WO2010024349A1 - Feuille polymère et procédé de fabrication à cet effet, et feuille de scellement de cellule de batterie solaire et module de batterie solaire utilisant ladite feuille polymère - Google Patents

Feuille polymère et procédé de fabrication à cet effet, et feuille de scellement de cellule de batterie solaire et module de batterie solaire utilisant ladite feuille polymère Download PDF

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WO2010024349A1
WO2010024349A1 PCT/JP2009/064993 JP2009064993W WO2010024349A1 WO 2010024349 A1 WO2010024349 A1 WO 2010024349A1 JP 2009064993 W JP2009064993 W JP 2009064993W WO 2010024349 A1 WO2010024349 A1 WO 2010024349A1
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polymer
polymer sheet
sheet according
support
sheet
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PCT/JP2009/064993
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English (en)
Japanese (ja)
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晶 畠山
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富士フイルム株式会社
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    • 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
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/048—Forming gas barrier coatings
    • 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
    • C08J2400/00—Characterised by the use of unspecified polymers
    • C08J2400/14—Water soluble or water swellable polymers, e.g. aqueous gels
    • 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 polymer sheet having a good water vapor barrier property, a production method thereof, a solar cell sealing sheet and a solar cell module using the polymer sheet.
  • the water vapor barrier sheet is used for packaging applications, solar cells and the like. Particularly in recent years, with increasing interest in global and global warming issues, great expectations are placed on solar cells to suppress carbon dioxide emissions, and the importance of water vapor barrier sheets is increasing.
  • a solar cell does not use a single solar cell element (cell), and several to several tens of solar cell elements are wired in series and in parallel to form a unit. This unit is called a solar cell module.
  • the surface side where sunlight hits is covered with a glass surface, and the inside is filled with a filler made of thermoplastics (especially ethylene-vinyl acetate copolymer). It is the structure protected by the sheet
  • the back surface sealing sheet is required to have a weather resistance and a low water vapor transmission rate. This is because wiring permeates due to the permeation of moisture, which may adversely affect the output of the module. Therefore, a barrier sheet having a very high water vapor barrier property and weather resistance is required as a back surface sealing sheet for solar cells.
  • barrier sheets have been conventionally known.
  • the example of the barrier layer which vacuum-deposited metals, such as aluminum, is described (refer patent document 1).
  • this method is disadvantageous in terms of cost because it requires a large vacuum device for manufacturing.
  • a metal vapor deposition layer has electroconductivity, when using it for a solar cell, there exists a possibility that an electric current may leak.
  • a method of using a polymer barrier layer instead of a nonmetallic inorganic substance is also known (for example, see Patent Document 3).
  • This method uses a barrier film in which polyester and a fluorine-based polymer are bonded together.
  • an adhesive is required to bond the support and the fluorine-based polymer sheet (see FIG. 3).
  • the pressure-sensitive adhesive is generally inferior in weather resistance as compared with a support or a fluorine-based polymer sheet. Therefore, when the solar cell module is used outdoors for a long period of time, there may be a disadvantage that peeling occurs between the support / fluorine polymer sheet.
  • this method requires a step of bonding two films using an adhesive, and there is a problem that the manufacturing method becomes complicated.
  • This invention makes it a subject to solve the said conventional problems and to achieve the following objectives. That is, a polymer sheet that can be easily produced and has sufficient water vapor barrier properties and weather resistance, a method for producing the polymer sheet, and a solar cell sealing sheet and a solar cell module using the polymer sheet The purpose is to provide.
  • Means for solving the above problems are as follows. That is, ⁇ 1> After having a polymer layer containing a polymer containing a repeating unit represented by the following general formula (1) on the support, the polymer layer is applied with a coating solution containing an aqueous dispersion of the polymer, The polymer sheet is provided by being dried.
  • X 1 , X 2 or X 3 represents a hydrogen atom, a fluorine atom, a chlorine atom or a perfluoroalkyl group having 1 to 3 carbon atoms.
  • the support is formed of at least one selected from a polyester resin, a polycarbonate resin, a polystyrene resin, an acrylic resin, and a polyimide resin.
  • the repeating unit represented by the general formula (1) is represented by at least one of the following general formulas (2) to (4): .
  • ⁇ 4> The polymer sheet according to any one of ⁇ 1> to ⁇ 3>, wherein the polymer layer has a thickness of 1 ⁇ m to 20 ⁇ m.
  • ⁇ 5> The polymer sheet according to any one of ⁇ 1> to ⁇ 4>, wherein the polymer layer is heated at a temperature of 200 ° C. to 360 ° C. for 5 seconds to 30 minutes after forming the polymer layer.
  • ⁇ 6> The polymer sheet according to any one of ⁇ 1> to ⁇ 5>, wherein the support has a thickness of 30 ⁇ m to 400 ⁇ m.
  • ⁇ 7> The polymer sheet according to any one of ⁇ 1> to ⁇ 6>, wherein the support includes an ultraviolet absorber.
  • ⁇ 8> Set a sample in a 60 mm diameter moisture-permeable cup containing about 1 g of calcium chloride, seal the periphery of the sample with a wood alloy, and then place the moisture-permeable cup in an atmosphere of 25 ° C./60% RH for 2 hours.
  • the weight after humidified and w 1 after the moisture-permeable cup and stored for 60 days in an atmosphere of 25 °C / 90% RH, 2 hr tone in an atmosphere of RH 25 ° C. / 60% the moisture permeable cup
  • the polymer sheet according to any one of ⁇ 1> to ⁇ 7>, wherein moisture permeability expressed when the weight w 2 after being wet is satisfied satisfies the following formula 1.
  • a solar cell sealing sheet comprising the polymer sheet according to any one of ⁇ 1> to ⁇ 8>.
  • a solar cell module comprising the solar cell sealing sheet according to ⁇ 9>.
  • X 1 , X 2 or X 3 represents a hydrogen atom, a fluorine atom, a chlorine atom or a perfluoroalkyl group having 1 to 3 carbon atoms.
  • X 1 , X 2 or X 3 represents a hydrogen atom, a fluorine atom, a chlorine atom or a perfluoroalkyl group having 1 to 3 carbon atoms.
  • X 1 , X 2 or X 3 represents a hydrogen atom, a fluorine atom, a chlorine atom or a perfluoroalkyl group having 1 to 3 carbon atoms.
  • ⁇ 14> The method for producing a polymer sheet according to any one of ⁇ 11> to ⁇ 13>, wherein the polymer content in the aqueous medium is 5% by mass to 55% by mass.
  • ⁇ 15> The method for producing a polymer sheet according to any one of ⁇ 11> to ⁇ 14>, wherein the aqueous medium contains a surfactant.
  • the polymer sheet can be easily produced, and has sufficient water vapor barrier properties and weather resistance, and the production thereof.
  • a method, and a solar cell sealing sheet and a solar cell module using the polymer sheet can be provided.
  • FIG. 1 is an end view showing an outline of a polymer sheet of the present invention.
  • FIG. 2 is a schematic view showing an example of the solar cell device of the present invention.
  • FIG. 3 is an end view showing an outline of a conventional polymer sheet.
  • the polymer sheet of the present invention has a polymer layer containing a polymer on a support, and the polymer layer is provided by drying after a coating liquid containing an aqueous dispersion of the polymer is applied.
  • the material for forming the support is not particularly limited and may be appropriately selected depending on the purpose.
  • examples thereof include polyester resin, polycarbonate resin, polystyrene resin, acrylic resin, and polyimide resin. From the viewpoint of strength and the like, a polyester resin and a polycarbonate resin are preferable. Among these, polyethylene terephthalate and polyethylene naphthalate are particularly preferable. In addition, these may be used individually by 1 type and may use 2 or more types together.
  • the thickness of the support is not particularly limited and may be appropriately selected depending on the intended purpose, but is preferably 30 ⁇ m to 400 ⁇ m, and more preferably 60 ⁇ m to 300 ⁇ m. If the thickness of the support is 30 ⁇ m or more, it is advantageous in terms of ease of handling, and if it is 400 ⁇ m or less, it is advantageous in that the cost and the solar cell module can be reduced.
  • the support may be subjected to a surface treatment as necessary.
  • the surface treatment method is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include corona treatment, flame treatment, and glow discharge treatment.
  • an ultraviolet absorber is not particularly limited and may be appropriately selected depending on the intended purpose.
  • all the technical matters described in Japanese Patent Application Laid-Open No. 2002-244247 can be applied as known techniques relating to the ultraviolet absorber.
  • X 1, Y 1 and Z 1 are each independently a substituted or unsubstituted alkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group or a hetero Represents a cyclic group, and at least one of X 1 , Y 1 and Z 1 represents a substituent represented by the following structural formula (A).
  • R 1 and R 2 are each independently a hydrogen atom, halogen atom, substituted or unsubstituted alkyl group, alkenyl group, aryl group, alkoxy group, aryloxy group, acyloxy group Represents a group, an alkylthio group, an arylthio group, an amino group, an acyl group, an oxycarbonyl group, a carbamoyl group, a sulfamoyl group, a carboxyl group or a salt thereof, or a sulfo group or a salt thereof.
  • Adjacent R 1 and R 2 may be linked to form a ring.
  • the addition amount of the ultraviolet absorber is preferably such that the light transmittance of light having a wavelength of 380 nm in the support containing the ultraviolet absorber is 3.00% or less.
  • the content of the ultraviolet absorber in the support is preferably 0.1% by mass to 5.0% by mass, more preferably 0.2% by mass to 3%. It is more preferably 0.0% by mass, and particularly preferably 0.3% by mass to 2.0% by mass.
  • the polymer layer contains the following polymers.
  • the polymer is a polymer including a repeating unit represented by the following general formula (1).
  • X 1, X 2 or X 3 represents a hydrogen atom, a fluorine atom, a chlorine atom or a perfluoroalkyl group having 1 to 3 carbon atoms.
  • a polymer layer formed using a coating solution containing an aqueous dispersion of the polymer is formed without peeling from the support.
  • These polymers may be a homopolymer obtained by polymerizing a single monomer, or may be a copolymer obtained by copolymerizing two or more kinds.
  • a copolymer obtained by copolymerization of tetrafluoroethylene (TFE) and hexafluoropropylene (HFP) (hereinafter sometimes simply referred to as “P (TFE / HFP)”)
  • P (TFE / HFP) a copolymer obtained by copolymerization of tetrafluoroethylene and vinylidene fluoride
  • P (TFE / VDF) a copolymer obtained by copolymerization of tetrafluoroethylene and vinylidene fluoride
  • the polymer which copolymerized the monomer shown by the said General formula (1), and another monomer may be sufficient.
  • a copolymer of tetrafluoroethylene and ethylene hereinafter sometimes simply referred to as P (TFE / E)
  • a copolymer of tetrafluoroethylene and propylene hereinafter simply referred to as P (TFE / P)).
  • the coating solution is composed of an aqueous medium containing an aqueous dispersion of the polymer, and contains other additives as necessary.
  • Aqueous medium-- The polymer layer is formed by applying an aqueous coating solution onto the support.
  • the aqueous system refers to a liquid (water-based medium) containing 50% by mass or more of water among media (herein referred to as “medium” including a dispersion medium) that forms a coating liquid.
  • aqueous medium there is no restriction
  • the organic solvent is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include methanol, ethanol, isopropanol, acetone and N-methylpyrrolidone.
  • additives can be added to the coating solution as long as the effects of the present invention are not impaired.
  • a surfactant e.g., a matting agent, a slipping agent, and the like may be added.
  • the polymer is generally insoluble in water, and a surfactant can be added to facilitate dispersion in an aqueous medium.
  • a surfactant is not particularly limited, and a surfactant can be used according to the purpose, and a known anionic, nonionic, or cationic surfactant can be used. Those described in the Handbook of Activating Agents (Ichiro Nishi, Ichiro Imai, Shozo Kasai Sangyo Tosho Co., Ltd., 1960) can be used.
  • CF 3 OCF 2 CF 2 OCF 2 COONH 4 CF 3 OCF (CF 3 ) CF 2 OCF (CF 3 ) COONH 4
  • HCF 2 CF 2 are used as long as they are anionic.
  • CH 2 OCOCH (SO 3 NH 4 ) CH 2 COOCH 2 CF 2 CF 2 H, C 7 F 15 COONH 4 and the like are preferable, and in the case of a cationic system, C 7 F 15 COOCH 2 N + (CH 3 ) 3 Cl ⁇
  • those containing fluorine such as CF 3 OCF 2 CF 2 OCH 2 N + (CH 3 ) 3 Cl — are preferred.
  • the matting agent is not particularly limited and may be appropriately selected depending on the intended purpose.
  • fine particles such as silica, titanium oxide, polystyrene and polymethyl methacrylate having an average particle size of 0.2 ⁇ m to 10 ⁇ m are used. Can do.
  • the slipping agent is not particularly limited and may be appropriately selected depending on the intended purpose.
  • the film thickness of the polymer layer provided on the support is not particularly limited and may be appropriately selected depending on the intended purpose, but is preferably 0.2 ⁇ m to 20 ⁇ m, more preferably 1.0 ⁇ m to 10 ⁇ m. . When the film thickness is in the range of 0.2 ⁇ m to 20 ⁇ m, necessary water vapor barrier properties can be obtained.
  • -Other layers Other layers can be added to the polymer sheet as long as the effects of the present invention are not impaired. Examples thereof include a back layer, an undercoat layer, and a surface protective layer.
  • a back layer for improving scratch resistance, slipperiness and the like may be provided on the back side of the support on which the polymer layer is not formed, if necessary.
  • Undercoat layer-- On the back surface side of the support, an undercoat layer having a function of imparting scratch resistance, slipperiness and the like can be applied and formed as necessary.
  • the binder, additives, film thickness, formation method, and the like of the undercoat layer which can be appropriately selected according to the purpose.
  • the surface protective layer is formed by being applied to the surface side of the polymer layer, and has a function of preventing scratches on the polymer layer.
  • the binder, additive, film thickness, formation method, and the like of the surface protective layer can be appropriately selected according to the purpose.
  • the polymer sheet is manufactured by a manufacturing method including a support forming process, a coating liquid adjusting process, a coating process, and a drying process. Further, it includes other steps as necessary.
  • the support body forming step includes a resin pet manufacturing step, a melt extrusion step, a stretching step, and a surface treatment step.
  • a resin pellet containing a material for forming the support is manufactured.
  • a preparation method of the said resin pellet According to the objective, it can select suitably, For example, producing and drying resin which is a material which forms the said support body is mentioned.
  • the resin pellet may contain the ultraviolet absorber, and in this case, it can be used as a master batch pellet in subsequent steps.
  • the melted resin pellets are extruded to form an extrusion molded body.
  • the melt extrusion method is not particularly limited and may be appropriately selected depending on the intended purpose.
  • the melted resin pellet is extruded from a die portion onto a chill roll electrostatically applied by a T-die method, and extruded. Examples include molding a molded body.
  • the resin pallet may be melt-extruded by one kind alone, or two or more kinds may be melt-kneaded and extruded.
  • the extruded body is stretched at least uniaxially to stretch the extruded body.
  • the stretching method is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include uniaxial stretching, sequential biaxial stretching, and simultaneous biaxial stretching.
  • a surface treatment of the stretched extruded product is performed.
  • the surface treatment method is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include corona discharge treatment, flame treatment, and glow discharge treatment. When these surface treatments are performed, the adhesion between the support and the polymer layer is improved.
  • the coating solution preparation step is a step of preparing a coating solution containing an aqueous dispersion of the polymer, and includes a latex synthesis step and a dispersion step.
  • Latex synthesis process-- a latex containing the polymer is synthesized.
  • the method for synthesizing the latex is not particularly limited and can be appropriately selected depending on the purpose.For example, after using an autoclave and injecting the monomer constituting the polymer into a solution obtained by adding an emulsifier and an initiator to water, A method of emulsifying, polymerizing and synthesizing by heating and stirring can be mentioned.
  • emulsifier for example, CF 3 CF 2 CF 2 C ( CF 3) 2 CH 2 CH 2 COONH 4 , and the like.
  • initiator include ammonium persulfate (APS).
  • stirring conditions in the autoclave, pressure conditions, temperature conditions, etc. all the techniques disclosed in JP-A-2002-308914 can be used.
  • the solid content of the latex (the polymer) is dispersed in the aqueous medium.
  • the content of the polymer in the aqueous medium is preferably 5% by mass to 55% by mass, and more preferably 15% by mass to 40% by mass.
  • the content is 5% by mass or more, it is advantageous in that the thickness of the polymer layer can be increased by one application, and when it is 55% by mass or less, the surface property of the obtained polymer layer is good. This is advantageous.
  • the content of the surfactant in the aqueous medium is not particularly limited and may be appropriately selected depending on the intended purpose, but is preferably 0.001% by mass to 2% by mass, and preferably 0.01% by mass to 1%.
  • the mass% is more preferable.
  • the content is 0.001% by mass or more, it is advantageous in terms of repelling the polymer layer coating solution at the time of coating, and when it is 2% by mass or less, the adhesiveness between the polymer layer and the support is high. Is advantageous.
  • the method for dispersing the polymer in the aqueous medium is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include a method of synthesizing the polymer in an aqueous medium by an emulsion polymerization method. .
  • the coating step is a step of coating the coating liquid on the support.
  • coating method There is no restriction
  • the said drying process is a process of drying the surface apply
  • the heating temperature is not particularly limited and may be appropriately selected depending on the intended purpose, but is preferably 200 ° C to 400 ° C, more preferably 250 ° C to 350 ° C. When the temperature is 200 ° C. or higher, a sufficient water vapor barrier property is obtained, and when the temperature is 400 ° C. or lower, it is preferable that the polymer layer is not thermally deteriorated.
  • the heating time is not particularly limited and may be appropriately selected depending on the intended purpose, but is preferably 5 seconds to 15 minutes, and more preferably 10 seconds to 3 minutes.
  • the heating time is 5 seconds or longer, a sufficient water vapor barrier property is obtained, and when it is 15 minutes or shorter, it is preferable in that the polymer layer is not thermally deteriorated.
  • the method of the said heating Although it can select suitably according to the objective, For example, well-known methods, such as the method of spraying warm air and the method of heating with infrared rays, can be used.
  • a method of cooling the support from the back side opposite to the surface on which the polymer layer is formed is also preferable. By including such a heating step, the water vapor barrier property of the polymer layer can be further improved.
  • FIG. 1 shows the structure of a polymer sheet 1 of the present invention.
  • a polymer layer 3 is provided on a support 2 in a two-layer structure without a layer such as an adhesive layer.
  • the polymer sheet can be used for a film or sheet for packaging, and can be suitably used particularly as a solar cell encapsulating sheet and a solar cell module including the solar cell encapsulating sheet.
  • the solar cell sealing sheet is made of the polymer sheet of the present invention.
  • the solar cell module includes the solar cell sealing sheet.
  • Other configurations of the solar cell module are not particularly limited as long as the effects of the present invention are not impaired, and can be appropriately selected according to the purpose.
  • FIG. 2 is a schematic view showing an example of the solar cell module 10 of the present invention.
  • 11 is glass
  • 12 is a filler
  • 13 is a solar cell sealing sheet of the present invention
  • 14 is a solar cell (cell)
  • 15 is a frame
  • 16 is a sealing agent
  • 17 is a wiring.
  • light enters from the glass 11 side.
  • the filler 12 is laminated on the clean glass 11, and the solar battery cell 14 is disposed thereon.
  • the solar cell sealing sheet 13 of the present invention is placed on top of it and heated in this state for about 1 hour to crosslink the filler 12 layer.
  • the excess filler 12 and the solar cell sealing sheet 13 are cut along the glass 11.
  • the produced member is pushed into the frame 15 from the glass 11 side (becomes a front surface on which sunlight is incident).
  • a part of the filler 12 and the solar cell sealing sheet 13 of the present invention is cut, and the wiring 17 is soldered to the terminal portion of the solar cell (module).
  • a silicone resin or silicone rubber is applied to the cut portion to seal the terminal portion.
  • the solar cell module of the present invention uses the solar cell module of the present invention, the solar cell module of the present invention has excellent water vapor barrier properties and durability, and is easy to manufacture.
  • PTFE latex L-1
  • the latex had a solid content (PTFE) concentration of 19.6% by weight and an average particle size of 240 nm.
  • the resulting latex had a solid content (TFE / HFP) concentration and an average particle size of 20.8% by weight and 260 nm, respectively.
  • PET polyethylene terephthalate
  • UV absorbent A Cytec Industries Inc., CYASORB UV-3638
  • the content of the ultraviolet absorber A was 0.7% by mass with respect to the total mass of the support completed by adjusting the blend ratio.
  • the melted PET resin was discharged from a die part onto a chill roll electrostatically applied to obtain an amorphous film.
  • the amorphous film was stretched 3.3 times with respect to the longitudinal direction of the film and then stretched 3.8 times with respect to the width direction of the film to give a biaxially stretched thickness of 100 ⁇ m.
  • a support was prepared.
  • One surface of the polyethylene terephthalate support was subjected to corona treatment under the following conditions, and a polymer layer coating solution having the following composition was applied so that the wet coating amount was 34.5 cc / m 2 .
  • the coating solution was applied onto the support by a bar coating method.
  • an infrared heater (IDK radiant heater RAK type) is placed in close contact with the cooling roll whose surface temperature is set to 70 ° C. so that the back surface of the sample (the surface opposite to the surface on which the polymer layer is formed) is in contact. And manufactured by Ishihara Heater Manufacturing Co., Ltd.) so that the surface temperature was 330 ° C. In this state, heat treatment was performed for 3 minutes to obtain a polymer sheet according to Example 1.
  • Example 2 The polymer sheet of Example 2 was obtained in the same manner as in Example 1 except that PCTFE synthesized in Synthesis Example 2 was used as the binder for the polymer layer, and the heating temperature was 230 ° C. The thickness of the polymer layer was 5.0 ⁇ m, which was substantially the same as in Example 1.
  • Example 3 A polymer sheet of Example 3 was obtained in the same manner as in Example 1 except that P (TFE / HFP) synthesized in Synthesis Example 3 was used as the binder for the polymer layer, and the heating temperature was 270 ° C.
  • Example 4 A polymer sheet of Example 4 was obtained in the same manner as in Example 1 except that P (TFE / E) synthesized in Synthesis Example 4 was used as the binder for the polymer layer.
  • the thickness of the polymer layer was 4.8 ⁇ m, which was substantially the same as in Example 1.
  • Example 5 A polymer sheet of Example 5 was obtained in the same manner as Example 1 except that polyethylene naphthalate (hereinafter referred to as PEN) was used as the support.
  • PEN polyethylene naphthalate
  • Example 6 A polymer sheet of Example 6 was obtained in the same manner as in Example 2 except that polycarbonate (hereinafter referred to as PC) was used as the support and the thickness of the support was changed to 125 ⁇ m.
  • PC polycarbonate
  • Example 7 A polymer sheet of Example 7 was obtained in the same manner as in Example 2 except that polystyrene (hereinafter referred to as PS) was used as the support and the thickness of the support was changed to 125 ⁇ m.
  • PS polystyrene
  • Example 8 A polymer sheet of Example 8 was obtained in the same manner as in Example 2 except that polymethyl methacrylate (hereinafter referred to as PMMA) was used as the support and the thickness of the support was changed to 65 ⁇ m.
  • PMMA polymethyl methacrylate
  • Example 9 A polymer sheet of Example 9 was obtained in the same manner as in Example 2 except that polyimide (hereinafter referred to as PI) was used as the support and the thickness of the support was changed to 65 ⁇ m.
  • PI polyimide
  • Example 10 A polymer sheet of Example 10 was obtained in the same manner as Example 2 except that the coating amount was adjusted and the thickness of the polymer layer was changed to 10.1 ⁇ m.
  • Example 11 A polymer sheet of Example 11 was obtained in the same manner as Example 2 except that the coating amount was adjusted and the thickness of the polymer layer was changed to 7.7 ⁇ m.
  • Example 12 A polymer sheet of Example 12 was obtained in the same manner as Example 2 except that the coating amount was adjusted and the thickness of the polymer layer was changed to 3.2 ⁇ m.
  • Example 13 A polymer sheet of Example 13 was obtained in the same manner as Example 2 except that the coating amount was adjusted and the thickness of the polymer layer was changed to 2.4 ⁇ m.
  • Example 14 A polymer sheet of Example 14 was obtained in the same manner as Example 2 except that the coating amount was adjusted and the thickness of the polymer layer was changed to 1.3 ⁇ m.
  • Example 15 A polymer sheet of Example 15 was obtained in the same manner as Example 2 except that the coating amount was adjusted and the thickness of the polymer layer was changed to 0.6 ⁇ m.
  • Example 16 A polymer sheet of Example 16 was obtained in the same manner as in Example 2 except that the heat treatment was replaced with natural drying.
  • Example 17 A polymer sheet of Example 17 was obtained in the same manner as Example 2 except that the heating temperature was changed to 120 ° C.
  • Example 18 A polymer sheet of Example 18 was obtained in the same manner as in Example 2 except that the heating temperature was changed to 180 ° C.
  • Example 19 A polymer sheet of Example 19 was obtained in the same manner as in Example 2 except that the heating time was changed to 10 seconds.
  • Example 20 A polymer sheet of Example 20 was obtained in the same manner as in Example 2 except that the heating time was changed to 1 minute.
  • Example 21 A polymer sheet of Example 21 was obtained in the same manner as in Example 2 except that the heating time was changed to 10 minutes.
  • Example 22 As a coating liquid formulation, instead of filtration using a 400 mesh filter cloth, the latex was ultrafiltered (manufactured by Nihon Millipore Corporation, using an ultrafiltration membrane PXC005C50), and the latex concentration (solid content) was 15% by mass.
  • the polymer sheet of Example 22 was obtained in the same manner as in Example 2 except that the amount was changed to 38.6% by mass, the coating amount was adjusted, and the thickness of the polymer layer was changed to 20 ⁇ m.
  • Example 23 As a coating liquid formulation, instead of filtration using a 400 mesh filter cloth, the latex was ultrafiltered (manufactured by Nihon Millipore Corporation, using an ultrafiltration membrane PXC005C50), and the latex concentration (solid content) was 15% by mass.
  • the polymer sheet of Example 23 was obtained in the same manner as in Example 2 except that the amount was changed to 48.3% by mass, the coating amount was adjusted, and the thickness of the polymer layer was changed to 25 ⁇ m.
  • Example 1 The support of Example 1 and a PCTFE sheet having a thickness of 400 ⁇ m were laminated with a polyurethane-based adhesive. The adhesive was applied so that the thickness after drying was 150 ⁇ m, and after bonding, it was heated at 120 ° C. for 30 minutes.
  • the said polyurethane-type adhesive agent used what added the hardening
  • the support and the PCTFE sheet were previously subjected to corona discharge treatment under a treatment condition of 730 J / m 2 .
  • the adhesive layer in Comparative Example 1 needs to have a thickness of 10 ⁇ m to 1,000 ⁇ m (the thickness of a normal adhesive layer is several tens to several hundreds ⁇ m). ). Accordingly, the presence or absence of the adhesive layer can be facilitated by observing the cross section of the polymer sheet at a magnification of 100 to 1,000 times using a scanning electron microscope (SEM). On the other hand, in the polymer sheets of Examples 1 to 23 having no adhesive layer, when observed by the same method, the above 10 ⁇ m to 1,000 ⁇ m adhesive layer was not confirmed and the adhesive layer had an adhesive layer. Polymer sheets that do not can be identified.
  • Comparative Example 2 A polymer sheet of Comparative Example 2 was obtained in the same manner as in Example 1 except that an acrylic resin (NIPOL Lx811, manufactured by Nippon Zeon Co., Ltd.) was used as the binder of the polymer layer and the heating temperature was changed to 230 ° C. The thickness of the polymer layer was 5.1 ⁇ m, which was substantially the same as in Example 1.
  • an acrylic resin NIPOL Lx811, manufactured by Nippon Zeon Co., Ltd.
  • Comparative Example 3 A polymer sheet of Comparative Example 2 was obtained in the same manner as in Example 1 except that a styrene resin (NIPOL Lx303, manufactured by Nippon Zeon Co., Ltd.) was used as the binder of the polymer layer and the heating temperature was changed to 230 ° C. The thickness of the polymer layer was 5.0 ⁇ m, which was substantially the same as in Example 1.
  • a styrene resin NIPOL Lx303, manufactured by Nippon Zeon Co., Ltd.
  • the water vapor transmission rate (g / m 2 ⁇ day) was calculated from w 1 and w 2 by the following formula 1.
  • the value of moisture permeability at this time is preferably 2.30 or less.
  • peeling means a state in which the polymer layer is peeled from the support.
  • the peelability can be easily confirmed because once the Mylar tape is applied to the surface of the polymer layer and then peeled off, the peelable polymer layer is peeled off.
  • SEM scanning electron microscope
  • Examples 1 to 23 have good weather resistance.
  • Example 2 and Comparative Example 1 are compared, peeling occurs in Comparative Example 1, whereas in Example 2, no change in peeling is observed, and it can be confirmed that the weather resistance is good.
  • the water vapor permeability is small as compared with Comparative Examples 2 and 3, and it is an excellent barrier sheet.
  • Example 2 is compared with Comparative Examples 2 and 3, it can be confirmed that the film of Example 2 has a low water vapor permeability and is excellent as a barrier sheet.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Computer Hardware Design (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Laminated Bodies (AREA)
  • Photovoltaic Devices (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Hybrid Cells (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

L’invention concerne une feuille polymère qui possède une couche polymère, qui contient un polymère renfermant des unités répétitives représentées par la formule générale (1), sur un support. La couche polymère est procurée par application d’une solution de revêtement renfermant une dispersion aqueuse dudit polymère, puis séchage.
PCT/JP2009/064993 2008-08-29 2009-08-27 Feuille polymère et procédé de fabrication à cet effet, et feuille de scellement de cellule de batterie solaire et module de batterie solaire utilisant ladite feuille polymère WO2010024349A1 (fr)

Applications Claiming Priority (2)

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JP2008222563A JP2010053317A (ja) 2008-08-29 2008-08-29 ポリマーシート及びその製造方法、並びに、該ポリマーシートを用いた太陽電池セル封止シート及び太陽電池モジュール
JP2008-222563 2008-08-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011129412A1 (fr) * 2010-04-16 2011-10-20 旭硝子株式会社 Feuille de support pour module de cellule solaire, et module de cellule solaire
CN103703571A (zh) * 2011-03-17 2014-04-02 Lg化学株式会社 用于太阳能电池的环保型背板及其制备方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012118195A1 (fr) * 2011-03-03 2012-09-07 富士フイルム株式会社 Feuille de protection pour cellule solaire, son procédé de fabrication, feuille de support pour cellule solaire et module de cellule solaire
JP2014130857A (ja) * 2012-12-28 2014-07-10 Toyo Ink Sc Holdings Co Ltd 太陽電池裏面保護シート用樹脂組成物

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JPS5959441A (ja) * 1982-09-30 1984-04-05 旭硝子株式会社 複合バリヤ−膜
JPH02280748A (ja) * 1989-03-22 1990-11-16 E R Squibb & Sons Inc 生物分解性複合フィルムおよび接着ラベル付人工肛門袋
JP2000138388A (ja) * 1998-10-29 2000-05-16 Dainippon Printing Co Ltd 太陽電池モジュ−ル用表面保護シ−トおよびそれを使用した太陽電池モジュ−ル
JP2000138391A (ja) * 1998-10-29 2000-05-16 Dainippon Printing Co Ltd 太陽電池モジュ−ル用表面保護シ−トおよびそれを使用した太陽電池モジュ−ル
JP2003062921A (ja) * 2001-06-11 2003-03-05 Bridgestone Corp 透明複合フィルム
JP2007035694A (ja) * 2005-07-22 2007-02-08 Daikin Ind Ltd 太陽電池のバックシート
JP2009010269A (ja) * 2007-06-29 2009-01-15 Toppan Printing Co Ltd 太陽電池モジュール用裏面保護シートおよびそれを用いた太陽電池モジュール

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Publication number Priority date Publication date Assignee Title
JPS5959441A (ja) * 1982-09-30 1984-04-05 旭硝子株式会社 複合バリヤ−膜
JPH02280748A (ja) * 1989-03-22 1990-11-16 E R Squibb & Sons Inc 生物分解性複合フィルムおよび接着ラベル付人工肛門袋
JP2000138388A (ja) * 1998-10-29 2000-05-16 Dainippon Printing Co Ltd 太陽電池モジュ−ル用表面保護シ−トおよびそれを使用した太陽電池モジュ−ル
JP2000138391A (ja) * 1998-10-29 2000-05-16 Dainippon Printing Co Ltd 太陽電池モジュ−ル用表面保護シ−トおよびそれを使用した太陽電池モジュ−ル
JP2003062921A (ja) * 2001-06-11 2003-03-05 Bridgestone Corp 透明複合フィルム
JP2007035694A (ja) * 2005-07-22 2007-02-08 Daikin Ind Ltd 太陽電池のバックシート
JP2009010269A (ja) * 2007-06-29 2009-01-15 Toppan Printing Co Ltd 太陽電池モジュール用裏面保護シートおよびそれを用いた太陽電池モジュール

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011129412A1 (fr) * 2010-04-16 2011-10-20 旭硝子株式会社 Feuille de support pour module de cellule solaire, et module de cellule solaire
CN102844884A (zh) * 2010-04-16 2012-12-26 旭硝子株式会社 太阳能电池模块用背板及太阳能电池模块
CN103703571A (zh) * 2011-03-17 2014-04-02 Lg化学株式会社 用于太阳能电池的环保型背板及其制备方法
EP2688111A4 (fr) * 2011-03-17 2015-03-11 Lg Chemical Ltd Feuille de support écologique pour cellule solaire et son procédé de fabrication

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