Influence of gamma rays on the optical characteristics of CPVC/Ag nanocomposite film

In the current study carboxylated polyvinyl chloride/silver (CPVC/Ag) nanocomposite film was prepared. Samples from CPVC/Ag (1.5cm × 1.5 cm) were treated with 25–200 kGy gamma dosages. The optical characterization of films has been investigated considering dosage by applying UV spectroscopy and colour difference studies. bandgap, refractive index, Urbach energy, dielectric parameters, chromaticity coordinates, tristimulus values, intensity intercepts have calculated interpreted based on bandgap decreased 4.14 to 3.87 eV augmenting upto 200 kGy, together a rise in energy. This is attributed domination crosslinks which damage crystalline phase. Moreover, non-treated practically transparent. It demonstrated kindliness change treatment, as reached value greater than 5, meaning permanent changes.