TiO2-coated CNT, TiO2-coated CNT reinforced polymer composite and methods of preparation thereof

摘要

A method of preparing carbon nanotube/polymer composite is disclosed, which includes: forming a layer of TiO₂ on carbon nanotubes (CNTs) with a precursor of TiO₂ by a sol-gel or hydrothermal method, a weight ratio of the TiO₂ precursor to CNT being 0.3:1 to 30:1; modifying the TiO₂-coated CNTs with a coupling agent to improve the affinity thereof to a polymer; and mixing a polymer with the resulting modified TiO₂-coated CNTs to form a TiO₂-coated CNT reinforced polymer composite. The mechanical properties of the polymer composite can be enhanced by using an additional fiber reinforcement material.