Microwave Behavior of PVC/YIG/Carbon Material Composite Films in Х-band
| Authors | |
| Affiliations | 1Chuiko Institute of Surface Chemistry, National Academy of Science of Ukraine, 03164 Kyiv, Ukraine 2Institute of Engineering Thermophysics, National Academy of Science of Ukraine, 03057 Kyiv, Ukraine 3Taras Shevchenko National University of Kyiv, 01601 Kyiv, Ukraine 4V.I. Vernadsky Institute of General and Inorganic Chemistry, National Academy of Science of Ukraine, 03142 Kyiv, Ukraine 5Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Science of Ukraine, 02160 Kyiv, Ukraine 6Institute of Macromolecular Chemistry, National Academy of Science of Ukraine, 02155 Kyiv, Ukraine |
| Е-mail | mipigor@gmail.com |
| Issue | Volume 8, Year 2016, Number 4 |
| Dates | Received 0 May 2026; revised manuscript received 19 August 2026; published online 21 August 2026 |
| Citation | , J. Nano- Electron. Phys. 8 No 4, 04003 (2026) |
| DOI | https://doi.org/10.21272/jnep.18(4).04003 |
| PACS Number(s) | 41.20.Jb, 77.22.Gm, 82.35.Np |
| Keywords | Yttrium iron garnet, Polyvinyl chloride, Composite material (3) , Carbon materials (2) , Electromagnetic shielding, Microwave absorbing materials. |
| Annotation | This study reports the fabrication and microwave characterization of flexible poly(vinyl chloride) (PVC)–based composite films containing yttrium–iron garnet (YIG) and carbon fillers with different morphology, namely multi-walled carbon nanotubes (MWCNTs), carbon nanoparticles (CNPs), and activated carbon (AC). Composite films with a thickness of approximately 0.25 mm were prepared by hot pressing at 175 °C and 10 MPa, using 20 wt.% YIG, 10 wt.% carbon filler (relative to PVC), and dibutyl phthalate as a plasticizer. The used fillers were characterized by scanning electron microscopy (SEM), and thermogravimetric analysis. SEM analysis revealed that the YIG powder consists of agglomerated, nearly spherical crystallites. The IR spectra of the composite films demonstrated characteristic absorption bands of PVC and YIG; when introducing fillers, slight shifts of individual characteristic bands of the polymer were observed, which indicates a slight interaction between the fillers and the PVC matrix. X-band (8–12 GHz) microwave measurements demonstrated a strong dependence of reflection, transmission, and absorption on the nature of the carbon filler. Compared to neat PVC, electromagnetic wave absorption increased markedly following the trend MWCNTs CNPs AC across the entire frequency range. At 8 GHz, absorption increased from approximately 5.6% (AC) to 26.3% (CNPs); at 10 GHz, from 4.4% (AC) to 26.1% (MWCNTs); and at 12 GHz, from 4.9% (AC) to 31% (MWCNTs). The smallest enhancement in absorption was observed for the PVC/YIG/AC composite, whereas the largest increase was achieved for PVC/YIG/MWCNT films. These results demonstrate that carbon filler morphology plays a decisive role in governing the microwave absorption behavior of PVC/YIG/carbon composites. Among the investigated fillers, MWCNTs provide the most efficient microwave absorption in the X-band, highlighting the potential of these ternary composites for use in lightweight, flexible microwave-absorbing and electromagnetic irradiation-shielding coatings, which will provide protection from electromagnetic radiation. |
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