| Fe3O4/ 聚吡咯复合材料的制备及表征 |
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| 引用本文： | 陈爱华,王海侨,赵彬,王静,李效玉.Fe3O4/ 聚吡咯复合材料的制备及表征[J].复合材料学报,2004,21(2):157-160. |
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| 作者姓名： | 陈爱华 王海侨 赵彬 王静 李效玉 |
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| 作者单位： | 北京化工大学,材料科学与工程学院,可控化学反应科学与技术基础教育部重点实验室,北京,100029 |
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| 摘 要： | 以化学沉淀法制备Fe3O4 纳米粒子, 采用乙醇对Fe3O4 纳米粒子表面进行处理, 使其表面有机化, 然后通过乳液原位复合制备Fe3O4 / 聚吡咯复合材料。利用TEM, XPS, 四探针测试仪和震荡磁力计对其进行表征和检测。结果表明: 经醇处理的Fe3O4 纳米粒子的分散性得到明显改善, Fe3O4 纳米粒子被包覆在聚吡咯层内, 包覆层厚度为10 nm 左右, 复合材料具有优良的电性能和磁性能, 电导率e= 7. 69 s/ cm～13. 6 s/ cm, 饱和磁强度Ms= 12. 06 emu/ g～24. 38 emu/ g, 矫顽力Hc= 11 Oe～41 Oe。其环境稳定性明显优于纯聚吡咯。
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| 关 键 词： | 复合材料 导电性 导磁性 聚吡咯 Fe3O4 纳米粒子 |
| 文章编号： | 1000-3851(2004)02-0157-04 |
| 收稿时间： | 2002-12-03 |
| 修稿时间： | 2003-02-20 |
PREPARATION AND CHARACTERIZATION OF Fe3O4 / POLYPYRROLE( PPy) COMPOSITES |
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| CHEN Aihua,WANG Haiqiao,ZHAO Bin,WANG Jin,LI Xiaoyu.PREPARATION AND CHARACTERIZATION OF Fe3O4 / POLYPYRROLE( PPy) COMPOSITES[J].Acta Materiae Compositae Sinica,2004,21(2):157-160. |
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| Authors: | CHEN Aihua WANG Haiqiao ZHAO Bin WANG Jin LI Xiaoyu |
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| Affiliation: | The Key Laboratory of Science and Technology of Controllable Chemical Reaction, Ministry of Education, School of Material Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | Fe3O4 nanoparticles were prepared by a precipitation method. The Fe3O4 nanoparticles were dealt with ethanol to form an organic surface. Then polypyrrole composite was polymerized by the emulsion polymerization method in the presence of these Fe3O4 nanoparticles. The structural characterization by TEM, XPS, and AAS proved that the dispersion of Fe3O4 nanoparticles dealt with alcohol was better than that of naked ones. Fe3O4 nanoparticles were entrapped or encapsulated in the PPy chain. The thickness of the PPy layer was about 10 nm. The Fe3O4 / PPy composites showed electrical and ferromagnetic property( e= 7. 69 s/ cm～13. 6 s/ cm, Ms= 12. 06 emu/ g～24. 38 emu/ g, Hc= 11 Oe～41 Oe) . The environmental stability of composites was better than that of PPy. |
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| Keywords: | functional composites electrical property ferromagnetic property polypyrrole Fe_3O_4 nanoparticles |
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