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

Table 1

Surface energy calculation of treated MWCNT films using Fowkes model.

Sample	(mJ/m^2)	(mJ/m^2)	(mJ/m^2)
Raw CNT	25.00	18.00	7.00
UV/O3 30 min	44.29	37.00	5.90
UV/O3 60 min	66.62	59.00	12.00
UV/O3 120 min	71.43	92.00	13.23
Acid 6 hours	8.01	0.77	7.24
Acid 12 hours	16.88	14.58	3.30
Acid 24 hours	26.73	25.76	0.97