Functionalization of Cellulose Fibres with Oxygen Plasma and ZnO Nanoparticles for Achieving UV Protective Properties

Figure 2

SEM images of (a) untreated cotton fibres and cotton samples that were oxygen plasma-treated for (b) 10 s, (c) 20 s, and (d) 30 s.

(a)

(b)

(c)

(d)