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Electrospinning from a convex needle with multiple jet toward better controlling and enhanced production rate
Author(s) -
Jahan Israt,
Jadhav Amit,
Wang Lijing,
Wang Xin
Publication year - 2019
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.48014
Subject(s) - electrospinning , nanofiber , materials science , jet (fluid) , production rate , volumetric flow rate , multiphysics , composite material , scaling , polymer , electric field , nanotechnology , mechanics , process engineering , mathematics , physics , finite element method , geometry , engineering , thermodynamics , quantum mechanics
Multiple jet was successfully generated from a convex needle spinneret based on a conventional electrospinning setup. A convex channel was created in the front part of the needle to generate a limited free surface in the electrospinning process. A high flow rate was implemented with more than one polymer jet being produced, resulting in the production rate 2–3 times higher than conventional electrospinning. Finer nanofibers were produced from the convex needle when the applied voltage was 19 kV. The electric field intensity distribution of this spinneret was analyzed and compared with conventional needle spinneret by Comsol Multiphysics modeling. The research work has demonstrated that scaling up the production rate of nanofibers from needle‐based free surface electrospinning is possible. It will benefit further development of electrospinning with enhanced throughput and more precise controlling. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 48014.