Nanofiber diameter in electrospinning of polymer solutions: Model and experiment

被引：68

作者：

Stepanyan, R. ^{[1
]}

Subbotin, A. V. ^{[2
]}

Cuperus, L. ^{[1
]}

Boonen, P. ^{[1
]}

Dorschu, M. ^{[1
]}

Oosterlinck, F. ^{[1
]}

Bulters, M. J. H. ^{[1
]}

机构：

[1] DSM Res & Patents, Ctr Mat Sci, POB 18, NL-6160 MD Geleen, Netherlands

[2] Russian Acad Sci, AV Topchiev Petrochem Synth Inst, Moscow 119991, Russia

来源：

POLYMER | 2016年 / 97卷

关键词：

Electrospinning; Nanofibers; Diameter; ELECTRICALLY FORCED JETS; MOLECULAR-WEIGHT; DYNAMICS; NYLON-6;

D O I：

10.1016/j.polymer.2016.05.045

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A model describing nanofiber formation in electrospinning of a polymer solution is proposed. It is shown that the final nanofiber diameter is determined by the dynamics governed by two main competing factors: (i) elongation under the influence of the electric repulsion between the charges on the fiber surface, which is opposed by (ii) the viscoelastic forces growing in the course of time due to evaporation and stopping the fiber elongation and thinning. Both scaling and numerical analyses performed show that the terminal fiber diameter is controlled by the solution viscosity, the specific charge (electric current divided by the spinning throughput) and the evaporation rate. Model predictions are supported well by our own experiments performed on polyamide-6 solutions as well as literature data. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：428 / 439

页数：12

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