Kostić, Marija

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  • Kostić, Marija (1)
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Hydrolytic, thermal and radiation stability of modified urea-formaldehyde composites: Influence of montmorillonite particle size

Samaržija-Jovanović, Suzana; Jovanović, Vojislav; Jovanović, Tijana; Kostić, Marija; Petković, Branka; Marković, Gordana; Marinović-Cincović, Milena

(2022)

TY  - JOUR
AU  - Samaržija-Jovanović, Suzana
AU  - Jovanović, Vojislav
AU  - Jovanović, Tijana
AU  - Kostić, Marija
AU  - Petković, Branka
AU  - Marković, Gordana
AU  - Marinović-Cincović, Milena
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10193
AB  - Urea-formaldehyde (UF) composites with a formaldehyde/urea (FA/U) ratio = 0.8 and different particle sizes of montmorillonite (MMT), namely UF/KSF and UF/K10 were synthesized. The hydrolytic stability of modified UF composites was determined by measuring the content of the liberated formaldehyde of modified UF composites after acid hydrolysis. The synthesized modified UF composites were irradiated (50 kGy) and the effect of γ–irradiation was evaluated on the basis of these thermal behaviors. The thermal behavior was studied by non-isothermal thermo-gravimetric analysis (TG), differential thermo-gravimetry (DTG), and differential thermal analysis (DTA) supported by data from Fourier transform infrared spectroscopy (FTIR). The minimum percentages of free (0.4%) and liberated (1.2%) formaldehyde were obtained in the UF/KSF composite. The modified UF/KSF composite shows better radiation resistance than the modified UF/K10 composite. The shift of temperature values for the selected mass losses (T5%) to higher temperatures indicates an increase in the thermal stability of the UF/K10 composite after γ–irradiation. γ–irradiation causes a decrease in the absorption intensity of bands in the FTIR spectrum of a modified UF/KSF composite and an increase in the absorption intensity of bands in the FTIR spectrum of a modified UF/K10 composite. © 2022 Elsevier Ltd
T2  - International Journal of Adhesion and Adhesives
T1  - Hydrolytic, thermal and radiation stability of modified urea-formaldehyde composites: Influence of montmorillonite particle size
VL  - 115
SP  - 103131
DO  - 10.1016/j.ijadhadh.2022.103131
ER  - 
@article{
author = "Samaržija-Jovanović, Suzana and Jovanović, Vojislav and Jovanović, Tijana and Kostić, Marija and Petković, Branka and Marković, Gordana and Marinović-Cincović, Milena",
year = "2022",
abstract = "Urea-formaldehyde (UF) composites with a formaldehyde/urea (FA/U) ratio = 0.8 and different particle sizes of montmorillonite (MMT), namely UF/KSF and UF/K10 were synthesized. The hydrolytic stability of modified UF composites was determined by measuring the content of the liberated formaldehyde of modified UF composites after acid hydrolysis. The synthesized modified UF composites were irradiated (50 kGy) and the effect of γ–irradiation was evaluated on the basis of these thermal behaviors. The thermal behavior was studied by non-isothermal thermo-gravimetric analysis (TG), differential thermo-gravimetry (DTG), and differential thermal analysis (DTA) supported by data from Fourier transform infrared spectroscopy (FTIR). The minimum percentages of free (0.4%) and liberated (1.2%) formaldehyde were obtained in the UF/KSF composite. The modified UF/KSF composite shows better radiation resistance than the modified UF/K10 composite. The shift of temperature values for the selected mass losses (T5%) to higher temperatures indicates an increase in the thermal stability of the UF/K10 composite after γ–irradiation. γ–irradiation causes a decrease in the absorption intensity of bands in the FTIR spectrum of a modified UF/KSF composite and an increase in the absorption intensity of bands in the FTIR spectrum of a modified UF/K10 composite. © 2022 Elsevier Ltd",
journal = "International Journal of Adhesion and Adhesives",
title = "Hydrolytic, thermal and radiation stability of modified urea-formaldehyde composites: Influence of montmorillonite particle size",
volume = "115",
pages = "103131",
doi = "10.1016/j.ijadhadh.2022.103131"
}
Samaržija-Jovanović, S., Jovanović, V., Jovanović, T., Kostić, M., Petković, B., Marković, G.,& Marinović-Cincović, M.. (2022). Hydrolytic, thermal and radiation stability of modified urea-formaldehyde composites: Influence of montmorillonite particle size. in International Journal of Adhesion and Adhesives, 115, 103131.
https://doi.org/10.1016/j.ijadhadh.2022.103131
Samaržija-Jovanović S, Jovanović V, Jovanović T, Kostić M, Petković B, Marković G, Marinović-Cincović M. Hydrolytic, thermal and radiation stability of modified urea-formaldehyde composites: Influence of montmorillonite particle size. in International Journal of Adhesion and Adhesives. 2022;115:103131.
doi:10.1016/j.ijadhadh.2022.103131 .
Samaržija-Jovanović, Suzana, Jovanović, Vojislav, Jovanović, Tijana, Kostić, Marija, Petković, Branka, Marković, Gordana, Marinović-Cincović, Milena, "Hydrolytic, thermal and radiation stability of modified urea-formaldehyde composites: Influence of montmorillonite particle size" in International Journal of Adhesion and Adhesives, 115 (2022):103131,
https://doi.org/10.1016/j.ijadhadh.2022.103131 . .
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