Abstract
Electromagnetic interference (EMI) or radiation can generate negative influences on the work of electronics and even human health. It is urgently required to develop high-performance EMI-shielding materials. Conductive polymer nanocomposites (CPCs) have been considered promising EMI-shielding materials due to their advantages of low mass density, chemical stability, shaping capability, and design flexibility. Particularly, the integration of porous microstructures in the CPC-based EMI shields is increasingly popular for improving shielding effectiveness by enhancing the multiple reflections of incident EM waves and further achieving weight reduction of the EMI shields. On the basis of the pore alignment, the porous CPCs are divided into isotropic and anisotropic nanocomposite foams, for example, the isotropic foams possess randomly distributed pores while the anisotropic foams show well-arranged pores.
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