影响熔融静电纺聚丙烯纤维直径的工艺因素

纺织学报 ›› 2016, Vol. 37 ›› Issue (11): 14-18.

影响熔融静电纺聚丙烯纤维直径的工艺因素

收稿日期:2016-04-01 修回日期:2016-06-16 出版日期:2016-11-15 发布日期:2016-11-23

Influence factors of polypropylene fibers prepared by melt electrospinning

Received:2016-04-01 Revised:2016-06-16 Online:2016-11-15 Published:2016-11-23

摘要/Abstract

摘要：

针对聚丙烯熔融静电纺纤维直径难以细化问题，以熔体流量、聚合物熔体温度、施加电压、喷丝头与接收台的接收距离、电场力等为影响因素进行研究。结果表明：流量为0.05 mL ∕ h 时可以纺出连续的纤维且纤维直径也随流量的增大而增加；当聚合物熔体 ∕ 喷丝头温度超过260 ℃ ∕ 280 ℃时，继续升高温度纤维直径不会继续降低；电场力恒定时，随着接收距离增加，纤维直径减小的趋势逐渐变缓，到30 mm 之后，纤维直径基本不变。考虑综合因素，最终选取的工艺参数：熔体流量为0.05mL ∕ h，聚合物熔体 ∕ 喷丝头温度为260 ℃ ∕ 280 ℃，电压为-24.6 kV，距离为30mm，在此条件下纺得纤维的平均直径为6.23μm，标准差为1.42。

关键词: 聚丙烯, 熔融静电纺, 影响因素, 纤维直径

Abstract:

In this paper, the factors influencing the polypropylene (PP) fibers diameter prepared by melt electrospinning were discussed. The influencing factors, such as flow rate, temperature of polymer melt, applied voltage, distance between nozzle and target and electric field force were considered. The molten polymer deposited on the target at 0.05 mL/h was fibrous shape and the diameter of elecrospun fibers was in direct proportion to the flow rate. After polymer melt temperature reached up to 260C° (temperature of molten polymer)/280℃(temperature of spinneret), the diameter did not decrease any more. When the electric field force was constant, as the voltage and spinning distance before 30 mm increased, the average fiber diameter decreased. The flow rate was 0.05 mL/h, temperature was 260 °C/280C (polymer melt/nozzle), voltage was -24.6 kV and distance was 30 mm. The electrospun fiber under the parameters above was 6.23 μm, and standard deviation was 1.42.

Key words: polypropylene, melt electrospinning, influencing factor, fiber diameter

梁超胡春艳阎克路朱晓敏 THOMAS Helga. 影响熔融静电纺聚丙烯纤维直径的工艺因素[J]. 纺织学报, 2016, 37(11): 14-18.

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