摘要
采用原位复合法制备磁性纳米复合纤维,利用造纸工艺抄造成磁性纸张。考察了二价铁离子(Fe2+)浓度、聚乙烯亚胺(PEI)助剂的用量、反应温度、熟化时间及搅拌速度等因素对磁性粒子(Fe3O4)填充量的影响。采用X射线衍射仪(XRD)和振动样品磁强计(VSM)对磁性纸张的结构及性能进行表征。实验结果表明,合成的磁性粒子为Fe3O4,并成功地沉淀在纤维上。通过实验可确定出最佳制备工艺条件:Fe2+浓度为0.06mol/L、PEI与纤维质量比为2%、反应温度为60℃、熟化时间为60min、搅拌速度为1000r/min。磁性能测试结果表明制备的磁性纸张具有超顺磁性。
Magnetic nano-composite fibers were prepared by in-situ synthesis method, and magnetic papers were made by using the papermaking technique. The loading degree of the magnetic particles （Fe3O4） depends on the composition conditions, such as Fe^2＋ concentration, the dosage of PEI, reaction temperature, aging time and stirring speed. The microstructure and properties of magnetic paper was observed and measured by X-ray diffraction （XRD） and vibrating sample magnetometer （VSM）, respectively. The optimal conditions were determined by experiments as follows： Fe^2＋ concentration is 0.06mol/L, the amount of PEI 2%, reaction temperature 60℃, aging time 60min and stirring speed 1000r/min. X-ray diffraction pattern confirms that the magnetic particles are Fe3O4. Hysteresis loop shows that the magnetic paper has super-paramagnetic behavior.
出处
《磁性材料及器件》
CAS
CSCD
2008年第1期49-52,共4页
Journal of Magnetic Materials and Devices
基金
江苏省自然科学基金资助项目(BK2006022)
江苏省"青蓝工程")优秀青年骨干教师培养对象经费[苏教(2006)21号文]资助项目
关键词
纸质磁性材料
原位复合
磁性纤维素纤维
磁性粒子填充度
paper-base magnetic material
in-situ synthesis
magnetic cellulose fiber
loading degree of magnetic particles
