WO2010116627A1 - 太陽電池モジュール用裏面保護シートおよびそれを備える太陽電池モジュール - Google Patents
太陽電池モジュール用裏面保護シートおよびそれを備える太陽電池モジュール Download PDFInfo
- Publication number
- WO2010116627A1 WO2010116627A1 PCT/JP2010/001975 JP2010001975W WO2010116627A1 WO 2010116627 A1 WO2010116627 A1 WO 2010116627A1 JP 2010001975 W JP2010001975 W JP 2010001975W WO 2010116627 A1 WO2010116627 A1 WO 2010116627A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sheet
- solar cell
- cell module
- back surface
- urethane
- Prior art date
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- B32B5/145—Variation across the thickness of the layer
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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
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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
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2852—Adhesive compositions
- Y10T428/2896—Adhesive compositions including nitrogen containing condensation polymer [e.g., polyurethane, polyisocyanate, etc.]
Definitions
- the present invention relates to a back surface protection sheet for a solar cell module and a solar cell module including the back surface protection sheet for the solar cell module.
- FIG. 2 is a schematic cross-sectional view showing an example of a general solar cell module.
- the solar battery module 100 includes a solar battery cell 104 made of crystalline silicon, amorphous silicon, etc., a sealing material (filling layer) 103 made of an electrical insulator that seals the solar battery cell 104, and the surface of the sealing material 103.
- stacked on the back surface of the sealing material 103 are roughly comprised.
- the base material of the front sheet 101 may be a glass plate.
- the solar cell module In order to give the solar cell module the weather resistance and durability that can withstand long-term use outdoors and indoors, the solar cell 104 and the sealing material 103 are protected from wind, rain, moisture, dust, mechanical impact, etc. It is necessary to keep the inside of the solar cell module sealed from the outside air. For this reason, it is calculated
- a back surface protection sheet for a solar cell module As a back surface protection sheet for a solar cell module, a back surface protection sheet for a solar cell module using a polyester film such as polyethylene terephthalate having excellent electrical insulation has been developed, and the weather resistance mentioned as a disadvantage of using a polyester film has been developed.
- a film containing a UV absorber see Patent Document 1
- a film that defines the amount of cyclic oligomer in polyester see Patent Documents 2 and 3
- a film that defines the molecular weight of polyester see Patent Document 4
- a thermal adhesive sheet mainly composed of EVA is used on the film.
- a back surface protection sheet bonded with an adhesive is also disclosed, and a urethane-based adhesive is used as the adhesive (see Patent Documents 5 to 7).
- a base film such as polyethylene terephthalate is bonded to the sealing material 103 via a urethane adhesive and a thermal adhesive sheet.
- the base film peels off in the solar cell module. There was a risk of electrical leakage and corrosion of the electrical circuit.
- the present invention has been made in view of the above circumstances, and has high weather resistance, durability, and heat-and-moisture resistance, particularly excellent adhesion to a sealing material, and enables stable long-term use of solar cells. It aims at providing a solar cell module provided with the back surface protection sheet for solar cell modules, and this back surface protection sheet for solar cell modules.
- the present invention relates to a back protective sheet for a solar cell module in which a thermal adhesive sheet is laminated on at least one surface of a base sheet via a urethane adhesive layer, and the thermal adhesive sheet contains a pigment.
- the urethane-based adhesive layer relates to a back surface protection sheet for a solar cell module containing a silane coupling agent.
- the present invention also relates to the back protective sheet for a solar cell module, wherein the pigment contained in the thermal adhesive sheet is an inorganic pigment or carbon black. Furthermore, this invention relates to a solar cell module provided with the said back surface protection sheet for solar cell modules.
- the base sheet and the heat-adhesive sheet are adhered with good adhesion by laminating the heat-adhesive sheet containing the pigment on the base sheet via the urethane-based adhesive layer containing the silane coupling agent.
- the back surface protection sheet for solar cell modules which can be match
- Embodiment of the back surface protection sheet for solar cell modules of this invention is described. This embodiment is specifically described for better understanding of the gist of the invention and does not limit the present invention unless otherwise specified.
- FIG. 1 is a schematic cross-sectional view showing an example of an embodiment of a back surface protective sheet for a solar cell module of the present invention.
- the back surface protection sheet 20 for a solar cell module of this embodiment has a laminated structure in which a heat-adhesive sheet 26 is laminated on a base material sheet 24 via a urethane-based adhesive layer 28.
- the urethane adhesive layer 28 can be formed of a urethane adhesive containing a polyol compound, an isocyanate compound, and a silane coupling agent.
- the polyol compound contained in the urethane-based adhesive is not particularly limited in its molecular weight and skeleton as long as it is a compound having two or more hydroxyl groups. Specific examples thereof include a low-molecular polyhydric alcohol. , Polyether polyols, polyester polyols, other polyols, and mixed polyols thereof.
- low molecular weight polyhydric alcohol examples include ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, 1,3-butanediol, 1,4-butanediol, pentanediol, and 3-methyl-1 , 5-pentanediol, neopentyl glycol, hexanediol, cyclohexanedimethanol, glycerin, 1,1,1-trimethylolpropane, 1,2,5-hexanetriol, low molecular polyols such as pentaerythritol, and saccharides such as sorbitol Is mentioned.
- polyether polyol examples include polyethylene glycol, polypropylene glycol, polypropylene triol, ethylene oxide / propylene oxide copolymer, polytetramethylene ether glycol, and sorbitol-based polyol.
- polyester polyol examples include condensates (condensed polyester polyols) of the above low-molecular polyhydric alcohols and / or aromatic diols with polybasic carboxylic acids, lactone-based polyols, and polyester polyols having a bisphenol skeleton. Etc.
- Specific examples of the polybasic carboxylic acid that forms the condensed polyester polyol include glutaric acid, adipic acid, azelaic acid, pimelic acid, peric acid, sebacic acid, terephthalic acid, isophthalic acid, dimer acid, and the like.
- Examples thereof include low-molecular carboxylic acids, oligomeric acids, castor oil, hydroxycarboxylic acids such as a reaction product of castor oil and ethylene glycol, and the like.
- Specific examples of the lactone-based polyol include ring-opening polymers such as propionlactone and valerolactone.
- Examples of the polyester polyol having a bisphenol skeleton include condensed polyester polyols obtained by using a diol having a bisphenol skeleton in place of the low molecular polyhydric alcohols or together with the low molecular polyhydric alcohols.
- polyester polyols obtained from bisphenol A and castor oil polyester polyols obtained from bisphenol A castor oil, polyester polyols obtained from bisphenol A castor oil, ethylene glycol, and propylene glycol.
- other polyols include polycarbonate diol, acrylic polyol; polybutadiene polyol; polymer polyol having a carbon-carbon bond in the main chain skeleton such as hydrogenated polybutadiene polyol; and the like.
- polyester polyols polyester polyols, polyester polyols, polyether polyols, polycarbonate diols, acrylic polyols, or polyester urethane polyols, polyether urethane polyols, polycarbonate urethane diols, acrylics that have undergone chain extension with a bifunctional or higher isocyanate.
- Urethane polyol is preferred for reasons of heat resistance and stability.
- the isocyanate compound contained in the urethane-based adhesive is not particularly limited as long as it is a compound having one or more isocyanate groups in the molecule, but is a polyisocyanate compound containing two or more isocyanate groups in the molecule. Are preferably used.
- the isocyanate compound contained in the urethane-based adhesive forming the urethane-based adhesive layer 28 in the present invention may be used alone or in combination of two or more, and the total amount used is included in the urethane-based adhesive.
- the amount is preferably 5 to 40 parts by weight, more preferably 10 to 30 parts by weight, and still more preferably 10 to 20 parts by weight with respect to 100 parts by weight of the polyol.
- the silane coupling agent contained in the urethane-based adhesive is not particularly limited as long as it is a conventionally known silane coupling agent, such as aminosilane, mercaptosilane, vinyl silane, epoxy silane, methacryl silane, isocyanate silane, Examples include ketimine silane and alkoxysilane.
- the silane coupling agent contained in the urethane-based adhesive forming the urethane-based adhesive layer in the present invention may be used alone or in combination of two or more, and the total amount used is included in the urethane-based adhesive.
- the amount is preferably 0.01 to 30 parts by weight, more preferably 0.05 to 10 parts by weight, and still more preferably 0.1 to 3 parts by weight with respect to 100 parts by weight of the polyol.
- the urethane-based adhesive includes, in addition to the above-described polyol compound, isocyanate compound, and silane coupling agent, for example, an antioxidant, an ultraviolet absorber, a hydrolysis inhibitor, a thickener, and a plasticizer.
- Additives such as fillers can be blended as necessary. Among these, it is preferable to add a carbodiimide compound or an oxazoline compound for the purpose of suppressing hydrolysis of an ester bond.
- the urethane-based adhesive can be adjusted by adding a solvent in order to improve work efficiency during coating or layer formation, for example, an ester solvent such as ethyl acetate, methyl ethyl ketone, etc. Any solvent may be used as necessary as long as it is inert to isocyanates such as ketone solvents such as aromatic hydrocarbon solvents such as toluene and xylene.
- the urethane type adhesive bond layer 28 can be formed by apply
- the method for applying the urethane adhesive on the base sheet 24 is not particularly limited. Conventionally known methods include, for example, knife coating method, roll coating method, bar coating method, blade coating method, die coating method, gravure coating method, etc. Any of which may be used.
- the thickness of the urethane adhesive layer 28 is preferably 1 ⁇ m to 50 ⁇ m, and more preferably 3 ⁇ m to 30 ⁇ m.
- the thermal adhesive sheet 26 is not particularly limited as long as it is a resin sheet having thermal adhesiveness and contains a pigment.
- thermal adhesiveness is a property that develops adhesiveness by heat treatment.
- the temperature in the heat treatment is usually in the range of 50 to 200 ° C., preferably in the range of 85 to 180 ° C.
- the pigment contained in the heat-adhesive sheet 26 is not particularly limited as long as it is a conventionally known pigment, but the adhesion is improved by increasing the affinity with the silane coupling agent contained in the urethane-based adhesive layer 28.
- inorganic pigments and carbon black are preferable.
- white pigments such as calcium carbonate, titanium oxide, silica, zinc oxide, lead carbonate and barium sulfate, black pigments such as carbon black (channel or harness), black iron oxide and the like.
- blue pigments such as ultramarine and bitumen, red pigments such as iron oxide red, cadmium red, and molybdenum orange, and metal powder pigments that give metallic gloss.
- titanium oxide and carbon black are preferable.
- these pigments are preferably coated and surface-treated with an organosilicon compound or the like, and those to which a polar group such as a hydroxyl group or an alkoxyl group is imparted by the surface treatment are more preferably used.
- the resin constituting the thermal adhesive sheet 26 is not particularly limited as long as the resin can be contained in a dispersed state, and is an acrylic urethane resin, ethylene vinyl acetate copolymer (EVA), polyvinyl butyral. (PVB), an ethylene methacrylic acid copolymer, an ionomer resin in which the molecules of the ethylene methacrylic acid copolymer are cross-linked with metal ions, and a resin composed of a polymer containing polyolefin as a main component.
- EVA and PVB are more preferable, and a resin mainly composed of EVA is more preferable.
- the sealing material 103 is often a resin made of EVA, and in that case, the thermal adhesive sheet 26 is a resin sheet made of a polymer mainly composed of EVA, so that the sealing material 103 is thermally bonded.
- the compatibility with the adhesive sheet 26 and the adhesion can be improved.
- the method of forming the heat-adhesive sheet 26 is such that the pigment contained in the heat-adhesive sheet 26 is 0.5 to 30 parts by weight, preferably 1 to 100 parts by weight of the resin constituting the heat-adhesive sheet 26. It is formed by kneading at a ratio of 10 parts by weight, and melt extrusion by a T-die method or an inflation method.
- the thickness of the heat-adhesive sheet 26 may be appropriately adjusted depending on the type of the heat-adhesive sheet 26, and it is usually preferable that the thickness of the sheet is in the range of 5 to 200 ⁇ m.
- the thickness of the EVA sheet is in the range of 10 to 200 ⁇ m from the viewpoints of light weight and electrical insulation. It is preferably in the range of 50 to 150 ⁇ m, more preferably in the range of 80 to 120 ⁇ m.
- a resin sheet, an aluminum sheet, or the like is used as the base material sheet 24 in the back surface protection sheet 20 for the solar cell module of the present invention.
- resin sheet used for the base material sheet 24 those generally used as the resin sheet in the back surface protective sheet for solar cell module can be used.
- resin sheets include polyethylene, polypropylene, polystyrene, polymethyl methacrylate, polytetrafluoroethylene, polyamide (nylon 6, nylon 66), polyacrylonitrile, polyvinyl chloride, polyethylene terephthalate (PET), and polybutylene.
- examples thereof include a sheet made of a polymer such as terephthalate (PBT), polyethylene naphthalate (PEN), polyoxymethylene, polycarbonate, polyphenylene oxide, polyester urethane, poly m-phenylene isophthalamide, poly p-phenylene terephthalamide.
- PET polyethylene terephthalate
- PBT polybutylene terephthalate
- PEN polyethylene naphthalate
- a PET sheet is preferred.
- the PET sheet preferably has hydrolysis resistance, and it is known that those having a low oligomer content have hydrolysis resistance. Examples of the PET sheet having hydrolysis resistance include Melinex 238 (trade name; manufactured by Teijin DuPont Films).
- the thickness of the resin sheet may be adjusted based on the electrical insulation required by the solar cell system, and the thickness of the sheet is usually preferably in the range of 10 to 300 ⁇ m. More specifically, when the resin sheet is a PET sheet, the thickness of the PET sheet is preferably in the range of 30 to 250 ⁇ m, and in the range of 40 to 200 ⁇ m, from the viewpoint of lightness and electrical insulation. More preferably, it is more preferably in the range of 50 to 150 ⁇ m.
- the resin sheet can be subjected to a surface modification treatment for improving weather resistance, moisture resistance and the like.
- a surface modification treatment for improving weather resistance, moisture resistance and the like.
- silica (SiO 2 ), aluminum (Al), alumina (Al 2 O 3 ), or the like on the PET sheet, the weather resistance, moisture resistance, and the like of the back protective sheet for the solar cell module can be increased.
- the vapor deposition process of the said silica, aluminum, an alumina, etc. may be performed on both surfaces of a resin sheet, and may be performed only on either one surface.
- the weather resistance and heat and humidity resistance of the back surface protection sheet can be further improved.
- the aluminum sheet used for the base sheet 24 is not particularly limited as long as it does not impair the effects of the present invention, but an aluminum-iron alloy containing iron in the range of 0.7 to 5.0% by mass in a sheet form. More preferred is a sheet of an aluminum-iron alloy containing iron in the range of 1.0 to 2.0% by mass, and aluminum containing iron in the range of 1.2 to 1.7% by mass -A sheet of iron alloy is more preferable. Specific examples include those classified into alloy number 8021 defined in JIS H4160. For example, PACAL21 (trade name) manufactured by Nihon Foil Co., Ltd. can be preferably used as the aluminum-iron alloy in the form of a sheet. Also, BESPA (trade name) manufactured by Sumi Light Aluminum Foil Co., Ltd. can be preferably used.
- the aluminum-iron alloy sheet containing iron within the above range it is possible to improve the water vapor barrier property and the light weight of the back protection sheet 20 for solar cell modules, compared to using a pure aluminum sheet.
- the reason for this is that an aluminum-iron alloy containing iron within the above range is generally superior in rolling processability compared to pure aluminum, and therefore, even when processed into a sheet having a thickness of 20 ⁇ m or less, pinholes are less likely to occur. It is considered that the gas flow through the pinhole can be suppressed, and as a result, the water vapor barrier property of the back surface protection sheet using the aluminum-iron alloy sheet can be enhanced.
- it since it is excellent in rolling processability, it can be processed into a sheet thinner than a pure aluminum sheet while maintaining the water vapor barrier property.
- the back surface protection sheet using the aluminum-iron alloy sheet is lightweight. Can increase the sex.
- the aluminum-iron alloy sheet may contain an element other than iron as long as the effects of the present invention are not impaired.
- an element other than iron for example, magnesium, manganese, copper, silicon, zinc, titanium, etc. are mentioned. These elements may be inevitably contained in the production process of the aluminum-iron alloy, but generally it is considered that the effect of the present invention is not impaired if the content is very small.
- a trace amount content the case where each element is 0.5 mass% or less respectively, More preferably, it is the case where it is 0.3 mass% or less.
- the thickness of the aluminum-iron alloy sheet is not particularly limited as long as the effects of the present invention are not impaired. From the viewpoint of low pinhole occurrence frequency (high water vapor barrier property), light weight, etc., preferably It is 30 ⁇ m or less, more preferably 20 ⁇ m or less, and most preferably 5 to 10 ⁇ m.
- the method of laminating the heat-adhesive sheet 26 on the base sheet 24 via the urethane-based adhesive layer 28 is performed by the urethane-based adhesive layer 28 on the base sheet 24.
- the heat bonding sheet 26 can be laminated by a laminating method.
- the surface of the base sheet 24 on the urethane adhesive layer 28 side may be subjected to corona treatment and / or chemical treatment.
- a thermal adhesive sheet 26 is laminated on a base material sheet 24 via a urethane adhesive layer 28, the thermal adhesive sheet 26 contains a pigment, and urethane. Since the adhesive layer 28 includes a silane coupling agent, the base sheet 24 and the heat-adhesive sheet 26 can be firmly bonded due to the effect of improving the affinity between the pigment and the silane coupling agent. . Accordingly, it is possible to prevent deterioration of functions such as weather resistance, durability, and moist heat resistance due to peeling of the base sheet 24, and to protect the solar cell module while maintaining good adhesion even for long-term outdoor use.
- the back surface protection sheet for solar cell modules which can be provided can be provided.
- a fluororesin layer (not shown) is provided on the side of the base sheet 24 that is different from the side in contact with the urethane adhesive layer 28 (the back side of the base sheet 24). Is preferred.
- the fluororesin layer is not particularly limited as long as it does not impair the effects of the present invention and contains fluorine.
- seat which has a fluorine-containing polymer may be sufficient, and the coating film which apply
- the sheet having the fluorine-containing polymer for example, a sheet obtained by processing a polymer mainly composed of polyvinyl fluoride (PVF), ethylene chlorotrifluoroethylene (ECTFE), or ethylene tetrafluoroethylene (ETFE) into a sheet shape is preferable.
- PVF polyvinyl fluoride
- ECTFE ethylene chlorotrifluoroethylene
- ETFE ethylene tetrafluoroethylene
- the thickness of the sheet having a fluorine-containing polymer is generally preferably in the range of 5 to 200 ⁇ m, more preferably in the range of 10 to 100 ⁇ m, and most preferably in the range of 10 to 50 ⁇ m from the viewpoint of weather resistance and weight reduction.
- the paint having a fluorine-containing polymer is not particularly limited as long as it can be applied by being dissolved in a solvent or dispersed in water.
- the fluorine-containing polymer that may be contained in the paint is not particularly limited as long as it does not impair the effects of the present invention and is a fluorine-containing polymer, but dissolves in the solvent (organic solvent or water) of the paint, Those that can be crosslinked are preferred.
- chlorotrifluoroethylene (CTFE) such as LUMIFLON (trade name) manufactured by Asahi Glass Co., Ltd., CEFLARCOAT (trade name) manufactured by Central Glass Co., Ltd.
- Polymers based on main components Polymers based on tetrafluoroethylene (TFE) such as ZEFFLE (trade name) manufactured by Daikin Industries, Ltd .; Zonyl (trade name) manufactured by DuPont, Unidyne manufactured by Daikin Industries, Ltd.
- TFE tetrafluoroethylene
- Zonyl trade name
- polymers having a fluoroalkyl unit as a main component.
- a polymer containing CTFE as a main component and a polymer containing TFE as a main component are more preferable.
- the LUMIFLON (trade name) and the ZEFFLE (trade name) are preferable. Most preferred.
- the LUMIFLON (trade name) is an amorphous polymer containing CTFE and several kinds of specific alkyl vinyl ethers and hydroxyalkyl vinyl ethers as main structural units.
- a polymer having a monomer unit of hydroxyalkyl vinyl ether, such as LUMIFLON (trade name) is preferable because it is excellent in solvent solubility, crosslinking reactivity, substrate adhesion, pigment dispersibility, hardness, and flexibility.
- the ZEFFLE (trade name) is a copolymer of TFE and an organic solvent-soluble hydrocarbon olefin, and in particular, when it has a hydrocarbon olefin having a highly reactive hydroxyl group, it is solvent-soluble and crosslinking reactivity. , Since it is excellent in substrate adhesion and pigment dispersibility.
- fluorine-containing polymer examples include fluoroolefin polymers having a curable functional group. Specific examples include TFE, isobutylene, vinylidene fluoride (VdF), and hydroxybutyl. Preferred examples include copolymers composed of vinyl ether and other monomers, and copolymers composed of TFE, VdF, hydroxybutyl vinyl ether and other monomers.
- Examples of the copolymerizable monomer in the fluorine-containing polymer that may be contained in the paint include, for example, vinyl acetate, vinyl propionate, butyl butyrate, vinyl isobutyrate, vinyl pivalate, vinyl caproate, vinyl versatate, Examples include vinyl esters of carboxylic acids such as vinyl laurate, vinyl stearate, vinyl cyclohexyl carboxylate, and vinyl benzoate; alkyl vinyl ethers such as methyl vinyl ether, ethyl vinyl ether, butyl vinyl ether, and cyclohexyl vinyl ether.
- the coating material may contain a crosslinking agent, a catalyst, and a solvent, and may further contain an inorganic compound such as a pigment and a filler, if necessary.
- the solvent contained in the paint is not particularly limited as long as it does not impair the effects of the present invention.
- methyl ethyl ketone (MEK), cyclohexanone, acetone, methyl isobutyl ketone (MIBK), toluene, xylene, methanol, isopropanol, ethanol , Heptane, ethyl acetate, isopropyl acetate, n-butyl acetate, or n-butyl alcohol can be preferably used.
- the said solvent has any 1 or more types among MEK or MIBK from a soluble viewpoint of the component contained in a coating material.
- the pigment and filler that may be contained in the paint are not particularly limited as long as the effects of the present invention are not impaired.
- titanium dioxide, carbon black, silica and the like can be mentioned.
- Ti-Pure R105 trade name; manufactured by DuPont
- CAB-O-SIL TS-720 trade name; manufactured by Cabot
- CAB-O-SIL TS-720 which is a modified hydrophobic silica, can be exemplified as a preferable example.
- the coating film is preferably cured with a crosslinking agent in order to improve weather resistance and scratch resistance.
- the crosslinking agent is not particularly limited as long as it does not impair the effects of the present invention, and examples thereof preferably include metal chelates, silanes, isocyanates, and melamines. When it is assumed that the back surface protection sheet for solar cell modules is used outdoors for 30 years or more, aliphatic isocyanates are preferable as the crosslinking agent from the viewpoint of weather resistance.
- the composition of the paint is not particularly limited as long as the effects of the present invention are not impaired.
- LUMIFLON trade name
- a pigment when the entire coating is 100% by mass, LUMIFLON (trade name) is preferably 3 to 80% by mass, more preferably about 10 to 40% by mass, and the pigment is 5 to 60% by mass.
- the amount is preferably about 10 to 30% by weight, and the organic solvent is preferably 20 to 80% by weight, more preferably about 30 to 70% by weight.
- the organic solvent include a mixed solvent of MEK, xylene, and cyclohexanone.
- the catalyst include tin dibutyl dilaurate and tin dioctyl dilaurate, which are used to promote crosslinking between LUMIFLON (trade name) and isocyanate in an organic solvent.
- the coating material As a method of applying the coating material to a surface side different from the surface in contact with the urethane-based adhesive layer 28 of the base sheet 24, it can be performed by a known method, for example, to have a desired film thickness with a rod coater. What is necessary is just to apply.
- the film thickness of the fluororesin layer formed by curing the paint is not particularly limited, and may be, for example, a film thickness of 5 ⁇ m or more. From the viewpoint of water vapor barrier properties, weather resistance and lightness, the thickness of the fluororesin layer is preferably 5 to 50 ⁇ m, more preferably 8 to 40 ⁇ m, and even more preferably 10 to 30 ⁇ m.
- the temperature in the drying process of the applied paint may be any temperature that does not impair the effects of the present invention, and is in the range of about 50 to 130 ° C. from the viewpoint of promoting crosslinking and reducing thermal deformation of the base sheet 24. Is preferred.
- the back surface protection sheet for solar cell modules of this invention can be used as a solar cell module combining the conventionally well-known material for solar cell module formation.
- the solar cell module of the present invention includes a solar cell 104 made of crystalline silicon, amorphous silicon, and the like, and a sealing material (filling layer) made of an electrical insulator that seals the solar cell 104. ) 103, a surface protection sheet (front sheet) 101 laminated on the surface of the sealing material 103, and a back surface protection sheet (back sheet) 102 laminated on the back surface of the sealing material 103.
- a resin whose main component is a transparent resin such as vinyl acetate-ethylene copolymer (EVA), polyvinyl butyral, silicone resin, epoxy resin, fluorinated polyimide resin, acrylic resin, and polyester resin is used. can do. These may be used alone or in combination of two or more.
- the solar cell module back surface protection sheet 20 is used as the back surface protection sheet 102 in FIG. 2, and is laminated on a sealing surface made of a sealing material 103 containing the solar cells 104.
- the solar battery cell 104 and the sealing material 103 in the module can be protected from wind and rain, moisture, dust, mechanical shock, etc., and the inside of the solar battery module can be shielded from the outside air and kept sealed.
- the heat adhesive sheet in the back surface protection sheet for solar cell modules is laminated
- a known method can be applied.
- the back surface protection sheet for solar cell modules was illustrated, The back surface for solar cell modules of this invention
- the protective sheet is not limited to this.
- stacked may be sufficient.
- the film thickness after film formation is 100 ⁇ m and the width is at a cylinder temperature of 220 ° C. and a T die temperature of 220 ° C. using a T-die film forming machine, Labo Plast Mill (manufactured by Toyo Seiki Seisakusho).
- the heat-adhesive sheet 1 was formed by melt extrusion so as to be 300 mm.
- Example 1 100 parts by weight of Takelac A-515 (Mitsui Chemicals, polyester polyol, solid content 60%) and 11.1 parts by weight of Takenate A-50 (Mitsui Chemicals, xylene diisocyanate, solid content 75%) were mixed.
- a urethane adhesive was prepared by adding 2.2 parts by weight of 3-glycidyloxypropyltrimethoxysilane as a silane coupling agent and further adding 278.3 parts by weight of ethyl acetate and mixing them.
- the urethane adhesive is applied to one side of a Melinex S (manufactured by Teijin DuPont Films, Inc., thickness 125 ⁇ m) as a base sheet, and a rod coater is used so that the dry coating thickness is 5 ⁇ m. And then dried at 80 ° C. for 1 minute to form a urethane-based adhesive layer.
- the back surface protective sheet for solar cell modules was obtained by laminating the said heat adhesive sheet 1 at normal temperature on the obtained urethane type adhesive bond layer, and leaving still for 7 days in the environment of 23 degreeC50% RH. About the created back surface protection sheet for solar cell modules, adhesive strength was evaluated by the following method under accelerated test conditions. The results are shown in Table 1.
- the produced back surface protection sheet for solar cell modules was cut into A4 size and allowed to stand in an environment of 85 ° C. and 85% RH for 500 hours, 1000 hours, 1500 hours and 2000 hours.
- peel adhesion strength was evaluated using a T-shaped peel method.
- the back protection sheet for solar cell module is cut to a width of 25 mm and a length of 150 mm, and the base sheet and the heat-adhesive sheet bonded together with an adhesive are placed on the upper and lower sides of a tensile tester (manufactured by Shimadzu Corporation, Autograph AG-50kNX).
- the peel adhesive strength (N / 25 mm) when peeled at a peel rate of 300 mm / min in an environment of 23 ° C. and 50% RH was measured. It shows that adhesive strength is so large that this figure is large.
- Examples 2 to 6 and Comparative Examples 1 and 2 100 parts by weight of Takelac A-515 (Mitsui Chemicals, polyester polyol, solid content 60%) and 11.1 parts by weight of Takenate A-50 (Mitsui Chemicals, xylene diisocyanate, solid content 75%) were mixed.
- a urethane-based adhesive was prepared by adding 2.2 parts by weight of the silane coupling agent shown in Table 1 and mixing and adding 278.3 parts by weight of ethyl acetate.
- the urethane adhesive is applied to one side of a Melinex S (manufactured by Teijin DuPont Films, Inc., thickness 125 ⁇ m) as a base sheet, and a rod coater is used so that the dry coating thickness is 5 ⁇ m. And then dried at 80 ° C. for 1 minute to form a urethane-based adhesive layer.
- the back surface protective sheet for solar cell modules is obtained by laminating the heat-adhesive sheet shown in Table 1 on the obtained urethane-based adhesive layer at room temperature and allowing it to stand for 7 days in an environment of 23 ° C. and 50% RH. It was. About the created back surface protection sheet for solar cell modules, adhesive strength was evaluated by the same method as Example 1 under accelerated test conditions. The results are shown in Table 1.
- Examples 1 to 6 relating to the back surface protective sheet for solar cell module of the present invention have better adhesive strength than Comparative Examples 1 and 2 even under accelerated test conditions of high temperature and high humidity. It was confirmed to show. From this result, it is clear that the back surface protection sheet for solar cell modules of the present invention has excellent wet heat resistance and adhesiveness.
- Examples 7 to 11 and Comparative Example 3 100 parts by weight of Takelac A-515 (Mitsui Chemicals, polyester polyol, solid content 60%) and 11.1 parts by weight of Takenate A-50 (Mitsui Chemicals, xylene diisocyanate, solid content 75%) were mixed.
- a urethane-based adhesive was prepared by adding 2.2 parts by weight of the silane coupling agent shown in Table 2 and then adding and mixing 278.3 parts by weight of ethyl acetate.
- the urethane adhesive is applied to one side of a MERENEX 238 (manufactured by Teijin DuPont Films, Inc., 125 ⁇ m thick), which is a PET film with a low oligomer content, and a rod coater is attached so that the dry coating thickness is 5 ⁇ m. It was applied and dried at 80 ° C. for 1 minute to form a urethane-based adhesive layer.
- the back surface protective sheet for solar cell modules was obtained by laminating the said heat adhesive sheet 1 at normal temperature on the obtained urethane type adhesive bond layer, and leaving still for 7 days in the environment of 23 degreeC50% RH.
- the prepared back surface protection sheet for solar cell module is stored under the conditions of 121 ° C., 100% RH, 2 atm, and the adhesive strength over time after storage for 24 hours, 48 hours, 96 hours is the same method as in Example 1 above. Measured with The results are shown in Table 2.
- the base sheet and the heat-adhesive sheet are adhered with good adhesion by laminating the heat-adhesive sheet containing the pigment on the base sheet via the urethane-based adhesive layer containing the silane coupling agent.
- the back surface protection sheet for solar cell modules which can be match
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Abstract
Description
本願は、2009年3月30日に、日本に出願された特願2009-081037号に基づき優先権を主張し、その内容をここに援用する。
図2は、一般的な太陽電池モジュールの一例を示す概略断面図である。
この太陽電池モジュール100は、結晶シリコン、アモルファスシリコンなどからなる太陽電池セル104と、太陽電池セル104を封止する電気絶縁体からなる封止材(充填層)103と、封止材103の表面に積層された表面保護シート(フロントシート)101と、封止材103の裏面に積層された裏面保護シート(バックシート)102とから概略構成されている。なお、フロントシート101は、基材がガラス板であることもある。
なお、この形態は、発明の趣旨をより良く理解させるために具体的に説明するものであり、特に指定のない限り、本発明を限定するものではない。
この実施形態の太陽電池モジュール用裏面保護シート20は、基材シート24に熱接着性シート26がウレタン系接着剤層28を介して積層された積層構造をなしている。
上記縮合系ポリエステルポリオールを形成する多塩基性カルボン酸としては、具体的には、グルタル酸、アジピン酸、アゼライン酸、ピメリン酸、スペリン酸、セバシン酸、テレフタル酸、イソフタル酸、ダイマー酸、他の低分子カルボン酸、オリゴマー酸、ヒマシ油、ヒマシ油とエチレングリコールとの反応生成物等のヒドロキシカルボン酸等が挙げられる。
また、上記ラクトン系ポリオールとしては、具体的には、プロピオンラクトン、バレロラクトン等の開環重合体等が挙げられる。
また、ビスフェノール骨格を有するポリエステルポリオールとしては、上記低分子多価アルコール類に代えて、または低分子多価アルコール類ともに、ビスフェノール骨格を有するジオールを用いて得られる縮合系ポリエステルポリオールが挙げられる。具体的には、ビスフェノールAとヒマシ油とから得られるポリエステルポリオール、ビスフェノールAヒマシ油とエチレングリコールとプロピレングリコールとから得られるポリエステルポリオール等が挙げられる。
その他のポリオールとしては、具体的には、ポリカーボネートジオール、アクリルポリオール;ポリブタジエンポリオール;水素添加されたポリブタジエンポリオール等の炭素-炭素結合を主鎖骨格に有するポリマーポリオール;等が挙げられる。
これらのポリオール化合物の中で、ポリエステルポリオール、ポリエステルポリオール、ポリエーテルポリオール、ポリカーボネートジオール、アクリルポリオール、あるいは2官能以上のイソシアネートにより鎖伸張を施したポリエステルウレタンポリオール、ポリエーテルウレタンポリオール、ポリカーボネートウレタンジオール、アクリルウレタンポリオールが耐熱性、安定性の理由により好ましい。
これらのイソシアネート化合物の中で、キシレンジイソシアネート、テトラメチルキシリレンジイソシアネート、ヘキサメチレンジイソシアネート、トリメチルヘキサメチレンジイソシアネート、イソホロンジイソシアネートが耐候性に優れているため好ましい。
本発明におけるウレタン系接着剤層28を形成するウレタン系接着剤に含まれるイソシアネート化合物は1種単独または2種以上を併用してもよく、その総使用量は、前記ウレタン系接着剤に含まれるポリオール100重量部に対して、5~40重量部が好ましく、10~30重量部がより好ましく、10~20重量部がさらに好ましい。
本発明におけるウレタン系接着剤層を形成するウレタン系接着剤に含まれるシランカップリング剤は1種単独または2種以上を併用してもよく、その総使用量は、前記ウレタン系接着剤に含まれるポリオール100重量部に対して、0.01~30重量部が好ましく、0.05~10重量部がより好ましく、0.1~3重量部がさらに好ましい。
基材シート24上に前記ウレタン系接着剤を塗布する方法としては、特に限定されない。従来公知の方法、例えば、ナイフコート法、ロールコート法、バーコート法、ブレードコート法、ダイコート法、グラビアコート法等が挙げられ、いずれを用いてもよい。
ウレタン系接着剤層28の厚みは、1μm~50μmが好ましく、3μm~30μmがさらに好ましい。
前記PETシートは、耐加水分解性を有するものが好ましく、オリゴマーの含有量が少ないものが耐加水分解性を有することが知られている。耐加水分解性を有するPETシートとしては、メリネックス238(商品名;帝人デュポンフィルム社製)などが挙げられる。
前記フッ素樹脂層としては、本発明の効果を損なわず、フッ素を含む層であれば特に制限されない。例えばフッ素含有ポリマーを有するシートであってもよく、フッ素含有ポリマーを有する塗料を塗布した塗膜であってもよい。裏面保護シートの軽量化のために前記フッ素樹脂層をより薄くする観点から、フッ素含有ポリマーを有する塗料を塗布した塗膜であることが好ましい。
前記フッ素含有ポリマーを有するシートの厚さとしては、耐候性および軽量化の観点から、一般に5~200μmの範囲が好ましく、10~100μmの範囲がより好ましく、10~50μmの範囲が最も好ましい。
前記塗料に含まれていてもよいフッ素含有ポリマーとしては、本発明の効果を損なわず、フッ素を含有するポリマーであれば特に限定されないが、前記塗料の溶媒(有機溶媒または水)に溶解し、架橋可能であるものが好ましい。該フッ素含有ポリマーの好ましい例としては、旭硝子社製のLUMIFLON(商品名)、セントラル硝子社製のCEFRALCOAT(商品名)、DIC社製のFLUONATE(商品名)等のクロロトリフルオロエチレン(CTFE)を主成分としたポリマー類;ダイキン工業社製のZEFFLE(商品名)等のテトラフルオロエチレン(TFE)を主成分としたポリマー類;デュポン社製のZonyl(商品名)、ダイキン工業社製のUnidyne(商品名)等のフルオロアルキル基を有するポリマー、およびフルオロアルキル単位を主成分としたポリマー類が挙げられる。これらの中でも、耐候性および顔料分散性等の観点から、CTFEを主成分としたポリマーおよびTFEを主成分としたポリマーがより好ましく、なかでも前記LUMIFLON(商品名)および前記ZEFFLE(商品名)が最も好ましい。
前記ZEFFLE(商品名)は、TFEと有機溶媒可溶性の炭化水素オレフィンとの共重合体であり、なかでも反応性の高い水酸基を備えた炭化水素オレフィンを有する場合には、溶剤可溶性、架橋反応性、基材密着性、および顔料分散性に優れるので好ましい。
前記有機溶媒としては、MEKとキシレンとシクロヘキサノンとの混合溶媒が例示できる。また、前記触媒としては、ジブチルジラウリン酸スズ、ジオクチルジラウリン酸スズを例示でき、有機溶媒中でLUMIFLON(商品名)とイソシアネートとの架橋を促進するために用いられる。
前記塗料が硬化して形成される前記フッ素樹脂層の膜厚としては特に限定されず、例えば5μm以上の膜厚とすればよい。水蒸気バリア性、耐候性および軽量性の観点から、該フッ素樹脂層の膜厚としては、5~50μmが好ましく、8~40μmがより好ましく、10~30μmがさらに好ましい。
前記塗布した塗料の乾燥プロセスにおける温度は、本発明の効果を損なわない温度であればよく、架橋促進及び基材シート24の熱変形を低減する観点から、50~130℃程度の範囲であることが好ましい。
本発明の太陽電池モジュールは、例えば、図2に示すように、結晶シリコン、アモルファスシリコンなどからなる太陽電池セル104と、太陽電池セル104を封止する電気絶縁体からなる封止材(充填層)103と、封止材103の表面に積層された表面保護シート(フロントシート)101と、封止材103の裏面に積層された裏面保護シート(バックシート)102とから構成されている。
封止材103としては、酢酸ビニル―エチレン共重合体(EVA)、ポリビニルブチラール、シリコーン樹脂、エポキシ樹脂、フッ素化ポリイミド樹脂、アクリル樹脂、ポリエステル樹脂などの透明な樹脂を主成分とする樹脂を使用することができる。これらを単独で使用してもよいし、二種類以上を混合して使用してもよい。
本発明の太陽電池モジュール用裏面保護シートを封止面に積層させる場合、太陽電池モジュール用裏面保護シートにおける熱接着性シートを封止面に積層させる。その積層方法としては、公知の方法を適用することができる。
エバフレックスV5961(三井・デュポンポリケミカル社製、エチレン酢酸ビニル共重合体、エチレン:酢酸ビニル=91:9)100重量部と顔料として二酸化チタンGTR-300(堺化学工業社製)6.0重量部とを混合し、Tダイ製膜機ラボプラストミル(東洋精機製作所社製)を使用して、シリンダー温度220℃、Tダイ温度220℃にて、製膜後の膜厚が100μm、幅が300mmとなるように溶融押出しして、熱接着性シート1を形成した。
エバフレックスV5961(三井・デュポンポリケミカル社製、エチレン酢酸ビニル共重合体、エチレン:酢酸ビニル=91:9)100重量部と顔料としてカーボンブラックMA230(三菱化学社製)1.5重量部とを混合し、Tダイ製膜機ラボプラストミル(東洋精機製作所社製)を使用して、シリンダー温度220℃、Tダイ温度220℃にて、製膜後の膜厚が100μm、幅が300mmとなるように溶融押出しして、熱接着性シート2を形成した。
エバフレックスV5961(三井・デュポンポリケミカル社製、エチレン酢酸ビニル共重合体、エチレン:酢酸ビニル=91:9)を、Tダイ製膜機ラボプラストミル(東洋精機製作所社製)を使用して、シリンダー温度220℃、Tダイ温度220℃にて、製膜後の膜厚が100μm、幅が300mmとなるように溶融押出しして、顔料を含まない熱接着性シートである熱接着性シート3を形成した。
タケラックA-515(三井化学社製、ポリエステルポリオール、固形分60%)100重量部と、タケネートA-50(三井化学社製、キシレンジイソシアネート、固形分75%)11.1重量部とを混合したものに、シランカップリング剤として3-グリシジルオキシプロピルトリメトキシシラン2.2重量部を添加し、さらに酢酸エチル278.3重量部を加えて混合することにより、ウレタン系接着剤を調製した。
次に、基材シートとしてPETフィルムであるメリネックスS(帝人デュポンフィルム社製、厚さ125μm)の片面に、上記ウレタン系接着剤を、乾燥塗膜厚さが5μmとなるようにロッドコーターを用いて塗工し、80℃で1分間乾燥してウレタン系接着剤層を形成した。得られたウレタン系接着剤層に上記熱接着性シート1を常温にてラミネートし、23℃50%RHの環境にて7日間静置することにより、太陽電池モジュール用裏面保護シートを得た。
作成した太陽電池モジュール用裏面保護シートについて、下記の方法により、促進試験条件下で、接着強度の評価を行った。結果を表1に示す。
作成した太陽電池モジュール用裏面保護シートをA4サイズに切り取り、85℃、85%RHの環境下で500時間、1000時間、1500時間および2000時間静置した。
ISO 11339に準じて、T形剥離法を用いて剥離接着強度を評価した。太陽電池モジュール用裏面保護シートを幅25mm、長さ150mmに切り取り、接着剤で貼り合わされた基材シートと熱接着性シートを引張り試験機(島津製作所社製、オートグラフ AG-50kNX)の上下のつかみ具にそれぞれ固定し、23℃50%RHの環境下で、剥離速度300mm/minにて剥がした際の剥離接着強度(N/25mm)を測定した。この数値が大きいほど、接着強度が大きいことを示す。
タケラックA-515(三井化学社製、ポリエステルポリオール、固形分60%)100重量部と、タケネートA-50(三井化学社製、キシレンジイソシアネート、固形分75%)11.1重量部とを混合したものに、表1記載のシランカップリング剤を2.2重量部を添加し、さらに酢酸エチル278.3重量部を加えて混合することにより、ウレタン系接着剤を調製した。
次に、基材シートとしてPETフィルムであるメリネックスS(帝人デュポンフィルム社製、厚さ125μm)の片面に、上記ウレタン系接着剤を、乾燥塗膜厚さが5μmとなるようにロッドコーターを用いて塗工し、80℃で1分間乾燥してウレタン系接着剤層を形成した。得られたウレタン系接着剤層に表1記載の熱接着性シートを常温にてラミネートし、23℃50%RHの環境にて7日間静置することにより、太陽電池モジュール用裏面保護シートを得た。
作成した太陽電池モジュール用裏面保護シートについて、実施例1と同様の方法により、促進試験条件下で、接着強度の評価を行った。結果を表1に示す。
A-1:3-グリシジルオキシプロピルトリメトキシシラン
A-2:フェニルトリメトキシシラン
A-3:テトラエトキシシラン
A-4:3-アセトキシプロピルトリメトキシシラン
A-5:3-アミノプロピルトリメトキシシラン
B-1:上記熱接着性シート1
B-2:上記熱接着性シート2
B-3:上記熱接着性シート3
タケラックA-515(三井化学社製、ポリエステルポリオール、固形分60%)100重量部と、タケネートA-50(三井化学社製、キシレンジイソシアネート、固形分75%)11.1重量部とを混合したものに、表2記載のシランカップリング剤を2.2重量部を添加し、さらに酢酸エチル278.3重量部を加えて混合することにより、ウレタン系接着剤を調整した。
次に、オリゴマー含有量の少ないPETフィルムであるメリネックス238(帝人デュポンフィルム社製、厚さ125μm)の片面に、上記ウレタン系接着剤を、乾燥塗膜厚さが5μmとなるようにロッドコーターを用いて塗工し、80℃で1分間乾燥してウレタン系接着剤層を形成した。得られたウレタン系接着剤層に上記熱接着性シート1を常温にてラミネートし、23℃50%RHの環境にて7日間静置することにより、太陽電池モジュール用裏面保護シートを得た。
作成した太陽電池モジュール用裏面保護シートを121℃、100%RH、2atmの条件下で保管し、24時間、48時間、96時間保管後の経時での接着強度を上記実施例1と同様の方法で測定した。結果を表2に示す。
A-1:3-グリシジルオキシプロピルトリメトキシシラン
A-2:フェニルトリメトキシシラン
A-3:テトラエトキシシラン
A-4:3-アセトキシプロピルトリメトキシシラン
A-5:3-アミノプロピルトリメトキシシラン
24 基材シート
26 熱接着性シート
28 ウレタン系接着剤層
100 太陽電池モジュール
101 フロントシート(表面保護シート)
102 バックシート(裏面保護シート)
103 封止材
104 太陽電池セル
Claims (3)
- 基材シートの少なくとも一方の面に熱接着性シートがウレタン系接着剤層を介して積層され構成された太陽電池モジュール用裏面保護シートにおいて、
該熱接着性シートが顔料を含み、該ウレタン系接着剤層がシランカップリング剤を含む太陽電池モジュール用裏面保護シート。 - 前記熱接着性シートに含まれる顔料が、無機顔料またはカーボンブラックである請求項1記載の太陽電池モジュール用裏面保護シート。
- 請求項1または2に記載の太陽電池モジュール用裏面保護シートを備える太陽電池モジュール。
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KR1020117022999A KR101347547B1 (ko) | 2009-03-30 | 2010-03-19 | 태양전지 모듈용 뒷면 보호시트 및 이를 구비한 태양전지 모듈 |
CN2010800148140A CN102365756A (zh) | 2009-03-30 | 2010-03-19 | 太阳能电池组件用背面保护片及具有该保护片的太阳能电池组件 |
EP10761335.8A EP2416379A4 (en) | 2009-03-30 | 2010-03-19 | REAR SURFACE PROTECTIVE SHEET FOR SOLAR CELL MODULE AND SOLAR CELL MODULE USING SAID PROTECTIVE SHEET |
US13/260,800 US20120034460A1 (en) | 2009-03-30 | 2010-03-19 | Protective sheet for back surface of solar cell module, and solar cell module provided therewith |
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JP2009081037A JP2010232588A (ja) | 2009-03-30 | 2009-03-30 | 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てなる太陽電池モジュール |
JP2009-081037 | 2009-03-30 |
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WO2010116627A1 true WO2010116627A1 (ja) | 2010-10-14 |
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US (1) | US20120034460A1 (ja) |
EP (1) | EP2416379A4 (ja) |
JP (1) | JP2010232588A (ja) |
KR (1) | KR101347547B1 (ja) |
CN (1) | CN102365756A (ja) |
WO (1) | WO2010116627A1 (ja) |
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Also Published As
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US20120034460A1 (en) | 2012-02-09 |
JP2010232588A (ja) | 2010-10-14 |
KR101347547B1 (ko) | 2014-01-10 |
CN102365756A (zh) | 2012-02-29 |
EP2416379A4 (en) | 2013-11-27 |
EP2416379A1 (en) | 2012-02-08 |
KR20110123276A (ko) | 2011-11-14 |
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