The present invention relates to a glass fiber reinforced polypropylene composite material for blow molding and its preparation method. The glass fiber reinforced polypropylene composite material for blow molding comprises, by weight, 100 parts polypropylene, 10-20 parts PA1010, 20 parts glass fiber, 5 parts POE-g-MAH, and 2 parts additives; The polypropylene exhibits a melt mass flow rate of 10–30 g/10 min at 230°C and 2.16 kg. The preparation method involves feeding all raw materials except glass fiber into the main feed port of a twin-screw extruder at the specified weight ratio, while simultaneously feeding glass fiber into the side feed port of the twin-screw extruder. Melt granulation is then performed to obtain the glass fiber reinforced polypropylene composite material for blow molding, wherein the processing temperature of the twin-screw extruder is 200-230°C. The method of the present invention is simple, and the resulting composite material can be normally blow molded.
Country Code: CN
Application Number: CN202211717752.0
