WO2015068691A1 - 接着フィルム、太陽電池用封止材、太陽電池モジュール、合わせガラス用中間膜及び合わせガラス - Google Patents

接着フィルム、太陽電池用封止材、太陽電池モジュール、合わせガラス用中間膜及び合わせガラス Download PDF

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WO2015068691A1
WO2015068691A1 PCT/JP2014/079228 JP2014079228W WO2015068691A1 WO 2015068691 A1 WO2015068691 A1 WO 2015068691A1 JP 2014079228 W JP2014079228 W JP 2014079228W WO 2015068691 A1 WO2015068691 A1 WO 2015068691A1
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Prior art keywords
solar
sealing material
adhesive film
glass
laminated
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PCT/JP2014/079228
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English (en)
French (fr)
Japanese (ja)
Inventor
斉 杉山
しのぶ 日高
純弥 河邉
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シーアイ化成株式会社
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Application filed by シーアイ化成株式会社 filed Critical シーアイ化成株式会社
Priority to CN201480058920.7A priority Critical patent/CN105706250A/zh
Priority to JP2015546644A priority patent/JPWO2015068691A1/ja
Priority to KR1020167011113A priority patent/KR20160082985A/ko
Publication of WO2015068691A1 publication Critical patent/WO2015068691A1/ja

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/10—Adhesives in the form of films or foils without carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10678—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer comprising UV absorbers or stabilizers, e.g. antioxidants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10697—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer being cross-linked
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10788—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing ethylene vinylacetate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/005—Stabilisers against oxidation, heat, light, ozone
    • 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
    • H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
    • 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
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • 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
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0041—Optical brightening agents, organic pigments
    • 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
    • C08K5/54—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/322—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of solar panels
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer
    • 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 an adhesive film, a solar cell sealing material, a solar cell module, an interlayer film for laminated glass, and a laminated glass.
  • ethylene-polar group-containing monomer copolymers ethylene-vinyl acetate copolymer, etc.
  • a sealing material for solar cells (hereinafter also simply referred to as a sealing material) formed of a sealing resin is widely used.
  • a silane coupling agent is often blended in the sealing material for the purpose of enhancing the adhesiveness with a transparent protective material such as a glass plate disposed on the surface side of the solar cell module or a back sheet.
  • the silane coupling agent is hydrolyzed by moisture in the sealing resin or in the air during storage, and is easily deteriorated by causing a condensation reaction.
  • the silane coupling agent is altered by hydrolysis or condensation, there are problems that the cross-linking characteristics of the sealing resin are not as designed, or the silanol groups are reduced and the adhesiveness of the sealing material is lowered.
  • the present invention relates to an adhesive film, a solar cell encapsulant, and a solar cell module using the solar cell encapsulant that have a good adhesiveness even after long-term storage because the silane coupling agent is not easily altered. I will provide a. Moreover, the intermediate film for laminated glasses which consists of an adhesive film, and a laminated glass are provided.
  • the adhesive film of the present invention includes a sealing resin, a silane coupling agent, and a basic compound of pK b of 5 to 12.
  • the basic compound is preferably a light stabilizer of pK b is 5-12.
  • the sealing material for solar cells of this invention consists of the said adhesive film.
  • the solar cell module of this invention is equipped with a photovoltaic cell and a pair of said solar cell sealing material of this invention which clamped the said photovoltaic cell.
  • the interlayer film for laminated glass of the present invention comprises the adhesive film.
  • the laminated glass of the present invention comprises a pair of glass plates and the interlayer film for laminated glass sandwiched between the pair of glass plates.
  • the adhesive film of the present invention hardly deteriorates the silane coupling agent and has good adhesiveness even after long-term storage.
  • the adhesive film has good adhesiveness and is less likely to cause problems such as peeling.
  • the adhesive film of the present invention contains a sealing resin, a silane coupling agent, and a basic compound having a pK b of 5 to 12 (hereinafter referred to as a basic compound (A)). Moreover, the adhesive film of this invention may also contain other additives other than sealing resin, a silane coupling agent, and a basic compound (A).
  • the sealing material of this invention consists of an adhesive film.
  • the sealing resin a resin usually used for a sealing material can be used.
  • an ethylene-polar group-containing monomer copolymer is preferable from the viewpoint of excellent transparency, processability and crosslinkability.
  • the polar group include an ester group (—C (O) O—R or R—C (O) O— (wherein R is an alkyl group)), a carboxyl group, and the like.
  • the monomer having a polar group examples include, for example, vinyl ester (vinyl acetate and the like), alkyl (meth) acrylate (methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate), Butyl (meth) acrylate), unsaturated carboxylic acid ((meth) acrylic acid, etc.), unsaturated dicarboxylic acid anhydride (maleic anhydride, etc.), unsaturated dicarboxylic acid ester (monomethyl maleate, maleic acid) Dimethyl etc.).
  • Examples of the ethylene-polar group-containing monomer copolymer include an ethylene-vinyl acetate copolymer (hereinafter also referred to as EVA) and an ethylene- (meth) acrylic acid alkyl ester copolymer from the viewpoint of flexibility and transparency. EVA is preferred, with EVA being particularly preferred.
  • the ratio of the monomer unit having a polar group in the ethylene-polar group-containing monomer copolymer is that of all structural units (100% by mass) from the viewpoints of heat resistance, adhesiveness, flexibility, moldability, durability, and insulation. Of these, 10 to 40% by mass is preferable, and 15 to 35% by mass is more preferable.
  • the mass average molecular weight of the ethylene-polar group-containing monomer copolymer is preferably 10,000 to 300,000, more preferably 100,000 to 170,000. If the mass average molecular weight of the ethylene-polar group-containing monomer copolymer is not less than the lower limit, a sealing material having good mechanical properties can be easily obtained. When the mass average molecular weight of the ethylene-polar group-containing monomer copolymer is not more than the above upper limit, a sealing material excellent in processability can be easily obtained.
  • the mass average molecular weight is a value measured using gel permeation chromatography.
  • sealing resin polyethylene, polypropylene, acrylic resin, or the like may be used.
  • the sealing resin may be used alone or in combination of two or more.
  • silane coupling agent plays the role which improves the adhesiveness of a photovoltaic cell, a transparent protective material, a back sheet etc., and a sealing material.
  • the silane coupling agent normally used for a sealing material can be used.
  • Specific examples of the silane coupling agent include, for example, 3-methacryloxypropyltrimethoxysilane, 3-methacryloxypropyltrimethyldimethoxysilane, allyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, 3-mercaptopropyltrimethyl. Examples include methoxysilane, vinyltrimethoxysilane, 3-glycidoxypropylmethyldimethoxysilane, and the like.
  • silane coupling agent a silane coupling agent having a trimethoxysilane group is preferable from the viewpoint of adhesiveness, and 3-methacryloxypropyltrimethoxysilane and 3-methacryloxypropyltriethoxysilane are more preferable.
  • a silane coupling agent may be used individually by 1 type, and may use 2 or more types together.
  • Basic compound (A) is a basic compound pK b is 5-12.
  • pK b can be determined by potentiometric titration of the Japanese Industrial Standard JIS K 2501 neutralization titration.
  • the basic compound (A) may be a basic compound pK b is 5-12, high light resistance, from the viewpoint of not easily discolored due oxidation, pK b of 5 to 12 light stabilizer ( Hereinafter, the light stabilizer (a) is also preferable.
  • a basic compound (A) may be used individually by 1 type, and may use 2 or more types together.
  • additives examples include ultraviolet absorbers, light stabilizers other than the light stabilizer (a), antioxidants, crosslinking agents, crosslinking aids, pigments, dyes, plasticizers, fillers, and the like.
  • the sealing material of the present invention preferably contains a crosslinking agent, and more preferably contains a crosslinking agent and a crosslinking aid.
  • the crosslinking agent is a component that crosslinks the sealing resin.
  • examples of the crosslinking agent include known organic peroxides (peroxyketals, dialkyl peroxides, peroxyesters, etc.), photosensitizers and the like.
  • the crosslinking aid is a compound having one or more (preferably two or more) polymerizable unsaturated groups (vinyl group, allyl group, (meth) acryloxy group, etc.).
  • examples of the crosslinking aid include triallyl isocyanurate, triallyl cyanurate, and trimethylolpropane trimethacrylate.
  • UV absorbers examples include benzophenone UV absorbers, benzotriazole UV absorbers, and salicylic acid ester UV absorbers.
  • Examples of the light stabilizer other than the light stabilizer (a) include bis (2,2,6,6-tetramethylpiperidin-4-yl) sebacate (4 ⁇ pK b ⁇ 5), 3- (2, 2,6,6-tetramethyl-4-piperidinyl) -2-methyl-1-propen-3-one (4 ⁇ pK b ⁇ 5) and the like.
  • the content of the silane coupling agent in the sealing material of the present invention is preferably 0.1 to 2 parts by weight, more preferably 0.2 to 1.0 parts by weight with respect to 100 parts by weight of the sealing resin. . If content of a silane coupling agent is more than the said lower limit, the outstanding adhesiveness will be easy to be obtained. If content of a silane coupling agent is below the said upper limit, it is advantageous in terms of cost.
  • the content of the crosslinking agent is preferably more than 0 parts by mass and less than 5 parts by mass, more than 0 parts by mass and less than 2 parts by mass with respect to 100 parts by mass of the sealing resin. Is more preferable.
  • the amount of the crosslinking aid used is preferably more than 0 parts by mass and less than 5 parts by mass, more than 0 parts by mass and more than 2 parts by mass with respect to 100 parts by mass of the sealing resin. Part or less is more preferable.
  • a sealing material suitably according to a solar cell module, and 0.05-1 mm is preferable.
  • the thickness of the sealing material is set to the lower limit value or more, it becomes easy to seal the solar battery cell. If the thickness of the sealing material is set to the upper limit value or less, the solar cell module can be thinned.
  • the manufacturing method of the sealing material of this invention is not specifically limited, For example, resin for sealing, a silane coupling agent, a basic compound (A), and the other additive used as needed are mixed. Examples thereof include a method of forming the resin composition into a sheet after obtaining the resin composition. Examples of the sheet forming method include an extrusion molding method using a T die, a press molding method, and the like. Moreover, when making a resin composition into a solution, it can also be formed into a sheet by applying the resin composition to a release sheet and drying.
  • certain basic low basic compound pK b (A) because it contains a silane coupling agent during storage of the sealing material is hydrolyzed and condensed Is prevented from changing over time. Further, since it is not necessary to adjust the structure and coordination number of the condensation reaction site of the silane coupling agent to reduce the speed of the condensation reaction, sufficient adhesion of the silane coupling agent can be obtained. From the above, the sealing material of the present invention has good adhesiveness even after long-term storage, and can produce a solar cell module that is less prone to problems such as peeling.
  • the solar cell module 10 of this embodiment includes a plurality of solar cells 11, 11... And a pair of solar cell sealing materials 12, 12 (hereinafter referred to as a sealing material 12). ), A transparent protective material 13, and a back sheet 14.
  • the solar battery cell 11 is sandwiched and fixed between a pair of sealing materials 12 and 12. Further, the sealing materials 12 and 12 are disposed between the transparent protective material 13 and the back sheet 14.
  • the sealing material 12 is the sealing material of the present invention.
  • Examples of the solar battery cell 11 include a pn junction solar battery element having a structure in which a p-type semiconductor and an n-type semiconductor are joined.
  • Examples of the pn junction solar cell element include silicon (single crystal silicon, polycrystalline silicon, amorphous silicon, etc.), compound (GaAs, CIS, CdTe-CdS) and the like.
  • the plurality of solar cells 11 are electrically connected in series via a tab string 15 having a conductive wire and a solder joint.
  • Transparent protective material As the transparent protective material 13, a member usually used for protecting the surface side of the solar cell module can be used, and examples thereof include a glass plate and a resin plate.
  • a glass plate As a glass plate, the template glass which formed the unevenness
  • white plate glass high transmission glass with less iron content is preferable.
  • back sheet 14 what is normally used as a back sheet of a solar cell module can be used.
  • the material of the back sheet 14 include polyvinyl fluoride, polyester (polyethylene terephthalate, etc.), polyolefin (polyethylene, etc.), glass, metal (aluminum, etc.), and the like.
  • the backsheet 14 may be a single layer or a multilayer.
  • the manufacturing method of the solar cell module of this invention can employ
  • the following method is mentioned as a manufacturing method of the solar cell module 10.
  • a plurality of solar cells 11, 11... Electrically connected using a tab string 15 are sandwiched between a pair of sealing materials 12, 12, and the sealing materials 12, 12 are further sandwiched between a transparent protective material 13 and a back sheet 14. And pinch. Then, it heats and the sealing materials 12 and 12, the sealing material 12, the transparent protective material 13, and the sealing material 12 and the backsheet 14 are adhere
  • the sealing material 12 contains a crosslinking agent
  • the sealing resin contained in the sealing material 12 can be crosslinked, and the durability of the sealing material 12 can be further improved.
  • the solar cell module of the present invention described above uses the sealing material of the present invention having good adhesiveness, problems such as peeling are unlikely to occur.
  • the solar cell module of the present invention is not limited to the solar cell module 10 described above.
  • an interlayer film for laminated glass made of the adhesive film may be used.
  • EXAMPLES Hereinafter, although an Example demonstrates this invention in detail, this invention is not limited by the following description.
  • [Compound] Abbreviations of the compounds used are shown below.
  • EVA-1 ethylene-vinyl acetate copolymer (product name “SEETEC VE700”, proportion of vinyl acetate units: 28% by mass, manufactured by Konan Petrochemical Co., Ltd.)
  • (Silane coupling agent) b-1 3-Methacryloxypropyltrimethoxysilane (product name “KBM-503”, manufactured by Shin-Etsu Silicone).
  • (Crosslinking agent) c-1 t-Butylperoxy-2-ethylhexyl monocarbonate (product name “Kayahexa AD”, manufactured by Kayaku Akzo Corporation).
  • (Crosslinking aid) d-1 triallyl isocyanurate (product name “TAIC (registered trademark)”, manufactured by Nippon Kasei Co., Ltd.).
  • Example 1 100 parts by weight of EVA-1, 0.2 parts by weight of a light stabilizer (a-1) as a basic compound, 0.2 parts by weight of a silane coupling agent (b-1), a crosslinking agent (c- 1) 0.5 parts by mass and 0.5 parts by mass of the crosslinking aid (d-1) were mixed to obtain a resin composition.
  • the obtained resin composition was made into a sheet by extrusion molding using a single screw extruder to obtain a sealing material.
  • Examples 2 to 8 A sealing material was obtained in the same manner as in Example 1 except that the composition of each component was changed as shown in Table 1.
  • the sealing materials of Examples 1 to 8 including the light stabilizer that is a basic compound having a pK b of 5 to 12 any of 23 ° C. ⁇ 85% RH and 30 ° C. ⁇ 60% RH Even when stored under the above conditions, the peel strength after 12 months was 36 N / cm or more, and a decrease in adhesiveness was suppressed.
  • the sealing materials of Comparative Examples 1 to 5 containing a light stabilizer having a pK b of less than 5 but not containing a basic compound having a pK b of 5 to 12 were 23 ° C. ⁇ 85 Even when stored under the conditions of% RH and 30 ° C. ⁇ 60% RH, the peel strength after 12 months was less than 19 N / cm, and the adhesiveness of the sealing material was significantly reduced.
  • the silane coupling agent is unlikely to be altered and has good adhesiveness even after long-term storage, the solar cell encapsulant, and the solar cell using the solar cell encapsulant
  • a battery module can be provided.
  • the intermediate film for laminated glasses which consists of an adhesive film, and a laminated glass are provided.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electromagnetism (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Photovoltaic Devices (AREA)
  • Sealing Material Composition (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)
PCT/JP2014/079228 2013-11-05 2014-11-04 接着フィルム、太陽電池用封止材、太陽電池モジュール、合わせガラス用中間膜及び合わせガラス WO2015068691A1 (ja)

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JP2015546644A JPWO2015068691A1 (ja) 2013-11-05 2014-11-04 接着フィルム、太陽電池用封止材、太陽電池モジュール、合わせガラス用中間膜及び合わせガラス
KR1020167011113A KR20160082985A (ko) 2013-11-05 2014-11-04 접착 필름, 태양전지용 밀봉재, 태양전지 모듈, 접합 유리용 중간막 및 접합 유리

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JPH06169099A (ja) * 1992-08-03 1994-06-14 Siemens Solar Ind Internatl Inc 太陽電池を封入するための組成物及び方法及び硬化した透明封入剤
WO2010101211A1 (ja) * 2009-03-06 2010-09-10 株式会社ブリヂストン 熱線遮蔽性積層体、及びこれを用いた熱線遮蔽性合わせガラス
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