NON-HALOGENIC FLAME-RETARDANT INSULATING COMPOSITION USEFUL UNDER RADIATION EXPOSURE ENVIRONMENT

摘要

PURPOSE: To obtain a non-halogenic flame-retardant insulating composition retaining high electrical insulating properties and mechanical characteristics even after exposure to a high dose of radiation, suitable as a flame-retardant insulating material for electric devices to be used under a radiation exposure environment in an atomic power plant, etc. ;CONSTITUTION: This non-halogenic flame-retardant insulating composition useful under radiation exposure environment is obtained by mixing 100 pts.wt. of a base resin consisting essentially of a mixture of 70-97wt.% of a low-density polyethylene having 0.85-0.91g/cm³ density and 3-30wt.% of a modified polyolefin prepared by introducing an unsaturated carboxylic acid or its derivative to a polyolefin with 80-200 pts.wt. of magnesium hydroxide and 3-10 pts.wt. of poly(2,2,4-trimethyl-1,2-dihydroquinoline).;COPYRIGHT: (C)1995,JPO