TY  - CONF
AU  - Bajić, Danica M.
AU  - Fidanovski, Bojana
AU  - Radisavljević, Igor
AU  - Bogosavljević, Marica
AU  - Totovski, Ljubica
AU  - Stojanović, Dušica B.
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6933
AB  - As one of transition metal dichalogenides, tungsten disulphide (WS2) is well known for its solid
lubricating behavior, but besides this feature, it exhibits extraordinary thermal stability and mechanical
resistance. The outstanding mechanical strength of WS2 is most pronounced when it comes in form of
multi-layer hollow nanoparticles and nanotubes: inorganic fullerene-like nanoparticles and inorganic
nanotubes, denoted as IF-WS2 and INT-WS2, respectively. These structures have extraordinary shock resistance
properties, pressure and heat resistance, that can be exploited for a variety of applications. They have been
studied as reinforcing fillers of various polymers, but they might be also added as reinforcement of matrix in
more complex composites, like CFRPs. Our research aimed to examine their reinforcing effect on laminated
composites based on aramid fabric and poly(vinyl butyral), PVB, intended for demanding applications: in
personal protection equipment, ballistic protection, sports equipment, automotive, nautical and aircraft
engineering. WS2 nanostructures have been incorporated in PVB by temporary dissolving in ethanol, by
ultrasonication and intensive mechanical mixing. After impregnation of aramid fabrics ethanol would
evaporate, and layers of aramid with thermoplastic binder PVB would be integrated by hot pressing. SEM
analysis confirms the uniform distribution of WS2 nanostructures in the prepared composite material. DSC
analysis reveals the effect of WS2 addition on thermal resistance of the new material, while PVB/aramid
mechanical resistance was examined using DMA, impact test and tensile test. IF- WS2 has imported higher
thermal resistance and ductility improvement, while INT-WS2 has significantly improved tensile and impact
strength of the composite.
C3  - Abstract Book / 3 rd Edition of Materials Science and Nanoscience Webinar, V-Mat2021, September 17-18, 2021
T1  - WS2 nanostructures as thermo-mechanical reinforcement of composite materials for advanced applications
SP  - 40
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6933
ER  - 

@conference{
author = "Bajić, Danica M. and Fidanovski, Bojana and Radisavljević, Igor and Bogosavljević, Marica and Totovski, Ljubica and Stojanović, Dušica B.",
year = "2021",
abstract = "As one of transition metal dichalogenides, tungsten disulphide (WS2) is well known for its solid
lubricating behavior, but besides this feature, it exhibits extraordinary thermal stability and mechanical
resistance. The outstanding mechanical strength of WS2 is most pronounced when it comes in form of
multi-layer hollow nanoparticles and nanotubes: inorganic fullerene-like nanoparticles and inorganic
nanotubes, denoted as IF-WS2 and INT-WS2, respectively. These structures have extraordinary shock resistance
properties, pressure and heat resistance, that can be exploited for a variety of applications. They have been
studied as reinforcing fillers of various polymers, but they might be also added as reinforcement of matrix in
more complex composites, like CFRPs. Our research aimed to examine their reinforcing effect on laminated
composites based on aramid fabric and poly(vinyl butyral), PVB, intended for demanding applications: in
personal protection equipment, ballistic protection, sports equipment, automotive, nautical and aircraft
engineering. WS2 nanostructures have been incorporated in PVB by temporary dissolving in ethanol, by
ultrasonication and intensive mechanical mixing. After impregnation of aramid fabrics ethanol would
evaporate, and layers of aramid with thermoplastic binder PVB would be integrated by hot pressing. SEM
analysis confirms the uniform distribution of WS2 nanostructures in the prepared composite material. DSC
analysis reveals the effect of WS2 addition on thermal resistance of the new material, while PVB/aramid
mechanical resistance was examined using DMA, impact test and tensile test. IF- WS2 has imported higher
thermal resistance and ductility improvement, while INT-WS2 has significantly improved tensile and impact
strength of the composite.",
journal = "Abstract Book / 3 rd Edition of Materials Science and Nanoscience Webinar, V-Mat2021, September 17-18, 2021",
title = "WS2 nanostructures as thermo-mechanical reinforcement of composite materials for advanced applications",
pages = "40",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6933"
}

Bajić, D. M., Fidanovski, B., Radisavljević, I., Bogosavljević, M., Totovski, L.,& Stojanović, D. B.. (2021). WS2 nanostructures as thermo-mechanical reinforcement of composite materials for advanced applications. in Abstract Book / 3 rd Edition of Materials Science and Nanoscience Webinar, V-Mat2021, September 17-18, 2021, 40.
https://hdl.handle.net/21.15107/rcub_technorep_6933

Bajić DM, Fidanovski B, Radisavljević I, Bogosavljević M, Totovski L, Stojanović DB. WS2 nanostructures as thermo-mechanical reinforcement of composite materials for advanced applications. in Abstract Book / 3 rd Edition of Materials Science and Nanoscience Webinar, V-Mat2021, September 17-18, 2021. 2021;:40.
https://hdl.handle.net/21.15107/rcub_technorep_6933 .

Bajić, Danica M., Fidanovski, Bojana, Radisavljević, Igor, Bogosavljević, Marica, Totovski, Ljubica, Stojanović, Dušica B., "WS2 nanostructures as thermo-mechanical reinforcement of composite materials for advanced applications" in Abstract Book / 3 rd Edition of Materials Science and Nanoscience Webinar, V-Mat2021, September 17-18, 2021 (2021):40,
https://hdl.handle.net/21.15107/rcub_technorep_6933 .

TY  - JOUR
AU  - Bobić, Nikola
AU  - Totovski, Ljubica
AU  - Jelisavac, Ljiljana
AU  - Nikolić, Jasmina
AU  - Bošnjakov, Milica R.
AU  - Marković, Srđan
AU  - Drmanić, Saša
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3507
AB  - The examination results of the gelatinization of nitrocellulose gunpowders, stabilized by different stabilizers are described in this study. The microstructure of gunpowder samples of different chemical compositions is analyzed by the scanning electron microscopy (SEM). Apart from the three-dimensional picture of morphology and the effect of the molecular dispersion of stabilizers into the nitrocellulose matrix, the in­formation on chemical composition of the surface of gunpowder grain was obtained by the use of energy-dispersive X-rays spectrometry on SEM (SEM/EDX). The aim of the research was the comparative analysis of three different gunpowder samples, and the estimation of the effect on the gelatinization of nitrocellulose by different stabilizers was performed including their separate influences on the chemical stability of gunpowder. The comparative analysis is based on the degree of homogenous dispersion of each stabilizer in the matrix, which has the significant positive influence on the stability of gunpowder.
AB  - U radu su prikazani rezultati ispitivanja želatinizacije nitroceluloznih baruta, stabilisanih različitim tipovima stabilizatora. Pomoću skenirajuće elektronske mikroskopije (Scanning Electron Microscopy, SEM) ispitivana je mikrostruktura uzoraka baruta različitog hemijskog sastava. Pored trodimenzionalne slike topografije i učinka molekularne disperzije stabilizatora u matricu nitroceluloze, pomoću metode energetske diperzije X-zraka (Energy-Dispersive X-Rays Spectroscopy - EDX) dobijena je informacija o kvantitativnom i kvalitativnom hemijskom sastavu ispitivanog dela površine barutnog zrna. Na osnovu komparativne analize, izvršena je ocena efekta želatinizacije nitroceluloze različitim tipovima stabilizatora i njihov pojedinačni uticaj na hemijsku stabilnost baruta.
PB  - Univerzitet u Nišu - Tehnološki fakultet, Leskovac
T2  - Advanced Technologies
T1  - The gelatinization of nitrocellulose by primary stabilizers
T1  - Želatinizacija nitroceluloze primarnim stabilizatorima
EP  - 37
IS  - 2
SP  - 31
VL  - 6
DO  - 10.5937/savteh1702031B
ER  - 

@article{
author = "Bobić, Nikola and Totovski, Ljubica and Jelisavac, Ljiljana and Nikolić, Jasmina and Bošnjakov, Milica R. and Marković, Srđan and Drmanić, Saša",
year = "2017",
abstract = "The examination results of the gelatinization of nitrocellulose gunpowders, stabilized by different stabilizers are described in this study. The microstructure of gunpowder samples of different chemical compositions is analyzed by the scanning electron microscopy (SEM). Apart from the three-dimensional picture of morphology and the effect of the molecular dispersion of stabilizers into the nitrocellulose matrix, the in­formation on chemical composition of the surface of gunpowder grain was obtained by the use of energy-dispersive X-rays spectrometry on SEM (SEM/EDX). The aim of the research was the comparative analysis of three different gunpowder samples, and the estimation of the effect on the gelatinization of nitrocellulose by different stabilizers was performed including their separate influences on the chemical stability of gunpowder. The comparative analysis is based on the degree of homogenous dispersion of each stabilizer in the matrix, which has the significant positive influence on the stability of gunpowder., U radu su prikazani rezultati ispitivanja želatinizacije nitroceluloznih baruta, stabilisanih različitim tipovima stabilizatora. Pomoću skenirajuće elektronske mikroskopije (Scanning Electron Microscopy, SEM) ispitivana je mikrostruktura uzoraka baruta različitog hemijskog sastava. Pored trodimenzionalne slike topografije i učinka molekularne disperzije stabilizatora u matricu nitroceluloze, pomoću metode energetske diperzije X-zraka (Energy-Dispersive X-Rays Spectroscopy - EDX) dobijena je informacija o kvantitativnom i kvalitativnom hemijskom sastavu ispitivanog dela površine barutnog zrna. Na osnovu komparativne analize, izvršena je ocena efekta želatinizacije nitroceluloze različitim tipovima stabilizatora i njihov pojedinačni uticaj na hemijsku stabilnost baruta.",
publisher = "Univerzitet u Nišu - Tehnološki fakultet, Leskovac",
journal = "Advanced Technologies",
title = "The gelatinization of nitrocellulose by primary stabilizers, Želatinizacija nitroceluloze primarnim stabilizatorima",
pages = "37-31",
number = "2",
volume = "6",
doi = "10.5937/savteh1702031B"
}

Bobić, N., Totovski, L., Jelisavac, L., Nikolić, J., Bošnjakov, M. R., Marković, S.,& Drmanić, S.. (2017). The gelatinization of nitrocellulose by primary stabilizers. in Advanced Technologies
Univerzitet u Nišu - Tehnološki fakultet, Leskovac., 6(2), 31-37.
https://doi.org/10.5937/savteh1702031B

Bobić N, Totovski L, Jelisavac L, Nikolić J, Bošnjakov MR, Marković S, Drmanić S. The gelatinization of nitrocellulose by primary stabilizers. in Advanced Technologies. 2017;6(2):31-37.
doi:10.5937/savteh1702031B .

Bobić, Nikola, Totovski, Ljubica, Jelisavac, Ljiljana, Nikolić, Jasmina, Bošnjakov, Milica R., Marković, Srđan, Drmanić, Saša, "The gelatinization of nitrocellulose by primary stabilizers" in Advanced Technologies, 6, no. 2 (2017):31-37,
https://doi.org/10.5937/savteh1702031B . .

TY  - JOUR
AU  - Simić, Danica
AU  - Stojanović, Dušica
AU  - Brzić, Sasa J.
AU  - Totovski, Ljubica
AU  - Uskoković, Petar
AU  - Aleksić, Radoslav
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3565
AB  - Combination of phenolic resin with poly (vinyl butyral), PVB, is often used as impregnation of aramid fabrics in prepregs for the ballistic protection products. In this study an effect of inorganic fullerene-like tungsten disulfide nanoparticles (IF-WS2) in aramid/phenolic resin/PVB composite for improving its viscoelastic and mechanical properties is examined. The effect of IF-WS2 on mechanical properties improvement was first proved by nanoindentation on thin film samples PVB/IF-WS2. The quality of aramid fabrics impregnation with PVB/phenolic resin/IF-WS2, and the nanoparticles dispersion were analyzed by scanning electron microscope with energy dispersive spectrometer. Viscoelastic properties of the composites were examined by dynamic mechanical thermal analysis, observing the storage and loss modulus, mechanical loss factor and glass transition temperature versus temperature and frequency. Time-temperature superposition principle was applied for the construction of master curves. IF-WS2 causes increase of glass transition temperature and improvement in mechanical properties of examined composites.
PB  - Elsevier Sci Ltd, Oxford
T2  - Composites Part B-Engineering
T1  - Aramid hybrid composite laminates reinforced with inorganic fullerene-like tungsten disulfide nanoparticles
EP  - 18
SP  - 10
VL  - 123
DO  - 10.1016/j.compositesb.2017.05.002
ER  - 

@article{
author = "Simić, Danica and Stojanović, Dušica and Brzić, Sasa J. and Totovski, Ljubica and Uskoković, Petar and Aleksić, Radoslav",
year = "2017",
abstract = "Combination of phenolic resin with poly (vinyl butyral), PVB, is often used as impregnation of aramid fabrics in prepregs for the ballistic protection products. In this study an effect of inorganic fullerene-like tungsten disulfide nanoparticles (IF-WS2) in aramid/phenolic resin/PVB composite for improving its viscoelastic and mechanical properties is examined. The effect of IF-WS2 on mechanical properties improvement was first proved by nanoindentation on thin film samples PVB/IF-WS2. The quality of aramid fabrics impregnation with PVB/phenolic resin/IF-WS2, and the nanoparticles dispersion were analyzed by scanning electron microscope with energy dispersive spectrometer. Viscoelastic properties of the composites were examined by dynamic mechanical thermal analysis, observing the storage and loss modulus, mechanical loss factor and glass transition temperature versus temperature and frequency. Time-temperature superposition principle was applied for the construction of master curves. IF-WS2 causes increase of glass transition temperature and improvement in mechanical properties of examined composites.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Composites Part B-Engineering",
title = "Aramid hybrid composite laminates reinforced with inorganic fullerene-like tungsten disulfide nanoparticles",
pages = "18-10",
volume = "123",
doi = "10.1016/j.compositesb.2017.05.002"
}

Simić, D., Stojanović, D., Brzić, S. J., Totovski, L., Uskoković, P.,& Aleksić, R.. (2017). Aramid hybrid composite laminates reinforced with inorganic fullerene-like tungsten disulfide nanoparticles. in Composites Part B-Engineering
Elsevier Sci Ltd, Oxford., 123, 10-18.
https://doi.org/10.1016/j.compositesb.2017.05.002

Simić D, Stojanović D, Brzić SJ, Totovski L, Uskoković P, Aleksić R. Aramid hybrid composite laminates reinforced with inorganic fullerene-like tungsten disulfide nanoparticles. in Composites Part B-Engineering. 2017;123:10-18.
doi:10.1016/j.compositesb.2017.05.002 .

Simić, Danica, Stojanović, Dušica, Brzić, Sasa J., Totovski, Ljubica, Uskoković, Petar, Aleksić, Radoslav, "Aramid hybrid composite laminates reinforced with inorganic fullerene-like tungsten disulfide nanoparticles" in Composites Part B-Engineering, 123 (2017):10-18,
https://doi.org/10.1016/j.compositesb.2017.05.002 . .

TY  - JOUR
AU  - Simić, Danica
AU  - Stojanović, Dušica
AU  - Dimić, Mirjana
AU  - Totovski, Ljubica
AU  - Brzić, Saša
AU  - Uskoković, Petar
AU  - Aleksić, Radoslav
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3196
AB  - A possibility of using inorganic fullerene-like tungsten disulfide, IF-WS2, nanoparticles as a filler in poly (vinyl butyral), PVB, for improving its thermal and rheological properties is examined. PVB is a thermoplastic polymer with excellent properties, widely used: in ballistic protection, for protection of safety glass, in metal primers and coatings, temporary binders. Two different molecular weights of PVB were previously examined in this research: Mowital B60H and B75H. Both grades of PVB were dissolved in different solvents: ethanol and 2-propanol. Thin films were prepared by solvent casting technique. The glass transition temperature (Tg) of the tested samples was determined using differential scanning calorimetry (DSC), at three different heating rates (5°C/min, 10°C/min and 20°C/min). After choosing a solvent and PVB grade, IF-WS2 nanoparticles were added to PVB solutions and dispersed by ultrasonic irradiation. Compatibility, i.e. interaction of IF-WS2 with the dissolved PVB was examined by microcalorimetry method. The nanoparticles dispersion and deagglomeration in matrix of PVB was analyzed by scanning electron microscope (SEM). The effect of IF-WS2 on rheological properties of the chosen samples has been examined using Dynamic Mechanical Thermal Analysis (DMTA), observing storage modulus, loss modulus and the loss factor as functions of temperature for the tested composites.
AB  - Ispitana je mogućnost upotrebe fulerenskih nanočestica volfram disulfida, IF-WS2 kao punioca poli (vinil butirala), PVB, radi poboljšanja termalnih i reoloških svojstava. PVB je termoplastični polimer sa odličnim karakteristikama, široke primene: u balističkoj zaštiti, za zaštitu sigurnosnih stakala, u metalnim prajmerima i premazima, itd. U ovom istraživanju najpre su ispitane dve različite molekulske mase PVB: Mowital B60H i B75H. Rastvoreni su u različitim rastvaračima: etanol i 2- propanol. Uzorci u vidu tankih filmova su pripremljeni i temperatura ostakljivanja je određena korišćenjem diferencijalne skenirajuće kalorimetrije na tri različite brzine zagrevanja (5°C/min, 10°C/min i 20°C/min). Nakon izbora optimalnog rastvarača i molekulske mase PVB, IF-WS2 nanočestice su dodate u rastvor PVB i ultrazvučno dispergovane. Kompatibilnost, odnosno interakcija IF-WS2 sa rastvorenim PVB je ispitana metodom mikrokalorimetrije. Deaglomeracija nanočestica i disperzija u matrici PVB su analizirane pomoću skenirajućeg elektronskog mikroskopa. Efekat dodavanja IF-WS2 na reološka svojstva odabranih uzoraka je ispitana korišćenjem dinamičko-mehaničko-termičke analize (DMTA), posmatrajući modul sačuvane energije, modul gubitaka i mehanički faktor gubitaka kao funkcije temperature za ispitne kompozite.
PB  - Military Technical Institute, Belgrade
T2  - Scientific Technical Review
T1  - Preliminary analysis of the possibility of preparing PVB/IF-WS2 composites. Effect of nanoparticles addition on thermal and rheological behavior of PVB
T1  - Predvaritel'nyj analiz vozmožnosti podgotovki kompozitov PVB / IF- WS2 i ëffekty vlijanija dobavki nanočastic na termičeskoe i reologičeskoe povedenija PVB / (francuski) Analyse préliminaire de la possibilité de préparation des composites PVB/IF-WS2 et effet de l'addition des nano particules sur le comportement thermique et rhéologique de PVB
T1  - Preliminarna analiza mogućnosti izrade kompozita PVB/IF-WS2 i efekat dodataka nanočestica na termičko i reološko ponašanje PVB
EP  - 21
IS  - 4
SP  - 15
VL  - 66
DO  - 10.5937/STR1604015S
ER  - 

@article{
author = "Simić, Danica and Stojanović, Dušica and Dimić, Mirjana and Totovski, Ljubica and Brzić, Saša and Uskoković, Petar and Aleksić, Radoslav",
year = "2016",
abstract = "A possibility of using inorganic fullerene-like tungsten disulfide, IF-WS2, nanoparticles as a filler in poly (vinyl butyral), PVB, for improving its thermal and rheological properties is examined. PVB is a thermoplastic polymer with excellent properties, widely used: in ballistic protection, for protection of safety glass, in metal primers and coatings, temporary binders. Two different molecular weights of PVB were previously examined in this research: Mowital B60H and B75H. Both grades of PVB were dissolved in different solvents: ethanol and 2-propanol. Thin films were prepared by solvent casting technique. The glass transition temperature (Tg) of the tested samples was determined using differential scanning calorimetry (DSC), at three different heating rates (5°C/min, 10°C/min and 20°C/min). After choosing a solvent and PVB grade, IF-WS2 nanoparticles were added to PVB solutions and dispersed by ultrasonic irradiation. Compatibility, i.e. interaction of IF-WS2 with the dissolved PVB was examined by microcalorimetry method. The nanoparticles dispersion and deagglomeration in matrix of PVB was analyzed by scanning electron microscope (SEM). The effect of IF-WS2 on rheological properties of the chosen samples has been examined using Dynamic Mechanical Thermal Analysis (DMTA), observing storage modulus, loss modulus and the loss factor as functions of temperature for the tested composites., Ispitana je mogućnost upotrebe fulerenskih nanočestica volfram disulfida, IF-WS2 kao punioca poli (vinil butirala), PVB, radi poboljšanja termalnih i reoloških svojstava. PVB je termoplastični polimer sa odličnim karakteristikama, široke primene: u balističkoj zaštiti, za zaštitu sigurnosnih stakala, u metalnim prajmerima i premazima, itd. U ovom istraživanju najpre su ispitane dve različite molekulske mase PVB: Mowital B60H i B75H. Rastvoreni su u različitim rastvaračima: etanol i 2- propanol. Uzorci u vidu tankih filmova su pripremljeni i temperatura ostakljivanja je određena korišćenjem diferencijalne skenirajuće kalorimetrije na tri različite brzine zagrevanja (5°C/min, 10°C/min i 20°C/min). Nakon izbora optimalnog rastvarača i molekulske mase PVB, IF-WS2 nanočestice su dodate u rastvor PVB i ultrazvučno dispergovane. Kompatibilnost, odnosno interakcija IF-WS2 sa rastvorenim PVB je ispitana metodom mikrokalorimetrije. Deaglomeracija nanočestica i disperzija u matrici PVB su analizirane pomoću skenirajućeg elektronskog mikroskopa. Efekat dodavanja IF-WS2 na reološka svojstva odabranih uzoraka je ispitana korišćenjem dinamičko-mehaničko-termičke analize (DMTA), posmatrajući modul sačuvane energije, modul gubitaka i mehanički faktor gubitaka kao funkcije temperature za ispitne kompozite.",
publisher = "Military Technical Institute, Belgrade",
journal = "Scientific Technical Review",
title = "Preliminary analysis of the possibility of preparing PVB/IF-WS2 composites. Effect of nanoparticles addition on thermal and rheological behavior of PVB, Predvaritel'nyj analiz vozmožnosti podgotovki kompozitov PVB / IF- WS2 i ëffekty vlijanija dobavki nanočastic na termičeskoe i reologičeskoe povedenija PVB / (francuski) Analyse préliminaire de la possibilité de préparation des composites PVB/IF-WS2 et effet de l'addition des nano particules sur le comportement thermique et rhéologique de PVB, Preliminarna analiza mogućnosti izrade kompozita PVB/IF-WS2 i efekat dodataka nanočestica na termičko i reološko ponašanje PVB",
pages = "21-15",
number = "4",
volume = "66",
doi = "10.5937/STR1604015S"
}

Simić, D., Stojanović, D., Dimić, M., Totovski, L., Brzić, S., Uskoković, P.,& Aleksić, R.. (2016). Preliminary analysis of the possibility of preparing PVB/IF-WS2 composites. Effect of nanoparticles addition on thermal and rheological behavior of PVB. in Scientific Technical Review
Military Technical Institute, Belgrade., 66(4), 15-21.
https://doi.org/10.5937/STR1604015S

Simić D, Stojanović D, Dimić M, Totovski L, Brzić S, Uskoković P, Aleksić R. Preliminary analysis of the possibility of preparing PVB/IF-WS2 composites. Effect of nanoparticles addition on thermal and rheological behavior of PVB. in Scientific Technical Review. 2016;66(4):15-21.
doi:10.5937/STR1604015S .

Simić, Danica, Stojanović, Dušica, Dimić, Mirjana, Totovski, Ljubica, Brzić, Saša, Uskoković, Petar, Aleksić, Radoslav, "Preliminary analysis of the possibility of preparing PVB/IF-WS2 composites. Effect of nanoparticles addition on thermal and rheological behavior of PVB" in Scientific Technical Review, 66, no. 4 (2016):15-21,
https://doi.org/10.5937/STR1604015S . .

TY  - JOUR
AU  - Simić, Danica
AU  - Stojanović, Dušica
AU  - Kojović, Aleksandar
AU  - Dimić, Mirjana
AU  - Totovski, Ljubica
AU  - Uskoković, Petar
AU  - Aleksić, Radoslav
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3301
AB  - The subject of this research is to explore the possibility of preparation of nanocomposite material of improved thermo-mechanical and tribological properties, using inorganic fullerene-like tungsten disulfide nanostructures (IF-WS2) as reinforcement in poly(vinyl butyral) (PVB). This paper also reports investigation of the effects of using different solvents in preparation of PVB/IF-WS2 nanocomposite on the thermo-mechanical behavior of the resulting material. PVB was dissolved in ethanol, isopropanol, n-butanol and ethyl acetate. IF-WS2 nanoparticles were added to these PVB solutions and dispersed by different deagglomeration techniques. Samples were dried and thin films were obtained. Their microstructure and the quality of IF-WS2 dispersion and deagglomeration in PVE matrix was analyzed by scanning electron microscope (SEM). The reinforcing effect of IF-WS2 is examined by determining hardness, reduced modulus of elasticity and coefficient of friction, by nanoindentation and nanoscratch test, in terms of the different solvents applied in preparation of the samples, mode of stirring and different contents of IF-WS2. The glass transition temperature (T-g) was determined for the prepared samples using differential scanning calorimetry (DSC) and dynamic mechanical thermal analysis (DMA). Storage modulus and mechanical loss factor were observed in a defined temperature range using DMA.
PB  - Elsevier Science Sa, Lausanne
T2  - Materials Chemistry and Physics
T1  - Inorganic fullerene-like IF-WS2/PVB nanocomposites of improved thermo-mechanical and tribological properties
EP  - 344
SP  - 335
VL  - 184
DO  - 10.1016/j.matchemphys.2016.09.060
ER  - 

@article{
author = "Simić, Danica and Stojanović, Dušica and Kojović, Aleksandar and Dimić, Mirjana and Totovski, Ljubica and Uskoković, Petar and Aleksić, Radoslav",
year = "2016",
abstract = "The subject of this research is to explore the possibility of preparation of nanocomposite material of improved thermo-mechanical and tribological properties, using inorganic fullerene-like tungsten disulfide nanostructures (IF-WS2) as reinforcement in poly(vinyl butyral) (PVB). This paper also reports investigation of the effects of using different solvents in preparation of PVB/IF-WS2 nanocomposite on the thermo-mechanical behavior of the resulting material. PVB was dissolved in ethanol, isopropanol, n-butanol and ethyl acetate. IF-WS2 nanoparticles were added to these PVB solutions and dispersed by different deagglomeration techniques. Samples were dried and thin films were obtained. Their microstructure and the quality of IF-WS2 dispersion and deagglomeration in PVE matrix was analyzed by scanning electron microscope (SEM). The reinforcing effect of IF-WS2 is examined by determining hardness, reduced modulus of elasticity and coefficient of friction, by nanoindentation and nanoscratch test, in terms of the different solvents applied in preparation of the samples, mode of stirring and different contents of IF-WS2. The glass transition temperature (T-g) was determined for the prepared samples using differential scanning calorimetry (DSC) and dynamic mechanical thermal analysis (DMA). Storage modulus and mechanical loss factor were observed in a defined temperature range using DMA.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Chemistry and Physics",
title = "Inorganic fullerene-like IF-WS2/PVB nanocomposites of improved thermo-mechanical and tribological properties",
pages = "344-335",
volume = "184",
doi = "10.1016/j.matchemphys.2016.09.060"
}

Simić, D., Stojanović, D., Kojović, A., Dimić, M., Totovski, L., Uskoković, P.,& Aleksić, R.. (2016). Inorganic fullerene-like IF-WS2/PVB nanocomposites of improved thermo-mechanical and tribological properties. in Materials Chemistry and Physics
Elsevier Science Sa, Lausanne., 184, 335-344.
https://doi.org/10.1016/j.matchemphys.2016.09.060

Simić D, Stojanović D, Kojović A, Dimić M, Totovski L, Uskoković P, Aleksić R. Inorganic fullerene-like IF-WS2/PVB nanocomposites of improved thermo-mechanical and tribological properties. in Materials Chemistry and Physics. 2016;184:335-344.
doi:10.1016/j.matchemphys.2016.09.060 .

Simić, Danica, Stojanović, Dušica, Kojović, Aleksandar, Dimić, Mirjana, Totovski, Ljubica, Uskoković, Petar, Aleksić, Radoslav, "Inorganic fullerene-like IF-WS2/PVB nanocomposites of improved thermo-mechanical and tribological properties" in Materials Chemistry and Physics, 184 (2016):335-344,
https://doi.org/10.1016/j.matchemphys.2016.09.060 . .