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A statistical analysis on the influence of process and solution properties on centrifugally spun nanofiber morphology
Journal of Industrial Textiles ( IF 3.2 ) Pub Date : 2021-07-06 , DOI: 10.1177/15280837211029355
Bülin Atıcı 1 , Cüneyt H Ünlü 1 , Meltem Yanilmaz 1
Affiliation  

Centrifugal spinning is a fast and safe nanofiber production technique and polyacrylonitrile (PAN) nanofibers have been widely studied for many applications including energy storage, filtration, sensors, and biomedical applications. Nanofiber morphology, specific surface area, porosity and average fiber diameter are important to determine the performance of nanofibers in these fields. In centrifugal spinning, nanofiber morphology and average fiber diameter are influenced by solution properties and process parameters including rotational speed, feeding rate, collector distance, and nozzle diameter. In this study, the effect of solution concentration, rotational speed, feeding rate, collector distance and nozzle diameter on average fiber diameter and fiber morphology were studied and statistical analysis was performed to determine the main factors. Optimum solution and process parameters were determined as well. Increased average fiber diameter was seen with increasing polymer concentration and nanofibers produced at 4000 rpm with the feeding rate of 60 ml/h had the lowest average fiber diameter for all studied nozzle sizes (0.3 mm, 0.5 mm and 0.8 mm). 8 wt. % PAN solution was centrifugally spun with the rotational speed of 4000 rpm, feeding rate of 60 ml/h, collector distance of 20 cm and nozzle diameter of 0.3 mm and bead free nanofibers with the average fiber diameter of 680 ± 87 nm was observed.



中文翻译:

工艺和溶液性质对离心纺纳米纤维形态影响的统计分析

离心纺丝是一种快速且安全的纳米纤维生产技术,聚丙烯腈 (PAN) 纳米纤维已被广泛研究用于许多应用,包括储能、过滤、传感器和生物医学应用。纳米纤维形态、比表面积、孔隙率和平均纤维直径对于确定纳米纤维在这些领域的性能很重要。在离心纺丝中,纳米纤维形态和平均纤维直径受溶液性质和工艺参数的影响,包括转速、进料速率、收集器距离和喷嘴直径。本研究研究了溶液浓度、转速、进料速率、收集器距离和喷嘴直径对平均纤维直径和纤维形态的影响,并进行了统计分析以确定主要因素。还确定了最佳溶液和工艺参数。随着聚合物浓度的增加,平均纤维直径增加,并且在 4000 rpm 和 60 毫升/小时的进料速率下生产的纳米纤维对于所有研究的喷嘴尺寸(0.3 毫米、0.5 毫米和 0.8 毫米)具有最低的平均纤维直径。8 重量 % PAN 溶液以 4000 rpm 的转速、60 ml/h 的进料速率、20 cm 的收集器距离和 0.3 mm 的喷嘴直径离心纺丝,观察到平均纤维直径为 680 ± 87 nm 的无珠纳米纤维。5 毫米和 0.8 毫米)。8 重量 % PAN 溶液以 4000 rpm 的转速、60 ml/h 的进料速率、20 cm 的收集器距离和 0.3 mm 的喷嘴直径离心纺丝,观察到平均纤维直径为 680 ± 87 nm 的无珠纳米纤维。5 毫米和 0.8 毫米)。8 重量 % PAN 溶液以 4000 rpm 的转速、60 ml/h 的进料速率、20 cm 的收集器距离和 0.3 mm 的喷嘴直径离心纺丝,观察到平均纤维直径为 680 ± 87 nm 的无珠纳米纤维。

更新日期:2021-07-07
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