| 摘要 |
PROBLEM TO BE SOLVED: To provide a polypropylene resin composition capable of obtaining a foamed molded product having excellent dynamic properties and heat resistance and hardly causing protrusion of fibers or silver streaks on its surface, and a foamed molded product made of the resin composition.SOLUTION: A polypropylene resin composition consists of: 30-70 pts.wt. of a propylene copolymer (A) consisting of a propylene homopolymer component and a propylene-ethylene copolymer component and having a melt flow rate of 50-120 g/10min; 5-25 pts.wt. of an ethylene-α-olefin copolymer (B); 1-10 pts.wt. of a modified polyolefin resin (C) modified by a compound selected from the group consisting of unsaturated carboxylic acids and unsaturated carboxylic acid derivatives with a graft efficiency of ≥0.65; 1-10 pts.wt. of a terpene resin (D) with a glass transition temperature (Tg) of 100°C or lower; and 10-30 pts.wt. of glass fibers (E) wherein the surfaces are treated with a silane coupling agent. |
