CN102468353A - Rear panel composite film for solar photovoltaic cell assembly, and preparation method for rear panel composite film - Google Patents
Rear panel composite film for solar photovoltaic cell assembly, and preparation method for rear panel composite film Download PDFInfo
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- CN102468353A CN102468353A CN2010105389893A CN201010538989A CN102468353A CN 102468353 A CN102468353 A CN 102468353A CN 2010105389893 A CN2010105389893 A CN 2010105389893A CN 201010538989 A CN201010538989 A CN 201010538989A CN 102468353 A CN102468353 A CN 102468353A
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- solar photovoltaic
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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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 invention relates to a rear panel composite film for a solar photovoltaic cell assembly, and a preparation method for the rear panel composite film. The rear panel composite film for the solar photovoltaic cell assembly is formed by compounding a polytetrafluoroethylene (PTFE) rotary cut film (1) with thickness of 0.028 to 0.040mm, a polyethylene terephthalate (PET) film (2) with the thickness of 0.17 to 0.35mm, a PTFE rotary cut film (3) with the thickness of 0.028 to 0.040mm, and hydrophilic films a, b, c, and d, wherein the hydrophilic films a, b, c, and d are arranged on upper and lower surfaces of the PTFE rotary cut film (1) and the PTFE rotary cut film (3). The preparation method comprises the following steps of: coating adhesives on the upper and lower surfaces of the PET film respectively, arranging the PET film between the PTFE films and the hydrophilic films, hot-pressing, and bonding and curing to obtain the rear panel composite film. Import raw materials are not used in the rear panel composite film, so cost is greatly reduced, and domestication degree is improved. Moreover, the rear panel composite film can be adhered to a glue film of a solar photovoltaic cell well.
Description
(1) technical field
The present invention relates to a kind of assembly that is used for solar-energy photo-voltaic cell and preparation method thereof, be specifically related to a kind of solar photovoltaic battery component rear panel compound film and preparation method thereof.
(2) background technology
Solar energy is a kind of cleaning, safety and inexhaustible again regenerative resource; Needs along with the aggravation and the environmental protection of energy crisis; The development and utilization of solar energy has received increasing concern; In this respect, the conversion of the photovoltaic of solar energy is the fastest research field of development in recent years.
The solar photovoltaic battery component rear panel compound film is the significant components of solar cell, and it is used to protect solar panel and associated components to avoid the influence of outdoor environment.Characteristics such as that the solar photovoltaic battery component rear panel compound film has is ageing-resistant, high-low temperature resistant, anti-solvent corrosion, resistant are hydrophobic can prevent effectively that oxygen, steam, corrosivity gas-liquid and all contaminations from corroding solar cell.
At present; Most widely used kind is a TPT type backboard film in China's solar photovoltaic battery component rear panel compound film; It is by up and down two-layer polyvinyl fluoride (PVF) or Kynoar (PVDF) and the compound formation of intermediate layer polyester (PET) trilamellar membrane; Important source material polyvinyl fluoride wherein and Kynoar costs an arm and a leg and serious dependence on import, this has seriously restricted China's solar-energy photo-voltaic cell industry development.
(3) summary of the invention
Technical problem to be solved by this invention is to overcome the weak point of prior art, provides that a kind of cost is cheap relatively, raw material is easy to get, the solar photovoltaic battery component rear panel compound film of production domesticization degree height and excellent combination property.
Technical problem to be solved by this invention also is to provide a kind of preparation method of said solar photovoltaic battery component rear panel compound film.
For achieving the above object, the technical scheme that the present invention adopts is:
Said solar photovoltaic battery component rear panel compound film is composited by seven tunics.
0.028 the thick polytetrafluoroethylene film of～0.040mm, its upper and lower surfaces are respectively with one deck hydrophilic membrane (hydrophilic thickness about 10～200nm);
0.17 the thick pet film of～0.35mm;
0.028 the thick polytetrafluoroethylene film of～0.040mm, its upper and lower surfaces are respectively with one deck hydrophilic membrane (hydrophilic thickness about 10～200nm).
Polytetrafluoroethylene (PTFE) of the present invention is a kind of features plastics of excellent combination property, and the good reputation of " plastics king " is arranged, and its film article has performances such as very outstanding ageing-resistant, corrosion-resistant, insulation, and application very extensively.Compare with polyvinyl fluoride (PVF) with Kynoar (PVDF)
Preferably, said solar photovoltaic battery component rear panel compound film is composited by following seven layer materials:
0.035mm (its upper and lower surfaces respectively has one deck hydrophilic membrane, thick about 10～200nm) to thick polytetrafluoroethylene film;
0.30mm thick pet film;
0.035mm (its upper and lower surfaces respectively has one deck hydrophilic membrane, thick about 10～200nm) to thick polytetrafluoroethylene film;
Preferably, said polytetrafluoroethylene film is made by accurate rotary cut machine rotary cut processing.
Preferably, said polytetrafluoroethylene film carries out surface treatment (handling frequency 13.56MHz) through the low-temperature plasma surface processing equipment.
Preferably, said hydrophilic membrane makes through polytetrafluoroethylene film is carried out the low-temperature plasma surface treatment, and thickness is 10～200nm.
Preferably, pet film is made by The tape casting processing.
The preparation method of said solar photovoltaic battery component rear panel compound film comprises the steps:
Apply adhesive respectively at the pet film upper and lower surfaces;
Pet film is placed between the two-layer polytetrafluoroethylene film;
The curing of three-layer thin-film heat pressure adhesive is made this solar photovoltaic battery component rear panel compound film.
Preferably, said polytetrafluoroethylene film is made by accurate rotary cut machine rotary cut processing.
Preferably, said polytetrafluoroethylene film carries out surface treatment (handling frequency 13.56MHz) through the low-temperature plasma surface processing equipment.
Preferably, said polytetrafluoroethylene film is made by following method: polyflon promptly makes polytetrafluoroethylene film and hydrophilic membrane through drying, base, sintering, rotary cut, low-temperature plasma surface treatment successively.
Preferably, said hydrophilic membrane makes through PolytetrafluoroethylFilm Film being carried out the surface treatment of 13.56MHz low-temperature plasma, and hydrophilic membrane thickness is 10～200nm.
Preferably, pet film is made by The tape casting processing.
Solar photovoltaic battery component rear panel compound film of the present invention; Expensive Kynoar and polyvinyl fluoride have been replaced with polytetrafluoroethylene cheap and easy to get; Not only significantly reduce cost, and improved the production domesticization degree of solar photovoltaic battery component rear panel compound film.In addition; After the surface treatment of poly tetrafluoroethylene process low-temperature plasma; Generated hydrophilic membrane at the film upper and lower surfaces, but the viscosity of PTFE film surface strengthens significantly thus, this makes it and PET rete that good adhesive property arranged; Also make simultaneously being connected that this rear panel compound film can be more stable, improve the whole stability of solar-energy photo-voltaic cell with the solar-energy photo-voltaic cell glued membrane.
This rear panel compound film is a raw material with polytetrafluoroethylene (PTFE) and PETG (PET); Through precision control, make this rear panel compound film have excellent properties such as the erosion of all contaminations such as ageing-resistant, high-low temperature resistant, anti-solvent corrosion, resistant are hydrophobic, oxytolerant gas, steam, corrosivity gas-liquid, high insulation to the low-temperature plasma surface treatment of PTFE and film combination process.This rear panel compound film has permanently effective protective effect to solar-energy photo-voltaic cell.
(4) description of drawings
Fig. 1 is a solar photovoltaic battery component rear panel compound film section structure sketch map of the present invention.
Among the figure, (1), (3)-through low-temperature plasma surface-treated polytetrafluoroethylene (PTFE) rotary cut film
(2)-PETG (PET) film
A, b, c, d-handle the hydrophilic membrane that the back generates through low-temperature plasma on the PTFE film, its grafting is attached to PTFE film surface and contains the polarity hydrophilic radical.
(5) embodiment
Through embodiment the present invention is described further below.
The preparation of embodiment solar photovoltaic battery component rear panel compound film
1. polyflon promptly makes polytetrafluoroethylene film and hydrophilic membrane through drying, base, sintering, rotary cut, low-temperature plasma surface treatment successively.
2. adopt The tape casting to make pet film.
3. apply adhesive respectively at the pet film upper and lower surfaces; Pet film places up and down between two polytetrafluoroethylene films and the hydrophilic membrane, seven layer film heat pressure adhesives is solidified make this solar photovoltaic battery component rear panel compound film.
The solar photovoltaic battery component rear panel compound film that makes is composited by following seven layer materials:
0.035mm (its upper and lower surfaces respectively has one deck hydrophilic membrane, thick about 10～200nm) to thick polytetrafluoroethylene film;
0.30mm thick pet film;
0.035mm (its upper and lower surfaces respectively has one deck hydrophilic membrane, thick about 10～200nm) to thick polytetrafluoroethylene film;
Embodiment Performance Detection data:
| Test event | Unit | Test result |
| Hot strength | MPa | ＞40 |
| Interlaminar strength | N/15mm | ＞30 |
| Backboard film outer surface tension force | dyn/cm | 42 |
| Puncture voltage | KV | ＞18 |
| Moisture-vapor transmission | g/m 2·d | ＜2.0 |
Claims (10)
1. solar photovoltaic battery component rear panel compound film is characterized in that being composited by following seven layer materials:
0.028 the thick polytetrafluoroethylene film of～0.040mm, its upper and lower surfaces are respectively with one deck hydrophilic membrane (hydrophilic thickness about 10～200nm);
0.17 the thick pet film of～0.35mm;
0.028 the thick polytetrafluoroethylene film of～0.040mm, its upper and lower surfaces are respectively with one deck hydrophilic membrane (hydrophilic thickness about 10～200nm).
2. solar photovoltaic battery component rear panel compound film according to claim 1 is characterized in that being composited by following seven layer materials:
0.035mm (its upper and lower surfaces respectively has one deck hydrophilic membrane, thick about 10～200nm) to thick polytetrafluoroethylene film;
0.30mm thick pet film;
0.035mm (its upper and lower surfaces respectively has one deck hydrophilic membrane, thick about 10～200nm) to thick polytetrafluoroethylene film.
3. solar photovoltaic battery component rear panel compound film according to claim 1 is characterized in that said polytetrafluoroethylene film is made by rotary cut processing.
4. polytetrafluoroethylene film is process low-temperature plasma surface-treated film according to claim 1.
5. after polytetrafluoroethylene film passed through the low-temperature plasma surface treatment according to claim 1, its upper and lower surfaces was respectively with one deck hydrophilic membrane (hydrophilic thickness about 10～200nm).
6. the preparation method of solar photovoltaic battery component rear panel compound film according to claim 1 is characterized in that comprising the steps:
Apply adhesive respectively at the pet film upper and lower surfaces;
Pet film is placed up and down between two polytetrafluoroethylene films and the appended hydrophilic membrane thereof;
The curing of seven tunic heat pressure adhesives is made this solar photovoltaic battery component rear panel compound film.
7. like the preparation method of the said solar photovoltaic battery component rear panel compound film of claim 6, it is characterized in that said polytetrafluoroethylene film is made by rotary cut processing.
8. like the preparation method of the said solar photovoltaic battery component rear panel compound film of claim 7; It is characterized in that said polytetrafluoroethylene film is through low-temperature plasma surface treatment (handling frequency 13.56MHz); Its upper and lower surfaces respectively has one deck hydrophilic membrane, thick about 10～200nm.
9. like the preparation method of the said solar photovoltaic battery component rear panel compound film of claim 8, it is characterized in that said polytetrafluoroethylene film is made by following method: polyflon promptly makes polytetrafluoroethylene film through drying, base, sintering, rotary cut, low-temperature plasma surface treatment successively.
10. like the preparation method of the said solar photovoltaic battery component rear panel compound film of claim 8, it is characterized in that said hydrophilic membrane makes through polytetrafluoroethylene film being carried out low-temperature plasma surface treatment (handling frequency 13.56MHz).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105389893A CN102468353A (en) | 2010-11-11 | 2010-11-11 | Rear panel composite film for solar photovoltaic cell assembly, and preparation method for rear panel composite film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105389893A CN102468353A (en) | 2010-11-11 | 2010-11-11 | Rear panel composite film for solar photovoltaic cell assembly, and preparation method for rear panel composite film |
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| CN102468353A true CN102468353A (en) | 2012-05-23 |
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| CN2010105389893A Pending CN102468353A (en) | 2010-11-11 | 2010-11-11 | Rear panel composite film for solar photovoltaic cell assembly, and preparation method for rear panel composite film |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047761A (en) * | 2015-08-25 | 2015-11-11 | 常州回天新材料有限公司 | High-performance solar cell back membrane making technology |
| CN105237924A (en) * | 2015-09-01 | 2016-01-13 | 北京汉能光伏投资有限公司 | Preparation method and application of polytetrafluoroethylene modified film being suitable for solar cell protective film |
| KR101604283B1 (en) * | 2014-12-08 | 2016-03-17 | 엘에스산전 주식회사 | Solar cell module |
Citations (5)
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|---|---|---|---|---|
| US6432510B1 (en) * | 1998-11-11 | 2002-08-13 | Samyang Corporation | Fluorinated resins having a surface with high wettability |
| JP2004103251A (en) * | 2002-09-04 | 2004-04-02 | Sekisui Chem Co Ltd | Discharge plasma treatment device |
| CN101123278A (en) * | 2007-08-31 | 2008-02-13 | 周均华 | Compound film for solar battery rear board and its making method |
| CN101811384A (en) * | 2009-02-24 | 2010-08-25 | 苏州中来太阳能材料技术有限公司 | Medium surface energy teflon backing plate and processing technique thereof |
| CN201998494U (en) * | 2010-11-11 | 2011-10-05 | 天津市天塑科技集团有限公司技术中心 | Back board composite film of solar energy photovoltaic battery assembly |
-
2010
- 2010-11-11 CN CN2010105389893A patent/CN102468353A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6432510B1 (en) * | 1998-11-11 | 2002-08-13 | Samyang Corporation | Fluorinated resins having a surface with high wettability |
| JP2004103251A (en) * | 2002-09-04 | 2004-04-02 | Sekisui Chem Co Ltd | Discharge plasma treatment device |
| CN101123278A (en) * | 2007-08-31 | 2008-02-13 | 周均华 | Compound film for solar battery rear board and its making method |
| CN101811384A (en) * | 2009-02-24 | 2010-08-25 | 苏州中来太阳能材料技术有限公司 | Medium surface energy teflon backing plate and processing technique thereof |
| CN201998494U (en) * | 2010-11-11 | 2011-10-05 | 天津市天塑科技集团有限公司技术中心 | Back board composite film of solar energy photovoltaic battery assembly |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101604283B1 (en) * | 2014-12-08 | 2016-03-17 | 엘에스산전 주식회사 | Solar cell module |
| CN105679870A (en) * | 2014-12-08 | 2016-06-15 | Ls产电株式会社 | Solar cell module |
| CN105047761A (en) * | 2015-08-25 | 2015-11-11 | 常州回天新材料有限公司 | High-performance solar cell back membrane making technology |
| CN105237924A (en) * | 2015-09-01 | 2016-01-13 | 北京汉能光伏投资有限公司 | Preparation method and application of polytetrafluoroethylene modified film being suitable for solar cell protective film |
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Application publication date: 20120523 |