ELECTROCONDUCTIVE THERMOPLASTIC RESIN COMPOSITION, METHOD FOR PRODUCING THE SAME, AND INJECTION-MOLDED RESIN ARTICLE AND EXTRUSION-MOLDED ARTICLE OBTAINED THEREFROM

摘要

PROBLEM TO BE SOLVED: To provide a polyamide resin composition having a higher electroconductivity even on adding a small amount of the electroconductive substance.

SOLUTION: This electroconductive thermoplastic resin composition includes tow or more kinds of the thermoplastic resins and an electroconductivity-imparting agent, wherein, the thermoplastic resin includes at least a polyamide resin (a Polyamide 5X) having a structure corresponding to a polycondensate material obtained by a polycondensation reaction by using the monomer components of a diamine containing mainly pentamethylene diamine and a dicarboxylic acid, and among the polyamide X, if taking the polyamide 5X having a highest blending amount in the polyamide 5X as "a thermoplastic resin (a)" and if taking a thermoplastic resin having the highest blending amount in the thermoplastic resins other than the thermoplastic resin (a) used in the thermoplastic resin used as the electroconductive thermoplastic resin composition as "a thermoplastic resin (b)", the absolute value of a difference between the solubility parameter value of the thermoplastic resin (a) and the solubility parameter value of the thermoplastic resin (b) is≥0.2 and≤3.7.

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