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Comprehensive Characterization of PVDF Nanofibers at Macro- and Nanolevel

This study is focused on the characterization and investigation of polyvinylidene fluoride (PVDF) nanofibers from the point of view of macro- and nanometer level. The fibers were produced using electrostatic spinning process in air. Two types of fibers were produced since the collector speed (300 rp...

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Autores principales: Pisarenko, Tatiana, Papež, Nikola, Sobola, Dinara, Ţălu, Ştefan, Částková, Klára, Škarvada, Pavel, Macků, Robert, Ščasnovič, Erik, Kaštyl, Jaroslav
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8839271/
https://www.ncbi.nlm.nih.gov/pubmed/35160582
http://dx.doi.org/10.3390/polym14030593
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author Pisarenko, Tatiana
Papež, Nikola
Sobola, Dinara
Ţălu, Ştefan
Částková, Klára
Škarvada, Pavel
Macků, Robert
Ščasnovič, Erik
Kaštyl, Jaroslav
author_facet Pisarenko, Tatiana
Papež, Nikola
Sobola, Dinara
Ţălu, Ştefan
Částková, Klára
Škarvada, Pavel
Macků, Robert
Ščasnovič, Erik
Kaštyl, Jaroslav
author_sort Pisarenko, Tatiana
collection PubMed
description This study is focused on the characterization and investigation of polyvinylidene fluoride (PVDF) nanofibers from the point of view of macro- and nanometer level. The fibers were produced using electrostatic spinning process in air. Two types of fibers were produced since the collector speed (300 rpm and 2000 rpm) differed as the only one processing parameter. Differences in fiber’s properties were studied by scanning electron microscopy (SEM) with cross-sections observation utilizing focused ion beam (FIB). The phase composition was determined by Fourier-transform infrared spectroscopy (FTIR) and Raman spectroscopy. The crystallinity was determined by differential scanning calorimetry (DSC), and chemical analysis of fiber’s surfaces and bonding states were studied using X-ray photoelectron spectroscopy (XPS). Other methods, such as atomic force microscopy (AFM) and piezoelectric force microscopy (PFM), were employed to describe morphology and piezoelectric response of single fiber, respectively. Moreover, the wetting behavior (hydrophobicity or hydrophilicity) was also studied. It was found that collector speed significantly affects fibers alignment and wettability (directionally ordered fibers produced at 2000 rpm almost super-hydrophobic in comparison with disordered fibers spun at 300 rpm with hydrophilic behavior) as properties at macrolevel. However, it was confirmed that these differences at the macrolevel are closely connected and originate from nanolevel attributes. The study of single individual fibers revealed some protrusions on the fiber’s surface, and fibers spun at 300 rpm had a core-shell design, while fibers spun at 2000 rpm were hollow.
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spelling pubmed-88392712022-02-13 Comprehensive Characterization of PVDF Nanofibers at Macro- and Nanolevel Pisarenko, Tatiana Papež, Nikola Sobola, Dinara Ţălu, Ştefan Částková, Klára Škarvada, Pavel Macků, Robert Ščasnovič, Erik Kaštyl, Jaroslav Polymers (Basel) Article This study is focused on the characterization and investigation of polyvinylidene fluoride (PVDF) nanofibers from the point of view of macro- and nanometer level. The fibers were produced using electrostatic spinning process in air. Two types of fibers were produced since the collector speed (300 rpm and 2000 rpm) differed as the only one processing parameter. Differences in fiber’s properties were studied by scanning electron microscopy (SEM) with cross-sections observation utilizing focused ion beam (FIB). The phase composition was determined by Fourier-transform infrared spectroscopy (FTIR) and Raman spectroscopy. The crystallinity was determined by differential scanning calorimetry (DSC), and chemical analysis of fiber’s surfaces and bonding states were studied using X-ray photoelectron spectroscopy (XPS). Other methods, such as atomic force microscopy (AFM) and piezoelectric force microscopy (PFM), were employed to describe morphology and piezoelectric response of single fiber, respectively. Moreover, the wetting behavior (hydrophobicity or hydrophilicity) was also studied. It was found that collector speed significantly affects fibers alignment and wettability (directionally ordered fibers produced at 2000 rpm almost super-hydrophobic in comparison with disordered fibers spun at 300 rpm with hydrophilic behavior) as properties at macrolevel. However, it was confirmed that these differences at the macrolevel are closely connected and originate from nanolevel attributes. The study of single individual fibers revealed some protrusions on the fiber’s surface, and fibers spun at 300 rpm had a core-shell design, while fibers spun at 2000 rpm were hollow. MDPI 2022-02-01 /pmc/articles/PMC8839271/ /pubmed/35160582 http://dx.doi.org/10.3390/polym14030593 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Pisarenko, Tatiana
Papež, Nikola
Sobola, Dinara
Ţălu, Ştefan
Částková, Klára
Škarvada, Pavel
Macků, Robert
Ščasnovič, Erik
Kaštyl, Jaroslav
Comprehensive Characterization of PVDF Nanofibers at Macro- and Nanolevel
title Comprehensive Characterization of PVDF Nanofibers at Macro- and Nanolevel
title_full Comprehensive Characterization of PVDF Nanofibers at Macro- and Nanolevel
title_fullStr Comprehensive Characterization of PVDF Nanofibers at Macro- and Nanolevel
title_full_unstemmed Comprehensive Characterization of PVDF Nanofibers at Macro- and Nanolevel
title_short Comprehensive Characterization of PVDF Nanofibers at Macro- and Nanolevel
title_sort comprehensive characterization of pvdf nanofibers at macro- and nanolevel
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8839271/
https://www.ncbi.nlm.nih.gov/pubmed/35160582
http://dx.doi.org/10.3390/polym14030593
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