Achieving high performance anticorrosive coating via in situ polymerization of polyurethane and poly(propylene oxide) grafted graphene oxide composites

Herein, polyurethane (PU)/poly(propylene oxide) grafted graphene oxide (GO-g-PPO) composite coating with anticorrosive properties was prepared by in situ polymerization. Results revealed that the anticorrosive properties of PU/GO-g-PPO-16 composite coating were greatly improved by the homogenous dispersion of GO-g-PPO-16 composites in PU coating. When the solid content of GO-g-PPO-16 composites was 0.08 wt. % in PU coating, the coating resistance was 50 times higher than that of PU coating after immersion in 3.5 wt. % NaCl (aq.) for 168 h.