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    • 15. 发明申请
    • Double Initiated Fast Crosslinking EVA Adhesive Film
    • 双发快速交联EVA粘合膜
    • US20160272852A1
    • 2016-09-22
    • US14777689
    • 2014-08-07
    • HANGZHOU FIRST PV MATERIAL CO.LTD.
    • Ping JIN
    • C09J123/08H01L31/048
    • C09J123/08C08K5/3435C08K5/357C08K5/541C08K5/5425C09J7/00C09J7/10C09J2203/322C09J2423/04C09J2431/00H01L31/0481Y02E10/50
    • The invention provides a dual-initiated and fast cross-linked EVA (ethylene/vinyl acetate copolymer) film for the encapsulation of solar modules, which greatly enhances the speed of the encapsulation. The EVA film is mainly prepared from the following raw materials: 100 parts by mass of ethylene/vinyl acetate copolymer, 0.01 to 1.5 parts by mass of a free-radical photoinitiator, 0.01 to 1.5 parts by mass of a free-radical thermal initiator, 0.5 to 10 parts by mass of an auxiliary cross-linking agent, 0.1 to 5 parts by mass of a tackifier and 0.01 to 5 parts by mass of a light stabilizer. The present invention adds photothermal dual-initiated free-radical initiators and the auxiliary cross-linking agent of multi-functional acrylates or methacrylates to the EVA and use a thermal-UV dual curing process to prepare the solar module. The curing time is shorten to 5 to 10 min and the yield is high; meanwhile, the EVA film has advantages of uniform curing, high crosslink density, high bonding strength between the film and glass, and good anti-aging property.
    • 本发明提供了一种用于封装太阳能模块的双重引发和快速交联的EVA(乙烯/乙酸乙烯酯共聚物)膜,这极大地提高了封装的速度。 EVA膜主要由以下原料制备:100质量份乙烯/乙酸乙烯酯共聚物,0.01〜1.5质量份自由基光引发剂,0.01〜1.5质量份自由基热引发剂, 辅助交联剂0.5〜10质量份,增粘剂0.1〜5质量份,光稳定剂0.01〜5质量份。 本发明将光热双引发自由基引发剂和多官能丙烯酸酯或甲基丙烯酸酯的辅助交联剂加入到EVA中,并使用热UV双固化方法来制备太阳能模块。 固化时间缩短5〜10 min,产率高; 同时,EVA膜具有固化均匀,交联密度高,膜与玻璃之间粘接强度高,抗老化性好的优点。