| 摘要 |
PURPOSE: A polypropylene resin composition which is applicable to blow-extrusion under a conventional extrusion condition for general polypropylene, for forming a rear spoiler of automobile, owing to its excellent melt strength, is provided by comprising an organoperoxide having a certain half-life temperature and additionally a styrene-based rubber. CONSTITUTION: The polypropylene resin composition which can be blow-extruded to form a rear spoiler of automobiles comprising: (A) 60-90 wt% of propylene copolymer with C2, C4-C10 olefins, having 300,000 g/mol or more of a molecular weight and 0.1-3 g/10 min. of melt index at 230 deg. C; (B) ethylene-styrene copolymer rubber; and (C) 0.05-0.5 pts.wt. of organoperoxide based on 100 pts.wt. of the base resin consisting of (A) and (B), wherein the organoperoxide has 80 deg.C or less of half-life temperature based on the 10 hour of half-life temperature. |
