Comprehensive characterization of PVDF nanofibers at macro- and nanolevel

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dc.contributor.authorPisarenko, Tatianacs
dc.contributor.authorPapež, Nikolacs
dc.contributor.authorSobola, Dinaracs
dc.contributor.authorŢălu, Ştefancs
dc.contributor.authorČástková, Kláracs
dc.contributor.authorŠkarvada, Pavelcs
dc.contributor.authorMacků, Robertcs
dc.contributor.authorŠčasnovič, Erikcs
dc.contributor.authorKaštyl, Jaroslavcs
dc.coverage.issue3cs
dc.coverage.volume14cs
dc.date.accessioned2022-02-14T15:59:45Z
dc.date.available2022-02-14T15:59:45Z
dc.date.issued2022-02-01cs
dc.description.abstractThis 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.en
dc.formattextcs
dc.format.extent593-610cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationPolymers. 2022, vol. 14, issue 3, p. 593-610.en
dc.identifier.doi10.3390/polym14030593cs
dc.identifier.issn2073-4360cs
dc.identifier.other176392cs
dc.identifier.urihttp://hdl.handle.net/11012/203910
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofPolymerscs
dc.relation.urihttps://www.mdpi.com/2073-4360/14/3/593cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2073-4360/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectAFMen
dc.subjectcore-shellen
dc.subjectDSCen
dc.subjectelectrostatic spinningen
dc.subjectFIBen
dc.subjectFTIRen
dc.subjecthollowen
dc.subjecthydrophobicen
dc.subjecthydrophilicen
dc.subjectnanofibersen
dc.subjectPFMen
dc.subjectPVDFen
dc.subjectSEMen
dc.subjectSTEMen
dc.subjectRaman spectroscopyen
dc.subjectXPSen
dc.titleComprehensive characterization of PVDF nanofibers at macro- and nanolevelen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-176392en
sync.item.dbtypeVAVen
sync.item.insts2023.03.28 16:54:20en
sync.item.modts2023.03.28 16:15:26en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé keramické materiálycs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. ÚMVI-odbor keramiky a polymerůcs
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav fyzikycs
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