Abstract
Properties of nonwoven materials based on copolymer of tetrafluoroethylene and vinyldenefluoride produced by aerodynamic formation in a turbulent gas flow are investigated in the paper. By means of scanning microscopy, it is shown that synthesized nonwoven materials are characterized by high porosity and complicated spatial organization. By means of X-ray diffraction, infrared spectroscopy, combination scattering spectroscopy, thermogravimetric analysis, and differential scanning calorimetry, it is shown that fibers that form the nonwoven material are characterized by a crystal structure typical of ferrielectric phases. The quantitative content of residual solvents in the formed materials is determined. By using a mobile cell culture, it is shown that the produced nonwoven materials are not toxic and can be used for medical purposes.
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Abbreviations
- AF:
-
aerodynamic formation
- EF:
-
electric formation
- PVDF:
-
polyvinyldenefluoride
- TFE:
-
tetrafluoroethylene
- VDF/TFE:
-
copolymer of vinyldenefluoride and tetrafluoroethylene
- VDF/TrFE:
-
copolymer of vinyldenfluoride and tetrafluoroethylene
- GCh:
-
gas chromatography
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Gosudarstvennaya farmakopeya Rossiiskoi Federatsii OFS 42-0057-07 “Ostatochnye organicheskie rastvoriteli” (State Pharmacopeia of Russian Federation OFS 42-0057-07 “Residual Organic Solvents”).
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Original Russian Text © E.N. Bol’basov, S.I. Tverdokhlebov, V.M. Busnik, A.V. Pustovoitov, 2014, published in Materialovedenie, 2014, No. 6, pp. 38–47.
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Bol’basov, E.N., Tverdokhlebov, S.I., Busnik, V.M. et al. Structure and properties of nonwoven materials based on copolymer of tetrafluoroethylene and vinyldenefluoride produced by aerodynamic formation. Inorg. Mater. Appl. Res. 6, 22–31 (2015). https://doi.org/10.1134/S2075113315010037
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DOI: https://doi.org/10.1134/S2075113315010037