| 摘要 |
<p>In a tumbling mixer or the like, polypropylene pellets are blended with 1 to 5wt% of carbon nanotubes, 10 to 30wt% of fly ash, 10 to 20wt% of talc, and 0.3 to 1wt% of a modifier; the resulting blend is extruded from a screw extruder while heating the blend to a melting temperature of about 160 to 260°C; and the thus-formed strand is cooled and cut into pellets having a predetermined length. By virtue of the use of fly ash, talc, and a modifier, an electroconductive thermoplastic resin thus obtained is inexpensive and has a reduced weight, and further exhibits excellent dustproofness, heat resistance, and recyclability, though the resin contains a small amount of carbon nanotubes.</p> |
