Detail publikace

Comprehensive characterization of PVDF nanofibers at macro- and nanolevel

PISARENKO, T. PAPEŽ, N. SOBOLA, D. ŢĂLU, Ş. ČÁSTKOVÁ, K. ŠKARVADA, P. MACKŮ, R. ŠČASNOVIČ, E. KAŠTYL, J.

Originální název

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

AFM; core-shell; DSC; electrostatic spinning; FIB; FTIR; hollow; hydrophobic; hydrophilic; nanofibers; PFM; PVDF; SEM; STEM; Raman spectroscopy; XPS

Autoři

PISARENKO, T.; PAPEŽ, N.; SOBOLA, D.; ŢĂLU, Ş.; ČÁSTKOVÁ, K.; ŠKARVADA, P.; MACKŮ, R.; ŠČASNOVIČ, E.; KAŠTYL, J.

Vydáno

1. 2. 2022

Nakladatel

MDPI

Místo

BASEL

ISSN

2073-4360

Periodikum

Polymers

Ročník

Číslo

Stát

Švýcarská konfederace

Strany od

593

Strany do

610

Strany počet

URL

https://www.mdpi.com/2073-4360/14/3/593

Plný text v Digitální knihovně

http://hdl.handle.net/11012/203910

BibTex

@article{BUT176392,
  author="Tatiana {Pisarenko} and Nikola {Papež} and Dinara {Sobola} and Ştefan {Ţălu} and Klára {Částková} and Pavel {Škarvada} and Robert {Macků} and Erik {Ščasnovič} and Jaroslav {Kaštyl}",
  title="Comprehensive characterization of PVDF nanofibers at macro- and nanolevel",
  journal="Polymers",
  year="2022",
  volume="14",
  number="3",
  pages="593--610",
  doi="10.3390/polym14030593",
  issn="2073-4360",
  url="https://www.mdpi.com/2073-4360/14/3/593"
}