CN102569462A - Plasma modified all-polyester solar cell back film and production process thereof - Google Patents
Plasma modified all-polyester solar cell back film and production process thereof Download PDFInfo
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- CN102569462A CN102569462A CN2012100290842A CN201210029084A CN102569462A CN 102569462 A CN102569462 A CN 102569462A CN 2012100290842 A CN2012100290842 A CN 2012100290842A CN 201210029084 A CN201210029084 A CN 201210029084A CN 102569462 A CN102569462 A CN 102569462A
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Abstract
The invention relates to a plasma modified all-polyester solar cell back film and a production process thereof. The production process is characterized by comprising the following process steps of: (1) processing one surface of first high weather resistant PET (polyethylene terephthalate) for 0.1-2 seconds and forming a grafting layer on the one surface of the first high weather resistant PET; (2) compounding the other surface of the first high weather resistant PET with one surface of a PET base material by a binding material to obtain a first high weather resistant PET layer and carrying out primary curing at 40-60 DEG C for 1-3 days, wherein the compounding pressure is 3-10Kgf; and (3) compounding the other surface of the PET base material with second high weather resistant PET by the binding material to obtain a second high weather resistant PET layer and curing at 40-60 DEG C for 3-10 days, wherein the compounding pressure is 3-10Kgf. The plasma modified all-polyester solar cell back film and the production process thereof have the advantages that a multiple ammonia plasma processing technology is adopted; the excellent hydrophilic property is given to a material; the durable high cohesiveness of the back film to EVA (ethylene-vinyl acetate) when the back film is applied to a solar cell is revolutionarily implemented; and the cost of the complete back film is reduced.
Description
Technical field
The present invention relates to a kind of solar cell notacoria, especially a kind of plasma modification whole polyester solar cell notacoria and production technology thereof.
Background technology
Present domestic crystal silicon solar battery component package mainly contains two types of multiple membranous type (weathering layer material etc. is bonded through glue with base material) and application types (on base material, directly applying one deck fluorine-containing coat) with notacoria; The weathering layer of these two types of notacorias all contains the fluorine material; And this patent notacoria is a fluorine material not; And adopt many ammonia bulk plasmon treatment technology as the surface (near the surface of EVA) of internal layer weathering layer PET material; Give material excellent hydrophilicity, the revolutionary notacoria of having realized is when solar cell application and the lasting high-adhesion of EVA.Guarantee not stratified lastingly through after the processing of battery component heat lamination of notacoria and EVA, thereby guaranteed the long-term serviceability of notacoria.Simultaneously, because this notacoria does not adopt fluorine material, therefore certain reduction is being arranged aspect the whole cost.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the prior art, a kind of plasma modification whole polyester solar cell notacoria and production technology thereof are provided, give notacoria excellent hydrophilicity, reduce cost.
According to technical scheme provided by the invention; A kind of plasma modification whole polyester solar cell notacoria; Comprise the PET base material; Characteristic is: the one side at said PET base material is provided with Yi Gao Naihou pet layer, at the another side of PET base material Er Gao Naihou pet layer is set, and at the outer surface of Er Gao Naihou pet layer the grafting layer is set; Connect by first tack coat between said PET base material and the Yi Gao Naihou pet layer, connect by second tack coat between said PET base material and the Er Gao Naihou pet layer.
The thickness of the said first high weather-proof pet layer is 30～100 μ m, and the thickness of the second high weather-proof pet layer is 30～60 μ m.
The thickness of said first tack coat and second tack coat is 5～15 μ m.
The thickness of said PET base material is 100～250 μ m.
The thickness of said grafting layer is 1～5 μ m.
The present invention also protects the production technology of the high weather-proof solar cell notacoria of a kind of nano plasma modified fluoride-containing, and characteristic is to comprise following processing step:
(1) one side of the first high weather-proof PET was handled in the plasma treatment machine 0.1～2 second, at the one side formation grafting layer of the first high weather-proof PET; The concentration of working gas is 99～99.99%, and working gas is nitrogen and oxygen, and the volume ratio of nitrogen and oxygen is 0.1～2:1, and discharge frequency is 50～5000Hz;
(2) with the one side of the another side of the first high weather-proof PET and PET base material through the compound first high weather-proof pet layer that obtains of binding material, composite pressure is 3～10Kgf, carries out 1～3 day primary solidification at 40～60 ℃;
(3) carry out the compound second high weather-proof pet layer that obtains at the another side of PET base material through the binding material and the second high weather-proof PET again, composite pressure is 3～10Kgf, 40～60 ℃ of slakings of carrying out 3～10 days.
Said binding material is two component Polyurethane glues.
Advantage of the present invention: adopt many ammonia bulk plasmon treatment technology, give material excellent hydrophilicity, the revolutionary notacoria of having realized and has certain reduction for the cost of whole notacoria when solar cell application and the lasting high-adhesion of EVA.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Below in conjunction with concrete accompanying drawing the present invention is described further.
As shown in the figure: plasma modification whole polyester solar cell notacoria according to the invention; Comprise PET base material 3; One side at said PET base material 3 is provided with Yi Gao Naihou pet layer 1; Another side at PET base material 3 is provided with Er Gao Naihou pet layer 5, at the outer surface of Er Gao Naihou pet layer 5 grafting layer 6 is set; Connect by first tack coat 2 between said PET base material 3 and the Yi Gao Naihou pet layer 1, connect by second tack coat 4 between said PET base material 3 and the Er Gao Naihou pet layer 5; The thickness of the said first high weather-proof pet layer 1 is 30～100 μ m, and the thickness of the second high weather-proof pet layer 5 is 30～60 μ m; The thickness of said first tack coat 2 and second tack coat 4 is 5～15 μ m; The thickness of said PET base material 3 is 100～250 μ m; The thickness of said grafting layer 6 is 1～5 μ m.
First tack coat of the present invention and second tack coat are made up of binding material, and said binding material can play bond fluoropolymers film or fluorine-containing coat and PET base material; The not concrete restriction of binding material used in the present invention, only otherwise goal of the invention of the present invention is produced restriction gets final product two component Polyurethane glues that for example embodiment of the invention adopted.
PET base material of the present invention is a material of main part, plays mechanics and supports, intercepts steam, electric insulation; The one side of PET base material is compound with fluoro-containing copolymer film or fluorine-containing coat, and another side (EVA adhesive surface) is polyolefine material (modified poly ethylene etc.).
The of the present invention first high weather-proof pet layer is the outermost material of notacoria, and the outer surface of the first high weather-proof pet layer is the one side that contacts with air, plays effects such as ultraviolet resistance, and the inner surface of high weather-proof pet layer and PET base material are compound.
Grafting layer of the present invention is oxygen and nitrogen to be formed many ammonia body at the grafting layer that the medial surface (EVA adhesive surface) of the second high weather-proof PET forms, have outstanding adhesive property with EVA with the hydrophilic active group that contains hydroxyl under the plasma discharge environment.
Embodiment one: the production technology of the high weather-proof solar cell notacoria of a kind of nano plasma modified fluoride-containing comprises following processing step:
(1) one side of the first high weather-proof PET was handled 0.1 second in the plasma treatment machine, at the one side formation grafting layer of the first high weather-proof PET; The concentration of working gas is 99%, and working gas is nitrogen and oxygen, and the volume ratio of nitrogen and oxygen is 0.1:1, and discharge frequency is 5000Hz;
(2) with the one side of the another side of the first high weather-proof PET and PET base material through the compound first high weather-proof pet layer that obtains of binding material, composite pressure is 3Kgf, carries out 3 days primary solidification at 40 ℃;
(3) carry out the compound second high weather-proof pet layer that obtains at the another side of PET base material through the binding material and the second high weather-proof PET again, composite pressure is 3Kgf, 40 ℃ of slakings of carrying out 10 days.
Embodiment two: the production technology of the high weather-proof solar cell notacoria of a kind of nano plasma modified fluoride-containing comprises following processing step:
(1) one side of the first high weather-proof PET was handled 2 seconds in the plasma treatment machine, at the one side formation grafting layer of the first high weather-proof PET; The concentration of working gas is 99.99%, and working gas is nitrogen and oxygen, and the volume ratio of nitrogen and oxygen is 2:1, and discharge frequency is 50Hz;
(2) with the one side of the another side of the first high weather-proof PET and PET base material through the compound first high weather-proof pet layer that obtains of binding material, composite pressure is 10Kgf, carries out 1 day primary solidification at 60 ℃;
(3) carry out the compound second high weather-proof pet layer that obtains at the another side of PET base material through the binding material and the second high weather-proof PET again, composite pressure is 10Kgf, 60 ℃ of slakings of carrying out 3 days.
Embodiment three: the production technology of the high weather-proof solar cell notacoria of a kind of nano plasma modified fluoride-containing comprises following processing step:
(1) one side of the first high weather-proof PET was handled 1 second in the plasma treatment machine, at the one side formation grafting layer of the first high weather-proof PET; The concentration of working gas is 99.9%, and working gas is nitrogen and oxygen, and the volume ratio of nitrogen and oxygen is 1:1, and discharge frequency is 500Hz;
(2) with the one side of the another side of the first high weather-proof PET and PET base material through the compound first high weather-proof pet layer that obtains of binding material, composite pressure is 6Kgf, carries out 2 days primary solidification at 50 ℃;
(3) carry out the compound second high weather-proof pet layer that obtains at the another side of PET base material through the binding material and the second high weather-proof PET again, composite pressure is 6Kgf, 50 ℃ of slakings of carrying out 6 days.
Claims (7)
1. plasma modification whole polyester solar cell notacoria; Comprise PET base material (3); It is characterized in that: the one side at said PET base material (3) is provided with Yi Gao Naihou pet layer (1); Another side at PET base material (3) is provided with Er Gao Naihou pet layer (5), at the outer surface of Er Gao Naihou pet layer (5) grafting layer (6) is set; Connect by first tack coat (2) between said PET base material (3) and the Yi Gao Naihou pet layer (1), connect by second tack coat (4) between said PET base material (3) and the Er Gao Naihou pet layer (5).
2. plasma modification whole polyester solar cell notacoria as claimed in claim 1 is characterized in that: the thickness of the said first high weather-proof pet layer (1) is 30～100 μ m, and the thickness of the second high weather-proof pet layer (5) is 30～60 μ m.
3. plasma modification whole polyester solar cell notacoria as claimed in claim 1 is characterized in that: the thickness of said first tack coat (2) and second tack coat (4) is 5～15 μ m.
4. plasma modification whole polyester solar cell notacoria as claimed in claim 1 is characterized in that: the thickness of said PET base material (3) is 100～250 μ m.
5. plasma modification whole polyester solar cell notacoria as claimed in claim 1 is characterized in that: the thickness of said grafting layer (6) is 1～5 μ m.
6. the production technology of the high weather-proof solar cell notacoria of nano plasma modified fluoride-containing is characterized in that, comprises following processing step:
(1) one side of the first high weather-proof PET was handled in the plasma treatment machine 0.1～2 second, at the one side formation grafting layer of the first high weather-proof PET; The concentration of working gas is 99～99.99%, and working gas is nitrogen and oxygen, and the volume ratio of nitrogen and oxygen is 0.1～2:1, and discharge frequency is 50～5000Hz;
(2) with the one side of the another side of the first high weather-proof PET and PET base material through the compound first high weather-proof pet layer that obtains of binding material, composite pressure is 3～10Kgf, carries out 1～3 day primary solidification at 40～60 ℃;
(3) carry out the compound second high weather-proof pet layer that obtains at the another side of PET base material through the binding material and the second high weather-proof PET again, composite pressure is 3～10Kgf, 40～60 ℃ of slakings of carrying out 3～10 days.
7. the production technology of the high weather-proof solar cell notacoria of nano plasma modified fluoride-containing as claimed in claim 6 is characterized in that: said binding material is two component Polyurethane glues.
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| CN2012100290842A CN102569462A (en) | 2012-02-10 | 2012-02-10 | Plasma modified all-polyester solar cell back film and production process thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094416A (en) * | 2013-01-21 | 2013-05-08 | 无锡中洁能源技术有限公司 | Photovoltaic module manufacturing technique |
| CN104282805A (en) * | 2014-09-29 | 2015-01-14 | 常州回天新材料有限公司 | Processing method for improving surface energy of back film of solar cell panel |
| CN104401088A (en) * | 2014-11-14 | 2015-03-11 | 无锡中洁能源技术有限公司 | Solar cell panel back membrane and preparation method thereof |
| CN104465836A (en) * | 2014-11-21 | 2015-03-25 | 苏州中来光伏新材股份有限公司 | Solar cell insulation back material, solar cell module and production process of solar cell |
| CN108215402A (en) * | 2016-12-22 | 2018-06-29 | 上海海优威新材料股份有限公司 | Halogen photovoltaic back and preparation method thereof |
| CN108263063A (en) * | 2018-02-12 | 2018-07-10 | 周华 | A kind of composite panel of plastic material and preparation method thereof |
| CN109449217A (en) * | 2017-08-21 | 2019-03-08 | 上海海优威新材料股份有限公司 | Surface is provided with the solar photovoltaic assembly backboard of reflectance coating |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103094416A (en) * | 2013-01-21 | 2013-05-08 | 无锡中洁能源技术有限公司 | Photovoltaic module manufacturing technique |
| CN103094416B (en) * | 2013-01-21 | 2016-08-17 | 无锡中洁能源技术有限公司 | A kind of photovoltaic module production technology |
| CN104282805A (en) * | 2014-09-29 | 2015-01-14 | 常州回天新材料有限公司 | Processing method for improving surface energy of back film of solar cell panel |
| CN104401088A (en) * | 2014-11-14 | 2015-03-11 | 无锡中洁能源技术有限公司 | Solar cell panel back membrane and preparation method thereof |
| CN104465836A (en) * | 2014-11-21 | 2015-03-25 | 苏州中来光伏新材股份有限公司 | Solar cell insulation back material, solar cell module and production process of solar cell |
| CN108215402A (en) * | 2016-12-22 | 2018-06-29 | 上海海优威新材料股份有限公司 | Halogen photovoltaic back and preparation method thereof |
| CN109449217A (en) * | 2017-08-21 | 2019-03-08 | 上海海优威新材料股份有限公司 | Surface is provided with the solar photovoltaic assembly backboard of reflectance coating |
| CN108263063A (en) * | 2018-02-12 | 2018-07-10 | 周华 | A kind of composite panel of plastic material and preparation method thereof |
| CN108263063B (en) * | 2018-02-12 | 2020-01-14 | 江苏和宇新材料有限公司 | Plastic composite board and preparation method thereof |
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Application publication date: 20120711 |