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

Table 2

Roughness parameters of PVA/CMC/SiO₂ films.

Sample ID	Ra	Rz	Rq	Rp	Rv	Rsk	Rku	Rk
PCS0	0.123	0.521	0.146	0.241	0.28	−0.209	2.032	0.406
PCS1	0.186	0.739	0.218	0.381	0.357	−0.287	2.079	0.553
PCS2	0.232	1.028	0.276	0.526	0.502	0.115	2.017	0.665
PCS3	0.296	1.274	0.354	0.705	0.57	0.41	2.212	0.86
PCS4	0.322	1.424	0.382	0.758	0.666	0.209	2.139	1.023