聚乙二醇-6000/Fe_3O_4磁流体的制备及性质研究  

Study on Preparation and Property of PEG-6000/ Fe_3O_4 Magnetic Fluids

作　　者：赵艳艳[1] 卢来春[2] 张蓉[3] 黄华[1] 

机构地区：[1]重庆医科大学药学院,重庆市400016 [2]第三军医大学大坪医院,重庆市400012 [3]第三军医大学新桥医院,重庆市400037

出　　处：《中国药房》2010年第13期1219-1221,共3页China Pharmacy

摘　　要：目的:制备聚乙二醇(PEG)-6000/Fe3O4磁流体并表征其性质。方法:采用化学共沉淀法制备PEG-6000/Fe3O4磁流体,并用透射电子显微镜、激光粒度测定仪、振动样品磁强计、红外分光光度计等来表征磁流体纳米粒的性质。结果:制得的Fe3O4磁流体表面成功包裹了PEG;平均粒径为(10±6)nm;饱和磁化强度为76.22emu·g-1,顺磁性良好;24h的沉降率为16.8%;纳米粒中铁的含量为69.3%。结论:Fe3O4磁流体经PEG包裹后不但其分散性能得到改善,且磁性保持良好。OBJECTIVE： To prepare PEG-6000/Fe3O4 magnetic fluids and study its property. METHODS： PEG-6000/Fe3O4 magnetic fluids were prepared by chemical co-precipitation method. The property of PEG-6000/Fe3O4 magnetic fluids nanoparticle was represented using transmission electron microscope （TEM）, laser granulometry, vibrating sample magnetometer （VSM） and infrared spectrophotometer （IR）. RESULTS： Fe3O4 magnetic fluids were coated with PEG with mean particle size of （10 ± 6） nm. Saturation magnetization was 76.22 emu· g^-1 with good paramagnet. 24 h of sedimentation rate was 16.8% and the content of Fe in nanoparticle was 69.3 %. CONCLUSION： PEG-6000 coat was conducive to the dispersity and magnetism of Fe3O4 magnetic fluids.

关 键 词：Fe3O4磁流体 聚乙二醇-6000 化学共沉淀法 制备 性质 

分 类 号：R943[医药卫生—药剂学]