TY  - JOUR
AU  - Stajčić, Ivana
AU  - Veljković, Filip
AU  - Petrović, Miloš
AU  - Veličković, Suzana
AU  - Radojević, Vesna
AU  - Vlahović, Branislav
AU  - Stajčić, Aleksandar
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6464
AB  - High performance polymers with bio-based modifiers are promising materials in terms of applications and environmental impact. In this work, raw acacia honey was used as a bio-modifier for epoxy resin, as a rich source of functional groups. The addition of honey resulted in the formation of highly stable structures that were observed in scanning electron microscopy images as separate phases at the fracture surface, which were involved in the toughening of the resin. Structural changes were investigated, revealing the formation of a new aldehyde carbonyl group. Thermal analysis confirmed the formation of products that were stable up to 600 °C, with a glass transition temperature of 228 °C. An energy-controlled impact test was performed to compare the absorbed impact energy of bio-modified epoxy containing different amounts of honey with unmodified epoxy resin. The results showed that bio-modified epoxy resin with 3 wt% of acacia honey could withstand several impacts with full recovery, while unmodified epoxy resin broke at first impact. The absorbed energy at first impact was 2.5 times higher for bio-modified epoxy resin than it was for unmodified epoxy resin. In this manner, by using simple preparation and a raw material that is abundant in nature, a novel epoxy with high thermal and impact resistance was obtained, opening a path for further research in this field.
PB  - MDPI
T2  - Polymers
T1  - Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey
IS  - 10
SP  - 2261
VL  - 15
DO  - 10.3390/polym15102261
ER  - 

@article{
author = "Stajčić, Ivana and Veljković, Filip and Petrović, Miloš and Veličković, Suzana and Radojević, Vesna and Vlahović, Branislav and Stajčić, Aleksandar",
year = "2023",
abstract = "High performance polymers with bio-based modifiers are promising materials in terms of applications and environmental impact. In this work, raw acacia honey was used as a bio-modifier for epoxy resin, as a rich source of functional groups. The addition of honey resulted in the formation of highly stable structures that were observed in scanning electron microscopy images as separate phases at the fracture surface, which were involved in the toughening of the resin. Structural changes were investigated, revealing the formation of a new aldehyde carbonyl group. Thermal analysis confirmed the formation of products that were stable up to 600 °C, with a glass transition temperature of 228 °C. An energy-controlled impact test was performed to compare the absorbed impact energy of bio-modified epoxy containing different amounts of honey with unmodified epoxy resin. The results showed that bio-modified epoxy resin with 3 wt% of acacia honey could withstand several impacts with full recovery, while unmodified epoxy resin broke at first impact. The absorbed energy at first impact was 2.5 times higher for bio-modified epoxy resin than it was for unmodified epoxy resin. In this manner, by using simple preparation and a raw material that is abundant in nature, a novel epoxy with high thermal and impact resistance was obtained, opening a path for further research in this field.",
publisher = "MDPI",
journal = "Polymers",
title = "Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey",
number = "10",
pages = "2261",
volume = "15",
doi = "10.3390/polym15102261"
}

Stajčić, I., Veljković, F., Petrović, M., Veličković, S., Radojević, V., Vlahović, B.,& Stajčić, A.. (2023). Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey. in Polymers
MDPI., 15(10), 2261.
https://doi.org/10.3390/polym15102261

Stajčić I, Veljković F, Petrović M, Veličković S, Radojević V, Vlahović B, Stajčić A. Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey. in Polymers. 2023;15(10):2261.
doi:10.3390/polym15102261 .

Stajčić, Ivana, Veljković, Filip, Petrović, Miloš, Veličković, Suzana, Radojević, Vesna, Vlahović, Branislav, Stajčić, Aleksandar, "Impact- and Thermal-Resistant Epoxy Resin Toughened with Acacia Honey" in Polymers, 15, no. 10 (2023):2261,
https://doi.org/10.3390/polym15102261 . .

TY  - CONF
AU  - Dimitrijević, Silvana
AU  - Veličković, Suzana
AU  - Veljković, Filip
AU  - Alagić, Slađana
AU  - Dimitrijević, Stevan
AU  - Ivanović, Aleksandra
AU  - Ivanović, Saša
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6645
AB  - This work is aimed to characterize the gold complexes using the electron spray ionization (ESI), and atmospheric solids analysis probe (ASAP), tandem quadrupole mass spectrometer (TQD). It is demonstrated here that the use of the ASAP is more suitable than the ESI for a rapid analysis of the gold coatings in the solid and liquid state. The mass spectra indicate that mercaptotriazole and glycine can coordinate with the gold ion and to build complexes such as [Au-2MT-Gly] and [Au-2MT-2Gly].
PB  - Bor : Mining and Metallurgy Institute
C3  - Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor
T1  - CHARACTERIZATION OF THE GOLD MERCAPTOTRIAZOLE COMPLEX USING THE TANDEM QUADRUPOLE MASS SPECTROMETRY (TQD)
EP  - 172
SP  - 169
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6645
ER  - 

@conference{
author = "Dimitrijević, Silvana and Veličković, Suzana and Veljković, Filip and Alagić, Slađana and Dimitrijević, Stevan and Ivanović, Aleksandra and Ivanović, Saša",
year = "2022",
abstract = "This work is aimed to characterize the gold complexes using the electron spray ionization (ESI), and atmospheric solids analysis probe (ASAP), tandem quadrupole mass spectrometer (TQD). It is demonstrated here that the use of the ASAP is more suitable than the ESI for a rapid analysis of the gold coatings in the solid and liquid state. The mass spectra indicate that mercaptotriazole and glycine can coordinate with the gold ion and to build complexes such as [Au-2MT-Gly] and [Au-2MT-2Gly].",
publisher = "Bor : Mining and Metallurgy Institute",
journal = "Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor",
title = "CHARACTERIZATION OF THE GOLD MERCAPTOTRIAZOLE COMPLEX USING THE TANDEM QUADRUPOLE MASS SPECTROMETRY (TQD)",
pages = "172-169",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6645"
}

Dimitrijević, S., Veličković, S., Veljković, F., Alagić, S., Dimitrijević, S., Ivanović, A.,& Ivanović, S.. (2022). CHARACTERIZATION OF THE GOLD MERCAPTOTRIAZOLE COMPLEX USING THE TANDEM QUADRUPOLE MASS SPECTROMETRY (TQD). in Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor
Bor : Mining and Metallurgy Institute., 169-172.
https://hdl.handle.net/21.15107/rcub_technorep_6645

Dimitrijević S, Veličković S, Veljković F, Alagić S, Dimitrijević S, Ivanović A, Ivanović S. CHARACTERIZATION OF THE GOLD MERCAPTOTRIAZOLE COMPLEX USING THE TANDEM QUADRUPOLE MASS SPECTROMETRY (TQD). in Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor. 2022;:169-172.
https://hdl.handle.net/21.15107/rcub_technorep_6645 .

Dimitrijević, Silvana, Veličković, Suzana, Veljković, Filip, Alagić, Slađana, Dimitrijević, Stevan, Ivanović, Aleksandra, Ivanović, Saša, "CHARACTERIZATION OF THE GOLD MERCAPTOTRIAZOLE COMPLEX USING THE TANDEM QUADRUPOLE MASS SPECTROMETRY (TQD)" in Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor (2022):169-172,
https://hdl.handle.net/21.15107/rcub_technorep_6645 .

TY  - CONF
AU  - Vurdelja, Borislava
AU  - Veljković, Filip
AU  - Rajčić, Boris
AU  - Dimitrijević, Silvana
AU  - Dimitrijević, Stevan
AU  - Kamberović, Željko J.
AU  - Veličković, Suzana
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6981
AB  - Precise, direct and fast methods for characterization the anodic films still have to be developed, since the conventional methods cannot be accelerated beyond the certain limits. The present work uses a laser desorption/ionization mass spectrometry (LDI MS) to characterize the chemical composition of anodic film on the Ag60Cu26Zn14 alloy. The positive mode mass spectra, measured from the propan-2-ol solution of corrosion film, shows the formation of three major signals originating from the Ag+, CuCl2CuCl(H2O)+ and Cu(OH)2(CuCl)3+ species. The other ions, such as Cu+, Cu(H2O)+, CuO(H2O)+, AgCl(H2O)+, Cu(ClO)2+, AgCuCl+, Ag2Cl(H2O)3+, have a much lower intensity. It has been noted that the ion species of zinc with chlorine or oxygen where not detected.
PB  - Bor : Mining and Metallurgy Institute
C3  - Proceedings / 50th International October Conference on Mining and Metallurgy - IOC 2018, 30th September - 3rd October 2018 Bor Lake, Serbia
T1  - CHARACTERIZATION OF THE ANODIC FILMS FORMED ON THE Ag60Cu26Zn14 ALLOY BY THE LDI MASS SPECTROMETRY
EP  - 264
SP  - 261
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6981
ER  - 

@conference{
author = "Vurdelja, Borislava and Veljković, Filip and Rajčić, Boris and Dimitrijević, Silvana and Dimitrijević, Stevan and Kamberović, Željko J. and Veličković, Suzana",
year = "2018",
abstract = "Precise, direct and fast methods for characterization the anodic films still have to be developed, since the conventional methods cannot be accelerated beyond the certain limits. The present work uses a laser desorption/ionization mass spectrometry (LDI MS) to characterize the chemical composition of anodic film on the Ag60Cu26Zn14 alloy. The positive mode mass spectra, measured from the propan-2-ol solution of corrosion film, shows the formation of three major signals originating from the Ag+, CuCl2CuCl(H2O)+ and Cu(OH)2(CuCl)3+ species. The other ions, such as Cu+, Cu(H2O)+, CuO(H2O)+, AgCl(H2O)+, Cu(ClO)2+, AgCuCl+, Ag2Cl(H2O)3+, have a much lower intensity. It has been noted that the ion species of zinc with chlorine or oxygen where not detected.",
publisher = "Bor : Mining and Metallurgy Institute",
journal = "Proceedings / 50th International October Conference on Mining and Metallurgy - IOC 2018, 30th September - 3rd October 2018 Bor Lake, Serbia",
title = "CHARACTERIZATION OF THE ANODIC FILMS FORMED ON THE Ag60Cu26Zn14 ALLOY BY THE LDI MASS SPECTROMETRY",
pages = "264-261",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6981"
}

Vurdelja, B., Veljković, F., Rajčić, B., Dimitrijević, S., Dimitrijević, S., Kamberović, Ž. J.,& Veličković, S.. (2018). CHARACTERIZATION OF THE ANODIC FILMS FORMED ON THE Ag60Cu26Zn14 ALLOY BY THE LDI MASS SPECTROMETRY. in Proceedings / 50th International October Conference on Mining and Metallurgy - IOC 2018, 30th September - 3rd October 2018 Bor Lake, Serbia
Bor : Mining and Metallurgy Institute., 261-264.
https://hdl.handle.net/21.15107/rcub_technorep_6981

Vurdelja B, Veljković F, Rajčić B, Dimitrijević S, Dimitrijević S, Kamberović ŽJ, Veličković S. CHARACTERIZATION OF THE ANODIC FILMS FORMED ON THE Ag60Cu26Zn14 ALLOY BY THE LDI MASS SPECTROMETRY. in Proceedings / 50th International October Conference on Mining and Metallurgy - IOC 2018, 30th September - 3rd October 2018 Bor Lake, Serbia. 2018;:261-264.
https://hdl.handle.net/21.15107/rcub_technorep_6981 .

Vurdelja, Borislava, Veljković, Filip, Rajčić, Boris, Dimitrijević, Silvana, Dimitrijević, Stevan, Kamberović, Željko J., Veličković, Suzana, "CHARACTERIZATION OF THE ANODIC FILMS FORMED ON THE Ag60Cu26Zn14 ALLOY BY THE LDI MASS SPECTROMETRY" in Proceedings / 50th International October Conference on Mining and Metallurgy - IOC 2018, 30th September - 3rd October 2018 Bor Lake, Serbia (2018):261-264,
https://hdl.handle.net/21.15107/rcub_technorep_6981 .