The Effect of Nano Doped Non-Stoichiometric Cadmium Sulfide on the Dielectric and Radiation Shielding Features in PVA/CMC/PVP Blended Polymers

Abstract This work seeks to prepare the polyvinyl alcohol (PVA)/carboxymethyl cellulose (CMC)/ polyvinyl pyrrolidone (PVP)/ nano CdS0.9M0.1, M=Cu, Co, Mn, Zn) to utilize in low-cost dielectric and radiation shielding applications (PVA/CMC/PVP blended polymers with the fillers. Precise phase recognition was conducted for the filler samples CdS0.9M0.1 employing the X-ray diffraction equipment. The effect of fillers on the structure and morphology of PVA/CMC/PVP blended polymer was explored. Doped blended polymers with CdS0.9Cu0.1 or CdS0.9Zn0.1 have the highest dielectric constants across the frequency ranges tested. The incorporation of CdS0.9M0.1 into the host blended polymer enhanced the ac conductivity of an undoped blend. The lowest electric modulus values were achieved with the blend containing CdS0.9Cu0.1 or CdS0.9Zn0.1. Kind of filler affected the capacitance properties of the host blended polymer. Throughout all energy ranges, the doped blended polymers exhibited higher linear attenuation coefficient (LAC) and mass attenuation coefficient (MAC) values than the undoped blended polymer, irrespective of the type of fillers used. The half-value layer (HVL) and tenth-value layer (TVL) values of the filled blends decreased as the host blend was infused with nanofillers. The FNRCS value of the host blend increased following loading with CdS0.9M0.1.