Browsing by Author "Popelka, A."
Now showing items 1-20 of 46
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Accelerated weathering effects on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and PHBV/TiO2 nanocomposites
Antunes, Ana; Popelka, Anton; Aljarod, Omar; Hassan, Mohammad K.; Kasak, Peter; Luyt, Adriaan S.... more authors ... less authors ( MDPI AG , 2020 , Article)The effect of accelerated weathering on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and PHBV-based nanocomposites with rutile titanium (IV) dioxide (PHBV/TiO2) was investigated. The accelerated weathering test ... -
Adhesive properties of polyester treated by cold plasma in oxygen and nitrogen atmospheres
Novak, I.; Popelka, A.; Luyt, A.S.; Chehimi, M.M.; Spirkova, M.; Janigova, I.; Kleinova, A.; Stopka, P.; Vanko, V.; Chodak, I.; Valentin, M.; Slouf, M.... more authors ... less authors (2013 , Article)Polyester foil was treated by the surface diffuse barrier discharge (SDBD) plasma at atmospheric pressure in oxygen and/or in nitrogen containing a small amount of oxygen to improve its surface and adhesive properties. ... -
Antibacterial treatment of LDPE with halogen derivatives via cold plasma
Popelka, A.; Novak, I.; Lehocky, M.; Bilek, F.; Kleinova, A.; Mozeti?, M.; Spirkova, M.; Chodak, I.... more authors ... less authors ( BME-PT and GTE , 2015 , Article)The factor limiting the application of low-density polyethylene (LDPE) in healthcare is its high susceptibility to bacterial growth. For this reason, we here investigated antibacterial treatments of LDPE foils using ... -
Antimicrobial modification of PLA scaffolds with ascorbic and fumaric acids via plasma treatment
Popelka, A.; Abdulkareem, A.; Mahmoud, A.A.; Nassr, M.G.; Al-Ruweidi, M.K.A.A.; Mohamoud, K.J.; Hussein, M.K.; Lehocky, M.; Vesela, D.; Humpolicek, P.; Kasak, P.... more authors ... less authors ( Elsevier B.V. , 2020 , Article)An optimal medical scaffold should be biocompatible and biodegradable and should have adequate mechanical properties and scaffold architecture porosity, a precise three-dimensional shape, and a reasonable manufacturing ... -
Chemically synthesized carbon nanorods with dual polarized emission
Xiong Y.; Zhang X.; Richter A.F.; Li Y.; Döring A.; Kasák P.; Popelka A.; Schneider J.; Kershaw S.V.; Yoo S.J.; Kim J.-G.; Zhang W.; Zheng W.; Ushakova E.V.; Feldmann J.; Rogach A.L.... more authors ... less authors ( American Chemical Society , 2019 , Article)We realized the synthesis of carbon nanorods—monodisperse colloidal particles with a length of 50 nm and a width of 20 nm—which can be considered an addition to the family of light-emitting carbon-based nanostructures. ... -
Dry sliding tribological properties of a hard anodized aa6082 aluminum alloy
Santecchia, E.; Cabibbo, M.; Hamouda, A.M.S.; Musharavati, F.; Popelka, A.; Spigarelli, S.... more authors ... less authors ( MDPI AG , 2020 , Article)The applications of aluminum and its alloys are still limited by low hardness and low wear resistance properties. Surface modifications, such anodizing and plasma electrolytic oxidation, represent a feasible way to overcome ... -
Eco-friendly foam biocomposites based on cellulose extracted from date palm leaves and low-density polyethylene
Maria H.J.; Luyt A.S.; Popelka A.; Nzihou A.; Egorov V.V.; Krupa I.; Al-Ali Al-Maadeed M.A.S.; Thomas S.... more authors ... less authors ( Web Portal IOP , 2020 , Article)The design of composite materials using environmentally compatible materials and adopting sustainable preparation techniques is very necessary for a better environment. The present study is a step towards developing an ... -
Effect of corona treatment on adhesion enhancement of LLDPE
Popelka A.; Nov?k I.; Al-Maadeed M.A.S.A.; Ouederni M.; Krupa I. ( Elsevier B.V. , 2018 , Article)Polymers/metal laminates are often used to improve physical and mechanical properties, especially those required in building applications. A flat aluminum composite panel (ACP) consisted mainly of two thin metal sheets ... -
Effect of humidity on the electrical properties of the silver polyaniline/polyvinyl alcohol nanocomposites
Bhadra J.; Popelka A.; Abdulkareem A.; Lehocky M.; Humpolicek P.; Al-Thani N.... more authors ... less authors ( Elsevier B.V. , 2019 , Article)Polymer-metal nanocomposites with enhanced mechanical, optical, electrical, dielectric, and antimicrobial properties are currently in high demand for many industrial applications. Here, we study and present the effect of ... -
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 ... -
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 ... -
Electrically conductive electrospun polymeric mats for sensing dispersed vegetable oil impurities inwastewater
Moghaddasi A.; Sobolciak P.; Popelka A.; Sadasivuni K.K.; Spitalsky Z.; Krupa I.... more authors ... less authors ( MDPI AG , 2019 , Article)This paper addresses the preparation of electrically conductive electrospun mats on a base of styrene-isoprene-styrene copolymer (SIS) and multiwall carbon nanotubes (CNTs) and their application as active sensing elements ... -
Electrochemical surface activation of commercial tungsten carbide for enhanced electrocatalytic hydrogen evolution and methanol oxidation reactions
Bin Yousaf, A.; Kveton, F.; Blsakova, A.; Popelka, A.; Tkac, J.; Kasak, P.... more authors ... less authors ( Elsevier B.V. , 2022 , Article)The chemistry of electrocatalysts deals with multiple critical factors to facilitate the electrochemical reactions. Among those, the rate limiting depends on electrons transfer for chemisorptions of molecules in redox ... -
Electrochemical system design for CO2 conversion: A comprehensive review
Sajna, M.S.; Zavahir, S.; Popelka, A.; Kasak, P.; Al-Sharshani, A.; Onwusogh, U.; Wang, M.; Park, H.; Han, D.S.... more authors ... less authors ( Elsevier Ltd , 2023 , Article)This paper reviews the electrochemical reduction of CO2 and the design of CO2 electrolyzer cells using advanced materials and novel configurations to improve efficiency and reduce costs. It examines various system types ... -
Electrospun Copolyamide Mats Modified by Functionalized Multiwall Carbon Nanotubes
Sobolciak P.; Tanvir A.; Popelka A.; Spitalsky Z.; Mrlik M.; Krupa I.... more authors ... less authors ( John Wiley and Sons Inc. , 2019 , Article)In this article, we report the preparation and properties of electro-conductive mats based on the commercial copolyamide (Vestamelt X1010) and multiwall carbon nanotubes functionalized by amino groups. Vestamelt X1010 is ... -
Electrospun Polystyrene/PANI-Ag fibers for organic dye removal and antibacterial application
Bhadra, J.; Parangusan, H.; Popelka, A.; Lehocky, M.; Humpolicek, P.; Al-Thani, N.... more authors ... less authors ( Elsevier Ltd , 2020 , Article)Herein we report superior dye-degradation performance for polyaniline-silver (PANI-Ag) nanoparticle coated on polystyrene (PS) electrospun membrane by in situ-polymerization method. Morphological study of the coated membrane ... -
Erratum: Piezoelastic PVDF/TPU nanofibrous composite membrane: Fabrication and characterization [Polymers, 11(10), 2019 (1634)] DOI: 10.3390/polym11101634
Elnabawy, E.; Hassanin, A.H.; Shehata, N.; Popelka, A.; Nair, R.; Yousef, S.; Kandas, I.... more authors ... less authors ( MDPI AG , 2020 , Article)The authors wish to make a change to the published paper [1]. Regarding the author name Ahmed H. Hassanain, the last name Hassanain should be spelled Hassanin. The authors apologize for any inconvenience caused. The change ... -
Experimental prediction of the elastic properties of nanocomposite cementitious materials based on nanoindentation measurements
Taqa, A.G.A.; Al-Rub, R.K.A.; Senouci, A.; Popelka, A.; Al-Nuaimi, N.; Bani-Hani, K.A.... more authors ... less authors ( American Scientific Publishers , 2017 , Article)This paper provides in depth novel exploration of the local mechanical properties of nanocomposite cement using the nanoindentation technique. The elastic properties of carbon nanotubes (CNTs)-reinforced and unreinforced ... -
Fabrication of flexible electrically conductive polymer-based micropatterns using plasma discharge
Popelka, A.; Bhadra, J.; Abdulkareem, A.; Kasak, P.; Spitalsky, Z.; Jang, S.W.; Al-Thani, N.... more authors ... less authors ( Elsevier B.V. , 2020 , Article)In this work, laboratory prepared PANI and it's composite with carbon nanotubes (PANI/CNTs) were used for the fabrication of micropatterns on flexible polyethylene terephthalate (PET) substrate using the drop cast method ...




