Synthesis of functionalized ZnO nanoflake loaded polyvinylidene fluoride composites with enhanced energy storage properties

Abstract

Polymer composite films are ideal materials for advanced energy storage capacitor in electrical systems. Therefore herein, we fabricated a novel series of polyvinylidene fluoride (PVDF) based composites embedded with well dispersed ZnO@APTES {surface modified zinc oxide with (3‐Aminopropyl) triethoxysilane (APTES)} nanoflake (0, 20, 30, 40, 50) vol% through solution casting method. Hydrothermally synthesized two‐dimensional ZnO was pre‐treated with H2O2 and surface modified with APTES for perfect distribution of nanoflake into PVDF matrix. Surface modification and high aspect ratio morphology of ZnO@APTES enhanced the interfacial interaction between organic PVDF and inorganic ZnO through reduction in heterogeneity between them. Surface functionalization reduced the dielectric loss and improved the overall energy storage performance. Investigation of electrical properties proclaimed incorporating 30 Vol% ZnO@APTES in PVDF as optimized loading due to its appreciable Wrec (recoverable energy density) about 3.2 J/cm3. Relative comparison of the energy storage density (Wrec) of PVDF/ZnO@APTES (30) vol% with recent published works established its enhanced capacitive response and its future application in energy storing portable device.

Piezoelectric fluorinated polymer composites: A review on coupling agents at the filler/matrix interface

“…Most of the time, silanes are first bonded to ceramic fillers to promote dispersion and stabilize the suspension of the particles in the solvent. A pre‐treatment of ceramic fillers with H 2 O 2 can be performed 143 . Alkoxy‐silanes are well known to form strong bonds with ceramic surfaces via condensation reactions (Figure 3).…”

“…A pre-treatment of ceramic fillers with H 2 O 2 can be performed. 143 Alkoxy-silanes are well known to form strong bonds with ceramic surfaces via condensation reactions (Figure 3). Silane CAs were used by Runt et al in 1-3 PZT/epoxy composite, 144 and were shown to improve the stress transfer in the composite and thus, the piezoelectric activity.…”

Two-Dimensional Metal-Organic Framework Incorporated Highly Polar PVDF for Dielectric Energy Storage and Mechanical Energy Harvesting

“…Different techniques like surface modification of fillers [ 21 ], formation of core-shell fillers [ 22 ], etc., have been explicitly explored in this regard in order to strengthen this interfacial interaction and hence improve the polarity of PVDF-based composites [ 21 , 22 , 23 ]. These surface or interface modification techniques require difficult chemical routes.…”

Influence of active, nano, and functionalized zinc oxide particles on the mechanical, cytotoxicity, and thermal stability of carbon black filled SBR/NR blends

“…NZnO has a low particle size and high surface area (7-10 m 2 /g) based on the method of synthesis and these factors can facilitate the vulcanization reaction by offering an abundance of active sites. 20 In addition, the nanoparticles' tiny size permits improved dispersion within the rubber matrix at lower phr loading, resulting in a more uniform crosslinking density and enhanced mechanical qualities of the final blend. NZnO can be a highly effective activator in SBR/NR blends, resulting in enhanced mechanical characteristics and overall blend performance.…”

“…NZnO can improve the mechanical qualities of SBR/NR blends, such as tensile strength and elongation at break. NZnO has a low particle size and high surface area (7–10 m 2 /g) based on the method of synthesis and these factors can facilitate the vulcanization reaction by offering an abundance of active sites 20 . In addition, the nanoparticles' tiny size permits improved dispersion within the rubber matrix at lower phr loading, resulting in a more uniform crosslinking density and enhanced mechanical qualities of the final blend.…”