Process-dependent nanostructures of regenerated cellulose fibres revealed by small angle neutron scattering

Loading...
Thumbnail Image
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2021-03-18
Major/Subject
Mcode
Degree programme
Language
en
Pages
10
Series
Polymer, Volume 218
Abstract
The nanometric internal structure of polymeric fibres is fundamental for their mechanical properties. Two-dimensional small angle neutron scattering patterns were collected to obtain structural parameters of the elementary fibrils in regenerated cellulose fibres prepared by various fibre spinning technologies. Scattering features were fitted to model functions to derive parameters such as elementary fibril radius, long period of the repeating units of crystal and amorphous phase along the fibre axis, degree of orientation, and ellipticity. The correlation between structural parameters and the mechanical properties was studied for the fibres of different existing spinning processes and for the high-strength fibres. Former group showed high correlation with mechanical properties. The latter group showed generally lower correlation, but showed relatively high correlation with the long period. These structural parameters provide a basis for understanding the structure-property relationship of regenerated cellulose fibres as function of spinning types and conditions for further optimization.
Description
| openaire: EC/H2020/715788/EU//WoCaFi
Keywords
Nanostructure by small angle neutron scattering, Regenerated cellulose fibre, Structure-property relationship of fibre
Other note
Citation
Sawada, D, Nishiyama, Y, Röder, T, Porcar, L, Zahra, H, Trogen, M, Sixta, H & Hummel, M 2021, ' Process-dependent nanostructures of regenerated cellulose fibres revealed by small angle neutron scattering ', Polymer, vol. 218, 123510 . https://doi.org/10.1016/j.polymer.2021.123510