Fabrication of Oxidized Sodium Carboxymethylcellulose from Viscose Fibers and Their Viscosity Behaviors
作者：H. Gu, J. He, Y. Huang and Z. Guo
關(guān)鍵字：Oxidized Sodium Carboxymethylcellulose, Viscose Fibers
論文來源：期刊
具體來源：Fibers and Polymers
發(fā)表時(shí)間：2013年
The oxidized sodium carboxymethylcellulose (O-CMC) fibers have been successfully synthesized via the oxidation-etherification method. Subsequently, the O-CMC fibers are characterized by Fourier transform infrared (FT-IR), 13C nuclear magnetic resonance (13C-NMR) and X-ray diffraction (XRD). In addition, the viscosity behaviors of the O-CMC aqueous solution have been investigated at five temperatures (25, 30, 40, 50 and 60 °C), six concentrations (30, 35, 40, 45, 50 and 60 kg/m3) and four shear rates (6, 12, 30 and 60 rpm). The results show that the viscosity of the O-CMC aqueous solution increases with increasing concentrations and decreases with increasing temperature. The viscosity of the O-CMC aqueous solution is found to exhibit a dilatant behavior. The dissolution rate in water of the O-CMC fibers is faster than that of the carboxymethylcellulose (CMC) fibers. It could be used as novel absorbable hemostatic fibers in surgery.