CN102167862A - EVA (ethylene-vinyl acetate) film for packaging photovoltaic module - Google Patents
EVA (ethylene-vinyl acetate) film for packaging photovoltaic module Download PDFInfo
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- CN102167862A CN102167862A CN2010106082825A CN201010608282A CN102167862A CN 102167862 A CN102167862 A CN 102167862A CN 2010106082825 A CN2010106082825 A CN 2010106082825A CN 201010608282 A CN201010608282 A CN 201010608282A CN 102167862 A CN102167862 A CN 102167862A
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- vinyl acetate
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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
Abstract
The invention discloses an EVA (ethylene-vinyl acetate) film for packaging a photovoltaic module, vinyl acetate and ethylene after treatment are used under heating conditions, and a vulcanizing agent, a catalyst and a polymerization inhibitor are respectively added with appropriate amount so as to synthesize an ethylene-vinyl acetate copolymer, namely the EVA film; by adding the vulcanizing agent, the polymerization inhibitor, a cross-linking agent and the catalyst in the ethylene-vinyl acetate, a product has excellent processing and molding performances, and an antioxidant, an anti-ultraviolet agent, a viscosity increaser and other auxiliaries are simultaneously added, so that the product has excellent anti-oxidation aging and yellowing resistance, and good adhesion performance, and can be widely applied in the photovoltaic modules for use under different weather environments.
Description
Technical field
The invention belongs to macromolecular material, relate to solar photovoltaic assembly packaged material field, refer in particular to a kind of EVA film that under different climatope conditions, uses.
Background technology
Found the photovoltaic effect beginning from einstein, people just recognize that sun power is the human following main energy sources, and photovoltaic generation has been begun research.In recent years, in the face of the energy dilemma that becomes increasingly conspicuous, countries in the world one after another with the utilization of renewable energy sources such as sun power as the new forms of energy development strategy, be that the new forms of energy industry of core is rapidly developed with the photovoltaic.Because solar energy resources is inexhaustible, the photovoltaic generation process pollution-free, do not have advantages such as discharging, noiselessness, become the renewable energy technologies of tool Sustainable development feature and the focus that application is competitively studied in countries in the world.Along with the continuous progress of photovoltaic technology, photoelectric transformation efficiency day by day improves, and solar cell of new generation emerges in large numbers, and production and application cost reduce significantly, and photovoltaic generation is expected to change to substitute energy from replenishing the energy, and market outlook are very wide.
Ethylene-vinyl acetate copolymer is called for short EVA, and general vinyl acetate between to for plastic (VA) content is 5%～40%.Compare with polyethylene, EVA has been owing to introduced Vinyl Acetate Monomer in molecular chain, thereby reduced high-crystallinity, improved snappiness, shock resistance, filler intermiscibility and heat seal performance.
Packaging adhesive film for solar cell is to use EVA (ethene and vinyl acetate between to for plastic) to be main raw material, adds various auxiliary agent post-heating to extrude, roll forming.Inviscid at normal temperatures.Cut into the film of desired size during use according to solar panel specification size,--order stack of TPT backboard lumps together glued membrane--cell panel wafer--again by glass, place in the aluminum alloy frame, put into lamination case internal heating then, the thawing of finding time, pressurize, put into the isothermal curing case again and solidify, solar panel.This is the solar cell encapsulation method that all adopt present countries in the world, is begun one's study by the U.S. and uses as far back as the end of the seventies to the beginning of the eighties.China is in the later stage eighties, along with the introduction of manufacture of solar cells line.
In China, begun the research of solar energy power generating more for a long time, the industrial scale of photovoltaic cell occupies first place in the world, and product mainly is to export to developed country.Domestic since having used 2003, just starting gradually under the promotion of government.The ultimate production of photovoltaic cell was 1200MW in 2007, and 2008 is 2000MW, and expectation in 2009 can reach 4000MW.Tempo annual in 10 years from now on will be above 40%.The solar cell power generation unit of every 1MW needs 30000 square metres on EVA glued membrane approximately.Only domestic the glued membrane demand was just reached 1.2 hundred million square metres in 2009, and the existing throughput of domestic glued membrane has only 7,000 ten thousand square metres, also can't satisfy domestic battery producer demand far away, though existing manufacturer also has certain gap with the external product ratio on quality product, present domestic most of photovoltaic enterprise, the required glued membrane of especially large-scale esbablished corporation also relies on import.But the price of import glued membrane is several times of homemade glued membrane, and along with the maturation of domestic production glued membrane technology, production domesticization has become inevitable trend.
The special-purpose EVA film of the photovoltaic module of existing domestic part manufacturer production has solved and has obtained bigger progress, but compared with external product, also has many defectives.Mainly comprise, transmittance is lower, and the hot-cool environment of anti-the polar region is poor, and is especially poor aspect anti-aging, anti-xanthochromia, influence the turnover ratio and the work-ing life of solar cell panel products to a great extent, made a lot of products after using 3-5, the situation of scrapping occur.
Along with the photovoltaic solar application, its usage quantity is in rapid expansion, and Application Areas begins to consider at no man's land Large scale construction photo-voltaic power generation station in order effectively to utilize sun power, people also in continuous increase.For example, there is part overseas enterprise to begin to set up photo-voltaic power generation station now in the desert, but the temperature difference of desert day and night is big, this just has higher requirement to the photovoltaic product, how to improve the EVA film properties, to adapt in varying environment, the especially use under the adverse weather condition is one of main purpose of the present invention.
Summary of the invention
The transmittance that the objective of the invention is in order to remedy existing EVA film existence is lower, the hot-cool environment of anti-the polar region is poor, especially the weak point of aspect such as poor aspect anti-aging, anti-xanthochromia provides a kind of have high transmission rate, anti-xanthochromia, anti-big temperature difference circulation, the damp and hot EVA film of anti-drying.
In order to achieve the above object, technical solution adopted in the utility model is as follows: under heating condition, add an amount of vulcanizing agent, catalyzer and stopper, synthesizing ethylene-acetate ethylene copolymer, i.e. EVA film with treated vinyl acetate between to for plastic and ethene.
The present invention develops the special formula system through experiment repeatedly, under the condition that improves EVA film transmittance, bigger raising EVA film anti-oxidant, uvioresistant, anti-yellowing property have also improved that it is poor at the hot-cool environment of anti-the polar region simultaneously, wetland, the reliability under the rigor condition such as desert.
The selection of ethene and modification vinyl acetate between to for plastic and blending ratio are the principal elements that influences processing of EVA film and performance, comprise snappiness, film-forming properties, use temperature etc.The base mateiral ethene that the present invention is used and the adding proportion of modification vinyl acetate between to for plastic are respectively: 20-50%, ethene 30-80%
Linking agent is the principal element that influences the product degree of crosslinking, in order to reach the degree of crosslinking that needs, the selected linking agent of the present invention is the linking agent of bifunctional or polyfunctional group structure, so that the EVA film has higher degree of crosslinking, add Platinic chloride or the triphenylphosphine platinum chloride catalyst of 0.01-0.05% simultaneously, with the control formed product time.
Oxidation inhibitor mainly contains Hinered phenols antioxidant, the monothioester kind antioxidant, and phosphite ester kind antioxidant, phenolic antioxidant, different oxidation inhibitor has certain otherness.The monothioester kind antioxidant has good antioxidant property, but works as adding proportion greater than 0.7%, and product fragility is increased.Phosphite ester kind antioxidant also has good antioxidant property, but addition more for a long time, has more free acid, influences the work-ing life of product.Though phenolic antioxidant antioxidant property antioxidant property than preceding two kinds a little bit poorer a little, experiment showed, that it has satisfactory stability in the EVA system.
Oxidation inhibitor, β (3,5-di-t-butyl-4-hydroxybenzene) propionic acid octadecanol ester can be used as the oxidation inhibitor of PE, PP, PS, ABS resin, nylon, urethane, cellulosics and various rubber.Good with EVA goods intermiscibility, not painted, not pollute, volatility is little, with UV light absorber and usefulness, good synergy is arranged.
Oxidation inhibitor, two (2, the 4-di-tert-butyl-phenyl) the two diphosphites of tetramethylolmethane, be mainly used in polypropylene, polyethylene, polyvinyl chloride, ABS, nylon, PVC etc., can be used for improving colour stability, with phenolic antioxidant and the composite use of UV light absorber hindered amine light stabilizer, can form one and have optimal process, anti-long-term aging, UV stable, and in the EVA system, have the special efficacy of stable superpolymer melt viscosity.
Oxidation inhibitor, the two dodecane esters of thio-2 acid two (18) ester and thio-2 acid are thioesters class auxiliary antioxidants of excellent property, its anti-oxidant usefulness is low than DLTP height, volatility, but with the consistency of resin not as good as DLTP.But fabulous synergistic effect is arranged with phenols primary antioxidant, UV light absorber etc. and time spent.
Oxidation inhibitor, 2,2 methylene radical-two (4-methyl-6-tert butyl phenol) are good uncontamination oxidation inhibitor, cause be full of cracks that protective benefits is arranged at the caused aging and daylight of antioxygen, solar heat protection, and the sulfuration and the plasticity number of rubber are not all had influence.Adding common consumption is 0.5-1.5%, so no bloom phenomenon is added in the EVA film, its heat resistanceheat resistant oxidative stability height, do not pollute, not painted, no blooming, volatilizer be little, with UV light absorber and with good synergistic being arranged, moisture-proof heat, the cold-resistant thermal circulation performance of raising goods.
Oxidation inhibitor, poly--{ [6-[(1,1,3,3 ,-tetramethyl butyl)-imino-]-1,3,5,-triazine-2,4-two bases] [2-(2,2,6,6 ,-tetramethyl-piperidyl)-inferior amino-hexa-methylene-[4-(2,2,6,6 ,-tetramethyl-piperidyl)-inferior amino]], this is these the two kinds family macromolecule amount photostabilizers that are obstructed, because of multiple functional group is arranged in its molecule, so the light stability height, in the present invention, with the composite use of other oxidation inhibitor.
Antioxidant used in the present invention is based on phenolic antioxidant, and the oxidation inhibitor of composite other kinds of while is to reach the unification of manufacturability and product performance.One or more mixture of preferred following oxidation inhibitor among the present invention: sebacic acid pairs (2; 2; 6; 6-tetramethyl--4-piperidines) ester; thio-2 acid two (18) ester; the two dodecane esters of thio-2 acid; N, N '-two-[3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionyl] hexanediamine; β (3; 5-di-t-butyl-4-hydroxybenzene) propionic acid octadecanol ester, 2,2 methylene radical-two (4-methyl-6-tert butyl phenol); two diphosphites of two (2, the 4-di-tert-butyl-phenyl) tetramethylolmethane and above-mentioned piperidyl oxidation inhibitor.In the course of processing, adding proportion is: 0.6-2.5%
Vulcanizing agent, it can make rubber molecular chain play crosslinking reaction, makes linear molecule form tridimensional network, and plasticity-reduces, the material that elasticator intensity increases.Except some thermoplastic elastomer did not need sulfuration, natural rubber and various synthetic rubber all need be allocated vulcanizing agent into and vulcanize.Rubber just has use value after sulfuration, and mechanical property significantly improves.
In the present invention, we add N at selectivity, a N '-penylene bismaleimides, and as multifunctional rubber chemicals, it both can make vulcanizing agent in the Rubber processing process, also can make the cocuring agent of peroxide systems, also played certain anti-scorch and tackify effect.
2,4,6-tri-thiol-1,3,5-triazine, 2,4,6-tri-thiol-1,3, the 5-triaizine compounds is widely used in polypropylene, the thermo-stabilizer of superpolymer such as rubber, propylene dichloride acetoacetic ester-ethene polymers, the vulcanizing agent of polymkeric substance such as acrylic rubber, its vulcanization rate is fast, incipient scorch safety, can shorten curing time, need not post vulcanization, the remarkable cross-linked rubber good mechanical property characteristics of the EVA glued membrane oil resistant of making, heat-resisting, anti-transformation.
In the present invention, one or more mixture of preferred following vulcanizing agent: N, a N '-penylene bismaleimides, 2,4,6-tri-thiol-1,3,5-triazines, 2,4,6-tri-thiol-1,3, the 5-triaizine compounds, 1,1-bis(t-butylperoxy)-3,3,5-trimethyl-cyclohexane, 2,5-dimethyl-2,5 pair (tertiary butyl, peroxy) hexane, addition is 0.5-3%.
In the present invention, selectivity adds 1,1-bis(t-butylperoxy)-3,3, and the 5-trimethyl-cyclohexane, 2,5-dimethyl-2,5 pair (tertiary butyl, peroxy) hexane, their activity are higher, are used as polymerization and copolymerization initiator, and addition is 0.1-0.2%.
UV-light is to influence one of xanthochromic principal element of EVA film, in order to reduce UV-light to the influence in work-ing life of EVA film, the more preferred excellent performances of the present invention and with the good ultraviolet absorbers of EVA film conformability.Octabenzone can absorb the UV-light of 240-340 nanometer, has that look shallow is, nontoxic, consistency is good, transport property is little, be easy to characteristics such as processing.It has maximum provide protection to polymkeric substance, and helps to reduce color and luster, delays the rational loss of energy of yellowing and blocker simultaneously.
2-(2 '-hydroxyl-3 ', 5 '-two uncle's phenyl)-5-chlorination benzotriazole can the strong absorption wavelength be the ultraviolet ray of 270～380 nanometers, and chemical stability is good, and volatility is minimum.With polyolefinic compatible lover, add in the product of the present invention, have good heat-resisting sublimability, washing fastness, gasproof body fadedness and mechanical property retentivity are with antioxidant and with being significant synergistic effect.Above in the present invention two kinds of ultraviolet absorbers additions are 0.6-1.5%.
Stablizer, 2-(2 '-hydroxyl-the 3 '-tertiary butyl-5 '-aminomethyl phenyl)-5-chlorinated benzotriazole, two (2,2,6, the 6-tetramethyl-piperidyl) sebate, with oxidation inhibitor and usefulness, thermotolerance can be improved,, the light stabilising effect can be further improved with ultraviolet absorbers and with synergy is also arranged.
Three (1,2,2,6,6-Pempiten base) phosphorous acid ester and 4-benzoyloxy-2,2,6, the 6-tetramethyl piperidine though their itselfs do not absorb ultraviolet ability, can be caught the living radical that polymer degradation produces, the energy of hydroperoxide decomposition and transmission excited state molecule etc., the light stabilized efficacy is more than 20 times of general UV light absorber, with oxidation inhibitor and UV light absorber and usefulness, has good synergistic effect.In the present invention, more than four kinds of stablizers mix and use, the stablizer addition is 0.2-0.8%
Stopper molecule and chain free radical reaction form the low activity free radical that the non-free radical material maybe can not cause, thereby polymerization is stopped, can be rapidly and free radical effect and make chain reaction terminated material.Commonly used have polyphenol (as Resorcinol, p-ten.-butylcatechol), quinones, polyamine, aromatic nitro compound, nitrogen oxide, organic sulfide and an oxygen etc.When storing or transport monomer and distillation purifying monomer,, also often be called stablizer in order to prevent the more added stoppers of polymerization.
In the present invention, we have tested stopper influencing on the technology of EVA product stability have been guaranteed resin, prepreg package stability at room temperature for reaching, both reached and to regulate the working life that makes it certain, do not influence the final curing speed of goods again, adopted composite polymerization inhibitor.Among the present invention, adopt the mantoquita of Resorcinol and tert-butyl catechol and trace to realize above-mentioned effect, add a certain amount of para benzoquinone, 2 simultaneously, 2 methylene radical-two (4-methyl-6-tert butyl phenol), 2-Tert. Butyl Hydroquinone and MEHQ, eliminate the free radical that produces in the resin storage, minimum to the gel time influence when improving the resin package stability.Among the present invention, this type of material addition is 0.3-0.7%.
In the present invention, add the cohesive force of an amount of tackifier increase product and glass, polysilicon films.General tackifier are mainly as mainly being that the initial bonding strength that improves product closes and holds viscous force in the sizing agent.According to the difference of solubleness in ABA block polymer thermoplastic elastomer two-phase, tackifier commonly used are divided three classes.First kind solubility parameter is generally all lower, can only be compatible with nonpolar rubber phase, petroleum pitch, aliphatics and alicyclic petroleum resin, rosin and staybelite resin, terpine resin all belong to this class, though they are given with EVA initial bonding strength and stripping strength, have but reduced EVA Young's modulus and cohesive strength.
Although EVA itself has certain viscosity, the tackiness agent bonding strength by its generation is still not enough separately for many application.Be no lack of EVA film product now, its synthetic elastomer then lacks viscosity, no matter is to himself or other surfaces.Therefore, for increasing their viscosity, add tackifier resin.The relative molecular mass of common tackifier is 200～1500, and big and inflexible structure are generally arranged.They are thermoplastic, and at room temperature are generally the amorphous glass body.They are broad softening temperature, are that liquid is to the crisp hard solid of fusing point up to 190 ℃ from room temperature.They generally quite are soluble in aliphatic hydrocarbon, aromatic hydrocarbon and many typical organic solvents.From the viewpoint that viscosity, tensile strength, tint retention and resistance to oxidation become fragile, the tackifying resin of selection can influence the quality of tackiness agent.In the present invention, by the silicone based tackifier of hydrogenation or polymerization-stable, with the EVA film good matching property is arranged, second phase can not occur, its tackify effect is better than other tackifier simultaneously, comprises the rosin ester class of hydrogenation or polymerization-stable.EVA film tensile strength can reduce along with the increase of tackifier concentration, and the reduced rate of different tackifier is also different.In the present invention, tackifier are that phenyltrimethoxysila,e, dimethoxydiphenylsilane are main with β-(3,4-epoxycyclohexyl ethyl) Trimethoxy silane, and addition is 0.3-1%
Embodiment
Embodiment 1, modification vinyl acetate between to for plastic 20%, ethene 69.2%, two (1,2-methyl diethoxy is silica-based) ethane 3.3%, sebacic acid two (2,2,6,6-tetramethyl--4-piperidines) ester 0.6%, 2,2 methylene radical-two (4-methyl-6-tert butyl phenol) 0.85%, 2,4,6-tri-thiol-1,3,5-triaizine compounds 1.2%, 1-bis(t-butylperoxy)-3,3,5-trimethyl-cyclohexane 0.45%, 1% Platinic chloride methanol solution 2%, tert-butyl catechol 0.35%, MEHQ 0.2%, three (1,2,2,6,6-Pempiten base) phosphorous acid ester 0.2%, 2-(2 '-hydroxyl-3 ', 5 '-two uncle's phenyl)-5-chlorination benzotriazole 0.35%, β-(3,4-epoxycyclohexyl ethyl) Trimethoxy silane 0.6%, Octabenzone 0.5%, two (2,2,6, the 6-tetramethyl-piperidyl) sebate 0.2%
This product high comprehensive performance is applicable to the encapsulation of photovoltaic solar assembly under the general weather condition, has good anti-xanthochromia, ageing resistance.
Embodiment 2, modification vinyl acetate between to for plastic 33.55%, ethene 55%, two (1,2-methyl diethoxy is silica-based) ethane 1.5%, two (1, the 2-triethoxy is silica-based) ethane 3%, the two dodecane esters 0.25% of thio-2 acid, 2,2 methylene radical-two (4-methyl-6-tert butyl phenol) 0.35%, piperidyl oxidation inhibitor 0.3%, 2,4,6-tri-thiol-1,3,5-triaizine compounds 1.5%, 1,1-bis(t-butylperoxy)-3,3,5-trimethyl-cyclohexane 0.4%, 1% triphenylphosphine platinum chloride methanol solution 1.5%, 2-Tert. Butyl Hydroquinone 0.45%, MEHQ 0.15%, 2-('-hydroxyl-3 ', 5 '-two uncle's phenyl)-5-chlorination benzotriazole 0.7%, β-(3,4-epoxycyclohexyl ethyl) Trimethoxy silane 0.15%, dimethoxydiphenylsilane 0.35%, 4-benzoyloxy-2,2,6,6-tetramethyl piperidine 0.5%, 2-(2 '-hydroxyl-the 3 '-tertiary butyl-5 '-aminomethyl phenyl)-5-chlorinated benzotriazole 0.35%.
This product has good cold-resistant thermal cycling characteristic, is applicable to the encapsulation of photovoltaic solar assembly under the extremely hot and cold circulation weather condition, and has good anti-xanthochromia, ageing resistance.
Example 3, vinyl acetate between to for plastic 30%, ethene 60.9%, two (1, the 2-triethoxy is silica-based) ethane 3%, the two dodecane esters 0.35% of thio-2 acid, 2,2 methylene radical-two (4-methyl-6-tert butyl phenol) 0.45%, piperidyl oxidation inhibitor 0.3%, N, a N '-penylene bismaleimides 0.25%, 2,4,6-tri-thiol-1,3,5-triaizine compounds 0.3%, tri-thiol-1,3,5-triaizine compounds 0.4%, 1% Platinic chloride methanol solution 1.5%, 2,2 methylene radical-two (4-methyl-6-tert butyl phenol) 0.4%, MEHQ 0.15%, 2-('-hydroxyl-3 ', 5 '-two uncle's phenyl)-5-chlorination benzotriazole 0.7%, β-(3,4-epoxycyclohexyl ethyl) Trimethoxy silane 0.3%, phenyltrimethoxysila,e 0.5%, 4-benzoyloxy-2,2,6,6-tetramethyl piperidine 0.2%, two (2,2,6, the 6-tetramethyl-piperidyl) sebate 0.3%.
This product has good moisture-proof thermal property, is applicable to the encapsulation of photovoltaic solar assembly under the warm condition, and has good anti-xanthochromia, ageing resistance.
Claims (4)
1. one kind is used for photovoltaic module encapsulation EVA film, it is characterized in that, be with treated vinyl acetate between to for plastic and ethene under heating condition, add an amount of vulcanizing agent, catalyzer and stopper, synthesizing ethylene-acetate ethylene copolymer, i.e. EVA film.
2. the photovoltaic module encapsulation EVA film that is used for according to claim 1, it is characterized in that, wherein: modification vinyl acetate between to for plastic 20%, ethene 69.2%, two (1,2-methyl diethoxy is silica-based) ethane 3.3%, sebacic acid two (2,2,6,6-tetramethyl--4-piperidines) ester 0.6%, 2,2 methylene radical-two (4-methyl-6-tert butyl phenol) 0.85%, 2,4,6-tri-thiol-1,3,5-triaizine compounds 1.2%, 1-bis(t-butylperoxy)-3,3,5-trimethyl-cyclohexane 0.45%, 1% Platinic chloride methanol solution 2%, tert-butyl catechol 0.35%, MEHQ 0.2%, three (1,2,2,6,6-Pempiten base) phosphorous acid ester 0.2%, 2-(2 '-hydroxyl-3 ', 5 '-two uncle's phenyl)-5-chlorination benzotriazole 0.35%, β-(3,4-epoxycyclohexyl ethyl) Trimethoxy silane 0.6%, Octabenzone 0.5%, two (2,2,6, the 6-tetramethyl-piperidyl) sebate 0.2%.
3. the photovoltaic module encapsulation EVA film that is used for according to claim 1, it is characterized in that, wherein: modification vinyl acetate between to for plastic 33.55%, ethene 55%, two (1,2-methyl diethoxy is silica-based) ethane 1.5%, two (1, the 2-triethoxy is silica-based) ethane 3%, the two dodecane esters 0.25% of thio-2 acid, 2,2 methylene radical-two (4-methyl-6-tert butyl phenol) 0.35%, piperidyl oxidation inhibitor 0.3%, 2,4,6-tri-thiol-1,3,5-triaizine compounds 1.5%, 1,1-bis(t-butylperoxy)-3,3,5-trimethyl-cyclohexane 0.4%, 1% triphenylphosphine platinum chloride methanol solution 1.5%, 2-Tert. Butyl Hydroquinone 0.45%, MEHQ 0.15%, 2-('-hydroxyl-3 ', 5 '-two uncle's phenyl)-5-chlorination benzotriazole 0.7%, β-(3,4-epoxycyclohexyl ethyl) Trimethoxy silane 0.15%, dimethoxydiphenylsilane 0.35%, 4-benzoyloxy-2,2,6,6-tetramethyl piperidine 0.5%, 2-(2 '-hydroxyl-the 3 '-tertiary butyl-5 '-aminomethyl phenyl)-5-chlorinated benzotriazole 0.35%.
4. the photovoltaic module encapsulation EVA film that is used for according to claim 1, it is characterized in that, wherein: vinyl acetate between to for plastic 30%, ethene 60.9%, two (1, the 2-triethoxy is silica-based) ethane 3%, the two dodecane esters 0.35% of thio-2 acid, 2,2 methylene radical-two (4-methyl-6-tert butyl phenol) 0.45%, piperidyl oxidation inhibitor 0.3%, N, a N '-penylene bismaleimides 0.25%, 2,4,6-tri-thiol-1,3,5-triaizine compounds 0.3%, tri-thiol-1,3,5-triaizine compounds 0.4%, 1% Platinic chloride methanol solution 1.5%, 2,2 methylene radical-two (4-methyl-6-tert butyl phenol) 0.4%, MEHQ 0.15%, 2-('-hydroxyl-3 ', 5 '-two uncle's phenyl)-5-chlorination benzotriazole 0.7%, β-(3,4-epoxycyclohexyl ethyl) Trimethoxy silane 0.3%, phenyltrimethoxysila,e 0.5%, 4-benzoyloxy-2,2,6,6-tetramethyl piperidine 0.2%, two (2,2,6, the 6-tetramethyl-piperidyl) sebate 0.3%.
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| CN105038624A (en) * | 2015-08-05 | 2015-11-11 | 乐凯胶片股份有限公司 | Photovoltaic EVA packaging adhesive film |
| CN108461561A (en) * | 2018-04-02 | 2018-08-28 | 格润智能光伏南通有限公司 | A kind of photovoltaic module of high-photoelectric transformation efficiency |
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| CN105038624A (en) * | 2015-08-05 | 2015-11-11 | 乐凯胶片股份有限公司 | Photovoltaic EVA packaging adhesive film |
| CN108461561A (en) * | 2018-04-02 | 2018-08-28 | 格润智能光伏南通有限公司 | A kind of photovoltaic module of high-photoelectric transformation efficiency |
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Application publication date: 20110831 |