TY  - JOUR
AU  - Grujić, Aleksandar
AU  - Ćosović, Vladan
AU  - Stajić-Trošić, Jasna
AU  - Ćosović, Aleksandar
AU  - Stijepović, Mirko
AU  - Putić, Lana S.
AU  - Žák, Tomáš
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3914
AB  - In this study, electrospinning combined with sol-gel technique is applied in order to produce magnetic nickel ferrite (Ni-ferrite) nanofibers. The prepared Ni-ferrite gel was mixed with poly(vinylpyrrolidone) (PVP) solution which was used as a spinning aid to enable spinnability of the mixture. Structural and morphological characteristics of the asspun ferrite gel/PVP composite web structure and calcinated Ni-ferrite nanofibers were analyzed using scanning electron microscopy (SEM). Phase composition analysis was carried out by Fourier-transform infrared (FT-IR) spectroscopy, X-Ray diffraction analysis (XRD) and Fe-57 Mossbauer spectroscopy (MS). The obtained results suggest that the pure nanocrystalline NiFe2O4 dense mat to the almost coral-like structure of fibers with diameters ranging from hundreds of nanometers to few micrometers was obtained. The results of MS analysis revealed the existence of a crystallite size distribution within the material as well as the existence of a superparamagnetic fraction with very small crystallite sizes ( lt 13nm). Magnetic behavior of the obtained material at elevated temperatures was also scrutinized using thermomagnetic measurements (TM) up to 800 degrees C.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metallurgical & Materials Engineering
T1  - Synthesis of nife2o4 nanofibers by joint sol-gel and electrospinning technique
EP  - 180
IS  - 3
SP  - 173
VL  - 24
DO  - 10.30544/387
ER  - 

@article{
author = "Grujić, Aleksandar and Ćosović, Vladan and Stajić-Trošić, Jasna and Ćosović, Aleksandar and Stijepović, Mirko and Putić, Lana S. and Žák, Tomáš",
year = "2018",
abstract = "In this study, electrospinning combined with sol-gel technique is applied in order to produce magnetic nickel ferrite (Ni-ferrite) nanofibers. The prepared Ni-ferrite gel was mixed with poly(vinylpyrrolidone) (PVP) solution which was used as a spinning aid to enable spinnability of the mixture. Structural and morphological characteristics of the asspun ferrite gel/PVP composite web structure and calcinated Ni-ferrite nanofibers were analyzed using scanning electron microscopy (SEM). Phase composition analysis was carried out by Fourier-transform infrared (FT-IR) spectroscopy, X-Ray diffraction analysis (XRD) and Fe-57 Mossbauer spectroscopy (MS). The obtained results suggest that the pure nanocrystalline NiFe2O4 dense mat to the almost coral-like structure of fibers with diameters ranging from hundreds of nanometers to few micrometers was obtained. The results of MS analysis revealed the existence of a crystallite size distribution within the material as well as the existence of a superparamagnetic fraction with very small crystallite sizes ( lt 13nm). Magnetic behavior of the obtained material at elevated temperatures was also scrutinized using thermomagnetic measurements (TM) up to 800 degrees C.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metallurgical & Materials Engineering",
title = "Synthesis of nife2o4 nanofibers by joint sol-gel and electrospinning technique",
pages = "180-173",
number = "3",
volume = "24",
doi = "10.30544/387"
}

Grujić, A., Ćosović, V., Stajić-Trošić, J., Ćosović, A., Stijepović, M., Putić, L. S.,& Žák, T.. (2018). Synthesis of nife2o4 nanofibers by joint sol-gel and electrospinning technique. in Metallurgical & Materials Engineering
Savez inženjera metalurgije Srbije, Beograd., 24(3), 173-180.
https://doi.org/10.30544/387

Grujić A, Ćosović V, Stajić-Trošić J, Ćosović A, Stijepović M, Putić LS, Žák T. Synthesis of nife2o4 nanofibers by joint sol-gel and electrospinning technique. in Metallurgical & Materials Engineering. 2018;24(3):173-180.
doi:10.30544/387 .

Grujić, Aleksandar, Ćosović, Vladan, Stajić-Trošić, Jasna, Ćosović, Aleksandar, Stijepović, Mirko, Putić, Lana S., Žák, Tomáš, "Synthesis of nife2o4 nanofibers by joint sol-gel and electrospinning technique" in Metallurgical & Materials Engineering, 24, no. 3 (2018):173-180,
https://doi.org/10.30544/387 . .

TY  - JOUR
AU  - Novaković, Milada S.
AU  - Putić, Lana S.
AU  - Bizjak, Matejka
AU  - Stanković, Snežana
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2899
AB  - Moisture management is a complicated process which is known to be influenced by a variety of fabric characteristics such as fibre nature (hydrophilic or hydrophobic), porosity and thickness. There are different aspects of the moisture management properties of textile materials since water transport in textile materials can be in the form of liquid and vapour. The ability of textile materials to transfer water vapour allows the human body to keep thermal balance due to evaporation. With stronger physical activity of a person when the body produces a large amount of heat, the skin perspiration increases (in order to regulate the body temperature) and liquid sweat should be taken from the skin, otherwise it will worsen the sense of comfort. The aim of this research was to investigate the factors influencing moisture management properties of plain knitted fabrics at the three scale levels, i.e., microscopic (fibre type), mesoscopic (yarn geometry) and macroscopic (fabric porosity) levels. Plain knitted fabrics were produced from the two-assembled hemp, cotton and viscose yarns under controlled conditions so as to be comparable in basic construction characteristics, but varying in yarns geometry. Evaporative resistance test reflecting vapour transport and water distribution test reflecting liquid transport in the knitted fabrics were conducted. To determine the statistical importance of the results, analysis of variance (ANOVA) was applied. As a consequence of the geometry and deformation behaviour of the fibres used and spinning techniques applied, the yarns differed in both packing density and surface geometry, thus determining the pore distribution. Due to loose structure of the cotton yarn, the cotton knitted fabric was characterised by the lowest free open surface (macroporosity) exhibiting the lowest both water vapour and liquid permeability. Although having the highest macroporosity, the water vapour and liquid transport capability of the hemp knitted fabric was lower than that of the viscose knit. The best moisture management properties of the viscose knitted fabric were resulted from viscose affinity for water absorption and increased surface area of the viscose yarn. The results obtained proved that variations in any of the hierarchical structure levels can modify moisture transport ability of textile fabrics. Therefore, the moisture management properties of textile materials can be guided in a desired direction by the appropriate selection of fibres and careful design of yarn structure.
AB  - Cilj ovog rada je bio karakterizacija glatkih pletenina u pogledu sposobnosti upravljanja vlagom (propuštanja vodene pare i znoja) uzimajući u obzir faktore na mikroskopskom (vlakna), mezoskopskom (pređa) i makroskopskom (pletenina) nivou. U tu svrhu su, polazeći od pređa izrađenih od prirodnih i regenerisanih celuloznih vlakana, u kontrolisanim uslovima proizvedene glatke DL pletenine koje su podvrgnute ispitivanju propustljivosti vodene pare i tečnosti. Dobijeni rezultati ukazali su na kompleksan uticaj hijerarhijske strukture tekstilnog materijala na njegovu sposobnost upravljanja tečnostima. Pokazalo se da pored distribucije pora u pleteninama, koja je u okviru eksperimentalnog materijala bila uslovljena deformacionim svojstvima vlakana i primenjenim tehnikama predenja, propustljivost vodene pare može biti modifikovana geometrijom površine pređe, dok morfologija vlakana može da modifikuje propustljivost tečnosti.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Moisture management properties of plain knitted fabrics made of natural and regenerated cellulose fibres
T1  - Sposobnost upravljanja vlagom glatkih pletenina izrađenih od prirodnih i regenerisanih celuloznih vlakana
EP  - 200
IS  - 2
SP  - 193
VL  - 69
DO  - 10.2298/HEMIND140201034N
ER  - 

@article{
author = "Novaković, Milada S. and Putić, Lana S. and Bizjak, Matejka and Stanković, Snežana",
year = "2015",
abstract = "Moisture management is a complicated process which is known to be influenced by a variety of fabric characteristics such as fibre nature (hydrophilic or hydrophobic), porosity and thickness. There are different aspects of the moisture management properties of textile materials since water transport in textile materials can be in the form of liquid and vapour. The ability of textile materials to transfer water vapour allows the human body to keep thermal balance due to evaporation. With stronger physical activity of a person when the body produces a large amount of heat, the skin perspiration increases (in order to regulate the body temperature) and liquid sweat should be taken from the skin, otherwise it will worsen the sense of comfort. The aim of this research was to investigate the factors influencing moisture management properties of plain knitted fabrics at the three scale levels, i.e., microscopic (fibre type), mesoscopic (yarn geometry) and macroscopic (fabric porosity) levels. Plain knitted fabrics were produced from the two-assembled hemp, cotton and viscose yarns under controlled conditions so as to be comparable in basic construction characteristics, but varying in yarns geometry. Evaporative resistance test reflecting vapour transport and water distribution test reflecting liquid transport in the knitted fabrics were conducted. To determine the statistical importance of the results, analysis of variance (ANOVA) was applied. As a consequence of the geometry and deformation behaviour of the fibres used and spinning techniques applied, the yarns differed in both packing density and surface geometry, thus determining the pore distribution. Due to loose structure of the cotton yarn, the cotton knitted fabric was characterised by the lowest free open surface (macroporosity) exhibiting the lowest both water vapour and liquid permeability. Although having the highest macroporosity, the water vapour and liquid transport capability of the hemp knitted fabric was lower than that of the viscose knit. The best moisture management properties of the viscose knitted fabric were resulted from viscose affinity for water absorption and increased surface area of the viscose yarn. The results obtained proved that variations in any of the hierarchical structure levels can modify moisture transport ability of textile fabrics. Therefore, the moisture management properties of textile materials can be guided in a desired direction by the appropriate selection of fibres and careful design of yarn structure., Cilj ovog rada je bio karakterizacija glatkih pletenina u pogledu sposobnosti upravljanja vlagom (propuštanja vodene pare i znoja) uzimajući u obzir faktore na mikroskopskom (vlakna), mezoskopskom (pređa) i makroskopskom (pletenina) nivou. U tu svrhu su, polazeći od pređa izrađenih od prirodnih i regenerisanih celuloznih vlakana, u kontrolisanim uslovima proizvedene glatke DL pletenine koje su podvrgnute ispitivanju propustljivosti vodene pare i tečnosti. Dobijeni rezultati ukazali su na kompleksan uticaj hijerarhijske strukture tekstilnog materijala na njegovu sposobnost upravljanja tečnostima. Pokazalo se da pored distribucije pora u pleteninama, koja je u okviru eksperimentalnog materijala bila uslovljena deformacionim svojstvima vlakana i primenjenim tehnikama predenja, propustljivost vodene pare može biti modifikovana geometrijom površine pređe, dok morfologija vlakana može da modifikuje propustljivost tečnosti.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Moisture management properties of plain knitted fabrics made of natural and regenerated cellulose fibres, Sposobnost upravljanja vlagom glatkih pletenina izrađenih od prirodnih i regenerisanih celuloznih vlakana",
pages = "200-193",
number = "2",
volume = "69",
doi = "10.2298/HEMIND140201034N"
}

Novaković, M. S., Putić, L. S., Bizjak, M.,& Stanković, S.. (2015). Moisture management properties of plain knitted fabrics made of natural and regenerated cellulose fibres. in Hemijska industrija
Association of Chemical Engineers of Serbia., 69(2), 193-200.
https://doi.org/10.2298/HEMIND140201034N

Novaković MS, Putić LS, Bizjak M, Stanković S. Moisture management properties of plain knitted fabrics made of natural and regenerated cellulose fibres. in Hemijska industrija. 2015;69(2):193-200.
doi:10.2298/HEMIND140201034N .

Novaković, Milada S., Putić, Lana S., Bizjak, Matejka, Stanković, Snežana, "Moisture management properties of plain knitted fabrics made of natural and regenerated cellulose fibres" in Hemijska industrija, 69, no. 2 (2015):193-200,
https://doi.org/10.2298/HEMIND140201034N . .