INSULATING COMPOSITION, WIRE/CABLE, AND METHOD FOR PRODUCING INSULATING COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide an insulating composition having a higher effect that can be obtained by adding an inorganic filler than conventional compositions, and to provide a wire/cable using the same and a method for producing the same. SOLUTION: The insulating composition of the present invention uses a low-density polyethylene as a material for a polyolefin resin and magnesium oxide which is surface-treated with a vinylsilane and then milled by jet milling. These components are kneaded through a twin-screw extruder so that the filler in the insulating composition has an average particle size of 200 nm or less to prepare an insulating composition. The resulting insulating composition has a higher volume resistivity and direct current breakdown strength than conventional insulating compositions. COPYRIGHT: (C)2007,JPO&INPIT