| 摘要 |
PROBLEM TO BE SOLVED: To obtain an electroconductive thermoplastic resin composition for welding excellent in electroconductivity well-balanced with welding properties and good even in scuff resistance, etc., further an electroconductive resin molded product for welding prepared by molding the thermoplastic resin composition and an electroconductive resin blow molded product obtained by welding the plural electroconductive resin molded products. SOLUTION: This composition is an electroconductive resin composition for welding is obtained by compounding (B) a carbon black having >=700 (m<2> /g) specific surface area and >=300 (mL/100 g) DBP oil absorption volume in an amount of 2-20 pts.wt. based on (A) 100 pts.wt. of a thermoplastic resin and (C) carbon fibers in an amount of 0-80 pts.wt. based on (A) 100 pts.wt. of the thermoplastic resin therewith. When the amount of the thermoplastic resin (A) is X pts.wt., the amount of the carbon black (B) is Y pts.wt. and the amount of the carbon fibers is Z pts.wt., the value of (Y+Z)/(X+Y+Z) is 0.03-0.45 and the volume resistivity measured according to the method of ASTM D257 is <=10<8> (Ωcm).
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