Study of the shielding properties of polyvinyl butyral films filled with carbon nanomaterials
Abstract
The ubiquity of sources of ultrahigh frequency radiation poses a potential threat to biological objects and the operation of sensitive electronics. In this regard, the development of effective protection measures is an urgent task. In this work, thin films based on polyvinyl butyral were obtained with fillings in the form of single-walled (SWCNTs) and multi-walled nanotubes (MWCNTs), reduced graphene oxide and carbon black of various grades. The morphology of the surface was studied using a scanning electron microscope. This shows the general patterns in the distribution of carbon nanomaterials in the polymer matrix. The absorption, transmission, and reflection coefficients of electromagnetic waves in the microwave range were also obtained. It is shown that films with the addition of SWCNTs exhibit high wave reflection coefficients and are reflective screens. The work done has demonstrated the prospects for further study of flexible absorbent coatings based on polymer composite materials.
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Copyright (c) 2025 Ivan A. Kozhevnikov, Mikhail K. Torkunov, Igor A. Chmutin, Valery P. Melnikov, and Kseniya A. Shiyanova
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