Toughen and strengthen alginate fiber by incorporation of polyethylene glycol grafted cellulose nanocrystals

Excellent strength regenerated alginate composite fibers mixed with Poly (ethylene glycol) grafted cellulose nanocrystals (CNC-g-PEG) were prepared through a simple and scalable blending strategy. Firstly, high modulus (CNCs) fabricated based on waste cotton fabrics by the chemical treatment. (PEG) different molecular weight was onto CNC surface. The from CNC-g-PEG/sodium spinning dope wet spinning. CNC-g-PEG/Alginate characterized using FTIR, XRD, scanning electron microscopy, mechanical testing. morphology of SEM image showed that CNC-g-PEG partially eliminated defects matrix increased roughness fracture cross-section, constructing material denser microstructure. Under same load, addition has better effects properties than CNCs. maximum elongation at break for 56.3% 81.6% as result reinforcement, respectively. Besides, salt tolerance antibacterial activity improved PEG increased. This study provides possibility development high-performance, green fibers.