Influence of Fly Ash Type and Polymer Matrix on the Thermal Conductivity of Polymer Composites
| Authors | L. Melnyk1 , V. Sviderskyy1 , N. Kharchenko2 , T. Hovorun2 , , T. Berehovyj1, R. Milotskyi3 |
| Affiliations |
1National Technical University of Ukraine “I. Sikorsky Kyiv Polytechnic Institute”, 03056 Kyiv, Ukraine 2Sumy State University, 40007 Sumy, Ukraine 3Kanazawa University, 920-1192 Kanazawa, Japan |
| Е-mail | hovorun@pmtkm.sumdu.edu.ua |
| Issue | Volume 17, Year 2025, Number 2 |
| Dates | Received 17 February 2025; revised manuscript received 20 April 2025; published online 28 April 2025 |
| Citation | L. Melnyk, V. Sviderskyy, N. Kharchenko, и др., J. Nano- Electron. Phys. 17 No 2, 02032 (2025) |
| DOI | https://doi.org/10.21272/jnep.17(2).02032 |
| PACS Number(s) | 61.46. + w, 61.43.Gt, 73.63.Fg, 74.50. + r |
| Keywords | Polymer composites, Thermal conductivity (3) , Fly ash, Thermal insulation properties, Homogenization, Mechanical strength. |
| Annotation |
The paper presents the results of a study on the thermal insulation properties of polymer composites based on fly ash from thermal power plants. Aqueous dispersions of styrene-butadiene (Latex 2012) and acrylic (Policril 590) polymers were used as the matrix. A complex multifactorial dependence of the thermal conductivity of the composite materials on the type and properties of the ash, its content, the type and concentration of the polymer dispersion, density, porosity, and temperature was established. The decisive role of the pore structure in forming effective thermal insulation was demonstrated. It was found that a more developed specific surface area, higher wettability, and lower filler density contribute to the reduction of thermal conductivity. The lowest thermal conductivity was shown by composites containing fly ash with a filler concentration of 65 wt. % in combination with an acrylic matrix. The selected matrix exhibits a more consistent thermal conductivity profile within the studied temperature interval, indicating enhanced thermal stability. The results obtained allow us to determine the optimal conditions for the development of effective thermal insulation materials using industrial waste. |
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List of References |
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