| 摘要 |
PURPOSE:To sufficiently utilize the characteristic of chaff and to use the charcoal as conductive material, refractory material, etc., by coating the surface of the particulate charcoal obtained by carbonizing chaff with a self-hardening thermosetting resin. CONSTITUTION:Chaff is dried, crushed to 140-1130mum particle diameter, and then roasted at 1000-1200 deg.C to obtain the particulate chaff charcoal (A). When the precondensate of a self-hardening thermosetting resin (e.g. phenolic resin) (B) is subjected to a reaction, the A component is added to allow the reaction to proceed, and the particulate charcoal obtained by coating the surface of 100 pts.wt. of the A component with 5-80 pts.wt. of the B component is produced. The particulate charcoal is formed, heated, and pressed to obtain a refractory or conductive formed product. |
