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Fabrication and characterization of three-layer nanofibrous yarn (PA6/PU/PA6)

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Abstract

To date, electrospun yarns have been applied in various research fields such as composites, filtrations, and biomedical engineering regarding their unique and fabulous characteristics. Herein, a multilayer polyamide6/poly urethane/polyamide6 (PA6/PU/PA6) nanofibrous yarn was designed and fabricated based on the Bob-Tex spinning technique. Morphology and mechanical properties of the fabricated three-layer structure were evaluated. The obtained results represented tensile strength of 81, 70.5, and 51 MPa for the electrospun PA6, PU, and three-layer yarns, respectively. In addition, the three-layer nanofibrous yarn exhibited higher elastic modulus than the PA6 nanofiber yarn. Moreover, the nanofibrous PA6, PU, and three-layer yarns displayed elongation rate of 59.9, 120.5, and 71.3% and work of rupture of 2631, 4671, and 2902.5 MPa, respectively. Furthermore, evaluation of the raptured ends showed ductile fracture of the PA6 nanofibers and brittle fracture of the PU electrospun fibers.

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Authors and Affiliations

  1. Textile Engineering Department, Amirkabir University of Technology, Hafez Ave. 424, 15914, Tehran, Iran

    Pejman Sohanaki, Elaheh Ahamadloo, Ali Akbar Gharehaghaji & Reza M. A. Malek

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  1. Pejman Sohanaki
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  2. Elaheh Ahamadloo
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  3. Ali Akbar Gharehaghaji
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  4. Reza M. A. Malek
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Correspondence to Ali Akbar Gharehaghaji.

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Sohanaki, P., Ahamadloo, E., Gharehaghaji, A.A. et al. Fabrication and characterization of three-layer nanofibrous yarn (PA6/PU/PA6). Polym. Bull. 79, 7245–7264 (2022). https://doi.org/10.1007/s00289-021-03835-2

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  • DOI: https://doi.org/10.1007/s00289-021-03835-2

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