An Integrated Anti-Fouling and Anti-Corrosion Coating Enabled by rGO/AgNPs and Amphiphilic Networks
Shu Tian,
Jinli Zhang,
Shuan Liu,
Jingyu Li,
Jibin Pu,
Yugang Hao,
Guobing Ying,
Qunji Xue,
Guangming Lu
Affiliations
Shu Tian
Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
Jinli Zhang
Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; Department of Material Science and Engineering, College of Mechanics and Engineering Science, Hohai University, Nanjing 211100, China
Shuan Liu
Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Jingyu Li
Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Jibin Pu
Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Yugang Hao
Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Guobing Ying
Department of Material Science and Engineering, College of Mechanics and Engineering Science, Hohai University, Nanjing 211100, China
Qunji Xue
Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Guangming Lu
Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; Corresponding author.
Marine corrosion and biofouling are challenges that affect marine industrial equipment, and protecting equipment with functional coatings is a simple and effective approach. However, it is extremely difficult to combine anti-corrosion and anti-fouling properties in a single coating. In this work, we combine reduced graphene oxide (rGO)/silver nanoparticles (AgNPs) with a hydrophilic polymer in a bio-based silicone–epoxy resin to create a coating with both anti-fouling and anti-corrosion properties. The excellent anti-fouling performance of the coating results from a ternary synergistic mechanism involving fouling release, contact inhibition, and a hydration effect, while the outstanding anti-corrosion performance is provided by a ternary synergistic anti-corrosion mechanism that includes a dense interpenetrating network (IPN) structure, a barrier effect, and passivation. The results show that the obtained coating possesses superior anti-fouling activity against protein, bacteria, algae, and other marine organisms, as well as excellent anti-corrosion and certain self-healing properties due to its dynamic cross-linked network of rGO/AgNPs and the hydrophilic polymer. This work provides an anti-corrosion and anti-fouling integrated coating for marine industrial equipment.
