Surfactant assisted tuning of electrical conductivity, electromagnetic interference shielding effectiveness, wetting properties of poly(lactic acid)-expanded graphite-magnetite nanocube hybrid bio-nanocomposites
Article
Balakrishnan, Keerthana, Senthilkumar, Kanya Koothanatham, N, Gokila, Thangavelu, Rajendra Kumar Ramasamy, Annamalai, Pratheep Kumar and Raghava, Ramanujam Brahmadesam Thoopul Srinivasa. 2024. "Surfactant assisted tuning of electrical conductivity, electromagnetic interference shielding effectiveness, wetting properties of poly(lactic acid)-expanded graphite-magnetite nanocube hybrid bio-nanocomposites." European Polymer Journal. 214. https://doi.org/10.1016/j.eurpolymj.2024.113135
Article Title | Surfactant assisted tuning of electrical conductivity, electromagnetic interference shielding effectiveness, wetting properties of poly(lactic acid)-expanded graphite-magnetite nanocube hybrid bio-nanocomposites |
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ERA Journal ID | 1668 |
Article Category | Article |
Authors | Balakrishnan, Keerthana, Senthilkumar, Kanya Koothanatham, N, Gokila, Thangavelu, Rajendra Kumar Ramasamy, Annamalai, Pratheep Kumar and Raghava, Ramanujam Brahmadesam Thoopul Srinivasa |
Journal Title | European Polymer Journal |
Journal Citation | 214 |
Article Number | 113135 |
Number of Pages | 13 |
Year | 2024 |
Publisher | Elsevier |
ISSN | 0014-3057 |
1873-1945 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.eurpolymj.2024.113135 |
Web Address (URL) | https://www.sciencedirect.com/science/article/abs/pii/S0014305724003963 |
Abstract | The study aimed at demonstrating polyvinylpyrrolidone (PVP) amount is critical for tuning electrical conductivity and electromagnetic interference shielding effectiveness (EMI SE) of poly(lactic acid)-expanded graphite (ExGr)-magnetite (Fe3O4) nanocube hybrid nanocomposites. An optimum loading of PVP (1 wt.%) was found to disperse the nanofillers resulting in enhanced electrical conductivity and EMI SE in the X-band dominated by the absorption mechanism. The electrical conductivity enhancement in hybrid nanocomposites was not only attributed to the network formation between fillers but also to the thickness of the coated surfactant layer. The inter-junction capacitance and real part of relative permittivity of the hybrid nanocomposites were also enhanced at 1 wt.% PVP addition in comparison to 0 wt.% and 2 wt.% surfactant loading. The water contact angle was found to depend on the surface roughness of the film, which varied with both PVP and ExGr loadings. These PLA-based hybrid nanocomposites can be used as microwave-absorbing material. |
Keywords | Electrical properties; Polymer-matrix composites ; X-ray diffraction ; Electromagnetic interference shielding ; Impedance spectroscopy |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401609. Polymers and plastics |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Amrita School of Physical Sciences Coimbatore, India |
Bharathiar University, India | |
Centre for Future Materials | |
School of Agriculture and Environmental Science |
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https://research.usq.edu.au/item/z8562/surfactant-assisted-tuning-of-electrical-conductivity-electromagnetic-interference-shielding-effectiveness-wetting-properties-of-poly-lactic-acid-expanded-graphite-magnetite-nanocube-hybrid-bio
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