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Novel Water-Based Paints for Composite Materials Used in Electromagnetic Shielding Applications
 
 
Article

Carbon Allotropes-Based Paints and Their Composite Coatings for Electromagnetic Shielding Applications

1
Center of Materials Technology and Photonics, Hellenic Mediterranean University, 71410 Heraklion, Crete, Greece
2
Chemistry Department, University of Crete, 70013 Heraklion, Crete, Greece
3
National Institute for Research and Development in Microtechnologies (IMT-Bucharest), 023573 Bucharest, Romania
4
Petroleum and Gas University of Ploiesti, 100680 Ploiesti, Romania
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Department of Electrochemical Power Engineering and Chemistry, Kyiv National University of Technologies and Design, 01011 Kyiv, Ukraine
6
Department of Electrical and Computer Engineering, Hellenic Mediterranean University, 71410 Heraklion, Crete, Greece
*
Authors to whom correspondence should be addressed.
Academic Editor: Raul Arenal
Nanomaterials 2022, 12(11), 1839; https://doi.org/10.3390/nano12111839
Received: 18 April 2022 / Revised: 17 May 2022 / Accepted: 24 May 2022 / Published: 27 May 2022
(This article belongs to the Special Issue Nanostructured Materials for Electromagnetic Shielding Applications)
The present manuscript reports on optimized formulations of alcohol-based conductive paints for electromagnetic interference shielding (EMI), which can ensure compatibility and reduce the visibility of electronic equipment, as a continuation of our previous work in this field, which examined water-based formulations for other applications. Graphite, carbon black, graphene, Fe3O4, Fe ore, and PEDOT:PSS in various ratios and combinations were employed in an alcohol base for developing homogeneous paint-like fluid mixtures that could be easily applied to surfaces with a paintbrush, leading to homogeneous, uniform, opaque layers, drying fast in the air at room temperature; these layers had a reasonably good electrical conductivity and, subsequently, an efficient EMI-shielding performance. Uniform, homogeneous and conductive layers with a thickness of over 1 mm without exfoliations and cracking were prepared with the developed paints, offering an attenuation of up to 50 dB of incoming GHz electromagnetic radiation. The structural and morphological characteristics of the paints, which were studied in detail, indicated that these are not simple physical mixtures of the ingredients but new composite materials. Finally, mechano-climatic and environmental tests on the coatings demonstrated their quality, since temperature, humidity and vibration stressors did not affect them; this result proves that these coatings are suitable for commercial products. View Full-Text
Keywords: EMI shielding applications; alcohol-based conductive paints; multicomponent nanocomposites; carbon-based materials EMI shielding applications; alcohol-based conductive paints; multicomponent nanocomposites; carbon-based materials
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MDPI and ACS Style

Tudose, I.V.; Mouratis, K.; Ionescu, O.N.; Romanitan, C.; Pachiu, C.; Pricop, E.; Khomenko, V.H.; Butenko, O.; Chernysh, O.; Barsukov, V.Z.; Suchea, M.P.; Koudoumas, E. Carbon Allotropes-Based Paints and Their Composite Coatings for Electromagnetic Shielding Applications. Nanomaterials 2022, 12, 1839. https://doi.org/10.3390/nano12111839

AMA Style

Tudose IV, Mouratis K, Ionescu ON, Romanitan C, Pachiu C, Pricop E, Khomenko VH, Butenko O, Chernysh O, Barsukov VZ, Suchea MP, Koudoumas E. Carbon Allotropes-Based Paints and Their Composite Coatings for Electromagnetic Shielding Applications. Nanomaterials. 2022; 12(11):1839. https://doi.org/10.3390/nano12111839

Chicago/Turabian Style

Tudose, Ioan Valentin, Kyriakos Mouratis, Octavian Narcis Ionescu, Cosmin Romanitan, Cristina Pachiu, Emil Pricop, Volodymyr H. Khomenko, Oksana Butenko, Oksana Chernysh, Viacheslav Z. Barsukov, Mirela Petruta Suchea, and Emmanouel Koudoumas. 2022. "Carbon Allotropes-Based Paints and Their Composite Coatings for Electromagnetic Shielding Applications" Nanomaterials 12, no. 11: 1839. https://doi.org/10.3390/nano12111839

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