Kaspar Pavel, Sobola Dinara, Částková Klára, Dallaev Rashid, Šťastná Eva, Sedlák Petr, Knápek Alexandr, Trčka Tomáš, Holcman Vladimír
Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 2848/8, 616 00 Brno, Czech Republic.
Central European Institute of Technology BUT, Purkyňova 123, 612 00 Brno, Czech Republic.
Materials (Basel). 2021 Mar 15;14(6):1428. doi: 10.3390/ma14061428.
Modern material science often makes use of polyvinylidene fluoride thin films because of various properties, like a high thermal and chemical stability, or a ferroelectric, pyroelectric and piezoelectric activity. Fibers of this polymer material are, on the other hand, much less explored due to various issues presented by the fibrous form. By introducing carbon nanotubes via electrospinning, it is possible to affect the chemical and electrical properties of the resulting composite. In the case of this paper, the focus was on the further improvement of interesting polyvinylidene fluoride properties by incorporating carbon nanotubes, such as changing the concentration of crystalline phases and the resulting increase of the dielectric constant and conductivity. These changes in properties have been explored by several methods that focused on a structural, chemical and electrical point of view. The resulting obtained data have been documented to create a basis for further research and to increase the overall understanding of the properties and usability of polyvinylidene fluoride fiber composites.
现代材料科学常常利用聚偏二氟乙烯薄膜，这是因为它具有多种特性，如高热稳定性和化学稳定性，以及铁电、热释电和压电活性。另一方面，由于纤维形态带来的各种问题，这种聚合物材料的纤维很少被研究。通过静电纺丝引入碳纳米管，可以影响所得复合材料的化学和电学性能。在本文中，重点是通过掺入碳纳米管进一步改善聚偏二氟乙烯的有趣特性，例如改变结晶相的浓度以及由此导致的介电常数和电导率的增加。已经通过几种从结构、化学和电学角度进行研究的方法探索了这些性能变化。所获得的数据已被记录下来，为进一步研究奠定基础，并增进对聚偏二氟乙烯纤维复合材料性能和实用性的全面理解。
