摘要
以共沉淀法为基础，在实验室条件下制备出了超顺磁性纳米Fe3O4微粒，通过正交试验确定制备纳米Fe3O4微粒的最佳工艺条件：反应温度30℃、pH值10~12、晶化时间30min、NaOH浓度2.0mol/L、晶化温度70℃，并用XRD、TEM、VSM 、SEM、IR测试手段对其做了表征，同时在此基础上制备出了机械性能良好、表面均匀光滑、具有磁响应的纳米Fe3O4/PVA复合膜。实验结果表明，与分析纯Fe3O4比较，最佳工艺条件制备的超顺磁性纳米级Fe3O4/PVA复合膜具有更好的磁响应性能以及均匀光滑的外观表面。
Based on co-precipitation method, superparamagnetic Fe3O4nanoparticle was prepared under laboratory conditions. The optimum process conditions of Fe3O4 nanoparticle were determined by orthogonal experiment, with reaction temperature of 30℃, pH value of 10 to 12, crystallization time of 30min, NaOH concentration of 2.0 mol/L, crystallization temperature of 70℃. The characteristics of samples were investigated by XRD, TEM, VSM, SEM, IR, respectively. Meanwhile Fe3O4/PVA composite films with good mechanical properties, smooth surface and magnetic properties were prepared. Experimental results show that nano-Fe3O4/PVA composite superparamagnetic film prepared under optimum conditions exhibits better magnetic properties and homogeneous smooth surface than pure Fe3O4 .
出处
《磁性材料及器件》
CAS
2015年第5期14-18,46,共6页
Journal of Magnetic Materials and Devices
基金
国家自然科学基金资助项目(51467020)
(51007077)
