Effect of carbon nanofiber reinforcement on electromagnetic interference shielding effectiveness of syntactic foam

Liying Zhang; Lin Biao Wang; Kye Yak See; J. Ma

doi:10.1007/s10853-013-7597-x

journal article·2013-11

Effect of carbon nanofiber reinforcement on electromagnetic interference shielding effectiveness of syntactic foam

Liying Zhang, Lin Biao Wang, Kye Yak See, J. Ma

Journal of Materials Science· Volume 48· Issue 21

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Source abstract

Abstract

A novel carbon nanofiber (CNF)-reinforced syntactic foam (CNFRSF) was fabricated. The electrical conductivity and electromagnetic interference (EMI) shielding effectiveness (SE) of CNFRSF with various volume fraction of CNFs (0–2.0 vol%) were evaluated experimentally. The measurement of EMI SE was carried out in a frequency range of 30 MHz to 1.2 GHz. The experimental results showed that the SE of CNFRSF increases with increase of CNFs content and CNF is more effective in providing EMI shielding compared to chopped carbon fiber and long carbon fiber due to the larger aspect ratio. The CNFRSF having 2.0 vol% CNFs has a SE of 25 dB, which is good enough for most practical applications. Compared to CNFs composites, the EMI SE of CNFRSF has been enhanced by the presence of hollow carbon microspheres. The underlying mechanism is discussed in detail.

Source: openaire · Quality: candidate unverified · Source record ↗

Research context

Nanomaterials Composites

OpenAlex topics: Electromagnetic wave absorption materials · Advanced Antenna and Metasurface Technologies · Cellular and Composite Structures

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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