Experimental investigation of the governing parameters in the electrospinning of polymer solutions
Experimental investigation of the governing parameters in the electrospinning of polymer solutions
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DOI：
10.1016/j.polymer.2004.01.024
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发表时间：
2004-03-15
期刊：
影响因子：
4.6
通讯作者：
Yarin, AL
中科院分区：
文献类型：
--
作者：
Theron, SA;Zussman, E;Yarin, AL
在静电纺丝过程中，当粘弹性聚合物溶液的液滴经受高压静电场时，形成具有亚微米级直径的聚合物纳米纤维。我们报告的实验工作的静电纺丝过程中，不同的工艺参数的电流和体积和表面电荷密度的聚合物射流的影响进行了测量。测定了剪切粘度、表面张力、弛豫时间、电导率和介电常数。为此，制备了聚环氧乙烷（PEO）、聚丙烯酸（PAA）、聚乙烯醇（PVA）、聚氨酯（PU）和聚己内酯（PCL）的不同溶液，并进行静电纺丝。所研究的控制参数是施加的电压（V）、溶液流速（Q）、聚合物重量浓度（C）、聚合物的分子量（M）、距地距离（H）以及在某些溶液中的乙醇浓度（C-et）。(C)2004爱思唯尔有限公司保留所有权利。
In the electrospinning process, polymer nanofibers with submicron-scale diameters are formed when a droplet of a viscoelastic polymer solution is subjected to a high voltage electrostatic field. We report the experimental work on the electrospinning process in which the influence of different process parameters on the electric current and volume and surface charge density in the polymer jet was measured. Shear viscosity, surface tension, relaxation time, and the electric conductivity and permittivity were measured as well. For this purpose different solutions of polyethylene oxide (PEO), polyacrylic acid (PAA), polyvinyl alcohol (PVA), polyurethane (PU) and polycaprolactone (PCL) were prepared and underwent electrospinning. The governing parameters investigated were the applied voltage (V), the solution flow rate (Q), the polymer weight concentration (C), the molecular weight of the polymer (M), the nozzle-to-ground distance (H) and, in some solutions, the concentration of ethanol (C-et). (C) 2004 Elsevier Ltd. All rights reserved.