CN202742769U - Polyester composite film for solar battery back board - Google Patents
Polyester composite film for solar battery back board Download PDFInfo
- Publication number
- CN202742769U CN202742769U CN 201220307928 CN201220307928U CN202742769U CN 202742769 U CN202742769 U CN 202742769U CN 201220307928 CN201220307928 CN 201220307928 CN 201220307928 U CN201220307928 U CN 201220307928U CN 202742769 U CN202742769 U CN 202742769U
- Authority
- CN
- China
- Prior art keywords
- polyester composite
- composite film
- solar cell
- extexine
- compound film
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
- Photovoltaic Devices (AREA)
Abstract
The utility model provides a polyester composite film for a solar battery back board. The polyester composite film comprises an outer surface layer and a middle film layer, wherein the outer surface layer is coated on the upper surface and lower surface of the middle film layer; and the outer surface layer is made from poly-p-naphthalene glycol terephthalate, and the middle film layer is made from polyethylene glycol terephthalate. The polyester composite film provided by the utility model has excellent weathering resistance, higher barrier property and outstanding hydrolysis resistance. The polyester composite film can be used as a solar back board, and can also be used in other occasions with higher requirements for weathering resistance and barrier property.
Description
Technical field
The utility model relates to a kind of solar cell backboard polyester compound film.
Background technology
The non-renewable resources such as traditional energy such as oil, coal reduce day by day, and energy problem becomes the bottleneck of restriction countries in the world socio-economic development day by day, and the whole world also has 2,000,000,000 people to can not get normal energy supply, and therefore seeking new forms of energy becomes the task of top priority.In this time, the whole world has all been invested regenerative resource to sight, wishes that regenerative resource can change human energy resource structure, keeps long-range sustainable development.Solar energy forms the focus of paying attention to into people with its exclusive advantage, and abundant solar radiant energy is the important energy, and is inexhaustible, nexhaustible and pollution-free.
Solar cell prepares through lamination for low iron safety glass, silicon chip, EVA glue and backboard.Because solar cell is directly exposed in the air, be vulnerable to the erosion of steam, sour gas, the gentle ultraviolet ray of height etc., cause its photoelectric conversion performance degradation, so the protective effect of solar cell backboard is very important, research is also highly significant.The present in the world main supplier of solar cell backboard and the SFC of TPT, the BBF of 3M company, Japanese Solar PET and Korea S that product has Du Pont etc.Back board structure commonly used is TPT and TPE type, wherein P is PET (polyester), T is the fluoroplastics film, E is generally PE or EVA, this class backboard is had relatively high expectations to the performances such as hydrolysis, uvioresistant and obstruct of PET film, and existing PET film performance in this respect is all undesirable on the market, and the top layer of such backboard is fluorine material, the fluorine material serious environment pollution, expensive.
The utility model content
The utility model provides a kind of hydrolysis, uvioresistant and barrier property good, and not fluorine-containing solar cell backboard polyester compound film.
Solar cell backboard described in the utility model comprises extexine and middle rete with polyester compound film, the upper and lower surface of rete in the middle of extexine is overlying on; Extexine be poly-to how the dioctyl phthalate glycol ester, middle rete is PETG.
Provide weatherability and resistant to hydrolysis performance by poly-to the extexine how the dioctyl phthalate glycol ester forms; The middle rete that is comprised of ethylene glycol terephthalate is provided as weatherability and barrier property.
Solar cell backboard described in the utility model is 25 ~ 300um with the thickness of polyester film, and wherein the intermediate coat layer thickness is 15 ~ 240um.
The utility model employed poly-to how the intrinsic viscosity of dioctyl phthalate glycol ester at 0.5 ~ 0.8dl/g, preferred 0.57 ~ 0.75dl/g.
The intrinsic viscosity of the employed PETG of the utility model is at 0.6 ~ 1.2 dl/g, preferred 0.67 ~ 0.85dl/g.
Can in the PETG layer, add the auxiliary agents such as hydrolysis-resisting agent, antioxidant, ultraviolet absorber.
The color of polyester compound film described in the utility model is transparent, milky white, white or black.
The utility model also provides the preparation technology of a kind of solar cell backboard with polyester film, comprising:
1) with PETG and poly-to how the dioctyl phthalate glycol ester is according to a certain percentage by after the high-speed mixer mixing, extruding pelletization;
2) respectively just the PETG powder is with after pigment, hydrolysis-resisting agent, antioxidant, ultraviolet absorber and other auxiliary agents mix by high-speed mixer, and extruding pelletization prepares masterbatch;
3) go out film forming with above-mentioned raw materials is three-layer co-extruded under 260 ~ 290 ℃ temperature according to a certain ratio, then carry out simultaneously the stretching of vertical and horizontal under 80～120 ℃ temperature, rear thermal finalization namely makes the solar cell backboard polyester film.
The characteristics such as solar cell backboard described in the utility model is simple with the preparation method of polyester compound film, have good weatherability, resistant to hydrolysis, barrier property are outstanding, environmental friendliness are desirable solar cell backboard films.
Description of drawings
Fig. 1 is the structural representation that solar cell backboard described in the utility model is used composite membrane.
Among the figure: 1, extexine; 2, middle rete.
The specific embodiment
Below in conjunction with specific embodiment the utility model is described further, but protection domain of the present utility model is not limited in this.
Embodiment 1
A kind of solar cell backboard polyester compound film comprises extexine 1 and middle rete 2, the upper and lower surface of rete 2 in the middle of extexine 1 is overlying on; Extexine 1 be poly-to how the dioctyl phthalate glycol ester, middle rete 2 is PETG.
The gross thickness of composite membrane is 350 μ m, and the thickness of extexine 1 is 35 μ m, and the thickness of middle rete 2 is 280 μ m.
A kind of solar cell backboard polyester compound film comprises extexine 1 and middle rete 2, the upper and lower surface of rete 2 in the middle of extexine 1 is overlying on; Extexine 1 be poly-to how the dioctyl phthalate glycol ester, middle rete 2 is PETG.
The gross thickness of composite membrane is 250 μ m, and the thickness of extexine 1 is 25 μ m, and the thickness of middle rete is 200 μ m.
The solar energy backboard of embodiment 1, embodiment 2 is as follows with the measured performance of polyester film:
Claims (3)
1. solar cell backboard polyester compound film, it is characterized in that: this polyester compound film comprises extexine (1) and middle rete (2), the upper and lower surface of rete (2) in the middle of extexine (1) is overlying on; Extexine (1) be poly-to how the dioctyl phthalate glycol ester, middle rete (2) is PETG.
2. solar cell backboard polyester compound film according to claim 1, it is characterized in that: the thickness of described polyester compound film is 25～350um, wherein in the middle of rete (2) thickness be 15～280um.
3. solar cell backboard polyester compound film according to claim 1 is characterized in that: the color of described polyester compound film is transparent, milky white, white or black.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220307928 CN202742769U (en) | 2012-06-28 | 2012-06-28 | Polyester composite film for solar battery back board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220307928 CN202742769U (en) | 2012-06-28 | 2012-06-28 | Polyester composite film for solar battery back board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202742769U true CN202742769U (en) | 2013-02-20 |
Family
ID=47702214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220307928 Expired - Fee Related CN202742769U (en) | 2012-06-28 | 2012-06-28 | Polyester composite film for solar battery back board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202742769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594537A (en) * | 2013-11-07 | 2014-02-19 | 南京兰埔成新材料有限公司 | Polyester solar cell backing plate film and preparation method thereof |
-
2012
- 2012-06-28 CN CN 201220307928 patent/CN202742769U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594537A (en) * | 2013-11-07 | 2014-02-19 | 南京兰埔成新材料有限公司 | Polyester solar cell backing plate film and preparation method thereof |
| CN103594537B (en) * | 2013-11-07 | 2017-02-08 | 南京兰埔成新材料有限公司 | Polyester solar cell backing plate film and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20120048375A1 (en) | Film used for solar cell module and module thereof | |
| CN103594537A (en) | Polyester solar cell backing plate film and preparation method thereof | |
| CN102529266A (en) | Fluoro-ethylene polymer (FPE) membrane for solar battery rear panel and preparation method thereof | |
| CN105633186B (en) | High heat conduction type backboard used for solar batteries and preparation method thereof | |
| CN106626645B (en) | A kind of solar cell backboard and preparation method thereof | |
| CN205050854U (en) | Silver color solar cell back sheet and subassembly thereof | |
| CN102632611B (en) | Solar cell packaging glue film | |
| CN102931262B (en) | A kind of transparent solar cell notacoria | |
| CN202513170U (en) | High transparency conductive film glass for thin film solar battery | |
| CN103137732B (en) | A kind of solar cell backboard and a kind of solar module | |
| CN202742769U (en) | Polyester composite film for solar battery back board | |
| CN101817245B (en) | Solar cell pack | |
| CN203826402U (en) | Transparent solar cell backboard and solar cell assembly | |
| CN102412314A (en) | Weather-proof antireflection coated glass for packaging solar cell | |
| CN204303833U (en) | Solar cell backboard | |
| CN210073876U (en) | Color photovoltaic module | |
| CN204303835U (en) | Solar cell backboard | |
| CN102270667A (en) | Component for increasing power generation efficiency of N-type monocrystalline silicon photovoltaic cell and manufacturing method thereof | |
| CN202513161U (en) | Ultra clear float glass used for crystalline photovoltaic cell assembly packaging | |
| CN202487586U (en) | Colored solar module | |
| CN204303840U (en) | Solar cell backboard | |
| CN101295738B (en) | Film and manufacturing method thereof, solar battery with the same | |
| CN105576064B (en) | One kind is without glue transparent solar cell backboard | |
| CN102544151A (en) | Novel E film for solar backboard | |
| CN202917523U (en) | Rear panel for packaging of thin-film solar cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20170628 |