| 摘要 |
PURPOSE:To obtain pellets light in wt. and inexpensive and having excellent conductive characteristics, by impregnating and binding a number of continuous filaments of a conductive fiber with a specific resin and extruding a polyethylene to coat the bundle while the resin is kept in a fluid state. CONSTITUTION:A number of continuous filaments of a conductive fiber are impregrated and bound with a resin being compatible with polyethylene and having a high fluid characteristic in a molten state. Then, while the resin is kept in a fluid state, a polyethylene as a matrix resin is extruded around the outer side to coat the bundle with the polyethylene to prepare a composite, which is cut into pellets. As the resin is compatible with polyethylene, a low mol. wt. aliphatic hydrocarbon wax, whose average mol. wt. is 20,000 or less, preferably 10,000 or less so as to infiltrate easier, e. g., polyethylene wax can be used. Wettability of the conductive fiber with polyethylene becomes better and the fibers are homogeneously dispersed in the polyethylene resin. If pelletizing is carried out without binding, the conductive fibers tend to fall out of the composite.
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