CN102427090A - High-blocking performance solar cell back panel and manufacture method thereof - Google Patents
High-blocking performance solar cell back panel and manufacture method thereof Download PDFInfo
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- CN102427090A CN102427090A CN2011103591048A CN201110359104A CN102427090A CN 102427090 A CN102427090 A CN 102427090A CN 2011103591048 A CN2011103591048 A CN 2011103591048A CN 201110359104 A CN201110359104 A CN 201110359104A CN 102427090 A CN102427090 A CN 102427090A
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention relates to a solar cell, in particular to a high-blocking performance solar cell back panel. In order to overcome the defect of worse blocking performance of the traditional solar cell back panel on water vapor and oxygen, the invention provides a high-blocking performance solar cell back panel. The back panel comprises a base material, a blocking layer, a bonding layer and a weather resistant layer, wherein at least one side of the base material is provided with the weather resistant layer; one side of the base material is also provided with the blocking layer; and the blocking layer comprises an oxygen blocking layer and a water vapor blocking layer. The solar cell back panel has strong blocking performance and favorable mechanical performance on water vapor and oxygen. The invention also provides a manufacture method of the high-blocking performance solar cell back panel, which comprises the following steps of: obtaining a polyester base material by adopting a two-way extending process; coating adhesive on the upper surface of the base material and compounding with the oxygen blocking layer; sputtering the water vapor blocking layer on the oxygen blocking layer; and respectively coating the adhesive on the upper surface of the water vapor blocking layer and the lower surface of the base material and compounding with the weather resistant layer. The manufacture method has the advantages of simple process and easiness in operation.
Description
Technical field
The present invention relates to solar cell, especially relate to solar cell backboard, be specifically related to solar cell backboard of a kind of high barrier and preparation method thereof.
Background technology
Solar energy is as a kind of inexhaustible, and the energy of safety non-pollution is widely used.Because the solar components long term exposure in atmosphere, stand steam, oxygen; The erosion of extraneous various environmental factors such as ultraviolet ray; As can not effectively resist these bad border factors, can shorten the useful life of solar cell, and the main effect of solar cell backboard (also can abbreviate the solar energy backboard as) is exactly to protect solar cell not receive the erosion of these environmental factors; Therefore, the barrier to back veneer material requires than higher.Adopt comparatively general backboard film to mainly contain the TPT structure at present, the Tedlar film that just adopts the research and development of two-layer E.I.Du Pont Company to produce is that one deck PET polyester film was composited in the middle of weathering layer coated; The TPE structure, the wherein one side of this structure is a PVF film weathering layer, and another side is an EVA ethene-vinyl acetate copolymerization thin-film barrier layer, and the intermediate layer is the PET laminated polyester film; KPK structure, this structure are the Kynar films that both sides adopt the research and development of French Arkema to produce, and promptly to gather inclined to one side fluorine divinyl rete be weathering layer to PVDF, and the tundish coating is the PET laminated polyester film; The BBF structure; This is a kind of back board structure that 3M company researches and develops voluntarily; This structure intermediate layer also is the PET laminated polyester film, and wherein a side of pet layer is an EVA ethene-vinyl acetate copolymerization film, and opposite side is THV (hexafluoropropylene (HFP)/tetrafluoroethylene (TFE)-vinylidene fluoride copolymers).
These four kinds of composite membranes are to be considered to ideal solar energy back board structure material at present.And present stage domestic and international solar cell backboard producer adopt these four kinds of composite membranes to do the backing material of solar cell.
But because PET polyester molecule chain is submissiveer, relative motion for avoiding interatomic repulsive force, takes place in easily in banking process; Make and more space in accumulation body, occurs; Micromolecule such as oxygen, steam is dissolved among the PET easily, so the PET polyester is a kind of medium barrier material, and is relatively limited to the barrier of steam and oxygen; This also causes the barrier property of whole back plate to be affected, and is unfavorable for long-term use.So developing a kind of high barrier solar energy backboard has important practical sense.
Summary of the invention
Be a kind of medium barrier material in order to solve the existing employed PET polyester of solar cell backboard, relatively poor to the barrier of steam and oxygen, make the barrier property of whole back plate relatively poor; Be unfavorable for the long-term technical problem of using; The present invention provides a kind of solar cell backboard of high barrier, and this solar cell backboard structure is unique, and steam, oxygen-barrier property are better; Mechanical performance is good, meets the basic demand of solar energy backboard.
In order to achieve the above object, the present invention adopts following technical proposals:
Technical scheme 5, a kind of like technical scheme 4 said high barrier solar cell backboards, its feature is, and said oxygen barrier layer is a gelatin materials, and said aqueous vapor separation layer is inorganic thin film layer (also can be described as inorganic barrier layer).
Said gelatin materials forms the gelatin barrier layer, and more preferably, said gelatin thickness is the 40-80 micron.Said gelatin layer is the infiltration of blocking oxygen effectively, can be bonded in the PET substrate surface through the thermosetting method.Said gelatin average molecular weight range is 23000-27000, and moisture is less than 12%, and water-insoluble is less than 0.2%, and content of sulfur dioxide is less than 30mg/kg, the intensity of congealing (H
2O content is 12%) be 220g, the said strength test standard of congealing is national standard " pharmagel hard shell capsules " GB13731, the used test instrument is for freezing force tester.
Technical scheme 6; A kind of like technical scheme 5 said high barrier solar cell backboards, its feature is that the raw material of said base material is a polyester; Said polyester comprises PETG, and said inorganic thin film layer is aluminizer, metal aluminum foil or inorganic compound layer.Adopt aqueous vapor separation layer can effectively reduce the steam transit dose of solar cell backboard.Aqueous vapor separation layer can be combined with each other with other thin layers through the method for vacuum evaporation or compound stickup.
Said PETG can be transparent, also can be white or other colors.Consider first-selected white substrate from the scope of application.The average molecular weight range of polyester raw material is 16000-20000, and inherent viscosity is 0.52-0.70dl/g, and glass transition temperature is greater than 65 ℃, and fusing point is greater than 250 ℃.
Technical scheme 7; A kind of like technical scheme 6 said high barrier solar cell backboards, its feature is that the raw material of said base material is a polyester; Said polyester comprises the biaxial tension PETG; Said weathering layer is a fluorine resin, and for improving the bonding force between backboard film internal layer and the layer, said tack coat adhesive therefor is selected from polyvinyl acetate, polyurethane, polyacrylate or epoxy resin.
Better, said weathering layer can be the combination of a kind of in polyvinyl fluoride, Kynoar, ethene chlorotrifluoroethylene, ethylene tetrafluoroethylene copolymer, hexafluoropropylene (HFP)/tetrafluoroethylene (TFE)-vinylidene, PVF (tetrafluoroethene or trifluoro-ethylene) and the vinyl ether co-polymer or at least two kinds.
Technical scheme 8, a kind of like technical scheme 6 said high barrier solar cell backboards, its feature is that said inorganic compound layer material is SiO
2, Al
2O
3, TiO
2, ZnO, MgO, CaCO
3, BaSO
4In a kind of or at least two kinds combination, the particle diameter of said inorganic particulate is the 5-200 nanometer.
Technical scheme 9; A kind of preparation method like the said high barrier solar cell backboard of one of technical scheme 1-8, its feature are that the raw material of said base material obtains base material through biaxial tension; Said base material and oxygen barrier layer are compound; Sputter one deck aqueous vapor separation layer on said oxygen barrier layer, said aqueous vapor separation layer and said base material are compound with said weathering layer respectively, obtain said high barrier solar cell backboard.The preferred PET of said polyester, PBT, PEN or its co-polymerization modified polyester, the preferred gelatin barrier layer of said oxygen barrier layer, the preferred inorganic barrier layer of said aqueous vapor separation layer.
Technical scheme 10, a kind of preparation method like technical scheme 9 said high barrier solar cell backboards, its feature be, said weathering layer and base material, and base material and oxygen barrier layer, compound between weathering layer and the aqueous vapor separation layer through adhesives.
Technical scheme 11; A kind of like technical scheme 4 said high barrier solar cell backboards, its feature is that said oxygen obstruction layer thickness is the 40-80 micron; The thickness of said aqueous vapor separation layer is the 20-140 nanometer; Said base material thickness is the 150-250 micron, and said weathering layer thickness is the 50-120 micron, and said adhesive layer thickness is the 5-25 micron.
Technical scheme 12; A kind of like technical scheme 4 said high barrier solar cell backboards, its feature is that said oxygen obstruction layer thickness is the 20-60 micron; The thickness of said aqueous vapor separation layer is the 30-120 nanometer; Said base material thickness is the 100-200 micron, and said weathering layer thickness is the 40-100 micron, and said adhesive layer thickness is the 1-15 micron.
Technical scheme 13; A kind of like technical scheme 4 said high barrier solar cell backboards, its feature is that said oxygen obstruction layer thickness is the 60-100 micron; The thickness of said aqueous vapor separation layer is the 60-100 nanometer; Said base material thickness is the 200-350 micron, and said weathering layer thickness is the 100-150 micron, and said adhesive layer thickness is the 15-30 micron.
Technical scheme 14; A kind of like technical scheme 4 said high barrier solar cell backboards, its feature is that said oxygen obstruction layer thickness is the 40-80 micron; The thickness of said aqueous vapor separation layer is the 30-60 nanometer; Said base material thickness is the 100-250 micron, and said weathering layer thickness is the 50-100 micron, and said adhesive layer thickness is the 5-20 micron.
Technical scheme 15; A kind of like technical scheme 4 said high barrier solar cell backboards, its feature is that said oxygen obstruction layer thickness is the 20-80 micron; The thickness of said aqueous vapor separation layer is the 50-100 nanometer; Said base material thickness is the 100-250 micron, and said weathering layer thickness is the 80-150 micron, and said adhesive layer thickness is the 1-15 micron.
Technical scheme 16; A kind of like technical scheme 4 said high barrier solar cell backboards, its feature is that said oxygen obstruction layer thickness is the 50-100 micron; The thickness of said aqueous vapor separation layer is the 40-60 nanometer; Said base material thickness is the 100-350 micron, and said weathering layer thickness is the 60-120 micron, and said adhesive layer thickness is the 20-30 micron.
Compared with prior art, the present invention has following advantage:
Structurally; Solar energy backboard of the present invention uses gelatin and inorganic layer respectively to the barrier of steam and oxygen respectively on barrier layer, intercepts steam and oxygen respectively; More help improving the barrier of backboard, make the steam of this backboard and OTR oxygen transmission rate obviously reduce.
On raw material, the employing gelatin materials is an oxygen barrier layer, and inorganic material is an aqueous vapor separation layer, and polyester material is as base material, and raw material is easy to get and is cheap, makes that the production cost of this backboard is lower.
On properties of product, mechanics excellent performance not only, weatherability is outstanding, the more important thing is that the barrier of this backboard is better.
Description of drawings
Fig. 1 is a high barrier solar cell backboard generalized section provided by the invention;
Among the figure, 1 is weathering layer; 2 is aqueous vapor separation layer; 3 is oxygen barrier layer; 4 is base material;
Embodiment
Below in conjunction with embodiment technical scheme of the present invention is described more specifically; Wherein, Used polyester layer prepares the film grade polyester chip of selling on the raw material employing market among the embodiment; Be PETG (PET), polybutylene terephthalate (PBT) (PBT), PEN (PEN) or its co-polymerization modified polyester, used gelatin, inorganic particulate and fluorine resin also are the existing products of selling on the market.
As shown in Figure 1; High barrier solar cell backboard provided by the invention comprises weathering layer 1, aqueous vapor separation layer 2, oxygen barrier layer 3 and base material 4; Said base material 4 is compound through tack coat and oxygen barrier layer 3; Sputter one deck aqueous vapor separation layer 2 on oxygen barrier layer 3 is coated with layer of adhesive respectively at the upper surface of aqueous vapor separation layer 2 and the lower surface of base material 4, and then compound with weathering layer 1.The preferred fluoropolymer resin layer of said weathering layer, the preferred inorganic barrier layer of said aqueous vapor separation layer, the preferred gelatin barrier layer of said oxygen barrier layer, the preferred PET polyester layer of said base material.
Embodiment 1:
Upper surface coating adhesive at base material PET film; After hot curing, be that 40 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 30 nanometers on the gelatin barrier layer, on inorganic barrier layer, is coated with layer of adhesive, with thickness be that 50 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 50 microns weathering layer is compound, said adhesive layer thickness is 1 micron, said base material thickness is 100 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 1.
Embodiment 2:
Upper surface coating adhesive at base material PET film; After hot curing, be that 60 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 50 nanometers on the gelatin barrier layer, on inorganic barrier layer, is coated with layer of adhesive, with thickness be that 100 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 100 microns weathering layer is compound, said adhesive layer thickness is 10 microns, said base material thickness is 150 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 1.
Embodiment 3:
Upper surface coating adhesive at base material PET film; After hot curing, be that 50 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is 40 nanometer aluminium coateds, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 100 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 100 microns weathering layer is compound, said adhesive layer thickness is 20 microns, said base material thickness is 150 microns.Adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 1.
Embodiment 4:
Upper surface coating adhesive at base material PET film; After hot curing, be that 50 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is 60 nanometer aluminium coateds, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 100 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 100 microns weathering layer is compound, said adhesive layer thickness is 15 microns, said base material thickness is 100 microns.Adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 1.
Embodiment 5:
At wherein coating adhesive of base material PET film, after hot curing, be that 80 microns gelatin barrier layer is compound with thickness, be 80 nanometer aluminium coateds at gelatin barrier layer upper surface sputter one layer thickness.At the another side coating adhesive of base material PET film, with thickness be that 100 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 1.
Embodiment 6:
Upper surface coating adhesive at base material PET film; After hot curing, be that 50 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is 60 nano oxidized silicon layers; In the upper surface of silicon oxide layer coating layer of adhesive, with thickness be that 100 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 120 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 1.
Table 1
Among the following embodiment 7-12, said adhesive layer thickness is the 1-30 micron, and said base material thickness is the 100-350 micron.
Embodiment 7:
Upper surface coating adhesive at base material PET film; After hot curing, be that 20 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 30 nanometers on the gelatin barrier layer; In the upper surface of inorganic barrier layer coating layer of adhesive, with thickness be that 40 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 40 microns weathering layer is compound, said adhesive layer thickness is 1 micron, said base material thickness is 100 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 2.
Embodiment 8:
Upper surface coating adhesive at base material PET film; After hot curing, be that 100 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 100 nanometers on the gelatin barrier layer; In the upper surface of inorganic barrier layer coating layer of adhesive, with thickness be that 150 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 150 microns weathering layer is compound, said adhesive layer thickness is 30 microns, said base material thickness is 350 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 2.
Embodiment 9:
Upper surface coating adhesive at base material PET film; After hot curing, be that 60 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is the aluminium coated of 80 nanometers, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 95 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 95 microns weathering layer is compound, said adhesive layer thickness is 15 microns, said base material thickness is 180 microns.Adhesive layer is an epoxy glue layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 2.
Embodiment 10:
Upper surface coating adhesive at base material PET film; After hot curing, be that 40 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is the aluminium coated of 50 nanometers, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 50 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 50 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 2.
Embodiment 11:
At wherein coating adhesive of base material PET film, after hot curing, be that 80 microns gelatin barrier layer is compound with thickness, be the aluminium coated of 80 nanometers at gelatin barrier layer upper surface sputter one layer thickness.At the another side coating adhesive of base material PET film, with thickness be that 120 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 2.
Embodiment 12:
Upper surface coating adhesive at base material PET film; After hot curing, be that 40 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is the silicon oxide layer of 80 nanometers; In the upper surface of silicon oxide layer coating layer of adhesive, with thickness be that 80 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 100 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 2.
Table 2
Among the following embodiment 13-18, said adhesive layer thickness is the 15-30 micron, and said base material thickness is the 200-350 micron, and said weathering layer is selected polyvinyl fluoride, Kynoar or the ethene chlorotrifluoroethylene of selling on the market for use.
Embodiment 13:
Upper surface coating adhesive at base material PET film; After hot curing, be that 60 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 60 nanometers on the gelatin barrier layer, on inorganic barrier layer, is coated with layer of adhesive, with thickness be that 100 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 100 microns weathering layer is compound, said adhesive layer thickness is 15 microns, said base material thickness is 200 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 3.
Embodiment 14:
Upper surface coating adhesive at base material PET film; After hot curing, be that 100 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 100 nanometers on the gelatin barrier layer; On inorganic barrier layer, be coated with layer of adhesive, with thickness be that 150 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 150 microns weathering layer is compound, said adhesive layer thickness is 30 microns, said base material thickness is 350 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 3.
Embodiment 15:
Upper surface coating adhesive at base material PET film; After hot curing, be that 80 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is 80 nanometer aluminium coateds, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 125 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 125 microns weathering layer is compound, said adhesive layer thickness is 22 microns, said base material thickness is 280 microns.Adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 3.
Embodiment 16:
Upper surface coating adhesive at base material PET film; After hot curing, be that 80 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is 90 nanometer aluminium coateds, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 120 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 120 microns weathering layer is compound, adhesive layer is the acrylic acid ester glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 3.
Embodiment 17:
At wherein coating adhesive of base material PET film, after hot curing, be that 70 microns gelatin barrier layer is compound with thickness, be 80 nanometer aluminium coateds at gelatin barrier layer upper surface sputter one layer thickness.At the another side coating adhesive of base material PET film, with thickness be that 150 microns weathering layer is compound, adhesive layer is an epoxy glue layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 3.
Embodiment 18:
Upper surface coating adhesive at base material PET film; After hot curing, be that 100 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is 60 nano oxidized silicon layers; In the upper surface of silicon oxide layer coating layer of adhesive, with thickness be that 100 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 150 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 3.
Table 3
Among the following embodiment 19-24, said adhesive layer thickness is the 5-25 micron, and said base material thickness is the 150-250 micron, and said weathering layer is selected ethylene tetrafluoroethylene copolymer or the hexafluoropropylene (HFP)/tetrafluoroethylene (TFE)-vinylidene of selling on the market for use.
Embodiment 19:
Upper surface coating adhesive at base material PET film; After hot curing, be that 40 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 60 nanometers on the gelatin barrier layer; In the upper surface of inorganic barrier layer coating layer of adhesive, with thickness be that 50 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 50 microns weathering layer is compound, said adhesive layer thickness is 5 microns, said base material thickness is 150 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 4.
Embodiment 20:
Upper surface coating adhesive at base material PET film; After hot curing, be that 80 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 30 nanometers on the gelatin barrier layer; In the upper surface of inorganic barrier layer coating layer of adhesive, with thickness be that 100 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 100 microns weathering layer is compound, said adhesive layer thickness is 25 microns, said base material thickness is 250 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 4.
Embodiment 21:
Upper surface coating adhesive at base material PET film; After hot curing, be that 60 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is 45 nanometer aluminium coateds, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 80 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 75 microns weathering layer is compound, said adhesive layer thickness is 15 microns, said base material thickness is 200 microns.Adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 4.
Embodiment 22:
Upper surface coating adhesive at base material PET film; After hot curing, be that 50 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is 40 nanometer aluminium coateds, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 90 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 90 microns weathering layer is compound, adhesive layer is the acrylic acid ester glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 4.
Embodiment 23:
At wherein coating adhesive of base material PET film, after hot curing, be that 75 microns gelatin barrier layer is compound with thickness, be 50 nanometer aluminium coateds at gelatin barrier layer upper surface sputter one layer thickness.At the another side coating adhesive of base material PET film, with thickness be that 90 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 4.
Embodiment 24:
Upper surface coating adhesive at base material PET film; After hot curing, be that 60 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is 40 nano oxidized silicon layers, in the upper surface of silicon oxide layer coating layer of adhesive, with thickness be that 80 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 100 microns weathering layer is compound, adhesive layer is an epoxy glue layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 4.
Table 4
Among the following embodiment 25-30, said adhesive layer thickness is the 1-15 micron, and said base material thickness is the 100-250 micron, and said weathering layer is selected the trifluoro-ethylene of selling on the market for use.
Embodiment 25:
Upper surface coating adhesive at base material PET film; After hot curing, be that 20 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 50 nanometers on the gelatin barrier layer; In the upper surface of inorganic barrier layer coating layer of adhesive, with thickness be that 80 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 120 microns weathering layer is compound, said adhesive layer thickness is 1 micron, said base material thickness is 100 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 5.
Embodiment 26:
Upper surface coating adhesive at base material PET film; After hot curing, be that 80 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 100 nanometers on the gelatin barrier layer, on inorganic barrier layer, is coated with layer of adhesive, with thickness be that 150 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, said adhesive layer thickness is 15 microns, said base material thickness is 250 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 5.
Embodiment 27:
Upper surface coating adhesive at base material PET film; After hot curing, be that 50 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is 75 nanometer aluminium coateds, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 115 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 100 microns weathering layer is compound, said adhesive layer thickness is 8 microns, said base material thickness is 180 microns.Adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 5.
Embodiment 28:
Upper surface coating adhesive at base material PET film; After hot curing, be that 80 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is 50 nanometer aluminium coateds, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 80 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 5.
Embodiment 29:
At wherein coating adhesive of base material PET film, after hot curing, be that 70 microns gelatin barrier layer is compound with thickness, be 50 nanometer aluminium coateds at gelatin barrier layer upper surface sputter one layer thickness.At the another side coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, adhesive layer is the acrylic acid ester glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 5.
Embodiment 30:
Upper surface coating adhesive at base material PET film; After hot curing, be that 60 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is 90 nano oxidized silicon layers; In the upper surface of silicon oxide layer coating layer of adhesive, with thickness be that 100 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 100 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 5.
Table 5
Among the following embodiment 31-36, said adhesive layer thickness is the 1-15 micron, and said base material thickness is the 100-350 micron, and said weathering layer is selected the polytetrafluoroethylene of selling on the market for use.
Embodiment 31:
Upper surface coating adhesive at base material PET film; After hot curing, be that 20 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 10 nanometers on the gelatin barrier layer; In the upper surface of inorganic barrier layer coating layer of adhesive, be that 120 microns weathering layer is compound further with thickness.At the lower surface coating adhesive of base material PET film, with thickness be that 120 microns weathering layer is compound, said adhesive layer thickness is 1 micron, said base material thickness is 100 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 6.
Embodiment 32:
Upper surface coating adhesive at base material PET film; After hot curing, be that 100 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 150 nanometers on the gelatin barrier layer; In the upper surface of inorganic barrier layer coating layer of adhesive, be that 80 microns weathering layer is compound further with thickness.At the lower surface coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, said adhesive layer thickness is 15 microns, said base material thickness is 350 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 6.
Embodiment 33:
Upper surface coating adhesive at base material PET film; After hot curing, be that 55 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is the aluminium coated of 80 nanometers, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 100 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 100 microns weathering layer is compound, said adhesive layer thickness is 7 microns, said base material thickness is 190 microns.Adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 6.
Embodiment 34:
Upper surface coating adhesive at base material PET film; After hot curing, be that 80 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is the aluminium coated of 50 nanometers, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 80 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 6.
Embodiment 35:
At wherein coating adhesive of base material PET film, after hot curing, be that 40 microns gelatin barrier layer is compound with thickness, be the aluminium coated of 110 nanometers at gelatin barrier layer upper surface sputter one layer thickness.At the another side coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, adhesive layer is the acrylic acid ester glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 6.
Embodiment 36:
Upper surface coating adhesive at base material PET film; After hot curing, be that 60 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is the silicon oxide layer of 40 nanometers; In the upper surface of silicon oxide layer coating layer of adhesive, with thickness be that 60 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 6.
Table 6
Among the following embodiment 37-42, said adhesive layer thickness is the 5-25 micron, and said base material thickness is the 150-250 micron, and said weathering layer is selected PVF (tetrafluoroethene or trifluoro-ethylene) or the vinyl ether co-polymer of selling on the market for use.
Embodiment 37:
Upper surface coating adhesive at base material PET film; After hot curing, be that 60 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 80 nanometers on the gelatin barrier layer; In the upper surface of inorganic barrier layer coating layer of adhesive, with thickness be that 90 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 120 microns weathering layer is compound, said adhesive layer thickness is 5 microns, said base material thickness is 150 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 7.
Embodiment 38:
Upper surface coating adhesive at base material PET film; After hot curing, be that 80 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 140 nanometers on the gelatin barrier layer; In the upper surface of inorganic barrier layer coating layer of adhesive, with thickness be that 120 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, said adhesive layer thickness is 25 microns, said base material thickness is 250 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 7.
Embodiment 39:
Upper surface coating adhesive at base material PET film; After hot curing, be that 40 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is 20 nanometer aluminium coateds, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 50 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 100 microns weathering layer is compound, said adhesive layer thickness is 15 microns, said base material thickness is 200 microns.Adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 7.
Embodiment 40:
Upper surface coating adhesive at base material PET film; After hot curing, be that 80 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is 50 nanometer aluminium coateds, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 80 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 7.
Embodiment 41:
At wherein coating adhesive of base material PET film, after hot curing, be that 70 microns gelatin barrier layer is compound with thickness, be 50 nanometer aluminium coateds at gelatin barrier layer upper surface sputter one layer thickness.At the another side coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, adhesive layer is the acrylic acid ester glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 7.
Embodiment 42:
Upper surface coating adhesive at base material PET film; After hot curing, be that 60 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is the silicon oxide layer of 40 nanometers; In the upper surface of silicon oxide layer coating layer of adhesive, with thickness be that 60 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 7.
Table 7
Among the following embodiment 43-48, said adhesive layer thickness is the 1-15 micron, and said base material thickness is the 100-200 micron, and said weathering layer is selected the PVF of selling on the market (tetrafluoroethene or trifluoro-ethylene) for use.
Embodiment 43:
Upper surface coating adhesive at base material PET film; After hot curing, be that 20 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 30 nanometers on the gelatin barrier layer, on inorganic barrier layer, is coated with layer of adhesive, with thickness be that 100 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 100 microns weathering layer is compound, said adhesive layer thickness is 1 micron, said base material thickness is 100 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 8.
Embodiment 44:
Upper surface coating adhesive at base material PET film; After hot curing, be that 60 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 120 nanometers on the gelatin barrier layer, on inorganic barrier layer, is coated with layer of adhesive, with thickness be that 40 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, said adhesive layer thickness is 15 microns, said base material thickness is 200 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 8.
Embodiment 45:
Upper surface coating adhesive at base material PET film; After hot curing, be that 40 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is the aluminium coated of 75 nanometers, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 70 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 70 microns weathering layer is compound, said adhesive layer thickness is 9 microns, said base material thickness is 150 microns.Adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 8.
Embodiment 46:
Upper surface coating adhesive at base material PET film; After hot curing, be that 50 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is the aluminium coated of 50 nanometers, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 80 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 8.
Embodiment 47:
At wherein coating adhesive of base material PET film, after hot curing, be that 30 microns gelatin barrier layer is compound with thickness, be the aluminium coated of 90 nanometers at gelatin barrier layer upper surface sputter one layer thickness.At the another side coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, adhesive layer is the acrylic acid ester glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 8.
Embodiment 48:
Upper surface coating adhesive at base material PET film; After hot curing, be that 58 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is the silicon oxide layer of 40 nanometers; In the upper surface of silicon oxide layer coating layer of adhesive, with thickness be that 60 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 8.
Table 8
Among the following embodiment 49-54, said adhesive layer thickness is the 20-30 micron, and said base material thickness is the 100-350 micron, and said weathering layer is selected the polytetrafluoroethylene of selling on the market for use.
Embodiment 49:
Upper surface coating adhesive at base material PET film; After hot curing, be that 50 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 40 nanometers on the gelatin barrier layer; In the upper surface of inorganic barrier layer coating layer of adhesive, be that 60 microns weathering layer is compound further with thickness.At the lower surface coating adhesive of base material PET film, with thickness be that 120 microns weathering layer is compound, said adhesive layer thickness is 20 microns, said base material thickness is 100 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 9.
Embodiment 50:
Upper surface coating adhesive at base material PET film; After hot curing, be that 100 microns gelatin barrier layer is compound with thickness; Sputter one layer thickness is the inorganic barrier layer of 60 nanometers on the gelatin barrier layer; In the upper surface of inorganic barrier layer coating layer of adhesive, be that 120 microns weathering layer is compound further with thickness.At the lower surface coating adhesive of base material PET film, with thickness be that 120 microns weathering layer is compound, said adhesive layer thickness is 30 microns, said base material thickness is 350 microns.Adhesive layer is the polyurethane glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 9.
Embodiment 51:
Upper surface coating adhesive at base material PET film; After hot curing, be that 75 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is the aluminium coated of 50 nanometers, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 90 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 90 microns weathering layer is compound, said adhesive layer thickness is 25 microns, said base material thickness is 170 microns.Adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 9.
Embodiment 52:
Upper surface coating adhesive at base material PET film; After hot curing, be that 80 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is the aluminium coated of 50 nanometers, in the upper surface of aluminium coated coating layer of adhesive, with thickness be that 80 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 9.
Embodiment 53:
At wherein coating adhesive of base material PET film, after hot curing, be that 70 microns gelatin barrier layer is compound with thickness, be the aluminium coated of 50 nanometers at gelatin barrier layer upper surface sputter one layer thickness.At the another side coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, adhesive layer is the acrylic acid ester glue-line, obtains the solar energy backboard.Gained backboard correlated performance is seen table 9.
Embodiment 54:
Upper surface coating adhesive at base material PET film; After hot curing, be that 60 microns gelatin barrier layer is compound with thickness; At gelatin barrier layer upper surface sputter one layer thickness is the silicon oxide layer of 40 nanometers; In the upper surface of silicon oxide layer coating layer of adhesive, with thickness be that 60 microns weathering layer is compound.At the lower surface coating adhesive of base material PET film, with thickness be that 80 microns weathering layer is compound, adhesive layer is a vinyl acetate layer, obtains the solar energy backboard.Gained backboard correlated performance is seen table 9.
Table 9
From the test result of table 1 to table 9, can find out; Adopt the steam transmitance of solar energy backboard of the present invention (embodiment 1-embodiment 54) significant reduction to be arranged than Comparative Examples; The barrier that solar energy backboard of the present invention is described is very good; When improving barrier, the macromechanics intensity (mechanical strength) of backboard of the present invention is not affected even raising is arranged, and explains that backboard mechanical stability provided by the invention is very high in addition.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.Every equalization that content is done according to the present invention changes and modifies, and all is encompassed in the claim of the present invention.
Claims (10)
1. high barrier solar cell backboard; Comprise base material, barrier layer, tack coat and weathering layer, it is characterized in that at least one side is provided with weathering layer in the said base material both sides; Side at base material also is provided with barrier layer, and said barrier layer comprises oxygen barrier layer and aqueous vapor separation layer.
2. high barrier solar cell backboard according to claim 1; It is characterized in that; Said base material both sides are provided with weathering layer; Said barrier layer places between said base material and the weathering layer, and said barrier layer is compound through tack coat and said base material, and said weathering layer is bonded in the both sides of said base material and barrier layer through tack coat.
3. one kind like the said high barrier solar cell backboard of claim 2, it is characterized in that said oxygen obstruction layer thickness is the 20-100 micron, and the thickness of said aqueous vapor separation layer is the 10-150 nanometer.
4. one kind like the said high barrier solar cell backboard of claim 3; It is characterized in that said base material thickness is the 100-350 micron, said weathering layer thickness is the 40-150 micron; Said adhesive layer thickness is the 1-30 micron, and the thickness of said aqueous vapor separation layer is the 30-100 nanometer.
5. one kind like the said high barrier solar cell backboard of claim 4, it is characterized in that said oxygen barrier layer is a gelatin materials, and said aqueous vapor separation layer is an inorganic thin film layer.
6. one kind like the said high barrier solar cell backboard of claim 5, it is characterized in that the raw material of said base material is a polyester, and said polyester comprises PETG, and said inorganic thin film layer is aluminizer, metal aluminum foil or inorganic compound layer.
7. one kind like the said high barrier solar cell backboard of claim 6; It is characterized in that; The raw material of said base material is a polyester; Said polyester comprises the PETG of biaxial tension, and said weathering layer is a fluorine resin, and the used bonding agent of said tack coat is selected from polyvinyl acetate, polyurethane, polyacrylate or epoxy resin.
8. one kind like the said high barrier solar cell backboard of claim 6, it is characterized in that said inorganic compound layer material is SiO
2, Al
2O
3, TiO
2, ZnO, MgO, CaCO
3, BaSO
4In a kind of or at least two kinds combination, the particle diameter of said inorganic particulate is the 5-200 nanometer.
9. preparation method like the said high barrier solar cell backboard of one of claim 1-8; It is characterized in that; The raw material of said base material obtains base material through biaxial tension, and said base material and oxygen barrier layer are compound, sputter one deck aqueous vapor separation layer on said oxygen barrier layer; Said aqueous vapor separation layer and said base material are compound with said weathering layer respectively, obtain said high barrier solar cell backboard.
10. the preparation method like the said high barrier solar cell backboard of claim 9 is characterized in that, said weathering layer and base material, and base material and oxygen barrier layer, compound between weathering layer and the aqueous vapor separation layer through adhesives.
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Application publication date: 20120425 |