volume | PIER Journals

Abstract

This paper presents a comparative study of electromagnetic interference (EMI) shielding properties of PVDF-PVP composite film with VGCNF as a conducting filler. The films were fabricated using solvent casting and further tested for their mechanical and thermal properties. The process was followed by a comparative analysis of shielding effectiveness calculated via dielectric parameters against the shielding measured through scattering parameters with the help of a network analyzer. Scanning Electron Microscopy was also done to better understand the morphological structure of the films. The film, with a thickness of around 0.18 mm, showcased shielding effectiveness within 25 dB-34 dB across a frequency band of 12 GHz to 18 GHz while being flexible and mechanically durable.

1. Kong, L. B., Z. W. Li, L. Liu, R. Huang, M. Abshinova, Z. H. Yang, C. B. Tang, P. K. Tan, C. R. Deng, and S. Matitsine, "Recent progress in some composite materials and structures for specific electromagnetic applications," International Materials Reviews, Vol. 58, No. 4, 203-259, 2013.

2. Geetha, S., K. K. Satheesh Kumar, Chepuri R. K. Rao, M. Vijayan, and D. C. Trivedi, "EMI shielding: Methods and materials --- A review," Journal of Applied Polymer Science, Vol. 112, No. 4, 2073-2086, 2009.

3. Morgan, D., Handbook of EMC Testing and Measurement, Vol. 8, Institution of Electrical Engineers (IEE), London, 1995.

4. Kheifets, Leeka, Abdelmonem A. Afifi, and Riti Shimkhada, "Public health impact of extremely low-frequency electromagnetic fields," Environmental Health Perspectives, Vol. 114, No. 10, 1532-1537, 2006.
doi:10.1289/ehp.8977

5. Rathi, Vikas, Varij Panwar, Gopinathan Anoop, Mayank Chaturvedi, Kapil Sharma, and Brijesh Prasad, "Flexible, thin composite film to enhance the electromagnetic compatibility of biomedical electronic devices," IEEE Transactions on Electromagnetic Compatibility, Vol. 61, No. 4, 1033-1041, 2018.

6. Shahnawaz, Mohammad, Himangshu B. Baskey, and M. Jaleel Akhtar, "Ultra-thin LIG film for X band EMI shielding applications," 2023 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON), 1-4, Ahmedabad, India, 2023.

7. Gupta, Kamal, M. J. Nine, Craig Denton, and Dusan Losic, "Electromagnetic shielding using graphene material in wide bandwidth of 1.5 GHz-10 GHz," 2022 International Symposium on Antennas and Propagation (ISAP), 553-554, Sydney, Australia, 2022.

8. Mazu, N. N., M. A. H. Mohd Abdul Majid, N. H. Osman, J. Y. C. Liew, and Muhammad M. Ramli, "Shielding efficiency study of sodium based chitosan polymer with different types of filler," 2020 IEEE International RF and Microwave Conference (RFM), 1-4, Kuala Lumpur, Malaysia, 2020.

9. Gargama, H., A. K. Thakur, and S. K. Chaturvedi, "Polyvinylidene fluoride/nanocrystalline iron composite materials for EMI shielding and absorption applications," Journal of Alloys and Compounds, Vol. 654, 209-215, Jan. 2016.

10. Sampath, Udeni Gunathilake T. M., Yern Chee Ching, Cheng Hock Chuah, Johari J. Sabariah, and Pai-Chen Lin, "Fabrication of porous materials from natural/synthetic biopolymers and their composites," Materials, Vol. 9, No. 12, 991, Dec. 2016.

11. González, M., M. Crespo, J. Baselga, and J. Pozuelo, "Carbon nanotube scaffolds with controlled porosity as electromagnetic absorbing materials in the gigahertz range," Nanoscale, Vol. 8, No. 20, 10724-10730, 2016.

12. Kocifaj, Miroslav, Jozef Klačka, František Kundracik, and Gorden Videen, "Charge-induced electromagnetic resonances in nanoparticles," Annalen der Physik, Vol. 527, No. 11-12, 765-769, Dec. 2015.

13. Kuang, Tairong, Lingqian Chang, Feng Chen, Yan Sheng, Dajiong Fu, and Xiangfang Peng, "Facile preparation of lightweight high-strength biodegradable polymer/multi-walled carbon nanotubes nanocomposite foams for electromagnetic interference shielding," Carbon, Vol. 105, 305-313, 2016.

14. Plaquevent, Jean-Christophe, Jocelyne Levillain, Frédéric Guillen, Catherine Malhiac, and Annie-Claude Gaumont, "Ionic liquids: New targets and media for α-amino acid and peptide chemistry," Chemical Reviews, Vol. 108, No. 12, 5035-5060, 2008.

15. Lins, Luanda Chaves, Sébastien Livi, Manuel Maréchal, Jannick Duchet-Rumeau, and Jean-François Gérard, "Structural dependence of cations and anions to building the polar phase of PVDF," European Polymer Journal, Vol. 107, 236-248, Oct. 2018.

16. Panwar, Varij, Bongsik Kang, Jong-Oh Park, Sukho Park, and R. M. Mehra, "Study of dielectric properties of styrene-acrylonitrile graphite sheets composites in low and high frequency region," European Polymer Journal, Vol. 45, No. 6, 1777-1784, 2009.

17. Nanni, F., P. Travaglia, and M. Valentini, "Effect of carbon nanofibres dispersion on the microwave absorbing properties of CNF/epoxy composites," Composites Science and Technology, Vol. 69, No. 3-4, 485-490, 2009.

18. Bera, R., S. Paria, S. K. Karan, A. K. Das, A. Maitra, and B. B. Khatua, "NaCl leached sustainable porous flexible Fe3O4 decorated RGO-polyaniline/PVDF composite for durable application against electromagnetic pollution," EXPRESS Polymer Letters, Vol. 11, No. 5, 419-433, May 2017.
doi:10.3144/expresspolymlett.2017.40

Dr. Harsh Mishra

Dr. Nikhil Negi

Dr. Vikas Rathi

Dr. Brijesh Prasad

Dr. Varun Mishra