摘要
磁性纳米粒由于其特殊的磁性能和超微粒子特性,在磁性材料领域有着巨大的应用价值,但未经表面有机改性的产品易于团聚且在部分基体材料中很难相容,限制了其应用范围的扩大。综述了磁性纳米粒的表面有机改性机理和表面吸附改性、表面偶联改性、表面接枝改性等几种常用有机改性类型,分析和评述了各有机改性的特征,展望了今后的研究方向。
Magnetic nanoparticles have great value in the magnetic field due to its unique magnetic properties and characteristics of ultrafine particles, but the product without surface organic modification limits the expansion of its scope of application for the magnetic nanoparticles that easy to reunite and difficult to blend into some body material. The mechanism of surface organic modification of magnetic nanoparticles and its surface absorption modification, surface coupling modification, surface grafting modification and so on are summarized in detail,and the character of every organic modification is analyzed and discussed. Finally, the prospect of further study also is summarized.
基金
上海市重点学科项目(T0503和P0502)
上海市教委项目(05EZ21)
上海市研究生创新基金项目(JWCXSL0802)
关键词
磁性纳米粒
表面
有机改性
magnetic nanoparticles, surface, organic modification
