Browsing by Subject "Thermal stability"
Now showing items 1-15 of 15
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Development of a protocol to investigate the stability of drugs used by Qatar's National Ambulance Service in rapid response vehicles
( Hamad bin Khalifa University Press (HBKU Press) , 2022 , Article)Background: Paramedics need a range of medications that are stored in bags for easy transportation to the patient's side and are exposed to temperature variations, especially in a hot country like Qatar 1 . The thermal ... -
Development of eco-friendly chitosan-g-polyacrylamide preformed particle gel for conformance control in high-temperature and high-salinity reservoirs
( Elsevier , 2023 , Article)Oil and gas extraction has become challenging nowadays due to the accompanying amount of excess produced water that results in poor recoverability of hydrocarbon, besides other environmental and economic isues. A recent ... -
Effect of ethylene-vinyl acetate copolymer on kinematic viscosity and thermal stability of jojoba, date seed, and waste cooking oils in lubricant applications
( Springer Science and Business Media Deutschland GmbH , 2022 , Article)Vegetable oils possess excellent lubricant properties, but one reason limiting their application as lubricants is their low kinematic viscosity. This study investigated how the addition of ethylene-vinyl acetate copolymer ... -
The effect of expanded graphite on the flammability and thermal conductivity properties of phase change material based on PP/wax blends
( Springer , 2015 , Article)The study reports on the flammability, thermal stability, impact properties and thermal conductivity of shape-stabilized phase change materials based on a soft Fischer–Tropsch paraffin wax blended with polypropylene (PP). ... -
Effect of graphene on thermal stability of tin selenide
( Elsevier , 2022 , Article)The thermal stability of polycrystalline tin selenide (SnSe) is essential for its long-term applications. In this study, the thermo-mechanical stability of hot compacted polycrystalline SnSe and SnSe/graphene nanocomposite ... -
Effect of layered silicates on the thermal stability of PCL/PLA microfibrillar composites
( Elsevier , 2016 , Article)This paper reports on an investigation of the influence of the presence of two different clays, Cloisite 15A and Cloisite 30B, and fibre drawing on the degradation behaviour and kinetics of PCL/PLA composites. It was ... -
Investigation on the effect of LiTFSI salt on PVDF-based Solid Polymer Electrolyte Membranes for Lithium-Ion Batteries
( Qatar University Press , 2021 , Poster)Solid polymer electrolytes provide an alternative approach to providing improved safety whilst concurrently acting as a performance enhanced separator within Lithium-ion batteries (LIBs). This investigation studies the ... -
Modification of Pd/CeO2 catalyst by Atomic Layer Deposition of ZrO2
( Elsevier , 2016 , Article)Modification of a 1 wt% Pd/CeO2 catalyst by Atomic Layer Deposition of thin ZrO2 films was studied. Calcination of the unmodified Pd/CeO2, prepared by precipitation of aqueous Ce(NO3)3 solutions, with Pd added by impregnation, ... -
Morphology and properties of poly(methyl methacrylate) (PMMA) filled with mesoporous silica (MCM-41) prepared by melt compounding
( Springer , 2016 , Article)This paper reports on the morphologies of poly(methyl methacrylate) (PMMA)/mesoporous silica (MCM-41) composites prepared by melt compounding with various MCM-41 contents in the range of 0.1–5 wt%, the interactions between ... -
Morphology and thermal degradation studies of melt-mixed poly(hydroxybutyrate-co-valerate) (PHBV)/poly(ε-caprolactone) (PCL) biodegradable polymer blend nanocomposites with TiO2 as filler
( Springer , 2015 , Article)The morphology, thermal stability and thermal degradation kinetics of melt-mixed poly(hydroxybutyrateco-valerate) (PHBV)/poly(e-caprolactone) (PCL) blends filled with small amounts of titanium(IV)oxide (TiO2) nanoparticles ... -
Novel fluorinated surfactants for enhanced oil recovery in carbonate reservoirs
( Wiley-Liss Inc. , 2016 , Article)Novel surfactant‐polymer (SP) formulations containing fluorinated amphoteric surfactant (surfactant‐A) and fluorinated anionic surfactant (surfactant‐B) with partially hydrolyzed polyacrylamide (HPAM) were evaluated for ... -
Physico-Mechanical Properties of New Electrospun Polyvinylidene Fluoride Nanocomposites
(2015 , Master Thesis)This study aimed to prepare and characterize poly(vinylidene fluoride) (PVDF) nanofibres with the following additives: graphene oxide (GO), cellulose, and silver nanoparticles (Ag-NPs). Two types of solvents were used to ... -
Poly(aniline-co-o-nitroaniline): transport properties using electrochemical impedance spectroscopy
( Springer Science and Business Media Deutschland GmbH , 2020 , Article)Highly uniform ac conductivity and dielectric permittivity of poly(aniline-co–o-nitroaniline) (PA-co-o-NA)s have been recorded by using electrochemical impedance spectroscopy in the frequency range of 10–2–107 Hz. Also, ... -
Synergistic effect of expanded graphite, diammonium phosphate and Cloisite 15A on flame retardant properties of EVA and EVA/wax phase change blends
( Springer , 2015 , Article)The influence of the introduction of expanded graphite (EG), as well as combinations of EG with Cloisite 15A clay and diammonium phosphate (DAP), into EVA and an EVA/wax blend on the thermal stability and flammability of ... -
Thermal insitu analyses of multicomponent pyrophosphate cathodes materials
( Electrochemical Science Group , 2015 , Article)Development of secondary batteries based on abundant and inexpensive elements are vital. Amongvarious alternative choices, sodium-ion batteries (NIBs) are promising because of plentiful resourcesand low costs of sodium ...