CN103208549B - Back membrane material of solar cell module - Google Patents
Back membrane material of solar cell module Download PDFInfo
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- CN103208549B CN103208549B CN201310084772.3A CN201310084772A CN103208549B CN 103208549 B CN103208549 B CN 103208549B CN 201310084772 A CN201310084772 A CN 201310084772A CN 103208549 B CN103208549 B CN 103208549B
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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 provides a back membrane material of a solar cell module. The back membrane material is composed of an outer surface weather-proof layer, an intermediate layer and an inner surface encapsulation layer, wherein the outer surface weather-proof layer is a fluorine-containing film or a fluorine-containing coating, the intermediate layer is obtained through co-extrusion of a glass fiber modified polyester layer and a polyamide layer, and the inner surface encapsulation layer is an encapsulation rubber layer which is prepared with vinyl acetate-ethylene copolymers and the like serving as matrix resin. The back membrane material has the advantages that the intermediate layer of the high-performance back membrane is improved, the back membrane is used for encapsulating protection of a back side of the solar cell module, and compared with ordinary integrated back membrane films (ethylene vinyl acetate (EVA) + polyethylene terephthalate (PET) + fluorine films), the back membrane material is high in mechanical strength, good in moisture and gas resistance and good in weather-proof performance.
Description
(1) technical field
The present invention relates to a kind of high performance solar cells assembly back membrane material.
(2) background technology
Solar module is as being the equipment of electric energy by light energy conversion, more and more come into one's own, the crystal silicon battery assembly be most widely used at present, its structure is that transparent front glass, EVA adhesive film, cell piece array, EVA adhesive film, metacoxal plate backboard are carried out lamination by heavy top to bottm order, then sends into laminating machine high temperature lamination.
Because solar module is arranged on outdoor support or top of building usually; and long-term useful life can be kept under various natural conditions; so; backboard as metacoxal plate protection and backing material requires that mechanical property is good, good weatherability, barrier strong, can keep certain mechanical strength and water vapor rejection performance under long-range circumstances corrode.
Traditional backboard is generally 3-tier architecture, outer fluoropolymer membrane (PVF, PVDF) has good environment resistant erosiveness, intermediate layer is that PET film has good mechanical strength, and internal layer fluoropolymer membrane (PVF, PVDF) need have good adhesive property through surface treatment and EVA.This backboard is combined with EVA adhesive film, forms back side packaging protection layer.Although double-deck fluoropolymer membrane fabric backplanes weatherability is fine, cost is high, its water vapor rejection ability and mechanical strength also to be improved, under long-term outdoor environmental attack, steam enters and causes backboard breakage cracking, has a strong impact on the generated output of assembly.In recent years, in the innovation of photovoltaic component encapsulating material, cell piece back side EVA adhesive film and back veneer material are carried out integration and improve, remove internal layer fluoropolymer membrane, EVA adhesive film is directly on a pet film bonding, outer fluorine material is strengthened, the integrated material of composition (EVA+PET+ fluorine film) simultaneously.This material can save many costs, but its weather resistance has and to a certain degree declines.
(3) summary of the invention
The object of this invention is to provide a kind of high-performance back membrane material of solar module; this back membrane material is strengthened on the basis of traditional (EVA+PET+ fluorine film) integrated material; make that its mechanical strength is better, good insulation preformance, moisture barrier property are more superior, the double action of protection and packaged battery sheet can be played in solar module.
The technical solution used in the present invention is:
A kind of solar module back membrane material, is made up of outer surface weathering layer, intermediate layer and inner surface encapsulated layer;
Described outer surface weathering layer is fluorine-contained film or fluorine-containing coat, thickness is 5 ~ 50 microns;
Described intermediate layer is obtained by glass fibre modified poly ester layer and aramid layer co-extrusion:
Described glass fibre modified poly ester layer is obtained than blending extrusion with 100:1 ~ 15:0.5 ~ 3 quality by polyester, glass fibre, polyethylene glycol, thickness is 50 ~ 200 microns; Described polyester is one of following or wherein two or more mixture: PETG (PET), polybutylene terephthalate (PBT), poly terephthalic acid di-allyl ester (PDAP), poly fat (PHB); Wherein glass fibre is silicon dioxide (SiO
2), aluminium oxide (Al
2o
3), calcium oxide (CaO), boron oxide (B
2o
3), magnesium oxide (MgO), oxidation receive (Na
2etc. O) one or more in, alkali-free glass fibre tensile strength is high, good insulation preformance, anticorrosion, moistureproof, antidetonation, improves the mechanical strength of polyester mainly as reinforcing material, make it to become excellent structure material, also can improve moisture barrier property and the insulation property of polyester simultaneously; Polyethylene glycol (PEG), as compatilizer, makes glass fibre and the even blending extrusion of polyester.Polyester film after glass fiber-reinforced, has fabulous mechanical strength and shock resistance, has excellent moisture barrier property and insulation property simultaneously.
Described aramid layer thickness is 10 ~ 100 microns; Described polyamide is one of following or wherein two or more mixture: nylon 12 (PA12), poly-lauroyl lauryl amine (PA1212), poly-11 lactams (PA11), poly-certain herbaceous plants with big flowers two acyl certain herbaceous plants with big flowers diamines (PA1010), polyhexamethylene sebacamide (PA610), poly-12 acyl hexamethylene diamines (PA612);
Described inner surface encapsulated layer is packaging adhesive film, the thickness made for matrix resin with VAE, polyvinyl butyral resin, poly-succinic diethylester is 100 ~ 800 microns.
The present invention's key is the improvement in intermediate layer, and outer surface weathering layer and inner surface encapsulated layer are existing known common material, and those of ordinary skill in the art can select according to general knowledge.
Weathering layer adopts fluorine-contained film or fluoro-containing coating, and can ensure notacoria sufficiently long useful life, it can be compounded on the polyester film of intermediate layer for fluorine-contained film; Also can be coated with on the polyester film of intermediate layer by fluoro-containing coating.Fluorine-contained film can be selected from polytetrafluoroethylene (PTFE), perfluoroethylene-propylene (FEP), Kynoar (PVDF), polyvinyl fluoride (PVF), tetrafluoroethene and ethylene copolymer (ETFE) and tetrafluoroethene-perfluorinated alkoxy vinyl ether copolymer (PFA) etc.Fluoro-containing coating can be selected from vinylidene (PVDF) coating, three fluorine-type (FEVE) coating, four fluorine-type (FEP) coating, three fluorine-type coating resins are PVF-vinyl ethers (ester) copolymer, as chlorotrifluoroethylene and alkyl vinyl ether co-polymer, chlorotrifluoroethylene and alkyl vinyl ester copolymer; Four fluorine-type coating resins are tetrafluoroethene and alkyl vinyl ether co-polymer or tetrafluoroethene and alkyl vinyl ester copolymer; Be preferably chlorotrifluoroethylene.
Inner surface encapsulated layer fusion coating is on the polyamide of intermediate layer, and encapsulated layer, except matrix resin, also contains crosslinking and curing agent, ultraviolet absorber, light stabilizer and opacifying fillers (as titanium dioxide, carbon black) etc.This layer of EVA has encapsulation function and ageing-resistant performance, and can stop that solar irradiation is mapped on tack coat, avoids its xanthochromia.
Described crosslinking and curing agent is the conventional crosslinking and curing agent for packaging adhesive film, can be following in one or more: 2, 5-dimethyl-2, two (the t-butyl peroxy)-hexane of 5-, adjacent, the o-tert-butyl group-o-isopropyl-mono--peroxycarbonates, adjacent, the o-tert-butyl group-o-(2-ethylhexyl)-mono--peroxycarbonates, adjacent, o-tertiary pentyl-o-(2-ethylhexyl)-mono--peroxycarbonates, 3, two (t-amyl peroxy) ethyl butyrate of 3-, 3, two (t-butyl peroxy) ethyl butyrate of 3-, 1, two (t-butyl peroxy) butane of 1-, 1, two (the t-butyl peroxy)-cyclohexane of 1-, normal-butyl 4, 4-bis-(tert-butyl peroxide) valerate, 1, two (t-butyl peroxy)-3 of 1-, 3, 5-trimethyl-cyclohexane, 2.2-bis-(tert-butyl peroxide) butane, peroxidating 2-ethylhexyl carbonate tert-pentyl ester, di t-amyl peroxide, peroxidating 2, 5-dimethylhexane-2, 5-di-tert-butyl peroxide or 2, 5-dimethyl-2, two (benzoyl the peroxide)-hexane of 5-, be preferably peroxidating 2-ethylhexyl carbonate tert-pentyl ester or di t-amyl peroxide.
Described ultraviolet absorber is the conventional ultraviolet absorber for packaging adhesive film, can be following in one or more: 2, 2 '-(1, 4-phenylene) two (4H-3, 1-benzoxazine-4-ketone), 2, 2 '-bis-(3, 1-benzoxazine-4-ketone), 2, 2 '-tetramethylene two (3, 1-benzoxazine-4-ketone), 2, 2 '-decamethylene two (3, 1-benzoxazine-4-ketone), 2, 2 '-TOPOT 2,2′ p phenylenebis (3, 1-benzoxazine-4-ketone), 2, 2 '-di-2-ethylhexylphosphine oxide (3, 1-benzoxazine-4-ketone), 1, 3, 5-tri-(3, 1-benzoxazine-4-ketone-2-base) benzene, 2, 4, 6-tri-(3, 1-benzoxazine-4-ketone-2-base) naphthalene, 2, 8-dimethyl-4H, 6H-benzo (1, 2-d, 5,4-d ') two (1,3)-oxazine-4,6-diketone, 6 ', 6-sulfonyl two (2-methyl-4H, 3,1-benzoxazine-4-ketone), 6,7 '-di-2-ethylhexylphosphine oxide (2-methyl-4H, 3,1-benzoxazine-4-ketone), ESCALOL 567, 2,4-DihydroxyBenzophenone, 2-hydroxyl-4-n-octyloxybenzophenone, 2-hydroxyl-4-methoxyl group-2 '-carboxyl benzophenone, 2,2 '-dihydroxy-4,4 '-dimethoxy-benzophenone, 2-hydroxyl-4-benzoyl oxygen base benzophenone, BP-2, 2,2 '-dihydroxy-4,4 '-dimethoxy-benzophenone, 2-hydroxyl-5-chlorobenzophenone, two-(2-methoxyl group-4-hydroxyl-5-benzoylphenyl) methane, 2-(2 '-hydroxy phenyl) BTA, 2-(2 '-hydroxy-5-methyl base phenyl) BTA, 2-(2 '-hydroxy-5-methyl base phenyl)-5-butyl ester BTA, 2-(2 '-hydroxyl-5 '-aminomethyl phenyl)-5,6-dichloro BTAs, 2-(2 '-hydroxy-5-methyl base phenyl)-5-ethyl sulphonyl BTA, 2-(2 '-hydroxyl-5 '-tert-butyl-phenyl)-5-chlorobenzotriazole, 2-(2 '-hydroxyl-5 '-tert-butyl-phenyl) BTA, 2-(2 '-hydroxyl-5 '-aminophenyl) BTA, 2-(2 '-hydroxyl-3 ', 5 '-3,5-dimethylphenyl) BTA, 2-(2 '-methyl-4 '-hydroxy phenyl) BTA, 2-(2 '-hydroxyl-5-carboxylic acid phenyl) BTA ethyl ester, 2-(2 '-hydroxyl-3 ' methyl-5 '-tert-butyl-phenyl) BTA, 2-(2 '-octadecyl oxygen base-3 ', 5 '-3,5-dimethylphenyl)-5-methylbenzotrazole, 2-(2 '-hydroxyl-3 ', 5 '-di-tert-butyl-phenyl)-5-chlorobenzotriazole, 2-(2 '-hydroxyl-3 '-the tert-butyl group-5 '-aminomethyl phenyl)-5-chlorobenzotriazole, 2-(2 '-hydroxyl-5 '-methoxyphenyl) BTA, 2-(2 '-hydroxyl-3 ', 5 '-di-tert-butyl-phenyl)-5-chlorobenzotriazole, 2-(2 '-hydroxyl-5 '-cyclohexyl phenyl) BTA, 2-(2 '-hydroxyl-4 ', 5 '-3,5-dimethylphenyl)-5-carboxylic acid BTA butyl ester, 2-(2 '-hydroxyl-3 ', 5 '-dichlorophenyl) BTA, 2-(2 '-hydroxyl-4 ', 5 '-dichlorophenyl) BTA, 2-(2 '-hydroxyl-3 ', 5 '-3,5-dimethylphenyl)-5-ethyl sulphonyl BTA, 2-(2 '-hydroxyl-4 '-octyloxyphenyl) BTA, 2-(2 '-hydroxyl-5 '-methoxyphenyl)-5-methylbenzotrazole, 2-(2 '-hydroxyl-5 '-aminomethyl phenyl)-5-carboxylate BTA, 2-(2 '-hydroxyl-5 '-tertiary octyl phenyl) BTA or 2-(2 '-acetoxyl group-5 '-aminomethyl phenyl) BTA.Be preferably 2-hydroxyl-4-benzoyl oxygen base benzophenone or 2-(2 '-hydroxyl-4 ', 5 '-3,5-dimethylphenyl)-5-carboxylic acid BTA butyl ester.
Described light stabilizer is the conventional light stabilizer for packaging adhesive film, can be following in one or more: decanedioic acid two-2, 2, 6, 6-tetramethyl piperidine alcohol ester, 2, the chloro-6-of 4-bis-(4-morpholinyl)-1, 3, 5-triazine, two-1-alkoxyl in the last of the ten Heavenly stems-2, 2, 6, 6-tetramethyl piperidine-4-alcohol sebacate, succinic acid and 4-hydroxyl-2, 2, 6, the polymer of 6-tetramethyl-1-piperidine alcohols, N, N '-bis-(2, 2, 6, 6-tetramethyl-4-piperidyl)-1, 6-hexamethylene diamine and 2, the chloro-6-(1 of 4-bis-, 1, 3, 3-tetramethyl butyl) amino-1, 3, the polymer of 5-triazine, N, N '-bis-(2, 2, 6, 6-tetramethyl-4-piperidyl)-1, 6-hexamethylene diamine and 2, the chloro-6-of 4-bis-(4-morpholinyl)-1, 3, the polymer of 5-triazine, N, N '-bis-(1, 2, 2, 6, 6-pentamethyl-4-piperidyl)-1, 6-hexamethylene diamine and morpholine-2, 4, 6-tri-chloro-1, 3, the polymer of 5-triazine, two (1, 2, 2, 6, 6-pentamethyl-4-piperidyl) sebacate/methyl isophthalic acid, 2, 2, 6, 6-pentamethyl-4-piperidinyl sebacate compound or succinic acid and (4-hydroxyl-2, 2, 6, 6-tetramethyl-1-piperidine alcohols) polymer.Be preferably two-2,2,6, the 6-tetramethyl piperidine alcohol esters of decanedioic acid or the chloro-6-of 2,4-bis-(4-morpholinyl)-1,3,5-triazines.
As preferred scheme, the raw material of described outer surface weathering layer fluorine-contained film or fluorine-containing coat is one of following: polytetrafluoroethylene, Kynoar, polyvinyl fluoride; In described glass fibre modified poly ester layer, polyester raw material is one of following: PETG, polybutylene terephthalate, poly fat; Described aramid layer raw material is one of following: nylon 12, poly-lauroyl lauryl amine, poly-certain herbaceous plants with big flowers two acyl certain herbaceous plants with big flowers diamines; Described inner surface encapsulated layer is take VAE as the packaging adhesive film that matrix resin is made.
Preferably, the material quality preparing described encapsulated layer is composed as follows:
More preferred, the material quality preparing described encapsulated layer is composed as follows:
Beneficial effect of the present invention is mainly reflected in: high-performance notacoria of the present invention is by improving intermediate layer; for the packaging protection of dorsal part in solar module; compared with common integrated back membrane material (EVA+PET+ fluorine film); mechanical strength of the present invention is higher; the wet gas barrier properties of resistance is better, and weather resistance is more excellent.
(4) accompanying drawing explanation
Fig. 1 is high-performance notacoria structural representation of the present invention; A is outer surface weathering layer, and BC forms intermediate layer, and be glass fibre modified poly ester layer (B) and aramid layer (C) respectively, D is inner surface encapsulated layer.
(5) embodiment
Below in conjunction with specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in this:
Embodiment 1:
First in mass fraction, 100 parts of PETG (PET, Polyplastics company BN9015) in pellet, add 5 parts of alkali-free glass fibre powder (Guangzhou and Tai Si chemical materials Co., Ltd) and 1 part of polyethylene glycol (PEG6000, Tianjin Tian Tai Fine Chemicals), and mix, composition PET mixture; PET mixture and nylon 12 (PA12, du pont company 159L) are obtained the intermediate layer of 250 microns according to the ratio double-layer coextrusion of 70:30; Then, in polyvinyl fluoride (PVF, the du pont company of pet sheet face dry laminating 25 micron thickness
film, applies the ethylene-vinyl acetate copolymer (EVA, Hangzhou First Photovoltaic Material Co., Ltd. F806) of 400 micron thickness at PA12 melt surface.
Wherein EVA film adds crosslinking agent by EVA resin, ultraviolet absorber, light stabilizer and light-proofness filler melt extrude, be specially in 100 parts of EVA resin (du pont company EVA250), add 1 part of crosslinking agent peroxidating 2-ethylhexyl carbonate tert-pentyl ester (Dutch Akzo Nobel N.V.), 0.1 part of ultraviolet absorber 2-hydroxyl-4-benzoyl oxygen base benzophenone (Nanjing Zhong Hesheng Science and Technology Ltd.), the light stabilizer decanedioic acid two-2 of 0.1 part, 2, 6, 6-tetramethyl piperidine alcohol ester (Nanjing Zhong Hesheng Science and Technology Ltd.), the titanium dioxide white filler (Hangzhou Wanjing New Material Co., Ltd.) of 25 parts.
Embodiment 2:
First in mass fraction, 100 parts of polybutylene terephthalate (PBT, toray company 1494X02) in pellet, add 10 parts of alkali-free glass fibre powder (Hangzhou high-tech composite material Co., Ltd) and 2 parts of polyethylene glycol (PEG8000, Hai'an, Jiangsu petrochemical plant), and mix, composition PBT mixture; PBT mixture and poly-certain herbaceous plants with big flowers two acyl certain herbaceous plants with big flowers diamines (PA1010, du pont company 09-12) are obtained the intermediate layer of 280 microns according to the ratio double-layer coextrusion of 65:35; Then, at the Kynoar (PVDF of PBT surface dry laminating 40 micron thickness, Arkema of France) film, the ethylene-vinyl acetate copolymer film (EVA, Hangzhou First Photovoltaic Material Co., Ltd. F806) of 350 micron thickness is applied at PA1010 melt surface.
Wherein EVA film adds crosslinking agent by EVA resin, ultraviolet absorber, light stabilizer and light-proofness filler melt extrude, be specially 100 parts of TPC companies of EVA(Singapore, MA-10) in resin, add 1.5 parts of crosslinking agent di t-amyl peroxide (Dutch Akzo Nobel N.V.), 0.2 part of ultraviolet absorber 2-(2 '-hydroxyl-4 ', 5 '-3,5-dimethylphenyl)-5-carboxylic acid BTA butyl ester (Nanjing Zhong Hesheng Science and Technology Ltd.), the light stabilizer 2 of 0.2 part, the chloro-6-of 4-bis-(4-morpholinyl)-1, 3, 5-triazine (Nanjing Zhong Hesheng Science and Technology Ltd.), the carbon black filler (Tianjin gold autumn real Chemical Co., Ltd.) of 30 parts.
Embodiment 3
First in mass fraction, 100 parts of PETG (PET, Beijing Yanshan Petrochemical) in pellet, add 5 parts of alkali-free glass fibre powder (Guangzhou Bo Hao composite material Co., Ltd) and 1 part of polyethylene glycol (PEG6000, Tianjin Tian Tai Fine Chemicals), and mix, composition PET mixture; PET mixture and poly-lauroyl lauryl amine (PA1212, French Arkema) are obtained the intermediate layer of 265 microns according to the ratio double-layer coextrusion of 70:30; Then, at Kynoar (PVDF, the French Arkema) film of pet sheet face dry laminating 40 micron thickness, ethylene-vinyl acetate copolymer (EVA) film of 400 micron thickness is applied at PA1212 melt surface.The formation of EVA film is identical with embodiment 1.
Embodiment 4:
First in mass fraction, 100 parts of PETG (PET, toray company) in pellet, add 8 parts of alkali-free glass fibre powder (Guangzhou and Tai Si chemical materials Co., Ltd) and 2 parts of polyethylene glycol (PEG6000, Tianjin Tian Tai Fine Chemicals), and mix, composition PET mixture; PET mixture and nylon 12 (PA12, du pont company) are obtained the intermediate layer of 240 microns according to the ratio double-layer coextrusion of 65:35; Then, at the polytetrafluoroethylene (PTFE, du pont company) of pet sheet face dry laminating 35 micron thickness, ethylene-vinyl acetate copolymer (EVA) film of 380 micron thickness is applied at PA12 melt surface.The formation of EVA film is identical with embodiment 1.
Embodiment 5:
First in mass fraction, 100 parts of polybutylene terephthalate (PBT, GE company of the U.S.) in pellet, add alkali-free glass fibre powder (Hangzhou high-tech composite material Co., Ltd) and 2 parts of polyethylene glycol (PEG8000 of 10 parts, Hai'an, Jiangsu petrochemical plant), and mix, composition PBT mixture; PBT mixture and nylon 12 (PA12, toray company) are obtained the intermediate layer of 280 microns according to the ratio double-layer coextrusion of 65:35; Then, at the polytetrafluoroethylene (PTFE, du pont company) of pet sheet face dry laminating 35 micron thickness, ethylene-vinyl acetate copolymer (EVA) film of 400 micron thickness is applied at PA12 melt surface.The formation of EVA film is identical with embodiment 2.
Embodiment 6:
First in mass fraction, 100 parts of poly fat (PHB, Shanghai red autumnal leaves Plastic Products Co., Ltd) in, add alkali-free glass fibre powder (Guangzhou and Tai Si chemical materials Co., Ltd) and 3 parts of polyethylene glycol (PEG6000 of 15 parts, Tianjin Tian Tai Fine Chemicals), and mix, composition PHB mixture; PHB mixture and nylon 12 (PA12, toray company) are obtained the intermediate layer of 280 microns according to the ratio double-layer coextrusion of 65:35; Then, at Kynoar (PVDF, the French Arkema) film of pet sheet face dry laminating 40 micron thickness, ethylene-vinyl acetate copolymer (EVA) film of 400 micron thickness is applied at PA12 melt surface.The formation of EVA film is identical with embodiment 1.
Comparative example 1:
Market is buied 3M company BBF backboard, structure is EVA/PET/THV, gross thickness 400 microns.
Comparative example 2:
The BEVA-307 notacoria product of Hangzhou Foster company, structure is EVA-450 micron/PET-250 micron/PVDF-20 micron, gross thickness 720 microns.
Adopt above method to obtain notacoria sample, performance index measure by the following method:
1, water vapor transmittance
Measure according to ASTM F1249
2, electrical strength
Measure according to ASTM D149, wherein electrode selects No. 2.
3, hot strength
Measure according to ASTM D882-02.
Table 1: the performance parameter of obtained each notacoria
As can be seen from above Performance Detection index, high-performance back membrane material of the present invention is compared with plain edition back membrane material, and have water vapor transmittance low, hot strength is high, the advantage of good insulation preformance, is very outstanding solar module back-protective material.
Claims (4)
1. a solar module back membrane material, is made up of outer surface weathering layer, intermediate layer and inner surface encapsulated layer;
Described outer surface weathering layer is fluorine-contained film or fluorine-containing coat, thickness is 5 ~ 50 microns;
Described intermediate layer is obtained by glass fibre modified poly ester layer and aramid layer co-extrusion:
Described glass fibre modified poly ester layer is obtained than blending extrusion with 100:1 ~ 15:0.5 ~ 3 quality by polyester, glass fibre, polyethylene glycol, thickness is 50 ~ 200 microns; Described polyester is one of following or wherein two or more mixture: PETG, polybutylene terephthalate, poly terephthalic acid diallyl, ekonol;
Described aramid layer thickness is 10 ~ 100 microns; Described polyamide is one of following or wherein two or more mixture: nylon 12, poly-lauroyl lauryl amine, poly-11 lactams, poly-certain herbaceous plants with big flowers two acyl certain herbaceous plants with big flowers diamines, polyhexamethylene sebacamide, poly-12 acyls diamines;
Described inner surface encapsulated layer is packaging adhesive film, the thickness made for matrix resin with VAE, polyvinyl butyral resin or poly-succinic diethylester is 100 ~ 800 microns.
2. back membrane material as claimed in claim 1, is characterized in that:
The raw material of described outer surface weathering layer fluorine-contained film or fluorine-containing coat is one of following: polytetrafluoroethylene, Kynoar, polyvinyl fluoride;
In described glass fibre modified poly ester layer, polyester raw material is one of following: PETG, polybutylene terephthalate, ekonol;
Described aramid layer raw material is one of following: nylon 12, poly-lauroyl lauryl amine, poly-certain herbaceous plants with big flowers two acyl certain herbaceous plants with big flowers diamines;
Described inner surface encapsulated layer is take VAE as the packaging adhesive film that matrix resin is made.
3. back membrane material as claimed in claim 1 or 2, is characterized in that the material quality preparing described encapsulated layer is composed as follows:
4. back membrane material as claimed in claim 3, is characterized in that the material quality preparing described encapsulated layer is composed as follows:
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| CN104140644B (en) * | 2014-06-23 | 2015-12-02 | 顾祥茂 | A kind of Mylar material and preparation method thereof |
| CN105161558B (en) * | 2015-08-06 | 2017-08-15 | 中国乐凯集团有限公司 | A kind of solar cell package film |
| CN107293609A (en) * | 2016-03-31 | 2017-10-24 | 黄河科技学院 | A kind of flexible solar battery foreboard and its processing technology |
| CN108022988B (en) * | 2016-10-31 | 2020-06-30 | 上迈(镇江)新能源科技有限公司 | Laminated structure of photovoltaic module, preparation method of laminated structure and photovoltaic module |
| CN108365037B (en) * | 2018-01-19 | 2020-07-24 | 合肥宸翊商贸有限公司 | High-strength solar back panel film and preparation method thereof |
| CN108878563A (en) * | 2018-06-29 | 2018-11-23 | 汉能移动能源控股集团有限公司 | Solar cell, power generation device and preparation method of solar cell |
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