Accurate fabrication of aligned nanofibers via a double-nozzle near-field electrospinning

• Main Authors: Xu Guojie, Wang Han, Wang Zhifeng, Zhang Jiarong, Chen Rouxi, Zhu Ziming, Chen Xindu, Lin Yaju, Zhao Yixiang, Li Jianting, Chen Meixi, Li Yang, Xin Zhengyi, Lin Hongxin
• Format: Article
• Language: English
• Published: VINCA Institute of Nuclear Sciences 2019-01-01
• Series: Thermal Science
• Subjects: near-field electrospinning; double-nozzle; aligned nanofibers; process; crimped fibers
• Online Access: http://www.doiserbia.nb.rs/img/doi/0354-9836/2019/0354-98361904143X.pdf
• ISSN: 0354-9836

The near-field electrospinning is considered as one of the most effective techniques to direct-write aligned fibers which can be applied to various high-tech areas, including energy harvester, tissue engineering, and wearable sensors. For large area aligned pattern printing, the multi-nozzle electrohydrodynamic print-ing is an efficient method to enhance productivity. As a branch of electrohydro-dynamic printing technology, the near-field electrospinning is a crucial concern to make an investigation for the formation of aligned nanofibers. Here we fabricated various nanostructures from beaded fibers to aligned fibers and crimped fibers by the double-nozzle near-field electrospinning process. We found three key parameters affecting the process, including the collector speed, the applied voltage, and the electrode-to-collector distance, and the collector speed is the key factor affecting the crimped frequency. This paper provides a reliable experi-mental basis and theoretical guidance for the multi-nozzle near-field electrospin-ning to accurately direct-write microfibers and nanofibers.