Fig. 6: Analysis of large-scale immersion test in 5.0 wt% NaCl solution. | npj Materials Degradation

Fig. 6: Analysis of large-scale immersion test in 5.0 wt% NaCl solution.

From: Bio-inspired self-healing and anti-corrosion waterborne polyurethane coatings based on highly oriented graphene oxide

Fig. 6

Digital images of a WPU, b WPU–GORM, and c WPU–GOLM coatings immersed in 5.0 wt% NaCl solution at different times. OM of the d WPU coating and g WPU–GOLM coating surface soaked for 246 h and e, h the corresponding carbon steel with the coating removed. AFM images of the f WPU coating and i WPU–GOLM coating surface morphology and digital photos of the corresponding carbon steel with the coating removed (inset in the lower right corner).

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