Browsing by Author "Krupa, Igor"
Now showing items 1-20 of 68
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2D Ti3C2Tx (MXene)-reinforced polyvinyl alcohol (PVA) nanofibers with enhanced mechanical and electrical properties
Sobolčiak, Patrik; Ali, Adnan; Hassan, Mohammad K.; Helal, Mohamed I.; Tanvir, Aisha; Popelka, Anton; Al-Maadeed, Mariam A.; Krupa, Igor; Mahmoud, Khaled A.... more authors ... less authors ( Public Library of Science , 2017 , Article)Novel 2D Ti3C2Tx (MXene)-reinforced polyvinyl alcohol (PVA) nanofibers have been successfully fabricated by an electrospinning technique. The high aspect ratio, hydrophilic surfaces, and metallic conductivity of delaminated ... -
A new experimental device and inverse method to characterize thermal properties of composite phase change materials
Didier, Gossard; Mustapha, Karkri; AlMaadeed, Mariam A.; Krupa, Igor ( Elsevier BV , 2015 , Article)A new experimental device has been developed in order to characterize the phase change material (PCM) thermal properties (thermal conductivity k, sensible and latent heat thermal energy storage, cp and Lf) in the solid ... -
A novel alternative to free oil remediation and recovery: Foamy absorbents designed from low molecular paraffinic waste
Krupa, Igor; Mahmoud, Abdelrahman; Sobolciak, Patrik; Popelka, Anton; Mrlik, Miroslav; Minarik, Antonin; Gasmi, Soumia; Ouederni, Mabrouk; Adham, Samer... more authors ... less authors ( Elsevier , 2022 , Article)This study focuses on preparing porous, hydrophobic, and oleophilic hydrocarbon-based foams applicable for removing free oils from water surfaces. Paraffinic waste material generated during industrial production of low-density ... -
A polysulfobetaine hydrogel for immobilization of a glucose-binding protein
Kasák, Peter; Mosnáček, Jaroslav; Danko, Martin; Krupa, Igor; Hloušková, Gabriela; Chorvát, Dušan; Koukaki, Marina; Karamanou, Spyridoula; Economou, Anastassios; Lacík, Igor... more authors ... less authors ( Royal Society of Chemistry , 2016 , Article)A hydrogel based on sulfobetaine methacrylate monomer N-(methacryloyloxyethyl)-N,N-dimethyl-N-(3-sulfopropyl)ammonium betaine and N,N-bis(methacryloyloxyethyl)-N-methyl-N-(3-sulfopropyl)ammonium betaine used as a crosslinker ... -
Adhesion Improvement Between Polyethylene and Aluminum Using Eco-Friendly Plasma Treatment
Popelka, Anton; Krupa, Igor; Novak, Igor; Ouederni, M.; Abdulaqder, Fatima; Al-Yazedi, Shrooq; Al-Gunaid, Taghreed; Al-Senani, Thuraya... more authors ... less authors ( John Wiley & Sons, Inc. , 2015 , Book chapter) -
Advanced Thermal Energy Systems Based On Paraffin Waxes Applicable In Building Industry
Sobolciak, Patrik; Karkri, Mustapha; Krupa, Igor; Al Maadeed, Mariam ( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)Thermal energy storage systems are crucial for reducing dependency on fossil fuels and minimizing CO2 emissions. The building sector is a major sector responsible for producing high levels of CO2 in most countries (including ... -
Alginate-halloysite nanocomposite aerogel: Preparation, structure, and oil/water separation applications
Bhagyaraj, Sneha; Krupa, Igor ( MDPI AG , 2020 , Article)Environmental remediation using green approaches for addressing various pollution-related issues, especially water pollution, is in high demand. Here, we designed an environmentally friendly, low-cost, and stable sodium ... -
Alginate-mediated synthesis of hetero-shaped silver nanoparticles and their hydrogen peroxide sensing ability
BHAGYARAJ, SNEHA; KRUPA, IGOR ( Qatar University Press , 2020 , Poster)Silver nanoparticles have been the focus of extensive research for many decades due to their unique physical, chemical and electrical properties. Introducing new environmentally benign methods for the synthesis of silver ... -
An Adhesion Improvement of Low-Density Polyethylene to Aluminum through Modification with Functionalized Polymers
Nassr, Mohamed; Krupa, Igor; Ouederni, Mabrouk; Krishnamoorthy, Senthil K.; Popelka, Anton ( MDPI , 2023 , Article)An interfacial adhesion improvement between low-density polyethylene (LDPE) and aluminum (Al) foil is an important challenge in designing multilayered packaging (TetraPak packaging type) due to insufficient inherent adhesion ... -
An Enhancement of Compositional Stability of Phase Change Materials by Lamination with Aluminum Sheet
Kallingal, Nithusha; Sobolčiak, Patrik; Akbar, Himyan M.; Krupa, Igor; Novak, Igor; Popelka, Anton... more authors ... less authors ( MDPI , 2023 , Article)The wax leakage from shape-stabilized phase change materials (SSPCMs) is a limitation because it reduces their functionality. In this work, an enhancement of the compositional stability of SSPCMs formed by high-density ... -
Antibacterial Modification Of Polyethylene By Multistage Process Utilizing Low-temperature Plasma
Popelka, Anton; Novák, Igor; Lehocký, Marián; Krupa, Igor ( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)Limiting factor of PE application in healthcare is high susceptibility of polyethylene towards bacterial growth. For this reason, antibacterial treatment of PE foils using appropriate antibacterial agents was used in this ... -
Bentonite-decorated calix [4] arene: A new, promising hybrid material for heavy-metal removal
Jlassi, Khouloud; Abidi, Rym; Benna, Memia; Chehimi, Mohamed M; Kasak, Peter; Krupa, Igor... more authors ... less authors ( Elsevier , 2018 , Article)There is global concern about the contamination of ground, river, and tap waters as well as soil contamination with heavy metal ions; these chemical species are known to not degrade and to cause severe health problems if ... -
Calorimetric and dynamic mechanical behavior of phase change materials based on paraffin wax supported by expanded graphite
Sobolciak, Patrik; Mrlik, Miroslav; Almaadeed, Mariam A.; Krupa, Igor ( Elsevier , 2015 , Article)This study addressed the characterization and description of calorimetric and dynamic mechanical properties of phase change materials (PCMs) based on linear low-density polyethylene (LLDPE), paraffin wax (W) and expanded ... -
Cold Plasma as Effective Tool for Aluminum Surface Cleaning
Popelka, Anton; Krupa, Igor ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Aluminum (Al) is heavily used to manufacture structural parts in the aeronautic, railway, automotive or naval industries because of its lightness and its corrosion resistance [1]. One of the most popular uses of Al is in ... -
Date Palm Cellulose Nanocrystals (CNCs)/Polyamide Composites: Tailoring Morphological, Mechanical, and Thermal Properties
Jose, Cintil; Anju, Thoppil R.; Tharayil, Abhimanyu; Sobolciak, Patrik; Krupa, Igor; Al Maadeed, Mariam A.; Kargarzadeh, Hanieh; Thomas, Sabu... more authors ... less authors ( MDPI , 2023 , Article)In the present study, polyamide (PA) was successfully reinforced with cellulose nanocrystal (CNC) prepared from date palm leaves using two different techniques, electrospinning and the solution casting method, and a ... -
Designing dual phase sensing materials from polyaniline filled styrene-isoprene-styrene composites
Sadasivuni, Kishor Kumar; Ponnamma, Deepalekshmi; Kasak, Peter; Krupa, Igor; Al-Maadeed, Mariam Ali S.A. ( Elsevier Ltd , 2014 , Article)The demand for developing oil detectors is ever increasing since the cleanup and recovery from oil spill usually take long time. Here we propose oil sensors made of polyaniline (PANI) filled poly(styrene-isoprene-styrene) ... -
Designing of polyethylene-based material modified by plasma discharge for water/oil separation
ABDULKAREEM, ASMA ABDULGADER MOHAMED (2021 , Master Thesis)Produced water (PW) from petrochemical industries is one of the largest wastewaters generated in Qatar. Soluble and insoluble oil contaminants occur in this water and must be removed if water will be used or discharged ... -
Eco-Friendly Electromagnetic Interference Shielding Materials from Flexible Reduced Graphene Oxide Filled Polycaprolactone/Polyaniline Nanocomposites
Ponnamma, Deepalekshmi; Sadasivuni, Kishor Kumar; Strankowski, Michael; Kasak, Peter; Krupa, Igor; AlMaadeed, Mariam Al-Ali... more authors ... less authors ( Taylor and Francis Inc. , 2016 , Article)Hybrid nanocomposites have the unique ability of enhancing material properties due to the existing synergistic effect of the fillers. In this study, the authors report such an eco-friendly hybrid nanocomposite comprising ... -
Effect of waste wax and chain structure on the mechanical and physical properties of polyethylene
AlMaadeed, M.A.; Labidi, Sami; Krupa, Igor; Ouederni, Mabrouk ( Elsevier B.V. , 2015 , Article)The influence of adding waste wax, produced as a by-product of the low density polyethylene manufacturing process, on the thermal and mechanical properties of three types of polyethylene (PE), high-density polyethylene ... -
Elastomeric actuators based on ethylene-vinyl acetate and carbon nanotubes
Czanikova, Klaudia; Omastova, Maria; Krupa, Igor; Kasak, Peter; Pavlova, Ewa; Chorvat Jr., Dusan... more authors ... less authors ( Springer Netherlands , 2014 , Book chapter)The development of new types of visual-aid tablet for visually impaired people requires the development of cheap, but still very effective photoactuating materials. This requirement can be satisfied by the use of new kind ...