Browsing Exact and Earth Sciences by Subject "Nanocompósitos"
Now showing items 1-17 of 17
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Adsorption of ionic liquid onto halloysite nanotubes : thermal and mechanical properties of heterophasic PE-PP copolymer nanocomposites
(2016) [Journal article]The surface adsorption of inorganic clays with ionic liquids has attracted much attention due to improve the interaction of hydrophilic clay with the hydrophobic polymers. However, successful organic adsorption strongly ... -
Caracterização viscosimétrica de nanocompósitos híbridos PS/POSS
(2012) [Journal article]Nanocompósitos híbridos de poliestireno (PS) e poliedros oligoméricos silsesquioxanos (POSS) com diferentes composições e graus de hibridização foram obtidos por processamento reativo no estado fundido utilizando-se peróxido ... -
Characterization of metal oxide-based gas nanosensors and microsensors fabricated via local anodic oxidation using atomic force microscopy
(2013) [Journal article]Thiswork reports on nanoscale and microscalemetal oxide gas sensors, consisting ofmetal-semiconductor-metal barriers designed via scanning probe microscopy. Two distinctmetal oxides, molybdenum and titaniumoxides, were ... -
Chitosan nanocomposites with graphene-based filler
(2019) [Journal article]This study evaluates the properties of chitosan (CS) membranes modified with different percentages (0.5%, 3%, and 5% w/w) of a graphene-based material. Graphene oxide (GO) and reduced graphene oxide (RGO) were obtained by ... -
Comment on “Superspin glass mediated giant spontaneous exchange bias in a nanocomposite of BiFeO3-Bi2Fe4O9”
(2015) [Journal article] -
Comparação entre nanocompósitos de polietileno/nanotubos de carbono e polietileno/nanolâminas de grafeno obtidos por polimerização in situ
(2014) [Journal article]Nanocompósitos de polietileno/nanotubos de carbono foram sintetizados através da polimerização in situ para serem comparados com nanocompósitos de polietileno/nanolâminas de grafeno, obtidos nas mesmas condições. Os ... -
Efeito do SBS epoxidado como um agente compatibilizante para obtenção de nanocompósitos de SBS/argila cloisite 10A
(2014) [Journal article]Atualmente, cargas nanométricas são utilizadas para desenvolver novos materiais poliméricos com melhor desempenho mecânico. Neste trabalho, foi empregada uma mistura de borracha termoplástica de poli(estireno-b-butadieno ... -
Estudo da dispersão de argilas organofílicas em nanocompósitos de prolipropileno obtidos pelo método em solução com auxílio de ultrassom
(2013) [Journal article]Nanocompósitos de polipropileno PP/OMMT foram preparados com o uso de duas argilas modificadas organofilicamente (C-15A e I-44P) e de um compatibilizante (PP-g-MA) pelo método em solução utilizando-se um banho de ultrassom. ... -
Evaluation of surfactants addition as compatibilizers for halloysite nanotubes filled polypropylene nanocomposites
(2014) [Journal article]PP nanocomposites were obtained with halloysite nanotubes (HNT) by melting blending using a twin screw extrusion. Some additives were used for obtaining good mechanical and thermal properties, such as PP-g-MA and nonionic ... -
Hybrid polythiophene–clay exfoliated nanocomposites for ultracapacitor devices
(2012) [Journal article]Exfoliated nanocomposites of poly(3,4-ethylenedioxythiophene) (PEDOT) and montmorillonite (MMT) have been prepared by in situ anodic polymerization, concentrations of clay ranging from 5% w/w to 50% w/w being included in ... -
Morphological, viscoelastic and mechanical characterization of polypropylene/exfoliated graphite nanocomposites
(2013) [Journal article]The viscoelastic, mechanical and morphological properties of polypropylene/exfoliated graphite nanocomposites with different contents of nanofiller were investigated. According to transmission electron microscopy results, ... -
Photocatalytic studies of tio2/sio2 nanocomposite xerogels
(2017) [Journal article]The use of titania-silica materials in photocatalytic processes has been proposed as an alternative to the conventional TiO2 catalysts, in order to facilitate the separation of products after the reaction. However, despite ... -
Simple one-step method to synthesize polypyrrole-indigo carmine-silver nanocomposite
(2016) [Journal article]A nanocomposite of indigo carmine doped polypyrrole/silver nanoparticles was obtained by a one-step electrochemical process. The nanocomposite was characterized by scanning electron microscopy, infrared spectroscopy, ... -
Simple one-step method to synthesize polypyrrole-indigo carmine-silver nanocomposite
(2016) [Journal article]A nanocomposite of indigo carmine doped polypyrrole/silver nanoparticles was obtained by a one-step electrochemical process. The nanocomposite was characterized by scanning electron microscopy, infrared spectroscopy, ... -
Structural and Mössbauer characterization of the ball-milled Fe/sub x/(Al/sub 2/O/sub 3)/sub 100-x/ system
(2004) [Journal article]Metal-oxide composites were synthesized by high-energy ball milling of metallic iron (α-Fe) and alumina (α-Al2O3) powders, varying the starting relative concentration and the milling time. The samples were characterized ... -
Tunable reinforcement of epoxy-silica nanocomposites with ionic liquids
(2012) [Journal article]Imidazolium ionic liquids (ILs) have the capacity to exert multiple functions as additives for the formation of epoxy-silica nanocomposites, via the simultaneous sol–gel process and epoxy network build-up. This study ... -
UHMWPE-layered silicate nanocomposites by in situ polymerization with tris(pyrazolyl)borate titanium/clay catalyst
(2009) [Journal article]Nanocompósitos de polietileno-MMT foram preparados através da metodologia de polimerização in situ utilizando TpMs*TiCl3 (1) intercalado na galeria da Cloisite 30B (C30B) e na presença de metilaluminoxano (MAO) como ...
