Recent Progress in Regenerated Cellulose Fibers by Wet Spinning

Abstract

Cellulose is the most abundant and “green” biomass resource on earth and gains tremendous attention. It is expected to become an alternative for traditional chemical and petroleum resources. This review describes the traditional solvents used for industrial processes, the non‐derivative organic solvents, and the aqueous solution systems, along with their dissolution mechanisms and development of fiber‐spinning processes. The problems associated with the industrial production of viscose fibers and cuprammonium fibers are also discussed. This paper focuses on the research status of regenerated cellulose fibers (RCFs) prepared with green and no‐pollution aqueous solutions and provides some effective strategies and methods for improving the mechanical strength of RCFs and promoting the implementation of industrial production. Lastly, the current developments of RCFs are summarized and prospected and it would serve as a guide for the developmental trend and research direction of RCFs in the future.

State-of-the-art of electrospun nanocomposite nanofibers and membranes with carbon nanoparticles—Prevailing progressions

“…Spinning methods have easily controllable parameters for fiber formation [42] . In this regard, wet spinning method like solution blow spinning has been focused [43] . Solution blow spinning technique has been designed for spinnable polymer solution.…”

Engineering strong man-made cellulosic fibers: a review of the wet spinning process based on cellulose nanofibrils

“…Such a process is termed wet spinning. 21 The use of dissolved cellulose polymers greatly boosts the processing ability to control the final fiber structure and enable continuous production. However, such a process is based on damaging the original crystalline cellulose structure, resulting in relatively weaker mechanical properties (a modulus of 11–16 GPa, a strength of 486–593 MPa), 22,23 compared to many synthetic fibers.…”

Effect of Draw Ratio and Triggering Temperature on Properties of Hydrothermal Responsive Shape Memory Microcomposite Filaments.

“…The strength and shape memory properties of these laments are in uenced by various factors, including the solution viscosity, molecular weight, triggering temperature and draw ratio during spinning. However, draw ratio and triggering temperature are the most important factors that affects both the tensile strength and shape memory properties of the laments (Shen et al, 2023). Draw ratio is de ned as the degree of stretching of the spinning solution inside (primary drawing) and outside (second drawing) the coagulation bath and calculated by dividing the take-up speed after solidi cation by the initial extrusion speed from the spinneret (Gupta et al, 2006).…”