| 双层表面活性剂分散制备水基磁流体 |
| Preparation of Water Base Bilayer Surfactants Enveloped Magnetic Fluid |
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| 摘要: |
| 关键词: 水基磁流体 双层表面活性剂 磁导向 |
| 基金项目: |
| Abstract: Fe3O4 magnetic particles were synthesize by chemical co-precipitation. Sodium oleate and poly(ethylene glycol)-4000 were used as bilayer surfactants to envelope the ultra-fine Fe3O4 particles. Then stabilized water base magnetic fluid was obtained. Experiments indicated that surfactants and pH value of the solution had great effect on the stability and size of the magnetic fluid when Fe3O4 particles were synthesized and enveloped. It was the first time to employ this method to prepare magnetic fluid. Using laser diffraction particle size analyzer we found that the average diameter of magnetic fluid was lessen than 84 nanometer. Its magnetization was measured on magnetic balance and the result amounted to 3.84×103A·m-1. Further more， XRD and IR analysis measurements were employed to substantiate the existence of Fe3O4 and surfactant structure. The magnetic fluid can be used as tar-geted-part of nanometer targeted drug delivery system. |
| Keywords: water base magnetic fluid bilayer surfactants magnetic targeted |
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| 摘要点击次数: 1920 |
| 全文下载次数: 1978 |
| 陈晓青,张俊山,杨娟玉,刘覃,蒋新宇.双层表面活性剂分散制备水基磁流体[J].无机化学学报,2003,19(5):547-551. |
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