Spinneret geometry modulates the mechanical properties of man-made cellulose fibers

Abstract The production of cellulose-based textile fibers with high toughness is vital for extending the longevity and thus developing a sustainable industry by reducing global burden microplastics. This study presented strategies to improve fiber tuning spinneret geometries. Experimental studies were conducted spinning different geometries measuring mechanical structural properties spun fibers. In addition, numerical simulation tools used better understand effects geometry. altering parameters capillary diameters D, angle entry cone into capillary, ratio length diameter L/D. highest could be achieved at aspect 1 2. obtained maximum was 93 MPa tensile strength 60 cN/tex concomitant elongation 16.5%. For these properties, 13 wt% solution high-purity pulp higher viscosity in [DBNH][OAc] 1.3 dtex using D100 1:1 length/diameter an entrance 8°. It noticeable that microvoid orientations decreased almost linearly increasing morphologies similar regardless raw materials process. summary, modulating geometries, Ioncell have potential replace synthetic