Exploració per tema "Nanocompostos (Materials)"
Ara es mostren els items 1-20 de 35
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A new epoxy-based layered silicate nanocomposite using a hyperbranched polymer: study of the curing reaction and nanostructure development
(2014-03-01)
Article
Accés obertPolymer layered silicate (PLS) nanocomposites have been prepared with diglycidyl ether of bisphenol-A (DGEBA) epoxy resin as the matrix and organically modified montmorillonite (MMT) as the clay nanofiller. Resin-clay ... -
Cellulose nanofiber nanocomposite pervaporation membranes for ethanol recovery
(American Chemical Society, 2021-01-12)
Article
Accés obertIn spite of the growing interest to exploit nanocellulose in membranes for water purification, reverse osmosis, packaging, and other applications, examples of nanocellulose-containing membranes for pervaporation are rather ... -
Chemical and electrochemical characterization of Nafion containing silver nanoparticles in stripe-like distribution
(2016-01-01)
Article
Accés obertThe particular chemical structure of Nafion with nanostructured and segregated hydrophilic and hydrophobic domains enables its use as a model structure for the manufacture of polymer–Metal nanocomposites. Among such ... -
Comparison of the nanostructure and mechanical performance of highly exfoliated epoxy-clay nanocomposites prepared by three different protocols
(2014-05-30)
Article
Accés obertThree different protocols for the preparation of polymer layered silicate nanocomposites based upon a tri-functional epoxy resin, triglycidyl para-amino phenol (TGAP), have been compared in respect of the cure kinetics, ... -
Daño por contacto hertziano en un nanocompuesto Ce-TZP/Al2O3
(2011)
Article
Accés obertEl material compuesto Ce-TZP/Al 2 O 3 es una cerámica nanoestructurada con granos de alúmina y circona tetragonal estabilizada con ceria. Actualmente, este tipo de compuestos están siendo desarrollados con el objetivo ... -
Desarrollo de nanocompuestos con efecto autolimpiante para cuero y téxtil
(2016)
Text en actes de congrés
Accés restringit per política de l'editorialEl objetivo principal de este trabajo es desarrollar nuevos sistemas nanotecnológicos multifuncionales para aplicar en los procesos de la industria del cuero y del textil para asientos de espacios y vehículos públicos. ... -
Development of micro/nanocomposites with antibacterial effect for leather and textile
(2016-06-15)
Article
Accés restringit per política de l'editorialThe aim of this work was to develop new systems of micro/nanocomposites to confer new functions to materials used for seats of public vehicles and public spaces. Specifically, this study focuses on antibacterial effect for ... -
Effect of different dispersing agents in the non-isothermal kinetics and thermomechanical behavior of PET/TiO2 composites
(2016-04-02)
Article
Accés obertThis work is based on the analysis of the influence of dispersing agents on the non-isothermal kinetics, thermomechanical behavior and dispersing action of PET/TiO2 nanocomposites. The influence of two montanic waxes and ... -
Effect of surface treatment of titanium dioxide nanoparticles on non-isothermal crystallization behavior, viscoelastic transitions and cold crystallization of poly(ethylene terephthalate) nanocomposites
(2014-01-01)
Article
Accés restringit per política de l'editorialThe effect of untreated and tri-n-octylphosphine oxide (TOPO) surface-treated TiO2 nanoparticles when included as filler in poly (ethylene terephthalate) on its compatibility, non-isothermal crystallization behavior, ... -
Effect of the presence of an ester of montanic acids with multifunctional alcohols in the composites of titanium dioxide nanoparticles with poly(ethylene terephthalate) in their non-isothermal crystallization
(2015-09-02)
Article
Accés obertThe effect of the addition of an ester of montanic acid with multifunctional alcohols in the effectiveness of the dispersion and compatibility of TiO2 nanoparticles when included as filler in poly(ethyleneterephthalate) ... -
Enhanced dielectric performance of a block copolymer-polythiophene nanocomposite
(2016-09-15)
Article
Accés obertDielectric elastomer actuators (DEAs) transform electrical energy into mechanical work. However, despite displaying exceptional features, the low permittivity of elastomers restricts their application. Hence, to overcome ... -
Epoxy sol-gel hybrid thermosets
(MDPI AG, 2016-02-03)
Article
Accés obertSol-gel methodologies are advantageous in the preparation of hybrid materials in front of the conventional addition of nanoparticles, because of the fine dispersion of the inorganic phase that can be reached in epoxy ... -
Generación de compuestos de nanofibras con recubrimiento electrolítico de polímeros conductores para el encapsulamiento de fármacos
(Universitat Politècnica de Catalunya, 2015-05-05)
Treball Final de Grau
Accés obertL’objectiu del treball ha estat l’obtenció de nanocomposites de films de PEDOT electrogenerat i nanofibres de Bionolle® (polibutilè succinat) obtingudes mitjançant la tècnica d’ electrospinning, i la verificació de si són ... -
Hydrogen photoproduction from ethanol-water mixtures over Au-Cu alloy nanoparticles supported on TiO2
(2015-03-01)
Article
Accés obertAu/TiO2, Au0.75Cu0.25/TiO2, Au0.5Cu0.5/TiO2 and Au0.25Cu0.75/TiO2 photocatalysts prepared from pre-formed Au and Au-Cu alloy nanoparticles of controlled composition and size were loaded over ceramic honeycombs (2 mg cm(-2)) ... -
Improvement of dielectric properties of natural rubber by adding perovskite nanoparticles
(2016-02)
Article
Accés obertNatural rubber matrix, reinforced with several conventional stabilizer additives, was further charged with perovskite nanoparticles. Although the addition of BaTiO3 ceramic particles usually transforms a non-conducting ... -
In-situ nanocomposite in friction stir welding of 6061-T6 aluminum alloy to AZ31 magnesium alloy
(2019-01-01)
Article
Accés obertPrior to friction stir welding (FSW), silicon carbide (SiC) nanopowders were placed inside the groove on the adjacent side of magnesium sheet. In order to make a good distribution of these nanoparticles, first, friction ... -
Isocyanate toughening of pCBT/organoclay nanocomposites with exfoliated structure and enhanced mechanical properties
(2014-12-01)
Article
Accés restringit per política de l'editorialCyclic butylene terephthalate (CBT (R)) is an interesting matrix material for the preparation of nanocomposites due to its very low, water-like melt viscosity which favours clay exfoliation. Nevertheless, polymerized CBT ... -
Melt Electrospinning of Polymer: Additives, Nanocomposites and Blending
(Universitat Politècnica de Catalunya, 2020-10-26)
Projecte Final de Màster Oficial
Accés obert
Realitzat a/amb: Instituto Politecnico do PortoEn l’última dècada, s’ha desenvolupat el melt electrospinning com a un procés ecològic i lliure de dissolvent per disminuir la bretxa entre els avantatges que presenta l’electrospinning en solució i la necessitat d’una ... -
Micromoldeo mediante ultrasonidos. Encapsulación de fármacos y preparación de nanocompuestos
(Universitat Politècnica de Catalunya, 2013-10)
Projecte/Treball Final de Carrera
Accés obertEn este Proyecto, se ha estudiado la aplicación de un nuevo sistema de micromoldeo mediante ultrasonidos, evaluando el efecto de diferentes condiciones de procesado en un material biodegradable, así como la incorporación ... -
Molecular mobility in hyperbranched polymers and their interaction with an epoxy matrix
(2016-03-01)
Article
Accés obertThe molecular mobility related to the glass transition and secondary relaxations in a hyperbranched polyethyleneimine, HBPEI, and its relaxation behaviour when incorporated into an epoxy resin matrix are investigated by ...