Browsing by Author "Velasco Perero, José Ignacio"
Now showing items 1-20 of 135
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Active edible films based on arrowroot starch with microparticles of blackberry pulp obtained by freeze-drying for food packaging
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-08-23)
Article
Open AccessThis research work evaluated the influence of the type of incorporation and variation in the concentration of blackberry pulp (BL) and microencapsulated blackberry pulp (ML) powders by freeze-drying on the chemical and ... -
Antimicrobial activity and gc-ms profile of copaiba oil for incorporation into xanthosoma mafaffa schott starch-based films
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-12-01)
Article
Open AccessThe present study evaluated the effect of the incorporation of copaiba oil, in direct and in microencapsulated form, into films based on Xanthosoma mafaffa Schott starch. Initially, the characterization of copaiba oil by ... -
Aplicación de la Mecánica de la Fractura Post-Cedencia a Polímeros
(2010-07-30)
Article
Restricted access - publisher's policyLa técnica del trabajo esencial de fractura (EWF) se ha utilizado en la caracterización a fractura de materiales que desarrollan una amplia ductilidad y donde ocurre una completa cedencia antes del inicio de la propagación ... -
Application of layered nanoparticles in the micromechanical reinforcement and flame retardancy of polymer foams
(Studium Press LLC, 2013)
Part of book or chapter of book
Restricted access - publisher's policyA great deal of attention has been given in the last years to the study of the influence of incorporating nanosized particles and particularly nanoparticles with a flat-like morphology such as nanoclays or layered double ... -
Application of the Box–Behnken experimental design for the extraction of phenolic compounds from araçá-roxo (Psidium myrtoides)
(John Wiley & sons, 2021-01-09)
Article
Restricted access - publisher's policyThe purpose of this study was to investigate the bioactive compounds of araçá-roxo by applying the Box–Behnken experimental design to evaluate the effect of temperature, time, and ethanol concentration on the extraction ... -
Assessment of the conditions of the thermoplastic extrusion process in the bioactive and mechanical properties of flexible films based on starch and Brazilian pepper
(2018)
Conference lecture
Open AccessThe objective of this work was to produce, through the thermoplastic extrusion process followed by blowing, manioc starch-based flexible films added with Brazilian pepper oil as an antioxidant and plasticizer agent, and ... -
Bioactive edible films based on arrowroot starch incorporated with cranberry powder: microstructure, thermal properties, ascorbic acid content and sensory analysis
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-10-11)
Article
Open AccessThe growing global awareness about environmental preservation has stimulated the search for alternatives to replace conventional plastics made from fossil sources. One of the advantages is using polymers from renewable ... -
Broad-band electrical conductivity of carbon nanofibre-reinforced polypropylene foams
(2011)
Article
Restricted access - publisher's policyThe influence of foaming a semi-crystalline polymer reinforced with different concentrations of carbon nanofibres (0–20 wt.%) on the formation of an electrically conductive network was studied at room temperature using an ... -
Caracterización mecánica de espumas rígidas multifuncionales de poliuretano
(2011)
Conference report
Open AccessEn el presente trabajo se prepararon y caracterizaron espumas de poliuretano con refuerzo multi-escalar combinando concentraciones variables de arcilla organofílica (montmorillonita) y de lana de esparto, con el propósito ... -
Caracterización mecánica, térmica y a fuego de aerogeles arcilla/polímero modificados con partículas
(2013)
Conference report
Open AccessLos aerogeles son una clase de materiales que se caracteriza por su extrema ligereza y alto contenido de aire. En este trabajo se han preparado diferentes aerogeles polímero/arcilla (PVOH/Na+-MMT) mediante un proceso simple ... -
Characterization of flame retardant polypropylene-magnesium hydroxide composite foams
(2009)
Conference lecture
Restricted access - publisher's policyMagnesium hydroxide filled polypropylene foams have been prepared in order to analyze the foaming effects on the microstructure, flame and thermo-mechanical beaviour of the polypropylene composites. Several load percentages ... -
Characterization of highly filled magnesium hydroxide-polypropylene composite foams
(2011)
Article
Restricted access - publisher's policyMagnesium hydroxide—filled polypropylene foams were prepared by a compression-molding chemical foaming process and studied considering the effects of foaming and the presence of the particles on the microstructure (cellular ... -
Characterization of poly(ethylene-co-vinyl acetate) (EVA) filled with low grade magnesium hydroxide
(2008)
Article
Restricted access - publisher's policyLow-grade magnesium hydroxide (LG-MH) is a solid by-product that undergoes an endothermic decomposition in the temperature range of 300–750 C. Due to its thermal behaviour and its lower cost relative to pure Mg(OH)2, ... -
Characterization of polycarbonate foam structures prepared by one-step SC-CO2 dissolution process
(2012)
Conference lecture
Open AccessIn this communication polycarbonate foams were prepared by a supercritical CO2 dissolution one-step batch foaming process. Firstly, CO2 diffusion behavior in polycarbonate was studied by means of desorption experiments. ... -
Characterization of rigid polypropylene-based microcellular foams produced by batch foaming processes
(2011)
Article
Restricted access - publisher's policyThe properties of polypropylene (PP) foams can be extended by controlling the cellular structure and adding functional fillers. PP-based microcellular foams having an interesting combination of mechanical and transport ... -
CIÈNCIA I TECNOLOGIA DELS MATERIALS (2n quadrimestre, 1r parcial)
(Universitat Politècnica de Catalunya, 2011-04-05)
Exam
Restricted access to the UPC academic community -
CIÈNCIA I TECNOLOGIA DELS MATERIALS (Examen 1r quadrimestre, 1r parcial)
(Universitat Politècnica de Catalunya, 2011-11-03)
Exam
Restricted access to the UPC academic community -
CIÈNCIA I TECNOLOGIA DELS MATERIALS (Examen 2n quadrimestre, 2n parcial)
(Universitat Politècnica de Catalunya, 2011-06-17)
Exam
Restricted access to the UPC academic community -
Comportamiento a fractura de dos grados comerciales PLA: influencia de la estructura cristalina
(2010)
Conference report
Restricted access - publisher's policyEn este trabajo se ha estudiado el efecto de un tratamiento de rejuvenecimiento aplicado a láminas obtenidas por extrusión-calandra a partir de dos grados comerciales de PLA, con diferentes purezas ópticas. Se han evaluado ... -
COMPORTAMIENTO A FRACTURA DE FILMS DE NANOCOMPUESTOS DE UN COPOLÍMERO EVOH
(2006)
Conference report
Restricted access - publisher's policySe analizó el comportamiento a fractura de films de nanocompuestos de un copolímero EVOH con diferentes porcentajes en peso de dos tipos de arcillas montmorillonitas. Los nanocompuestos fueron obtenidos a través de ...
