| 摘要 |
PURPOSE:To prepare an isotropic carbon material having anisotropic ratio of a several characteristics approximately equal to 1 by adding a binder to the powder of cured or carbonized product of a thermosetting resin, then kneading, molding, calcining, or graphitizing the mixture. CONSTITUTION:Cured or carbonized thermosetting resin (e.g. phenol resin, furan resin, etc.) is pulverized, and a binder is added to the obtd. pulverized product, which is kneaded to obtain a kneaded product. The kneaded product is, if necessary, pulverized, then molded with a rubber press or extruding press, etc. The molded product is calcined thereafter. Primary calcination is executed at 900-1,200 deg.C, and secondary calcination is executed, if necessary, after adding pitch as filler. Graphitization may be further executed. An isotropic carbon material having an anisotropic ratio approximately equal to 1 is obtd. quite easily by using the above described substantially isotropic raw material. By utilizing the carbon material, the performance of a CZ furnace, electrical discharge machining machine, nuclear reactor, etc., can be improved. |
