HIGHLY CONDUCTIVE MOLDING COMPOUNDS AND FUEL CELL BIPOLAR PLATES COMPRISING THESE COMPOUNDS
    87.
    发明授权
    HIGHLY CONDUCTIVE MOLDING COMPOUNDS AND FUEL CELL BIPOLAR PLATES COMPRISING THESE COMPOUNDS 有权
    高导的成型材料和双极板用于燃料电池在这些模塑化合物

    公开(公告)号:EP1171925B1

    公开(公告)日:2010-07-07

    申请号:EP00919431.7

    申请日:2000-03-17

    发明人: BUTLER, Kurt, I.

    摘要: A conductive polymer is disclosed which is suitable for use in applications which require corrosion resistance including resistance to corrosion when subjected to acidic flow at temperature ranging from -40 to 140 degrees Fahrenheit and which can be molded into highly intricate and thin specimens which exhibit consistent conductivity, sufficient strength and flexibility, and appropriate surface characteristics. In particular the invention involves molding unsaturated prepolymer resin composition, which have high loadings of conductive fillers. Further to enable the necessary characteristics, the compositions include rheological modifiers such as Group II oxides and hydroxides; carbodiamides; aziridines; polyisocyanates; polytetrafluoroethylene (PTFE); perfluoropolyether (PFPE), and polyethylene. Ostensibly, these modifiers act to alter the apparent molecular weight and three dimensional prepolymer network structures correcting rheological deficiencies which otherwise lead to excessive resin particulate separation during the molding process and large variances in bulk conductivity across the plate surface. The composition is disclosed for use in electrochemical cells, such as fuel cells.

    摘要翻译: 导电性高分子是圆盘游离缺失所有其适合于使用在要求耐蚀性包括耐腐蚀性当在温度范围从-40到140华氏度并且经受酸性流的应用程序可以被模制到高度复杂的和薄的试样表现出一致的导电性 ,足够的强度和柔韧性,以及适当的表面特性。 特别是本发明包括具有哪个导电填料的高负载不饱和成型预聚物树脂组合物。 此外,以使所需的特性,所述组合物包括流变改性:如第II族的氧化物和氢氧化物; carbodiamides; 氮丙啶; 聚异氰酸酯; 聚四氟乙烯(PTFE); 全氟聚醚(PFPE),和聚乙烯。 表面上,论文改性剂起作用来改变表观分子量和三维预聚物的网络结构的流变学校正缺陷在横跨板表面体积电导率在模制过程和大方差,在此期间以其它方式导致过度的树脂微粒的分离。 该组合物是游离缺失盘用于电化学电池,:如燃料电池。