Electromagnetic interference shielding applications of poly-ether-ether-ketone (PEEK)-based hybrids and composites

Abstract

With the advancement of technology, electromagnetic interference (EMI) and electromagnetic radiation pollution have become a serious global problem. Polymeric composites have been widely used as an alternative to metals for electromagnetic shielding, which is the most efficient material. Polyether ether ketone (PEEK) is a high-performance engineering polymer with outstanding mechanical, chemical, and thermal properties. It is frequently employed in industries that require EMI protection, such as aircraft, space exploration, and military. In recent years, a large number of studies on PEEK polymers with EMI shielding properties have been performed. These studies mainly focused on the preparation of the composites added with carbon-based or metal-based nanoparticles, carbon fibers, metal-coated carbon fibers, and hybrid additives in the PEEK polymer matrix or PEEK blends. This chapter reviews the representative additives in PEEK composites or blends, the preparation methods, and the EMI shielding properties. Moreover, the relationship between EMI shielding properties and other material properties is also discussed. The application of these composites in different industries and the expecting prospects in this emerging field are introduced. © 2026 Elsevier Inc. All rights reserved.