| 摘要 |
PURPOSE:To obtain the material in which carbon powder and carbon fiber are excellently dispersed by incorporating a specified thermosetting resin, carbon powder and short carbon fiber having a specified length in furfural of furfuryl alcohol, forming the fiber under pressure and burning the formed body. CONSTITUTION:The long carbon fiber burned at <=500 deg.C is impregnated with a dispersion of the soln. of phenolic resin having fluidity or tackiness at room temp., furan resin or their mixture in furfural, furfuryl alcohol or their mixture as the solvent and the carbon powder contg. <=50wt.% crude coke powder. The solvent is volatilized, and the obtained long fiber contg. the precursor of base material is cut to 1-8mm length. Alternatively, short carbon fiber having 1-8mm length is dispersed in the dispersion, and the solvent is volatilized to obtain the short carbon fiber contg. the precursor of base material. The fiber is formed under pressure, and then burned under pressure to obtain the desired material. |
