巨磁阻高分子复合材料的研究进展  

Progress in Polymer Composites with Giant Magnetoresistance Effect

作　　者：宋义虎[1,2] 郑强[1,2] 

机构地区：[1]浙江大学高分子科学与工程学系高分子合成与功能构造教育部重点实验室,浙江杭州310027 [2]贵州大学材料与冶金工程学院,贵州贵阳550003

出　　处：《高分子材料科学与工程》2014年第2期179-185,共7页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(51373149);国家自然科学重点基金资助项目(51333004)

摘　　要：传统巨磁阻(GMR)材料广泛应用于生物检测、磁记录与储存、汽车转速传感器、高效电磁屏蔽/吸收材料等领域。由于具有易加工、高柔韧性等优点,GMR高分子复合材料近年来备受关注。文中介绍了涂层型、聚苯胺型、磁性纳米粒子填充型GMR高分子复合材料的制备、结构与性能,在分析制备方法对GMR性能影响的基础上,提出今后GMR高分子复合材料研究的重要方向,重点评述磁致结构化复合材料粒子相结构-熔体流变行为-凝聚态GMR性能关系,开发低填充、大GMR效应复合材料结构、性能的调控方法以及高稳定柔性GMR元器件的制作方法。Traditional materials exhibiting giant magnetoresistance （GMR） effect have been widely used in a variety of areas such as biological detection, recording and storage, vehicle speed sensor, and high-efficiency electromagnetic shielding materials. Polymeric composites with GMR effect are easy to process and have high flexibility, which have received a major concern in recent years. This article gave a comprehensive review on preparation, structure and properties of GMR materials based on inorganic coating on polymeric substrates, polyaniline composites and magnetic nanoparticle filled polymers. On the basis of analyzing influence of preparation method on the GMR performance and achievements in theories of GMR and magnetoelasticity, several important research directions were proposed for future investigations of GMR polymeric composites, i.e., carrying out investigations on relationships between filler structure, melt rheology and GMR performance and developing new methods for preparing GMR composites with low filling levels and flexible devices of high stability.

关 键 词：巨磁阻 高分子复合材料材料 性能 

分 类 号：TB33[一般工业技术—材料科学与工程]