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

Micro & nano letters

article

Hairong Li¹  Jinhui Yang²  Dong Fang²  Lei Liu¹  Jianping Chen¹  Ming Jiang²  Chuanxi Xiong¹ 

[1] School of Materials Science and Engineering, Wuhan Textile University;School of Materials Science and Engineering, Wuhan University of Technology

关键词: silver;    filled polymers;    nanoparticles;    core-shell nanostructures;    nanocomposites;    particle reinforced composites;    nanofabrication;    dielectric losses;    insulating coatings;    polymer films;    molecular weight;    permittivity;    percolation;    silver-poly(vinyl pyrrolidone)-poly(vinylidene fluoride) composites;    core-shell nanoparticles;    dielectric losses;    PVDF;    insulating PVP coating;    molecular weights;    permittivity;    percolative composites;    Ag;   

DOI  :  10.1049/mnl.2016.0300

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

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.

【 授权许可】

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