Abstract
The optical properties for adding (ZrC) nanoparticles to (PVP-PVA) were studied. The Poly(vinyl alcohol) and poly(vinyl pyrrolidone) were blended and films were obtained by the casting method. Zirconium carbide nanoparticles (ZrC) were added with different weight percentages (4 wt.%, 8 wt.%, 12 wt.% and 16 wt.%) to the (PVP-PVA) blend. The wavelength range used to measure the optical properties is (220-820) nm. Analyzing the results it is found that the absorbance (A) decrease by increasing the (ZrC) nanoparticles concentrations, while the coefficient of absorption (α), coefficient of extinction (k), index of refraction and the constants of real and imaginary (∈ 1, and ∈ 2) increased by increasing the concentration of (ZrC) nanoparticles. The gap of energy (Eg ) of (PVP-PVA) blend increases with the increasing of (ZrC) nanoparticles weight percentages.
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