| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject composition useful as an antistatic material, capable of stably providing a synthetic resin molding having 10<5> to 10<10>Ωcm volume specific resistance, comprising a synthetic resin and a carbon precursor particle having a specified carbon content. SOLUTION: This resin composition comprises (A) a synthetic resin (preferably a polyamide, a polyethylene terephthalate, etc.) and (B) a carbon precursor particle having 85-97wt.% carbon content and not completely carbonized (preferably particles having 10<4> to 10<8>Ωcm volume specific resistance and <=0.1mm average particle diameter). The addition of electroconductive fibers to the composition preferably improves mechanical characteristics such as strength, etc., and sliding characteristics besides adjustment of volume specific resistance of a synthetic resin molding. Carbon fibers having 100-500μm average fiber length are preferable as the electroconductive fibers. The component B, for example, is obtained by infusibilizing a thermoplastic resin such as a polyacrylonitrile, etc., in an oxidizing atmosphere and heating and baking in an inert atmosphere.
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