公开(公告)号：US20030035898A1

公开(公告)日：2003-02-20

申请号：US10214730

申请日：2002-08-09

申请人： Ausimont S.p.A.

发明人： Aldo Sanguineti ,  Andrea Perego

IPC分类号： B05D003/02

CPC分类号： B01D67/0093 ,  B01D69/10 ,  B01D69/12 ,  B01D71/32 ,  B01D2323/30 ,  C08J5/2237 ,  C08J2327/18 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1058 ,  H01M8/1062 ,  H01M8/1072 ,  H01M8/1081 ,  H01M8/1088 ,  Y02P70/56

摘要： An impregnation process of a porous support, comprising the following steps: 1) preparation of an aqueous colloidal dispersion of thermoplastic (per)fluorinated polymers; 2) a) concentration or dilution of the dispersion obtained in 1); b) optional surfactant, addition to obtain a dispersion having a surface tension lower than 40 mN/m; 3) porous support impregnation with the latex obtained in 2b); 4) thermal treatment at a temperature of 20null C. higher than the glass transition temperature of the thermoplastic polymer and lower than 200null C.; 5) a) if the ionomer has equivalent weight lower than 650 g/eq, ionomer crosslinking, b) conversion of the functional groups into the corresponding salts; 6) optional treatment of the membrane at room temperature in an acid aqueous solution of a strong inorganic acid and subsequent washings with deionized water.

摘要翻译： 多孔载体的浸渍方法，包括以下步骤：1）制备热塑性（全）氟化聚合物的水性胶态分散体; 2）a）在1）中得到的分散体的浓度或稀释度; b）任选的表面活性剂，加入以获得表面张力低于40mN / m的分散体; 3）在2b）中获得的胶乳的多孔载体浸渍; 4）在比热塑性聚合物的玻璃化转变温度高20℃的温度下进行热处理并低于200℃。 5）a）如果离聚物具有低于650g / eq的当量，离聚物交联，b）将官能团转化成相应的盐; 6）室温下在强无机酸的酸性水溶液中任选处理膜，随后用去离子水洗涤。