Synthesis and Physicochemical Behaviour of Polyurethane-Multiwalled Carbon Nanotubes Nanocomposites Based on Renewable Castor Oil Polyols

Figure 3

FESEM images of fractured surface of (a) 0% MWCNTs, (b) 0.3% MWCNTs, (c) 0.5% MWCNTs, and (d) 1% MWCNTs in COPUs matrix.

(a)

(b)

(c)

(d)