Preparation and Study of Structural, Optical and Electrical Properties of Composite Film [Pva-Peo-Mncl2.4h2o]

Abstract

The solution casting method was used to make pure polymeric blend film [Polyvinyl Alcohol-Polyethylene Oxide][PVA-PEO] and polymeric blend films reinforced with MnCl2.4H2O salt in various the weight (10, 20, 30, 40, and 50) % wt in the current study. The effects of weight ratio of salt on structuralproperties for all reinforced polymeric blend films were studied.FTIR spectra were used to establish the interaction between the polymer (PVA) and the polymer (PEO) reinforcedby MnCl2.4H2O salt, which causes some changesin the vibration modes and the position of the bonds.The effects of weight ratio of salt on optical properties for all reinforced polymeric blend films were studied, as the transmittance and absorbance spectra were recorded within the range of wavelengths (190-1100) nm, and it was found that the energy gap value decreases with an increase of the added salt’s weight ratio. Effects of salt’s weight ratio on electrical (dielectric) properties for all reinforced polymeric blend films were studied, and the practical results showed a decrease in the dielectric constant (ε ́) with an increase in frequency for all polymeric blend films, while the practical results also showed an increase in the alternating electrical conductivity (σa.c) with increasing frequency for all polymeric blend films, as well as an increase in both the dielectric constant and alternating electrical conductivity with an increase in the added salt’s weight ratio at same frequency.