PHOSPHORUS-FREE BASED HALOGEN-FREE FLAME-RETARDANT RESIN COMPOSITION, PHOSPHORUS-FREE BASED HALOGEN-FREE FLAME-RETARDANT INSULATED ELECTRIC WIRE AND PHOSPHORUS-FREE BASED HALOGEN-FREE FLAME-RETARDANT CABLE

摘要

PROBLEM TO BE SOLVED: To provide a phosphorus-free based halogen-free flame-retardant resin composition that has high flame-retardant properties that pass foreign flame-retardant standards (EN, DIN, BS), is excellent in mechanical characteristics, and has a flat and smooth extrusion appearance, and to provide a phosphorus-free based halogen-free flame-retardant insulated electric wire and a phosphorus-free based halogen-free flame-retardant cable.;SOLUTION: A phosphorus-free based halogen-free flame-retardant resin composition includes: a base polymer including a copolymer of ethylene and 3-8C α-olefin polymerized by a metallocene catalyst as a main component, and 5-30 wt.% of an ethylene-vinyl acetate copolymer that has a melt flow rate of ≥50 g/min and a vinyl acetate content of ≥40%; a metal hydroxide blended with the base polymer in a ratio of 100-250 pts.wt. relative to 100 pts.wt. of the base polymer; and a mineral oil blended with the base polymer in a ratio of 1-20 pts.wt. relative to 100 pts.wt. of the base polymer.;COPYRIGHT: (C)2014,JPO&INPIT