Fig. 8: The self-healing performance of EP/MSN-TA5% coating. | npj Materials Degradation

Fig. 8: The self-healing performance of EP/MSN-TA5% coating.

From: Towards weathering and corrosion resistant, self-warning and self-healing epoxy coatings with tannic acid loaded nanocontainers

Fig. 8: The self-healing performance of EP/MSN-TA5% coating.

Bode plots of (a1-a2) the scratched blank epoxy coating and (b1-b2) the scratched EP/MSN-TA5% coating during immersion in 3.5 wt.% NaCl solution; the variation of |Z|0.01Hz of (c1) the scratched blank epoxy coating and (c2) the scratched EP/MSN-TA5% coating; SEM images and EDS mapping of the scratches after peeling (d1) the blank epoxy and (d2) the EP/MSN-TA5% coating from the Q235 steel substrates (scale bar: 40 μm); the surface compositions of the Q235 steel substrates at the scratch areas after peeling (e1) the blank epoxy and (e2) the EP/MSN-TA5% coating (error bars stand for the standard deviations from three independent samples).

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