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The influence of thermodynamic parameters on alkaline activator of geopolymers and structure of geopolymers
(Macedonian Journal of Chemistry and Chemical Engineering, 2021)
Thermodynamic parameters (densities, viscosities, speed of sound, and refractive index) of four series of alkaline activators were determined over the temperature range from 15 to 60 °C for the process of geopolymerization. ...
Structure and properties of TEMPO-oxidized cotton fibers / Struktura i svojstva TEMPO-oksidisanih vlakana pamuka
(Association of the Chemical Engineers of Serbia, 2012)
In this paper, the influence of the catalytic oxidation using water soluble and stable nitroxyl radical 2,2',6,6'-tetramethylpiperidine-1-oxyl (TEMPO) on the structure and properties of cotton fibers was studied. In ...
Antimicrobial oxidized hemp fibers with incorporated silver particles / Antimikrobna tempo-oksidisana vlakna konoplje sa inkorporisanim česticama srebra
(Serbian Chemical Society, Belgrade, 2012)
In this study, antimicrobial silver-loaded hemp fibers were prepared by selective TEMPO-mediated oxidation, i.e., oxidation with sodium hypochlorite, catalytic amount of sodium bromide and the 2,2,6,6-tetramethylpipe-ridine-1-oxy ...
Nickel-based catalysts: Dependence of properties on nickel loading and modification with palladium
(Savez hemijskih inženjera, Beograd, 2016)
The aim of this study was comparative analysis of catalysts with 5 and 20 wt.% Ni loading, with and without Pd additive, and it included: determination of reduction degrees, investigation on microstructure by scanning ...
Synthesis of α-Al2O3 based foams with improved properties as catalyst carriers
(Institute of Metals and Technology, 2014)
This paper explores the possibility of synthesising catalyst supports with improved properties. Alumina foams were produced with the polymer replication technique. Representative high- and low-temperature sintering ceramics ...
Analysis of the tool plunge in friction stir welding comparison of aluminum alloys 2024 t3 and 2024 t351
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2016)
Temperature, plastic strain and heat generation during the plunge stage of the friction stir welding of high-strength aluminum alloys 2024 T3 and 2024 T351 are considered in this work. The plunging of the tool into the ...
Assessing the pharmacological potential of selected xanthene derivatives / Određivanje farmakološke aktivnosti derivata ksantena
(Serbian Chemical Society, 2023)
A convenient and efficient approach toward the synthesis of seven aromatically substituted xanthendiones 1‒7 and one structurally-related xanthenone 8 through condensation of dimedone and the appropriate aromatic aldehyde ...
In vitro biocompatibility assessment of Co-Cr-Mo dental cast alloy
(Srpsko hemijsko društvo, Beograd, 2015)
Metallic materials, such as Co-Cr-Mo alloys, are exposed to aggressive conditions in the oral cavity that represents an ideal environment for metallic ion release and biodegradation. The metallic ions released from dental ...
Influence of material velocity on heat generation during linear welding stage of friction stir welding
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2016)
The heat generated during friction stir welding process depends on plastic deformation of the material and friction between the tool and the material. In this work, heat generation is analysed with respect to the material ...
Comparative analysis of functionality of spray dried whey protein hydrolysates obtained by enzymatic and microbial hydrolysis
(Savez hemijskih inženjera, Beograd, 2018)
The aim of this study was to examine the bioactive potential of hydrolysate powders produced by enzymatic and microbial hydrolysis of whey proteins followed by spray drying, in order to reveal which one of these processes ...