WO2015102093A1 - ガラス基材積層体の製造方法、光学素子の製造方法、光学素子及び集光型太陽光発電装置 - Google Patents
ガラス基材積層体の製造方法、光学素子の製造方法、光学素子及び集光型太陽光発電装置 Download PDFInfo
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- WO2015102093A1 WO2015102093A1 PCT/JP2014/084553 JP2014084553W WO2015102093A1 WO 2015102093 A1 WO2015102093 A1 WO 2015102093A1 JP 2014084553 W JP2014084553 W JP 2014084553W WO 2015102093 A1 WO2015102093 A1 WO 2015102093A1
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- glass substrate
- interface
- molded body
- optical element
- resin molded
- Prior art date
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Classifications
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- G02B19/0009—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only
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- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0038—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with ambient light
- G02B19/0042—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with ambient light for use with direct solar radiation
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- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
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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
- H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
- H01L31/0543—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the refractive type, e.g. lenses
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
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- H10K30/80—Constructional details
- H10K30/87—Light-trapping means
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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
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- Y02E10/52—PV systems with concentrators
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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
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Definitions
- the present invention relates to a glass substrate laminate manufacturing method, an optical element manufacturing method, an optical element, and a concentrating solar power generation device.
- solar power generation that converts solar energy into electric power using a solar cell.
- solar power generation in order to increase power generation efficiency (photoelectric conversion efficiency) and obtain large power, sunlight is collected on each solar cell element on the front side of a plurality of solar cell elements arranged on the same plane.
- a concentrating solar power generation apparatus having a configuration in which an optical element (condensing lens) for causing light to be emitted is known (see, for example, Patent Document 1).
- the concentrating solar power generation device can reduce the size of an expensive solar cell element by concentrating sunlight with an optical element (condensing lens) and receiving the light to the solar cell element. Cost can be reduced. For this reason, the concentrating solar power generation apparatus is spreading as a power supply application in a vast area where the sunshine duration is long and the condensing surface can be installed even when the condensing surface is enlarged.
- an adhesive such as a silicone resin has been used for bonding an optical member (for example, a sheet-like optical element) made of an acrylic resin having both transparency and light resistance to a glass substrate.
- an optical member for example, a sheet-like optical element
- an acrylic resin having both transparency and light resistance
- this invention manufactures the glass base material laminated body which can adhere
- a method for producing a glass substrate laminate according to the present invention is a method for producing a glass substrate laminate in which a resin molded product is laminated on a glass substrate, and the resin molded product comprises: Formed using a thermoplastic polymer composition comprising an acrylic block copolymer (A) or an acrylic block copolymer (A) and an acrylic resin (B) mainly composed of methacrylic ester units,
- the acrylic block copolymer (A) is a polymer mainly composed of methacrylate units at both ends of the polymer block (a1) mainly composed of acrylate units.
- An acrylic block copolymer having at least one structure in which the block (a2) is bonded in the molecule, and having a weight average molecular weight of 10,000 to 100,000.
- the glass is a plastic resin molded body, wherein the first interface on the glass substrate side of the thermoplastic resin molded body is irradiated with active energy, the first interface is surface-treated, and the silane coupling agent is used as a crosslinking agent.
- the first interface of the thermoplastic resin molded body is adhered to the second interface of the base material on the thermoplastic resin molded body side.
- the method for producing an optical element according to the present invention includes a glass substrate and a sheet-like molded body made of an organic resin having an optical functional pattern on one surface and the other surface bonded to the glass substrate.
- a method for producing an optical element wherein the sheet-like molded body comprises an acrylic block copolymer (A) or an acrylic block copolymer (A) and an acrylic resin mainly composed of methacrylic ester units ( B), and the thermoplastic polymer composition comprises a polymer block (A) in which the acrylic block copolymer (A) is mainly composed of acrylate ester units.
- thermoplastic resin molded body having a weight average molecular weight of 10,000 to 100,000, and irradiating active energy to the first interface on the glass substrate side of the thermoplastic resin molded body, Surface treatment is performed, and the first interface of the thermoplastic resin molded body is adhered to the second interface of the glass substrate on the thermoplastic resin molded body side using a silane coupling agent as a crosslinking agent.
- An optical element according to the present invention includes a glass substrate and a sheet-like molded body made of an organic resin having an optical functional pattern on one surface and the other surface bonded to the glass substrate.
- the said sheet-like molded object is a heat
- the thermoplastic polymer composition is formed using a plastic polymer composition, and the acrylic block copolymer (A) is formed at both ends of the polymer block (a1) mainly composed of an acrylate ester unit.
- thermoplastic resin molded body having a thickness of from 10,000 to 100,000.
- the first interface on the glass substrate side of the thermoplastic resin molded body is surface-treated by irradiation with active energy, and a silane coupling agent is used.
- a cross-linking agent As a cross-linking agent, the first interface of the thermoplastic resin molded body is bonded to a second interface of the glass base material on the thermoplastic resin molded body side.
- a concentrating solar power generation apparatus includes an optical element that condenses sunlight, and a concentrating solar element that includes a solar cell element that receives and photoelectrically converts sunlight collected by the optical element.
- the optical element is an optical element according to claim 15.
- ADVANTAGE OF THE INVENTION it becomes possible to adhere
- the concentrating solar power generation device of the present invention can be bonded with a stable and strong adhesive force over a long period of time without peeling between the bonding surfaces of the glass substrate and the sheet-like molded body even in a high temperature and high humidity environment.
- the generated optical element can stably maintain high power generation efficiency over a long period of time.
- FIG. 1 is a schematic cross-sectional view schematically showing a schematic configuration of a concentrating solar power generation apparatus including an optical element according to an embodiment of the present invention.
- a concentrating solar power generation device 1 includes a solar cell element (solar cell) 2 that photoelectrically converts received sunlight, and the solar cell element 2.
- a solar cell substrate 3 and an optical element 4 that is arranged so as to face the front side (sunlight incident side) of the solar cell element 2 and condense sunlight are provided as main constituent members.
- L ⁇ b> 1 indicates sunlight incident on the optical element 4
- L ⁇ b> 2 indicates sunlight condensed by the optical element 4.
- the optical element 4 includes a transparent glass substrate 5 provided on the sunlight incident side, and a light-transmitting thermoplastic layer bonded to the surface of the glass substrate 5 on the emission side (opposite the solar cell element 2). It is comprised with the sheet-like molded object 6 which consists of a united composition.
- a Fresnel lens pattern 6 a that condenses incident sunlight on the light receiving region of the solar cell element 2 is concentrically formed on the surface of the sheet-like molded body 6 opposite to the glass substrate 5 (side facing the solar cell element 2). It is formed in a shape.
- the sheet-like molded body 6 on which the Fresnel lens pattern 6a is formed functions as a condenser lens.
- the concentrating solar power generation device 1 has a plurality of solar cell elements 2 mounted on a solar cell substrate 3 (see FIG. 1) at regular intervals, and receives light from each solar cell element 2.
- a plurality of optical elements 4 are integrally provided on the same plane so as to face the regions.
- Each solar cell element 2 and each optical element 4 are accurately positioned and arranged, and the side surface periphery between the solar cell substrate 3 and the optical element 4 is between the solar cell substrate 3 and the optical element 4. It is sealed so that moisture (moisture), dust and the like do not enter the space between them. Note that the number and size of the solar cell elements 2 and the optical elements 4 that are opposed to each other are arbitrarily set depending on the size, installation location, and the like of the concentrating solar power generation device 1.
- the sheet-like molded body 6 in the present embodiment is excellent in transparency, weather resistance, flexibility, and the like, and is composed of a thermoplastic heavy resin containing the following acrylic block copolymer (A) and acrylic resin (B). It is formed using a coalescence composition.
- the acrylic block copolymer (A) is a heavy polymer mainly composed of methacrylic ester units at both ends of the polymer block (a1) composed mainly of acrylate units.
- An acrylic block copolymer (A2) having an amount of 10% by mass or more and less than 40% by mass;
- the acrylic resin (B) is mainly composed of methacrylate units;
- the mass ratio [(A) / (B)] of the acrylic block copolymer (A) and the acrylic resin (B) is 97/3 to 10/90.
- the polymer block (a2) mainly composed of methacrylic ester units was bonded to both terminals of the polymer block (a1) mainly composed of acrylate units.
- the acrylic resin (B) is an acrylic resin mainly composed of methacrylic acid ester units. From the viewpoint of improving the transparency, molding processability, etc. of the sheet-like molded article comprising the thermoplastic polymer composition, it is a methacrylic acid ester homopolymer or a copolymer mainly composed of a methacrylic acid ester unit. Is preferred.
- thermoplastic polymer composition in the present embodiment are described in International Publication No. 2010/055798.
- sheet-like molded object molded object before a Fresnel lens pattern is formed in the surface
- this thermoplastic polymer composition can be manufactured by the well-known T-die method, an inflation method, etc., for example.
- a method of forming the Fresnel lens pattern 6a on the surface of the sheet-like molded body 6 made of this thermoplastic polymer composition for example, a well-known press molding method, injection molding method, 2P (using ultraviolet curable resin) Photo (Polymerization) molding method.
- plasma active energy
- plasma is irradiated on the bonding surface (first interface) 6 b of the sheet-shaped molded body 6 with the glass substrate 5.
- surface treatment plasma treatment
- the adhesive surfaces 5a and 6b of the glass substrate 5 and the sheet-like molded body 6 that have been subjected to such a process are well-known by vacuum bonding (thermocompression bonding) or vacuum laminating. Glue by.
- the ester group of the acrylate ester on the surface of the adhesion surface is cut.
- a silane coupling agent having an amino group or an epoxy group terminal is interposed between the glass substrate 5 and the adhesive surfaces 5a and 6b of the sheet-like molded body 6 to obtain silane.
- the amino group, which is an organic functional group of the coupling agent, and the epoxy group are firmly bonded by forming an amide bond or ester bond which is a chemical bond, or by forming a hydrogen bond or a salt.
- silane coupling agent is not limited, a material showing good affinity with COOH group or OH group is preferable.
- silane coupling agents include 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane (KBM-303), 3-glycidoxypropylmethyldimethoxylane (KBM-402), 3- Glycidoxypropyltrimethoxysilane (KBE-402), 3-glycidoxypropyltriethoxysilane (KBE-403), N-2 (aminoethyl) -3-aminopropylmethyldimethoxysilane (KBM-602), N -2 (aminoethyl) -3-aminopropyltrimethoxysilane (KBM-603), 3-aminopropyltrimethoxysilane (KBM-903), 3-triethoxysilyl-N- (1,3-dimethyl-butylidene) Propylamine (KBE
- the bonding surfaces 5a and 6b of the glass substrate 5 and the sheet-shaped molded body 6 are firmly bonded to each other. Therefore, even in a high-temperature and high-humidity environment, the bonding surfaces 5a and 6b of the glass substrate 5 and the sheet-shaped molded body 6 are used. It is possible to obtain the optical element 4 that is stably bonded with a strong adhesive force over a long period of time without being separated.
- light collected by the optical element 4 can be favorably received by the light receiving region of the solar cell element 2 over a long period even in a severe natural environment such as a high-temperature and high-humidity environment. And good power generation efficiency can be maintained.
- the silane coupling agent may be applied to the adhesion surface on the plasma-treated sheet-like molded body 6 side.
- a liquid such as a solvent or water is buried between the adhesive surfaces so as not to include bubbles. Further, the remaining liquid may be adhered while being pushed out and discharged. In order to pass the liquid so as not to contain bubbles, the process is preferably performed under reduced pressure.
- the liquid to be used it is preferable to use a high-purity liquid so as not to leave a residue after discharging, and in the case of water, so-called pure water such as ion-exchanged water or distilled water is preferably used.
- the optical element 4 described above may be configured such that an ultraviolet absorber is included in the sheet-like molded body 6 and / or the glass substrate 5. With these configurations, the ultraviolet rays of sunlight incident on the optical element 4 are absorbed, so that coloring of the sheet-like molded body 6 and changes in physical properties due to the ultraviolet rays can be suppressed, and high power generation efficiency can be maintained over a long period of time.
- the glass substrate laminate is an optical element in which a sheet-like molded body 6 (condensing lens) having a Fresnel lens pattern 6a on the surface is bonded as a resin molded body on the glass substrate 5.
- the present invention can be similarly applied to a resin molded body other than the sheet-shaped molded body 6 having the Fresnel lens pattern 6a.
- Example 1 a sheet-like resin molded article having a thickness of 400 ⁇ m made of a mixture of a block copolymer of methyl methacrylate (MMA) and butyl acrylate (BA) and a methacrylic resin (the aforementioned Fresnel lens pattern was formed).
- plasma treatment was performed under the following conditions.
- a silane coupling agent (trade name: KBM-903) manufactured by Shin-Etsu Chemical Co., Ltd. was applied to the surface of the glass substrate facing the resin molded body with a thickness of about 40 nm. And the glass substrate laminated body (glass base material laminated body) of the structure which bonded together the resin molding to the transparent glass substrate of thickness 2mm at the temperature of 180 degreeC by vacuum pressure bonding (thermocompression bonding) was produced.
- the plasma treatment on the resin molded body was performed as follows.
- APG-500 type manufactured by Kasuga Electric Co., Ltd.
- irradiation was performed under the conditions of a supply air flow rate of 190 NL / min, a rated output power of 450 to 500 W, and an irradiation distance of 10 mm.
- the area irradiated with the atmospheric plasma was about 3 cm 2 , and the head was moved under the condition that the plasma was irradiated to the same place for about 1 second, and the entire resin molding was irradiated with the plasma.
- the peel adhesion strength (adhesive strength) of the produced glass substrate laminate was measured by the method of measuring the 180 degree peel adhesion strength specified in JISK685-2. As a result, the resin molded product did not peel from the glass substrate. The material was destroyed and adhered firmly.
- the resin molding is glass substrate The material was destroyed without being peeled off and adhered firmly.
- Table 1 shows that in Example 1 described above, the concentration when the silane coupling agent (trade name: KBM-903) was applied to the surface of the glass substrate (coating concentration) and the drying temperature after vacuum pressing were changed.
- 2 shows the evaluation results of the initial adhesion state and the adhesion state after being left for 2000 hours in an environment of high temperature and high humidity (temperature 65 ° C., humidity 85%).
- Example 2 In Example 2, the same conditions as in Example 1 except that the silane coupling agent used in Example 1 was changed to another silane coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd .; trade name: KBE-903). A glass substrate laminate was prepared.
- the peel adhesion strength of the produced glass substrate laminate was measured by a technique for measuring the 180 ° peel adhesion strength defined in JISK685-2.
- the resin molding did not peel from the glass substrate, but destroyed the material and adhered firmly.
- the resin molding is glass substrate The material was destroyed without being peeled off and adhered firmly.
- Example 3 the silane coupling agent of Example 1 was applied to the surface in contact with the glass substrate of the resin molded body instead of the glass substrate surface so as to have a thickness of 40 nm after adjusting a solution in which water was dispersed as a solvent, A glass substrate laminate was produced under the same conditions as in Example 1 except that hydrolysis was performed under conditions of a temperature of 40 degrees and a humidity of 95%.
- the peel adhesion strength of the produced glass substrate laminate was measured by a method of measuring the 180 ° peel adhesion strength defined in JISK685-2.
- the resin molding did not peel from the glass substrate, but destroyed the material and adhered firmly.
- the resin molding is glass substrate The material was destroyed without being peeled off and adhered firmly.
- Example 4 In Example 4, the same conditions as in Example 3 except that the silane coupling agent used in Example 3 was changed to another silane coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd .; trade name: KBE-903). A glass substrate laminate was prepared.
- the peel adhesion strength of the produced glass substrate laminate was measured by a technique for measuring the 180 ° peel adhesion strength defined in JISK685-2.
- the resin molding did not peel from the glass substrate, but destroyed the material and adhered firmly.
- the resin molding is glass substrate The material was destroyed without being peeled off and adhered firmly.
- Example 5 a glass substrate and a resin molded body treated as in Example 1 were used, and a glass substrate having a structure in which the glass substrate and the resin molded body were bonded together by lamination with a rubber roll via ion-exchanged water. A laminate was produced.
- the peel adhesion strength of the produced glass substrate laminate was measured by a technique for measuring the 180 ° peel adhesion strength defined in JISK685-2.
- the resin molding did not peel from the glass substrate, but destroyed the material and adhered firmly.
- the resin molding is glass substrate The material was destroyed without being peeled off and adhered firmly.
- Example 6 the glass substrate and the resin molded body treated as in Example 1 were used, and the glass having a configuration in which the glass substrate and the resin molded body were bonded together by lamination using a rubber roll via isopropyl alcohol. A substrate laminate was prepared.
- the peel adhesion strength of the produced glass substrate laminate was measured by a technique for measuring the 180 ° peel adhesion strength defined in JISK685-2.
- the resin molding did not peel from the glass substrate, but destroyed the material and adhered firmly.
- the resin molding is glass substrate The material was destroyed without being peeled off and adhered firmly.
- Example 7 In Example 7, the glass substrate and the resin molded body processed as in Example 1 were used, and the glass substrate having a structure in which the glass substrate and the resin molded body were bonded together by lamination using a rubber roll via toluene. A laminate was produced.
- the peel adhesion strength of the produced glass substrate laminate was measured by a technique for measuring the 180 ° peel adhesion strength defined in JISK685-2.
- the resin molding did not peel from the glass substrate, but destroyed the material and adhered firmly.
- the resin molding is glass substrate The material was destroyed without being peeled off and adhered firmly.
- Example 8 In Example 8, the glass substrate and the resin molded body treated as in Example 2 were used, and the glass substrate and the resin molded body were bonded together by lamination using a rubber roll via ion-exchanged water. A glass substrate laminate was produced.
- the peel adhesion strength of the produced glass substrate laminate was measured by a technique for measuring the 180 ° peel adhesion strength defined in JISK685-2.
- the resin molding did not peel from the glass substrate, but destroyed the material and adhered firmly.
- the resin molding is glass substrate The material was destroyed without being peeled off and adhered firmly.
- Example 9 In Example 9, the glass substrate and the resin molded body treated as in Example 2 were used, and the glass having a configuration in which the glass substrate and the resin molded body were bonded together by lamination using a rubber roll via isopropyl alcohol. A substrate laminate was prepared.
- the peel adhesion strength of the produced glass substrate laminate was measured by a technique for measuring the 180 ° peel adhesion strength defined in JISK685-2.
- the resin molding did not peel from the glass substrate, but destroyed the material and adhered firmly.
- the resin molding is glass substrate The material was destroyed without being peeled off and adhered firmly.
- Example 10 a glass substrate and a resin molded body treated as in Example 2 were used, and a glass substrate having a structure in which the glass substrate and the resin molded body were bonded together by lamination using a rubber roll via toluene. A laminate was produced.
- the peel adhesion strength of the produced glass substrate laminate was measured by a technique for measuring the 180 ° peel adhesion strength defined in JISK685-2.
- the resin molding did not peel from the glass substrate, but destroyed the material and adhered firmly.
- the resin molding is glass substrate The material was destroyed without being peeled off and adhered firmly.
- Example 11 In Example 11, using a normal pressure plasma surface treatment apparatus manufactured by Sekisui Chemical Co., Ltd., a distance between the irradiation head and the resin molded body was 3 mm, and an irradiation speed was 3 m / min. 1 part by weight of a silane coupling agent (trade name: KBE-903) manufactured by Shin-Etsu Chemical Co., Ltd. is used between the resin molded body and the glass substrate. A glass substrate laminate having a structure in which 1 part by weight of ultrapure water and 98 parts by weight of ethanol were mixed together by lamination with a rubber roll was prepared.
- a silane coupling agent trade name: KBE-903
- the peel adhesion strength of the produced glass substrate laminate was measured by a technique for measuring the 180 ° peel adhesion strength defined in JISK685-2.
- the resin molding did not peel from the glass substrate, but destroyed the material and adhered firmly.
- the resin molding is glass.
- the material was destroyed without peeling from the substrate, and it was firmly bonded.
- Example 12 In Example 12, using a normal pressure plasma surface treatment apparatus manufactured by Sekisui Chemical Co., Ltd., a distance between the irradiation head and the resin molded body was 3 mm, and an irradiation speed was 3 m / min. 1 part by weight of a silane coupling agent (trade name: KBE-903) manufactured by Shin-Etsu Chemical Co., Ltd. is used between the resin molded body and the glass substrate. Then, a glass substrate laminate having a configuration in which 3 parts by weight of ultrapure water and 96 parts by weight of ethanol were mixed together by lamination with a rubber roll was prepared.
- a silane coupling agent trade name: KBE-903
- the peel adhesion strength of the produced glass substrate laminate was measured by a technique for measuring the 180 ° peel adhesion strength defined in JISK685-2.
- the resin molding did not peel from the glass substrate, but destroyed the material and adhered firmly.
- the resin molding is glass.
- the material was destroyed without peeling from the substrate, and it was firmly bonded.
- Example 13 In Example 13, using a normal pressure plasma surface treatment apparatus manufactured by Sekisui Chemical Co., Ltd., the distance between the irradiation head and the resin molded body was 3 mm, the irradiation speed was 3 m / min, 1 part by weight of a silane coupling agent (trade name: KBE-903) manufactured by Shin-Etsu Chemical Co., Ltd. is used between the resin molded body and the glass substrate. And the glass substrate laminated body of the structure bonded together by the lamination by a rubber roll through the solution which mixed 99 weight part of ultrapure water was produced.
- a silane coupling agent trade name: KBE-903
- the peel adhesion strength of the produced glass substrate laminate was measured by a technique for measuring the 180 ° peel adhesion strength defined in JISK685-2.
- the resin molding did not peel from the glass substrate, but destroyed the material and adhered firmly.
- the resin molding is glass.
- the material was destroyed without peeling from the substrate, and it was firmly bonded.
- Comparative Example 1 a glass substrate laminate was produced in the same manner as in Example 1 except that a resin molded body that was not plasma-treated was used for the resin molded body of Example 1.
- the peel adhesion strength of the produced glass substrate laminate was measured by a technique for measuring the 180 ° peel adhesion strength defined in JISK685-2.
- the adhesive force at this time was 33.2 N / 25 mm, and the resin molded product was partially peeled from the glass substrate.
- Comparative example 2 a glass substrate laminate was produced by the same adhesion method as in Example 1 except that a resin molded body that was not plasma-treated was used for the resin molded body of Example 2.
- the peel adhesion strength of the produced glass substrate laminate was measured by a technique for measuring the 180 ° peel adhesion strength defined in JISK685-2.
- the adhesive force at this time was 48.9 N / 25 mm, and the resin molded body was materially broken without peeling off from the glass substrate, and was firmly bonded.
- Comparative Example 3 In Comparative Example 3, except that the glass substrate of Example 1 was not subjected to silane coupling treatment, this glass substrate and a plasma-treated resin molded product as in Example 1 were used, and the same adhesion method as in Example 1 was used. A glass substrate laminate was produced.
- the peel adhesion strength of the produced glass substrate laminate was measured by a technique for measuring the 180 ° peel adhesion strength defined in JISK685-2.
- the adhesive strength at this time was 38.3 N / 25 mm, and the resin molded body was materially broken without peeling off from the glass substrate, and was firmly bonded.
- adhesive force is 0.5N.
- the resin molding was easily peeled from the glass substrate.
- Comparative example 4 In Comparative Example 4, the glass substrate of Example 1 that was not subjected to silane coupling treatment and the resin molded body of Example 1 that was not subjected to plasma treatment were used. A laminate was produced.
- Comparative Example 5 is the same as Example 1 except that a 500 ⁇ m thick sheet-shaped resin molded body made of Kuraray Co., Ltd. (trade name: HI50) containing methyl methacrylate (MMA) and a rubber component is used. A glass substrate laminate was prepared by the adhesion method.
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Abstract
Description
図1に示すように、本実施形態に係る集光型太陽光発電装置1は、受光した太陽光を光電変換する太陽電池素子(太陽電池セル)2と、該太陽電池素子2が実装された太陽電池基板3と、太陽電池素子2の前方側(太陽光入射側)に対向するようにして配置され、太陽光を集光する光学素子4とを主要構成部材として備えている。なお、図1において、L1は光学素子4に入射する太陽光、L2は光学素子4で集光された太陽光を示している。
本実施形態におけるシート状成形体6は、透明性、耐候性、柔軟性等に優れている、以下のようなアクリル系ブロック共重合体(A)とアクリル樹脂(B)とを含む熱可塑性重合体組成物を用いて形成されている。
前記アクリル系ブロック共重合体(A)が、重合体ブロック(a2)の含有量が40質量%以上80質量%以下であるアクリル系ブロック共重合体(A1)と重合体ブロック(a2)の含有量が10質量%以上40質量%未満であるアクリル系ブロック共重合体(A2)を含み;
前記アクリル樹脂(B)が、主としてメタクリル酸エステル単位から構成され;
アクリル系ブロック共重合体(A)とアクリル樹脂(B)との質量比〔(A)/(B)〕が97/3~10/90である。
実施例1では、メタアクリル酸メチル(MMA)とアクリル酸ブチル(BA)のブロック共重合体とメタアクリル樹脂の混合物からなる厚み400μmのシート状の樹脂成形体(前記したフレネルレンズパターンが形成される前のシート状成形体に相当)に、密着性を高めるために下記の条件でプラズマ処理を行った。
実施例2では、実施例1で用いたシランカップリング剤を別のシランカップリング剤(信越化学工業株式会社製;商品名:KBE-903)に変更した以外は、実施例1と同様の条件でガラス基材積層体を作製した。
実施例3では、実施例1のシランカップリング剤をガラス基板面ではなく樹脂成形体のガラス基板と接する表面に、水を溶媒として分散した溶液を調整後に厚さ40nmとなるように塗布し、温度40度、湿度95%の条件下で加水分解した以外は、実施例1と同様の条件でガラス基板積層体を作製した。
実施例4では、実施例3で用いたシランカップリング剤を別のシランカップリング剤(信越化学工業株式会社製;商品名:KBE-903)に変更した以外は、実施例3と同様の条件でガラス基板積層体を作製した。
実施例5では、実施例1のように処理されたガラス基板と樹脂成形体を用い、このガラス基板と樹脂成形体の間にイオン交換水を介してゴムロールによるラミネートにより貼り合わせた構成のガラス基板積層体を作製した。
実施例6では、実施例1のように処理されたガラス基板と樹脂成形体を用い、このガラス基板と樹脂成形体の間にイソプロピルアルコールを介してゴムロールを用いたラミネートにより貼り合わせた構成のガラス基板積層体を作製した。
実施例7では、実施例1のように処理されたガラス基板と樹脂成形体を用い、このガラス基板と樹脂成形体の間にトルエンを介してゴムロールを用いたラミネートにより貼り合わせた構成のガラス基板積層体を作製した。
実施例8では、実施例2のように処理されたガラス基板と樹脂成形体を用い、このガラス基板と樹脂成形体の間にイオン交換水を介してゴムロールを用いたラミネートにより貼り合わせた構成のガラス基板積層体を作製した。
実施例9では、実施例2のように処理されたガラス基板と樹脂成形体を用い、このガラス基板と樹脂成形体の間にイソプロピルアルコールを介してゴムロールを用いたラミネートにより貼り合わせた構成のガラス基板積層体を作製した。
実施例10では、実施例2のように処理されたガラス基板と樹脂成形体を用い、このガラス基板と樹脂成形体の間にトルエンを介してゴムロールを用いたラミネートにより貼り合わせた構成のガラス基板積層体を作製した。
実施例11では、積水化学工業株式会社製の常圧プラズマ表面処理装置を用い、照射ヘッドと樹脂成形体の距離を3mm、照射速度を3m/分で貼り合わせ面を処理された樹脂成形体と、表面にシランカップリング剤を塗布していないガラスを用い、この樹脂成形体とガラス基板の間に、信越化学工業株式会社製のシランカップリング剤(商品名:KBE-903)を1重量部、超純水を1重量部、エタノールを98重量部を混合した溶液を介してゴムロールによるラミネートにより貼り合せた構成のガラス基板積層体を作製した。
実施例12では、積水化学工業株式会社製の常圧プラズマ表面処理装置を用い、照射ヘッドと樹脂成形体の距離を3mm、照射速度を3m/分で貼り合わせ面を処理された樹脂成形体と、表面にシランカップリング剤を塗布していないガラスを用い、この樹脂成形体とガラス基板の間に、信越化学工業株式会社製のシランカップリング剤(商品名:KBE-903)を1重量部、超純水を3重量部、エタノールを96重量部を混合した溶液を介してゴムロールによるラミネートにより貼り合せた構成のガラス基板積層体を作製した。
実施例13では、積水化学工業株式会社製の常圧プラズマ表面処理装置を用い、照射ヘッドと樹脂成形体の距離を3mm、照射速度を3m/分で貼り合わせ面を処理された樹脂成形体と、表面にシランカップリング剤を塗布していないガラスを用い、この樹脂成形体とガラス基板の間に、信越化学工業株式会社製のシランカップリング剤(商品名:KBE-903)を1重量部、超純水を99重量部を混合した溶液を介してゴムロールによるラミネートにより貼り合せた構成のガラス基板積層体を作製した。
比較例1では、実施例1の樹脂成形体に対してプラズマ処理しない樹脂成形体を用いる以外は、実施例1と同様にしてガラス基板積層体を作製した。
比較例2では、実施例2の樹脂成形体に対してプラズマ処理しない樹脂成形体を用いる以外は、実施例1と同様の接着方法でガラス基板積層体を作製した。
比較例3では、実施例1のガラス基板に対してシランカップリング処理しない以外は、このガラス基板と実施例1のようなプラズマ処理した樹脂成形体を用い、実施例1と同様の接着方法でガラス基板積層体を作製した。
比較例4では、シランカップリング処理していない実施例1のガラス基板と、プラズマ処理していない実施例1の樹脂成形体を用い、それ以外は、実施例1と同様の接着方法でガラス基板積層体を作製した。
比較例5では、メタアクリル酸メチル(MMA)とゴム成分を含む株式会社クラレ製のコモグラス(商品名:HI50)からなる厚み500μmのシート状の樹脂成形体を用いる以外は、実施例1と同様の接着方法でガラス基板積層体を作製した。
2 太陽電池素子
3 太陽電池基板
4 光学素子
5 ガラス基板(ガラス基材)
5a 接着面
6 シート状成形体
6a フレネルレンズパターン
6b 接着面
Claims (16)
- ガラス基材上に樹脂成形体を積層したガラス基材積層体の製造方法であって、
前記樹脂成形体は、アクリル系ブロック共重合体(A)又はアクリル系ブロック共重合体(A)と、主としてメタクリル酸エステル単位から構成されるアクリル樹脂(B)とを含む熱可塑性重合体組成物を用いて形成され、前記熱可塑性重合体組成物は、前記アクリル系ブロック共重合体(A)が、アクリル酸エステル単位を主体とする重合体ブロック(a1)の両末端にそれぞれメタクリル酸エステル単位を主体とする重合体ブロック(a2)が結合した構造を分子内に少なくとも1つ有するアクリル系ブロック共重合体であり、重量平均分子量が10,000~100,000である熱可塑性樹脂成形体であり、
前記熱可塑性樹脂成形体のガラス基材側の第1界面に活性エネルギーを照射して、前記第1界面を表面処理し、
シランカップリング剤を架橋剤として、前記ガラス基材の熱可塑性樹脂成形体側の第2界面に前記熱可塑性樹脂成形体の前記第1界面を接着させることを特徴とするガラス基材積層体の製造方法。 - 前記シランカップリング剤によって、接着前に前記ガラス基材の前記第2界面がシランカップリング処理され、
前記ガラス基材の前記第2界面と前記熱可塑性樹脂成形体の前記第1界面を、熱圧着することで接着させることを特徴とする請求項1に記載のガラス基材積層体の製造方法。 - 前記シランカップリング剤によって、接着前に前記ガラス基材の前記第2界面がシランカップリング処理され、
前記ガラス基材の前記第2界面と前記熱可塑性樹脂成形体の前記第1界面を、液体により空隙を埋め、かつ液体を排出しつつラミネートすることで接着させることを特徴とする請求項1に記載のガラス基材積層体の製造方法。 - 前記ガラス基材の前記第2界面と前記熱可塑性樹脂成形体の前記第1界面を、前記シランカップリング剤を含有した液体により空隙を埋め、かつ液体を排出しつつラミネートすることで接着させることを特徴とする請求項1に記載のガラス基材積層体の製造方法。
- 前記熱可塑性樹脂成形体の前記第1界面に、前記シランカップリング剤が内包されており、
前記ガラス基材の前記第2界面と前記熱可塑性樹脂成形体の前記第1界面を、液体により空隙を埋め、かつ液体を排出しつつラミネートすることで接着させることを特徴とする請求項1に記載のガラス基材積層体の製造方法。 - ガラス基材と、一方の面に光学機能パターンを有し他方の面が前記ガラス基材上に接着された有機性樹脂からなるシート状成形体を備えた光学素子の製造方法であって、
前記シート状成形体は、アクリル系ブロック共重合体(A)又はアクリル系ブロック共重合体(A)と、主としてメタクリル酸エステル単位から構成されるアクリル樹脂(B)とを含む熱可塑性重合体組成物を用いて形成され、前記熱可塑性重合体組成物は、前記アクリル系ブロック共重合体(A)が、アクリル酸エステル単位を主体とする重合体ブロック(a1)の両末端にそれぞれメタクリル酸エステル単位を主体とする重合体ブロック(a2)が結合した構造を分子内に少なくとも1つ有するアクリル系ブロック共重合体であり、重量平均分子量が10,000~100,000である熱可塑性樹脂成形体であり、
前記熱可塑性樹脂成形体のガラス基材側の第1界面に活性エネルギーを照射して、前記第1界面を表面処理し、
シランカップリング剤を架橋剤として、前記ガラス基材の熱可塑性樹脂成形体側の第2界面に前記熱可塑性樹脂成形体の前記第1界面を接着させることを特徴とする光学素子の製造方法。 - 前記シランカップリング剤によって、接着前に前記ガラス基材の前記第2界面がシランカップリング処理され、
前記ガラス基材の前記第2界面と前記熱可塑性樹脂成形体の前記第1界面を、熱圧着することで接着させることを特徴とする請求項6に記載の光学素子の製造方法。 - 前記シランカップリング剤によって、接着前に前記ガラス基材の前記第2界面がシランカップリング処理され、
前記ガラス基材の前記第2界面と前記熱可塑性樹脂成形体の前記第1界面を、液体により空隙を埋め、かつ液体を排出しつつラミネートすることで接着させることを特徴とする請求項6に記載の光学素子の製造方法。 - 前記ガラス基材の前記第2界面と前記熱可塑性樹脂成形体の前記第1界面を、前記シランカップリング剤を含有した液体により空隙を埋め、かつ液体を排出しつつラミネートすることで接着させることを特徴とする請求項6に記載の光学素子の製造方法。
- 前記熱可塑性樹脂成形体の前記第1界面に、前記シランカップリング剤が内包されており、
前記ガラス基材の前記第2界面と前記熱可塑性樹脂成形体の前記第1界面を、液体により空隙を埋め、かつ液体を排出しつつラミネートすることで接着させることを特徴とする請求項6に記載の光学素子の製造方法。 - ガラス基材と、一方の面に光学機能パターンを有し他方の面が前記ガラス基材上に接着された有機性樹脂からなるシート状成形体を備えた光学素子であって、
前記シート状成形体は、アクリル系ブロック共重合体(A)又はアクリル系ブロック共重合体(A)と、主としてメタクリル酸エステル単位から構成されるアクリル樹脂(B)とを含む熱可塑性重合体組成物を用いて形成され、前記熱可塑性重合体組成物は、前記アクリル系ブロック共重合体(A)が、アクリル酸エステル単位を主体とする重合体ブロック(a1)の両末端にそれぞれメタクリル酸エステル単位を主体とする重合体ブロック(a2)が結合した構造を分子内に少なくとも1つ有するアクリル系ブロック共重合体であり、重量平均分子量が10,000~100,000である熱可塑性樹脂成形体であり、
前記熱可塑性樹脂成形体のガラス基材側の第1界面は、活性エネルギーの照射で表面処理されており、
シランカップリング剤を架橋剤として、前記ガラス基材の熱可塑性樹脂成形体側の第2界面に前記熱可塑性樹脂成形体の前記第1界面が接着されていることを特徴とする光学素子。 - 前記熱可塑性樹脂成形体は、組成の異なる2種類の樹脂層からなり、前記ガラス基材に近接した側の樹脂層の弾性率が他方の樹脂層よりも低いことを特徴とする請求項11に記載の光学素子。
- 前記ガラス基材の中に紫外線吸収剤を含んでいることを特徴とする請求項11又は12に記載の光学素子。
- 前記熱可塑性樹脂成形体の中に紫外線吸収剤を含んでいることを特徴とする請求項11又は12に記載の光学素子。
- 前記シート状成形体に形成された前記光学機能パターンは、フレネルレンズパターンであることを特徴とする請求項11乃至14のいずれか一項に記載の光学素子。
- 太陽光を集光する光学素子と、前記光学素子により集光された太陽光を受光して光電変換する太陽電池素子を備えた集光型太陽光発電装置において、
前記光学素子は、請求項15に記載の光学素子であることを特徴とする集光型太陽光発電装置。
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JP2022081622A (ja) * | 2017-09-11 | 2022-05-31 | 東洋製罐グループホールディングス株式会社 | 透明基板、薄膜支持基板 |
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WO2021042388A1 (en) | 2019-09-06 | 2021-03-11 | Schott Glass Technologies (Suzhou) Co. Ltd. | Micro-optical element having high bonding strength between glass substrate and micro-structure layer |
KR102384799B1 (ko) | 2021-12-30 | 2022-04-08 | (주)옥토끼이미징 | 태양광패널 보호용 유리 및 이를 이용한 태양광 패널 |
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