发明名称 |
POLYACRYLONITRILE-BASED OXIDIZED FIBER NONWOVEN FABRIC AND CARBON FIBER NONWOVEN FABRIC AND METHOD FOR PRODUCING CARBON FIBER NONWOVEN FABRIC |
摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a polyacrylonitrile (PAN)-based carbon fiber nonwoven fabric as a useful raw material for a carbon fiber material such as an electrode material for a polymer fuel cell, and to provide a method for producing a PAN-based oxidized fiber nonwoven fabric of an intermediate material for the carbon fiber nonwoven fabric. SOLUTION: The PAN-based oxidized fiber nonwoven fabric is produced by processing an oxidized fiber having a specific gravity of S<SB>1</SB>and an oxidized fiber having a specific gravity of S<SB>2</SB>to obtain a nonwoven fabric, wherein the specific gravity S<SB>1</SB>and the specific gravity S<SB>2</SB>satisfy relations 1.25≤S<SB>1</SB>≤0.50×S<SB>2</SB>+0.64 and 1.35≤S<SB>2</SB>≤1.42 and the oxidized fiber nonwoven fabric is carbonized to produce a PAN-based carbon fiber nonwoven fabric having 10-140 g/m<SP>2</SP>basis weight and≤3.5 mΩelectrical resistance. COPYRIGHT: (C)2003,JPO
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申请公布号 |
JP2003213555(A) |
申请公布日期 |
2003.07.30 |
申请号 |
JP20020002134 |
申请日期 |
2002.01.09 |
申请人 |
TOHO TENAX CO LTD |
发明人 |
SHIMAZAKI KENJI;TANAKA SHINTARO;TAKAMI YUSUKE |
分类号 |
D04H1/4242;D04H1/43;(IPC1-7):D04H1/42 |
主分类号 |
D04H1/4242 |
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