| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a semiconductive ultra-high-molecular-weight polyethylene film prepared by uniformly dispersing an electroconductive filler into ultra-high-molecular-weight polyethylene as a base material and its manufacturing method. <P>SOLUTION: The ultra-high-molecular-weight polyethylene having a weight-average molecular weight of not less than 5.0×10<SP>5</SP>and a polydispersity in the range of 15-100 and a conductive filler, preferably ketjen black, are melt kneaded in a twin-screw extruder, and then the resultant melt kneaded product is molded into pellets, and thereafter these pellets are extruded to obtain the semi-electroconductive ultra-high molecular-weight polyethylene film having volume resistivity in the range of 10<SP>5</SP>-10<SP>9</SP>Ωcm, preferably 10<SP>6</SP>-10<SP>8</SP>Ωcm. <P>COPYRIGHT: (C)2008,JPO&INPIT |
