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Wyniki wyszukiwania dla: chemical technology
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Influence of e-beam irradiation on the chemical and crystal structure of poly(aliphatic/aromatic-ester) multiblock thermoplastic elastomers
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Morphology and the physical and thermal properties of thermoplastic polyurethane reinforced with thermally reduced graphene oxide
PublikacjaIn this study, thermally reduced graphene oxide (TRG)-containing polyurethane nanocomposites were obtained by the extrusion method. The content of TRG incorporated into polyurethane elastomer systems equaled 0.5, 1.0, 2.0 and 3.0 wt%. The morphology, static and dynamic mechanical properties, and thermal stability of the modified materials were investigated. The application of TRG resulted in a visible increase in material stiffness...
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Emulsifi ers from renewable materials: an eco-friendly synthesis and properties
PublikacjaThe focus of this study was the preparation of novel bio based polyglycerol emulsifiers characterized by a one pot synthesis, thus by modified properties with respect to interfacial activity and effectiveness as emulsion stabilizers. The final products of the esterification process, carried out in the presence of carboxylates were used directly as emulsifiers (without purification or fractionation). Polyglycerol emulsifiers obtained...
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Liquid-solid interaction during formation of nanocomposite systems
PublikacjaW pracy zaprezentowano wyniki badań nad zmianami strukturalnymi w układach ciekłego Bi i małych cząsteczek Ni lub Cu w zakresie temperatur od 615 do 1145K. Zaobserwowano (SEM) mikrostruktury kompozytowe i przeanalizowano dla różnych temperaturach i różnych czasów mieszania. Strukturę układów Bi-Ni oraz Bi-Cu, zarówno w stanie stałym i ciekłym, zbadano za pomocą dyfrakcji rentgenowskich.
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Graphene hydrogels with embedded metal nanopatricles as efficient catalysts in 4-nitrophenol reduction and methylene blue decolorization
PublikacjaSynthesis and characterization of the graphene hydrogels with three different metallic nanoparticles, that is Au, Ag and Cu, respectively is presented. Synthesized in a one-pot approach graphene hydrogels with embedded metallic nanoparticles were tested as heterogeneous catalysts in a model reaction of 4-nitrophenol reduction. The highest activity was obtained for graphene hydrogel with Cu NPs and additional reaction of methylene...
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Efficient method for Knoevenagel condensation in aqueous solution of amino acid ionic liquids (AAILs)
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Selection of cutting and washing fluids as a method of waste minimization
PublikacjaW artykule przedstawiono wyniki testów korozyjności dla cieczy obróbkowych wykorzystywanych do produkcji przekładni skrzyni biegów. Testy prowadzono zgodnie z normami: DIN 51360-2 (Ford-test) oraz PN-92/M-55789. Badaniom poddano trzy ciecze obróbkowe oraz trzy ciecze chłodzące. Wraz ze spadkiem stężenia użytej cieczy, obserwowano większe ogniska korozji.
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Statistical optimization of the synthesis of plant-derived fatty acid esters of TMP over homogeneous organometallic tin catalyst
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Effect of extraction method on the antioxidative activity of ground elder (Aegopodium podagraria L.)
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Effect of the Yerba mate (Ilex paraguariensis) brewing method on the content of selected elements and antioxidant potential of infusions
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Strontium-based nanosized phosphates as anticorrosive fi llers of epoxy and polyurethane coating compositions
PublikacjaAnticorrosive epoxy and polyurethane coatings were compounded using zinc-free nanosized phosphates of strontium (SP) or strontium and aluminum (SAP). For comparison, a nanosized calcium aluminum ammonium phosphate (CAP) and a microsized zinc phosphate (ZP) were tested. Results of salts spray and cyclic corrosion tests revealed better anticorrosive properties of the SAP-based coatings...
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Starch plasticization with choline dihydrogencitrate-based deep eutectic system
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Dye decomposition on P25 with enhanced adsorptivity
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New photocatalyst for decomposition of humic acids in photocatalysis and photo-Fenton processes
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Carbon modified TiO2 photocatalysts for water purification
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Impact of paint matrix composition and thickness of paint layer on the activity of photocatalytic paints
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Photocatalytic mineralisation of humic acids using TiO2 modified by tungsten dioxide/ hydrogen peroxide
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High performance fluidized bed photoreactor for ethylene decomposition
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Preparation of Activated Carbon from the Biodegradable film for Co2 Capture Applications
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Fragrant films on the basis of potato starch
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Preliminary study on the influence of UV-C irradiation on microorganism viability and polyphenol compounds content during winemaking of ‘Regent’ red grape cultivar
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UV-crosslinkable photoreactive self-adhesive hydrogels based on acrylics
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Purification and recovery of laccase produced by submerged cultures of Trametes versicolor by three-phase partitioning as a simple and highly efficient technique
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Montmorillonite as the catalyst in oxidation of limonene with hydrogen peroxide and in isomerization of limonene
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Epoxidation of natural limonene extracted from orange peels with hydrogen peroxide over Ti-MCM-41 catalyst
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Green method of conversion of geraniol to value-added products in the presence of selected minerals
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The oxidation of limonene at raised pressure and over the various titanium-silicate catalysts
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Fe-modified activated carbon obtained from biomass as a catalyst for α-pinene autoxidation
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Biopolymers based paper coating with promoted grease resistivity, bio-degradable and mechanical properties
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Analysis of tank safety with propane-butane on LPG distribution station
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PANI/NaTaO3 composite photocatalyst for enhanced hydrogen generation under UV light irradiation
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Single-walled carbon nanotubes fractionation via electrophoresis
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Reversible electron charge transfer in single-wall carbon nanotubes
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Preparation and characterization of catalyst mix Fe-Co/MgO for carbon nanotubes growth
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Reduced graphene oxide and inorganic nanoparticles composites – synthesis and characterization
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Removal of Ni2+ from Aqueous Solutions by Adsorption Onto Magnetic Multiwalled Carbon Nanotube Nanocomposite
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Enhancement of Thermal Stability, Conductivity and Smoke Suppression of Polyethylene Composites with Exfoliated MoS2 Functionalized with Magnetite
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High Pressure Synthesis versus Calcination – Different Approaches to Crystallization of Zirconium Dioxide
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Equilibrium and kinetics studies for the adsorption of Ni2+ and Fe3+ ions from aqueous solution by graphene oxide
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Biochemical and cellular properties of Gluconacetobacter xylinus cultures exposed to different modes of rotating magnetic field
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Pilot study of the influence of thermoplastic starch based polymer packaging material on the growth of diatom population in sea water environment
PublikacjaNovel polymeric packaging materials susceptible to environmentally friendly decomposition appeared on the global market. The paper is devoted to an investigation of the impact of degradable polymer packaging on marine life. The chosen polymer was a commercial packaging based on thermoplastic starch (TPS over 85%). The microorganism chosen was Phaeodactylum tricornutum diatom (identified in many aquatic reservoirs, with a tendency...
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The study of glycerol-based fermentation and broth downstream by nanofiltration
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Determination of Fe2+/Fe3+ mole ratio based on the change of precursor lattice parameters of wustite based iron catalysts for the ammonia synthesis
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On the characteristic and stability of iron diet supplements
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Characterization of FeCo based catalyst for ammonia decomposition. The effect of potassium oxide
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The application of ultrafiltration for separation of glycerol solution fermented by bacteria
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Utilization of spent iron catalyst for ammonia synthesis
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Scaling diminution by heterogeneous crystallization in a filtration element integrated with membrane distillation module
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Preparation, properties and potential applications of a photocurable varnish with pleasant limonene smell
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A preliminary study on antifungal effect of TiO2-based paints in natural indoor light
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