| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technology capable of improving electrical conductivity while the amount of the addition of a carbon nano material is suppressed in a resin molded article. <P>SOLUTION: In a method for manufacturing the resin molded article comprising the carbon nano material capable of decreasing an electric resistance value and improving the electrical conductivity by decreasing injection speed, the resin molded article with a required electric resistance value is obtained by controlling the injection speed. If the electric resistance value can be decreased by decreasing the injection speed, an expensive carbon nano material can be saved, and the cost of the resin molded article can be suppressed. Simultaneously, by decreasing the ratio of the incorporation of the carbon nano material to the resin, it is possible to improving the moldability of the resin, to improve the quality of the resin molded article, and to avoid lowering quality. On the other hand, in some cases, high electrical conductivity is unnecessary in the resin molded article, and such low electrical conductivity that can make static electricity staying on the surface released is enough. The resin molded article like this can be manufactured by elevating the injection speed, to increase the electric resistance value. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
