Low-odor anti-tack polypropylene composite material with long-acting thermo-oxidative aging resistance and preparation method thereof

The invention discloses a polypropylene composite material with long-acting thermo-oxidative aging resistance, low odor and tack resistance and a preparation method of the polypropylene composite material. The polypropylene composite material is prepared from the following raw materials in percentage by weight: 37-97% of polypropylene, 0-30% of nano inorganic filler, 0.5-5% of epoxy resin, 1-10% of octaepoxy polyhedral oligomeric silsesquioxane, 1-15% of elastomer, 0.1-0.5% of antioxidant and 0-2% of other aids. According to the invention, epoxy resin and octa-epoxy polyhedral oligomeric silsesquioxane are introduced into a nano inorganic filler reinforced polypropylene composite system, and a cross-linked network structure is formed through the bonding effect inside epoxy groups, so that the cross-linked network structure and a conventional antioxidant can form a synergistic antioxidant effect; meanwhile, due to the small-size effect of the octa-epoxy polyhedral oligomeric silsesquioxane, the polypropylene c