Glass fiber reinforced co-polypropylene composite material and preparation method of the Glass fiber reinforced co-polypropylene composite material

The invention discloses a glass fiber reinforced co-polypropylene composite material and a preparation method of the glass fiber reinforced co-polypropylene composite material. The preparation method includes the steps as follows: uniformly mixing co-polypropylene, polypropylene grafted with maleic anhydride, homopolymerized polypropylene organic peroxide initiator, and antioxidant in proportion;adding the mixture in a double-screw extruder and simultaneously adding glass fiber strand roving; and conducting melt extrusion for granulation at the temperature of 170-220 DEG C, thus obtaining the glass fiber reinforced co-polypropylene composite material, wherein the melt index of the obtained composite material is 18-35g/10min, the tensile strength is 49-89 Mpa, the breaking elongation is 9-35%, the Young modulus is 2.3-5.3GPa and the notch impact strength is 10-33kJ/m2. The glass fiber reinforced co-polypropylene composite material provided by the invention has not only outstanding strength, modulus, and impact resisting and heat resisting properties, but also excellent processing flow property, and can injection-mold and form thin-wall products with attractive appearance and complex shape; and the glass fiber reinforced co-polypropylene composite material has the characteristics of being light in weight and cheap in cost can substitute for engineering plastics such as expensive ABS (Acrylonitrile Butadiene Styrene) and nylon.