A modified plastic based on multilayer graphene and preparation method thereof

Abstract

The invention discloses a modified plastic based on multilayer graphene and a preparation method thereof, and the present invention relates to the technical field of modified plastics, including the following raw materials in parts by weight: 20-30 parts of multilayer graphene, 55-70 parts of polypropylene, 2.5-6 parts of polydimethylsiloxane, and 3.5-7 parts of fillers. The modified plastic based on multilayer graphene and a preparation method thereof, by modifying silica lime, makes its combination with polypropylene more closely, can more effectively transmit stress, thereby significantly improving the mechanical properties of polypropylene; at the same time, the ethoxy group in vinyl triethoxysilane can react with the hydroxyl group on the surface of silica lime by hydrolysis condensation, forming a strong Si-O-Si covalent bond, and free radical polymerization or grafting reaction occurs between vinyl and polypropylene molecular chains, and a strong chemical bond connection is established between silica lime and polypropylene, which not only improves the interface compatibility of the two, but also enables silica lime to better bear external force, and enhances the strength and rigidity of plastics.

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