WO2016107403A1 - 一种增透的聚烯烃光伏组件封装胶膜及其制备方法 - Google Patents

一种增透的聚烯烃光伏组件封装胶膜及其制备方法 Download PDF

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WO2016107403A1
WO2016107403A1 PCT/CN2015/097440 CN2015097440W WO2016107403A1 WO 2016107403 A1 WO2016107403 A1 WO 2016107403A1 CN 2015097440 W CN2015097440 W CN 2015097440W WO 2016107403 A1 WO2016107403 A1 WO 2016107403A1
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photovoltaic module
polyolefin
antireflective
parts
film according
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French (fr)
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余鹏
吴建东
李伟博
汪加胜
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广州鹿山新材料股份有限公司
江苏鹿山光伏科技有限公司
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Priority to JP2017535815A priority Critical patent/JP6555730B2/ja
Publication of WO2016107403A1 publication Critical patent/WO2016107403A1/zh

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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/10Adhesives in the form of films or foils without carriers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/04Homopolymers or copolymers of ethene
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/04Homopolymers or copolymers of ethene
    • C09J123/06Polyethene
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    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/04Homopolymers or copolymers of ethene
    • C09J123/08Copolymers of ethene
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    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00Materials not provided for elsewhere
    • C09K3/10Materials in mouldable or extrudable form for sealing or packing joints or covers

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  • the invention relates to an encapsulating film, in particular to an antireflective polyolefin photovoltaic module encapsulating film and a preparation method thereof, and belongs to the field of solar cell module encapsulating film.
  • the traditional crystalline silicon solar module structure is a five-layer structure for protecting the glass/photovoltaic module encapsulation film/crystalline silicon cell/photovoltaic module encapsulation film/backsheet.
  • Photovoltaic module encapsulation film is an important part of crystalline silicon solar modules, which acts as a bonding glass and cell sheet and a cell sheet and a back sheet.
  • the traditional photovoltaic module encapsulation film is EVA film, but because EVA is easy to hydrolyze acetic acid under high temperature conditions, it has certain corrosiveness to the cell sheet, and the yellowing is severe under EVA aging, and more importantly, it has PID phenomenon.
  • the substrate of the polyolefin photovoltaic module encapsulant film is a polyolefin material, its chemical property is non-polar, so it has a very high barrier property against moisture, its heat resistance is better than EVA, and it does not hydrolyze acetic acid. It has a corrosive effect on the battery, and more importantly, it has no PID phenomenon.
  • the excellent characteristics of the polyolefin PV module encapsulation film are unmatched by the EVA PV module encapsulation film, but the commercially available polyolefin PV module encapsulation film has a slightly lower transmittance than the EVA PV module encapsulation film. , resulting in poor photoelectric conversion efficiency of the solar cell module, thereby limiting the packaging film of the polyolefin photovoltaic module Widely used.
  • the object of the present invention is to provide an antireflective polyolefin photovoltaic module encapsulant film and a preparation method thereof, which can improve the light transmission of a polyolefin photovoltaic module encapsulation film by adding a type of antireflection agent. Sexuality, thereby improving its photoelectric conversion efficiency in solar cell modules, and more satisfying the needs of solar cell modules.
  • the polyolefin has physical properties such that the melt index is from 15 to 35 g/10 min at 190 ° C and the melting temperature ranges from 40 to 80 ° C.
  • the anti-reflection modifier is a difunctional aliphatic urethane acrylate Ester prepolymer, difunctional epoxy acrylate prepolymer, difunctional polyester acrylate prepolymer, trifunctional polyether acrylate prepolymer, trifunctional aliphatic urethane acrylate Prepolymer, tetrafunctional polyester acrylate prepolymer, tetrafunctional epoxy acrylate prepolymer, tetrafunctional polyether acrylate prepolymer, hexafunctional aliphatic urethane acrylate pre One or a mixture of two or more of a polymer, a hexafunctional epoxy acrylate prepolymer.
  • the organic peroxide is 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane, 1,1-di-tert-butylperoxycyclohexane, and a tertiary One or a mixture of two or more of butyl peroxycarbonate, t-butylperoxy-3,5,5-trimethylhexyl ester, t-butylperoxycarbonate-2-ethylhexyl ester .
  • the crosslinking accelerator is p-ethylenediaminetetramethylenephosphonic acid, dipentaerythritol pentaacrylate, dibenzoylbenzoquinone dioxime, methyl methacrylate, ethylene glycol dimethacrylate.
  • Ester diethylene glycol dimethacrylate, tris(methacryloylmethyl)propane, diallyl phthalate, triallyl cyanurate, tetraallyloxy Alkane, diallyl maleate, trimethylolpropane trimethacrylate, 2-[[2,2-bis[[(1-oxo-2-propenyl)methyl]butoxy] One or a mixture of two or more of methyl]-2-ethyl-1,3-propanediyl-2-acrylate.
  • the silane coupling agent is ⁇ -aminopropyltriethoxysilane, ⁇ -glycidoxypropyltrimethoxysilane, ⁇ -(methacryloyloxy)propyltrimethoxysilane.
  • the plasticizer, the antioxidant, the ultraviolet light absorber, and the light stabilizer are both It is one or a mixture of two or more of the conventional types.
  • a method for preparing an antireflective polyolefin photovoltaic module encapsulant film comprising the steps of:
  • step 2) The raw materials weighed in step 1) are separately added to a high-speed mixer for pre-mixing to obtain a pre-mix; then the pre-mix is put into a single-screw casting machine for casting, thereby obtaining an encapsulating film.
  • the high speed mixer has a rotational speed of 800-1200 r/min and a mixing time of 20 min.
  • the control parameters of the single-screw casting machine are: the temperature range of each section of the barrel is: 40-80 ° C; the temperature of each section of the die is: 60-100 ° C; The temperature of the connector and the elbow are respectively: 60-100 ° C; the main engine speed is: 100-300 r / min; the embossing roller, the cooling roller, the traction, and the winding speed are: 1-5 m/min.
  • the present invention enhances the light transmission of a polyolefin photovoltaic module encapsulating film by adding an antireflective modifier of a reactive functional acrylate prepolymer.
  • Polyolefin is a semi-crystalline resin with a certain degree of crystallinity. And the higher the crystallinity, the worse the light transmittance.
  • the polyolefin of the present invention is a copolymer of ethylene and butene or octene having a regular and ordered non-polar structure, resulting in poor light transmission.
  • the PV module encapsulation film has high requirements on the permeability of the material. The reason for adding such a permeabilizing agent is that the antireflection agent has reactive functionality.
  • the invention relates to improving the light transmittance of a polyolefin photovoltaic module encapsulating film by adding a anti-reflecting agent, thereby improving the photoelectric conversion efficiency of the solar cell module and better meeting the demand of the solar cell module.
  • 1 is a graph showing the transmittance of the film 2 of the embodiment and a commercially available EVA and polyolefin film.
  • Fig. 1 represents a light transmittance curve of a commercially available EVA
  • 2 represents a light transmittance curve of the film 2 of the embodiment
  • 3 represents a light transmittance curve of the polyolefin film.
  • the antireflective polyolefin photovoltaic module encapsulating film (referred to as film 1) described in this embodiment is composed of the following components by weight:
  • the preparation method comprises the following steps: 100 parts of polyolefin, 0.3 part of tetrafunctional polyether acrylate prepolymer, 1.5 parts of 1,1-di-tert-butylperoxycyclohexane, and 0.7 parts of trishydroxyl Propane trimethacrylate, 0.1 parts of N-( ⁇ -aminoethyl)- ⁇ -aminopropyltrimethyl (ethoxy) silane, 0.9 parts of diisooctyl phthalate, 0.4 parts of 2 , 6-tertiary butyl-4-methylbenzene, 0.6 parts of 4-benzoyloxy-2,2,6,6-tetramethylpiperidine, 0.2 parts of N,N,-bis (2 , 2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine was added to a high-speed mixer for premixing for 20 min, and then the premix was put into a single screw casting machine. The determined process parameters are cast into the
  • the rotation speed of the high-speed mixer is 800-1200r/min;
  • the control parameters of the single-screw casting machine are: the temperature range of each section of the barrel is: 40-80 ° C; the temperature of each section of the die is: 60- 100 ° C; temperature change of the screen changer, connector, elbow: 60-100 ° C; main engine speed: 100-300r / min; embossing roller, cooling roller, traction, winding speed: 1-5m / Min.
  • the antireflective polyolefin photovoltaic module encapsulating film (referred to as film 2) described in this embodiment is composed of the following components by weight:
  • the preparation method comprises the following steps: 100 parts of polyolefin, 0.8 part of hexafunctional aliphatic urethane acrylate prepolymer, 0.8 parts of 1,1-di-tert-butylperoxy-3,3,5-trimethyl Cyclohexane, 1.2 parts of triallyl isocyanurate, 0.5 part of ⁇ -glycidoxypropyltrimethoxysilane, 1.1 parts of diisooctyl sebacate, 0.1 part of ⁇ - (3,5-di-tert-butyl-4-hydroxyphenyl)propanoic acid n-octadecyl alcohol ester, 0.2 parts of 2-(2'-hydroxy-3',5'-di-tert-phenyl)-5- Benzotriazole chloride, 0.3 parts of bis-2,2,6,6-tetramethylpiperidinate sebacate was added to a high speed mixer for premixing for 20 min, then the premix was put into
  • the antireflective polyolefin photovoltaic module encapsulating film (referred to as film 3) described in this embodiment is composed of the following components by weight:
  • the antireflective polyolefin photovoltaic module encapsulating film (referred to as film 4) described in this embodiment is composed of the following components by weight:
  • film 1 film 2
  • film 3 film 4
  • volume resistivity is tested according to GB/T1410 standard
  • the film was baked in a 121 ° C oven for 3 min, and then the longitudinal shrinkage was measured, and the average value and the maximum value were taken.
  • the uncrosslinked portion of the film was extracted with xylene, and the weight of the film before and after the extraction was weighed to indicate the degree of crosslinking.
  • Sample conditions extraction temperature 150 ° C, extraction time 8 h, drying temperature 140 ° C, drying time: 3 h.
  • the polyolefin photovoltaic module encapsulating film of the above Examples 1-4 and the commercially available EVA photovoltaic module encapsulating film were tested according to the above method, and the basic properties of the product are shown in Table 1 (the lamination process was: laminating temperature 140 ° C) , pumping for 6min, pressurizing for 1min, holding pressure for 10min).
  • the transmittance of the polyolefin photovoltaic module encapsulating film of the present invention is higher than that of a commercially available polyolefin photovoltaic module encapsulating film, and can reach a commercially available ethylene-vinyl acetate copolymer (EVA) photovoltaic module encapsulating film. Level.
  • EVA ethylene-vinyl acetate copolymer
  • Example film 1-4 conventional polyolefin photovoltaic module encapsulation film or commercially available EVA light
  • the volt component package film and protective glass, crystalline silicon cell, and backsheet were laminated into a module under an automatic laminator at 148 °C.
  • the components are composed of 6 ⁇ 10 polycrystalline silicon cells, and the battery is P-type polysilicon, and the size is 156mm ⁇ 156mm.
  • the power test was performed on the experimental components, and the test results are shown in Table 2. It can be seen from the table that the average power of the component composed of the antireflection modified polyolefin photovoltaic module encapsulant film is 250.26 W, which is 2.14 higher than the average power of the component composed of the commercially available polyolefin photovoltaic module encapsulation film of 248.12 W. W, which is 0.29 W higher than the average power of 249.97 W of a component consisting of a commercially available EVA photovoltaic module package film.

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Abstract

本发明公开了一种增透的聚烯烃光伏组件封装胶膜及其制备方法,由按重量份计的以下成分组成:聚烯烃100份、增透改性剂0.3-1.3份、有机过氧化物0.4-1.5份、交联促进剂0.3-1.2份、硅烷偶联剂0.1-1.0份、增塑剂0.2-1.1份、抗氧剂0.1-1.0份、紫外光吸收剂0.1-0.6份、光稳定剂0.1-0.6份,将其预混料投入到单螺杆流延机按设定好的工艺参数流延为胶膜。本发明通过添加一类增透剂来提高聚烯烃光伏组件封装胶膜的透光性,从而提高了它在太阳能电池组件的光电转换效率,更能满足太阳能电池组件的需求。

Description

一种增透的聚烯烃光伏组件封装胶膜及其制备方法 技术领域
本发明涉及一种封装胶膜,具体涉及一种增透的聚烯烃光伏组件封装胶膜及其制备方法,属于太阳能电池组件封装胶膜领域。
背景技术
传统的晶硅太阳能组件结构为保护玻璃/光伏组件封装胶膜/晶硅电池片/光伏组件封装胶膜/背板的五层结构。光伏组件封装胶膜是晶硅太阳能组件的重要组成部分,起着粘接保护玻璃与电池片及电池片与背板的作用。传统的光伏组件封装胶膜为EVA胶膜,但由于EVA在高温条件下容易水解出醋酸,对电池片有一定的腐蚀性,而且EVA老化下黄变性严重,更主要是它存在PID现象。
随着人们对清洁能源的重视,光伏行业得到了快速发展,人们对光伏组件封装胶膜也提出了更高的性能要求,于是新一代的聚烯烃光伏组件封装胶膜应运而生。由于聚烯烃光伏组件封装胶膜的基材为聚烯烃材料,它的化学性质为非极性,因此具有对水汽极高的阻隔性能,它的耐热性比EVA好,且不会水解出醋酸对电池片有腐蚀影响,更重要的是它没有PID现象。总的来说,聚烯烃光伏组件封装胶膜部分优良特性是EVA光伏组件封装胶膜无法比拟的,但市面流通的聚烯烃光伏组件封装胶膜比EVA光伏组件封装胶膜的透光率稍低,导致太阳能电池组件的光电转化效率欠佳,从而限制了聚烯烃光伏组件封装胶膜 的广泛使用。
发明内容
为克服现有技术的缺陷,本发明的目的在于提供一种增透的聚烯烃光伏组件封装胶膜及其制备方法,通过添加一类增透剂来提高聚烯烃光伏组件封装胶膜的透光性,从而提高了它在太阳能电池组件的光电转换效率,更能满足太阳能电池组件的需求。
实现本发明的目的可以通过采取如下技术方案达到:
一种增透的聚烯烃光伏组件封装胶膜,其特征在于,由按重量份计的以下成分组成:
Figure PCTCN2015097440-appb-000001
作为优选,所述的聚烯烃的物理特性为:在190℃条件下,熔融指数为15-35g/10min,熔融温度范围为40-80℃。
作为优选,所述的增透改性剂为双官能度的脂肪族聚氨酯丙烯酸 酯预聚物、双官能度的环氧丙烯酸酯预聚物、双官能度的聚酯丙烯酸酯预聚物、三官能度的聚醚丙烯酸酯预聚物、三官能度的脂肪族聚氨酯丙烯酸酯预聚物、四官能度的聚酯丙烯酸酯预聚物、四官能度的环氧丙烯酸酯预聚物、四官能度的聚醚丙烯酸酯预聚物、六官能度的脂肪族聚氨酯丙烯酸酯预聚物、六官能度的环氧丙烯酸酯预聚物中的一种或两种以上的混合物。
作为优选,所述的有机过氧化物为1,1-二叔丁基过氧化-3,3,5-三甲基环己烷、1,1-二叔丁基过氧化环己烷、叔丁基过氧化碳酸异丙酯、叔丁基过氧化-3,5,5-三甲基己酯、叔丁基过氧化碳酸-2-乙基己酯中的一种或两种以上的混合物。
作为优选,所述的交联促进剂为对乙二胺四亚甲基膦酸、二季戊四醇五丙烯酸酯、二苯甲酰苯醌二肟、甲基丙烯酸甲酯、二甲基丙烯酸乙二醇酯、双甲基丙烯酸二缩三乙二醇酯、三(甲基丙烯酰基次甲基)丙烷、邻苯二甲酸二烯丙酯、三烯丙基氰尿酸酯、四烯丙氧基乙烷、马来酸二烯丙酯、三羟甲基丙烷三甲基丙烯酸酯、2-[[2,2-双[[(1-氧代-2-丙烯基]甲基]丁氧基]甲基]-2-乙基-1,3-丙烷二基-2-丙烯酸酯中的一种或两种以上的混合物。
作为优选,所述的硅烷偶联剂为γ-氨丙基三乙氧基硅烷、γ-缩水甘油醚氧丙基三甲氧基硅烷、γ-(甲基丙烯酰氧)丙基三甲氧基硅烷、N-(β-氨乙基)-γ-氨丙基三甲(乙)氧基硅烷中的一种或两种以上的混合物。
作为优选,所述的增塑剂,抗氧剂,紫外光吸收剂,光稳定剂都 为常规种类中的一种或两种以上的混合物。
一种增透的聚烯烃光伏组件封装胶膜的制备方法,其特征在于,包括以下步骤:
1)按照配方配比分别称取聚烯烃、增透改性剂、有机过氧化物、交联促进剂、硅烷偶联剂、增塑剂、抗氧剂、紫外光吸收剂、光稳定剂添,待用;
2)将步骤1)所称取的原料分别添加到高速混料机中进行预混合,得到预混料;然后将预混料投入到单螺杆流延机进行流延,即得到封装胶膜。
作为优选,在步骤2)中,所述高速混料机的转速为800-1200r/min,混合时间为20min。
作为优选,在步骤2)中,所述单螺杆流延机的控制参数为:料筒各段温度范围为:40-80℃;模头各段温度分别为:60-100℃;换网器、连接器、弯头的温度分别为:60-100℃;主机转速为:100-300r/min;压花辊、冷却辊、牵引、收卷转速为:1-5m/min。
本发明的有益效果在于:
本发明通过添加一类具有活性官能度的丙烯酸酯预聚物的增透改性剂,来提高聚烯烃光伏组件封装胶膜的透光性。聚烯烃属于半结晶性树脂,具有一定的结晶度。并且结晶度越高,透光性就越差。本发明涉及的聚烯烃为乙烯与丁烯或辛烯的共聚物,它具有规整有序的非极性结构,导致了它的透光性不好。而光伏组件封装胶膜对材料的透过性要求很高,添加这类增透剂的原由为增透剂具有反应性官能度 的,能参与胶膜的化学交联反应,打破聚烯烃的结晶有序结构,增加了交联密度,同时也增加了胶膜的交联度,从而在根本上提高了聚烯烃光伏组件封装胶膜的透光率。本发明涉及通过添加增透剂来提高聚烯烃光伏组件封装胶膜的透光性,从而提高了它在太阳能电池组件的光电转换效率,更能满足太阳能电池组件的需求。
附图说明
图1为实施例胶膜2及市售EVA、聚烯烃胶膜的透光率曲线图。
图1中,1代表市售EVA的透光率曲线,2代表实施例胶膜2的透光率曲线,3代表聚烯烃胶膜的透光率曲线。
具体实施方式
下面通过具体实施例和较佳实施例对本发明作进一步的详细说明,但本发明并不局限于以下的实施例。
实施例1:
本实施例所述的增透的聚烯烃光伏组件封装胶膜(简称为胶膜1),由按重量份计的以下成分组成:
Figure PCTCN2015097440-appb-000002
Figure PCTCN2015097440-appb-000003
其制备方法为:将100份的聚烯烃、0.3份的四官能度的聚醚丙烯酸酯预聚物、1.5份的1,1-二叔丁基过氧化环己烷、0.7份的三羟甲基丙烷三甲基丙烯酸酯、0.1份的N-(β-氨乙基)-γ-氨丙基三甲(乙)氧基硅烷、0.9份的邻苯二甲酸二异辛酯、0.4份的2,6-三级丁基-4-甲基苯、0.6份的4-苯甲酰氧基-2,2,6,6-四甲基哌啶、0.2份的N,N,-双(2,2,6,6-四甲基-4-哌啶基)-1,6-己二胺添加到高速混料机进行预混合20min,然后将预混料投入到单螺杆流延机按设定好的工艺参数流延为胶膜1。
所述高速混料机的转速为800-1200r/min;所述单螺杆流延机的控制参数为:料筒各段温度范围为:40-80℃;模头各段温度分别为:60-100℃;换网器、连接器、弯头的温度分别为:60-100℃;主机转速为:100-300r/min;压花辊、冷却辊、牵引、收卷转速为:1-5m/min。
实施例2:
本实施例所述的增透的聚烯烃光伏组件封装胶膜(简称为胶膜2),由按重量份计的以下成分组成:
Figure PCTCN2015097440-appb-000004
Figure PCTCN2015097440-appb-000005
其制备方法为:将100份的聚烯烃、0.8份的六官能度的脂肪族聚氨酯丙烯酸酯预聚物、0.8份的1,1-二叔丁基过氧化-3,3,5-三甲基环己烷、1.2份的三烯丙基异氰脲酸酯、0.5份的γ-缩水甘油醚氧丙基三甲氧基硅烷、1.1份的癸二酸二异辛酯、0.1份的β-(3,5-二叔丁基-4-羟基苯基)丙酸正十八碳醇酯、0.2份的2-(2’-羟基-3’,5’-二叔苯基)-5-氯化苯并三唑、0.3份的癸二酸双-2,2,6,6-四甲基哌啶醇酯添加到高速混料机进行预混合20min,然后将预混料投入到单螺杆流延机按设定好的工艺参数(与实施例1相同)流延为胶膜2。
实施例3:
本实施例所述的增透的聚烯烃光伏组件封装胶膜(简称为胶膜3),由按重量份计的以下成分组成:
Figure PCTCN2015097440-appb-000006
Figure PCTCN2015097440-appb-000007
其制备方法为:将100份的聚烯烃、1.3份的四官能度的聚酯丙烯酸酯预聚物、0.4份的叔丁基过氧化碳酸异丙酯、0.9份的三羟甲基丙烷三甲基丙烯酸酯、1.0份的γ-(甲基丙烯酰氧)丙基三甲氧基硅烷、0.2份的邻苯二甲酸二辛酯、0.6份的双(2.4-二叔丁基苯基)季戊四醇二亚磷酸酯、0.3份的2-羟基-4-正辛氧基二苯甲酮、0.1份的双(2,2,6,6-四甲基-4-哌啶基)癸二酸酯添加到高速混料机进行预混合20min,然后将预混料投入到单螺杆流延机按设定好的工艺参数(与实施例1相同)流延为胶膜3。
实施例4:
本实施例所述的增透的聚烯烃光伏组件封装胶膜(简称为胶膜4),由按重量份计的以下成分组成:
Figure PCTCN2015097440-appb-000008
Figure PCTCN2015097440-appb-000009
其制备方法为:将100份的聚烯烃、1.0份的双官能度的环氧丙烯酸酯预聚物、1.1份的1,1-二叔丁基过氧化-3,3,5-三甲基环己烷、0.3份的二甲基丙烯酸乙二醇酯、0.7份的γ-缩水甘油醚氧丙基三甲氧基硅烷、0.5份的己二酸二辛酯、1.0份的2,6-三级丁基-4-甲基苯酚、0.1份的2,4-二羟基二苯甲酮、0.6份的N,N,-双(2,2,6,6-四甲基-4-哌啶基)-1,6-己二胺添加到高速混料机进行预混合20min,然后将预混料投入到单螺杆流延机按设定好的工艺参数(与实施例1相同)流延为胶膜4。
其中,胶膜1,胶膜2,胶膜3,胶膜4的性能测试方法为:
1.透光率根据GB/T2410标准进行试验;
2.耐湿热性能根据GB2409标准进行试验;
3.体积电阻率根据GB/T1410标准进行试验;
4.剥离强度根据GB/T2790标准进行试验;
5.收缩率根据Q/LSXC2标准进行试验:
把胶膜放入121℃烘箱里烘3min,然后测其纵向收缩率,取其平均值,及最大值。
6.交联度根据Q/LSXC2标准进行试验:
用二甲苯萃取胶膜中未交联部分,称量萃取前后胶膜的重量,来表示其交联度。试样条件:萃取温度150℃,萃取时间8h,烘干温度140℃,烘干时间:3h。
将上述实施例1-4的聚烯烃光伏组件封装胶膜及市售EVA光伏组件封装胶膜,按上述方法进行测试,产品基本性能如表1所示(层压工艺为:层压温度140℃,抽气6min,加压1min,保压10min)。
表1性能测试结果对比表
Figure PCTCN2015097440-appb-000010
参照图1,本发明的聚烯烃光伏组件封装胶膜的透光率比市售聚烯烃光伏组件封装胶膜高,能达到市售乙烯-醋酸乙烯酯共聚物(EVA)光伏组件封装胶膜的水平。
把实施例胶膜1-4、常规聚烯烃光伏组件封装胶膜或市售EVA光 伏组件封装胶膜与保护玻璃,晶硅电池片,背板在148℃自动层压机下层压成组件。其中组件由6×10片多晶硅电池片组成,电池片为P型多晶硅,尺寸为156mm×156mm规格。
对实验组件进行功率测试,测试结果如表2所示。由表可知,由增透改性后的聚烯烃光伏组件封装胶膜组成的组件的平均功率为250.26W,比由市售聚烯烃光伏组件封装胶膜组成的组件的平均功率248.12W高出2.14W,比由市售EVA光伏组件封装胶膜组成的组件的平均功率249.97W高出0.29W。
表2组件功率测试结果对比表
Figure PCTCN2015097440-appb-000011
对于本领域的技术人员来说,可根据以上描述的技术方案以及构思,做出其它各种相应的改变以及变形,而所有的这些改变以及变形都应该属于本发明权利要求的保护范围之内。

Claims (9)

  1. 一种增透的聚烯烃光伏组件封装胶膜,其特征在于,由按重量份计的以下成分组成:
    Figure PCTCN2015097440-appb-100001
  2. 根据权利要求1所述的增透的聚烯烃光伏组件封装胶膜,其特征在于:所述的聚烯烃的物理特性为:在190℃条件下,熔融指数为15-35g/10min,熔融温度范围为40-80℃。
  3. 根据权利要求1所述的增透的聚烯烃光伏组件封装胶膜,其特征在于:所述的增透改性剂为双官能度的脂肪族聚氨酯丙烯酸酯预聚物、双官能度的环氧丙烯酸酯预聚物、双官能度的聚酯丙烯酸酯预聚物、三官能度的聚醚丙烯酸酯预聚物、三官能度的脂肪族聚氨酯丙烯酸酯预聚物、四官能度的聚酯丙烯酸酯预聚物、四官能度的环氧丙烯酸酯预聚物、四官能度的聚醚丙烯酸酯预聚物、六官能度的脂肪族聚氨酯丙烯酸酯预聚物、六官能度的环氧丙烯酸酯预聚物中的一种或两种以上的混合物。
  4. 根据权利要求1所述的增透的聚烯烃光伏组件封装胶膜,其特征在于:所述的有机过氧化物为1,1-二叔丁基过氧化-3,3,5-三甲基环己烷、1,1-二叔丁基过氧化环己烷、叔丁基过氧化碳酸异丙酯、叔丁基过氧化-3,5,5-三甲基己酯、叔丁基过氧化碳酸-2-乙基己酯中的一种或两种以上的混合物。
  5. 根据权利要求1所述的增透的聚烯烃光伏组件封装胶膜,其特征在于:所述的交联促进剂为对乙二胺四亚甲基膦酸、二季戊四醇五丙烯酸酯、二苯甲酰苯醌二肟、甲基丙烯酸甲酯、二甲基丙烯酸乙二醇酯、双甲基丙烯酸二缩三乙二醇酯、三(甲基丙烯酰基次甲基)丙烷、邻苯二甲酸二烯丙酯、三烯丙基氰尿酸酯、四烯丙氧基乙烷、马来酸二烯丙酯、三羟甲基丙烷三甲基丙烯酸酯、2-[[2,2-双[[(1-氧代-2-丙烯基]甲基]丁氧基]甲基]-2-乙基-1,3-丙烷二基-2-丙烯酸酯中的一种或两种以上的混合物。
  6. 根据权利要求1所述的增透的聚烯烃光伏组件封装胶膜,其特征在于:所述的硅烷偶联剂为γ-氨丙基三乙氧基硅烷、γ-缩水甘油醚氧丙基三甲氧基硅烷、γ-(甲基丙烯酰氧)丙基三甲氧基硅烷、N-(β-氨乙基)-γ-氨丙基三甲(乙)氧基硅烷中的一种或两种以上的混合物。
  7. 一种根据权利要求1-6中任意一项所述的增透的聚烯烃光伏组件封装胶膜的制备方法,其特征在于,包括以下步骤:
    1)按照配方配比分别称取聚烯烃、增透改性剂、有机过氧化物、交联促进剂、硅烷偶联剂、增塑剂、抗氧剂、紫外光吸收剂、光稳定 剂添,待用;
    2)将步骤1)所称取的原料分别添加到高速混料机中进行预混合,得到预混料;然后将预混料投入到单螺杆流延机进行流延,即得到封装胶膜。
  8. 根据权利要求7所述的增透的聚烯烃光伏组件封装胶膜的制备方法,其特征在于:在步骤2)中,所述高速混料机的转速为800-1200r/min,混合时间为20min。
  9. 根据权利要求7所述的增透的聚烯烃光伏组件封装胶膜的制备方法,其特征在于:在步骤2)中,所述单螺杆流延机的控制参数为:料筒各段温度范围为:40-80℃;模头各段温度分别为:60-100℃;换网器、连接器、弯头的温度分别为:60-100℃;主机转速为:100-300r/min;压花辊、冷却辊、牵引、收卷转速为:1-5m/min。
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