Abstract
Fabricating electromagnetic interference (EMI) shielding materials that are multifunctional, highly absorbent, and low reflective is an area of future innovation. However, it is still difficult to properly integrate these properties into a single material. In this article, we discussed absorption-based EMI shielding material that serves high absorption and a low reflection purpose. To address this challenge, we fabricated a poly(p-phenylenediamine-co-xylidine) X-band microwave absorbent material. Structural, compositional, thermal, morphological, and microwave absorption/shielding properties of as-synthesized materials were examined using XRD, FTIR, TG-DTA, NMR, UV–vis, FESEM, and VNA. With a filler loading of 8 wt%, poly(p-phenylenediamine-co-xylidine) co-polymer absorber obtained a minimum reflection loss (RLmini) of −37.5 dB with 2.0 mm thickness. The same sample showed shielding effectiveness (SE) of −38 dB Hence, this multipurpose shielding material has practical uses in signal shielding because of its unique high absorbance performance and outstanding shielding effectiveness capabilities.
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