Fig. 5: Tribological behavior of HNP-PDMS@BA.

A Schematic of the sliding configuration. Molecular dynamics simulation results: B water interacting with a steel ball and a hydrophobic or hydrophilic surface at 10 ns (blue particles are the water molecules, and gray particles are the iron atoms; the cyan surface simulates the hydrophobic or hydrophilic surface) and C water density map in the Z direction. D The COF–cycle curve of different friction samples at 2 N and 4 Hz. E Average COF at 2 N and 4 Hz after stabilization. The error bars show the standard deviation of the mean, computed from the COF at the steady cycle state. F The wear volume and rate of different friction samples. The error bars show the standard error of the mean, computed from three samples. The 3D profile and 2D cross-section of G S-PDMS and H P1 after 14,400 reciprocating cycles. I Schematic of corrosion-induced self-lubrication.