Centrifugally spun poly(ethylene oxide) fibers rival the properties of electrospun fibers,Journal of Polymer Science

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Centrifugally spun poly(ethylene oxide) fibers rival the properties of electrospun fibers
Journal of Polymer Science ( IF 3.9 ) Pub Date : 2021-08-17 , DOI: 10.1002/pol.20210424
Jorgo Merchiers _{1,

2} , Carina D. V. Martínez Narváez ₃ , Cheryl Slykas ₃ , Mieke Buntinx _{1,

2} , Wim Deferme _{1,

2} , Jan D'Haen _{1,

2} , Roos Peeters _{1,

2} , Vivek Sharma ₃ , Naveen K. Reddy _{1,

2}

Affiliation

Centrifugal force spinning (CFS), also known as centrifugal spinning, forcespinning, or rotary jet spinning, provides considerably higher production rates than electrospinning (ES), but the more widespread use of CFS as an alternative depends on the ability to produce fibers with robust thermal and mechanical properties. Here, we report the CFS of poly(ethylene oxide) (PEO) fibers made using a spinning dope formulated with acetonitrile (AcN) as the volatile solvent, and we describe the thermal and mechanical properties of the centrifugally-spun fibers. Even though the formation, diameter, and morphology of electrospun and centrifugally-spun PEO fibers are relatively well-studied, the article presents three crucial contributions: the pioneering use of PEO solutions in AcN as spinning dope, characterization of crystallinity and mechanical properties of the centrifugally-spun PEO fibers, and a comparison with the corresponding properties of electrospun fibers. We find that fiber formation occurrs for the chosen CFS conditions if polymer concentration exceeds the entanglement concentration, determined from the measured specific viscosity. Most significantly, the centrifugally spun PEO fibers display crystallinity, modulus, elongation-at-break, and fiber diameter that rival the properties of electrospun PEO fibers reported in the literature.

中文翻译：

离心纺聚（环氧乙烷）纤维可与电纺纤维的性能相媲美

离心力纺丝 (CFS)，也称为离心纺丝、力纺丝或旋转喷射纺丝，提供比静电纺丝 (ES) 高得多的生产率，但 CFS 作为替代品的更广泛使用取决于生产具有坚固耐用的纤维的能力热性能和机械性能。在这里，我们报告了使用以乙腈 (AcN) 作为挥发性溶剂配制的纺丝原液制成的聚环氧乙烷 (PEO) 纤维的 CFS，并描述了离心纺丝纤维的热和机械性能。尽管对静电纺和离心纺 PEO 纤维的形成、直径和形态进行了相对深入的研究，但本文提出了三个重要贡献：在 AcN 中率先使用 PEO 溶液作为纺丝原液，离心纺PEO纤维的结晶度和机械性能的表征，以及与电纺纤维的相应性能的比较。我们发现，如果聚合物浓度超过由测得的比粘度确定的缠结浓度，则在选定的 CFS 条件下会发生纤维形成。最重要的是，离心纺 PEO 纤维的结晶度、模量、断裂伸长率和纤维直径可与文献中报道的电纺 PEO 纤维的性能相媲美。

更新日期：2021-08-17

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