METHOD FOR PRODUCING WATER TREE-RESISTANT, TRXLPE-TYPE CABLE SHEATH

摘要

A TRXLPE-type cable sheath is prepared by mixing the solid polymer with liquid water-resistant reagent by administration or direct injection. In dosage regimes, a solid polymer, such as high pressure LDPE, is sprayed or otherwise contacted with a liquid reagent, such as PEG, and the reagent is allowed to absorb into the polymer, followed by feeding the polymer with the absorbed reagent to an extruder to form a coated or uncoated wire or fiber To be extruded. In the direct injection method, a solid polymer is first fed to the extruder and the liquid reagent is sprayed or otherwise contacted with the polymer before the reagent and polymer are blended together through the action of the mixing element of the apparatus.