Synergistic Effects of MWCNT–MXene Nanohybrids on Dielectric and Ferroelectric Properties of PVDF/PMMA Blend Composites

High Resolution Image Download MS PowerPoint Slide The solution casting method is used to create flexible energy storage films composed of PVDF/PMMA-MWCNT–MXene hybrid nanocomposites (HNCs). The structural and morphological investigations demonstrate the composition of thin films. It also confirms the presence of the PVDF β-phase. The thermal investigation for the 15% nanohybrid composite revealed 15.35% crystallinity. The band gap energy values decreased from 3.07 to 2.12 eV as the concentration of the filler increased. The high dielectric constant results of 246 at 100 Hz for the 15 wt % composite were found to be an indication of increased interfacial polarization. The maximum energy density and power density at 15 wt % are 3.39 J/cm 3 and 11.82 MW/cm 3, respectively. The electrical conductivity increases from 10 –9 to 10 –3 S cm –1 for the 15 wt % composite at 100 Hz. An improved interface interaction between the MWCNT–MXene nanohybrids and PVDF macromolecular chains results in excellent electrical characteristics. The rise in residual polarization can be prevented by using PMMA. This work presents a feasible approach to produce materials that are particularly effective at storing energy in capacitors adding MXene–MWCNT hybrids (MCHs) to the polymer blends.