Corrosion-resistant SiO2-graphene oxide/epoxy coating reinforced by effective electron beam curing

The development of an effective approach to fabricating superior anti-corrosion epoxy resin-based coating has long been a desirable goal in the steel industry, but many challenges remained. Herein, we fabricated a SiO2- graphene oxide filled silane-treated resin (SiO2-GO/HEP) coating with a protection efficiency of similar to 99.995 % via an electron beam (EB) curing technology. The complete curing took <1 min at room temperature. The corrosion voltage and corrosion current density of synthetic SiO2-GO/HEP coating achieved -0.2 V and 2.1 x 10(-9) A center dot cm(- 2), respectively. The impedance modulus was increased by 4 orders of magnitude compared with pure epoxy coating. Our findings demonstrated that replacing conventional UV curing with EB curing significantly reduced the current density from 2 x 10(-7) A center dot cm(- 2) to 2.1 x 10(-9) A center dot cm(- 2), and the water absorption rate decreased from 1.05 % to 0.13 %. As a result, our combined strategy provided a new and efficient anticorrosion nanocomposite structure, advancing the EB curing technology.

Automated summary

In this study, a SiO2-graphene oxide filled silane-treated resin (SiO2-GO/HEP) coating was successfully fabricated using electron beam (EB) curing technology, which exhibited a protection efficiency of nearly 99.995% and a complete curing time of less than 1 minute. Compared with conventional UV curing, the EB curing significantly reduced the current density and water absorption rate.