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- Title
Efficient electromagnetic interference shielding performance of poly(amide imide)/MWCNT‐based nanocomposites.
- Authors
Rani, Priyanka; Malik, Rajender Singh
- Abstract
The establishment of conducting network in a polymer matrix is essential for the improvement in electrical conductivity and electromagnetic interference (EMI) shielding performance. Here, we report the fabrication of nanocomposites comprising polyamideimide and multiwalled carbon nanotubes (MWCNTs) (from 0.5 to 5.0 wt%). The effect of MWCNTs on electrical conductivity, morphology, and EMI shielding behavior has been examined. The morphology of nanocomposites was investigated by scanning electron microscope and x‐ray diffraction, which confirms the uniform dispersion of MWCNTs in the matrix. The electrical conductivity increases from 1.4 × 10−12 to 0.145 × 10−4 S/cm by the inclusion of MWCNTs. The composite PACNT‐5 exhibits a good EMI shielding efficiency of −17 dB in the X‐band region by employing only 5.0 wt% of MWCNTs. The incorporation of MWCNTs formed an interconnected conducting network, which boost the transferability of electrons or charge carriers. This work demonstrates a feasible, simple, and effective strategy for the fabrication of potential PAI/MWCNT composites for highly efficient EMI shielding materials.
- Subjects
ELECTROMAGNETIC interference; ELECTROMAGNETIC shielding; MULTIWALLED carbon nanotubes; NANOCOMPOSITE materials; ELECTRIC conductivity; AMIDES
- Publication
Journal of Applied Polymer Science, 2024, Vol 141, Issue 22, p1
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.55442