GLASS FIBER-REINFORCED POLYPROPYLENE RESIN COMPOSITION, PREPARING METHOD THEREOF, AND MOLDED ARTICLE INCLUDING SAME

摘要

The present invention relates to a glass fiber-reinforced polypropylene resin composition, a preparing method thereof, and a molded article including the same. The glass fiber-reinforced polypropylene resin composition of the present invention comprises: (A) 30 to 55 wt% of non-graft polypropylene; (B) 20 to 40 wt% of an ethylene-butene copolymer having a number average molecular weight of 5,000 to 50,000 g/mol; (C) 5 to 25 wt% of glass fiber; and (D) 0.1 to 10 wt% of a compatibilizer containing polypropylene grafted with maleic anhydride. In addition, the Shore A hardness of the ethylene-butene copolymer (B) is 45 to 65. According to the present invention, the glass fiber-reinforced polypropylene resin composition has excellent mechanical properties such as impact strength, tensile strength, flexural strength and the like while having low specific gravity, and particularly has soft tactility by lowering hardness.;COPYRIGHT KIPO 2019