Research Article

Wettability Investigation of UV/O3 and Acid Functionalized MWCNT and MWCNT/PMMA Nanocomposites by Contact Angle Measurement

Figure 1

Raman spectrum of MWCNTs with pretreatment under different condition. (a) Pristine, (b) 120 min UV/O3, and (c) 24-hour acid.