Study on uniformity of multi-needle electrostatic spinning by auxiliary flow field

IF 1.5 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Micro & Nano Letters Pub Date : 2024-05-20 DOI:10.1049/mna2.12200

Rongguang Zhang, Xun Chen, Han Wang, Jun Zeng, Xuanzhi Zhang, Xiaojie Chen

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Abstract

Multi-needle electrospinning is a simple and general method for mass preparation of nanofiber membrane, which has great industrial potential. However, the bending instability produced in the electrospinning process makes that the deposition uniformity of the nanofiber is still a big concern, resulting in non-uniform nanofiber membrane, which seriously affects the application of electrospun membrane in environmental filtration, new energy and medical fields. In order to improve the uniformity of nanofiber deposition in multi-needle electrospinning, an auxiliary flow field system (AFF) is proposed, which can effectively improve the uniformity of nanofiber deposition. After image processing, the uniformity of nanofiber deposition is quantified with the index of grey distribution, and the effectiveness of this method is verified. Combined with the multi-physical field analysis, the influence mechanism of cross-wind field on the uniformity of fibre deposition was revealed. By optimizing the experimental parameters, the non-uniformity of nanofiber deposition was reduced by 49.19%. Based on multi-needle electrospinning technology, a reliable idea (AFF) and experimental basis are provided for the uniform preparation of nanofiber membrane.

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利用辅助流场研究多针静电纺丝的均匀性

多针电纺是大规模制备纳米纤维膜的一种简单而通用的方法，具有很大的工业潜力。然而，电纺过程中产生的弯曲不稳定性使得纳米纤维的沉积均匀性仍是一大问题，导致纳米纤维膜不均匀，严重影响了电纺膜在环保过滤、新能源和医疗等领域的应用。为了提高多针电纺中纳米纤维沉积的均匀性，提出了一种辅助流场系统（AFF），它能有效提高纳米纤维沉积的均匀性。经过图像处理后，用灰色分布指数量化了纳米纤维沉积的均匀性，验证了该方法的有效性。结合多物理场分析，揭示了横风场对纤维沉积均匀性的影响机理。通过优化实验参数，纳米纤维沉积的不均匀性降低了 49.19%。基于多针电纺技术，为纳米纤维膜的均匀制备提供了可靠的思路（AFF）和实验依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Micro & Nano Letters 工程技术-材料科学：综合

CiteScore

3.30

自引率

0.00%

发文量

审稿时长

2.8 months

期刊介绍： Micro & Nano Letters offers express online publication of short research papers containing the latest advances in miniature and ultraminiature structures and systems. With an average of six weeks to decision, and publication online in advance of each issue, Micro & Nano Letters offers a rapid route for the international dissemination of high quality research findings from both the micro and nano communities. Scope Micro & Nano Letters offers express online publication of short research papers containing the latest advances in micro and nano-scale science, engineering and technology, with at least one dimension ranging from micrometers to nanometers. Micro & Nano Letters offers readers high-quality original research from both the micro and nano communities, and the materials and devices communities. Bridging this gap between materials science and micro and nano-scale devices, Micro & Nano Letters addresses issues in the disciplines of engineering, physical, chemical, and biological science. It places particular emphasis on cross-disciplinary activities and applications. Typical topics include: Micro and nanostructures for the device communities MEMS and NEMS Modelling, simulation and realisation of micro and nanoscale structures, devices and systems, with comparisons to experimental data Synthesis and processing Micro and nano-photonics Molecular machines, circuits and self-assembly Organic and inorganic micro and nanostructures Micro and nano-fluidics