Fig. 7: Underwater interfacial adhesion of different coatings.

a Schematic diagram of the lap shear test apparatus. b Photograph of the setup for the lap shear experiment. c Maximum shear forces and d shear strength of PTPM, PVA/PTPM, and AB/PTPM samples in the experiment. e Photograph of the AB/PTPM coating lifting a 10 kg weight underwater.