| 摘要 |
PURPOSE:To produce an impermeable carbon material having dimensional stability, strength, toughness and wear resistance by treating a skeleton material having functional groups on the surface with an aromatic cross-linking agent, combining the treated skeleton material with a specified thermosetting composition and carbonizing or graphitizing the resulting composite body. CONSTITUTION:The surface of a skeleton material having hydrogen, halogen, hydroxyl or other functional groups on the surface is treated with an aromatic cross-linking agent having one or more aromatic rings each having hydroxymethyl or halomethyl groups. A mixture of a condensed polycyclic aromatic compound having oxygen, sulfur, halogen or the like in the molecule having two or more rings with said aromatic cross-linking agent and an acid catalyst is prepd. or the mixture is brought into a reaction by heating to prepare a thermosetting intermediate reaction product. The treated skeleton material is combined with the thermosetting composition and the resulting composite body is plasticized by heating to 100-400 deg.C in an oxidizing or nonoxidizing atmosphere and molded into a prescribed shape by heat curing. The molded body is carbonized or further graphitized to obtain an impermeable carbon material. |
