Journal of Appliance Science & Technology ›› 2025, Vol. 0 ›› Issue (zk): 548-551.doi: 10.19784/j.cnki.issn1672-0172.2025.99.114

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Research progress of electromagnetic shielding composites with asymmetric structures

YUAN Xiaoxi, YANG Tongqian, JIAO Can   

  1. CHEARI(Beijing) Certification & Testing Co., Ltd. Beijing 100176
  • Published:2025-12-30

Abstract: addresses electromagnetic radiation from 5G communication, smart appliances, and wearable devices by studying asymmetric structured electromagnetic shielding composites to overcome the drawbacks of traditional metal-based shields. The characterization methods for EMI SE are outlined, and progress is systematically reviewed regarding multilayer, fiber, porous, and segregated structures. Results indicate that these materials achieve a synergistic “absorption-reflection-reabsorption” mechanism via their designed structures, enhancing shielding effectiveness while reducing secondary reflection pollution. Their advantages in lightness and flexibility make them highly applicable for electromagnetic protection in smart household appliances and wearable electronics. Future work should focus on interdisciplinary design, intelligent regulation, and green sustainability to overcome challenges like interfacial stability and scalable production for achieving high absorption, ultra-low reflection, and environmental friendliness.

Key words: Polymers, Nanocomposites, Asymmetric structures, Electromagnetic shielding, Household appliances

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