【摘要】 目的:探讨用于动物实验动脉栓塞的磁性流体材料 Fe₃O₄制备方法。方法:观察比较不同制备条件,如碱比 n、Fe²⁺/Fe³⁺比、反应温度、分散剂等对反应产物的影响。结果:在反应温度36℃～40℃,Fe²⁺:Fe³⁺:OH^-=1:2:n（n>10）,及分散剂存在下制出了粒径0.2～0.8μm、强磁性的 Fe₃O₄材料。结论:控制反应条件是制备合乎要求 Fe₃O₄材料的关键因素。更多还原

【Abstract】 Objective:The aim of this study was to approach the method of preparing the material Fe₃O₄ of magentic fluid for artery embolization in animal experiments.Methods:The different conditions of preparation such as molar ratio n of the alkaline solution,ratio of Fe²⁺/Fe³⁺,temperature of reaction,dis- persants and so on were compared to observe their effect on the properties of reaction products.Results: Under a reaction temperature of 36℃～40℃,Fe²⁺:Fe³⁺:OH^-=1:2:n（n>10）and having dispersants the material Fe₃O₄ with particles of 0.2～0.8 μm in diameter and strong magnetizability was prepared. Conclusion:The control of reaction conditions was a key factor in preparing the material Fe₃O₄ required.更多还原