Browsing by Author "Krupa, Igor"
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Electrically conductive composites based on an elastomeric matrix filled with expanded graphite as a potential oil sensing material
Krupa, Igor; Prostredny, Martin; Spitalsky, Zdenko; Krajci, Juraj; Almaadeed, Mariam Ali S. ( Institute of Physics Publishing , 2014 , Article)The preparation and properties of electrically conductive polymeric composites based on an elastomer matrix (styrene-isoprene styrene block copolymer) filled with expanded graphite are reported in this paper. The developed ... -
Electrically conductive, transparent polymeric nanocomposites modified by 2D Ti3C2Tx (MXene)
Tanvir, Aisha; Sobolčiak, Patrik; Popelka, Anton; Mrlik, Miroslav; Spitalsky, Zdenko; Micusik, Matej; Prokes, Jan; Krupa, Igor... more authors ... less authors ( MDPI AG , 2019 , Article)The electrically conductive, transparent, and flexible self-standing thin nanocomposite films based on copolyamide matrix (coPA:Vestamelt X1010) modified with 2D Ti3C2Tx (MXene) nanosheets were prepared by casting and their ... -
Electrochemical Investigation of Interfacial Properties of Ti3C2Tx MXene Modified by Aryldiazonium Betaine Derivatives
Lorencova, Lenka; Gajdosova, Veronika; Hroncekova, Stefania; Bertok, Tomas; Jerigova, Monika; Velic, Dusan; Sobolciak, Patrik; Krupa, Igor; Kasak, Peter; Tkac, Jan... more authors ... less authors ( Frontiers Media S.A. , 2020 , Article)For efficient and effective utilization of MXene such as biosensing or advanced applications, interfacial modification of MXene needs to be considered. To this end, we describe modification of Ti3C2Tx MXene by aryldiazonium-based ... -
Emerging clay-aryl-gold nanohybrids for efficient electrocatalytic proton reduction
Jlassi, Khouloud; Zavahir, Sifani; Kasak, Peter; Krupa, Igor; Mohamed, Ahmed A. ( Elsevier , 2018 , Article)There is an ever growing demand for renewable sources of energy to replace conventional fossil fuels. One of the alternatives is usage of hydrogen production by electrochemical hydrogen evolution reaction (HER). Toward ... -
Enhancement of adhesion characteristics of low-density polyethylene using atmospheric plasma initiated-grafting of polyethylene glycol
Al-Gunaid, Taghreed A.; Krupa, Igor; Ouederni, Mabrouk; Krishnamoorthy, Senthil K.; Popelka, Anton ( MDPI AG , 2021 , Article)The low-density polyethylene/aluminum (LDPE/Al) joint in Tetra Pak provides stability and strength to food packaging, ensures protection against outside moisture, and maintains the nutritional values and flavors of food ... -
Enhancement of the Interfacial Adhesive Strength between Low Density Polyethylene and Aluminum Foil for Packaging Applications
Al-Gunaid, Taghreed Abdulhameed (2021 , Master Thesis)The low-density polyethylene/aluminum (LDPE/Al) joint in Tetra Pak liquid containers provides stability and strength to the food package, ensures protection against outside moisture, and maintains the nutritional values ... -
Evaluation of photothermal conversion performance of shape-stabilized phase change materials using a heat flux evolution curve
Nishad, Safna; Mohammed, Himyan; Sobolciak, Patrik; Krupa, Igor ( Elsevier , 2023 , Article)Phase change materials are promising alternatives for solar energy harvesting by photothermal conversion and thermal energy storage. In this work, a shape-stabilized phase change material (PCM) was prepared by hot-melt ... -
Evaluation of polymeric adsorbents via fixed-bed columns for emulsified oil removal from industrial wastewater
Mashael, Al-Maas; Minier-Matar, Joel; Krupa, Igor; Al-Maadeed, Mariam Al Ali; Adham, Samer ( Elsevier Ltd , 2022 , Article)Polymeric adsorbents (PAs) have been gaining increased attention for application in industrial wastewater (WW) treatment. However, most studies on evaluating PAs specifically for emulsified oil removal are currently limited ... -
Exchange counterion in polycationic hydrogels: Tunability of hydrophobicity, water state, and floating capability for a floating ph device
Danko, Martin; Kronekova, Zuzana; Krupa, Igor; Tkac, Jan; Matúš, Peter; Kasak, Peter... more authors ... less authors ( MDPI AG , 2021 , Article)Smart gel materials are capable of controlling and switching swelling, water state, and wettability properties triggered by external stimuli. In this study, we fabricated a series of polyelectrolyte hydrogels bearing a ... -
Fabrication of Nano-Composite Membrane for FO Desalination
Siddiqui, Hammadur Rahman (2021 , Master Thesis)The aim of this work is to solve the current issues experienced in forward osmosis (FO) membranes such as low water flux, membrane fouling, and high reverse solute flux (RSF). We also propose a novel technique to ... -
Flexible oil sensors based on multiwalled carbon nanotube-filled isoprene elastomer composites
Ponnamma, Deepalekshmi; Sadasivuni, Kishor Kumar; Thomas, Sabu; Krupa, Igor; AlMa'adeed, Mariam Al-Ali ( Rubber Division of the American Chemical Society , 2016 , Article)Oil Spills Due To Either Accidents Or Deliberate Oily Discharges Cause Severe Pollution And Can Be Thwarted If Proper Detection Facilities Are Applied. This Article Reports New Flexible Oil Sensor Capabilities Of Three ... -
Fluorescent Zn(II)-Based Metal-Organic Framework: Interaction with Organic Solvents and CO<inf>2</inf> and Methane Capture
Zavahir, Sifani; Yahia, Hamdi Ben; Schneider, Julian; Han, Dongsuk; Krupa, Igor; Altamash, Tausif; Atilhan, Mert; Amhamed, Abdulkarem; Kasak, Peter... more authors ... less authors ( MDPI , 2022 , Article)Adsorption of carbon dioxide (CO2), as well as many other kinds of small molecules, is of importance for industrial and sensing applications. Metal-organic framework (MOF)-based adsorbents are spotlighted for such applications. ... -
Foamed phase change materials based on recycled polyethylene/paraffin wax blends
Sobolčiak, Patrik; Mrlik, Miroslav; Popelka, Anton; Minařík, Antonín; Ilcikova, Marketa; Srnec, Peter; Nogellova, Zuzana; Ouederni, Mabrouk; Krupa, Igor... more authors ... less authors ( MDPI , 2021 , Article)Foamed phase-change materials (FPCMs) were prepared using recycled linear low-density polyethylene (LLDPE) blended with 30 wt.% of paraffin wax (PW) and foamed by 1,1′-azobiscarbamide. The protection of pores’ collapse ... -
Heat Absorbers based on Recycled Polyethylene and Paraffin Wax for Energy Storage
Abdelrazeq, Haneen (2016 , Master Thesis)The building sector is one of the main sectors in Qatar; however, it consumes a huge portion of primary energy sources. Today, there is a worldwide trend to utilize renewable sources of energy to cover buildings’ energetic ... -
Heat transfer performance of paraffin wax based phase change materials applicable in building industry
Sobolciak, Patrik; Abdelrazeqa, Haneen; Ozerkan, Nesibe Gozde; Ouederni, Mabrouk; Nogellova, Zuzana; AlMaadeed, Mariam A.; Karkri, Mustaph; Krupa, Igor... more authors ... less authors ( Elsevier Ltd , 2016 , Article)Thermal characterization of phase change materials (PCMs) compose of linear low-density polyethylene (LLDPE), paraffin wax (W) with a melting point of 25 °C, and expanded graphite (EG), that are highly effective in thermal ... -
Highly conductive phase change composites based on paraffin-infiltrated graphite panels for photo/electrothermal conversion and storage
Nishad, Safna; Kasak, Peter; Krupa, Igor ( Elsevier , 2023 , Article)The extensive utilization of phase change materials (PCMs) for thermal energy harvesting, storage, and thermal management is often constrained by their inadequate thermal and electrical conductivity, form instability, and ... -
Impact of ionic liquids on the processing and photo-actuation behavior of SBR composites containing graphene nanoplatelets
Gaca, Magdalena; Ilcikova, Marketa; Mrlik, Miroslav; Cvek, Martin; Vaulot, Cyril; Urbanek, Pavel; Pietrasik, Robert; Krupa, Igor; Pietrasik, Joanna... more authors ... less authors ( Elsevier , 2021 , Article)The effects of butylpyridinium bromide-based ionic liquids (ILs) on the vulcanization kinetics, mechanical properties and photo-actuation ability of styrene-butadiene rubber (SBR) composites filled with graphene nanoplatelets ... -
Improved mechanical properties of recycled linear low-density polyethylene composites filled with date palm wood powder
AlMaadeed, Mariam A.; Nógellová, Zuzana; Janigová, Ivica; Krupa, Igor ( Elsevier, Ltd , 2014 , Article)Recycled linear low-density polyethylene (RLLDPE) was blended with date palm wood powder to prepare composites in which the concentration of the filler ranged from 10 to 70wt.%. The cross-linking of composites was performed ... -
Improvement of aluminum/polyethylene adhesion through corona discharge
Popelka, Anton; Krupa, Igor; Novák, Igor; Al-Maadeed, Mariam Ali S A; Ouederni, Mabrouk ( Institute of Physics Publishing , 2017 , Article)Polyethylene (PE) is often used in several industrial applications including the building, packaging and transport industries. Aluminum (Al) is widely used in different applications in the automotive, railway, aeronautic, ... -
Influence of surface modification of carbon nanotubes on interactions with polystyrene-b-polyisoprene-b-polystyrene matrix and its photo-actuation properties
Ilčíková, Markéta; Mosnáček, Jaroslav; Mrlík, Miroslav; Sedláček, Tomáš; Csomorová, Katarína; Czaniková, Klaudia; Krupa, Igor... more authors ... less authors ( John Wiley & Sons, Ltd. , 2014 , Article)The influence of various surface modification of multiwalled carbon nanotubes (MWCNT) on preferential interactions with individual phases of the linear triblock copolymer polystyrene-b-polyisoprene-b-polystyrene (SIS) and ...