METHOD FOR MODIFYING MATERIAL THROUGH RAPID SURFACE GRAFTING, AND USE THEREOF

원문 (중국어)

A method for modifying a material through rapid surface grafting, and a use thereof are provided. In the method, with an olefin-functionalized nanomaterial as a model matrix, a cycloolefin as a polymerization monomer, a Grubbs catalyst as an initiator, and ethyl vinyl ether as a terminator, surface olefin cross-metathesis is conducted to prepare a polyolefin-grafted nanomaterial. In the use, with a thermoplastic resin as a matrix and the surface-polyolefin-grafted nanomaterial as a reinforcing material, a composite is prepared. The compatibility between the reinforcing material and the thermoplastic resin matrix is evaluated through cross-sectional morphology and mechanical performance characterization. A chain-transfer reaction is adopted as an alternative approach for surface-initiated ring-opening metathesis polymerization to avoid the growth of polymer chains from the surface. This alternative approach can significantly improve a reaction rate, shorten a reaction time, and simplify a technical flow, and demonstrates a promising industrialization prospect.