Highly orientated graphene/epoxy coating with exceptional anti-corrosion performance for harsh oxygen environments

By Xiao Wang, Yuan Li, Cheng Li, Xiguang Zhang, D. Lin, Fei Xu, Yanji Zhu, Huaiyuan Wang, Jinlong Gong, Tuo Wang. 2020

154 citations recorded by the source corpus.

Abstract Herein, we designed a spin coating method and fabricated highly orientated graphene/epoxy (OG/EP) coating with long-term anti-corrosion performance. Surprisingly, the impedance at 0.01 Hz of OG/EP coating still remained at a relatively high value after 7 days of immersion in 3 MPa pure O2 and 3.5 wt% NaCl coupling environment, which was about 103 and 8 × 105 times higher than pure epoxy (Spin-EP and Spray-EP) and randomly arranged graphene/epoxy coatings’, respectively. The protection mechanism of OG/EP coating is interpreted as the orientation of graphene, maximizing the barrier effect of graphene and avoiding the formation of graphene conductive network.

Subfields: Electrical and Electronic Engineering, Materials Chemistry, Water Science and Technology

View Paper: https://www.semanticscholar.org/paper/d9d0e39dee9d6857a6a0fe80d3c15b1e710b2ca7