静电纺曲边碟形喷头的电场强度分布有限元分析与试纺  

Finite element analysis of electric field intensity distribution and spinning experiments of the curved dish electrospinning spinneret

作　　者：张巍 周智勇 Zhang Wei;Zhou Zhiyong(Columbia Sportswear Commercial(Shanghai)Co.,Ltd.,Shanghai 200030,China;Nanjing Fiberglass Research&Design Institute Co.,Ltd.,Nanjing 210012,China)

机构地区：[1]哥伦比亚运动服装商贸(上海)有限公司,上海200030 [2]南京玻璃纤维研究设计院有限公司,江苏南京210012

出　　处：《产业用纺织品》2022年第4期25-31,共7页Technical Textiles

摘　　要：为改善无针式静电纺丝喷头出丝部位的电场强度分布,提升喷头的纺丝性能,基于一种阵列碟形喷头,设计了一种曲边碟形喷头。首先,采用ANSYS Maxwell软件分析了阵列碟形喷头中单个圆形喷头边缘的电场强度分布,发现喷头内外部边缘的电场强度存在较大突变。其次,将阵列碟形喷头中的电场强度突变点连接,得到曲边碟形喷头。电场模拟结果显示,曲边碟形喷头边缘电场强度的突变明显减小,且电场强度呈现了一定幅度的提升。最后,试纺结果表明:曲边碟形喷头制备聚丙烯腈(PAN)微纳米纤维的效率略低于阵列碟形喷头的,但前者制备的纤维平均直径更小,直径均匀度更高。In order to improve the electric field intensity distribution at the spinning part of the needleless electrospinning spinneret, enhance the spinning performance of the spinneret, a curved dish spinneret was designed based on an array dish spinneret. Firstly, ANSYS Maxwell software was used to analyze the distribution of electric field intensity at the edge of a single circular spinneret in the array dish spinneret, and it was found that the electric field intensity at the inner and outer edges of the spinneret had large mutation. Secondly, the electric field intensity mutational sites in the array dish spinneret were connected, and the curved dish spinneret was obtained. The electric field simulation results showed that the mutation of the electric field intensity at the edge of the curved dish spinneret was significantly reduced, and the electric field intensity had been improved to a certain extent. Finally, the spinning experiments results showed that the efficiency of preparing polyacrylonitrile(PAN) micro-/nano-fibers from the curved dish spinneret was slightly lower than that of the array dish spinneret, while the average diameter of the fibers prepared by the former was smaller, and the diameter uniformity was higher.

关 键 词：静电纺丝 无针式喷头 阵列碟形喷头 曲边碟形喷头 微纳米纤维 有限元分析 电场模拟 电场强度 

分 类 号：TS103.7[轻工技术与工程—纺织工程]