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公开(公告)号:US08133927B2
公开(公告)日:2012-03-13
申请号:US11375593
申请日:2006-03-15
IPC分类号: C08J5/20
CPC分类号: B01D71/32 , B01D67/0013 , B01D69/10 , B01D69/141 , B01D2323/08 , B01D2323/46 , B01D2325/28 , C08J5/2281 , C08J2327/18
摘要: A composite ionomeric membrane comprising a layer or film of a porous inert material on which a (per) fluorinated sulphonic ionomer is deposited wherein the sulphonic groups are at the end of short side chains (SSC), said ionomer having: equivalent weight comprised between 280 and 1,700 g/eq; side chains of formula: —O—CF2—CF2—SO3—M+, wherein M is hydrogen or an alkaline metal; said membrane having in each of the two orthogonal directions xy of the plane, after dipping in demineralized water at 100° C. for 30 minutes and preliminary drying at 105° C. under vacuum for one hour, the following size variations: in one direction, size variation lower than 25%; in the other direction, size variation lower than 20%.
摘要翻译: 一种复合离聚物膜,其包含多孔惰性材料的层或膜,在其上沉积(全)氟化磺酸离聚物,其中所述磺基位于短侧链(SSC)的末端,所述离聚物具有:当量重量在280 和1,700g / eq; 式-O-CF2-CF2-SO3-M +的侧链,其中M为氢或碱金属; 所述膜在平面的两个正交方向xy中的每一个中,在100℃的软化水中浸渍30分钟,并在105℃下在真空下预干燥1小时,以下尺寸变化:在一个方向上 ,尺寸变化低于25%; 在另一个方向,尺寸变化低于20%。
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公开(公告)号:US20110052798A1
公开(公告)日:2011-03-03
申请号:US12890473
申请日:2010-09-24
CPC分类号: B01D71/82 , B01D67/0006 , B01D71/32 , B01D2323/24 , B01D2325/10 , H01M4/921 , H01M8/1004 , H01M8/1011 , H01M8/1023 , H01M8/1039 , H01M8/1081 , H01M8/109 , Y02E60/523 , Y02P70/56 , Y10T428/24372
摘要: CCM formed of a membrane having on one of the two surfaces a first electrocatalytic layer containing a catalyst and on the other one a second electrocatalytic layer containing a catalyst, said electrocatalytic layers and said membrane containing (per)fluorinated ionomers, said CCM having the following characteristics: size variations, for both the orthogonal directions of the plane xy, lower than 15%, by dipping the CCM, after drying at 105° C. under vacuum for one hour in demineralized water at 100° C. for 30 minutes; the CCM remains substantially unchanged after having been subjected to treatments of 60 cycles by dipping in water at 80° C. for 8 hours and then in water at the temperature of 25° C. for 16 hours.
摘要翻译: CCM由具有在两个表面中的一个表面上的含有催化剂的第一电催化剂层和另一个包含催化剂的第二电催化剂层,所述电催化层和所述膜含有(全)氟化离聚物,所述CCM具有以下 特性:在105℃下在100℃下在软化水中真空干燥1小时30分钟后,通过浸渍CCM,平面xy的正交方向,低于15%的尺寸变化,小于15% 在经过80℃的水中浸渍8小时,然后在25℃的水中浸渍16小时后,经过60个循环的处理后,CCM基本上保持不变。
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