Construction of a carbon fiber based layer-by-layer (LbL) assembly-a smart approach towards effective EMI shielding

Yudhajit Bhattacharjee, Viraj Bhingardive, Sourav Biswas, Suryasarathi Bose

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

Construction of ultrathin multilayer polymer nanocomposite films by precise layer-by-layer (LbL) architectural assembly with tailor-made properties has been achieved here to block incoming EM radiation. To accomplish this, Mn (manganese)-ferrite nanoparticles were synthesized and incorporated in a thermoplastic matrix (PVDF, polyvinylidene fluoride) along with conductive MWNTs (PNTMn-Fe) by a facile solution blending process. These nanocomposite films were used as outer layers of the LbL assembly. In order to scavenge the transmitted radiation through PNTMn-Fe layers, PVDF films sandwiched with a Ni (nickel)-deposited woven carbon fiber (CF) mat (PCF@NiP), designed using a facile electroless deposition technique. These layers were used as inner layers of the LbL assembly. The different layers were then stacked and hot pressed into a composite structure. This ultrathin (0.60 mm) multilayer architecture showed an extraordinary (52 dB at 18 GHz) shielding effectiveness and thereby promises a smart approach to accomplish a lightweight, high performance, EMI shielding material.

Original languageEnglish
Pages (from-to)112614-112619
Number of pages6
JournalRSC Advances
Volume6
Issue number113
DOIs
StatePublished - 1 Jan 2016
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering

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