Fig. 7: Copper ion dissolution rates measured after the scratched samples were immersed in 3.5 wt% NaCl solution for 180 days.
(Mean ± standard deviation). a Pure PVB, b PVB/Gr, c PVB/LDH, d PVB/(Gr/LDH), e PVB/MBT, f PVB/Gr@MBT, g PVB/LDH@MBT, h PVB/(Gr/LDH)@MBT.
