| 摘要 |
PURPOSE:To obtain a fiber for reinforced composite material such as fiber- reinforced metal by attaching heat-resistant fine particles, etc., to the surface of a continuous carbon inorganic fiber derived from a silicon-containing cyclic aromatic polymer composed of a specific constituent component. CONSTITUTION:The random polymer used as a raw material for the subject fiber is composed of (A) an organic silicon polymer composed mainly of a bond unit (Si-CH2) or bond unit (Si-Si) and bond unit (Si-CH2) wherein the ratio of the total number of the bond unit Si-CH2 to that of the bond unit Si-Si is 1:(0-20) and (B) petroleum-based pitch, etc., containing aromatic ring bonded to a part of the silicon atom of the organic silicon polymer through Si-C bond group. Separately, a polycyclic aromatic compound composed of a meso phase or meso phase and an optically isotropic phase is produced by the heat-treatment of petroleum-based pitch, etc. A silicon-containing polycyclic aromatic polymer produced by melting 100 pts.wt. of the random polymer and 5-50,000 pts.wt. of the polycyclic aromatic compound at 200-500 deg.C is spun, infusibilized and calcined at 800-3000 deg.C in vacuum. Finally, fine particles of a heat-resistant substance are attached to the fiber surface to obtain a fiber for composite material and having excellent wettability to metallic matrix. |
