Research Article

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

Table 6

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

Sample (mJ/m2) (mJ/m2) (mJ/m2) (mJ/m2)1/2 (mJ/m2) 1/2Nature

Pure PMMA12.4610.102.361.06−2.22Amphoteric
UV/O3 30 min22.5820.322.261.08−2.09Amphoteric
UV/O3 60 min163.1226.359.475.02−3.82Amphoteric
UV/O3 120 min147.162.644.521.50−3.00Amphoteric
Acid 6 hours12.525.107.411.71−4.32Amphoteric
Acid 12 hours19.637.3612.262.67−4.58Amphoteric
Acid 24 hours23.1111.0712.034.47−2.68Amphoteric