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

Table 2

Surface energy calculation of treated MWCNT/PMMA nanocomposites using Fowkes model.

Sample	(mJ/m^2)	(mJ/m^2)	(mJ/m^2)
Pure PMMA	12.51	10.14	2.42
UV/O3 30 min	22.48	20.79	2.19
UV/O3 60 min	126.86	16.05	11.00
UV/O3 120 min	145.56	2.75	4.75
Acid 6 hours	13.43	5.30	8.14
Acid 12 hours	20.34	7.66	12.69
Acid 24 hours	26.74	11.54	15.20