RESEARCH ON POLYURETHANE COATING CONTAINING NANO GRAPHENE CORROSION RESISTANCE FOR CARBON STEEL

Abstract

Polyurethane/Graphene nanocomposite coating films have been fabricated
with graphene ratios of 0; 0.5; 1 and 1.5% weight. The coating structure is
evaluated by infrared spectroscopy, scanning electron microscopy (FESEM).
Investigate the effect of graphene concentration on the properties of the coating
are studied and evaluated by adhesion test, impact resistance and Electrochemical
Impedance Spectroscopy (EIS). The results show that nanographene has the
ability to enhance the mechanical properties and corrosion resistance of
polyurethane coating. In this report, the optimal graphene concentration is 1%,
increasing the concentration of nanographene improves the properties of the
coating, however, when the graphene concentration is too high (1.5% in the
report), the coating quality significantly reduced.