National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 199 Ren-Ai Road, Suzhou 215123, China.
Recent Pat Nanotechnol. 2020;14(1):42-45. doi: 10.2174/1872210513666191107122528.
The patented bubble electrospinning, which is a simple and effective technique for mass-production of polymer nanofibers, has been studying extensively, but it is still under development. In the bubble electrospinning, multiple jets move from the positive electrode to the receptor, a long distance between the two electrodes is needed to guarantee complete solvent evaporation, as a result a relative high voltage is needed.
The aim of the present study is to use an auxiliary electrode and an auxiliary air flow to improve bubble electrospinning with lower voltage and higher output than those by its traditional one.
The modification of the bubble electrospinning with an auxiliary electrode and an auxiliary airflow is used to fabricate nanofibers. The auxiliary electrode is close to the positive electrode. The experiment was carried out at room temperature with 8%PVA solution. The result was analyzed with a S4800 cold field scanning electron microscope (SEM, Hitachi S-4800, Tokyo, Japan).
The auxiliary electrode can generate a strong induced electric field force. With the action of airflow, the jets will fly to the receptor instead of the auxiliary electrode.
Both auxiliary electrode and auxiliary airflow are two important factors affecting the spinning process. It can reduce the spinning voltage and improve spinning efficiency.
专利气泡静电纺丝是一种简单有效的聚合物纳米纤维大规模生产技术，已经得到了广泛的研究，但仍在开发中。在气泡静电纺丝中，多个射流从正极移动到接收器，为保证溶剂完全蒸发，两个电极之间需要有较长的距离，因此需要较高的电压。
本研究旨在使用辅助电极和辅助气流来改进气泡静电纺丝，以获得比传统方法更低的电压和更高的输出。
使用辅助电极和辅助气流对气泡静电纺丝进行改性来制备纳米纤维。辅助电极靠近正极。实验在室温下进行，使用 8%PVA 溶液。使用 S4800 冷场扫描电子显微镜（SEM，日立 S-4800，东京，日本）对结果进行分析。
辅助电极可以产生很强的感应电场力。在气流的作用下，射流将飞向接收器而不是辅助电极。
辅助电极和辅助气流是影响纺丝过程的两个重要因素。它可以降低纺丝电压，提高纺丝效率。
