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Open AccessArticle

Poly(Ethylene Furanoate) along Its Life-Cycle from a Polycondensation Approach to High-Performance Yarn and Its Recyclate

German Institutes of Textile and Fiber Research, Koerschtalstr. 26, D-73770 Denkendorf, Germany
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Authors to whom correspondence should be addressed.
Both authors contributed equally.
Academic Editor: Tomasz Sterzynski
Materials 2021, 14(4), 1044; https://doi.org/10.3390/ma14041044
Received: 22 December 2020 / Revised: 5 February 2021 / Accepted: 15 February 2021 / Published: 23 February 2021
(This article belongs to the Special Issue Novel Synthetic Fibers for Textile Applications)
We report on the pilot scale synthesis and melt spinning of poly(ethylene furanoate) (PEF), a promising bio-based fiber polymer that can heave mechanical properties in the range of commercial poly(ethylene terephthalate) (PET) fibers. Catalyst optimization and solid state polycondensation (SSP) allowed for intrinsic viscosities of PEF of up to 0.85 dL·g−1. Melt-spun multifilament yarns reached a tensile strength of up to 65 cN·tex−1 with an elongation of 6% and a modulus of 1370 cN·tex−1. The crystallization behavior of PEF was investigated by differential scanning calorimetry (DSC) and XRD after each process step, i.e., after polymerization, SSP, melt spinning, drawing, and recycling. After SSP, the previously amorphous polymer showed a crystallinity of 47%, which was in accordance with literature. The corresponding XRD diffractograms showed signals attributable to α-PEF. Additional, clearly assignable signals at 2θ > 30° are discussed. A completely amorphous structure was observed by XRD for as-spun yarns, while a crystalline phase was detected on drawn yarns; however, it was less pronounced than for the granules and independent of the winding speed. View Full-Text
Keywords: polycondensation; melt; solid-state; 2,5-furan dicarboxylic acid; polyethylene furanoate; fiber spinning; yarn drawing; crystallinity polycondensation; melt; solid-state; 2,5-furan dicarboxylic acid; polyethylene furanoate; fiber spinning; yarn drawing; crystallinity
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MDPI and ACS Style

Höhnemann, T.; Steinmann, M.; Schindler, S.; Hoss, M.; König, S.; Ota, A.; Dauner, M.; Buchmeiser, M.R. Poly(Ethylene Furanoate) along Its Life-Cycle from a Polycondensation Approach to High-Performance Yarn and Its Recyclate. Materials 2021, 14, 1044. https://doi.org/10.3390/ma14041044

AMA Style

Höhnemann T, Steinmann M, Schindler S, Hoss M, König S, Ota A, Dauner M, Buchmeiser MR. Poly(Ethylene Furanoate) along Its Life-Cycle from a Polycondensation Approach to High-Performance Yarn and Its Recyclate. Materials. 2021; 14(4):1044. https://doi.org/10.3390/ma14041044

Chicago/Turabian Style

Höhnemann, Tim; Steinmann, Mark; Schindler, Stefan; Hoss, Martin; König, Simon; Ota, Antje; Dauner, Martin; Buchmeiser, Michael R. 2021. "Poly(Ethylene Furanoate) along Its Life-Cycle from a Polycondensation Approach to High-Performance Yarn and Its Recyclate" Materials 14, no. 4: 1044. https://doi.org/10.3390/ma14041044

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