CARBON FIBER-CONTAINING RESIN MOLDED PRODUCT

摘要

PROBLEM TO BE SOLVED: To provide a resin molded product which contains a small amount of an extrafine carbon fiber in a nearly best dispersion state to exhibit electrical insulation or conductivity as much as possible. SOLUTION: The carbon fiber-containing molded product comprises 0.05-15 pts.wt. of the extrafine carbon fiber dispersed in 100 pts.wt. of a thermoplastic resin, wherein the extrafine carbon fiber has an average aspect ratio of 20-100 and an area rate [Ar] of 0.2-5.0% as calculated from a SEM photograph, provided that the SEM photograph has preferably a maximum particle area of 5.0×101μm2or less. The area rate äAr}: a 1μm thick slice piece of the resin molded product is taken a photograph of at 30 magnification by a transmission electron microscope, from the image of which particles having an area of 1.23×10-1μm2or more are extracted, followed by totaling their areas to represent as a percentage äAr} in the visual field. COPYRIGHT: (C)2006,JPO&NCIPI