| 摘要 |
PURPOSE:To provide a compact having high electromagnetic wave shield performance, high compactibility and high strength, and further provide an inexpensive conductive resin composition by mixing a resin material with a conductive powder material made of heat treated coke, and a carbon or metallic scaly conductive filler. CONSTITUTION:A thermosetting or thermoplastic resin material is mixed with the following conductive powder, according to a weight ratio between 1:0.5 and 1:1.3. This conductive powder material is composed of 100 pts.wt. of coke powder having such an electrical resistivity as lowered from the resistivity of pre-treatment coke powder via the thermal treatment of finely pulverized coke powder in an inert gas flow at a temperature of 800 deg.C or above, and 5 to 30 pts.wt. of a carbon scaly conductive filler or 20 to 80 pts.wt. of a metallic scaly conductive filler. In this case, the carbon scaly conductive filler should preferably be graphite. Also, the metallic scaly conductive filler is preferably nickel and copper. |
