Open AccessDropping in electrospinning process: A general strategy for fabrication of microspheres
Author(s) -
Leigen Liu,
Yanqing Liu,
Yunyu Li,
Yue Shen,
JiHuan He
Publication year - 2021
Publication title -
thermal science/thermal science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.339
H-Index - 43
eISSN - 2334-7163
pISSN - 0354-9836
DOI - 10.2298/tsci191228025l
Subject(s) - fabrication , electrospinning , jet (fluid) , materials science , microsphere , acceleration , process (computing) , polymer , electrohydrodynamics , volumetric flow rate , nanotechnology , mechanics , composite material , electrode , chemical engineering , physics , classical mechanics , computer science , pathology , engineering , operating system , quantum mechanics , medicine , alternative medicine
The dropping mechanism in the electrospinning process is elucidated. A moving jet becomes thinner at the initial stage due to the acceleration caused by the electrostatic force. When the jet diameter reaches a threshold, beyond which the jet breaks into drops and daughter jets, dropping occurs. The drops will finally form microspheres. Effects of applied voltage, flow rate, polymer?s concentration, and receptor?s distance on the dropping process are theoretically analyzed and experimentally verified. This paper gives a general strategy for fabrication of smooth fiber, microspheres, and their mixture.