New hydrophobic materials based on poly(tetrafluoroethylene-co-vinylidene fluoride) fiber
- Authors: Buznik V.M.1,2, Volfkovich Y.M.3, Gryaznov V.I.4, Dvoretskaya O.V.3, Smulskaya M.A.5, Sosenkin V.E.3, Timashev P.S.6, Ivanov V.K.7, Fomkin A.A.3, Yurkov G.Y.2
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Affiliations:
- All-Russian Scientific Research Institute of Aviation Materials
- Baikov Institute of Metallurgy and Materials Science
- Frumkin Institute of Physical Chemistry and Electrochemistry
- National Institute of Aviation Technologies
- Karpov Institute of Physical Chemistry
- Institute on Laser and Information Technologies
- Kurnakov Institute of General and Inorganic Chemistry
- Issue: Vol 7, No 2 (2016)
- Pages: 292-299
- Section: New Technologies for Obtaining and Processing Materials
- URL: https://journals.rcsi.science/2075-1133/article/view/205006
- DOI: https://doi.org/10.1134/S2075113316020064
- ID: 205006
Cite item
Abstract
The structural features of poly(tetrafluoroethylene-co-vinylidene fluoride) (F42) nonwovens with electrospun fibers were studied by scanning electron microscopy (SEM), atomic force microscopy (AFM), and standard contact porosimetry (SCP). Thermal pressing modification of polymeric nonwovens was considered. Such modification allows variation in their surface morphology and water wettability of these surfaces, which demonstrates the possibility for preparation of materials with a wetting gradient. For the starting and modified samples, we studied in detail how the contact angle evolves with an increase in the aqueous phase contact time, as well as how the wettability of materials immersed in water changes after repeated crystallization and melting of water. The morphological structural features of nonwovens formed by poly(tetrafluoroethylene-co-vinylidene fluoride) microfibers were revealed. The method for the thermal pressing modification of materials was proposed and the effects of modification on the structures, wettability, and water sorption of materials were studied. The materials were found to be highly hydrophobic and promising for the design of samples with gradient wettability.
About the authors
V. M. Buznik
All-Russian Scientific Research Institute of Aviation Materials; Baikov Institute of Metallurgy and Materials Science
Author for correspondence.
Email: bouznik@ngs.ru
Russian Federation, ul. Radio 17, Moscow, 105005; Leninskii pr. 49, Moscow, 119991
Yu. M. Volfkovich
Frumkin Institute of Physical Chemistry and Electrochemistry
Author for correspondence.
Email: yuvolf40@mail.ru
Russian Federation, Leninskii pr. 31, building 4, Moscow, 119071
V. I. Gryaznov
National Institute of Aviation Technologies
Author for correspondence.
Email: GryaznovV@ya.ru
Russian Federation, ul. Kirovogradskaya 3, Moscow, 117587
O. V. Dvoretskaya
Frumkin Institute of Physical Chemistry and Electrochemistry
Author for correspondence.
Email: O.V.Dvoretskaya@gmail.com
Russian Federation, Leninskii pr. 31, building 4, Moscow, 119071
M. A. Smulskaya
Karpov Institute of Physical Chemistry
Email: gy_yurkov@mail.ru
Russian Federation, per. Obukha 3, Moscow, 105064
V. E. Sosenkin
Frumkin Institute of Physical Chemistry and Electrochemistry
Author for correspondence.
Email: vsosenkin@mail.ru
Russian Federation, Leninskii pr. 31, building 4, Moscow, 119071
P. S. Timashev
Institute on Laser and Information Technologies
Author for correspondence.
Email: peter.Timashev@ilitras.troitsk.ru
Russian Federation, ul. Pionerskaya 2, Troitsk, Moscow oblast, 142092
V. K. Ivanov
Kurnakov Institute of General and Inorganic Chemistry
Author for correspondence.
Email: van@igic.ras.ru
Russian Federation, Leninskii pr. 31, Moscow, 119991
A. A. Fomkin
Frumkin Institute of Physical Chemistry and Electrochemistry
Author for correspondence.
Email: Fomkinaa@mail.ru
Russian Federation, Leninskii pr. 31, building 4, Moscow, 119071
G. Yu. Yurkov
Baikov Institute of Metallurgy and Materials Science
Author for correspondence.
Email: gy_yurkov@mail.ru
Russian Federation, Leninskii pr. 49, Moscow, 119991