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

共 37 条

[1] Effect of process parameters on the EHD airflow [J].

Ahmedou, Sid'Ahmed Ould ;

Havet, Michel .

JOURNAL OF ELECTROSTATICS, 2009, 67 (2-3) :222-227

[2]

Atten P, 2004, J OPTOELECTRON ADV M, V6, P1023

[3] Electrohydrodynamic plumes in point-plane geometry [J].

Atten, P ;

Malraison, B ;

Zahn, M .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 1997, 4 (06) :710-718

[4] Investigation of forced convective heat transfer enhancement in the presence of an electric field - a finite element analysis [J].

Bandyopadhyay, A ;

Sen, S ;

Sarkar, A ;

Bhattacharyya, S .

INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, 2004, 14 (03) :264-284

[5] CORRELATING EQUATIONS FOR LAMINAR AND TURBULENT FREE CONVECTION FROM A HORIZONTAL CYLINDER [J].

CHURCHILL, SW ;

CHU, HHS .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1975, 18 (09) :1049-1053

[6]

Denn M.M., 1983, Computational Analysis of Polymer Processing

[7] Electrical field and space charge modelling in a viscous fluid flow in a nozzle [J].

Djuric, Z ;

Balachandran, W ;

Wilson, CW .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1998, 31 (17) :2132-2144

[8] Spinning continuous fibers for nanotechnology [J].

Dzenis, Y .

SCIENCE, 2004, 304 (5679) :1917-1919

[9]

Fong H., 2001, STRUCTURE FORMATION

[10] Enhancement of external forced convection by ionic wind [J].

Go, David B. ;

Maturana, Raul A. ;

Fisher, Timothy S. ;

Garimella, Suresh V. .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2008, 51 (25-26) :6047-6053

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