Title: Al₂O₃ nanoparticles synthesis, and a study of its influence on the fire behaviour of nanocomposite materials based on unsaturated polyester resin

Authors: Anmar A. Harhoosh; E.V. Yurtov

Addresses: Department of Nanomaterials and Nanotechnology, D. Mendeleev University of Chemical Technology of Russia, Miusskaya Square, 9, Moscow, 125047, Russia ' Department of Nanomaterials and Nanotechnology, D. Mendeleev University of Chemical Technology of Russia, Miusskaya Square, 9, Moscow, 125047, Russia

Abstract: The effect of sodium carbonate on the size formation of Al₂O₃ nanoparticles was successfully studied, as it was with an increase in the pH of the initial solution from 3.5 to 8, the particle size decrease from 97 ± 10 nm to 52 ± 10 nm. The alumina powder was analysed by using scanning electron microscopy SEM, energy dispersive spectrometer EDS, and Fourier transform infrared FTIR spectroscopy. Al₂O₃ nanoparticles with an average size of 74 ± 10 nm are used as flame retardant additives. The Al₂O₃ nanoparticles were found to be effective flame retardants additives in unsaturated polyester resin. The nanocomposite materials based on unsaturated polyester resin with adding of 5 wt% of alumina nanoparticles found to be optimum results, in which the burning rate decreased by 79.9% and the coke number (CN) value of the carbonated residue increased by 20% compared with the pure resin.

Keywords: nanoparticles; nanocomposite materials; flame retardants; unsaturated polyester resins; polymeric materials; metal oxides.

DOI: 10.1504/IJNT.2024.136506

International Journal of Nanotechnology, 2024 Vol.21 No.1/2, pp.38 - 48

Published online: 05 Feb 2024 *

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