Chen Xiaoqing, Liang Jiahao, Tan Xiang, Ding Jiazheng, Xie Wenyu, Li Changgang, Cai Yebin
School of Energy and Power Engineering, Guangdong University of Petrochemical Technology, Maoming 525099, China.
Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, Guangdong Engineering Technology Research Center of Petrochemical Pollution Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525099, China.
Polymers (Basel). 2024 Aug 17;16(16):2330. doi: 10.3390/polym16162330.
The mass production of uniform, high-quality polymer nanofibers remains a challenge. To enhance spinning yield, a multi-string standing wave electrospinning apparatus was developed by incorporating a string array into a standing wave electrospinning device. The process parameters such as string spacing, quantity, and phase difference were optimized, and their effects on the electric field distribution within the spinning area were analyzed using electric field simulations. When the string spacing was less than 40 mm or the number of strings exceeded two, the electric field strength significantly decreased due to electric field interference. However, this interference could be effectively mitigated by setting the string standing wave phase difference to half a period. The optimal string array parameters were identified as string spacing of 40 mm, two strings, and a phase difference of half a period. Multi-string standing wave electrospinning produced fibers with diameters similar to those obtained with single-string standing wave electrospinning (178 ± 72 nm vs. 173 ± 48 nm), but the yield increased by 88.7%, reaching 2.17 g/h, thereby demonstrating the potential for the large-scale production of nanofibers. This work further refined the standing wave electrospinning process and provided valuable insights for optimizing wire-type electrospinning processes.
大规模生产均匀、高质量的聚合物纳米纤维仍然是一项挑战。为了提高纺丝产量，通过将弦阵列纳入驻波静电纺丝装置，开发了一种多弦驻波静电纺丝设备。优化了弦间距、数量和相位差等工艺参数，并使用电场模拟分析了它们对纺丝区域内电场分布的影响。当弦间距小于40毫米或弦的数量超过两根时，由于电场干扰，电场强度显著降低。然而，通过将弦驻波相位差设置为半个周期，可以有效减轻这种干扰。确定的最佳弦阵列参数为弦间距40毫米、两根弦和半个周期的相位差。多弦驻波静电纺丝生产的纤维直径与单弦驻波静电纺丝生产的纤维直径相似（分别为178±72纳米和173±48纳米），但产量提高了88.7%，达到2.17克/小时，从而证明了纳米纤维大规模生产的潜力。这项工作进一步完善了驻波静电纺丝工艺，并为优化线型静电纺丝工艺提供了有价值的见解。
