| 化学修饰对Fe3O4磁性微球性能的影响 |
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| 引用本文： | 赵慧君,王德平,黄文旵,张中杰. 化学修饰对Fe3O4磁性微球性能的影响[J]. 材料研究学报, 2004, 18(5): 494-498 |
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| 作者姓名： | 赵慧君 王德平 黄文旵 张中杰 |
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| 作者单位： | 同济大学;河南省计量科学研究院 |
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| 基金项目： | 国家自然科学基金 , 上海市科委资助项目 |
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| 摘 要： | 采用部分还原沉淀法制备了Fe3O4磁性微球,并用硅烷偶联剂对其进行了表面修饰.利用X-射线衍射(XRD)、透射电子显微镜(TEM)、原子力显微镜(AFM)、红外光谱(IR)和分光光度计等手段对其结构和性能进行了表征和测量,研究了硅烷偶联剂对磁性纳米微球性能的影响.结果表明,修饰后的磁性纳米微球具有良好的分散性和磁响应性,并且在强酸环境中具有良好的稳定性.经不同硅烷偶联剂修饰后的微球表面可带有-OH,-NH2,-NH,-C=O,-C=C等多种有机功能基团.
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| 关 键 词： | 复合材料 Fe3O4 磁性微球 化学修饰 硅烷偶联剂 |
| 文章编号： | 1005-3093(2004)05-0494-05 |
| 收稿时间： | 2004-11-05 |
| 修稿时间： | 2003-11-18 |
Influence of chemical modification on the performance of Fe3O4 magnetic microspheres |
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| ZHAO Huijun WANG Deping HUANG Wenhai. Influence of chemical modification on the performance of Fe3O4 magnetic microspheres[J]. Chinese Journal of Materials Research, 2004, 18(5): 494-498 |
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| Authors: | ZHAO Huijun WANG Deping HUANG Wenhai |
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| Affiliation: | ZHAO Huijun~1 WANG Deping~1 HUANG Wenhai~ |
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| Abstract: | Magnetic microspheres were prepared through partial reduction-precipitation method. The surface of particles was modified by silane-coupling agents. The structure and properties of these magnetic microspheres were characterized by X-ray, TEM, AFM, IR, etc. The magnetic nanoparticles modified by silane- coupling agents present favorable dispersibility, responsibility to magnetism and resist against the corrosion of acid or alkali solution. The results of investigation on modified nanoparticles with different silane-coupling agents also indicate that the particles have multi functional organic groups on their surface, such as -OH, -NH_2, -NH, -C=O, -C=C. |
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| Keywords: | compound materials Fe_3O_4 magnetic microspheres chemical modification silanecoupling agents |
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