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Scanning WAXS microscopy of regenerated cellulose fibers at mesoscopic resolution

Johansson, Sara LU ; Scattarella, Francesco ; Kalbfleisch, Sebastian LU ; Johansson, Ulf LU ; Ward, Christopher LU ; Hetherington, Crispin LU orcid ; Sixta, Herbert ; Hall, Stephen LU ; Giannini, Cinzia and Olsson, Ulf LU (2024) In IUCrJ 11(Pt 4). p.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.

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author
; ; ; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
crystal growth, crystallization, materials science, nanofocus X-ray probe, properties of solids Vetenskapsrådet, regenerated cellulose fibers, scanning WAXS
in
IUCrJ
volume
11
issue
Pt 4
pages
8 pages
publisher
International Union of Crystallography
external identifiers
  • scopus:85198179590
  • pmid:38860956
ISSN
2052-2525
DOI
10.1107/S205225252400383X
language
English
LU publication?
yes
id
8a9ede0a-5f46-4214-8b76-f50472f9b8f8
date added to LUP
2024-09-30 12:31:43
date last changed
2024-10-28 16:45:57
@article{8a9ede0a-5f46-4214-8b76-f50472f9b8f8,
  abstract     = {{<p>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.</p>}},
  author       = {{Johansson, Sara and Scattarella, Francesco and Kalbfleisch, Sebastian and Johansson, Ulf and Ward, Christopher and Hetherington, Crispin and Sixta, Herbert and Hall, Stephen and Giannini, Cinzia and Olsson, Ulf}},
  issn         = {{2052-2525}},
  keywords     = {{crystal growth; crystallization; materials science; nanofocus X-ray probe; properties of solids Vetenskapsrådet; regenerated cellulose fibers; scanning WAXS}},
  language     = {{eng}},
  number       = {{Pt 4}},
  pages        = {{570--577}},
  publisher    = {{International Union of Crystallography}},
  series       = {{IUCrJ}},
  title        = {{Scanning WAXS microscopy of regenerated cellulose fibers at mesoscopic resolution}},
  url          = {{http://dx.doi.org/10.1107/S205225252400383X}},
  doi          = {{10.1107/S205225252400383X}},
  volume       = {{11}},
  year         = {{2024}},
}