Microstructural and Mechanical Studies of PVA Doped with ZnO and WO₃ Composites Films

Figure 3

Stress-strain curves of PVA/(𝑥) ZnO (15−𝑥) WO₃ with (a) pure PVA, (b) 𝑥=0 wt%, (c) 𝑥=1 wt%, (d) 𝑥=5 wt%, (e) 𝑥=7.5 wt%, (f) 𝑥=10 wt%, (g) 𝑥=14 wt%, and (h) 𝑥=15 wt%.