• AC GANESHKUMAR

Abstract A new nanocomposite polymer electrolyte based on poly (caprolactone) (PCL)-ZnTr dispersed with ceramic filler (Fe2O3) have been studied for their ionic conductivity and thermal properties. The incorporation of nanofillers will yield polymer electrolytes with enhanced conductivity and mechanical properties. Nanocomposite solid polymer electrolyte films (80–100 μm) were prepared by common solvent-casting method. It was revealed that the incorporating 7 wt.% Fe2O3 filler into PCL: ZnTr polymer electrolyte significantly enhanced the ionic conductivity [σRT (max)=2.7×10−5 S cm−1]. It is suggested that the addition of nanofillers leads to a lowering of glass transition temperature and increasing the amorphous phase of PCL and the fraction of PCL-Zn+ complex, corresponding to conductivity enhancement. The differential scanning calorimetry thermograms points towards the decrease of Tg, crystallite melting temperature, and melting enthalpy of PCL: ZnTr: Fe2O3 nanocomposite polymer electrolyte after introducing plasticizers. The reduction of crystallinity and the increase in the amorphous phase content of the electrolyte and morphological, structural changes caused by the filler, also contributes to the observed conductivity enhancement.

Keywords: biodegradable polymer, conductivity, XRD, nanocomposite polymer electrolyte

"Structural, electrical and thermal properties of nanocomposite polymer electrolytes PCL : ZnTr : Fe2O3 for applications in energy storage power devices", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 8, page no.d152-d163, August-2022, Available :http://www.jetir.org/papers/JETIR2208318.pdf

"Structural, electrical and thermal properties of nanocomposite polymer electrolytes PCL : ZnTr : Fe2O3 for applications in energy storage power devices", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 8, page no. ppd152-d163, August-2022, Available at : http://www.jetir.org/papers/JETIR2208318.pdf