Kalimuldina Gulnur, Turdakyn Nursultan, Abay Ingkar, Medeubayev Alisher, Nurpeissova Arailym, Adair Desmond, Bakenov Zhumabay
School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan.
National Laboratory Astana, Institute of Batteries, Nazarbayev University, Nur-Sultan 010000, Kazakhstan.
Sensors (Basel). 2020 Sep 12;20(18):5214. doi: 10.3390/s20185214.
With the increase of interest in the application of piezoelectric polyvinylidene fluoride (PVDF) in nanogenerators (NGs), sensors, and microdevices, the most efficient and suitable methods of their synthesis are being pursued. Electrospinning is an effective method to prepare higher content β-phase PVDF nanofiber films without additional high voltage poling or mechanical stretching, and thus, it is considered an economically viable and relatively simple method. This work discusses the parameters affecting the preparation of the desired phase of the PVDF film with a higher electrical output. The design and selection of optimum preparation conditions such as solution concentration, solvents, the molecular weight of PVDF, and others lead to electrical properties and performance enhancement in the NG, sensor, and other applications. Additionally, the effect of the nanoparticle additives that showed efficient improvements in the PVDF films was discussed as well. For instance, additives of BaTiO, carbon nanotubes, graphene, nanoclays, and others are summarized to show their contributions to the higher piezo response in the electrospun PVDF. The recently reported applications of electrospun PVDF films are also analyzed in this review paper.
随着对压电聚偏氟乙烯（PVDF）在纳米发电机（NGs）、传感器和微器件中应用的兴趣增加，人们正在寻求其最有效和合适的合成方法。静电纺丝是一种无需额外高压极化或机械拉伸就能制备高含量β相PVDF纳米纤维膜的有效方法，因此，它被认为是一种经济可行且相对简单的方法。这项工作讨论了影响制备具有更高电输出的PVDF膜所需相的参数。诸如溶液浓度、溶剂、PVDF的分子量等最佳制备条件的设计和选择可提高NG、传感器及其他应用中的电学性能和性能表现。此外，还讨论了纳米颗粒添加剂对PVDF膜有显著改善作用的影响。例如，总结了钛酸钡、碳纳米管、石墨烯、纳米粘土等添加剂在静电纺PVDF中对更高压电响应的贡献。本文还分析了最近报道的静电纺PVDF膜的应用。
