Achieving high performance corrosion and wear resistant epoxy coatings via incorporation of noncovalent functionalized graphene

Development and Characterization of Anticorrosion and Antifriction Properties for High Performance Polyurethane/Graphene Composite Coatings

“…Many mechanical properties of polymer materials, such as mechanical strength [35,36], tribological performance [37][38][39][40][41][42], thermal stability [19] and electrical conductivity [43,44], can be improved remarkably by incorporating carbon derivatives into polymers. In particular, the antifriction performance of polymer coatings is of practical importance because these coatings are susceptible to damage through scratching and abrasive wear under outdoor service conditions, leading to the loss of mechanical strength.…”

“…The addition of high-performance nanofillers, such as ceramic particles into polymer coatings, is effective in enhancing their antifriction properties. Notably, recent investigations have revealed the significant potential of Gr and its derivatives for producing polymer composite coatings with high antifriction properties [38][39][40][41][42]. For instance, Mo et al [38] investigated the tribological performance of PU composite coatings reinforced with functionalized Gr (FG) and Gr oxide (FGO) and found that FG and FGO enhanced the antifriction property of PU composite coatings owing to their lubricating effects.…”

“…However, the tribological resistance of the coating decreased with an increase in the contents to 0.5 wt.%. Chen et al [40] successfully exfoliated Gr with a few atomic layers in an organic solvent by using P2BA as a dispersant. They found that embedding a small percentage of these well-dispersed Gr nanosheets (P2BA 0.5% -G 0.5% ) in epoxy coating can remarkably improve the antifriction properties of the coating.…”

“…Therefore, Gr can play an essential role in improving the anticorrosion and antifriction properties of polymer coatings. Although a few studies have reported that the anticorrosion and antifriction properties of polymer coatings can be simultaneously altered using Gr additives [38][39][40], the Gr contents employed in those works were relatively low. Moreover, the COF of composite coatings used in those studies increased rapidly to a higher value (over 0.5) after a short sliding distance and the impedance modulus of the composite coatings at the lowest frequency in the Bode plot decreased with the passage of measurement time under immersion in 3.5 wt.% NaCl solution.…”

Preparation of transparent nanocomposites from UV‐ and thermo‐curable epoxyacrylate and graphene oxide for the application of corrosion protection coatings

“…. For the EA/GO‐coated steel plate at 3 phr GO, its impedance value gradually decreased from 975.7 kΩ cm 2 before pre‐immersion to 441.7 kΩ cm 2 after pre‐immersion for 72 h, which can be explained by the penetration of the corrosion solution . As discussed previously, the addition of GO into the EA improved the anticorrosion properties in which the GO/EA‐coated steel plates had higher values of the impedance than the EA‐coated plate, and the value increased with GO content during the whole immersion process.…”