CN103832034A - Three-layer-structured PET (polythylene terephthalate) composite membrane for packaging photovoltaic module and preparation method of three-layer-structured PET composite membrane - Google Patents
Three-layer-structured PET (polythylene terephthalate) composite membrane for packaging photovoltaic module and preparation method of three-layer-structured PET composite membrane Download PDFInfo
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- CN103832034A CN103832034A CN201410082035.4A CN201410082035A CN103832034A CN 103832034 A CN103832034 A CN 103832034A CN 201410082035 A CN201410082035 A CN 201410082035A CN 103832034 A CN103832034 A CN 103832034A
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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 discloses a three-layer-structured PET (polythylene terephthalate) composite membrane for encapsulating a photovoltaic module and a preparation method of the three-layer-structured PET composite membrane. The preparation method mainly comprises the steps of carrying out melt extrusion on functional flame-retardant EVA/POE (ethylene vinyl acetate/polyoxyethylene) resin modified by an antioxidant, and laminating and compositing the functional flame-retardant EVA/POE resin at two faces of a PET substrate membrane, so as to obtain a three-layer-structured (EVA and POE)/PET/(EVA and POE) composite membrane. The composite membrane is simple in machining process and low in cost, has excellent fire resistance and mechanical properties, good barrier property, thermal stability, electrical insulating property and ageing resistance, can be directly taken as a connecting layer for bonding a backboard with a battery piece and has a potential application prospect on photovoltaic module encapsulating materials.
Description
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Technical field
The present invention relates to laminated film technical field, specifically refer to a kind of PET composite membrane for photovoltaic component encapsulating with three-decker and preparation method thereof.
Background technology
Along with people more and more pay attention to awareness of safety, especially fire resistance is had higher requirement, therefore, by giving photovoltaic back film high-grade fire resistance, the development of photovoltaic industry is significant.Solar cell uses for a long time under hot environment, and through the phenomenon of long-term direct projection meeting generation backboard burning, therefore other composite membrane of flame retardant grade is widely used at photovoltaic industry.
At present, polyolefin elastomer (polyolefin elastomer) is (POE) thermoplastic elastomer (TPE) with narrow molecular weight distribution and uniformly short-chain branch distribution of DOW chemical company of the U.S. taking metallocene as catalyst.High and single being uniformly distributed of its comonomer octene content, narrow molecular weight distribution, these characteristics have given POE resin good material property.In POE molecular resin, do not contain unsaturated double-bond, the toughness with good heat endurance, weatherability, resistance to ag(e)ing, brilliance has good processability simultaneously.EVA glued membrane is the material that is mainly used at present encapsulating solar cell, but it comes with some shortcomings, and as aging in easy xanthochromia, weatherability is poor, service life is short.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provide a kind of processing technology simple, cost is low, there is good anti-flammability and mechanical property, and good barrier, heat resistance, electrical insulating property and resistance to ag(e)ing, and long service life has the PET composite membrane of three-decker for photovoltaic component encapsulating.
The present invention also provides a kind of preparation method for photovoltaic component encapsulating with the PET composite membrane of three-decker.
To achieve these goals, a kind of PET composite membrane for photovoltaic component encapsulating with three-decker of the present invention, this composite membrane carries out pressing by modified EVA/POE film with the two sides of the PET base material film of crossing through sided corona treatment and is composited; Described modified EVA/POE film is mixed to get as 100:0.1 ~ 1 taking mass ratio jointly by fire-retardant EVA/POE resin and antioxidant; Described fire-retardant EVA/POE resin is mixed taking mass ratio as 1-5:1 by fire-retardant EVA resin and POE resin.
Optimally, described PET base material film thickness is 15 μ m-30 μ m; Modified EVA/POE film thickness is 5 μ m-10 μ m.
Optimally, described antioxidant is phosphorous acid bisphenol-A ester or tris phosphite.
A preparation method for photovoltaic component encapsulating with the PET composite membrane of three-decker, it mainly comprises the following steps:
(1) respectively EVA resin, POE resin are mixed through high speed mixer with mass ratio 100:0.1 ~ 1 with antioxidant solution, then, by baking oven dry out solvent at 40-60 ° of C temperature, obtain modified EVA/POE resin;
(2) PET base material film is through low-temperature plasma Corona Surface Treatment;
(3) modified EVA/POE resin step (1) being obtained is melt extruded and is obtained modified EVA/POE film by extruder, to carry out pressing through the two sides of the PET of Corona Surface Treatment base material film compound with step (2) again, obtains the laminated film of (EVA & POE)/PET/ (EVA & POE) three-decker.
Optimally, the EVA resin described in step (1) is fire-retardant EVA resin, and the mixing quality ratio of fire-retardant EVA resin and POE resin is 1 ~ 5:1.
Optimally, the antioxidant described in step (1) is phosphorous acid bisphenol-A ester or tris phosphite.
Optimally, described fire-retardant EVA particle is mixed to get by common EVA particle and fire-retardant EVA master batch, and mixed proportion is 1 ~ 2:10, then, extruding pelletization mixing by double screw extruder with common EVA particle obtains.
Optimally, described fire-retardant EVA master batch is dried 0.5-1.5 h by hydroxide fire retardant and synergistic fire retardant with the ratio of 5 ~ 8:1 in 70 ~ 90 oC baking ovens, after proceed in mixing roll, add again 0.5-2% coupling agent to carry out modification, then be that mixing by double screw extruder with common EVA particle after mixing 0.5-1.5h under 80-120oC, extruding pelletization obtains in temperature.
Optimally, described hydroxide fire retardant is flame retardant of magnesium hydroxide, and described synergistic fire retardant is organic silicon fibre retardant, and described coupling agent is titanate coupling agent or silane coupler.
Beneficial effect of the present invention is:
Compared with prior art, it is of the present invention that to have the PET composite membrane processing technology of three-decker for photovoltaic component encapsulating simple, cost is low, there is good anti-flammability and mechanical property, and good barrier, heat resistance, electrical insulating property and resistance to ag(e)ing, can, directly as the articulamentum of bonding backboard and cell piece, there is potential application as photovoltaic component encapsulating material.
Detailed description of the invention
Embodiment 1:
A kind of PET composite membrane for photovoltaic component encapsulating with three-decker of the present invention, this composite membrane carries out pressing by the two sides of the PET base material film of modified EVA/POE film and sided corona treatment and is composited.
A preparation method for photovoltaic component encapsulating with the PET composite membrane of three-decker, it mainly comprises the following steps:
(1) modified EVA/POE resin is standby: respectively EVA resin, POE resin are mixed through high speed mixer with mass ratio 100:0.1 with phosphorous acid bisphenol-A ester solution, then through 50 ° of C oven for drying solvents;
(2) PET base material film surface preparation: PET base material film carries out surface treatment through corona and AC agent primary coat, the cohesive force of increase base material and composite bed;
(3) PET base material film and modification POE glued membrane are compound: modified EVA/POE resin that step (1) is obtained is melt extruded and obtained EVA/POE film by extruder, to carry out pressing through the two sides of corona, primary coat surface-treated PET base material film compound with step (2) again, finally pass through ozone Oxidation Treatment, the peel strength that further strengthens base material and composite bed, obtains (EVA & POE)/PET/ (EVA & POE) laminated film.
Wherein the EVA resin described in step (1) is fire-retardant EVA resin, and the mixing quality of fire-retardant EVA resin and POE resin is than being 1:1; Described fire-retardant EVA particle is mixed to get by common EVA particle and fire-retardant EVA master batch, and mixing quality is than for 1:10, then, extruding pelletization mixing by double screw extruder with common EVA particle obtains; Described fire-retardant EVA master batch is dry 0.5 h in 70oC baking oven of the ratio taking quality as 5:1 by flame retardant of magnesium hydroxide and organic silicon fibre retardant, after proceed in mixing roll, add again 0.5% titanate coupling agent to carry out modification, then be that mixing by double screw extruder with common EVA particle after mixing 0.5h under 80oC, extruding pelletization obtains in temperature.
Embodiment 2:
A kind of PET composite membrane for photovoltaic component encapsulating with three-decker of the present invention, this composite membrane carries out pressing by the two sides of the PET base material film of modified EVA/POE film and sided corona treatment and is composited.
A preparation method for photovoltaic component encapsulating with the PET composite membrane of three-decker, it mainly comprises the following steps:
(1) modified EVA/POE resin is standby: respectively EVA resin, POE resin are mixed to then dry out solvent through high speed mixer with mass ratio 100:0.5 with phosphorous acid bisphenol-A ester solution;
(2) PET base material film surface preparation: PET base material film, through low-temperature plasma Corona Surface Treatment and AC agent primary coat, increases the cohesive force of base material and composite bed;
(3) PET base material film and modification POE glued membrane are compound: modified EVA/POE resin that step (1) is obtained is melt extruded and obtained EVA/POE film by extruder, to carry out pressing through the two sides of corona, primary coat surface-treated PET base material film compound with step (2) again, finally pass through ozone Oxidation Treatment, further strengthen the peel strength of base material and composite bed,, obtain (EVA & POE)/PET/ (EVA & POE) laminated film.
Wherein the EVA resin described in step (1) is fire-retardant EVA resin, and the mixing quality of fire-retardant EVA resin and POE resin is than being 3:1; Described fire-retardant EVA particle is mixed to get by common EVA particle and fire-retardant EVA master batch, and mixing quality is than for 1.5:10, then, extruding pelletization mixing by double screw extruder with common EVA particle obtains; Described fire-retardant EVA master batch is dry 1 h in 80oC baking oven of the ratio taking quality as 7:1 by flame retardant of magnesium hydroxide and organic silicon fibre retardant, after proceed in mixing roll, add again 1% titanate coupling agent to carry out modification, then be that mixing by double screw extruder with common EVA particle after mixing 1h under 100oC, extruding pelletization obtains in temperature.
Embodiment 3:
A kind of PET composite membrane for photovoltaic component encapsulating with three-decker of the present invention, this composite membrane carries out pressing by the two sides of the PET base material film of modified EVA/POE film and sided corona treatment and is composited.
A preparation method for photovoltaic component encapsulating with the PET composite membrane of three-decker, it mainly comprises the following steps:
(1) modified EVA/POE resin is standby: respectively by EVA resin, POE resin and phosphorous acid bisphenol-A ester solution with the mixing through high speed mixer of mass ratio 100:1, then dry out solvent;
(2) PET base material film surface preparation: PET base material film is through low-temperature plasma Corona Surface Treatment
With AC agent primary coat, increase the cohesive force of base material and composite bed;
(3) PET base material film and modification POE glued membrane are compound: modified EVA/POE resin that step (1) is obtained is melt extruded and obtained EVA/POE film by extruder, to carry out pressing through the two sides of corona, primary coat surface-treated PET base material film compound with step (2) again, finally pass through ozone Oxidation Treatment, the peel strength that further strengthens base material and composite bed, obtains (EVA & POE)/PET/ (EVA & POE) laminated film.
Wherein the EVA resin described in step (1) is fire-retardant EVA resin, and the mixing quality of fire-retardant EVA resin and POE resin is than being 5:1; Described fire-retardant EVA particle is mixed to get by common EVA particle and fire-retardant EVA master batch, and mixing quality is than for 2:10, then, extruding pelletization mixing by double screw extruder with common EVA particle obtains; Described fire-retardant EVA master batch is dry 1.5 h in 90oC baking oven of the ratio taking quality as 8:1 by aluminium hydroxide fire retardant and organic silicon fibre retardant, after proceed in mixing roll, add again 2% titanate coupling agent to carry out modification, then be that mixing by double screw extruder with common EVA particle after mixing 1.5h under 120oC, extruding pelletization obtains in temperature.
The invention provides a kind of thinking and method for photovoltaic component encapsulating with PET composite membrane of three-decker and preparation method thereof, method and the approach of this technical scheme of specific implementation are a lot, and the above is only the preferred embodiment of the present invention.
Claims (9)
1. a PET composite membrane for photovoltaic component encapsulating with three-decker, is characterized in that, this composite membrane carries out pressing by modified EVA/POE film with the two sides of the PET base material film of crossing through sided corona treatment and is composited; Described modified EVA/POE film is mixed to get as 100:0.1 ~ 1 taking mass ratio jointly by fire-retardant EVA/POE resin and antioxidant; Described fire-retardant EVA/POE resin is mixed taking mass ratio as 1-5:1 by fire-retardant EVA resin and POE resin.
2. the PET composite membrane for photovoltaic component encapsulating with three-decker according to claim 1, is characterized in that, described PET base material film thickness is 15 um-30 um; Modified EVA/POE film thickness is 5 um-10 um.
3. the PET composite membrane for photovoltaic component encapsulating with three-decker according to claim 1, is characterized in that, described antioxidant is phosphorous acid bisphenol-A ester or tris phosphite.
4. as described in claim 1-3, there is the preparation method of the PET composite membrane of three-decker for photovoltaic component encapsulating, it is characterized in that: it mainly comprises the following steps:
(1) EVA resin, POE resin are mixed through high speed mixer with mass ratio 100:0.1 ~ 1 with antioxidant solution, then, by baking oven dry out solvent at 40-60 ° of C temperature, obtain modified EVA/POE resin;
(2) PET base material film is through low-temperature plasma Corona Surface Treatment;
(3) modified EVA/POE resin step (1) being obtained is melt extruded and is obtained modified EVA/POE film by extruder, then to carry out pressing through the two sides of the PET of Corona Surface Treatment base material film compound with step (2), obtains the laminated film of three-decker.
5. the preparation method for photovoltaic component encapsulating with the PET composite membrane of three-decker according to claim 4, it is characterized in that, wherein the EVA resin described in step (1) is fire-retardant EVA resin, and the mixing quality ratio of fire-retardant EVA resin and POE resin is 1 ~ 5:1.
6. the preparation method for photovoltaic component encapsulating with the PET composite membrane of three-decker according to claim 4, is characterized in that, the antioxidant described in step (1) is phosphorous acid bisphenol-A ester or tris phosphite.
7. the preparation method for photovoltaic component encapsulating with the PET composite membrane of three-decker according to claim 5; it is characterized in that; described fire-retardant EVA particle is mixed to get by common EVA particle and fire-retardant EVA master batch; mixing quality ratio is 1 ~ 2:10, then, extruding pelletization mixing by double screw extruder with common EVA particle obtains.
8. the preparation method for photovoltaic component encapsulating with the PET composite membrane of three-decker according to claim 7, it is characterized in that, described fire-retardant EVA master batch is dried 0.5-1.5 h by hydroxide fire retardant and synergistic fire retardant with the ratio of 5 ~ 8:1 in 70 ~ 90 oC baking ovens, after proceed in mixing roll, add again 0.5-2% coupling agent to carry out modification, then be that mixing by double screw extruder with common EVA particle after mixing 0.5-1.5h under 80-120oC, extruding pelletization obtains in temperature.
9. the preparation method for photovoltaic component encapsulating with the PET composite membrane of three-decker according to claim 8, it is characterized in that, described hydroxide fire retardant is flame retardant of magnesium hydroxide, described synergistic fire retardant is organic silicon fibre retardant, and described coupling agent is titanate coupling agent or silane coupler.
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| CN201410082035.4A CN103832034B (en) | 2014-03-07 | 2014-03-07 | Three-layer-structured PET (polythylene terephthalate) composite membrane for packaging photovoltaic module and preparation method of three-layer-structured PET composite membrane |
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| CN201410082035.4A CN103832034B (en) | 2014-03-07 | 2014-03-07 | Three-layer-structured PET (polythylene terephthalate) composite membrane for packaging photovoltaic module and preparation method of three-layer-structured PET composite membrane |
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| CN103832034A true CN103832034A (en) | 2014-06-04 |
| CN103832034B CN103832034B (en) | 2017-01-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194021A (en) * | 2014-08-13 | 2014-12-10 | 苏州泰科尼光伏材料有限公司 | Production method and finished product of electrode insolating bar of solar battery module |
| CN106952978A (en) * | 2017-05-09 | 2017-07-14 | 无锡赛晶太阳能有限公司 | A kind of photovoltaic module |
| CN111378196A (en) * | 2018-12-29 | 2020-07-07 | 苏州高德辰光电科技有限公司 | Insulating strip for photovoltaic module, preparation method of insulating strip and photovoltaic module |
| CN112060730A (en) * | 2020-08-27 | 2020-12-11 | 上海春宜药品包装材料有限公司 | Environment-friendly hot-melt composite film and preparation method thereof |
Citations (2)
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| JP4917745B2 (en) * | 2004-08-17 | 2012-04-18 | ユニチカ株式会社 | High frequency substrate and manufacturing method thereof |
| CN102820356A (en) * | 2012-09-10 | 2012-12-12 | 浙江大学 | Rear panel composite membrane for solar cell |
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2014
- 2014-03-07 CN CN201410082035.4A patent/CN103832034B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4917745B2 (en) * | 2004-08-17 | 2012-04-18 | ユニチカ株式会社 | High frequency substrate and manufacturing method thereof |
| CN102820356A (en) * | 2012-09-10 | 2012-12-12 | 浙江大学 | Rear panel composite membrane for solar cell |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194021A (en) * | 2014-08-13 | 2014-12-10 | 苏州泰科尼光伏材料有限公司 | Production method and finished product of electrode insolating bar of solar battery module |
| CN104194021B (en) * | 2014-08-13 | 2017-03-29 | 苏州泰科尼光伏材料有限公司 | The production method and its manufactured goods of the electrode isolation bar of solaode module |
| CN106952978A (en) * | 2017-05-09 | 2017-07-14 | 无锡赛晶太阳能有限公司 | A kind of photovoltaic module |
| CN111378196A (en) * | 2018-12-29 | 2020-07-07 | 苏州高德辰光电科技有限公司 | Insulating strip for photovoltaic module, preparation method of insulating strip and photovoltaic module |
| CN112060730A (en) * | 2020-08-27 | 2020-12-11 | 上海春宜药品包装材料有限公司 | Environment-friendly hot-melt composite film and preparation method thereof |
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| CN103832034B (en) | 2017-01-25 |
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