Carbon fiber reinforced polypropylene resin composition with excellent molding property

摘要

The present invention provides a carbon fiber reinforced polypropylene resin composition with improved molding property. In particular, provided is a carbon fiber reinforced polypropylene resin composition with significantly improved molding property, tensile strength, flexural strength and the like by adding a modified polypropylene grafted with maleic anhydride as a compatibilizer to a polypropylene resin to reinforce the carbon fiber.

主权项

1. A polypropylene resin composition, comprising:
an amount of about 50 to about 80 wt % of a polypropylene resin as a homopolymer of propylene or a propylene-ethylene copolymer; an amount of about 1 to about 10 wt % of a modified polypropylene as a compatibilizer; and an amount of about 15 to about 40 wt % of carbon fiber, based on the total weight of the polypropylene resin composition, wherein the polypropylene resin has a melt index (MI) of about 20 to about 100 g/10 min at a temperature of about 230° C., a molecular weight distribution (MWD) of about 5 to about 10 and an isotactic index of about 97 to about 100, and wherein the modified polypropylene has a maleic anhydride graft ratio of about 5 to 11 wt %.