WO2012066794A1 - 複層シートおよびエンドレスベルト - Google Patents

複層シートおよびエンドレスベルト Download PDF

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Publication number
WO2012066794A1
WO2012066794A1 PCT/JP2011/053883 JP2011053883W WO2012066794A1 WO 2012066794 A1 WO2012066794 A1 WO 2012066794A1 JP 2011053883 W JP2011053883 W JP 2011053883W WO 2012066794 A1 WO2012066794 A1 WO 2012066794A1
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WO
WIPO (PCT)
Prior art keywords
sheet
hot plate
laminating apparatus
multilayer
laminating
Prior art date
Application number
PCT/JP2011/053883
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
淳 油布
篠田　隆志
活之 榊原
靖史 高木
克也 本多
広明 安野
Original Assignee
日清紡メカトロニクス株式会社
本多産業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日清紡メカトロニクス株式会社, 本多産業株式会社 filed Critical 日清紡メカトロニクス株式会社
Priority to KR1020137014164A priority Critical patent/KR20140027064A/ko
Priority to CN201180065445.2A priority patent/CN103370194B/zh
Publication of WO2012066794A1 publication Critical patent/WO2012066794A1/ja

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    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/16—Layered products comprising a layer of synthetic resin specially treated, e.g. irradiated
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/281—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyimides
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
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    • F16G1/14—Driving-belts made of plastics
    • F16G1/16—Driving-belts made of plastics with reinforcement bonded by the plastic material
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    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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    • B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7861—In-line machines, i.e. feeding, joining and discharging are in one production line
    • B29C65/787—In-line machines, i.e. feeding, joining and discharging are in one production line using conveyor belts or conveyor chains
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
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    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance
    • 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
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08—Dimensions, e.g. volume
    • B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105—Thickness
    • 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
    • B32B2433/00—Closed loop articles
    • B32B2433/02—Conveyor belts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the present invention relates to a multilayer sheet, an endless belt, and a method for producing the same. More specifically, the present invention relates to a multilayer sheet excellent in heat resistance, non-adhesiveness and abrasion resistance, and grip, which can be used for industrial use, an endless belt comprising the multilayer sheet, and a method for producing the same. It is.
  • the present invention also relates to a protective sheet and a protective sheet comprising a multilayered sheet according to the present invention as a hot plate protective sheet (hereinafter also referred to simply as “protective sheet”) used in a laminating apparatus for manufacturing a solar cell module.
  • the present invention relates to a laminating apparatus in which the sheet and the protective sheet and the conveying sheet are incorporated.
  • heat-resistant composite sheets are known in which a heat-resistant fiber woven fabric excellent in heat resistance and tensile strength is combined with a heat-resistant resin excellent in heat resistance and non-adhesiveness. They are used as related heat-resistant non-adhesive sheets and heat-resistant non-adhesive transport belts.
  • a heat resistant fiber woven fabric used for the heat resistant composite sheet for example, a woven fabric in which glass fiber, aramid fiber or the like is plain woven or twill woven is used.
  • fluororesins such as polytetrafluoroethylene resin (PTFE), are used, for example.
  • fluororesin is excellent in heat resistance, cold resistance, non-adhesiveness, chemical resistance, combustion resistance, weather resistance, electrical insulation, low friction, etc., but poor in wear resistance.
  • heat-resistant materials that are superior to fluororesins in abrasion resistance, inferior in low friction, excellent in grip properties, and difficult to slip include polyimide resins.
  • a method for producing a sheet having improved wear resistance for example, a heat-resistant fiber woven fabric is impregnated and adhered to a mixed solution in which a polyimide resin is dispersed in an aqueous fluororesin suspension, dried, and then fired.
  • Patent Document 1 Japanese Patent Laid-Open No. 2006-21403 (Patent Document 1) has been proposed.
  • the sheet described in Patent Document 1 is a mixed material of a polyimide resin and a fluororesin, both performances are averaged, and it is possible to obtain the original excellent wear resistance of the polyimide resin. It seems difficult.
  • the inner surface of the belt which is the contact surface with the drive roll, has an appropriate grip and wear resistance.
  • it is a mixed material of polyimide resin and fluororesin. So it seems difficult to achieve both.
  • Tubular endless belts that form a layer of polyimide resin and fluororesin that is not a mixture of polyimide resin and fluororesin (Japanese Patent Laid-Open No. 7-110632 (Patent Document 2), Japanese Patent Laid-Open No. 7-178741 (Patent Document) 3) and JP-A-2002-178422 (Patent Document 4) have also been proposed.
  • the manufacturing method is molding with a cylindrical mold, and the equipment cost seems to increase in order to cope with various dimensions.
  • a laminating apparatus used for sealing a solar cell module is generally divided into a lower chamber and a lower chamber partitioned by a pressing member such as a diaphragm during laminating.
  • the lower chamber is provided with a hot plate for heating a workpiece such as a solar cell module, and a transfer sheet for transferring the workpiece from the laminating apparatus onto the hot plate.
  • the upper chamber includes a pressing member such as a diaphragm for pressing the workpiece. Since the conveyance sheet travels with the work piece mounted thereon, friction is generated between the conveyance sheet and the conveyance sheet, and thus the conveyance sheet is susceptible to damage such as scratches and tears. Further, the contact surface of the hot plate with the conveying sheet is also worn by friction with the conveying sheet. Therefore, it is common to protect the transport sheet by providing a protective sheet (the above-described hot plate protective sheet) on the hot plate.
  • a first object of the present invention is to provide a multilayer sheet capable of producing endless belts of various dimensions without using a mold, and an endless belt comprising the multilayer sheet, and a method for producing the same, by cutting and making it endless.
  • the protective sheet and transport sheet used in the laminating apparatus for manufacturing the solar cell module have the following problems.
  • a third object is to provide a laminating apparatus using the protective sheet and the conveying sheet.
  • the multilayer sheet which is the first invention for achieving the above object is a multilayer sheet having at least one composite material layer made of a fluororesin and a heat-resistant fiber woven fabric and a surface layer made of a polyimide resin. And the said surface layer is formed through the process surface formed by the surface activation process made
  • the multilayer sheet of the second invention includes the multilayer sheet according to the first invention, wherein the surface activation treatment is silica particle adhesion firing treatment, metal sodium etching treatment, plasma discharge treatment or corona discharge treatment.
  • the endless belt of the third invention is characterized in that, in the first invention, the endless belt is composed of an annular body of a belt-like material formed from the multilayer sheet.
  • the production method of the endless belt of the fourth invention is to cut the multilayer sheet of the first invention into a belt shape, and join the two opposite ends of the belt-like object of this multilayer sheet to obtain an annular body, It is characterized by.
  • an endless belt manufacturing method comprising: a belt-like material in which the multilayer sheet of the first invention and another sheet are laminated; two opposite end portions of the belt-like material with respect to the multilayer sheet; Two opposite ends of the other sheet of the belt-like material are joined or arranged close to each other to obtain an annular body.
  • a hot plate protective sheet for a laminating apparatus is characterized by comprising the multilayer sheet of the first aspect or the second aspect.
  • the hot plate protection sheet for a laminating apparatus of the seventh invention is characterized in that, in the sixth invention, after laminating, there is no adhesion to the conveying sheet of the laminating apparatus.
  • a hot plate protection sheet for a laminating apparatus according to an eighth invention is characterized in that, in the sixth invention or the seventh invention, the surface layer made of the polyimide resin is provided on the surface in contact with the transport sheet.
  • a conveying sheet for a laminating apparatus is characterized by comprising the multilayer sheet according to the first aspect or the second aspect.
  • the conveying sheet for a laminating apparatus is characterized in that, in the ninth aspect, after laminating, there is no adhesion to the hot plate protection sheet of the laminating apparatus.
  • the transport sheet according to an eleventh invention is characterized by having a surface layer made of the polyimide resin on the surface in contact with the hot plate protection sheet.
  • a laminating apparatus according to a twelfth aspect is characterized by using the hot plate protection sheet according to any of the sixth to eighth aspects.
  • a laminating apparatus according to a thirteenth aspect of the present invention is characterized in that the conveyance sheet according to any of the ninth to eleventh aspects of the invention is used.
  • seat which has the outstanding heat resistance, non-adhesiveness and abrasion resistance, and grip property can be obtained. Since this multilayer sheet has a polyimide resin as its surface layer, it is possible to obtain non-adhesiveness, wear resistance, grip properties and the like suitable for the desired use and required performance. And according to the present invention, this multilayer sheet or a laminate of other sheets is formed so that an endless belt having a desired width and length can be formed as it is or after laminating other sheets. Since an endless belt can be obtained by cutting the belt into a belt shape, an endless belt having a desired width, length, and layer configuration according to the application can be easily manufactured.
  • each layer having a desired width and length Prior to lamination, each layer having a desired width and length is prepared, and after these are laminated, an endless belt can be manufactured.
  • a wide endless belt is once formed without cutting the same multilayer sheet, and then the wide endless belt is cut to a desired width.
  • a plurality of products can be manufactured at the same time. It is also easy to make different endless belts with different widths by adjusting the width when cutting the wide endless belt.
  • the formation of the surface layer of the multilayer sheet can be carried out by applying a polyimide resin, the surface layer is obtained in comparison with the case where the surface layer portion is obtained in the form of a sheet in advance and laminated with an adhesive or the like.
  • the multilayer sheet of the present invention for a hot plate protective sheet and a conveying sheet of a laminating apparatus. Since there is no adhesion between the transport sheet and the hot plate protection sheet during the laminating process, the hot plate protection sheet is not damaged even if the work sheet is run with the workpiece mounted after laminating. Adhesion between the hot plate protection sheet and the transport sheet can be eliminated, and the wear resistance of the hot plate protection sheet and the transport sheet can be further improved.
  • the hot plate protection sheet and the transport sheet for the laminating apparatus have good thermal conductivity, can increase the temperature rising rate, and can improve the production efficiency of the laminating process.
  • the laminating apparatus of the present invention since there is no adhesion between the transport sheet and the hot plate protection sheet during lamination processing, after laminating, the workpiece is mounted and the transport sheet travels on the hot plate protection sheet.
  • the heat plate protection sheet and the transport sheet are not damaged or broken, and both sheets can be made thin, so that the thermal conductivity is improved.
  • This makes it possible to increase the rate of temperature increase of the workpiece during laminating, and improve the production efficiency of laminating.
  • the defective lamination process of the solar cell module caused by the insufficient temperature increase of the lamination process is reduced, and the product yield is improved.
  • FIG. 1 is a cross-sectional view showing the structure of a multilayer sheet according to the present invention.
  • FIG. 2 is a cross-sectional view showing the structure of the multilayer sheet according to the present invention.
  • FIG. 3 is a sectional view showing the structure of the endless belt according to the present invention.
  • FIG. 4 is a cross-sectional view showing the structure of the endless belt according to the present invention.
  • FIG. 5 is a schematic view of a laminating apparatus for manufacturing a solar cell module.
  • FIG. 6 is a side sectional view of the laminating portion of the laminating apparatus.
  • FIG. 7 is a side cross-sectional view of the laminating portion at the time of laminating by the laminating apparatus.
  • FIG. 1 is a cross-sectional view showing the structure of a multilayer sheet according to the present invention.
  • FIG. 2 is a cross-sectional view showing the structure of the multilayer sheet according to the present invention.
  • FIG. 3 is a sectional view showing
  • FIG. 8 is an explanatory diagram of a conventional hot plate protection sheet and conveyance sheet.
  • FIG. 9 is an explanatory diagram of the hot plate protection sheet and the conveyance sheet of the present invention.
  • FIG. 10 is an explanatory diagram of the hot plate protection sheet of the present invention.
  • FIG. 11 is a schematic view of a hot press machine for evaluating the adhesion and heat transfer of the hot plate protection sheet of the present invention.
  • FIG. 12 is an explanatory diagram of heat transfer characteristics of the hot plate protection sheet of the present invention.
  • FIG. 13 is a cross-sectional view of a workpiece.
  • the multilayer sheet according to the present invention is a multilayer sheet having at least one composite material layer composed of a fluororesin and a heat-resistant fiber woven fabric and a surface layer composed of a polyimide resin, wherein the surface layer is composed of the composite sheet. It is characterized by being formed through a treated surface formed by a surface activation treatment performed on the material layer.
  • Preferable specific examples of the multilayer sheet according to the present invention include those described in FIGS.
  • a multilayer sheet 10 according to the present invention shown in FIG. 1 is a multilayer sheet having a single composite layer 2 composed of a fluororesin 2a and a heat-resistant fiber woven fabric 2b and a surface layer 3a composed of a polyimide resin.
  • the surface layer 3a is formed through a treated surface 4 formed by a surface activation treatment performed on the composite material layer 2.
  • the multilayer sheet 11 according to the present invention shown in FIG. 2 has a surface layer made of a polyimide resin on both sides of the multilayer sheet, and is a single layer made of a fluororesin 2a and a heat resistant fiber woven fabric 2b.
  • the composite material layer in the multilayer sheet according to the present invention comprises a fluororesin and a heat resistant fiber woven fabric.
  • the fluororesin in the present invention is not limited, but is polytetrafluoroethylene (PTFE), tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA), tetrafluoroethylene-hexafluoropropylene copolymer (FEP). And a heat resistant resin selected from the group consisting of: Of these, polytetrafluoroethylene is particularly preferred.
  • the fluororesin can be mixed with conductive powder as necessary. As a result, it is possible to impart or improve conductivity and improve wear resistance.
  • Preferable specific examples of the conductive powder include carbon black and titanium oxide.
  • the blending amount is preferably 1 to 20 parts by mass with respect to the fluororesin.
  • the heat-resistant fiber woven fabric includes, but is not limited to, glass fiber and aramid fiber.
  • the thickness of the heat resistant fiber woven fabric is generally 30 to 1000 ⁇ m, particularly preferably 30 to 700 ⁇ m.
  • Such a composite material layer can be preferably formed, for example, by impregnating the heat-resistant fiber woven fabric with the aqueous suspension of the fluororesin particles, drying, and firing.
  • the solvent for preparing the aqueous suspension for example, water, particularly pure water is preferable.
  • the amount of the fluororesin particles in the aqueous suspension is preferably 20 to 60 parts by mass, particularly preferably 30 to 60 parts by mass with respect to 100 parts by mass of the solvent.
  • the fluororesin sufficiently penetrates into the inside of the heat resistant fiber woven fabric, and the surface of the heat resistant fiber woven fabric is covered with the fluororesin. Therefore, the application amount of the fluororesin is preferably 30 to 70 parts by mass, particularly 40 to 60 parts by mass, where the total amount of the heat resistant fiber woven fabric and the fluororesin is 100 parts by mass.
  • the multilayer sheet according to the present invention has a surface layer made of a polyimide resin.
  • the polyimide resin is not limited. For example, polyimide and polyamideimide are preferable, and polyimide is particularly preferable.
  • a liquid polyimide varnish can be used to facilitate the coating, and a solvent can be blended if necessary.
  • viscosity can be reduced and coating property can be improved.
  • electroconductive powder can be mix
  • the surface layer can be formed by applying the polyimide resin to the surface activation-treated surface of the composite material layer, drying it, and firing it.
  • the firing temperature of the polyimide resin is preferably 300 to 400 ° C, particularly preferably 330 to 370 ° C.
  • the thickness of the surface layer can be appropriately determined depending on the specific use and purpose of the multilayer sheet and endless belt according to the present invention. For example, if it shows about the multilayer sheet for endless belt manufacture especially suitable for a conveyance use, 1-50 micrometers is preferable and, as for the thickness of a polyimide resin surface layer, 5-20 micrometers is especially preferable.
  • ⁇ Surface activation treatment> In the multilayer sheet according to the present invention, the surface layer is formed via a treated surface formed by a surface activation treatment performed on the composite material layer.
  • the surface activation treatment means that the surface tension of the composite material layer is reduced by treating the fluororesin on the surface of the composite material layer according to the present invention to reduce the surface tension.
  • the preferable surface activation treatment in the present invention include silica particle adhesion firing treatment, metal sodium etching surface treatment, plasma discharge treatment, and corona discharge treatment. Among these, silica particle adhesion firing treatment is particularly preferable.
  • the detail of the surface activation process in this invention is shown below.
  • Silica particle adhesion firing treatment After applying a mixed aqueous suspension of silica particles and fluororesin particles to a composite material composed of fluororesin and heat-resistant fiber woven fabric, the surface of the composite material is made hydrophilic by firing treatment. Improve the processing.
  • Metal sodium etching surface treatment Treatment to improve the hydrophilicity of the composite material surface by applying a metal sodium solution to the composite material made of fluororesin and heat-resistant fiber woven fabric.
  • Plasma discharge treatment Treatment for improving the hydrophilicity of the composite material surface by performing glow discharge treatment on the surface of the composite material made of fluororesin and heat-resistant fiber woven fabric.
  • Corona discharge treatment A treatment for improving the hydrophilicity of the surface of the composite material by applying a corona discharge treatment to the surface of the composite material made of a fluororesin and a heat-resistant fiber woven fabric.
  • the surface activation treatment is preferably performed on the entire surface of the composite material layer where the surface layer is formed, but it is performed on a portion of the composite material layer where the surface layer is formed. You can also By performing such surface activation treatment, the contact angle (JIS K6768) when pure water is dropped on the fluororesin surface of the composite layer surface is significantly reduced.
  • the contact angle which was about 106 ° before the surface activation treatment, is 80 to 90 ° by the silica particle adhesion firing treatment, 50 to 60 ° by the metal sodium etching surface treatment, and 50 to 60 ° by the plasma discharge treatment.
  • the endless belt according to the present invention is characterized by comprising an annular body of a belt-like material formed from the above multilayer sheet. Therefore, the endless belt according to the present invention has excellent characteristics of the multilayer sheet, for example, excellent heat resistance, shape stability, non-adhesiveness and durability based on a composite material layer mainly composed of a fluororesin and a heat-resistant fiber woven fabric.
  • the method for producing an endless belt according to the present invention is characterized in that the multilayer sheet is cut into a belt shape, and two opposite ends of the belt-like object of the multilayer sheet are joined to obtain an annular body. And in addition, this annular body is formed by, for example, (b) overlapping and joining the other end to the peripheral region of one end of the belt-like material of the multilayer sheet (FIG. 3A), ) By firmly joining the two end portions of the belt-like material of the multilayer sheet at the end section (FIG.
  • another endless belt manufacturing method includes a belt-like material in which the multilayer sheet and another sheet are laminated, and two opposite ends of the belt-like material with respect to the multilayer sheet. And the two opposite ends of the belt and the other sheet of the belt-like material are joined or arranged close to each other to obtain an annular body.
  • seat which consists of a single layer or a some layer can be mentioned.
  • FIG. 4 shows a preferred embodiment of such an endless belt according to the present invention.
  • the endless belt 12 according to the present invention shown in FIG. 4 has the multilayer sheet 10 shown in FIG. 1 on the outer peripheral side and the other sheet 5 on the inner peripheral side. A sheet having the same contents as the composite material layer 2 is used.
  • two opposing ends of the multilayer sheet 10 and two opposing ends of the belt-like material with respect to the other sheet 5 are positioned at positions 6 and 7, respectively.
  • An endless belt is obtained by joining or closely arranging to obtain an annular body.
  • the endless belt according to the present invention includes a multilayer sheet 10 shown in FIG. 1 on the inner peripheral side and another sheet 5 on the outer peripheral side as a preferable specific example.
  • an endless belt having a desired width, length, and layer configuration can be easily obtained, unlike a method of manufacturing an endless belt using a seamless tubular product manufactured by a conventional mold or the like. Can be manufactured.
  • a wide endless belt is once formed without cutting the same multilayer sheet, and then the wide endless belt is cut to a desired width.
  • a plurality of products can be manufactured at the same time. It is also easy to make different endless belts with different widths by adjusting the width when cutting the wide endless belt.
  • the laminated sheet of the multilayer sheet and the other sheet according to the present invention is preferably obtained by heat-sealing the multilayer sheet and the other sheet, but the multilayer sheet and the other sheet are bonded with an adhesive. To obtain a laminated sheet.
  • Example 1 A multilayer sheet in which a polyimide resin surface layer is formed on one side of a composite material.
  • the thickness of the plain weave glass fiber cloth (95 ⁇ m) is measured with a continuous coating device.
  • An aqueous suspension of PTFE) was impregnated and adhered, dried at 80 ° C., and then fired at a temperature of 350 ° C. to obtain a composite material of fluororesin and glass fiber (thickness: 135 ⁇ m).
  • a surface activation treatment liquid is mixed.
  • a surface activation treatment liquid is applied and adhered to one side of a fluororesin / glass fiber composite material with a continuous coating apparatus, dried at 80 ° C., and then baked at a temperature of 350 ° C. to attach silica.
  • the surface activation treatment layer was obtained by firing.
  • liquid polyimide varnish 100 parts by mass of a solvent (dimethylacetamide (DMAC)) is mixed with 100 parts by mass of a commercial product (“Toray Nice # 3000” (trade name) manufactured by Toray Industries, Inc.), and the viscosity is 50 Cp.
  • DMAC dimethylacetamide
  • Toray Nice # 3000 trade name
  • the viscosity is 50 Cp.
  • the liquid polyimide varnish was obtained.
  • the liquid polyimide varnish is applied and adhered to the surface activated surface of the composite material (thickness 135 ⁇ m) of the fluororesin and glass fiber using a continuous coating apparatus, dried at 80 ° C., and 350 Firing at a temperature of 0 ° C.
  • the polyimide resin is superior in wear resistance, non-adhesiveness, and low friction than the fluororesin. From this result, it was found that the polyimide resin is less likely to wear and slip than the fluororesin. This result is the result at room temperature. In the case where the multilayer sheet of the present invention is applied to the hot plate protective sheet or the conveying sheet of the laminating apparatus described in Example 2, the ambient temperature is about 170 ° C. In such a case, the polyimide resin is superior in non-adhesiveness (easy to peel).
  • Example A1 For the structure of Example A1, it is preferable to use a fluorine resin surface on the workpiece side where non-adhesiveness is important and grip performance is not important, and a polyimide resin surface on the workpiece non-contact side where wear resistance and grip properties are important. There is, but is not limited to.
  • Example A2> (2) Multi-layer sheet having polyimide resin surface layers formed on both sides of the composite material A multi-layer sheet was obtained in the same manner as in Example A1.
  • Example A2 Surface activation treatment and formation of a polyimide resin surface layer are performed on the surface of the multilayer sheet on which the polyimide resin surface layer is not formed in the same manner as in Example A1, and the polyimide resin surface is formed on both surfaces of the composite material.
  • a multilayer sheet (thickness: 145 ⁇ m) on which a layer was formed was obtained (FIG. 2).
  • the structure of Example A2 is suitable for use in applications where wear resistance and grip properties are important and non-stickiness is not important, but is not limited thereto.
  • Example A3> (3) Multi-layer sheet of Example A1 and other sheets and endless belt
  • the multi-layer sheet (thickness 140 ⁇ m) of Example A1, a fluororesin and a glass fiber composite material (thickness 135 ⁇ m) are laminated, and endless.
  • the endless belts (thicknesses) with the fluororesin layer surfaces stacked on each other and heat-sealed at a temperature of 350 ° C. with a hot press machine to form a fluororesin surface layer on one side and a polyimide resin surface layer on the other side 275 ⁇ m) was obtained (FIG. 4).
  • Example A4 Double-sided polyimide resin endless belt obtained by laminating two multilayer sheets of Example A1 Two belts of the multilayer sheet (thickness 140 ⁇ m) of Example A1 were prepared, and the fluororesin layer surfaces were made to be endless. Was laminated by heat fusion at a temperature of 350 ° C.
  • Example A4 The structure of the endless belt of Example A4 is suitable for use in applications where wear resistance and grip properties are important and non-stickiness is not important, but is not limited thereto.
  • various non-adhesive properties, abrasion resistance, and grip properties are provided as necessary, and the various dimensions can be obtained by cutting to the required dimensions and endlessly using a mold or the like.
  • a conveyor belt or conveyor sheet comprising the multilayer sheet. it can.
  • Example A1 Although the liquid polyimide varnish was applied to the multilayer sheet of Example A1 without performing surface activation treatment, the multilayer sheet could not be bonded and a usable multilayer sheet having sufficient bonding strength could not be obtained.
  • Examples C1 to C4> In Examples A1 to A4, the multilayer sheet C1 according to the present invention was used in the same manner as in Examples A1 to A4, except that the surface activation treatment layer was formed by performing a metal sodium etching treatment instead of the silica adhesion baking treatment. , C2 and endless belts C3 and C4 were obtained.
  • Examples D1 to D4> multilayer sheets D1 and D2 according to the present invention were used in the same manner as in Examples A1 to A4, except that the surface activation treatment layer was formed by performing plasma treatment instead of silica adhesion baking treatment. And endless belts D3 and D4 were obtained.
  • ⁇ Joint strength test> For the polyimide surface layer of each multilayer sheet obtained by Examples A1 to A4, Examples C1 to C4 and Examples D1 to D4, a cross-cut test (1 mm ⁇ 100 mm) in accordance with JIS H5400 However, the number of squares peeled off from the multilayer sheet was 0 in any multilayer sheet. On the other hand, in Comparative Example A1 in which the surface activation treatment layer was not performed, the number of cells that were peeled off was 100. The evaluation results are shown in Table 2.
  • Example 2 is an example in which the multilayer sheet of the present invention is used for a hot plate protective sheet and a conveying sheet of a laminating apparatus for manufacturing a solar cell module, and will be described with reference to FIGS.
  • the workpiece in Example 1 corresponds to the solar cell module (“20” in FIG. 13) in Example 2.
  • the structure of the laminating apparatus 100 for manufacturing a solar cell module includes an upper case 110, a hot plate 122 (see FIG. 6), a conveying sheet 130, a diaphragm 112, a lower case 120, a hot plate protective sheet 400 ( Etc.).
  • FIG. 5 the structure of the laminating apparatus 100 for manufacturing a solar cell module includes an upper case 110, a hot plate 122 (see FIG. 6), a conveying sheet 130, a diaphragm 112, a lower case 120, a hot plate protective sheet 400 ( Etc.).
  • FIG. 6 is a side sectional view of the laminating portion of the laminating apparatus.
  • FIG. 7 is a side cross-sectional view of the laminating portion at the time of laminating by the laminating apparatus.
  • a hot plate protection sheet 400 is provided on the surface of the hot plate 122, and a transport sheet 130 is movably provided thereon. Yes.
  • the transport sheet travels on the hot plate while the workpiece 20 is mounted, so that the upper surface of the hot plate is worn by the transport sheet.
  • a hot plate protective sheet is provided on the hot plate.
  • the solar cell module has a configuration in which a string 25 is sandwiched between a transparent cover glass 21 and a back material 22 via fillers 23 and 24.
  • the back material 22 is made of an opaque material such as polyethylene resin.
  • EVA ethylene vinyl acetate resin or the like is used.
  • the string 25 has a configuration in which solar cells 28 as crystal cells are connected between electrodes 26 and 27 through lead wires 29.
  • the conveyance sheet 130 receives the workpiece 20 before lamination from the carry-in conveyor 200 in FIG.
  • the conveyance sheet 130 delivers the to-be-processed object 20 after lamination to the carrying-out conveyor 300 of FIG. 5, 6, and 7, the conveying sheet 130 is similar in structure to the conventional hot plate protection sheet, and is therefore added as (400).
  • the laminating process by the laminating apparatus 100 according to the present embodiment will be described more specifically. First, as illustrated in FIG. 6, the conveyance sheet 130 conveys the workpiece 20 to the center position of the laminate unit 101. Next, an elevating device (not shown) lowers the upper case 110.
  • the laminating unit 101 performs evacuation by a vacuum pump in the upper chamber 113 through the intake / exhaust port 114 of the upper case 110. Similarly, the laminating unit 101 evacuates the lower chamber 121 with a vacuum pump through the intake / exhaust port 123 of the lower case 120 (vacuum process). Due to the evacuation of the lower chamber 121, the bubbles contained in the workpiece 20 are sent out of the workpiece 20.
  • the laminate unit 101 introduces the atmosphere into the upper chamber 113 through the intake / exhaust port 114 of the upper case 110 while keeping the vacuum state of the lower chamber 121. As a result, a pressure difference is generated between the upper chamber 113 and the lower chamber 121, so that the diaphragm 112 expands. Accordingly, the diaphragm 112 is pushed downward as shown in FIG. 7 (pressurizing step).
  • the workpiece 20 is sandwiched between the diaphragm 112 extruded downward and the hot plate 122, and the constituent members are bonded by the fillers 23 and 24 melted by heating.
  • the laminating unit 101 introduces air into the lower chamber 121 through the intake / exhaust port 123 of the lower case 120.
  • the lifting device raises the upper case 110.
  • the transport sheet 130 By raising the upper case 110, the transport sheet 130 can be moved as shown in FIG.
  • the conveyance sheet 130 delivers the workpiece 20 after lamination to the carry-out conveyor 300. Lamination of the solar cell module is performed as described above.
  • the conventional hot plate protective sheet 400 and the conveying sheet 130 exist between the solar cell module 20 as the workpiece and the hot plate 122. It prevents the direct supply of heat from the hot plate. Further, during the laminating process, the hot plate protection sheet and the conveying sheet at the contact portion K in FIG. 7 are heated by the hot plate and further pressed between the diaphragm and the hot plate, so that both sheets are likely to adhere.
  • the conventional hot plate protection sheet and transport sheet are made of only a fluorine-based resin, or, as shown in FIG. 8 (corresponding to “2” in FIGS. 1 and 2), a glass cloth woven with glass fibers.
  • both sheets are laminated. In laminating, it is required to increase the rate of temperature increase of the solar cell module as much as possible in order to increase the production efficiency. Therefore, it is preferable that both sheets have a low specific heat, a high thermal conductivity, and a thin sheet.
  • the hot plate protection sheet travels on top of the solar cell module, which is the workpiece to be processed, so if there is adhesion between the transfer sheet and the hot plate protection sheet due to lamination, The sheet is damaged. Further, even if the hot plate protection sheet itself is damaged, the transport sheet is damaged.
  • the hot plate protection sheet is damaged mainly due to adhesion to the transport sheet. For this reason, it is important that the hot plate protection sheet has a configuration in which the hot plate side easily adheres to the hot plate and does not easily adhere to the transport sheet. Even if the hot plate protection sheet and the conveying sheet of the present invention are pressed for about 15 minutes at 175 ° C. and 0.1 MPa, which are lamination conditions in a laminating apparatus, both sheets do not adhere.
  • a laminating apparatus for manufacturing a solar cell module is formed by sandwiching EVA resin as a sealant and cross-linking it between a hot plate and a diaphragm for a certain time at a predetermined temperature under a vacuum state. .
  • the hot plate Since the crosslinking of the EVA resin starts at about 140 ° C., the hot plate is set at about 150 to 170 ° C.
  • the above processing conditions of 175 ° C., 0.1 MPa, and pressurization for about 15 minutes correspond to the temperature, pressure, and time that the hot plate protection sheet receives in the laminating process.
  • the hot plate protective sheet and the transport sheet of the present invention like the multilayer sheet of the present invention, have a polyimide resin (hereinafter, polyimide resin) having a thickness of about several ⁇ m on the surface of the composite layer described in Example 1. Called).
  • As the composite layer only a fluororesin may be used, or a composite of a heat resistant fiber woven fabric corresponding to the portion “2” in FIGS.
  • the hot plate protection sheet and the transport sheet of the present invention are used in a laminating apparatus for manufacturing a solar cell module, and the size is approximately several 100 mm square to about 1 m ⁇ 2 m, Can be larger. By making the hot plate protection sheet and the conveying sheet of the present invention have the above-described configuration, adhesion of both sheets can be eliminated.
  • the polyimide resin on the surface has high heat resistance, and has the effect of preventing partial softening under the thermal conditions applied during lamination and preventing adhesion of both sheets.
  • Such a polyimide resin layer may be provided on both the hot plate protection sheet and the conveyance sheet, or may be provided on either one.
  • a polyimide resin layer is provided on the hot plate protection sheet side, it is provided on the contact surface side of the conveying sheet of the hot plate protection sheet as shown in FIG.
  • a polyimide resin layer is provided on the conveying sheet side, it is provided on the hot plate protection sheet side of the conveying sheet.
  • the hot plate protection sheet may be configured to provide the polyimide resin layer only on the surface in contact with the transport sheet.
  • the transport sheet may have a configuration in which the polyimide resin layer is provided only on the surface where the transport sheet is in contact with the hot plate protection sheet.
  • the polyimide resin layer to be processed on the hot plate protection sheet and the transport sheet is also effective in preventing adhesion, such as a method of distributing the polyimide resin-containing portion in a striped or island shape on the sheet surface. Can be selected as appropriate so that is expressed.
  • the thickness of the hot plate protection sheet and transport sheet is preferably 35 ⁇ m to 205 ⁇ m, more preferably 70 ⁇ m to 205 ⁇ m, and even more preferably 85 ⁇ m to 205 ⁇ m. If the thickness of the hot plate protection sheet is less than 35 ⁇ m, it is preferable in that the heat transfer of the hot plate is not hindered. However, since the tensile strength is too weak, the hot plate protection sheet may be damaged when attached to the hot plate. There is.
  • Example E1 if the thickness of the hot plate protection sheet exceeds 205 ⁇ m, heat transfer to the workpiece is greatly hindered.
  • Example E2 if the thickness of the hot plate protection sheet exceeds 205 ⁇ m, heat transfer to the workpiece is greatly hindered.
  • Example E2 if the thickness of the hot plate protection sheet exceeds 205 ⁇ m, heat transfer to the workpiece is greatly hindered.
  • Example E2 if the thickness of the hot plate protection sheet exceeds 205 ⁇ m, heat transfer to the workpiece is greatly hindered.
  • Example E2 the degree of adhesion between the hot plate protection sheet of the present invention and the transport sheet was confirmed.
  • the hot plate protection sheets of the examples and comparative examples those in Table 3 were used.
  • the conveyance sheet the premium 10 (manufactured by Saint-Gobain Co., Ltd.), which is a conventional product, was used for each of Example E1, Example E2, Comparative Example E1, and Comparative Example E2.
  • the material of the conveying sheet is a composite layer of glass cloth and fluororesin.
  • the hot plate protection sheet and the transport sheet were set to overlap each other on a heating press machine capable of realizing a pressing force and a heating temperature in a laminating apparatus for manufacturing a solar cell module, and heated and pressurized for a certain time.
  • the heating press has a structure that is divided into an upper part and a lower part, and is a structure that can control the temperature of each of the upper part and the lower part and can apply a predetermined pressure.
  • the hot plate protection sheet of the present invention was placed on the pedestal on the lower side of the heating press. At this time, it is not particularly fixed.
  • the conventional conveyance sheet was attached to the pedestal on the upper side of the heating press, and its periphery was fixed with a frame-shaped fixing member. Next, it pressed with the predetermined
  • the pressurizing conditions were such that the temperatures of the upper and lower pedestals were both set to 175 ° C., and pressure was pressed at 0.1 MPa for 15 minutes. After pressurizing for 15 minutes, the upper pedestal of the heating press was raised and separated from the lower pedestal. At this time, the case where the hot plate protection sheet of the present invention was lifted up together with the transport sheet and remained lifted was defined as “attached”.
  • thermocouple was set on the pedestal on the lower side of the heating press, and the hot plate protection sheet of the present invention was placed thereon and pressed.
  • the pressurizing condition was set to 175 ° C. only for the upper pedestal, and the lower pedestal was pressed at 0.4 MPa for 20 seconds with no heating.
  • Example F1 is a temperature change when the hot plate protection sheet is the same material as Example E1 and has a thickness of 105 ⁇ m.
  • Example F2 is a temperature change when the hot plate protection sheet is the same material as Example E2 and has a thickness of 105 ⁇ m.
  • Comparative Example F1 is a temperature change when the hot plate protection sheet is the same material as Comparative Example E1 and has a thickness of 220 ⁇ m. ((4) in Fig.
  • Comparative Example F2 is a temperature change when the hot plate protection sheet is the same material as Comparative Example E2 and has a thickness of 100 ⁇ m. ((3) in Fig. 12) As can be seen from FIG. 12, Examples F1, F2 and Comparative Example F2 are thin, so the temperature rises quickly, and when the solar cell module is laminated, the temperature of the hot plate of the laminating apparatus is quickly transmitted to the workpiece. I understand that I can do it. Further, in Example F1 and Example F2, the rate of temperature increase is faster than that in the case where the thickness of the hot plate protection sheet using the same material as that of the conventional product is approximately the same.
  • Comparative Example F2 the thickness is thin and the temperature rise rate is fast, but both sheets after lamination are adhered, and when the workpiece is mounted on the transport sheet and run, the hot plate protection sheet is damaged.
  • Examples F1 and F2 after laminating, there is no adhesion between the hot plate protection sheet of this embodiment and the transport sheet, and there is no breakage of the hot plate protection sheet even if the work piece is mounted on the transport sheet and run. . Therefore, by using the hot plate protection sheet and the transport sheet of the present invention in a laminating apparatus for manufacturing a solar cell module, the heating time at the time of laminating the solar cell module is not damaged even if the thickness of both sheets is reduced. Can be shortened and the production efficiency can be improved.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
PCT/JP2011/053883 2010-11-18 2011-02-16 複層シートおよびエンドレスベルト WO2012066794A1 (ja)

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KR1020137014164A KR20140027064A (ko) 2010-11-18 2011-02-16 복층 시트 및 엔드리스 벨트
CN201180065445.2A CN103370194B (zh) 2010-11-18 2011-02-16 复层薄材及环状带

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EP2930756A4 (en) * 2012-12-07 2016-07-13 Chukoh Chem Ind INTEGRATED FILM MATERIAL OF SOLAR CELL

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TWI511188B (zh) * 2012-09-07 2015-12-01 Iner Aec Executive Yuan 一種可撓式薄膜元件形成指狀金屬電極佈線的方法及所製造之裝置
EP2829381A1 (de) * 2013-07-25 2015-01-28 PackSys Global (Switzerland) Ltd. Schweißvorrichtung zum Herstellen von Tubenkörpern
WO2019031154A1 (ja) * 2017-08-10 2019-02-14 本多産業株式会社 複層シームレスベルトおよびその製造方法
US11407616B2 (en) * 2020-01-24 2022-08-09 Otis Elevator Company Elevator belt surface protection for installation

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JP2000101117A (ja) * 1998-09-24 2000-04-07 Nisshinbo Ind Inc 太陽電池におけるラミネート装置
JP2005203577A (ja) * 2004-01-15 2005-07-28 Mitsubishi Heavy Ind Ltd 太陽電池製造方法及び太陽電池
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JP2000101117A (ja) * 1998-09-24 2000-04-07 Nisshinbo Ind Inc 太陽電池におけるラミネート装置
JP2005203577A (ja) * 2004-01-15 2005-07-28 Mitsubishi Heavy Ind Ltd 太陽電池製造方法及び太陽電池
JP2006021403A (ja) * 2004-07-07 2006-01-26 Chuko Kasei Kogyo Kk 耐摩耗性シート
JP2011031572A (ja) * 2009-08-05 2011-02-17 Honda Sangyo Kk 複層シート、エンドレスベルトならびにその製造方法

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US10396224B2 (en) 2012-12-07 2019-08-27 Chukoh Chemical Industries, Ltd. Solar cell integrated film material

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JP2012106424A (ja) 2012-06-07
TWI511873B (zh) 2015-12-11
KR20140027064A (ko) 2014-03-06
JP5750663B2 (ja) 2015-07-22
CN103370194A (zh) 2013-10-23
CN103370194B (zh) 2015-07-29
TW201221348A (en) 2012-06-01

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