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公开(公告)号:WO2004085728A1
公开(公告)日:2004-10-07
申请号:PCT/JP2004/004158
申请日:2004-03-25
IPC: D04H1/42
CPC classification number: C04B35/83 , C04B38/0022 , C04B2111/00853 , C04B2201/20 , C04B2235/424 , C04B2235/425 , C04B2235/48 , C04B2235/526 , C04B2235/5264 , C04B2235/5436 , C04B2235/77 , C04B2235/94 , C04B2235/96 , D21H13/50 , H01M4/8605 , H01M4/92 , H01M4/926 , H01M8/0234 , H01M8/1004 , Y10T428/2918 , Y10T428/2982 , Y10T428/30 , C04B38/0054
Abstract: A porous carbon base material, which comprises a sheet containing carbon short fibers dispersed randomly and a carbonized resin, wherein the carbon short fibers are bound by the carbonized resin and the volume of pores having a pore diameter of 10 mum or less is 0.05 to 0.16 cc/g; and a method for producing the porous carbon base material, which comprises transporting a precursor fiber sheet comprising carbon short fibers dispersed randomly and a resin intermittently to a space between heated plates, subjecting the precursor to a heating and pressuring treatment by the heated plates while the transformation stops, carrying out the transportation of the sheet after the treatment, and then carrying out a heat treatment, to thereby carbonize the resin in the sheet.
Abstract translation: 一种多孔碳基材料,其包含含有随机分散的碳短纤维的片材和碳化树脂,其中碳短纤维被碳化树脂结合,孔径为10μm或更小的孔的体积为0.05至0.16 立方厘米/克; 以及多孔碳基材的制造方法,其特征在于,将包含随机分散的碳短纤维的前体纤维片和树脂间歇地输送到加热板之间的空间,对所述前体进行加热和加热处理,同时 转变停止,在处理后进行片材的输送,然后进行热处理,从而将片材中的树脂碳化。
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公开(公告)号:WO2004031465A1
公开(公告)日:2004-04-15
申请号:PCT/JP2003/012231
申请日:2003-09-25
IPC: D04H1/42
CPC classification number: H01M8/0234 , D04H1/4242 , D04H1/4291 , H01M4/8605 , H01M8/0239 , H01M8/1004 , Y02P70/56 , Y10T442/643 , Y10T442/696
Abstract: A nonwoven fabric comprising a flame-retardant acrylic fiber, characterized in that it has a weight per square-meter of 70 to 190 g/m , a thickness of 0.1 to 0.3 mm, a density of 0.35 to 0.8 g/cm ; and a nonwoven fabric comprising a carbon fiber, characterized in that it has a weight per square-meter of 50 to 150 g/m , a thickness of 0.1 to 0.25 mm, a density of 0.3 to 0.7 g/m , a surface roughness Ra of 30 mum or less, a tensile strength of 0.2 kgf/cm or more, and a maximum fracture radius being defined in the specification of 20 mm or less. Said carbon fiber nonwoven fabric is produced by subjecting the above flame-retardant acrylic fiber to a carbonization treatment and can be suitably used as a material for forming an electrode of a fuel cell.
Abstract translation: 一种包含阻燃丙烯酸纤维的无纺织物,其特征在于,其每平方米重量为70至190g / m 2,厚度为0.1至0.3mm,密度为0.35至0.8g / cm <3>; 以及包含碳纤维的无纺布,其特征在于,每平方米重量为50〜150g / m 2,厚度为0.1〜0.25mm,密度为0.3〜0.7g / m 3 >表面粗糙度Ra为30μm以下,拉伸强度为0.2kgf / cm以上,最大断裂半径在规定中为20mm以下。 所述碳纤维无纺布是通过对上述阻燃丙烯酸纤维进行碳化处理而制成的,可以适合用作形成燃料电池的电极的材料。
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