WO2017150217A1 - Feuille de résine, verre stratifié, et module de cellule solaire - Google Patents

Feuille de résine, verre stratifié, et module de cellule solaire Download PDF

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Publication number
WO2017150217A1
WO2017150217A1 PCT/JP2017/005905 JP2017005905W WO2017150217A1 WO 2017150217 A1 WO2017150217 A1 WO 2017150217A1 JP 2017005905 W JP2017005905 W JP 2017005905W WO 2017150217 A1 WO2017150217 A1 WO 2017150217A1
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Prior art keywords
resin sheet
mass
vinyl acetate
ethylene
parts
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PCT/JP2017/005905
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English (en)
Japanese (ja)
Inventor
理恵 大土井
洋文 善光
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三井化学東セロ株式会社
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/14—Peroxides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
    • C08K5/3477—Six-membered rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • 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

Definitions

  • the present invention relates to a resin sheet, a laminated glass, and a solar cell module.
  • An ethylene / vinyl acetate copolymer is widely used for an interlayer film for laminated glass, a solar cell encapsulant, a building material and the like because of its excellent insulation and high transparency.
  • Patent Document 1 International Publication No. 2005/090504.
  • Patent Document 1 discloses a sheet-like adhesive containing an ethylene / vinyl acetate copolymer and an organic peroxide.
  • An organic peroxide is used as the crosslinking agent, and a cyanurate-based or acrylate-based compound is generally used as the crosslinking assistant.
  • a laminated glass or a solar cell module using a conventional resin sheet using an ethylene-vinyl acetate copolymer has poor transparency (haze), bubbles are generated, and a resin sheet is not formed. It has become clear that there are problems such as gelation during molding. As described above, the present inventors have found that there is still room for improvement in terms of achieving compatibility of transparency, bubble prevention and gel suppression with a resin sheet using a conventional ethylene-vinyl acetate copolymer. It was.
  • the present invention has been made in view of the above circumstances, and provides a resin sheet made of an ethylene / vinyl acetate copolymer that is excellent in transparency and bubble-preventing properties and in which the generation of gel is suppressed.
  • the inventors of the present invention have intensively studied in order to achieve the above-mentioned problems.
  • the inventors have found that it can be improved and have reached the present invention.
  • the following resin sheet, laminated glass and solar cell module are provided.
  • a resin sheet used for an interlayer film for laminated glass or a solar cell sealing material An ethylene / vinyl acetate copolymer; A carbonate-based organic peroxide as a crosslinking agent; A cyanurate compound which is a crosslinking aid; Including The content of the carbonate organic peroxide in the resin sheet is 1.0 part by mass or more and 1.5 parts by mass or less with respect to 100 parts by mass of the ethylene / vinyl acetate copolymer, The resin sheet whose content of the said cyanurate compound in the said resin sheet is 1.2 mass parts or more and 1.5 mass parts or less with respect to 100 mass parts of said ethylene-vinyl acetate copolymers.
  • An intermediate film for glass comprising the resin sheet according to any one of the above [1] to [8]; Transparent substrates provided on both surfaces of the interlayer film for laminated glass, Laminated glass with.
  • Transparent substrates provided on both surfaces of the interlayer film for laminated glass, Laminated glass with.
  • a resin sheet made of an ethylene / vinyl acetate copolymer that is excellent in transparency and bubble prevention properties and suppresses the generation of gel.
  • Resin sheet The resin sheet according to the present embodiment is a resin sheet used for an interlayer film for laminated glass or a solar cell encapsulant, and an ethylene / vinyl acetate copolymer and a carbonate organic peroxide that is a cross-linking agent. And a cyanurate compound which is a crosslinking aid. And the content of the carbonate organic peroxide in the resin sheet is 1.0 part by mass or more and 1.5 parts by mass or less with respect to 100 parts by mass of the ethylene / vinyl acetate copolymer, The content of the cyanurate compound in the resin sheet is 1.2 parts by mass or more and 1.5 parts by mass or less with respect to 100 parts by mass of the ethylene / vinyl acetate copolymer.
  • the inventors of the present invention have made extensive studies in order to provide a resin sheet made of an ethylene / vinyl acetate copolymer that is excellent in transparency and bubble prevention properties, and in which the generation of gel is suppressed.
  • a resin sheet made of an ethylene / vinyl acetate copolymer that is excellent in transparency and bubble prevention properties, and in which the generation of gel is suppressed.
  • a carbonate organic peroxide and a cyanurate compound as constituents of the resin sheet, and by setting the blending ratio thereof within the above range, transparency, bubble prevention and gel suppression are well balanced. I found that it can be improved. That is, the resin sheet according to the present embodiment is excellent in transparency and bubble prevention properties and can suppress the generation of gel.
  • the mass ratio of the content of the cyanurate compound to the content of the carbonate organic peroxide in the resin sheet according to the present embodiment is preferably 0.9 or more and 1.5 or less.
  • the total content of the carbonate organic peroxide and the cyanurate compound in the resin sheet according to the present embodiment is preferably 2.3 parts by mass or more with respect to 100 parts by mass of the ethylene / vinyl acetate copolymer. It is 2.8 parts by mass or less.
  • the average film thickness of the resin sheet according to this embodiment is not particularly limited, but is preferably 0.2 mm or more and 2.0 mm or less.
  • the average film thickness of the resin sheet is equal to or more than the above lower limit value, the mechanical strength of the resin sheet can be further improved, and thermal shrinkage of the resin sheet can be suppressed.
  • the average film thickness of the resin sheet is not more than the above upper limit value, damage of other members such as a transparent substrate can be suppressed in the laminating step, and the laminate can be formed on the transparent substrate even at a relatively low temperature.
  • sufficient light transmittance can be ensured as the average film thickness of a resin sheet is below the said upper limit, and the solar cell module using it has a high photovoltaic power generation amount.
  • the content of the ethylene / vinyl acetate copolymer is preferably 80% by mass or more, more preferably 90% by mass or more, and still more preferably 95% when the entire resin component contained in the resin sheet is 100% by mass. It is at least 100% by mass, and particularly preferably 100% by mass. Thereby, it is possible to obtain a resin sheet excellent in balance of various properties such as transparency, adhesiveness, heat resistance, flexibility, appearance, cross-linking properties, electrical properties and extrusion moldability.
  • the content of the resin component is preferably 50% by mass or more, more preferably 70% by mass or more, still more preferably 80% by mass or more, and particularly preferably 90% by mass, when the resin sheet as a whole is 100% by mass. That's it. Thereby, it is possible to obtain a resin sheet excellent in balance of various properties such as transparency, adhesiveness, heat resistance, flexibility, appearance, cross-linking properties, electrical properties and extrusion moldability.
  • the resin sheet according to the present embodiment contains an ethylene / vinyl acetate copolymer as a main component.
  • the ethylene / vinyl acetate copolymer is a copolymer of ethylene and vinyl acetate, and is usually a random copolymer.
  • the melt flow rate (MFR) of the ethylene / vinyl acetate copolymer measured at 190 ° C. under a load of 2.16 kg is preferably 10 to 50 g / 10 min, more preferably. Is 10 to 40 g / 10 min, more preferably 10 to 30 g / 10 min.
  • the MFR of the ethylene / vinyl acetate copolymer can be adjusted by adjusting the polymerization temperature during the polymerization reaction, the polymerization pressure, and the molar ratio of the monomer concentration and the hydrogen concentration of the copolymerization monomer in the polymerization system. it can.
  • the MFR is not less than the above lower limit
  • the fluidity of the ethylene-based resin composition containing the ethylene / vinyl acetate copolymer is improved, and the moldability of the resin sheet becomes better.
  • the MFR is not more than the above upper limit value
  • the molecular weight is increased, so that adhesion to a roll surface such as a chill roll can be suppressed, and therefore, peeling is unnecessary and the resin sheet can be formed with a more uniform thickness.
  • a thick resin sheet of 0.1 mm or more can be easily formed.
  • a crosslinking characteristic improves, it can fully bridge
  • the content of vinyl acetate units in the ethylene / vinyl acetate copolymer is preferably 25% by mass to 35% by mass, more preferably 28% by mass to 35% by mass, and even more preferably 28% by mass to 33% by mass. % Or less.
  • the content of the vinyl acetate unit is within this range, the balance of crosslinkability, flexibility, weather resistance, and transparency is further improved.
  • the vinyl acetate content can be measured according to JIS K6730.
  • the resin sheet according to the present embodiment is used as a solar cell encapsulant, if the vinyl acetate content is within the above range, crosslinkability, flexibility, solar cell encapsulating sheet adhesion, and weather resistance. , Better balance of transparency and mechanical properties. In addition, when the solar cell encapsulating sheet is formed, the film formability is good.
  • the ethylene / vinyl acetate copolymer is preferably a binary copolymer consisting only of ethylene and vinyl acetate.
  • ethylene and vinyl acetate for example, vinyl formate, vinyl glycolate, vinyl propionate, vinyl benzoate.
  • a vinyl ester monomer such as acrylic acid, methacrylic acid, ethacrylic acid, or an acrylic monomer such as a salt or alkyl ester thereof; Good.
  • the amount of the copolymer component other than ethylene and vinyl acetate in the ethylene / vinyl acetate copolymer may be 0.5 mass% or more and 5 mass% or less. preferable.
  • Two or more kinds of ethylene / vinyl acetate copolymers having different vinyl acetate contents and MFR may be used in combination.
  • the total amount of these is preferably within the above range.
  • the method for producing the ethylene / vinyl acetate copolymer is not particularly limited, and can be produced by a known method.
  • a radical generator copolymerization of ethylene, vinyl acetate, and other copolymerization components as necessary in the presence or absence of a solvent or chain transfer agent at 500 to 4000 atm and 100 to 300 ° C Can be manufactured.
  • the resin sheet which concerns on this embodiment contains the carbonate type organic peroxide which is a crosslinking agent.
  • the crosslinking rate of the ethylene / vinyl acetate copolymer is improved by containing a carbonate-based organic peroxide.
  • the content of the carbonate-based organic peroxide in the resin sheet according to this embodiment is 1.0 part by mass or more and 1.5 parts by mass or less with respect to 100 parts by mass of the ethylene / vinyl acetate copolymer, preferably 1.1 parts by mass or more and 1.3 parts by mass or less.
  • the content of the carbonate-based organic peroxide is not less than the above lower limit, the cross-linking property of the resin sheet becomes good, and the heat resistance of the resin sheet is improved.
  • the graft reaction of the silane coupling agent to the main chain of the ethylene / vinyl acetate copolymer is improved, and the heat resistance and adhesiveness are further improved. Furthermore, the transparency of the resin sheet is improved.
  • the content of the carbonate-based organic peroxide is not more than the above upper limit value
  • the above cross-linking characteristics, heat resistance, and adhesiveness are good, and gelation during sheet molding can be suppressed, and the sheet appearance is good. Can be obtained.
  • the generation amount of decomposition products of carbonate-based organic peroxides can be reduced, and the generation of bubbles in the resin sheet can be suppressed.
  • the scorch resistance of the resin sheet can be improved.
  • Examples of the carbonate organic peroxide include t-butyl peroxyisopropyl carbonate, t-butyl peroxy-2-ethylhexyl carbonate, t-amyl peroxyisopropyl carbonate, t-amyl peroxy-2-ethylhexyl carbonate, and the like. Can be mentioned. Of these, t-butylperoxy-2-ethylhexyl carbonate is preferred.
  • the carbonate organic peroxides may be used alone or in a combination of two or more.
  • the resin sheet which concerns on this embodiment contains the cyanurate compound which is a crosslinking adjuvant from a viewpoint of improving crosslinking
  • the cyanurate compound for example, one or more selected from triallyl cyanurate, triallyl isocyanurate, and the like can be used. Among these, it is preferable that triallyl isocyanurate is included as a cyanurate compound.
  • Content of the cyanurate compound in the resin sheet which concerns on this embodiment is 1.2 mass parts or more and 1.5 mass parts or less with respect to 100 mass parts of ethylene-vinyl acetate copolymers, Preferably it is 1.2. It is not less than 1.4 parts by mass.
  • the content of the cyanurate compound is not less than the above lower limit
  • the cross-linking property of the resin sheet becomes good and the heat resistance of the resin sheet is improved.
  • the graft reaction of the silane coupling agent to the main chain of the ethylene / vinyl acetate copolymer is improved, and the heat resistance and adhesiveness are improved.
  • the transparency of the resin sheet is improved.
  • the content of the cyanurate compound is not more than the above upper limit value, the above-mentioned crosslinking characteristics, heat resistance, and adhesiveness are good, and further, the gelation at the time of sheet molding can be suppressed, and a resin sheet having a good sheet appearance can be obtained. Obtainable.
  • the scorch resistance of the resin sheet can be improved.
  • the resin sheet according to the present embodiment may further include a silane coupling agent.
  • the content of the silane coupling agent in the resin sheet according to this embodiment is preferably 0.1 to 5 parts by mass with respect to 100 parts by mass of the ethylene / vinyl acetate copolymer, and preferably 0.1 to 4 parts.
  • the amount is more preferably part by mass, and particularly preferably 0.1 to 3 parts by mass.
  • Adhesiveness improves that content of a silane coupling agent is more than the said lower limit.
  • the content of the silane coupling agent is not more than the above upper limit value, the balance between cost and performance is good, and deterioration of moisture permeability can be prevented.
  • adhesiveness with a surface side transparent protection member, a cell, an electrode, and a back surface side protection member becomes favorable, and adhesiveness also improves.
  • a conventionally well-known silane coupling agent can be used, and there is no restriction in particular.
  • vinyltriethoxysilane, vinyltrimethoxysilane, vinyltris ( ⁇ -methoxyethoxysilane), ⁇ -glycidoxypropyltrimethoxysilane, ⁇ -aminopropyltriethoxysilane, ⁇ -methacryloxypropyltrimethoxysilane Etc. can be used.
  • Preferred examples include ⁇ -glycidoxypropylmethoxysilane, ⁇ -aminopropyltriethoxysilane, ⁇ -methacryloxypropyltrimethoxysilane, vinyltriethoxysilane, and the like, which have good adhesion.
  • the resin sheet according to the present embodiment may further contain at least one additive selected from ultraviolet absorbers, light stabilizers, and heat stabilizers.
  • the amount of these additives is preferably 0.005 to 5 parts by mass with respect to 100 parts by mass of the ethylene / vinyl acetate copolymer.
  • the blending amount of the additive is within the above range, it is possible to sufficiently secure the effect of improving weather resistance stability and heat stability, and to prevent deterioration of transparency and adhesion to a glass plate. Therefore, it is preferable.
  • the ultraviolet absorber examples include 2-hydroxy-4-normal-octyloxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2,2-dihydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy.
  • Benzophenone ultraviolet absorbers such as -4-carboxybenzophenone and 2-hydroxy-4-N-octoxybenzophenone; 2- (2-hydroxy-3,5-di-t-butylphenyl) benzotriazole, 2- (2 Benzotrialisol ultraviolet absorbers such as -hydroxy-5-methylphenyl) benzotriazole; salicylic acid ester ultraviolet absorbers such as phenylsalicylate and p-octylphenylsalicylate are used.
  • Examples of the light stabilizer include bis (2,2,6,6-tetramethyl-4-piperidyl) sebacate, poly [ ⁇ 6- (1,1,3,3-tetramethylbutyl) amino-1,3, 5-triazine-2,4-diyl ⁇ ⁇ (2,2,6,6-tetramethyl-4-piperidyl) imino ⁇ hexamethylene ⁇ (2,2,6,6-tetramethyl-4-piperidyl) imino ⁇
  • Hindered amine light stabilizers, hindered piperidine light stabilizers and the like are preferably used.
  • heat-resistant stabilizers include tris (2,4-di-tert-butylphenyl) phosphite, bis [2,4-bis (1,1-dimethylethyl) -6-methylphenyl] ethyl ester.
  • Phosphorous acid tetrakis (2,4-di-tert-butylphenyl) [1,1-biphenyl] -4,4′-diylbisphosphonite, and bis (2,4-di-tert-butylphenyl) Phosphite heat stabilizers such as pentaerythritol diphosphite; lactone heat stabilizers such as the reaction product of 3-hydroxy-5,7-di-tert-butyl-furan-2-one and o-xylene; 3,3 ′, 3 ′′, 5,5 ′, 5 ′′ -hexa-tert-butyl-a, a ′, a ′′-(methylene-2,4,6-triyl) tri-p-cresol, 1,3 , 5-Trimethyl -2,4,6-tris (3,5-di-tert-butyl-4-hydroxyphenyl) benzylbenzene, pentaerythritol te
  • hindered phenol-based heat stabilizers examples thereof include hindered phenol-based heat stabilizers, sulfur-based heat stabilizers, amine-based heat stabilizers, etc. In addition, these can be used alone or in combination of two or more. A heat resistance stabilizer and a hindered phenol heat resistance stabilizer are preferred.
  • the resin sheet which concerns on this embodiment can contain suitably various components other than the various components detailed above in the range which does not impair the objective of this invention.
  • examples thereof include various polyolefins other than the ethylene / vinyl acetate copolymer, styrene-based, ethylene-based block copolymers, and propylene-based polymers. These may be contained in an amount of preferably 0.0001 to 50 parts by mass, more preferably 0.001 to 40 parts by mass with respect to 100 parts by mass of the ethylene / vinyl acetate copolymer.
  • the above additives can be appropriately contained.
  • a stirring mixer such as a Henschel mixer, tumbler or super mixer.
  • the obtained resin composition is put into, for example, a hopper of an extrusion sheet molding machine, and the resin composition is extruded into a sheet form from a T-die of the extrusion sheet molding machine while performing melt kneading to obtain a resin sheet.
  • the extrusion temperature range for example, the extrusion temperature is 100 to 250 ° C. When the extrusion temperature is within the above range, a better sheet can be obtained.
  • Laminated glass The use of the resin sheet according to this embodiment is not particularly limited, but it is preferably used as an interlayer film for laminated glass.
  • the laminated glass of this embodiment should just use the resin sheet which concerns on this embodiment as an intermediate film for laminated glasses.
  • the laminated glass according to the present embodiment is a laminated glass that is less likely to cause poor appearance.
  • FIG. 1 is a cross-sectional view schematically showing one embodiment of a laminated glass 100 of the present invention.
  • the laminated glass 100 includes an intermediate film 101 for laminated glass including the resin sheet according to the present embodiment, and a transparent substrate 103 provided on both surfaces of the intermediate film 101 for laminated glass.
  • the resin sheet according to the present embodiment is used as the laminated glass intermediate film 101, and the laminated glass intermediate film 101 is interposed between the two transparent substrates 103.
  • a method of heating and pressurizing is used. These processes are performed using, for example, a vacuum bag method, a nip roll method, or the like.
  • the interlayer film for laminated glass 101 is cured, and the interlayer film for laminated glass 101 and the two transparent substrates 103 can be bonded and integrated.
  • the above laminate is pre-pressed at a temperature of 80 to 120 ° C., and heat-treated at 100 to 150 ° C. for 10 minutes to 1 hour to crosslink the ethylene / vinyl acetate copolymer. Further, the heat treatment may be performed under pressure.
  • the transparent substrate 103 is, for example, a glass plate such as a green glass plate, a silicate glass plate, an inorganic glass plate, or an uncolored transparent glass plate; polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyethylene butyrate, polymethyl methacrylate
  • PET polyethylene terephthalate
  • PEN polyethylene naphthalate
  • PMMA polyethylene butyrate
  • a plastic substrate such as (PMMA) or a film can be used.
  • a glass plate is preferable in terms of weather resistance, impact resistance and the like.
  • the thickness of the transparent substrate 103 is generally about 1 to 20 mm.
  • the same transparent substrate 103 may be used for each of the transparent substrates 103 disposed on both surfaces of the laminated glass 100, or different base materials may be used in combination. The combination is determined in consideration of the strength of the base material and the use of the laminated glass.
  • Laminated glass 100 is used for various applications such as materials for buildings and vehicles (automobiles, railcars, ships); electronic devices such as plasma displays; doors and walls of various devices such as refrigerators and heat insulation devices. Can be used. Among these, it can be particularly suitably used for buildings.
  • Solar cell module The application of the resin sheet according to the present embodiment is not particularly limited, but is preferably used as a solar cell sealing material.
  • a solar cell encapsulant also referred to as a solar cell encapsulant sheet
  • a solar cell module is usually a crystal solar cell in which solar cell elements formed of single crystal silicon, polycrystalline silicon or the like are sandwiched between solar cell encapsulant sheets, and both front and back surfaces are covered with a protective sheet. Module.
  • a typical solar cell module includes a solar cell module protective sheet (front surface side transparent protective member) / light-receiving surface side sealing layer / solar cell element / back surface side sealing layer / solar cell module protective sheet (back surface side). (Protective member).
  • the solar cell encapsulant of the present embodiment is used to form one or both of the light-receiving surface side sealing layer and the back surface side sealing layer, and these sealing layers are made of a resin sheet. It can be formed by crosslinking.
  • the solar cell module which is one of the preferred embodiments of the present invention is not limited to the above-described configuration, and a part of each of the above layers is appropriately omitted or the above-described range within a range not impairing the object of the present invention.
  • Other layers can be provided as appropriate. Examples of the layer other than the above include an adhesive layer, a shock absorbing layer, a coating layer, an antireflection layer, a back surface rereflection layer, and a light diffusion layer. These layers are not particularly limited, but can be provided at appropriate positions in consideration of the purpose and characteristics of each layer.
  • the solar cell module 10 includes a plurality of solar cell elements 13, a pair of light-receiving surface side solar cell sealing material sheets 11 and back surface side solar cell sealing material sheets 12 that are sealed with the solar cell elements 13 interposed therebetween, and a front surface side.
  • a transparent protective member 14 and a back surface side protective member (back sheet) 15 are provided.
  • solar cell element 13 examples include silicon-based materials such as single crystal silicon, polycrystalline silicon, and amorphous silicon, and III-V and II-VI compound semiconductor systems such as gallium-arsenic, copper-indium-selenium, and cadmium-tellurium. Various solar cell elements can be used. In the solar cell module 10, the plurality of solar cell elements 13 are electrically connected in series via an interconnector 16 having a conducting wire and a solder joint.
  • Examples of the surface-side transparent protective member 14 include a glass plate; a transparent substrate such as a resin plate formed of an acrylic resin, polycarbonate, polyester, fluorine-containing resin, or the like.
  • the solar cell encapsulant sheet of this embodiment exhibits good adhesion to the surface side transparent protective member 14.
  • back surface side protection member (back sheet) 15 examples include single or multilayer sheets such as metals and various thermoplastic resin films. Examples thereof include metals such as tin, aluminum, and stainless steel; inorganic materials such as glass; various thermoplastic resin films formed of polyester, inorganic material-deposited polyester, fluorine-containing resin, polyolefin, and the like.
  • the back surface side protection member 15 may be a single layer or a multilayer.
  • the solar cell encapsulant sheet of this embodiment exhibits good adhesion to the back surface side protection member 15.
  • the manufacturing method of the solar cell module in this embodiment is not specifically limited, For example, the following method is mentioned.
  • a plurality of solar cell elements 13 that are electrically connected using the interconnector 16 are sandwiched between a pair of light receiving surface side solar cell sealing material sheets 11 and a back surface side solar cell sealing material sheet 12, and these light receiving surface sides are further sandwiched between them.
  • a laminated body is produced by sandwiching the solar cell encapsulant sheet 11 and the back side solar cell encapsulant sheet 12 between the front side transparent protective member 14 and the back side protective member 15.
  • the laminate is heated to receive the light-receiving surface side solar cell sealing material sheet 11 and the back surface side solar cell sealing material sheet 12, the light receiving surface side solar cell sealing material sheet 11 and the front surface side transparent protective member 14, and the back surface side.
  • the solar cell sealing material sheet 12 and the back surface side protection member 15 are bonded.
  • a resin sheet is prepared in advance, and is subjected to pressure bonding at a temperature at which the resin sheet melts.
  • the lamination temperature is 145 to 170 ° C.
  • the vacuum pressure is 10 Torr or less. Heat for 5-10 minutes under vacuum.
  • pressurization by atmospheric pressure is performed for about 2 to 30 minutes, and a module having the configuration as described above can be formed.
  • the resin sheet has excellent cross-linking properties by containing a specific cross-linking agent, and it is not necessary to go through a two-step bonding process in forming the module, and can be completed in a short time at a high temperature. This can greatly improve module productivity. It is also possible to go through a two-step bonding process using an oven or the like. In the case of going through a two-step bonding process, for example, the module is produced by heating at 120 to 170 ° C. for 1 to 120 minutes. It is also possible.
  • Example 1 Production of Resin Sheet For Examples 1 to 6 and Comparative Examples 1 to 6, resin compositions were prepared as follows. First, an ethylene / vinyl acetate copolymer (EVA), a crosslinking agent, a crosslinking aid, a silane coupling agent, a light stabilizer, an ultraviolet absorber, and a heat stabilizer are blended in the formulation shown in Table 1 to form a resin composition. Got.
  • EVA ethylene / vinyl acetate copolymer
  • each component in Table 1 is a mass part.
  • the detail of each component in Table 1 is as follows.
  • EVA1 Ethylene / vinyl acetate copolymer (vinyl acetate content 28% by mass, MFR: 15 g / 10 min)
  • EVA2 ethylene-vinyl acetate copolymer (vinyl acetate content 28 mass%, MFR: 30 g / 10 min)
  • Crosslinking agent t-butylperoxy-2-ethylhexyl carbonate
  • Crosslinking aid triallyl isocyanurate
  • Silane coupling agent ⁇ -methacryloxypropyltrimethoxysilane
  • Light stabilizer bis (2,2,6 , 6-tetramethyl-4-piperidyl) sebacate /
  • UV absorber 2-hydroxy-4-normal-octyloxybenzophenone / heat stabilizer: octadecyl-3- (3,5-di-tert-but
  • the laminated body of the resin sheet and glass plate obtained by scorch-proof evaluation was produced.
  • Lamination was performed using a vacuum laminator (manufactured by NPC: LM-110 ⁇ 160-S) at a hot plate temperature of 130 ° C., a vacuum time of 3 minutes, and a pressurization time of 30 minutes.
  • the obtained laminate was put into an oven set at 100 ° C. (manufactured by Tabai Espec: PHH-401).
  • the resin sheets of Examples 1 to 6 were excellent in transparency and bubble prevention properties, and the generation of gel was suppressed.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Photovoltaic Devices (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Power Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Sealing Material Composition (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention décrit une feuille de résine utilisée comme film de couche intermédiaire dans un verre stratifié ou comme élément de scellement de cellule solaire, et contient un copolymère d'éthylène/acétate de vinyle, un peroxyde organique à base de carbonate, qui sert d'agent de réticulation, et un composé cyanurate, qui sert d'auxiliaire de réticulation. La quantité du peroxyde organique à base de carbonate contenu dans la feuille de résine est de 1,0 partie en masse à 1,5 partie en masse, inclus, pour 100 parties en masse du copolymère d'éthylène/acétate de vinyle, et la quantité du composé cyanurate contenu dans la feuille de résine est de 1,2 partie en masse à 1,5 partie en masse, inclus, pour 100 parties en masse du copolymère d'éthylène/acétate de vinyle.
PCT/JP2017/005905 2016-02-29 2017-02-17 Feuille de résine, verre stratifié, et module de cellule solaire WO2017150217A1 (fr)

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JP2016-037895 2016-02-29

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Cited By (1)

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WO2019159852A1 (fr) * 2018-02-14 2019-08-22 三井・ダウポリケミカル株式会社 Composition de résine pour film de couche intermédiaire de verre feuilleté ou matériau d'encapsulation de cellule solaire, film de couche intermédiaire de verre feuilleté, verre feuilleté, matériau d'encapsulation de cellule solaire, et module de cellule solaire

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JP2012052004A (ja) * 2010-08-31 2012-03-15 Dainippon Printing Co Ltd 太陽電池モジュール用封止材の製造方法
JP2013093392A (ja) * 2011-10-25 2013-05-16 Bridgestone Corp エチレン−酢酸ビニル共重合体シートの製造方法
JP2014015544A (ja) * 2012-07-10 2014-01-30 Bridgestone Corp エチレン−酢酸ビニル共重合体シート、並びにこれを用いた合わせガラス用中間膜、合わせガラス、太陽電池用封止膜及び太陽電池
WO2015053314A1 (fr) * 2013-10-10 2015-04-16 三井化学株式会社 Ensemble de feuilles pour encapsulation de cellule solaire et module de cellule solaire
JP2015192000A (ja) * 2014-03-28 2015-11-02 株式会社ブリヂストン 太陽電池用封止膜の製造方法
WO2016125793A1 (fr) * 2015-02-04 2016-08-11 三井化学東セロ株式会社 Film d'étanchéité de pile solaire, rouleau de film d'étanchéité de pile solaire, et procédé de fabrication de module de piles solaires

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Publication number Priority date Publication date Assignee Title
JP2012052004A (ja) * 2010-08-31 2012-03-15 Dainippon Printing Co Ltd 太陽電池モジュール用封止材の製造方法
JP2013093392A (ja) * 2011-10-25 2013-05-16 Bridgestone Corp エチレン−酢酸ビニル共重合体シートの製造方法
JP2014015544A (ja) * 2012-07-10 2014-01-30 Bridgestone Corp エチレン−酢酸ビニル共重合体シート、並びにこれを用いた合わせガラス用中間膜、合わせガラス、太陽電池用封止膜及び太陽電池
WO2015053314A1 (fr) * 2013-10-10 2015-04-16 三井化学株式会社 Ensemble de feuilles pour encapsulation de cellule solaire et module de cellule solaire
JP2015192000A (ja) * 2014-03-28 2015-11-02 株式会社ブリヂストン 太陽電池用封止膜の製造方法
WO2016125793A1 (fr) * 2015-02-04 2016-08-11 三井化学東セロ株式会社 Film d'étanchéité de pile solaire, rouleau de film d'étanchéité de pile solaire, et procédé de fabrication de module de piles solaires

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Publication number Priority date Publication date Assignee Title
WO2019159852A1 (fr) * 2018-02-14 2019-08-22 三井・ダウポリケミカル株式会社 Composition de résine pour film de couche intermédiaire de verre feuilleté ou matériau d'encapsulation de cellule solaire, film de couche intermédiaire de verre feuilleté, verre feuilleté, matériau d'encapsulation de cellule solaire, et module de cellule solaire
CN111801303A (zh) * 2018-02-14 2020-10-20 三井—陶氏聚合化学株式会社 夹层玻璃中间膜或太阳能电池密封材料用树脂组合物、夹层玻璃中间膜、夹层玻璃、太阳能电池密封材料及太阳能电池模组
JPWO2019159852A1 (ja) * 2018-02-14 2021-01-28 三井・ダウポリケミカル株式会社 合わせガラス中間膜または太陽電池封止材用樹脂組成物、合わせガラス中間膜、合わせガラス、太陽電池封止材および太陽電池モジュール
JP7032511B2 (ja) 2018-02-14 2022-03-08 三井・ダウポリケミカル株式会社 合わせガラス中間膜、および合わせガラス
JP2022075689A (ja) * 2018-02-14 2022-05-18 三井・ダウポリケミカル株式会社 合わせガラス中間膜または太陽電池封止材用樹脂組成物、合わせガラス中間膜、合わせガラス、太陽電池封止材および太陽電池モジュール
CN111801303B (zh) * 2018-02-14 2022-11-08 三井—陶氏聚合化学株式会社 夹层玻璃中间膜或太阳能电池密封材料用树脂组合物、夹层玻璃中间膜、夹层玻璃、太阳能电池密封材料及太阳能电池模组
JP7254226B2 (ja) 2018-02-14 2023-04-07 三井・ダウポリケミカル株式会社 合わせガラス中間膜または太陽電池封止材用樹脂組成物、合わせガラス中間膜、合わせガラス、太陽電池封止材および太陽電池モジュール
JP7254226B6 (ja) 2018-02-14 2023-04-21 三井・ダウポリケミカル株式会社 合わせガラス中間膜または太陽電池封止材用樹脂組成物、合わせガラス中間膜、合わせガラス、太陽電池封止材および太陽電池モジュール

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