| abstract |
A polypropylene nanocomposite material with low temperature toughness and rigidity and a preparation method thereof, comprising the following components in parts by weight: 60-100 parts of polypropylene random copolymer, 15-33 parts of elastomer, 9-32 parts of inorganic rigid particles and 2-3 parts of polypropylene antioxidant, optionally 0.03-0.4 part of cross-linking agent can be added, and it is prepared by the traditional melt blending method, the process is simple and the process is few. The scheme of the present invention includes two modification methods: first, the elastomer and nano-silica coordinately adjust the brittle-ductile transition temperature of the material to achieve low temperature toughening; second, based on the dynamic vulcanization technology, the first modification method is optimized, Achieve low temperature toughening and rigid-tough balance of materials. |