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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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化学修饰对fe3o4磁性微球性能的影响
Keywords: 复合材料,fe3o4磁性微球,化学修饰,硅烷偶联
Abstract:
？采用部分还原沉淀法制备了fe$_{3}$o$_{4}$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,--nh$_{2}$,--nh,--c=o,--c=c等多种有机功能基团.
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