PREPARATION AND PROPERTIES OF CELLULOSE FIBER/SILICA CORE-SHELL MAGNETIC NANOCOMPOSITES
会议名称：《第十六届木材、纤维及制浆化学国际会议》
会议日期：2011年
学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学]
基 金：The support of this work by National Natural Science (No.30972321) College Natural Science Fundamental Research Project of Jiangsu Province(10KJB53007)
关 键 词：nanocomposite silica core-shell nanoparticle cellulose fiber lumen-loading magnetic paper
摘 要：Cellulose fiber/silica core-shell magnetic nanocomposites were prepared by modified lumen loading method with polyethylenimine as retention aid. They have preserved the inherent properties of the fiber and gained the magnetically responsive properties of *** paper was further made from the *** materials were characterized by X-ray diffraction,transmission electron microscope, scanning electron microscopy,vibrating sample magnetometer and paper *** nanoparticles were observed of better distribution in the cell lumen after silica shell *** of nanoparticles, which was enhanced by beating of pulp and addition of PEI, blocked the contact of fibers to *** results demonstrate that magnetic nanocomposite fiber and paper possess good superparamagnetism with low remnant magnetization and *** will allow the investigation of new concepts in paper making and packaging,security paper,and information storage.