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Open AccessArticle

Graphene Reinforced Composites as Protective Coatings for Oil and Gas Pipelines

1
Department of Civil and Environmental Engineering, North Dakota State University, Fargo, ND 58018, USA
2
Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, ND 58018, USA
*
Author to whom correspondence should be addressed.
Nanomaterials 2018, 8(12), 1005; https://doi.org/10.3390/nano8121005
Received: 13 November 2018 / Revised: 23 November 2018 / Accepted: 3 December 2018 / Published: 4 December 2018
(This article belongs to the Special Issue Multifunctional Graphene-Based Nanocomposites)
Corrosion and corrosion-induced damage have resulted mostly in malfunctions and sometimes even in failures of metallic structures, including oil and gas pipelines. In this study, new high-performance composite coatings were developed by incorporating nanoparticles in the polymer resins with applications to oil and gas pipelines. The graphene nanoplatelets under different concentrations were used to prepare the epoxy-based nanocomposites and were then evaluated through mechanical and electrical tests. The integration of high-speed disk and ultrasonication were adopted as the dispersion technique to overcome nanoparticle agglomeration. Electron microscopy techniques were used to investigate the agglomeration. The new composites were qualitatively and quantitatively evaluated in terms of contact angle, surface roughness, adhesion to the substrate, corrosion resistance, and abrasion resistance. The results suggested that the composite with 0.5~1.0 wt.% of the graphene nanofillers led to the largest improvement in both mechanical and electrochemical properties. Distribution of nanoparticles in the matrix was observed using scanning electron microscopy and surface roughness using atomic force microscopy. Large agglomeration that was observed at the higher concentrations mainly resulted in the reduction of corrosion resistance and abrasion resistance. View Full-Text
Keywords: nano-modified high-performance coating; dispersion methods; graphene nanoplatelets; corrosion mitigation; nanocomposite; gas and oil pipelines nano-modified high-performance coating; dispersion methods; graphene nanoplatelets; corrosion mitigation; nanocomposite; gas and oil pipelines
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MDPI and ACS Style

Wang, X.; Qi, X.; Lin, Z.; Battocchi, D. Graphene Reinforced Composites as Protective Coatings for Oil and Gas Pipelines. Nanomaterials 2018, 8, 1005.

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