Scanning WAXS microscopy of regenerated cellulose fibers at mesoscopic resolution.
IUCrJ
; 11(Pt 4): 570-577, 2024 Jul 01.
Article
in En
| MEDLINE
| ID: mdl-38860956
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 500â
nm 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.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
IUCrJ
Year:
2024
Document type:
Article
Affiliation country:
Sweden
Country of publication:
United kingdom