Characterization of Graphene Reinforced Epoxy Coatings for Internal Surface of Oil and Gas Pipelines

摘要

Corrosion is one of the leading causes of failures of metallic oil and gas pipelines. Complexity of the pipeline systems and severe environments they often experience post great challenges for their corrosion control, particularly for corrosion mitigation of internal surface. In this study, we report an experimental study to evaluate the potentials of using graphene/epoxy-based nanocomposites as a protective coating for the internal surface of oil and gas pipelines. The specimens were prepared by varied concentrations of nano-particles from 0.1 to 3.0 wt.%. The critical mechanical and electrical properties of the nanocomposites, including the abrasion resistance, the water repellency, and the barrier properties were characterized. The test results suggested the 0.5-1.5 wt.% of the graphene nano filler led to the great improvements in both mechanical and electrochemical properties for corrosion resistance for pipeline applications, while enhanced abrasion resistance and ductility also respond for the loading of the graphene particles.