The Effect of HPMC and CNC on the Structure and Properties of Alginate Fibers

• Published in: Fibers and polymers Vol. 21; no. 10; pp. 2179 - 2185
• Main Authors: Ci, Meiyu, Liu, Jie, Shang, Shenglong, Jiang, Zhiming, Zhu, Ping, Sui, Shuying
• Format: Journal Article
• Language: English
• Published: Seoul The Korean Fiber Society 01.10.2020; Springer Nature B.V; 한국섬유공학회
• Subjects: Alginates; Cellulose fibers; Chemistry; Chemistry and Materials Science; Elongation; Fourier transforms; Infrared analysis; Infrared spectroscopy; Mechanical properties; Morphology; Nanocrystals; Polymer Sciences; Regular Articles; Stiffness; Strength testing; Tensile strength; Thermal stability; Thermogravimetric analysis; Water absorption; 섬유공학; Cellulose nanocrystal; Effect; Structure and properties; Hydroxypropyl methylcellulose; Alginate fiber
• ISSN: 1229-9197; 1875-0052
• DOI: 10.1007/s12221-020-1264-z

Bio-composite alginate fibers with binary and ternary blends were prepared by using cellulose nanocrystal (CNC) and hydroxypropyl methylcellulose (HPMC) as composite fillers through wet-spinning method. Structural, thermal, mechanical properties and surface morphology of fibers were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), Thermogravimetric Analysis (TGA), Mechanical strength testing, Scanning Electron Microscopy (SEM). The thermal stability and mechanical performance of SA/HPMC and SA/HPMC/CNC composite fibers improved as the increasing of crystallinity and intermolecular H-bonding interaction of the fibers. HPMC is helpful to improve the extensibility and stiffness of alginate fibers, and CNC can further enhance the stiffness of SA/HPMC composite fibers. The tensile strength, elongation at break, the initial modulus and work at break of SA/HPMC/CNC composite fibers were superior to those of alginate fibers. Roughness of surface and tensile section of SA/HPMC and SA/HPMC/CNC composite fibers got increased. Water absorbency and salt resistance were significantly improved.