Effects of SiO₂ Nanoparticles on Polyvinyl Alcohol/Carboxymethyl Cellulose Polymer Blend Films’ Structural, Wettability, Surface Roughness, and Optical Characteristics

Table 1

FTIR bands assignment of PVA/CMC blend film.

Wavenumber (cm^−1)	Assignment
3,287	─OH stretching [32]
2,924	─CH2 asymmetric stretching [32]
1,720	C═O stretching [32]
1,662	C═C stretching [32]
1,560	C─H and C─O stretching [32, 33]
1,484	CH2 bending [34]
1,250	─CH2 bending [35]
1,234	Si─O─Si stretching [36]
1,095	C─O stretching of CMC [35]
920	C─C stretching [37]
957	Rocking vibration of CH2 [38]
856	C─C stretching [35, 39]
800	Si─O─Si stretching [36]