Scanning WAXS microscopy of regenerated cellulose fibers at mesoscopic resolution

Sara Johansson; Francesco Scattarella; Sebastian Kalbfleisch; Ulf Johansson; Christopher Ward; Crispin Hetherington; Herbert Sixta; Stephen Hall; Cinzia Giannini; Ulf Olsson

doi:10.1107/S205225252400383X

Scanning WAXS microscopy of regenerated cellulose fibers at mesoscopic resolution

Sara Johansson, Francesco Scattarella, Sebastian Kalbfleisch, Ulf Johansson, Christopher Ward, Crispin Hetherington, Herbert Sixta, Stephen Hall, Cinzia Giannini, Ulf Olsson

Department of Bioproducts and Biosystems

Research output: Contribution to journal › Article › Scientific › peer-review

2 Citations (Scopus)

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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.

Original language	English
Pages (from-to)	570-577
Number of pages	8
Journal	IUCrJ
Volume	11
Issue number	Pt 4
DOIs	https://doi.org/10.1107/S205225252400383X
Publication status	Published - 1 Jul 2024
MoE publication type	A1 Journal article-refereed

Keywords

crystal growth
crystallization
materials science
nanofocus X-ray probe
properties of solids Vetenskapsrådet
regenerated cellulose fibers
scanning WAXS

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Cite this

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title = "Scanning WAXS microscopy of regenerated cellulose fibers at mesoscopic resolution",

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.",

keywords = "crystal growth, crystallization, materials science, nanofocus X-ray probe, properties of solids Vetenskapsr{\aa}det, regenerated cellulose fibers, scanning WAXS",

author = "Sara Johansson and Francesco Scattarella and Sebastian Kalbfleisch and Ulf Johansson and Christopher Ward and Crispin Hetherington and Herbert Sixta and Stephen Hall and Cinzia Giannini and Ulf Olsson",

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year = "2024",

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doi = "10.1107/S205225252400383X",

language = "English",

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T1 - Scanning WAXS microscopy of regenerated cellulose fibers at mesoscopic resolution

AU - Johansson, Sara

AU - Scattarella, Francesco

AU - Kalbfleisch, Sebastian

AU - Johansson, Ulf

AU - Ward, Christopher

AU - Hetherington, Crispin

AU - Sixta, Herbert

AU - Hall, Stephen

AU - Giannini, Cinzia

AU - Olsson, Ulf

PY - 2024/7/1

Y1 - 2024/7/1

N2 - 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.

AB - 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.

KW - crystal growth

KW - crystallization

KW - materials science

KW - nanofocus X-ray probe

KW - properties of solids Vetenskapsrådet

KW - regenerated cellulose fibers

KW - scanning WAXS

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DO - 10.1107/S205225252400383X

M3 - Article

AN - SCOPUS:85198179590

SN - 2052-2525

VL - 11

SP - 570

EP - 577

JO - IUCrJ

JF - IUCrJ

IS - Pt 4

ER -

Scanning WAXS microscopy of regenerated cellulose fibers at mesoscopic resolution

Abstract

Keywords

UN SDGs

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