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可控气体逆流静电纺丝过程的三维模型

Three-Dimensional Model for Electrospinning Processes in Controlled Gas Counterflow.

作者信息

Lauricella Marco, Pisignano Dario, Succi Sauro

机构信息

Istituto per le Applicazioni del Calcolo CNR , Via dei Taurini 19, 00185 Rome, Italy.

Dipartimento di Matematica e Fisica "Ennio De Giorgi", University of Salento , via Arnesano, 73100 Lecce, Italy.

出版信息

J Phys Chem A. 2016 Jul 14;120(27):4884-92. doi: 10.1021/acs.jpca.5b12450. Epub 2016 Feb 22.

DOI:10.1021/acs.jpca.5b12450
PMID:26859532
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4947972/
Abstract

We study the effects of a controlled gas flow on the dynamics of electrified jets in the electrospinning process. The main idea is to model the air drag effects of the gas flow by using a nonlinear Langevin-like approach. The model is employed to investigate the dynamics of electrified polymer jets at different conditions of air drag force, showing that a controlled gas counterflow can lead to a decrease of the average diameter of electrospun fibers, and potentially to an improvement of the quality of electrospun products. We probe the influence of air drag effects on the bending instabilities of the jet and on its angular fluctuations during the process. The insights provided by this study might prove useful for the design of future electrospinning experiments and polymer nanofiber materials.

摘要

我们研究了在静电纺丝过程中受控气流对带电射流动力学的影响。主要思路是通过使用类似非线性朗之万方法来模拟气流的空气阻力效应。该模型用于研究在不同空气阻力条件下带电聚合物射流的动力学，结果表明受控的气体逆流可导致电纺纤维平均直径减小，并有可能提高电纺产品的质量。我们探究了空气阻力效应在该过程中对射流弯曲不稳定性及其角度波动的影响。这项研究提供的见解可能对未来静电纺丝实验和聚合物纳米纤维材料的设计有用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75c0/4947972/b444d96af35b/jp-2015-12450t_0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75c0/4947972/f80676f497d7/jp-2015-12450t_0002.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75c0/4947972/95b778804a01/jp-2015-12450t_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75c0/4947972/3ff26d5827e3/jp-2015-12450t_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75c0/4947972/f00bc38ff8a2/jp-2015-12450t_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75c0/4947972/4271e9af9091/jp-2015-12450t_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75c0/4947972/0fd036b9b01a/jp-2015-12450t_0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75c0/4947972/b444d96af35b/jp-2015-12450t_0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75c0/4947972/f80676f497d7/jp-2015-12450t_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75c0/4947972/a1a265def0bd/jp-2015-12450t_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75c0/4947972/95b778804a01/jp-2015-12450t_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75c0/4947972/3ff26d5827e3/jp-2015-12450t_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75c0/4947972/f00bc38ff8a2/jp-2015-12450t_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75c0/4947972/4271e9af9091/jp-2015-12450t_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75c0/4947972/0fd036b9b01a/jp-2015-12450t_0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75c0/4947972/b444d96af35b/jp-2015-12450t_0009.jpg

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Materials (Basel). 2021 Oct 22;14(21):6288. doi: 10.3390/ma14216288.
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本文引用的文献

1
Sub-ms dynamics of the instability onset of electrospinning.静电纺丝不稳定性起始的亚毫秒动力学
Soft Matter. 2015 May 7;11(17):3424-31. doi: 10.1039/c4sm02708f.
2
Electrospinning versus fibre production methods: from specifics to technological convergence.静电纺丝与纤维生产方法：从具体到技术融合。
Chem Soc Rev. 2012 Jul 7;41(13):4708-35. doi: 10.1039/c2cs35083a. Epub 2012 May 22.
3
Controlling the fiber diameter during electrospinning.在静电纺丝过程中控制纤维直径。
聚合物松弛时间对静电纺丝过程的影响：数值研究
Polymers (Basel). 2017 Oct 12;9(10):501. doi: 10.3390/polym9100501.
Phys Rev Lett. 2003 Apr 11;90(14):144502. doi: 10.1103/PhysRevLett.90.144502. Epub 2003 Apr 8.