High-crystallinity functional master batch modified polypropylene and preparation method thereof

The invention relates to the technical field of macromolecules, and particularly discloses high-crystallinity functional master batch modified polypropylene and a preparation method thereof. The preparation method comprises the following steps: S1, master batch preparation: weighing the following raw material components in parts by mass: 100 parts of a polypropylene base material; 0.1 to 6.25 parts of an antioxidant; 0.2 to 12.5 parts of an auxiliary antioxidant; 0.2 to 12.5 parts of a nucleating agent; 0.1 to 6.25 parts of a lubricant; 0.3 to 18.75 parts of a light stabilizer; 0.2 to 12.5 parts of an antistatic agent; the preparation method comprises the following steps: uniformly mixing the raw materials, and extruding and granulating the uniformly mixed powder through a double-screw extruder to obtain the high-crystallinity polypropylene functional master batch; s2, preparing the high-crystallinity polypropylene, namely uniformly mixing the prepared high-crystallinity polypropylene master batch with polypr