THERMAL SCIENCE

International Scientific Journal

Thermal Science - Online First

Ling Lin

,

Yan-Qing Liu

,

Yun-Yu Li

,

Yue Shen

,

Ji-Huan He

online first only

Fabrication of PVDF/PES nanofibers with unsmooth fractal surfaces by electrospinning: A general strategy and formation mechanism

ABSTRACT
Smaller fibers are welcome in many applications due to larger surface area, but there is a threshold for smallest fibers for a fixed spinning system. In order to further improve surface area, hierarchical structure is considered in this paper using electrospinning. A bi-solvent system is used in our experiment for fast solvent evaporation. Unsmooth nanofibers are obtained, and the formation mechanism is elucidated.
KEYWORDS
electrospinning, sudden solvent evaporation, surface energy, geometric potential, hierarchical structure
PAPER SUBMITTED: 2019-12-01
PAPER REVISED: 2020-06-20
PAPER ACCEPTED: 2020-06-20
PUBLISHED ONLINE: 2021-01-31
DOI REFERENCE: https://doi.org/10.2298/TSCI191201024L
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Fabrication of PVDF/PES nanofibers with unsmooth fractal surfaces by electrospinning: A general strategy and formation mechanism