Abstract

Uniaxially alignment of electrospun nanofibers is one of the main concerns to produce nanofiber yarns. Parallel electrode collectors have been used for this purpose. In this study, the effect of gap distance between parallel electrodes, electrode plate’s width, tip to collector distance (TCD) and charge density (CD) on uniaxial alignment and average diameter of polyvinyl alcohol (PVA) nanofibers in parallel electrode electrospinning is investigated. Scanning electron microscopy analysis is used to measure alignment angles and average diameters of the nanofibers. The results indicate that plate width is an effective parameter on the nanofiber alignment and need be considered with gap distance together. Increasing of gap distance and plate width together, increases the alignment of the nanofibers. Also, decreasing of CD and TCD increases the alignment of the nanofibers. Gap distance and plate width affect the average nanofiber diameter, but there is no obvious relationship.

摘要

电纺纳米纤维的单轴排列是生产纳米纤维纱线的主要问题之一。为此已经使用了平行电极收集器。在这项研究中，研究了平行电极静电纺丝中平行电极之间的间隙距离，电极板的宽度，尖端到集电极的距离（TCD）和电荷密度（CD）对聚乙烯醇（PVA）纳米纤维的单轴排列和平均直径的影响。扫描电子显微镜分析用于测量纳米纤维的取向角和平均直径。结果表明，板宽度是纳米纤维取向的有效参数，需要一起考虑间隙距离。间隙距离和板宽度的共同增加会增加纳米纤维的排列。还，CD和TCD的减少增加了纳米纤维的排列。间隙距离和板宽度影响平均纳米纤维直径，但是没有明显的关系。