WO2021017217A1 - High-performance protective film for back surface of photovoltaic assembly and preparation method therefor - Google Patents

High-performance protective film for back surface of photovoltaic assembly and preparation method therefor Download PDF

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WO2021017217A1
WO2021017217A1 PCT/CN2019/113528 CN2019113528W WO2021017217A1 WO 2021017217 A1 WO2021017217 A1 WO 2021017217A1 CN 2019113528 W CN2019113528 W CN 2019113528W WO 2021017217 A1 WO2021017217 A1 WO 2021017217A1
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parts
protective film
powder
crosslinking agent
acetate copolymer
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PCT/CN2019/113528
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French (fr)
Chinese (zh)
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郭学宏
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南京唐壹信息科技有限公司
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Publication of WO2021017217A1 publication Critical patent/WO2021017217A1/en

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    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
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    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
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    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
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    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • 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
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    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
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    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • H01L31/049—Protective back sheets
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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    • 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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    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
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    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/08—Copolymers of ethene
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    • C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
    • C08J2471/02—Polyalkylene oxides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08J2497/00—Characterised by the use of lignin-containing materials
    • C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • C—CHEMISTRY; METALLURGY
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    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
    • C08K2003/2213—Oxides; Hydroxides of metals of rare earth metal of cerium
    • C—CHEMISTRY; METALLURGY
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    • C08K3/16—Halogen-containing compounds
    • C—CHEMISTRY; METALLURGY
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    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/10—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • C—CHEMISTRY; METALLURGY
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    • C—CHEMISTRY; METALLURGY
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    • C08K9/00—Use of pretreated ingredients
    • C08K9/04—Ingredients treated with organic substances
    • C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
    • 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
    • Y02E10/52—PV systems with concentrators

Definitions

  • the invention relates to the technical field of photovoltaic modules, in particular to a method for preparing a high-performance protective film on the back of photovoltaic modules.
  • Photovoltaic is a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. It has two modes of independent operation and grid-connected operation. The manufacturing capacity of China's photovoltaic industry is developing rapidly, but The level of science and technology has not improved fast. In order to achieve sustainable development of energy and environment, countries all over the world regard solar photovoltaic power generation as the focus of new energy and renewable energy development. Photovoltaic panel modules are a kind of power generation that generates direct current when exposed to sunlight. The device is composed of thin solid photovoltaic cells almost entirely made of semiconductor materials, and the back of the photovoltaic module needs to be protected by a protective film.
  • the protective film on the back of the traditional photovoltaic module is composed of a fluorine-containing element film or a fluorine-containing coating with a service life of more than 25 years as a protective layer, and is combined with a water-resistant substrate material (such as polyester film) with excellent high-voltage resistance and insulation as the base layer to make.
  • a fluorine-containing element film or a fluorine-containing coating with a service life of more than 25 years as a protective layer
  • a water-resistant substrate material such as polyester film
  • the purpose of the present invention is to aim at the defects and deficiencies of the prior art to provide a method for preparing a high-performance protective film on the back of photovoltaic modules.
  • the protective film has good mechanical properties and stable performance at high temperatures.
  • a method for preparing a high-performance protective film on the back of photovoltaic modules which is composed of the following parts by weight of raw materials: 36-42 parts of modified EVA resin, modified masson pine powder 28-32 parts of ethylene-vinyl acetate copolymer, 14-16 parts of pretreated basalt fiber, 10-12 parts of zeolite powder, 4-8 parts of nanoporous shell powder, 3-6 parts of peroxide crosslinking agent, cross-assisting 1-3 parts of coupling agent, 6-8 parts of polyethylene oxide, 8-15 parts of vinyl fluoride, 5-8 parts of cerium oxide, 5-8 parts of lithium fluoride,
  • a preparation method of a high-performance protective film on the back of a photovoltaic module includes the following steps: adding raw materials to a high-speed mixer for stirring at a speed of 125-135r/min, a stirring time of 25-35min, and then adding Extrusion is carried out in a twin-screw extruder, and the extrusion temperature is 125-135°C to obtain the high-performance protective film on the back of the photovoltaic module of the present invention.
  • the method for preparing the modified EVA resin is to add EVA resin and methyltrimethoxysilane to a reaction kettle for reaction, the reaction temperature is 100-115°C, the reaction time is 25-35min, and then phenolsulfonic acid is added to The temperature is increased to 120-145°C, the reaction is continued for 15-25 minutes, and then cooled to room temperature to obtain the modified EVA resin.
  • the method for preparing the masson pine powder modified ethylene-vinyl acetate copolymer is to pulverize masson pine and then add it to deionized water for dispersion to prepare a mass fraction of 94-96% masson pine wood powder solution, and then add to it
  • the ethylene-vinyl acetate copolymer is continuously stirred for 25-35 min, followed by suction filtration and drying to obtain masson pine powder modified ethylene-vinyl acetate copolymer.
  • the mass fraction of the 94-96% masson pine wood powder solution and the ethylene-vinyl acetate copolymer substance is (20-30):100.
  • the mass fraction of the 94-96% masson pine wood powder solution and the ethylene-vinyl acetate copolymer substance is 25:100.
  • the pretreatment basalt fiber adopts basalt fiber soaked in the silane coupling agent for 35-45 minutes, and the soaking temperature is 75-85°C.
  • the silane coupling agent is KH-560.
  • the zeolite powder is faujasite zeolite powder.
  • the peroxide crosslinking agent is 1,4-bis-tert-butylperoxyisopropylbenzene hexane.
  • the said auxiliary crosslinking agent is triallyl cyanurate.
  • the beneficial effects of the present invention are: polyacrylate is used as the main material to ensure the high transmittance of the protective film; adding a small amount of fluorine-containing polymer not only does not affect the transmittance of the protective film under daily and non-daily exposure , And increase the corrosion resistance and wear resistance of the protective film; the added trace metal compound can significantly improve the chemical and physical properties of the protective film, and ensure low reflectivity without affecting the high light transmittance of the film And low radiation absorption rate, while improving the weather resistance, aging resistance and low and high temperature resistance of the film.
  • a method for preparing a high-performance protective film on the back of a photovoltaic module which is composed of the following parts by weight of raw materials: 36 parts by weight of modified EVA resin, 28 parts of masson pine powder modified ethylene-vinyl acetate copolymer, and 14 parts of pretreated basalt fiber Parts, 10 parts of zeolite powder, 4 parts of nanoporous shell powder, 3 parts of peroxide crosslinking agent, 1 part of co-crosslinking agent, 6 parts of polyethylene oxide, 8 parts of vinyl fluoride, 5 parts of cerium oxide, fluorinated 5 parts of lithium.
  • a preparation method of a high-performance protective film on the back of a photovoltaic module includes the following steps: adding raw materials to a high-speed mixer for stirring at a speed of 125-135r/min, a stirring time of 25-35min, and then adding Extrusion is carried out in a twin-screw extruder, and the extrusion temperature is 125-135°C to obtain the high-performance protective film on the back of the photovoltaic module of the present invention.
  • the method for preparing the modified EVA resin is to add EVA resin and methyltrimethoxysilane to a reaction kettle for reaction, the reaction temperature is 100-115°C, the reaction time is 25-35min, and then phenolsulfonic acid is added to The temperature is increased to 120-145°C, the reaction is continued for 15-25 minutes, and then cooled to room temperature to obtain the modified EVA resin.
  • the method for preparing the masson pine powder modified ethylene-vinyl acetate copolymer is to pulverize masson pine and then add it to deionized water for dispersion to prepare a mass fraction of 94-96% masson pine wood powder solution, and then add to it
  • the ethylene-vinyl acetate copolymer is continuously stirred for 25-35min, followed by suction filtration and drying to obtain masson pine powder modified ethylene-vinyl acetate copolymer.
  • the mass fraction of the 94-96% masson pine wood powder solution and the ethylene-vinyl acetate copolymer substance is (20-30):100.
  • the mass fraction of the 94-96% masson pine wood powder solution and the ethylene-vinyl acetate copolymer substance is 25:100.
  • the pretreated basalt fiber adopts basalt fiber soaked in the silane coupling agent for 35-45 minutes, and the soaking temperature is 75-85°C.
  • the silane coupling agent is KH-560.
  • the zeolite powder is faujasite zeolite powder.
  • the peroxide crosslinking agent is 1,4-bis-tert-butylperoxyisopropylbenzene hexane.
  • the said auxiliary crosslinking agent is triallyl cyanurate.
  • a high-performance protective film for the back of photovoltaic modules It is sequentially arranged with an air-side fluorine film protective layer and an adhesive layer from the outside to the inside; the air-side fluorine film protective layer mainly protects the PET support layer from ultraviolet, wind and sand erosion and weakening PET degradation rate to ensure the efficient operation of crystalline silicon modules as the "heart" of photovoltaic modules; bonding layer: mainly bond the fluorine film layer and the PET layer together without weakening the bond due to moisture, high temperature, etc.
  • PET support layer mainly plays a mechanical support role and isolates water vapor and oxygen; it is not due to water vapor, oxygen and high and low temperature effects Accelerate degradation or cracking and lose the necessary support and protection; the inner layer of fluorine film protection layer; because the inner layer does not directly contact the outdoor atmosphere, only the front sunlight radiation, so the use of the inner layer is not as good as the air The face protection film is so harsh.
  • this embodiment is composed of the following parts by weight of raw materials: 38 parts by weight of modified EVA resin, 30 parts of masson pine powder modified ethylene-vinyl acetate copolymer, and 15 parts of pretreated basalt fiber , 11 parts of zeolite powder, 5 parts of nanoporous shell powder, 5 parts of peroxide crosslinking agent, 2 parts of co-crosslinking agent, 7 parts of polyethylene oxide, 10 parts of vinyl fluoride, 10 parts of cerium oxide, lithium fluoride 7 servings.
  • Example 1 The difference between this example and Example 1 is that it is composed of the following parts by weight of raw materials: 42 parts by weight of modified EVA resin, 32 parts of masson pine powder modified ethylene-vinyl acetate copolymer, and 16 parts of pretreated basalt fiber , 12 parts of zeolite powder, 8 parts of nanoporous shell powder, 6 parts of peroxide crosslinking agent, 3 parts of co-crosslinking agent, 8 parts of polyethylene oxide, 15 parts of vinyl fluoride, 8 parts of cerium oxide, lithium fluoride 8 servings.
  • the beneficial effects of the present invention are: polyacrylate is used as the main material to ensure the high transmittance of the protective film; adding a small amount of fluorine-containing polymer not only does not affect the transmittance of the protective film under daily and non-daily exposure , And increase the corrosion resistance and wear resistance of the protective film; the added trace metal compound can significantly improve the chemical and physical properties of the protective film, and ensure low reflectivity without affecting the high light transmittance of the film And low radiation absorption rate, while improving the weather resistance, aging resistance and low and high temperature resistance of the film.

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Abstract

A high-performance protective film for a back surface of a photovoltaic assembly and a preparation method therefor, relating to the technical field of photovoltaic assemblies, and consisting of the following raw materials: a modified EVA resin, a Chinese red pine pollen-modified ethylene-vinyl acetate copolymer, a pre-treated basalt fiber, a zeolite powder, a nanoporous shell powder, a peroxide crosslinking agent, a co-crosslinking agent, polyethylene oxide, vinyl fluoride, cerium oxide, and lithium fluoride. Preparation can be completed by preparing the described materials according to measured proportions, and processing same on the basis of the preparation method for the high-performance protective film for the back surface of the photovoltaic assembly. The beneficial effects of the present invention are: the use of a polyacrylate as a main material ensures high transmittance in the protective film; the addition of a small amount of a fluorine-containing polymer not only does not impact the transmittance during solar exposure and non-exposure of the protective film, but also increases the corrosion resistance and wear resistance performance of the protective film; and the added small amount of metal compounds is able to markedly improve the chemical and physical performance of the protective film, while also improving the weathering resistance, anti-aging performance, and low- and high-temperature resistance performance of the thin film.

Description

一种光伏组件背面高性能保护膜及其制备方法High-performance protective film on the back of photovoltaic module and preparation method thereof 技术领域Technical field
本发明涉及光伏组件技术领域，具体涉及一种光伏组件背面高性能保护膜的制备方法。The invention relates to the technical field of photovoltaic modules, in particular to a method for preparing a high-performance protective film on the back of photovoltaic modules.
背景技术Background technique
光伏是一种利用太阳电池半导体材料的光伏效应，将太阳光辐射能直接转换为电能的一种新型发电系统，有独立运行和并网运行两种方式，中国光伏产业的制造能力发展飞速，但科技水平提高不快，为实现能源和环境的可持续发展，世界各国将太能能光伏发电作为新能源与可再生能源发展的重点，光伏板组件是一种暴露在阳光下便会产生直流电的发电装置，由几乎全部以半导体物料制成的薄身固体光伏电池组成，而光伏组件背面需要通过保护膜将其保护。Photovoltaic is a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. It has two modes of independent operation and grid-connected operation. The manufacturing capacity of China's photovoltaic industry is developing rapidly, but The level of science and technology has not improved fast. In order to achieve sustainable development of energy and environment, countries all over the world regard solar photovoltaic power generation as the focus of new energy and renewable energy development. Photovoltaic panel modules are a kind of power generation that generates direct current when exposed to sunlight. The device is composed of thin solid photovoltaic cells almost entirely made of semiconductor materials, and the back of the photovoltaic module needs to be protected by a protective film.
传统光伏组件背面保护膜是由具有25年以上使用寿命的含氟元素薄膜或含氟涂料作保护层，与作为基层的耐高压绝缘性能优异的阻水性基材材(如聚酯薄膜)复合而成。一方面氟材料在生产制造过程中对环境污染，另一方面在材料燃烧或回收过程中均易产生有毒氟化物，而且氟膜生产工艺复杂，产量难以满足日益膨胀的光伏行业发展需求。The protective film on the back of the traditional photovoltaic module is composed of a fluorine-containing element film or a fluorine-containing coating with a service life of more than 25 years as a protective layer, and is combined with a water-resistant substrate material (such as polyester film) with excellent high-voltage resistance and insulation as the base layer to make. On the one hand, fluorine materials pollute the environment during the manufacturing process, and on the other hand, toxic fluorides are easily generated during the burning or recycling of materials. In addition, the fluorine film production process is complicated, and the output cannot meet the growing needs of the photovoltaic industry.
发明内容Summary of the invention
本发明的目的在于针对现有技术的缺陷和不足，提供一种光伏组件背面高性能保护膜的制备方法，该保护膜不仅力学性能好，同时高温下性能依旧稳定The purpose of the present invention is to aim at the defects and deficiencies of the prior art to provide a method for preparing a high-performance protective film on the back of photovoltaic modules. The protective film has good mechanical properties and stable performance at high temperatures.
为实现上述目的，本发明采用以下技术方案是：一种光伏组件背面高性能保护膜的制备方法，它由以下重量份数的原料组成：改性EVA树脂36-42份、马尾松粉改性乙烯-乙酸乙烯酯共聚物28-32份、预处理玄武岩纤维14-16份、沸石粉10-12份、纳米多孔贝壳粉4-8份、过氧化物交联剂3-6份、助 交联剂1-3份、聚环氧乙烷6-8份、氟乙烯8-15份、氧化铈5-8份、氟化锂5-8份，In order to achieve the above purpose, the present invention adopts the following technical solution: a method for preparing a high-performance protective film on the back of photovoltaic modules, which is composed of the following parts by weight of raw materials: 36-42 parts of modified EVA resin, modified masson pine powder 28-32 parts of ethylene-vinyl acetate copolymer, 14-16 parts of pretreated basalt fiber, 10-12 parts of zeolite powder, 4-8 parts of nanoporous shell powder, 3-6 parts of peroxide crosslinking agent, cross-assisting 1-3 parts of coupling agent, 6-8 parts of polyethylene oxide, 8-15 parts of vinyl fluoride, 5-8 parts of cerium oxide, 5-8 parts of lithium fluoride,
一种光伏组件背面高性能保护膜的制备方法，该制备方法包括以下步骤：将原料依次加入到高速搅拌机中进行搅拌，搅拌转速为125-135r/min，搅拌时间为25-35min，随后再加入双螺杆挤出机中进行挤出，挤出温度为125-135℃，即得本发明的光伏组件背面高性能保护膜。A preparation method of a high-performance protective film on the back of a photovoltaic module. The preparation method includes the following steps: adding raw materials to a high-speed mixer for stirring at a speed of 125-135r/min, a stirring time of 25-35min, and then adding Extrusion is carried out in a twin-screw extruder, and the extrusion temperature is 125-135°C to obtain the high-performance protective film on the back of the photovoltaic module of the present invention.
所述改性EVA树脂制备方法为将EVA树脂、甲基三甲氧基硅烷加入到反应釜中进行反应，反应温度为100-115℃，反应时间为25-35min，随后再加入苯酚磺酸，将温度升至120-145℃，继续反应15-25min，随后再冷却至室温，即得改性EVA树脂。The method for preparing the modified EVA resin is to add EVA resin and methyltrimethoxysilane to a reaction kettle for reaction, the reaction temperature is 100-115°C, the reaction time is 25-35min, and then phenolsulfonic acid is added to The temperature is increased to 120-145°C, the reaction is continued for 15-25 minutes, and then cooled to room temperature to obtain the modified EVA resin.
所述马尾松粉改性乙烯-乙酸乙烯酯共聚物制备方法为将马尾松进行粉碎，随后加入到去离子水中进行分散，配制成质量分数为94-96％马尾松木粉溶液，随后向其中加入乙烯-乙酸乙烯酯共聚物，继续搅拌25-35min，随后抽滤，干燥，即得马尾松粉改性乙烯-乙酸乙烯酯共聚物。The method for preparing the masson pine powder modified ethylene-vinyl acetate copolymer is to pulverize masson pine and then add it to deionized water for dispersion to prepare a mass fraction of 94-96% masson pine wood powder solution, and then add to it The ethylene-vinyl acetate copolymer is continuously stirred for 25-35 min, followed by suction filtration and drying to obtain masson pine powder modified ethylene-vinyl acetate copolymer.
所述的94-96％马尾松木粉溶液、乙烯-乙酸乙烯酯共聚物物质的质量分数为(20-30)∶100。The mass fraction of the 94-96% masson pine wood powder solution and the ethylene-vinyl acetate copolymer substance is (20-30):100.
所述的94-96％马尾松木粉溶液、乙烯-乙酸乙烯酯共聚物物质的质量分数为25∶100。The mass fraction of the 94-96% masson pine wood powder solution and the ethylene-vinyl acetate copolymer substance is 25:100.
所述的预处理玄武岩纤维采用玄武岩纤维在硅烷偶联剂中浸泡35-45min，浸泡温度为75-85℃。The pretreatment basalt fiber adopts basalt fiber soaked in the silane coupling agent for 35-45 minutes, and the soaking temperature is 75-85°C.
所述的硅烷偶联剂为KH-560。The silane coupling agent is KH-560.
所述的沸石粉为八面沸石粉。The zeolite powder is faujasite zeolite powder.
所述的过氧化物交联剂为1，4-双叔丁基过氧异丙基苯己烷。The peroxide crosslinking agent is 1,4-bis-tert-butylperoxyisopropylbenzene hexane.
所述的助交联剂为三聚氰酸三烯丙酯。The said auxiliary crosslinking agent is triallyl cyanurate.
本发明的有益效果是：以聚丙烯酸酯作主材，保证了保护膜的高透射率；添加少量的含氟类聚合物，不仅没有影响保护膜在日曝和非日曝下的透光率，而且增加了保护膜的耐腐蚀和耐磨损性能；添加的微量金属化合物可明显改 善保护膜的化学和物理性能，在不影响膜的高透光率的基础上，又保证了低反射率和低辐射吸收率，同时提高了薄膜的耐候性、抗老化性和耐低、高温性能。The beneficial effects of the present invention are: polyacrylate is used as the main material to ensure the high transmittance of the protective film; adding a small amount of fluorine-containing polymer not only does not affect the transmittance of the protective film under daily and non-daily exposure , And increase the corrosion resistance and wear resistance of the protective film; the added trace metal compound can significantly improve the chemical and physical properties of the protective film, and ensure low reflectivity without affecting the high light transmittance of the film And low radiation absorption rate, while improving the weather resistance, aging resistance and low and high temperature resistance of the film.
具体实施方式Detailed ways
实施例1Example 1
一种光伏组件背面高性能保护膜的制备方法，它由以下重量份数的原料组成：改性EVA树脂36份、马尾松粉改性乙烯-乙酸乙烯酯共聚物28份、预处理玄武岩纤维14份、沸石粉10份、纳米多孔贝壳粉4份、过氧化物交联剂3份、助交联剂1份、聚环氧乙烷6份、氟乙烯8份、氧化铈5份、氟化锂5份。A method for preparing a high-performance protective film on the back of a photovoltaic module, which is composed of the following parts by weight of raw materials: 36 parts by weight of modified EVA resin, 28 parts of masson pine powder modified ethylene-vinyl acetate copolymer, and 14 parts of pretreated basalt fiber Parts, 10 parts of zeolite powder, 4 parts of nanoporous shell powder, 3 parts of peroxide crosslinking agent, 1 part of co-crosslinking agent, 6 parts of polyethylene oxide, 8 parts of vinyl fluoride, 5 parts of cerium oxide, fluorinated 5 parts of lithium.
一种光伏组件背面高性能保护膜的制备方法，该制备方法包括以下步骤：将原料依次加入到高速搅拌机中进行搅拌，搅拌转速为125-135r/min，搅拌时间为25-35min，随后再加入双螺杆挤出机中进行挤出，挤出温度为125-135℃，即得本发明的光伏组件背面高性能保护膜。A preparation method of a high-performance protective film on the back of a photovoltaic module. The preparation method includes the following steps: adding raw materials to a high-speed mixer for stirring at a speed of 125-135r/min, a stirring time of 25-35min, and then adding Extrusion is carried out in a twin-screw extruder, and the extrusion temperature is 125-135°C to obtain the high-performance protective film on the back of the photovoltaic module of the present invention.
所述改性EVA树脂制备方法为将EVA树脂、甲基三甲氧基硅烷加入到反应釜中进行反应，反应温度为100-115℃，反应时间为25-35min，随后再加入苯酚磺酸，将温度升至120-145℃，继续反应15-25min，随后再冷却至室温，即得改性EVA树脂。The method for preparing the modified EVA resin is to add EVA resin and methyltrimethoxysilane to a reaction kettle for reaction, the reaction temperature is 100-115°C, the reaction time is 25-35min, and then phenolsulfonic acid is added to The temperature is increased to 120-145°C, the reaction is continued for 15-25 minutes, and then cooled to room temperature to obtain the modified EVA resin.
所述马尾松粉改性乙烯-乙酸乙烯酯共聚物制备方法为将马尾松进行粉碎，随后加入到去离子水中进行分散，配制成质量分数为94-96％马尾松木粉溶液，随后向其中加入乙烯-乙酸乙烯酯共聚物，继续搅拌25-35min，随后抽滤，干燥，即得马尾松粉改性乙烯-乙酸乙烯酯共聚物。The method for preparing the masson pine powder modified ethylene-vinyl acetate copolymer is to pulverize masson pine and then add it to deionized water for dispersion to prepare a mass fraction of 94-96% masson pine wood powder solution, and then add to it The ethylene-vinyl acetate copolymer is continuously stirred for 25-35min, followed by suction filtration and drying to obtain masson pine powder modified ethylene-vinyl acetate copolymer.
所述的94-96％马尾松木粉溶液、乙烯-乙酸乙烯酯共聚物物质的质量分数为(20-30)∶100。The mass fraction of the 94-96% masson pine wood powder solution and the ethylene-vinyl acetate copolymer substance is (20-30):100.
所述的94-96％马尾松木粉溶液、乙烯-乙酸乙烯酯共聚物物质的质量分数为25∶100。The mass fraction of the 94-96% masson pine wood powder solution and the ethylene-vinyl acetate copolymer substance is 25:100.
所述的预处理玄武岩纤维采用玄武岩纤维在硅烷偶联剂中浸泡 35-45min，浸泡温度为75-85℃。The pretreated basalt fiber adopts basalt fiber soaked in the silane coupling agent for 35-45 minutes, and the soaking temperature is 75-85°C.
所述的硅烷偶联剂为KH-560。The silane coupling agent is KH-560.
所述的沸石粉为八面沸石粉。The zeolite powder is faujasite zeolite powder.
所述的过氧化物交联剂为1，4-双叔丁基过氧异丙基苯己烷。The peroxide crosslinking agent is 1,4-bis-tert-butylperoxyisopropylbenzene hexane.
所述的助交联剂为三聚氰酸三烯丙酯。The said auxiliary crosslinking agent is triallyl cyanurate.
一种光伏组件背面高性能保护膜，它由外之内依次设置有空气面氟膜保护层与粘结层；空气面氟膜保护层，起作用主要是保护PET支撑层不受紫外、风沙侵蚀，弱化PET降解速度，以保证作为光伏组件的“心脏”-晶硅组件的高效运行；粘结层：主要是将氟膜层和PET层粘结在一起，不因水汽、高温等作用而弱化粘结作用，并最终导致氟膜层与PET层的脱离而失去氟膜层应有的保护作用；PET支撑层；主要起机械支撑作用和隔绝水汽和氧气作用；不因在水汽、氧气和高低温作用加速降解或开裂而失去应有的支撑和保护作用；内层氟膜保护层；因内层不与户外大气环境直接接触，仅接触正面太阳光的辐照，因此对内层的使用要求不如空气面保护膜那么严苛。A high-performance protective film for the back of photovoltaic modules. It is sequentially arranged with an air-side fluorine film protective layer and an adhesive layer from the outside to the inside; the air-side fluorine film protective layer mainly protects the PET support layer from ultraviolet, wind and sand erosion and weakening PET degradation rate to ensure the efficient operation of crystalline silicon modules as the "heart" of photovoltaic modules; bonding layer: mainly bond the fluorine film layer and the PET layer together without weakening the bond due to moisture, high temperature, etc. It will eventually cause the fluorine film layer to separate from the PET layer and lose the protection that the fluorine film layer should have; PET support layer; mainly plays a mechanical support role and isolates water vapor and oxygen; it is not due to water vapor, oxygen and high and low temperature effects Accelerate degradation or cracking and lose the necessary support and protection; the inner layer of fluorine film protection layer; because the inner layer does not directly contact the outdoor atmosphere, only the front sunlight radiation, so the use of the inner layer is not as good as the air The face protection film is so harsh.
实施例2Example 2
本实施例与实施例1的不同点在于：它由以下重量份数的原料组成：改性EVA树脂38份、马尾松粉改性乙烯-乙酸乙烯酯共聚物30份、预处理玄武岩纤维15份、沸石粉11份、纳米多孔贝壳粉5份、过氧化物交联剂5份、助交联剂2份、聚环氧乙烷7份、氟乙烯10份、氧化铈10份、氟化锂7份。The difference between this embodiment and embodiment 1 is that it is composed of the following parts by weight of raw materials: 38 parts by weight of modified EVA resin, 30 parts of masson pine powder modified ethylene-vinyl acetate copolymer, and 15 parts of pretreated basalt fiber , 11 parts of zeolite powder, 5 parts of nanoporous shell powder, 5 parts of peroxide crosslinking agent, 2 parts of co-crosslinking agent, 7 parts of polyethylene oxide, 10 parts of vinyl fluoride, 10 parts of cerium oxide, lithium fluoride 7 servings.
实施例3Example 3
本实施例与实施例1的不同点在于：它由以下重量份数的原料组成：改性EVA树脂42份、马尾松粉改性乙烯-乙酸乙烯酯共聚物32份、预处理玄武岩纤维16份、沸石粉12份、纳米多孔贝壳粉8份、过氧化物交联剂6份、助交联剂3份、聚环氧乙烷8份、氟乙烯15份、氧化铈8份、氟化锂8份。The difference between this example and Example 1 is that it is composed of the following parts by weight of raw materials: 42 parts by weight of modified EVA resin, 32 parts of masson pine powder modified ethylene-vinyl acetate copolymer, and 16 parts of pretreated basalt fiber , 12 parts of zeolite powder, 8 parts of nanoporous shell powder, 6 parts of peroxide crosslinking agent, 3 parts of co-crosslinking agent, 8 parts of polyethylene oxide, 15 parts of vinyl fluoride, 8 parts of cerium oxide, lithium fluoride 8 servings.
本发明的有益效果是：以聚丙烯酸酯作主材，保证了保护膜的高透射率；添加少量的含氟类聚合物，不仅没有影响保护膜在日曝和非日曝下的透光率，而且增加了保护膜的耐腐蚀和耐磨损性能；添加的微量金属化合物可明显改 善保护膜的化学和物理性能，在不影响膜的高透光率的基础上，又保证了低反射率和低辐射吸收率，同时提高了薄膜的耐候性、抗老化性和耐低、高温性能。The beneficial effects of the present invention are: polyacrylate is used as the main material to ensure the high transmittance of the protective film; adding a small amount of fluorine-containing polymer not only does not affect the transmittance of the protective film under daily and non-daily exposure , And increase the corrosion resistance and wear resistance of the protective film; the added trace metal compound can significantly improve the chemical and physical properties of the protective film, and ensure low reflectivity without affecting the high light transmittance of the film And low radiation absorption rate, while improving the weather resistance, aging resistance and low and high temperature resistance of the film.
以上所述，仅用以说明本发明的技术方案而非限制，本领域普通技术人员对本发明的技术方案所做的其它修改或者等同替换，只要不脱离本发明技术方案的精神和范围，均应涵盖在本发明权利要求范围当中。The above descriptions are only used to illustrate the technical solutions of the present invention and not to limit them. Other modifications or equivalent substitutions made by those of ordinary skill in the art to the technical solutions of the present invention shall be applicable as long as they do not depart from the spirit and scope of the technical solutions of the present invention. Covered in the scope of the claims of the present invention.

Claims (10)

  1. 一种光伏组件背面高性能保护膜，它由以下重量份数的原料组成：改性EVA树脂36-42份、马尾松粉改性乙烯-乙酸乙烯酯共聚物28-32份、预处理玄武岩纤维14-16份、沸石粉10-12份、纳米多孔贝壳粉4-8份、过氧化物交联剂3-6份、助交联剂1-3份、聚环氧乙烷6-8份、氟乙烯8-15份、氧化铈5-8份、氟化锂5-8份。A high-performance protective film on the back of photovoltaic modules, which is composed of the following parts by weight of raw materials: 36-42 parts by weight of modified EVA resin, 28-32 parts by masson pine powder modified ethylene-vinyl acetate copolymer, and pretreated basalt fiber 14-16 parts, zeolite powder 10-12 parts, nanoporous shell powder 4-8 parts, peroxide crosslinking agent 3-6 parts, auxiliary crosslinking agent 1-3 parts, polyethylene oxide 6-8 parts , 8-15 parts of vinyl fluoride, 5-8 parts of cerium oxide, 5-8 parts of lithium fluoride.
  2. 一种光伏组件背面高性能保护膜的制备方法，该制备方法包括以下步骤：将原料依次加入到高速搅拌机中进行搅拌，搅拌转速为125-135r/min，搅拌时间为25-35min，随后再加入双螺杆挤出机中进行挤出，挤出温度为125-135℃，即得本发明的光伏组件背面高性能保护膜。A preparation method of a high-performance protective film on the back of a photovoltaic module. The preparation method includes the following steps: adding raw materials to a high-speed mixer for stirring at a speed of 125-135r/min, a stirring time of 25-35min, and then adding Extrusion is carried out in a twin-screw extruder, and the extrusion temperature is 125-135°C to obtain the high-performance protective film on the back of the photovoltaic module of the present invention.
  3. 根据权利要求1所述的一种光伏组件背面高性能保护膜，由以下重量份数的原料组成：改性EVA树脂36份、马尾松粉改性乙烯-乙酸乙烯酯共聚物28份、预处理玄武岩纤维14份、沸石粉10份、纳米多孔贝壳粉4份、过氧化物交联剂3份、助交联剂1份、聚环氧乙烷6份、氟乙烯8份、氧化铈5份、氟化锂5份。A high-performance protective film for the back of photovoltaic modules according to claim 1, which is composed of the following parts by weight of raw materials: 36 parts by weight of modified EVA resin, 28 parts by masson pine powder modified ethylene-vinyl acetate copolymer, pretreatment 14 parts of basalt fiber, 10 parts of zeolite powder, 4 parts of nanoporous shell powder, 3 parts of peroxide crosslinking agent, 1 part of co-crosslinking agent, 6 parts of polyethylene oxide, 8 parts of vinyl fluoride, 5 parts of cerium oxide , 5 parts of lithium fluoride.
  4. 根据权利要求1所述的一种光伏组件背面高性能保护膜，由以下重量份数的原料组成：改性EVA树脂38份、马尾松粉改性乙烯-乙酸乙烯酯共聚物30份、预处理玄武岩纤维15份、沸石粉11份、纳米多孔贝壳粉5份、过氧化物交联剂5份、助交联剂2份、聚环氧乙烷7份、氟乙烯10份、氧化铈10份、氟化锂7份。The high-performance protective film on the back of photovoltaic modules according to claim 1, which is composed of the following parts by weight of raw materials: 38 parts by weight of modified EVA resin, 30 parts by masson pine powder modified ethylene-vinyl acetate copolymer, pretreatment 15 parts of basalt fiber, 11 parts of zeolite powder, 5 parts of nanoporous shell powder, 5 parts of peroxide crosslinking agent, 2 parts of auxiliary crosslinking agent, 7 parts of polyethylene oxide, 10 parts of vinyl fluoride, 10 parts of cerium oxide , 7 parts of lithium fluoride.
  5. 根据权利要求1所述的一种光伏组件背面高性能保护膜，由以下重量份数的原料组成：改性EVA树脂42份、马尾松粉改性乙烯-乙酸乙烯酯共聚物32份、预处理玄武岩纤维16份、沸石粉12份、纳米多孔贝壳粉8份、过氧化物交联剂6份、助交联剂3份、聚环氧乙烷8份、氟乙烯15份、氧化铈8份、氟化锂8份。A high-performance protective film for the back of photovoltaic modules according to claim 1, which is composed of the following parts by weight of raw materials: 42 parts by weight of modified EVA resin, 32 parts of masson pine powder modified ethylene-vinyl acetate copolymer, pretreatment 16 parts of basalt fiber, 12 parts of zeolite powder, 8 parts of nanoporous shell powder, 6 parts of peroxide crosslinking agent, 3 parts of co-crosslinking agent, 8 parts of polyethylene oxide, 15 parts of vinyl fluoride, 8 parts of cerium oxide , 8 parts of lithium fluoride.
  6. 根据权利要求2所述的一种光伏组件背面高性能保护膜的制备方法， 其特征在于：所述改性EVA树脂制备方法为将EVA树脂、甲基三甲氧基硅烷加入到反应釜中进行反应，反应温度为100-115℃，反应时间为25-35min，随后再加入苯酚磺酸，将温度升至120-145℃，继续反应15-25min，随后再冷却至室温，即得改性EVA树脂。The method for preparing a high-performance protective film on the back of a photovoltaic module according to claim 2, wherein the method for preparing the modified EVA resin is to add EVA resin and methyltrimethoxysilane into a reactor for reaction. , The reaction temperature is 100-115℃, the reaction time is 25-35min, then phenolsulfonic acid is added, the temperature is increased to 120-145℃, the reaction is continued for 15-25min, and then cooled to room temperature to obtain the modified EVA resin .
  7. 根据权利要求2所述的一种光伏组件背面高性能保护膜的制备方法，其特征在于：所述马尾松粉改性乙烯-乙酸乙烯酯共聚物制备方法为将马尾松进行粉碎，随后加入到去离子水中进行分散，配制成质量分数为94-96％马尾松木粉溶液，随后向其中加入乙烯-乙酸乙烯酯共聚物，继续搅拌25-35min，随后抽滤，干燥，即得马尾松粉改性乙烯-乙酸乙烯酯共聚物。The method for preparing a high-performance protective film on the back of a photovoltaic module according to claim 2, wherein the method for preparing the masson pine powder modified ethylene-vinyl acetate copolymer is to pulverize the masson pine and then add it to Disperse in deionized water to prepare a mass fraction of 94-96% masson pine wood powder solution, then add ethylene-vinyl acetate copolymer to it, continue to stir for 25-35min, then filter and dry to obtain masson pine powder. Sexual ethylene-vinyl acetate copolymer.
  8. 根据权利要求2所述的一种光伏组件背面高性能保护膜的制备方法，其特征在于：所述的94-96％马尾松木粉溶液、乙烯-乙酸乙烯酯共聚物物质的质量分数为(20-30)∶100。A method for preparing a high-performance protective film on the back of photovoltaic modules according to claim 2, wherein the mass fraction of the 94-96% masson pine wood powder solution and the ethylene-vinyl acetate copolymer substance is (20 -30): 100.
  9. 根据权利要求2所述的一种光伏组件背面高性能保护膜的制备方法，其特征在于：所述的94-96％马尾松木粉溶液、乙烯-乙酸乙烯酯共聚物物质的质量分数为25∶100。The method for preparing a high-performance protective film on the back of a photovoltaic module according to claim 2, wherein the mass fraction of the 94-96% masson pine wood powder solution and the ethylene-vinyl acetate copolymer substance is 25: 100.
  10. 根据权利要求2所述的一种光伏组件背面高性能保护膜的制备方法，其特征在于：所述的预处理玄武岩纤维采用玄武岩纤维在硅烷偶联剂中浸泡35-45min，浸泡温度为75-85℃，所述的硅烷偶联剂为KH-560，所述的沸石粉为八面沸石粉，所述的过氧化物交联剂为1，4-双叔丁基过氧异丙基苯己烷，所述的助交联剂为三聚氰酸三烯丙酯。The method for preparing a high-performance protective film on the back of a photovoltaic module according to claim 2, characterized in that: the pretreated basalt fiber adopts basalt fiber soaked in silane coupling agent for 35-45min, and the immersion temperature is 75- 85°C, the silane coupling agent is KH-560, the zeolite powder is faujasite powder, and the peroxide crosslinking agent is 1,4-bis-tert-butylperoxycumene Hexane, the auxiliary crosslinking agent is triallyl cyanurate.
PCT/CN2019/113528 2019-07-29 2019-10-28 High-performance protective film for back surface of photovoltaic assembly and preparation method therefor WO2021017217A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005113076A (en) * 2003-10-10 2005-04-28 Sanvic Inc Vinyl acetate-ethylene copolymer composition
CN102433077A (en) * 2011-10-11 2012-05-02 宁波威克丽特功能塑料有限公司 Ethylene vinyl acetate (EVA) adhesive film for solar cell and preparation method thereof
JP2013008761A (en) * 2011-06-23 2013-01-10 Bridgestone Corp Solar cell sealing film and solar cell using the same
CN104553209A (en) * 2014-12-19 2015-04-29 苏州佳亿达电器有限公司 Solar photovoltaic panel protective film
CN107177318A (en) * 2017-06-08 2017-09-19 合肥华盖光伏科技有限公司 A kind of photovoltaic EVA adhesive film and preparation method thereof
CN109087964A (en) * 2018-07-24 2018-12-25 合肥华盖光伏科技有限公司 A kind of preparation method of photovoltaic module back side performance protective film

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005113076A (en) * 2003-10-10 2005-04-28 Sanvic Inc Vinyl acetate-ethylene copolymer composition
JP2013008761A (en) * 2011-06-23 2013-01-10 Bridgestone Corp Solar cell sealing film and solar cell using the same
CN102433077A (en) * 2011-10-11 2012-05-02 宁波威克丽特功能塑料有限公司 Ethylene vinyl acetate (EVA) adhesive film for solar cell and preparation method thereof
CN104553209A (en) * 2014-12-19 2015-04-29 苏州佳亿达电器有限公司 Solar photovoltaic panel protective film
CN107177318A (en) * 2017-06-08 2017-09-19 合肥华盖光伏科技有限公司 A kind of photovoltaic EVA adhesive film and preparation method thereof
CN109087964A (en) * 2018-07-24 2018-12-25 合肥华盖光伏科技有限公司 A kind of preparation method of photovoltaic module back side performance protective film

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