Study on the Photodegradation Stability of Poly(butylene Succinate-co-butylene Adipate)/TiO₂ Nanocomposites

Figure 6

SEM images of surface changes before UV irradiation of (a) pure PBSA and (b) PBSA containing 1.5 wt.% TiO₂ and after 360 h UV irradiation of (c) pure PBSA and (d) PBSA containing 1.5 wt.% TiO₂ at a magnification of 3 kX.

(a)

(b)

(c)

(d)