Advances in Electromagnetic Interference Shielding Materials with Low Reflection

Li Lang1

Weining Ren1

Jingyi Men1

Xinyuan Mao1

Zelong Yang1

Shengrui Zhang1

Lei Wang1,2, Email

1School of Chemistry and Environment Science, Shaanxi University of Technology, Hanzhong, Shaanxi, 723001, China
2School of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Macromolecular Science and Technology, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China

 

Abstract

With the rapid development of electronic information technology, electromagnetic radiation is ubiquitous in the environment, seriously interfering with the normal operation of other electronic components and human health. However, traditional metal-based electromagnetic interference (EMI) shielding materials usually cause high reflection, resulting in secondary environmental pollution. Therefore, the development of EMI shielding materials with low reflection coefficient (R) and high EMI shielding effectiveness (SE) has received extensive attention from scholars. In this review, the research progress and development trends of low-reflection EMI shielding materials are systematically expounded. Firstly, the shielding mechanism of low-reflection EMI shielding materials is briefly introduced. Then, the preparation methods and structural designs of low-reflection EMI shielding materials are reviewed in detail. Finally, the key scientific and technological problems of low-reflection EMI shielding materials are proposed, and the future development trends are prospected.