用于电磁干扰屏蔽和电磁波吸收的柔性电磁防护材料的进展与挑战OA

Wireless local area network(WLAN)and fifth generation(5G)are rapidly progressing,so people have focused on high-efficiency electromagnetic protection(EMP)materials.However,early EMP materials often prioritized electromagnetic attenuation efficiency while neglecting mechanical flexibility.This limitation has restricted their application in emerging fields such as wearable electronics,soft robotics,and intelligent sensing systems.Therefore,flexible EMP materials need to be developed.Flexible EMP materials were systematically divided into flexible electromagnetic interference(EMI)shielding materials and flexible electromagnetic wave absorption(EWA)materials in this review.In addition,these two categories were further classified according to different material systems and design strategies.Flexible EMI shielding materials,based on different substrates of conductive polymers,carbon-based nanomaterials,MXenes,and metal composites,were summarized for their high shielding effectiveness(SE)and high compliance.Thin-film architecture has been widely applied in both EMI shielding and wave absorption systems,and the role of it was also introduced.Subsequently,flexible EWA materials with a variety of structural designs,including polymer-based composites,sponges,foams,and aerogels,have been systematically introduced.In this review,a comprehensive understanding of flexible EMI shielding materials and EWA materials is given,the mechanism and material classification of recent research results are explained,and the guiding significance of design ideas for next-generation flexible EMP materials is provided.