Humidity modulated microfocus small- and wide-angle X-ray scattering on man-made cellulose fibers

Man-made cellulose fibre is drawing increasing attention from the industry due to its sustainability and high performance. There are two main types of regenerated cellulose fibres, wet–spun (Viscose) and dry–wet–spun (Ioncell). Ioncell exhibits better mechanical properties in dry and wet conditions than Viscose. The cellulose crystal structure within fibre significantly impacts its mechanical properties. Thus, it is essential to understand the ultrastructures of different regenerated cellulose fibres. We propose using scanning X–ray microdiffraction to study three cellulose fibres, Viscose, Ioncell, and High Toughness Ioncell under different humidity conditions. This experiment will allow us to obtain a complete field of view of fibre structure from molecular to meso to micron scale and the mechanical effects under different humidity conditions. The results will provide invaluable information for generating high-performance Man-made cellulose fibres.