Anti-oxidant semi-conductive polymer compound self-regulating heating cable therein and a manufacturing method

摘要

The present invention relates to a polymer semi-conductive compound having anti-oxidant properties and a method of manufacturing a self-regulating heating cable using the same. A silane-grafted adhesive resin production step of producing an adhesive resin which has been subjected to a heat treatment; A melt kneading step of producing a polymer semiconductive composition; A pelletizing step of making a semi-conductive composition pellet; A conductive heat treatment step of removing a foreign substance and a fresh oil adhering to the surface of the conductor to produce a heat-treated conductor; An adhesive layer formation step of forming an adhesive layer having a thickness of 0.1 to 10 mu m on the outer periphery of the conductor; A semi-conductive heating element manufacturing step of producing a semi-conductive heating element by extrusion molding the semi-conductive composition pellet produced in the pelletizing step; A stabilization step of stabilizing the semi-conductive heating element manufactured in the semi-conductive heating element manufacturing step; 100 to 200 parts by weight of a copolymer resin is added to a conductor composed of a metal wire such as a copper wire, a silver wire and a nickel wire, or a metal plating copper wire or an alloy wire composed of a tin-plated copper wire, a nickel plated copper wire, 1 to 5.0 parts by weight of an initiator, 10 to 25 parts by weight of vinylsilane, 1 to 20 parts by weight of a metal-coated carbon nanotube, 40 to 250 parts by weight of a conductive carbon black, 200 to 700 parts by weight of a polymer resin, , 1 to 5 parts by weight of a dispersing agent, 5 to 100 parts by weight of a metal oxide, and 1 to 10 parts by weight of a porous silica carrying an irradiation crosslinking agent are coated on the surface, A self-controlling heating cable is manufactured using the polymer semiconductive composition having the oxidation resistance characteristic.