access icon free Preparation and dielectric properties of silver@poly(vinyl pyrrolidone)/poly(vinylidene fluoride) composites

Silver@poly(vinyl pyrrolidone) (Ag@PVP) core–shell nanoparticles are synthesised via a one-step method. Ag@PVP/poly(vinylidene fluoride) (PVDF) composites with desirable dielectric properties were reported. It was found that the dielectric losses for Ag@PVP/PVDF composites were rather low similar to that of pure PVDF because of the insulating PVP coating. The Ag@PVP/PVDF with PVP of lower molecular weights exhibited more desirable dielectric properties than those with PVP of higher molecular weights. PVP can offer interesting permittivity enhancements without significantly adversely affecting the dielectric losses of the PVDF matrix. The results of this work make it possible to obtain the percolative composites with low dielectric loss and high permittivity by using Ag@PVP through simple methods.

Inspec keywords: core-shell nanostructures; percolation; nanofabrication; filled polymers; nanoparticles; insulating coatings; molecular weight; permittivity; particle reinforced composites; dielectric losses; nanocomposites; polymer films; silver

Other keywords: insulating PVP coating; core-shell nanoparticles; dielectric losses; silver-poly(vinyl pyrrolidone)-poly(vinylidene fluoride) composites; permittivity; molecular weights; Ag; percolative composites; PVDF

Subjects: Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials; Preparation of reinforced polymers and polymer-based composites; Dielectric loss and relaxation; Other methods of nanofabrication; Dielectric permittivity

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Errata
An Erratum has been published for this content:
Erratum: ‘Preparation and dielectric properties of silver@poly(vinyl pyrrolidone)/poly(vinylidene fluoride) composites’