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Functionalization of PLA Aerogels with TiO2 Nanoparticles / Funkcionalizacija PLA aerogelova pomoću TiO2 nanočestica
(Savez inženjera i tehničara Srbije, 2021)
This study was aimed to prepare material with high porosity and photocatalytic activity by immobilization of TiO2 nanoparticles (NPs) onto poly(lactic acid) (PLA) aerogels. PLA aerogels were prepared in three steps: (1) ...
Impregnation of cellulose acetate films with carvacrol using supercritical carbon ioxide / Impregnacija filmova acetata celuloze karvakrolom pomoću natkritičnog ugljenik(IV)-oksida
(Savez inženjera i tehničara Srbije, Beograd, 2018)
Cellulose acetate films were impregnated with carvacrol using supercritical carbon dioxide. The supercritical impregnation process, conducted in a static regime at pressure of 21 MPa and temperature of 50°C, was optimized ...
Examination of the adhesion of polymer composite films based on Bis-GMA/TEGDMA on different metal substrates / Ispitivanje adhezije polimernih kompozitnih filmova na bazi Bis-GMA/TEGDMA na različitim metalnim podlogama
(Savez inženjera i tehničara Srbije, Beograd, 2018)
The subject of this study is the quantitative adhesion of a UV-curing composite film based on Bis-GMA (Bisphenol A glycidylmethacrylate) / TEGDMA (triethylene glycol dimethacrylate) as a matrix and particles doped with ...
Microvickers hardness determination of unsaturated polyester resins reinforced with alumina based reinforcement / Ispitivanje mikrotvrdoće nezasićenih poliestarskih smola sa ojačanjima na bazi aluminijum oksida
(Savez inženjera i tehničara Srbije, Beograd, 2018)
Commercial alumina wiskers (Al2O3 w) and synthesized alumina particles via sol-gel technique (Al2O3 m) were used as reinforcement in unsaturated polyester resins (UPR). Composite materials with the addition of 0.1 wt. %, ...
Influence of whey proteins addition on mechanical stability of biopolymer beads with immobilized probiotics / Uticaj dodatka proteina surutke na mehaničku stabilnost biopolimernih nosača sa imobilisanim probioticima
(Savez inženjera i tehničara Srbije, Beograd, 2015)
Biopolymer carriers are widely used for immobilization of the bioactive compounds and different type of the cells. The aim of this study was to analyze influence of whey proteins addition on mechanical strength of Ca-alginate ...
Quality, sources and balancing of iron and steel scrap / Kvalitet, izvori i bilansiranje otpadaka gvožđa i čelika
(Savez inženjera i tehničara Srbije, Beograd, 2015)
Besides iron ore, the main raw material of iron and steel production is steel scrap. This paper presents the quality and sources of creation the iron and steel scrap and estimation of their creation in the future. The ...
Leaching of chalcopyrite concentrate by hydrogen peroxide in sulphuric acid solution / Luženje halkopiritnog koncentrata rastvorom sumporne kiseline i vodonik-peroksida
(Savez inženjera i tehničara Srbije, Beograd, 2019)
Due to complex mineralogy and/or low content of base metals, some ores and mineral concentrates are not suitable for pyrometallurgical treatment. Therefore, those ores and concentrates have to be treated by application of ...