizer and 0.2 part of light stabilizer; the method comprises the following steps: respectively coating curing agents on the surfaces of the polyvinyl fluoride film and the PET film, carrying out hot melt adhesion to obtain a base film, and then coating an EVA coating on the other surface of the PET film to obtain the solar cell backboard composite film. The solar cell backboard composite film disclosed by the invention is simple in preparation process and excellent in performance.
Description
Technical Field
The invention relates to the field of solar cells, in particular to a solar cell backboard composite film.
Background
At present, the solar cell is directly exposed to the atmosphere and is subject to erosion of high and low temperature and water vapor. If the solar cell packaging material cannot resist corrosion, the photoelectric conversion performance of the solar cell packaging material is easy to attenuate, and the practical value is lost, so that the research on the solar cell packaging material is very important and is concerned by people. In order to achieve the purposes of high and low temperature resistance and water vapor resistance, at present, two EVA (ethylene vinyl acetate) adhesive films are commonly adopted to encapsulate the solar cell and are bonded with upper glass and bottom TPT (thermoplastic vulcanizate) into a whole through hot pressing to form the solar cell panel. The back plate of the solar cell is made of TPT packaging material, and the preparation process is complex and the cost is high.
Disclosure of Invention
The invention aims to provide a solar cell backboard composite film which is simple in preparation process, low in cost and good in performance.
The invention also provides a solar cell backboard composite film.
The solar cell backboard composite film is formed by compounding the following three layers of materials: the film comprises a polyvinyl fluoride film with the thickness of 0.035-0.045 mm, a PET film with the thickness of 0.18-0.30 mm and an EVA coating with the thickness of 0.025-0.035 mm.
The polyvinyl fluoride (PVF) is a thermoplastic resin with excellent performance, and a film product of the polyvinyl fluoride (PVF) has excellent aging resistance (such as ultraviolet resistance, weather resistance and the like) and has wide application fields. The PET of the invention refers to polyethylene terephthalate, and the EVA refers to ethylene-vinyl acetate copolymer.
Further, the solar cell back panel composite film is formed by compounding the following three layers of materials: 0.04mm thick polyvinyl fluoride film, 0.25mm thick PET film, 0.03mm thick EVA coating.
The properties and the thickness of each layer of material are crucial, and the self strength and the corrosion resistance and the ageing resistance of the composite film are directly influenced.
Further, the polyvinyl fluoride film is prepared by adding 1% of dibutyl phthalate into polyvinyl fluoride resin and carrying out salivation processing.
Further, the PET film is prepared by adding an anti-aging agent into PET resin and salivating.
Further, the EVA coating consists of the following components in parts by weight: 100 parts of EVA resin, 0.1 part of antioxidant, 1 part of hindered amine stabilizer and 0.2 part of light stabilizer.
The solar cell backboard composite film comprises the following steps: respectively coating curing agents on the surfaces of the polyvinyl fluoride film and the PET film, carrying out hot melt adhesion to obtain a base film, and then coating an EVA coating on the other surface of the PET film to obtain the solar cell backboard composite film.
Further, the polyvinyl fluoride film is prepared by adding 1% of dibutyl phthalate into polyvinyl fluoride resin and carrying out salivation processing.
The solar cell backboard composite film disclosed by the invention is simple in preparation process and excellent in performance. The solar cell panel packaged by the product can effectively prevent erosion of water vapor, oxygen and corrosive gas liquid, can resist high and low temperature, aging and cracking, thereby effectively protecting the cell function and enabling the solar cell panel to output electric energy for a long time.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
Example one
A solar cell backboard composite film comprises the following components:
the solar cell backboard composite film is formed by compounding the following three layers of materials: the film comprises a polyvinyl fluoride film with the thickness of 0.035-0.045 mm, a PET film with the thickness of 0.18-0.30 mm and an EVA coating with the thickness of 0.025-0.035 mm.
The polyvinyl fluoride (PVF) is a thermoplastic resin with excellent performance, and a film product of the polyvinyl fluoride (PVF) has excellent aging resistance (such as ultraviolet resistance, weather resistance and the like) and has wide application fields. The PET of the invention refers to polyethylene terephthalate, and the EVA refers to ethylene-vinyl acetate copolymer.
Further, the solar cell back panel composite film is formed by compounding the following three layers of materials: 0.04mm thick polyvinyl fluoride film, 0.25mm thick PET film, 0.03mm thick EVA coating.
The properties and the thickness of each layer of material are crucial, and the self strength and the corrosion resistance and the ageing resistance of the composite film are directly influenced.
Further, the polyvinyl fluoride film is prepared by adding 1% of dibutyl phthalate into polyvinyl fluoride resin and carrying out salivation processing.
Further, the PET film is prepared by adding an anti-aging agent into PET resin and salivating.
Further, the EVA coating consists of the following components in parts by weight: 100 parts of EVA resin, 0.1 part of antioxidant, 1 part of hindered amine stabilizer and 0.2 part of light stabilizer.
The solar cell backboard composite film comprises the following steps: respectively coating curing agents on the surfaces of the polyvinyl fluoride film and the PET film, carrying out hot melt adhesion to obtain a base film, and then coating an EVA coating on the other surface of the PET film to obtain the solar cell backboard composite film.
Further, the polyvinyl fluoride film is prepared by adding 1% of dibutyl phthalate into polyvinyl fluoride resin and carrying out salivation processing.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A solar cell backboard composite film is characterized in that: the solar cell backboard composite film is formed by compounding the following three layers of materials: a 0.04mm thick polyvinyl fluoride film, a 0.25mm thick PET film, and a 0.03mm thick EVA coating; the EVA coating consists of the following components in parts by weight: 100 parts of EVA resin, 0.1 part of antioxidant, 1 part of hindered amine stabilizer and 0.2 part of light stabilizer.
2. The solar cell back sheet composite film according to claim 1, wherein the polyfluoroethylene film is prepared by salivating polyvinyl fluoride resin with 1% dibutyl phthalate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811453218.7A CN111261728A (en) | 2018-11-30 | 2018-11-30 | Solar cell backboard composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811453218.7A CN111261728A (en) | 2018-11-30 | 2018-11-30 | Solar cell backboard composite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111261728A true CN111261728A (en) | 2020-06-09 |
Family
ID=70953563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811453218.7A Pending CN111261728A (en) | 2018-11-30 | 2018-11-30 | Solar cell backboard composite film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111261728A (en) |
-
2018
- 2018-11-30 CN CN201811453218.7A patent/CN111261728A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101365766B1 (en) | Polymer Composition, Multi-layered film and Photovoltaic Modules comprising the same | |
| CN100495735C (en) | Preparation method of solar battery rear panel compound film | |
| JP2012516565A (en) | Solar cell backsheet and manufacturing method thereof | |
| CN105990459A (en) | Flexible package composite film and manufacturing method thereof | |
| CN108611025A (en) | A kind of super fast curing solar energy packaging adhesive film and preparation method thereof | |
| CN103022192A (en) | High reflectance solar cell back-plane film, preparation method of high reflectance solar cell back-plane film, and solar cell | |
| WO2012169399A1 (en) | Solar cell module manufacturing method | |
| CN100485972C (en) | Method for preparing compound film for solar battery rear board | |
| CN207818584U (en) | A kind of photovoltaic cell fabric backplanes | |
| CN102468352A (en) | High-barrier flexible back film | |
| JP2011119475A (en) | Method of manufacturing solar cell module | |
| CN111261728A (en) | Solar cell backboard composite film | |
| CN102779880A (en) | Polyester tandem solar battery back film | |
| CN211743169U (en) | Solar cell backboard and solar cell module | |
| KR101414239B1 (en) | Solar battery module comprising white eva resin layer | |
| CN108630775B (en) | Thin-film solar cell packaged by coating and forming method thereof | |
| CN202917523U (en) | Rear panel for packaging of thin-film solar cell | |
| JP2010232441A (en) | Protective sheet for solar cell module, and solar cell module | |
| CN102468353A (en) | Rear panel composite film for solar photovoltaic cell assembly, and preparation method for rear panel composite film | |
| CN111785803A (en) | Anti-aging anti-cracking polycrystalline solar cell back plate | |
| JP2011159709A (en) | Resin sealing sheet and solar cell module | |
| AU2010280733B2 (en) | Method for producing solar modules | |
| WO2019128085A1 (en) | Solar panel | |
| KR101721577B1 (en) | Backsheet for solor cells having Polyvinylidene fluoride film | |
| TWI655787B (en) | Solar cell back protection sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200609 |