南通大学学报（自然科学版）2024，Vol.23Issue(2)：30-38,9.DOI:10.12194/j.ntu.20240320001
多针头水浴静电纺电场模拟及电压对纳米纤维包芯纱结构的影响
Simulation of electrostatic field in multi-needle water bath electrospinning and the effect of voltage on the structure of nanofiber cored yarn
摘要
Abstract
The preparation of nanofiber yarns has been challenged by weak mechanical properties and incomplete uti-lization of their potential.To address these issues,the influence of voltage on the multi-needle electrospinning process was investigated,and a custom-built multi-needle water bath electrospinning device was employed to prepare skin-core nanofiber-coated yarns.Finite element analysis software(ANSYS)was used to simulate and analyze the electric field distribution generated by multiple needles,exploring the synergistic effects of multiple electric fields and the structure of nanofiber coating layers under different voltages.The morphology,porosity,coating ratio,crystallinity,and mechanical properties of the nanofiber-coated yarns were analyzed and tested.The results show that multi-needle wa-ter bath electrospinning technology can produce nanofiber-coated yarns with a well-defined skin-core structure.The diameter of the cortical nanofibers first decreases and then increases with increasing voltage.At 24 kV,the average dia-meter of the nanofibers reaches a minimum value of(101.42±17.25)nm,and the resulting nanofiber coating ex-hibits optimal mechanical properties with a breaking strength of(12.99±1.33)cN.The crystallinity of the nanofiber coating increases initially and then decreases with increasing voltage,reaching a maximum value of 16.45％at 26 kV.关键词
纳米纤维/包芯纱/多针头/电场模拟/电压Key words
nanofiber/covering yarn/multiple needles/electric field simulation/voltage分类
信息技术与安全科学引用本文复制引用
王小虎,周歆如,岳欣琰,韩潇,洪剑寒..多针头水浴静电纺电场模拟及电压对纳米纤维包芯纱结构的影响[J].南通大学学报（自然科学版）,2024,23(2):30-38,9.基金项目
浙江省自然科学基金探索公益项目(LTGY24E030001) （LTGY24E030001）
绍兴市柯桥区产业关键技术攻关项目(2023JBGS110) （2023JBGS110）
