Electrohydrodynamic quenching in polymer melt electrospinning

被引：44

作者：

Zhmayev, Eduard ^{[1
]}

Cho, Daehwan ^{[1
]}

Joo, Yong Lak ^{[1
]}

机构：

[1] Cornell Univ, Sch Chem & Biomol Engn, Ithaca, NY 14853 USA

来源：

PHYSICS OF FLUIDS | 2011年 / 23卷 / 07期

基金：

美国国家科学基金会;

关键词：

electrohydrodynamics; electrospinning; heat transfer; jets; polymer melts; quenching (thermal); CONVECTIVE HEAT-TRANSFER; CORONA DISCHARGE; FUNDAMENTAL EQUATIONS; NATURAL-CONVECTION; FORCED-CONVECTION; AIR-FLOW; ENHANCEMENT; PARAMETERS; HUMIDITY; FIELD;

D O I：

10.1063/1.3614560

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Infrared thermal measurements on polymer melt jets in electrospinning have revealed rapid quenching by ambient air, an order of magnitude faster than predicted by the classical Kase and Matsuo correlation. This drastic heat transfer enhancement can be linked to electrohydrodynamic (EHD) effects. Analysis of EHD-driven air flow was performed and included into a comprehensive model for polymer melt electrospinning. The analysis was validated by excellent agreement of both predicted jet radius and temperature profiles with experimental results for electrospinning of Nylon-6 (N6), polypropylene (PP), and polylactic acid (PLA) melts. Based on this analysis, several methods that can be used to inhibit or enhance the quenching are described. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3614560]

引用

页数：8

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