CN107146824A - It is easy to the solar energy backboard PE films done over again - Google Patents
It is easy to the solar energy backboard PE films done over again Download PDFInfo
- Publication number
- CN107146824A CN107146824A CN201710207376.3A CN201710207376A CN107146824A CN 107146824 A CN107146824 A CN 107146824A CN 201710207376 A CN201710207376 A CN 201710207376A CN 107146824 A CN107146824 A CN 107146824A
- Authority
- CN
- China
- Prior art keywords
- layer
- solar energy
- films
- easy
- ldpe
- 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.)
- Granted
Links
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004698 Polyethylene Substances 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
- 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 11
- 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
- 239000000203 mixture Substances 0.000 claims abstract description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 7
- 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
- 230000003179 granulation Effects 0.000 claims description 4
- 238000005469 granulation Methods 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
- 239000008187 granular material Substances 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 230000007704 transition Effects 0.000 abstract description 2
- 239000004831 Hot glue Substances 0.000 abstract 1
- 238000003475 lamination Methods 0.000 description 6
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 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
- 239000003292 glue Substances 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- 230000015572 biosynthetic process 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
- 238000005516 engineering process Methods 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
- 230000035515 penetration Effects 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 241000446313 Lamella Species 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
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 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
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Laminated Bodies (AREA)
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 that the white master batches of LDPE and PE are blended；Centre is that LLDPE layers of its composition 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.The intensity that PE films of the present invention are easy to do over again and are 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 technology
Current solar energy backboard main flow is KPE three-layer composite structures, and wherein K is pvdf membrane, and P is PET film, and E is PE films.
Pvdf membrane directly plays ageing-resistant effect used in backboard outer layer with atmosphere, and PET film is that the supporting layer of backboard can be that backboard is carried
The effect passed through for aqueous vapor and other corrosive gas in necessary mechanical property and barrier air, PE films are used as the interior of backboard
Layer is in addition to iris action, and most important effect is to carry out lamination with PUR with solar battery sheet to be combined so that the back of the body
Plate can finally play the protection cell piece effect of 25 years.
Patent CN103642416A is prepared for a solar energy backboard PE films done over again, and it, which is depended on, used has
Machine opening agent, easily causes sided corona treatment difficult in surface aggregation, with the low problem of battery lamella Compressive Strength under the conditions of normality.
The content of the invention
Present invention seek to address that there is provided a kind of solar energy backboard PE films for being easy to do over again for drawbacks described above.
In order to overcome defect present in background technology, the technical solution adopted for the present invention to solve the technical problems is：
This solar energy backboard PE films for being easy to do over again include internal layer, intermediate layer and outer layer, it is characterised in that each layer composition is such as
Under：
Internal layer:LDPE :80-90 parts, white master batch 10-20 parts；
Intermediate 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, it is 10-20 microns to further comprise the internal layer, outer layer thickness, middle
Layer is 20-30 microns.
According to another embodiment of the invention, further comprise that the LDPE is less than 0.925g/cm for density3, 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 more than 0.945 g/cm3, preferred density is more than 0.95g/cm3。
According to another embodiment of the invention, it is rutile type titanium white, low molecule to further comprise the white master batch
Weight northylen wax and LDPE blendings granulation institute are into master batch, and wherein rutile type titanium white weight ratio is more than 60%.
According to another embodiment of the invention, it is improved silica, LDPE to further comprise the inorganic opening agent
Matrix resin blending granulation is formed.
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 invention are as follows：The HDPE fusing points of this solar energy backboard PE films for being easy to do over again are at 130 DEG C
More than.The HDPE partial meltings during heated lamination is carried out, can keep crystal region stability.In certain outer masterpiece
With lower amorphous and be easier motion hot melt xanthan molecule can partial penetration Semi-IPN structure is formed into HDPE top layers, after cooling by
In HDPE highly crystallines, molecular contraction rate is big, and hot melt xanthan molecule is to HDPE formation physics interlocking structures, so as to ensure that under normal temperature
The lamination strength of backboard.After heating again, PUR softens again, and intermolecular force dies down, and HDPE also has certain journey
The shape conservation rate of degree, in the presence of external force is applied, easily by it from PUR sur-face peeling.By locating between high temperature, short time
Reason, can show easily peelable function, facilitate cell piece to carry out defect and do over again replacing.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the present invention.
Embodiment
Solar energy backboard is three-layer co-extruded structure with PE films, including internal layer, intermediate layer and outer layer, each layer composition are as follows：
Internal layer:LDPE :80-90 parts, white master batch 10-20 parts；
Intermediate 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 intermediate layer is 20-30 microns.Each layer component adds corresponding after mixing respectively
Extruder, adjust the thickness of each layer film by controlling the speed 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 more than 0.945 g/cm3, preferred density is more than 0.95g/cm3。
White master batch is rutile type titanium white, low molecular weight polyethylene wax and LDPE blendings granulate institute into master batch, wherein
Rutile type titanium white weight ratio is more than 60%.
Inorganic opening agent is improved silica, the blending granulation of LDPE matrix resins is formed.
Each layer formula mixes the respective extruder hopper of addition respectively, is prepared using three-layer co-extruded blowing.
Three-layer co-extruded PE film internal layers tack coat as described above is relatively low using LDPE crystallinity, and compliance is good, and mixture
Titanium dioxide master batch, easily carries out sided corona treatment, and after compound with three layers of glue, its surface molecular can be relatively easy to along glue
Water cure shrinkage direction is moved, so as to keep the cohesive force with solidification glue water layer.
Intermediate layer transition zone LLDPE crystallinity is between internal layer and outer layer, if the crystallinity gap of two layers of ectonexine
It is excessive, the difference of shrinkage factor inside and outside film can be caused, so as to cause the automatic curled of film, this layer can play prevent film by
The bad curling produced in the difference of crystallinity.
External layer lamination layer HDPE molecules are intensive to be heaped, and crystallinity is higher, and fusing point is very high, using HDPE fusing points 130 DEG C with
On.The HDPE partial meltings during heated lamination is carried out, can keep crystal region stability.Acted in certain external force
Lower amorphous and be easier motion hot melt xanthan molecule can partial penetration Semi-IPN structure is formed into HDPE top layers, after cooling due to
HDPE highly crystallines, molecular contraction rate is big, and hot melt xanthan molecule is to HDPE formation physics interlocking structures, so as to ensure that normal temperature lower back
The lamination strength of plate.After heating again, PUR softens again, and intermolecular force dies down, and HDPE also has to a certain degree
Shape conservation rate, in the presence of external force is applied, easily by it from PUR sur-face peeling.
By being handled between high temperature, short time, easily peelable function can be shown, facilitates cell piece to carry out defect and does over again replacing.
Claims (6)
1. a kind of solar energy backboard PE films for being easy to do over again, including internal layer, intermediate layer and outer layer, it is characterised in that each layer
Composition is as follows：
Internal layer:LDPE :80-90 parts, white master batch 10-20 parts；
Intermediate 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.
2. the solar energy backboard PE films as claimed in claim 1 for being easy to do over again, it is characterised in that：The internal layer, outer layer
Thickness is 10-20 microns, and intermediate layer is 20-30 microns.
3. the solar energy backboard PE films as claimed in claim 1 for being easy to do over again, it is characterised in that：The LDPE is density
Less than 0.925g/cm3, LLDPE density is in 0.925-0.94 g/cm3Between, HDPE density is more than 0.945 g/cm3。
4. the solar energy backboard PE films as claimed in claim 1 for being easy to do over again, it is characterised in that：The white master batch is gold
Red stone-type titanium dioxide, low molecular weight polyethylene wax and LDPE blendings granulate institute into master batch, wherein rutile type titanium white weight
Than more than 60%.
5. the solar energy backboard PE films as claimed in claim 1 for being easy to do over again, it is characterised in that：The inorganic opening agent
Formed for improved silica, the blending granulation of LDPE matrix resins.
6. the solar energy backboard PE films as claimed in claim 1 for being easy to do over again, it is characterised in that：Each layer formula point
Respective extruder hopper Hun He not be added, is 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 true CN107146824A (en) | 2017-09-08 |
| CN107146824B 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021111761A (en) * | 2020-01-15 | 2021-08-02 | 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 |
| CN113675288A (en) * | 2021-08-16 | 2021-11-19 | 浙江中聚材料有限公司 | Photovoltaic module backboard sample piece and performance testing device thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004200322A (en) * | 2002-12-17 | 2004-07-15 | Dainippon Printing Co Ltd | Rear surface protective 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 |
| 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 |
-
2017
- 2017-03-31 CN CN201710207376.3A patent/CN107146824B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004200322A (en) * | 2002-12-17 | 2004-07-15 | Dainippon Printing Co Ltd | Rear surface protective 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 |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021111761A (en) * | 2020-01-15 | 2021-08-02 | 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 |
| CN113675288A (en) * | 2021-08-16 | 2021-11-19 | 浙江中聚材料有限公司 | Photovoltaic module backboard sample piece and performance testing device thereof |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107146824B (en) | 2019-11-05 |
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