CN107146824B - The solar energy backboard PE film for being easy to do over again - Google Patents
The solar energy backboard PE film for being easy to do over again Download PDFInfo
- Publication number
- CN107146824B CN107146824B CN201710207376.3A CN201710207376A CN107146824B CN 107146824 B CN107146824 B CN 107146824B CN 201710207376 A CN201710207376 A CN 201710207376A CN 107146824 B CN107146824 B CN 107146824B
- Authority
- CN
- China
- Prior art keywords
- layer
- ldpe
- solar energy
- easy
- parts
- 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.)
- Active
Links
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 21
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 21
- 239000004698 Polyethylene Substances 0.000 claims abstract description 18
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 15
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 15
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 12
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 9
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- 235000010215 titanium dioxide Nutrition 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 239000004831 Hot glue Substances 0.000 abstract description 6
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 230000007704 transition Effects 0.000 abstract description 2
- 239000004615 ingredient Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 42
- 238000003475 lamination Methods 0.000 description 5
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 description 4
- 239000012943 hotmelt Substances 0.000 description 4
- 229920001285 xanthan gum Polymers 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000003851 corona treatment Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 241000446313 Lamella Species 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009156 water cure Methods 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
- H01L31/04—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
Abstract
The present invention relates to the technical field of solar energy backboard more particularly to a kind of solar energy backboard PE films for being easy to do over again.Its structure is three layers compound: internal layer is the LDPE layer bonded with solar energy back plate support layer, is blended for LDPE with the white master batch of PE；Centre is that LLDPE layers of its ingredient of transition are LLDPE；Outer layer is the HDPE layer being laminated with battery component, and main component is that inorganic opening agent master batch is blended in HDPE.PE film of the present invention is easy to do over again and the intensity being laminated under the conditions of normality with cell piece EVA hot-melt adhesive piece is high.
Description
Technical field
The present invention relates to one kind more particularly to a kind of solar energy backboard PE films for being easy to do over again.
Background technique
Solar energy backboard mainstream is KPE three-layer composite structure at present, and wherein K is pvdf membrane, and P is PET film, and E is PE film.
Pvdf membrane, which is used in backboard outer layer and directly contacts with atmosphere, to be played the role of ageing-resistant, and PET film is that the supporting layer of backboard can be that backboard mentions
For the effect that aqueous vapor in necessary mechanical property and barrier atmosphere and other corrosive gas penetrate, PE film is used as the interior of backboard
Layer other than barrier action, it is most important effect be laminated with hot melt adhesive with solar battery sheet it is compound so that back
Plate can finally play protection cell piece effect in 25 years.
Patent CN103642416A is prepared for a solar energy backboard PE film done over again, and depending on used has
The problems such as machine opening agent is easy to cause sided corona treatment difficult in surface aggregation, low with battery lamella Compressive Strength under the conditions of normality.
Summary of the invention
Present invention seek to address that drawbacks described above, provides a kind of solar energy backboard PE film for being easy to do over again.
In order to overcome defect present in background technique, the technical solution adopted by the present invention to solve the technical problems is:
This solar energy backboard PE film for being easy to do over again includes internal layer, middle layer and outer layer, which is characterized in that each layer composition is such as
Under:
Internal layer: LDPE: 80-90 part, white master batch 10-20 parts；
Middle layer: LLDPE:70-90 parts, LDPE:10-30 parts；
Outer layer: HDPE:80-90 parts, LDPE:10-20 parts, inorganic opening agent: 2-5 parts.
According to another embodiment of the invention, further comprise the internal layer, outer layer thickness be 10-20 micron, centre
Layer is 20-30 microns.
According to another embodiment of the invention, further comprise the LDPE be density be less than 0.925g/cm3, preferably
Density is less than 0.92-0.925g/cm3；LLDPE density is in 0.925-0.94 g/cm3Between, preferred density is in 0.93-0.94g/
cm3；HDPE density is greater than 0.945 g/cm3, preferred density is greater than 0.95g/cm3。
According to another embodiment of the invention, further comprise the white master batch be rutile type titanium white, low molecule
Weight northylen wax and LDPE, which are blended, is granulated institute into master batch, and wherein rutile type titanium white weight ratio is greater than 60%.
According to another embodiment of the invention, further comprise the inorganic opening agent be improved silica, LDPE
Matrix resin blending is granulated.
It according to another embodiment of the invention, further comprise that each layer formula mixes the respective extruder of addition respectively
Hopper is prepared using three-layer co-extruded blowing.
The beneficial effects of the present invention are: the HDPE fusing point of this solar energy backboard PE film for being easy to do over again is at 130 DEG C
More than.HDPE partial melting during carrying out heated lamination, can keep crystal region stability.In certain outer masterpiece
With lower amorphous and be easier movement hot melt xanthan molecule can partial penetration Semi-IPN structure is formed into the surface layer HDPE, after cooling by
In HDPE highly crystalline, molecular contraction rate is big, and hot melt xanthan molecule forms physics interlocking structure to HDPE, to ensure that under room temperature
The lamination strength of backboard.After heating again, hot melt adhesive softens again, and intermolecular force dies down, and HDPE also has certain journey
The shape conservation rate of degree is easy it under the action of applying external force from hot melt adhesive sur-face peeling.By between high temperature, short time
Reason can express easily peelable function, facilitates cell piece to carry out defect and does over again replacement.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
Solar energy backboard is three-layer co-extruded structure with PE film, including internal layer, middle layer and outer layer, each layer composition be as follows:
Internal layer: LDPE: 80-90 part, white master batch 10-20 parts；
Middle layer: LLDPE:70-90 parts, LDPE:10-30 parts；
Outer layer: HDPE:80-90 parts, LDPE:10-20 parts, inorganic opening agent: 2-5 parts.
Internal layer, outer layer thickness are 10-20 microns, and middle layer is 20-30 microns.Each layer component is added corresponding after mixing respectively
Extruder, adjust the thickness of each layer film by controlling the rate of each extruder.
LDPE is that density is less than 0.925g/cm3, preferred density is less than 0.92-0.925g/cm3；
LLDPE density is in 0.925-0.94 g/cm3Between, preferred density is in 0.93-0.94g/cm3；
HDPE density is greater than 0.945 g/cm3, preferred density is greater than 0.95g/cm3。
White master batch is rutile type titanium white, low molecular weight polyethylene wax and LDPE are blended and are granulated institute into master batch, wherein
Rutile type titanium white weight ratio is greater than 60%.
Inorganic opening agent is improved silica, the blending of LDPE matrix resin is granulated.
Each layer formula mixes respectively is added respective extruder hopper, is prepared using three-layer co-extruded blowing.
Three-layer co-extruded PE film internal layer adhesive layer as described above is lower using LDPE crystallinity, and flexibility is good, and mixture
Titanium dioxide master batch is easy to carry out sided corona treatment, and after compound with three layers of glue, surface molecular can be relatively easy to along glue
Water cure shrinkage direction movement, to keep the cohesive force with solidification glue water layer.
Middle layer transition zone LLDPE crystallinity is between internal layer and outer layer, if two layers of ectonexine of crystallinity gap
It is excessive, will lead to the difference of shrinking percentage inside and outside film, so as to cause the automatic curled of film, this layer can play prevent film by
In crystallinity difference and the bad curling that generates.
External layer lamination layer HDPE molecule intensively heaps, and crystallinity is higher, and fusing point is very high, using HDPE fusing point 130 DEG C with
On.HDPE partial melting during carrying out heated lamination, can keep crystal region stability.In certain external force
Lower amorphous and be easier movement hot melt xanthan molecule can partial penetration Semi-IPN structure is formed into the surface layer HDPE, after cooling due to
HDPE highly crystalline, molecular contraction rate is big, and hot melt xanthan molecule forms physics interlocking structure to HDPE, to ensure that room temperature lower back
The lamination strength of plate.After heating again, hot melt adhesive softens again, and intermolecular force dies down, and HDPE also has to a certain degree
Shape conservation rate be easy it under the action of applying external force from hot melt adhesive sur-face peeling.
It by handling between high temperature, short time, can express easily peelable function, facilitate cell piece to carry out defect and do over again replacement.
Claims (3)
1. a kind of solar energy backboard PE film for being easy to do over again, including internal layer, middle layer and outer layer, which is characterized in that each layer
Composition is as follows:
Internal layer: LDPE: 80-90 part, white master batch 10-20 parts；
Middle layer: LLDPE:70-90 parts, LDPE:10-30 parts；
Outer layer: HDPE:80-90 parts, LDPE:10-20 parts, inorganic opening agent: 2-5 parts；
The LDPE is that density is less than 0.925g/cm3, and between 0.925-0.94 g/cm3, HDPE density is greater than LLDPE density
0.945 g/cm3；
The white master batch is rutile type titanium white, low molecular weight polyethylene wax and LDPE are blended and are granulated institute into master batch, wherein
Rutile type titanium white weight ratio is greater than 60%；
The inorganic opening agent is improved silica, the blending of LDPE matrix resin is granulated.
2. the solar energy backboard PE film for being easy to do over again as described in claim 1, it is characterised in that: the internal layer, outer layer
With a thickness of 10-20 microns, middle layer is 20-30 microns.
3. the solar energy backboard PE film for being easy to do over again as described in claim 1, it is characterised in that: each layer formula point
Respective extruder hopper Hun He not be added, prepared using three-layer co-extruded blowing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710207376.3A CN107146824B (en) | 2017-03-31 | 2017-03-31 | The solar energy backboard PE film for being easy to do over again |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710207376.3A CN107146824B (en) | 2017-03-31 | 2017-03-31 | The solar energy backboard PE film for being easy to do over again |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107146824A CN107146824A (en) | 2017-09-08 |
| CN107146824B true CN107146824B (en) | 2019-11-05 |
Family
ID=59783986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710207376.3A Active CN107146824B (en) | 2017-03-31 | 2017-03-31 | The solar energy backboard PE film for being easy to do over again |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107146824B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6881620B1 (en) * | 2020-01-15 | 2021-06-02 | 大日本印刷株式会社 | Backside protective sheet for solar cell module, backside protective sheet roll body and solar cell module |
| CN113675288B (en) * | 2021-08-16 | 2023-11-17 | 浙江中聚材料有限公司 | Photovoltaic module backboard sample piece and performance testing device thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480861A (en) * | 2009-01-23 | 2009-07-15 | 石狮市新光塑料包装有限公司 | Novel PE film |
| CN104842616A (en) * | 2015-04-10 | 2015-08-19 | 苏州中来光伏新材股份有限公司 | Photovoltaic solar cell composite backboard, preparation method and assembly thereof |
| CN105870237A (en) * | 2016-04-18 | 2016-08-17 | 苏州赛伍应用技术有限公司 | Co-extruded one-time formed backplate with three-layer structure for solar cell module |
| CN106279904A (en) * | 2016-08-18 | 2017-01-04 | 苏州度辰新材料有限公司 | A kind of extrusion type solar energy backboard and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4303951B2 (en) * | 2002-12-17 | 2009-07-29 | 大日本印刷株式会社 | Back surface protection sheet for solar cell module and solar cell module using the same |
| US20040202866A1 (en) * | 2003-04-11 | 2004-10-14 | Kernander Carl P. | Bright white protective laminates |
-
2017
- 2017-03-31 CN CN201710207376.3A patent/CN107146824B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480861A (en) * | 2009-01-23 | 2009-07-15 | 石狮市新光塑料包装有限公司 | Novel PE film |
| CN104842616A (en) * | 2015-04-10 | 2015-08-19 | 苏州中来光伏新材股份有限公司 | Photovoltaic solar cell composite backboard, preparation method and assembly thereof |
| CN105870237A (en) * | 2016-04-18 | 2016-08-17 | 苏州赛伍应用技术有限公司 | Co-extruded one-time formed backplate with three-layer structure for solar cell module |
| CN106279904A (en) * | 2016-08-18 | 2017-01-04 | 苏州度辰新材料有限公司 | A kind of extrusion type solar energy backboard and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107146824A (en) | 2017-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5734569B2 (en) | SOLAR CELL BACK SHEET, MANUFACTURING METHOD THEREOF, AND SOLAR CELL MODULE | |
| CN103443933B (en) | Backboard used for solar batteries and manufacture method thereof and solar module | |
| CN105934831B (en) | The solar cell backboard and its manufacture method of wet-heat resisting | |
| CN101638159B (en) | Liquid packaging composite film and manufacturing method thereof | |
| CN107146824B (en) | The solar energy backboard PE film for being easy to do over again | |
| TW201221571A (en) | Covering film for solar cell and solar cell module made using same | |
| TW201329214A (en) | Resin-sealing sheet | |
| CN101890830A (en) | The polyester film of biaxial orientation with coextrusion of improved bond properties is used for the rear laminates and the solar energy module of solar energy module | |
| CN105646995A (en) | Snail track resistant packaging adhesive film and preparation method thereof | |
| CN107841029B (en) | High-weather-resistance PE (polyethylene) film for solar cell back plate | |
| CN105856762A (en) | Solar battery backboard and production technology thereof | |
| CN105538846B (en) | A kind of PE laminated films and preparation method thereof and the solar energy backboard comprising the film | |
| CN103642416B (en) | Be easy to the PE laminated film that sun power backboard repeats to process | |
| CN109337598A (en) | A kind of digital pre-laminating film and preparation method thereof | |
| CN108485159A (en) | A kind of preparation method of the low saturating polyolefin film raw material of water of high temperature resistant | |
| JP5895661B2 (en) | Back surface protection sheet for solar cell module and solar cell module | |
| CN105348834B (en) | A kind of auxiliary material for being used to bond between macromolecule and modified bituminous pitch coiled material | |
| CN106147634A (en) | A kind of three-layer co-extruded blown film glued membrane and preparation technology thereof | |
| CN109473498A (en) | Integrated backboard of a kind of encapsulation and preparation method thereof | |
| CN107081947A (en) | A kind of waterproof ventilated membrane | |
| CN102443240A (en) | High elastic waterproof cloth material and its manufacturing method | |
| JP2012222227A (en) | Back sheet for solar cells, laminated body for the solar cells, solar cell module, and manufacturing methods of the back sheet, the laminated body, and the solar cell module | |
| CN106079772B (en) | Cover strip and its production method | |
| CN103681920B (en) | A kind of solar cell backboard and manufacture method thereof | |
| WO2015125666A1 (en) | Multilayer film, back sheet for solar cell modules, and solar cell module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |