AI Article Synopsis
- The study analyzes Ioncell-F regenerated cellulose fibers, focusing on their structural properties using wide-angle X-ray scattering (WAXS).
- The fibers show uniformity at a 500 nm scale, with increased crystallite orientation further from the fiber center due to specific extrusion and stretching processes.
- However, the overall crystallinity remains consistent across the entire cross section of the fibers.
Article 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 500 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.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11220875 | PMC |
| http://dx.doi.org/10.1107/S205225252400383X | DOI Listing |
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