Fiber Engineering Trifecta of Spinnability, Morphology, and Properties: Centrifugally Spun versus Electrospun Fibers
Fiber Engineering Trifecta of Spinnability, Morphology, and Properties: Centrifugally Spun versus Electrospun Fibers
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DOI：
10.1021/acsapm.1c01865
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发表时间：
2022-02
影响因子：
5
通讯作者：
Jorgo Merchiers;Cheryl Slykas;Carina D. V. Martínez Narváez;M. Buntinx;W. Deferme;Roos Peeters;Naveen K. Reddy;V. Sharma,
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作者：
Jorgo Merchiers;Cheryl Slykas;Carina D. V. Martínez Narváez;M. Buntinx;W. Deferme;Roos Peeters;Naveen K. Reddy;V. Sharma,
设计应用型纤维涉及多方面的挑战，涉及将配方性能和加工参数与纤维工程的可纺性、形态和性能三要素相关联。在这里，我们表征了大分子和溶剂性质对使用定制离心力纺丝（CFS）装置和匹配的工艺参数生产的聚环氧乙烷（PEO）纤维的三重性的影响。我们通过改变用溶解在AcN/H2 O混合物中的PEO配制的纺丝原液中的乙腈（AcN）分数来说明改变溶剂对可纺性、形态和性能（热和机械）的影响。我们将离心纺PEO纤维的测量直径、拉伸强度、断裂伸长率和结晶度的数值与使用Berry数（或重叠参数）作为纵坐标的电纺纤维的已发表数据集进行对比。我们编译，分析，并重新绘制ES和CFS数据集获得各种溶剂，PEO（Mw和C），和加工参数。尽管ES和CFS的喷射轨迹和纤维形成由不同的力决定，但我们发现离心纺PEO纤维可以模仿电纺纤维的性能、形态和可纺性。我们讨论的挥发性缠结的可纺性，在这里显示的PEO解决方案在某些ACN/H2 O混合物的机制，在对比的可扩展性丰富的可纺性的多组分制剂，使通过添加的一个可伸缩的w聚合物馏分。
: Designing application-ready fi bers involves multifaceted challenges related to correlating the formulation properties and processing parameters to the fi ber engineering trifecta of spinnability, morphology, and properties. Here, we characterize the in fl uence of macromolecular and solvent properties on the trifecta for poly(ethylene oxide) (PEO) fi bers produced using a bespoke centrifugal force spinning (CFS) setup and matched processing parameters. We illustrate the in fl uence of changing solvent on spinnability, morphology, and properties (thermal and mechanical) by varying the acetonitrile (AcN) fraction in the spinning dope formulated with PEO dissolved in AcN/H 2 O mixtures. We contrast the numerical values of measured diameter, tensile strength, elongation-at-break, and crystallinity of centrifugally spun PEO fi bers with the published data sets for electrospun fi bers using the Berry number (or the overlap parameter) as the ordinate. We compile, analyze, and replot ES and CFS data sets obtained for various solvents, PEO ( M w and c ), and processing parameters. Even though distinct forces determine the jet trajectory and fi ber formation for ES and CFS, we fi nd that centrifugally spun PEO fi bers emulate electrospun fi ber properties, morphology, and spinnability. We discuss the mechanism underlying volatile-entangled spinnability, displayed here by PEO solutions in certain AcN/H 2 O mixtures, in contrast to extensibility-enriched spinnability of multicomponent formulations, enabled by the addition of an ultrahigh M w polymer fraction.