Listar FRLP - I+D+i - CENTROS - CITEMA - TRABAJOS DE INVESTIGACIÓN por fecha de publicación
Mostrando ítems 21-40 de 45
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Research on methanol tolerant catalysts for the oxygen reduction reaction
(Springer, 2015)Direct methanol fuel cells (DMFCs) generate electricity in a clean and efficient way, so they are a valuable alternative to traditional environmentally harmful technologies. Portable power sources are one of the applications ... -
Estudio de diferentes condiciones de síntesis para la obtención de zeolita NaA a partir de cenizas volantes
(Investigación Joven, 2015)En este trabajo se propuso zeolitizar una ceniza volante industrial a través de un proceso hidrotermal. Para ello, se probó mejorar su reactividad sometiéndola a un pretratamiento de calcinación en presencia de compuestos ... -
Evaluation of pH-sensitive poly(2-hydroxyethyl methacrylate-co-2- (diisopropylamino)ethyl methacrylate) copolymers as drug delivery systems for potential applications in ophthalmic therapies ocular delivery of drugs
(2015)Smart polymers like pH sensitive systems can improve different pharmacological treatment. In this work the behavior of copolymers containing 2-hydroxyethyl methacrylate (HEMA) with different proportions of 2-(diisopropyl ... -
Evaluation of pH-sensitive polyurethane 2-diethylaminoethyl methacrylate hybrids potentially useful for drug delivery developments
(2015)Smart sensitive polymers have been used to improve processes in drug delivery. In this article, we evaluate the behavior of polyurethane/N,N-diethylaminoethyl methacrylate hybrids (PU/DEA) as pH- responsive polymers ... -
Polyurethane Poly(2-(Diethyl Amino)Ethyl Methacrylate) blend for drug delivery applications
(2015)A pH-sensitive blend of polyurethane (PU) and poly(2-(diethyl amino)ethyl methacrylate (PDEA) with good film-forming capacity was prepared from the corresponding aqueous dispersions. The polymer matrix was first characterized ... -
The role of nanocrystalline cellulose on the microstructure of foamed castor-oil polyurethane nanocomposites
(2015)Nanocrystalline cellulose (CNC), obtained by sulphuric acid hydrolysis, was used to synthesize polyurethane foams (PUFs) based on a functionalized castor oil polyol and a Methylene diphenyl diiso- cyanate (MDI). Formulations ... -
Nanopinturas híbridas acuosas para la protección de fachadas
(Atipat, 2015-08-01)Las fachadas de edificios, a pesar de su aparente resistencia, son vulnerables a los agentes exteriores y necesitan una protección eficaz contra la acción del medio externo. Usualmente en una primera etapa se aplican ... -
Characterization of anodes for lithium ion batteries
(Springer, 2015-08-14)The lithium-ion batteries are energy storage systems of high performance and low cost. They are employed in multiple portable devices, and these require the use of increasingly smaller and lighter batteries with high energy ... -
Electrochemical characterization of MWCNT Ni(OH)2 composites as cathode materials
(Springer, 2015-09-04)The hydrothermal method was used to synthesize multi-walled carbon nanotube/nickel hydroxide composites (MWCNT/Ni(OH)2). The structure and morphology of the prepared materials were characterized by X-ray diffraction and ... -
On the strategies for incorporating nanosilica aqueous dispersion in the synthesis of waterborne polyurethane silica nanocomposites, Effects on morphology and properties
(2016)In this work the synthesis of waterborne polyurethane/nanosilica nanocomposites by using two differ- ent strategies is presented, starting from a vinyl terminated polyurethane prepolymer (PUP) based on isophorone diisocyanate ... -
Influence of dynamic crosslinking on the morphology, crystallization, and dynamic mechanical properties of PA6,12 EVA blends
(2016)This study investigated the effect of dynamic crosslinking of polyamide 6,12 and random copolymers of ethylene and vinyl acetate blends (PA6,12/EVA) on the morphology, crystallinity, and dynamic mechanical properties. The ... -
Chitosan-graft-poly(n-butyl acrylate) copolymer Synthesis and characterization of a natural synthetic hybrid material
(2016)Two chitosan polymers with different deacetylation degree and molecular weight were subjected to graft- ing reactions with the aim to enhance the properties of these bio-based materials. Specifically, n-butyl acrylate in ... -
Starch Polyvinyl Alcohol blends containing Polyurethane as plasticizer
(2016)Starch-based films containing 70wt% of starch and a combination of poly(vinyl alcohol) and a low glass transition temperature polyurethane as plasticizer were prepared. The effect of PVA/PU ratio content on the morphology ... -
Effect of water content in the gas diffusion layer of H2 O2 PEM fuel cell
(Journal of Materials Science and Engineering, 2016)The heart of a fuel cell is the membrane-electrode assembly consisting of two porous electrodes, where the electrochemical reactions take place, and the ionomer conductive membrane, which allows the proton exchange from ... -
Efectos de la membrana de intercambio de protones en el desempeño de una celda de combustible H2 O2
(Revista Tecnología y Ciencia UTN, 2016)Una celda de combustible convierte directamente la energía química de un combustible en electricidad. Su desempeño depende de diferentes parámetros tales como el espesor de la membrana intercambiadora de protones, el ... -
Theoretical and experimental study of isothiazolinone adsorption onto ordered mesoporous silica
(Elsevier, 2016)Mesoporous silica SBA-15 particles were synthesized in order to evaluate their effectiveness asencapsulating agents for a commercial biocide composed of a mixture of methylisothiazolinone andchloromethylisothiazolinone ... -
Morphology and properties of neutralized chitosan-cellulosenanocrystals biocomposite films
(2016)Chitosan/cellulose nanocrystals (CH-CN) films were obtained by casting of dispersions, and treated with NaOH for neutralization proposes. The composition of films was varied from 1 to 10 wt.% of CN. Changes in the morphology ... -
Fibras de refuerzo en pinturas y recubrimientos : parte II
(Atipat, 2016-04-01)Establecida la naturaleza electroquímica de la mayoría de los procesos de corrosión, la tecnología de las pinturas anticorrosivas se orienta en el sentido de formular productos destinados ya sea a controlar el desarrollo ... -
Fibras de refuerzo en pinturas y recubrimientos : parte I
(Atipat, 2016-04-01)La mayoría de las tecnologías modernas requiere materiales con una combinación inusual de propiedades, imposibles de diseñar con los existentes en forma individual. Esta necesidad es muy evidente en aplicaciones espaciales, ... -
Electrochemical characterization of nickel hydroxide nanomaterials as electrodes for NiMH batteries
(Springer, 2016-08-23)β-Nickel hydroxide was successfully synthesized by a hydrothermal method. Nano-nickel hydroxide material was characterized by X-ray diffraction, infrared absorption spectroscopy, and transmission electron microscopy. They ...