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    • 4. 发明专利
    • Solar cell encapsulant and solar cell module
    • 空值
    • JP5483646B2
    • 2014-05-07
    • JP2012541740
    • 2011-10-31
    • 三井化学株式会社三井化学東セロ株式会社
    • 成伸 池永文人 竹内啓二 渡辺智章 伊藤
    • H01L31/042C08F210/16C08L23/08
    • H01L31/0481C08F210/16C08K5/14C08K5/5425C08L23/0815C08L2023/40C08L2023/42C08L2203/204C08L2205/025C09D123/0815Y02E10/50C08F210/08C08F2500/08C08F2500/12C08F2500/26C08F210/14
    • The present invention is to provide an encapsulating material for solar cell excellent in a balance among general properties such as transparency, flexibility, adhesiveness, heat resistance, appearance, crosslinking properties, electrical properties and calender moldability. To achieve the above object, the encapsulating material for solar cell comprising an ethylene/±-olefin copolymer satisfying the following requirements (a1) to (a4): Disclosed is an encapsulating material for solar cell containing an ethylene/±-olefin copolymer satisfying the following requirements (a1) to (a4): (a1) the content ratio of structural units derived from ethylene is from 80 to 90 mol% and the content ratio of structural units derived from ±-olefin having 3 to 20 carbon atoms is from 10 to 20 mol%; (a2) MFR is equal to or more than 2 g/10 minutes and less than 10 g/10 minutes as measured under the conditions of a temperature of 190 degrees centigrade and a load of 2.16 kg in accordance with ASTM D1238; (a3) the density is from 0.865 to 0.884 g/cm 3 as measured in accordance with ASTM D1505; and (a4) the shore A hardness is from 60 to 85 as measured in accordance with ASTM D2240.
    • 本发明提供一种太阳能电池用封装材料,其透明性,柔软性,粘合性,耐热性,外观,交联性,电性能和砑光成型性等一般性能之间的平衡优异。 为了实现上述目的,包含满足以下要求(a1)至(a4)的乙烯/α-烯烃共聚物的太阳能电池用封装材料:公开了一种含有满足下述条件的乙烯/α-烯烃共聚物的太阳能电池用封装材料: 以下要求(a1)〜(a4):(a1)来自乙烯的结构单元的含有比例为80〜90摩尔%,来自碳原子数为3〜20的α-烯烃的结构单元的含有比例为10 至20mol%; (a2)根据ASTM D1238在190℃的温度和2.16kg的负荷条件下测量的MFR等于或大于2g / 10分钟且小于10g / 10分钟; (a3)根据ASTM D1505测量的密度为0.865至0.884g / cm 3; 和(a4)根据ASTM D2240测量的肖氏A硬度为60至85。