Three-Dimensional Model of Whipping Motion in the Processing of Microfibers

详细信息    查看全文

• 作者：Yafeng Sun ; Yongchun Zeng ; Xinhou Wang
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2011
• 出版时间：January 19, 2011
• 年：2011
• 卷：50
• 期：2
• 页码：1099-1109
• 全文大小：526K
• 年卷期：v.50,no.2(January 19, 2011)
• ISSN：1520-5045

文摘

Electrospinning and melt blowing are the most commonly used processes to produce microfibers from extruded polymer solution or melt. The present work deals with the dynamic modeling of the whipping instability and related processes during production of microfibers. A bead-viscoelastic element fiber model is employed in modeling three-dimensional paths of the fiber motion in the processes of electrospinning and melt blowing. The simulation results provide a reasonable comparison between these two processes and point out that the Coulomb force in electrospinning always has the function to sustain and increase the bending instability; while in the melt blowing process, whether the aerodynamic force increases the bending instability or not depends on several factors.