| 摘要 |
PROBLEM TO BE SOLVED: To obtain a carbon fiber felt having high fire resistance. SOLUTION: In the carbon fiber felt constituted of a carbon fiber assembly bonded with a binder resin, an anisotropic pitch-based carbon fiber is used as the carbon fiber to improve fire resistance. The carbon fiber may be composed of an extra fine carbon fiber having about 0.3-20μm (especially 0.5-5μm) average fiber diameter and about 0.5-20μm (especially 1-15μm) average fiber length. The bulk density of the carbon fiber felt may be 0.1-30 kg/m<SP>3</SP>(especially 1-30 kg/m<SP>3</SP>). The binder resin may be constituted of a thermosetting resin (e.g. phenol-based resin). COPYRIGHT: (C)2004,JPO
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