Wu Dezhi, Xiao Zhiming, Deng Lei, Sun Yu, Tan Qiulin, Dong Linxi, Huang Shaohua, Zhu Rui, Liu Yifang, Zheng Wanxi, Zhao Yang, Wang Lingyun, Sun Daoheng
School of Aerospace Engineering, Xiamen University, Xiamen 361005, China.
Science and Technology on Electronic Test and Measurement Laboratory, North University of China, Tai Yuan 030051, China.
Nanomaterials (Basel). 2016 Jul 22;6(7):135. doi: 10.3390/nano6070135.
Uniform deposition of nanofibers in the massive electrospinning process is critical in the industrial applications of nanofibers. Tip-Induced Electrospinning (TIE) is a cost-effective large-scale nanofiber-manufacturing method, but it has poor deposition uniformity. An auxiliary conductive electrode connected to the emitting electrode was introduced to improve the deposition uniformity of the nanofibers. The effects of the auxiliary electrode shape, the tilted angles and the position of the boat-like electrode on the electric field distribution, the diameter of the nanofibers, the jet control and the deposition uniformity were explored by using finite element analysis of the electric field and experiments. Experiments showed that the boat-like electrode at 20 mm above the reservoir bottom with a 5° tilted angle helped to decrease the relative deposition error of nanofibers in the greatest extent to about 5.66%, indicating such an auxiliary electrode is a good candidate method to greatly improve the deposition uniformity of nanofibers in massive electrospinning.
在大规模静电纺丝过程中，纳米纤维的均匀沉积对于纳米纤维的工业应用至关重要。尖端诱导静电纺丝（TIE）是一种经济高效的大规模纳米纤维制造方法，但它的沉积均匀性较差。引入一个连接到发射电极的辅助导电电极以提高纳米纤维的沉积均匀性。通过对电场进行有限元分析和实验，探讨了辅助电极形状、船形电极的倾斜角度和位置对电场分布、纳米纤维直径、射流控制和沉积均匀性的影响。实验表明，位于储液器底部上方20 mm处且倾斜角度为5°的船形电极有助于将纳米纤维的相对沉积误差最大程度地降低至约5.66%，这表明这种辅助电极是一种能够大幅提高大规模静电纺丝中纳米纤维沉积均匀性的良好候选方法。
