Scanning WAXS microscopy of regenerated cellulose fibers at mesoscopic resolution
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2024-07-01
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en
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8
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IUCrJ, Volume 11, issue Pt 4, pp. 570-577
Abstract
In this work, regenerated cellulose textile fibers, Ioncell-F, dry-wet spun with different draw ratios, have been investigated by scanning wide-Angle X-ray scattering (WAXS) using a mesoscopic X-ray beam. The fibers were found to be homogeneous on the 500nm length scale. Analysis of the azimuthal angular dependence of a crystalline Bragg spot intensity revealed a radial dependence of the degree of orientation of crystallites that was found to increase with the distance from the center of the fiber. We attribute this to radial velocity gradients during the extrusion of the spin dope and the early stage of drawing. On the other hand, the fiber crystallinity was found to be essentially homogeneous over the fiber cross section.Description
Publisher Copyright: © 2024 Sara Johansson et al.
Keywords
crystal growth, crystallization, materials science, nanofocus X-ray probe, properties of solids Vetenskapsrådet, regenerated cellulose fibers, scanning WAXS
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Citation
Johansson, S, Scattarella, F, Kalbfleisch, S, Johansson, U, Ward, C, Hetherington, C, Sixta, H, Hall, S, Giannini, C & Olsson, U 2024, ' Scanning WAXS microscopy of regenerated cellulose fibers at mesoscopic resolution ', IUCrJ, vol. 11, no. Pt 4, pp. 570-577 . https://doi.org/10.1107/S205225252400383X