Water‐born 3D nanofiber mats using cost‐effective centrifugal spinning: comparison with electrospinnig process: A complex study,Journal of Applied Polymer Science

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Water‐born 3D nanofiber mats using cost‐effective centrifugal spinning: comparison with electrospinnig process: A complex study
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-09-21 , DOI: 10.1002/app.49975
Martina Rihova ₁ , Ahmet Erdem Ince ₁ , Veronika Cicmancova ₂ , Ludek Hromadko _{1,

2} , Klara Castkova ₁ , David Pavlinak ₃ , Lucy Vojtova ₁ , Jan M. Macak _{1,

2}

Affiliation

A comparison of the electrostatic and centrifugal spinning of poly(vinyl alcohol) and poly(vinyl pyrrolidone) is shown in terms of the resulting fiber morphology and the process conditions. Specific parameters of centrifugal spinning, such rotational speed of spinneret and the relative humidity, were extensively investigated in details. Morphologies and diameters of resulting fiber mats were investigated by a scanning electron microscopy and compared between the two spinning techniques. The results revealed that formation of fibers is mainly affected by the initial polymer concentrations (and resulting viscosities) of polymeric solutions, which is in line with previous reports. However, the key novel finding of this work is that increasing relative humidity during centrifugal spinning process leads to greatly reduced fiber diameters to the levels typical for electrospinning. The obtained comparison is discussed and clearly shows technological advantages of the centrifugal spinning over electrospinning, enabling quantitative production of fibers with same or similar diameters.

中文翻译：

使用经济高效的离心纺丝技术生产的水性3D纳米纤维垫：与静电纺丝工艺的比较：一项复杂的研究

就所得纤维形态和加工条件而言，显示了聚乙烯醇和聚乙烯吡咯烷酮的静电纺丝和离心纺丝的比较。详细研究了离心纺丝的具体参数，如喷丝头的转速和相对湿度。通过扫描电子显微镜研究所得纤维垫的形态和直径，并在两种纺丝技术之间进行比较。结果表明，纤维的形成主要受聚合物溶液的初始聚合物浓度（和所得粘度）影响，这与以前的报道一致。然而，这项工作的主要新颖发现是，在离心纺丝过程中，相对湿度的增加导致纤维直径大大减小，达到了电纺丝的典型水平。对所获得的比较进行了讨论，并清楚地显示了离心纺丝相对于静电纺丝的技术优势，从而能够定量生产具有相同或相似直径的纤维。

更新日期：2020-09-21

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