| 摘要 |
PROBLEM TO BE SOLVED: To provide a thin polyacrylonitrile (PAN)-based carbon fiber sheet including the fiber dispersed well, and having little unevenness in thickness, good post processability and high strength. SOLUTION: The PAN-based carbon fiber sheet comprises homogeneously dispersed carbon fiber A having 8.0-15.0μm fiber diameter C<SB>A</SB>and carbon fiber B having a fiber diameter C<SB>B</SB>satisfying the formula 1: 0.40<C<SB>B</SB>/C<SB>A</SB><0.80. The content of the carbon fiber B is 4-25 mass%, and the content of the total of the carbon fiber A and the carbon fiber B is≥95 mass%. The carbon fiber sheet has 0.1-0.5 mm thickness and≥7 N/cm tensile strength. COPYRIGHT: (C)2004,JPO&NCIPI
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