Investigations on dislocation density and strain of polyaniline withWO₃nanocomposites

Abstract

Polyaniline is equipped by in-situ chemical oxidative polymerization method using ammonium persulphate as an oxidizing agent. The prepared Polyaniline is doped with the nano particles of WO3 at dissimilar weight percentage. The nano-compsites are characterized using XRD and SEM. The crystallite sizes are obtainvia Debye-Scherer relation from the XRD spectra for nano-composites of different weight percentages. The crystallite sizes of nano-particles decreased with increase in weight percentage of WO3 with the PANI. The dislocation density due to the defects in the crystals of nano-composites is obtained. The dislocation density increased as wt % of WO3 in PANI increased. Further, the strain produce at the grain boundary is obtained by FWHM of the XRD spectra. The strain of nano-composites at the grain boundary increased as dislocation density increased. Strain at the grain boundary is also increased as weight percent of WO3 increased in the nano-composites of PANI. Further, the surface morphology of the nano-composites of PANI/WO3 at different weight percentages were observed using SEM. The particles are appeared granular in shape and size. The agglomeration in the sizes of the nano-composites was observed as weight percent of WO3 with PANI increased.

The impact of chemical treatment and gamma-ray irradiation on the okra hessian cloth reinforced high-density polyethylene composites

“…Therefore, the irradiated sample IOHPC5 exhibits lower crystallinity than that of the treated sample TOHPC. 24 The crystallinity of treated fiber increases by alkali treatment because alkali treatment removes the impurities from the fiber surface.…”