Research Article

Degradation in Seawater of Structural Adhesives for Hybrid Fibre-Metal Laminated Materials

Figure 4

SEM image of the surface of polyurethane adhesive MCB specimens after fracture. Following a 32-day seawater immersion period, (a) the limit of the water diffusion zone and (b) a detailed image of the adhesive’s degradation produced by the action of water.
869075.fig.004a
(a)
869075.fig.004b
(b)