Abstract
Nanostructured carbon-based polymeric nanocomposites are gaining research interest because of their cost-effectiveness, lightweight, and robust electromagnetic interference (EMI) shielding performance. Till now, it is a great challenge to design and fabricate highly scalable, cost-effective nanocomposites with superior EMI shielding performance. Herein, highly scalable EMI shielding material with tunable absorbing behaviors comprising of low-budget ketjen black (K-CB) reinforced poly(methyl methacrylate) (PMMA) nanocomposites have been prepared using simple solvent assisted solution mixing technique followed by hot compression technique. The morphological investigation revealed the homogeneous distribution of K-CB and strong interfacial interaction in PMMA matrix, which validated the strong reinforcement and other intriguing properties of the nanocomposites. The PMMA nanocomposites showed a low percolation threshold (2.79 wt%) and excellent electrical conductivity due to the formation of 3D conductive network like architecture within the polymer matrix. Specifically, the 10 wt% K-CB nanocomposite possessed a superior EMI shielding performance of about 28 dB for X-band frequency range. Further, a huge change in EMI shielding performance of PMMA nanocomposites is observed with varying thickness. The brand new K-CB decorated PMMA nanocomposites are expected to open the door for next-generation cost-effective EMI shielding materials for academic and industrial applications.
| Original language | English |
|---|---|
| Pages (from-to) | 2414-2427 |
| Number of pages | 14 |
| Journal | Polymer Engineering and Science |
| Volume | 60 |
| Issue number | 10 |
| DOIs | |
| State | Published - 1 Oct 2020 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2020 Society of Plastics Engineers
Funding
This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education [Grant Number NRF‐2016R1D1A3B03932709]. Narayan Ch. Das also thanks to the SERB‐DST (Grand no. ECR/2016/000048), Govt. of India for the financial support. SERB‐DST, Grant/Award Number: ECR/2016/000048; National Research Foundation of Korea, Grant/Award Number: NRF‐2016R1D1A3B03932709 Funding information This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education [Grant Number NRF-2016R1D1A3B03932709]. Narayan Ch. Das also thanks to the SERB-DST (Grand no. ECR/2016/000048), Govt. of India for the financial support.
| Funders | Funder number |
|---|---|
| SERB‐DST | |
| Department of Science and Technology, Ministry of Science and Technology, India | ECR/2016/000048 |
| Ministry of Education | NRF‐2016R1D1A3B03932709 |
| National Research Foundation of Korea |
Keywords
- carbon black
- electrical conductivity
- electromagnetic interference shielding
- flexural properties
- low percolation threshold