▎ 摘　　要

Corrosion has long been a worldwide nerve-wracking problem. To satisfy the growing demand on heavy corrosion protection, nitrogen-doped super-easily-dispersed graphene (N-BPG) was prepared and applied to reinforce the anti-corrosion performance of the commercial fluorocarbon paint. Compared with the commercial fluorocarbon resin (FEVE) coating, the obtained N-BPG/FEVE coating exhibited a 103 times larger |Z|0.01Hz even after a 7-day immersion. N-BPG/FEVE coating exhibited prominent anti-corrosion advantages over the commercial FEVE coating, and it was proved to mainly depend on the graphitic N of N-BPG that reacted with the FEVE matrix, blocked the possible gaps between fillers and the FEVE matrix, and endowed the coating with a high degree of integration. Corrosive mediums could not but zigzag through the interface regions capsulated NBPG to reach the steel substrate. The massively formed and widespread interface regions largely extended the barrier effect of N-BPG and led to excellent corrosion resistance. The present work ingeniously designed a DSC study to evidence the strong chemical interactions formed between N-BPG and the FEVE matrix directly, which may also provide some ideas for the following studies. The obtained N-BPG exhibited great application prospects to work as a filler of FEVE coatings in heavy corrosion protection.