▎ 摘　　要

In this paper, VB2 had been added to modify the simple oligoanilines integrated with rGO for further improving the corrosion protection properties. Trimer aniline (TA) had been synthesized to fabricate a novel composite with rGO after functionalized with VB2. Through the combination of VTA and rGO, enhanced electrical properties were discovered, which were attributed to the graphitic structure and the pi-pi* interactions between rGO and VTA. As a result, VTA-rGO composite provided excellent barrier performance against corrosive electrolyte diffusion and owned better corrosion protection properties than TA and VTA individually, with the combination of VTA and rGO.