Obradović, Vera

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  • Obradović, Vera (3)

Author's Bibliography

Impact properties of Kolon/PVB fabrics reinforced with rice-husk silica particles

Obradović, Vera; Vuksanović, Marija M.; Tomić, Nataša; Petrović, Miloš; Marinković, Aleksandar; Stojanović, Dušica; Radojević, Vesna; Jančić-Heinemann, Radmila; Uskoković, Petar

(2022)

TY  - JOUR
AU  - Obradović, Vera
AU  - Vuksanović, Marija M.
AU  - Tomić, Nataša
AU  - Petrović, Miloš
AU  - Marinković, Aleksandar
AU  - Stojanović, Dušica
AU  - Radojević, Vesna
AU  - Jančić-Heinemann, Radmila
AU  - Uskoković, Petar
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10337
AB  - This study presents the impact properties of the new form of hybrid thermoplastic composites. The Kolon fabrics were impregnated with the 10 wt% poly (vinyl butyral) (PVB)/ethanol solution with the addition of silica (SiO2) particles originating from rice husk or layered double hydroxide modified silica particles (FeAl-LDH@SiO2) as reinforcement. All the composites consisted of one layer of the impregnated fabric where the silica particles concentrations were 0.5 wt% and 1.0 wt% regarding PVB. The impact properties of the composite samples were analyzed by the controlled energy puncture impact tester. The structures of the composite samples were determined by the attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR) and field emission scanning electron microscopy (FE-SEM). The results showed that the Kolon/PVB/1 wt% FeAl-LDH@SiO2 sample yielded the maximum impact force.
T2  - Materials Letters
T1  - Impact properties of Kolon/PVB fabrics reinforced with rice-husk silica particles
VL  - 324
SP  - 132668
DO  - 10.1016/j.matlet.2022.132668
ER  - 
@article{
author = "Obradović, Vera and Vuksanović, Marija M. and Tomić, Nataša and Petrović, Miloš and Marinković, Aleksandar and Stojanović, Dušica and Radojević, Vesna and Jančić-Heinemann, Radmila and Uskoković, Petar",
year = "2022",
abstract = "This study presents the impact properties of the new form of hybrid thermoplastic composites. The Kolon fabrics were impregnated with the 10 wt% poly (vinyl butyral) (PVB)/ethanol solution with the addition of silica (SiO2) particles originating from rice husk or layered double hydroxide modified silica particles (FeAl-LDH@SiO2) as reinforcement. All the composites consisted of one layer of the impregnated fabric where the silica particles concentrations were 0.5 wt% and 1.0 wt% regarding PVB. The impact properties of the composite samples were analyzed by the controlled energy puncture impact tester. The structures of the composite samples were determined by the attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR) and field emission scanning electron microscopy (FE-SEM). The results showed that the Kolon/PVB/1 wt% FeAl-LDH@SiO2 sample yielded the maximum impact force.",
journal = "Materials Letters",
title = "Impact properties of Kolon/PVB fabrics reinforced with rice-husk silica particles",
volume = "324",
pages = "132668",
doi = "10.1016/j.matlet.2022.132668"
}
Obradović, V., Vuksanović, M. M., Tomić, N., Petrović, M., Marinković, A., Stojanović, D., Radojević, V., Jančić-Heinemann, R.,& Uskoković, P.. (2022). Impact properties of Kolon/PVB fabrics reinforced with rice-husk silica particles. in Materials Letters, 324, 132668.
https://doi.org/10.1016/j.matlet.2022.132668
Obradović V, Vuksanović MM, Tomić N, Petrović M, Marinković A, Stojanović D, Radojević V, Jančić-Heinemann R, Uskoković P. Impact properties of Kolon/PVB fabrics reinforced with rice-husk silica particles. in Materials Letters. 2022;324:132668.
doi:10.1016/j.matlet.2022.132668 .
Obradović, Vera, Vuksanović, Marija M., Tomić, Nataša, Petrović, Miloš, Marinković, Aleksandar, Stojanović, Dušica, Radojević, Vesna, Jančić-Heinemann, Radmila, Uskoković, Petar, "Impact properties of Kolon/PVB fabrics reinforced with rice-husk silica particles" in Materials Letters, 324 (2022):132668,
https://doi.org/10.1016/j.matlet.2022.132668 . .
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Improvement in cavitation resistance of poly (vinyl butyral) composite films with silica nanoparticles: A technical note

Obradović, Vera; Vuksanović, Marija M.; Tomić, Nataša; Stojanović, Dušica; Volkov-Husović, Tatjana; Uskoković, Petar

(2021)

TY  - JOUR
AU  - Obradović, Vera
AU  - Vuksanović, Marija M.
AU  - Tomić, Nataša
AU  - Stojanović, Dušica
AU  - Volkov-Husović, Tatjana
AU  - Uskoković, Petar
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13116
AB  - In this study poly (vinyl butyral)/silica (PVB/SiO2) composite films were subjected to the cavitation process. The experiments were carried out with a 10 wt.% PVB solution in ethanol. Silica nanoparticles were added into the solution in different concentration of 1, 3 and 5 wt.% SiO2 in regard to PVB. Composite films were cast from these solutions and subjected to ultrasonic cavitation. Optical images of their surfaces were analyzed before and after cavitation, by Image-Pro Plus software. The results revealed that the PVB film with 5 wt.% SiO2 nanoparticles demonstrated the greatest improvement in microhardness with the best cavitation resistance compared to other films.
T2  - Polymers & Polymer Composites
T1  - Improvement in cavitation resistance of poly (vinyl butyral) composite films with silica nanoparticles: A technical note
VL  - 29
IS  - 9_SUPPL
SP  - S1664
EP  - S1669
DO  - 10.1177/0967391120986505
ER  - 
@article{
author = "Obradović, Vera and Vuksanović, Marija M. and Tomić, Nataša and Stojanović, Dušica and Volkov-Husović, Tatjana and Uskoković, Petar",
year = "2021",
abstract = "In this study poly (vinyl butyral)/silica (PVB/SiO2) composite films were subjected to the cavitation process. The experiments were carried out with a 10 wt.% PVB solution in ethanol. Silica nanoparticles were added into the solution in different concentration of 1, 3 and 5 wt.% SiO2 in regard to PVB. Composite films were cast from these solutions and subjected to ultrasonic cavitation. Optical images of their surfaces were analyzed before and after cavitation, by Image-Pro Plus software. The results revealed that the PVB film with 5 wt.% SiO2 nanoparticles demonstrated the greatest improvement in microhardness with the best cavitation resistance compared to other films.",
journal = "Polymers & Polymer Composites",
title = "Improvement in cavitation resistance of poly (vinyl butyral) composite films with silica nanoparticles: A technical note",
volume = "29",
number = "9_SUPPL",
pages = "S1664-S1669",
doi = "10.1177/0967391120986505"
}
Obradović, V., Vuksanović, M. M., Tomić, N., Stojanović, D., Volkov-Husović, T.,& Uskoković, P.. (2021). Improvement in cavitation resistance of poly (vinyl butyral) composite films with silica nanoparticles: A technical note. in Polymers & Polymer Composites, 29(9_SUPPL), S1664-S1669.
https://doi.org/10.1177/0967391120986505
Obradović V, Vuksanović MM, Tomić N, Stojanović D, Volkov-Husović T, Uskoković P. Improvement in cavitation resistance of poly (vinyl butyral) composite films with silica nanoparticles: A technical note. in Polymers & Polymer Composites. 2021;29(9_SUPPL):S1664-S1669.
doi:10.1177/0967391120986505 .
Obradović, Vera, Vuksanović, Marija M., Tomić, Nataša, Stojanović, Dušica, Volkov-Husović, Tatjana, Uskoković, Petar, "Improvement in cavitation resistance of poly (vinyl butyral) composite films with silica nanoparticles: A technical note" in Polymers & Polymer Composites, 29, no. 9_SUPPL (2021):S1664-S1669,
https://doi.org/10.1177/0967391120986505 . .

Improvement of VIS and IR camouflage properties by impregnating cotton fabric with PVB/IF-WS2

Samolov, Aleksandra D.; Simić, Danica M.; Fidanovski, Bojana Z.; Obradović, Vera; Tomić, Ljubiša D.; Knežević, Dragan M.

(2021)

TY  - JOUR
AU  - Samolov, Aleksandra D.
AU  - Simić, Danica M.
AU  - Fidanovski, Bojana Z.
AU  - Obradović, Vera
AU  - Tomić, Ljubiša D.
AU  - Knežević, Dragan M.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11786
AB  - In order to examine the possibility to improve its camouflage properties standard cotton fabric with camouflage print was impregnated with poly(vinyl butyral), PVB and fullerene-like nanoparticles of tungsten disulfide, PVB/IF-WS2. FTIR analysis excluded any possible chemical interaction of IF-WS2 with PVB and the fabric. The camouflage behavior of the impregnated fabric has been examined firstly in the VIS part of the spectrum. Diffuse reflection, specular gloss and color coordinates were measured for three different shades (black, brown and dark green). Thermal imaging was applied to examine the camouflage abilities of this impregnation in IR part of the spectrum. The obtained results show that PVB/IF-WS2 impregnation system induced enhacement of the materials camouflage properties, i.e. that IF-WS2 have a positive effect on spectrophotometric characteristics of the fabric. (c) 2020 China Ordnance Society. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).
T2  - Defence Technology
T1  - Improvement of VIS and IR camouflage properties by impregnating cotton fabric with PVB/IF-WS2
VL  - 17
IS  - 6
SP  - 2050
EP  - 2056
DO  - 10.1016/j.dt.2020.10.008
ER  - 
@article{
author = "Samolov, Aleksandra D. and Simić, Danica M. and Fidanovski, Bojana Z. and Obradović, Vera and Tomić, Ljubiša D. and Knežević, Dragan M.",
year = "2021",
abstract = "In order to examine the possibility to improve its camouflage properties standard cotton fabric with camouflage print was impregnated with poly(vinyl butyral), PVB and fullerene-like nanoparticles of tungsten disulfide, PVB/IF-WS2. FTIR analysis excluded any possible chemical interaction of IF-WS2 with PVB and the fabric. The camouflage behavior of the impregnated fabric has been examined firstly in the VIS part of the spectrum. Diffuse reflection, specular gloss and color coordinates were measured for three different shades (black, brown and dark green). Thermal imaging was applied to examine the camouflage abilities of this impregnation in IR part of the spectrum. The obtained results show that PVB/IF-WS2 impregnation system induced enhacement of the materials camouflage properties, i.e. that IF-WS2 have a positive effect on spectrophotometric characteristics of the fabric. (c) 2020 China Ordnance Society. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).",
journal = "Defence Technology",
title = "Improvement of VIS and IR camouflage properties by impregnating cotton fabric with PVB/IF-WS2",
volume = "17",
number = "6",
pages = "2050-2056",
doi = "10.1016/j.dt.2020.10.008"
}
Samolov, A. D., Simić, D. M., Fidanovski, B. Z., Obradović, V., Tomić, L. D.,& Knežević, D. M.. (2021). Improvement of VIS and IR camouflage properties by impregnating cotton fabric with PVB/IF-WS2. in Defence Technology, 17(6), 2050-2056.
https://doi.org/10.1016/j.dt.2020.10.008
Samolov AD, Simić DM, Fidanovski BZ, Obradović V, Tomić LD, Knežević DM. Improvement of VIS and IR camouflage properties by impregnating cotton fabric with PVB/IF-WS2. in Defence Technology. 2021;17(6):2050-2056.
doi:10.1016/j.dt.2020.10.008 .
Samolov, Aleksandra D., Simić, Danica M., Fidanovski, Bojana Z., Obradović, Vera, Tomić, Ljubiša D., Knežević, Dragan M., "Improvement of VIS and IR camouflage properties by impregnating cotton fabric with PVB/IF-WS2" in Defence Technology, 17, no. 6 (2021):2050-2056,
https://doi.org/10.1016/j.dt.2020.10.008 . .
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