作者: Gabriela Biliuta , Sergiu Coseri
DOI: 10.1007/S10570-016-1082-Z
关键词: Viscose 、 Chemical engineering 、 Materials science 、 Cellulose fiber 、 Thermal stability 、 Infrared spectroscopy 、 Magnetic nanoparticles 、 Thermogravimetric analysis 、 Composite material 、 Cellulose 、 Scanning electron microscope
摘要: A simple method for preparation of magnetic cellulose fibers by coating (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO)-oxidized viscose with oleic-acid-coated or uncoated, freshly prepared nanoparticles (MNp) is presented. MNp attachment was facilitated chemical activation the through introduction negatively charged carboxylic groups using well-established TEMPO-mediated oxidation protocol. The resulting composite materials preserved intrinsic properties fibers, but gained notable specific features due to presence nanoparticles. obtained were characterized spectral (Fourier-transform infrared spectroscopy) and microscopic (scanning electron microscopy) methods. Thermogravimetric analyses carried out evaluate thermal stability fibers. evaluated vibrating-sample magnetometry.