Browsing by Author "Luyt, A.S."
Now showing items 21-40 of 61
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Effect of plasma treatment on accelerated pla degradation
Antunes, A.; Luyt, A.S.; Kasak, P.; Aljarod, O.; Hassan, M.K.; Popelka, A.... more authors ... less authors ( BME-PT and GTE , 2021 , Article)Poly(lactic acid) (PLA) has been found to be important in various applications, such as in the medical, pharma-ceutical, and packaging industries. However, the long-term associated degradation process of PLA is a limiting ... -
Effect of poly(ε-caprolactone) and titanium (IV) dioxide content on the UV and hydrolytic degradation of poly(lactic acid)/poly(ε-caprolactone) blends
Luyt, A. S.; Antunes, A.; Popelka, A.; Mahmoud, A.; Hassan, M. K.; Kasak, P.... more authors ... less authors ( John Wiley and Sons Inc , 2021 , Article)The effect of accelerated weathering degradation on the properties of poly(lactic acid) (PLA)/poly(ε-caprolactone) (PCL) blends and PLA/PCL/titanium (IV) dioxide (TiO2) nanocomposites are presented in this paper. The results ... -
Effect of preparation method on the properties of poly(methyl methacrylate)/mesoporous silica composites
Sibeko, M. A.; Saladino, M. L.; Armetta, F.; Spinella, A.; Luyt, A. S. ( Springer Nature , 2019 , Article)The preparation method of a polymer composite and the filler loading are amongst the factors that influence the properties of the final composites. This article studies the effect of these factors on the thermal stability ... -
Effect of surfactant and radiation treatment on the morphology and properties of PP/EG composites
Sefadi, J.S.; Luyt, A.S.; Pionteck, J.; Gohs, U. ( Springer , 2015 , Article)The effects of surfactant and electron beam (EB) radiation treatment on the morphology and properties of polypropylene (PP)/expanded graphite (EG) composites were investigated. Surfactant treatment and sonication of EG ... -
Effects of rutile-TiO2 nanoparticles on accelerated weathering degradation of poly(Lactic Acid)
Antunes, A.; Popelka, A.; Aljarod, O.; Hassan, M. K.; Luyt, A.S. ( MDPI AG , 2020 , Article)The effect of accelerated weathering on poly(lactic acid) (PLA) and a PLA nanocomposite with rutile titanium (IV) dioxide (rutile-TiO2) was investigated. The accelerated weathering test applied consecutive steps of ultraviolet ... -
Electrospun alginate nanofibres as potential bio-sorption agent of heavy metals in water treatment
Mokhena, T.C.; Jacobs, N.V.; Luyt, A.S. ( Budapest University of Technology , 2017 , Article)This paper reports on the potential of electrospun alginate nanofibre membranes to be used for the bio-sorption of heavy metals from aqueous solutions. Poly(ethylene oxide) (PEO) and its blends were electrospun at an ... -
Electrospun alginate nanofibres impregnated with silver nanoparticles: Preparation, morphology and antibacterial properties
Mokhena, T.C.; Luyt, A.S. ( Elsevier , 2017 , Article)Abstract Silver nanoparticles are amongst the most valuable nanoparticles with interesting properties, such as a non-toxic nature and high antibacterial efficiency, making them applicable for tissue scaffold, protective ... -
Electrospun PVDF graphene oxide composite fibre mats with tunable physical properties.
Issa, A.A.; Al-Maadeed, M.A.A.S.; Mrlik, M.; Luyt, A.S. ( Springer Verlag , 2016 , Article)This article is aimed at a basic physical characterization of electrospun PVDF/graphene oxide (GO) composite non-woven fibre mats. The morphological characterization of the prepared fabrics was performed via SEM investigations. ... -
Generation of photo charge in poly(ethyleneimine)-TiO2-anthocyanin modified papers conditioned at different humidities
Škipina B.; Luyt A.S.; Csóka L.; Djoković V.; Dudić D. ( Elsevier Ltd , 2018 , Article)The article describes the influence of humidity on the surface photodielectric properties of papers prepared from poly(ethyleneimine)-TiO2 nanoparticles-anthocyanin modified cellulose fibres. The anthocyanins were extracted ... -
Halogen-free flame-retardant compounds. Thermal decomposition and flammability behavior for alternative polyethylene grades
Luyt A.S.; Malik S.S.; Gasmi S.A.; Porfyris A.; Andronopoulou A.; Korres D.; Vouyiouka S.; Grosshauser M.; Pfaendner R.; Brüll R.; Papaspyrides C.... more authors ... less authors ( MDPI AG , 2019 , Article)The effect of six halogen-free flame retardant (FR) formulations was investigated on the thermal stability of two low-density polyethylenes (LDPE) and one linear low-density polyethylene (LLDPE), by means of thermogravimetric ... -
Influence of accelerated weathering on the physical and structural properties of poly(Lactic-acid)/ poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (pla/phbv) blends
Antunes, A.; Luyt, A. S.; Popelka, A.; Mahmoud, A.; Aljarod, O.; Hassan, M. K.; Kasak, P.... more authors ... less authors ( BME-PT and GTE , 2021 , Article)The paper aims to study the poly(lactic acid) (PLA) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) blend properties after their degradation under 2000 h of accelerated weathering conditions following the ASTM D4329 ... -
Influence of blending and blend morphology on the thermal properties and crystallization behaviour of PLA and PCL in PLA/PCL blends
Luyt, A.S.; Gasmi, S. ( Springer , 2016 , Article)In this paper, we reported on the influence of PCL on the cold crystallization behaviour of PLA in different PLA/PCL blends, and on the influence of blending with PLA on the PCL crystallization behaviour and kinetics. The ... -
The influence of paraffin wax addition on the isothermal crystallization of LLDPE
Gumede, T.P.; Luyt, A.S.; Perez-Camargo, R.A.; Muller, A.J. ( Wiley , 2016 , Article)The influence of paraffin wax addition on the isothermal crystallization kinetics of linear low density polyethylene (LLDPE) was studied in a temperature range where the wax was always in the molten state and could be ... -
Influence of the presence of medium-soft paraffin wax on the morphology and properties of iPP/silver nanocomposites
Molaba, M.P.; Dudic, D.; Luyt, A.S. ( Budapest University of Technology , 2015 , Article)The aim of this study was to investigate the presence of wax, different Ag nanoparticle contents, and different cooling rates from the melt, on the morphology, thermal and electrical conductivity, and dynamic mechanical ... -
Influence of TiO2 nanoparticles on the crystallization behaviour and tensile properties of PLA/TiO2, PCL/TiO2 and PLA/PCL/TiO2 nanocomposites.
Luyt, A.S.; Gasmi, S. ( Springer Verlag , 2018 , Article)This paper investigated the influence of TiO2 nanoparticles on the morphologies, as well as crystallization behaviour and kinetics, of neat PLA and PCL, and of these polymers in different PLA/PCL blends. We used transmission ... -
Investigation of the physico-mechanical properties of electrospun PVDF/cellulose nanofibers.
Issa, A.A.; Al-Maadeed, M.; Luyt, A.S.; Mrlik, M.; Hassan, M.K. ( Wiley , 2016 , Article)The electro-activity and mechanical properties of PVDF depends mainly on the b-phase content and degree of crystallinity. In this study, cellulose fibers were used to improve these characteristics. This could be achieved ... -
Ionic diffusion in iPP: DC electrical conductivity
Skipina, B.; Petronijevic, I.M.; Luyt, A. S.; Dojcinovic, B.P.; Duvenhage, M.M.; Swart, H. C.; Suljovrujic, E.; Dudic, D.... more authors ... less authors ( Elsevier B.V. , 2020 , Article)This study provides a new insight into the relationships between absorption and adsorption processes that occur during the treatment of iPP in aqueous solutions of metal-chloride salts, as well as the impact of these ... -
Isothermal crystallization kinetics and morphology of double crystalline PCL/PBS blends mixed with a polycarbonate/MWCNTs masterbatch
Gumede T.P.; Luyt A.S.; Tercjak A.; Muller A.J. ( MDPI AG , 2019 , Article)In this work, the 70/30 and 30/70 w/w polycaprolactone (PCL)/polybutylene succinate (PBS) blends and their corresponding PCL/PBS/(polycarbonate (PC)/multiwalled carbon nanotubes (MWCNTs) masterbatch) nanocomposites were ... -
Kinetics of alkoxysilanes and organoalkoxysilanes polymerization: A review
Issa A.A.; Luyt A.S. ( MDPI AG , 2019 , Article Review)Scientists from various different fields use organo-trialkoxysilanes and tetraalkoxysilanes in a number of applications. The silica-based materials are sometimes synthesized without a good understanding of the underlying ... -
Kinetics of alkoxysilanes hydrolysis: An empirical approach
Issa A.A.; El-Azazy M.; Luyt A.S. ( Nature Research , 2019 , Article)Alkoxysilanes and organoalkoxysilanes are primary materials in several industries, e.g. coating, anti-corrosion treatment, fabrication of stationary phase for chromatography, and coupling agents. The hydrolytic polycondensation ...