Document Type

Article

Publication Date

6-2011

Abstract

The present paper describes the addition of nitroxide-functionalized graphene oxide (GOFT) into polyamide 6 (PA6) micro- and nanofibers, which were obtained through electrospinning. SEM micrographs demonstrated the presence of fibers. Tensile testing presented an unexpected and non-obvious behavior, in which the Young’s modulus, tensile strength, and elongation simultaneously and remarkably increased compared to the pristine polymer nanofibers. GOFT induces the hydrogen bonding between the NH group from PA6 with the functional groups, thus promoting higher crystallinity of the polymer matrix. Nonetheless, deconvoluted DSC curves revealed the presence of two quasi-steady polymorphous (b and d phases) contributing to 46% of the total crystallinity. This evidence suggests that their presence and high-ratios are responsible for the unexpected and simultaneous enhancement of tensile properties.

Comments

© 2020 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim. Original published version available at https://doi.org/10.1002/marc.202000195

Publication Title

Macromolecular Rapid Communications

DOI

10.1002/marc.202000195

Available for download on Friday, June 18, 2021

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