【摘要】 各种电子设备的广泛应用,使得电磁辐射与电磁污染日益严重,电磁屏蔽材料应运而生。泡沫复合材料具有密度低,强度高,抗氧化,耐久性强等优点,是一种新型电磁屏蔽材料。本文介绍了电磁屏蔽碳系纳米粒子/聚合物基泡沫复合材料的最新研究进展。基于材料对电磁波的屏蔽机理,重点分析和概述了复合材料中的吸波剂、微观结构及宏观形貌对电磁屏蔽性能的影响。最后对电磁屏蔽碳系纳米粒子/聚合物基泡沫复合材料的未来发展提出了展望。结果表明,对碳系吸波剂进行改性、构建非均匀结构、设计多样化宏观形貌均可提高泡沫复合材料的屏蔽性能。此外,对复杂电磁环境下电磁屏蔽材料的设计与开发具有重要的理论意义。更多还原

【Abstract】 With wide application of electronic equipment,electromagnetic radiation pollution is getting more serious,which makes electromagnetic shielding materials come into being.Polymer-based foam composite is a new electromagnetic shielding material with low density,high strength,oxidation resistance and durability.In this paper latest research progress on carbon nanoparticles/polymer-based foam composites was introduced.Based on electromagnetic shielding mechanism,effects of absorbing agent,microstructure and macroscopic on the shielding properties of composites was discussed.Future development of electromagnetic shielding carbon nanoparticles/polymer-based foam composites was prospected.Results show that carbon absorbing agent modification,non-uniform structure construction and macroscopic features designing could improve shielding effectiveness of foam composites.This review is valuable for the design and development of electromagnetic shielding materials in complex electromagnetic environments.更多还原