Exploració per tema "Polymers--Testing"
Ara es mostren els items 1-20 de 27
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A Review of the recent advances in cyclic butylene terephthalate technology and its composites
(2016-05)
Article
Accés obertCyclic butylene terephthalate (CBT®) oligomers are a relatively new class of material and are capable of polymerizing in an entropically driven ring-opening polymerization into high-molecular-weight polymerized CBT (pCBT) ... -
Application of layered nanoparticles in the micromechanical reinforcement and flame retardancy of polymer foams
(Studium Press LLC, 2013)
Capítol de llibre
Accés restringit per política de l'editorialA 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 oriented failure modeling and characterization for polymers in automotive pedestrian protection
(CIMNE, 2015)
Text en actes de congrés
Accés obertIn the development process of automotive pedestrian protection (PedPro) for upper- and lower leg impact, the failure of polymer components plays an important role. To influence impact kinematics, fractures can either be ... -
Compression properties and cellular structure of polyurethane composite foams combining nanoclay and different reinforcements
(2014-11)
Article
Accés obertIn the present work we prepared and characterized several polyurethane (PU) composite foams by combining variable concentrations of nanoclay (montmorillonite, MMT) with metal wires or low cost cellulosic-based reinforcements, ... -
Efecto de las variables de proceso de inyección sobre la morfología de la espuma microcelular de PET-glicolizado
(2013)
Comunicació de congrés
Accés restringit per política de l'editorialLa presente publicación comprende el estudio del efecto de las variables de proceso de inyección sobre la morfología obtenida al espumar Polientilentereftalato glicolizado (PETG) con un agente espumante químico endotérmico. ... -
Efecto de las variables del proceso de inyección sobre la adhesión polímero-tela usando la técnica de decoración en molde
(2013)
Text en actes de congrés
Accés restringit per política de l'editorialEl objetivo de esta investigación es estudiar el efecto de las variables del proceso de inyección sobre la adhesión entre un material polimérico y una tela utilizando la técnica de decoración en el molde (IMD). Se usaron ... -
Effect of superelastic shape memory alloy wires on the impact behaviour of carbon fiber reinforced in situ polymerized poly(butylene terephthalate) composites
(2011-03-15)
Article
Accés restringit per política de l'editorialLow-velocity impact properties of shape memory alloy (SMA) wires and carbon fi ber reinforced poly (butylene terephthalate) obtained by resin transfer molding were characterized. At the subcritical regime the dissipated ... -
Effect of the unidirectional drawing on the thermal and mechanical properties of PLA films with different L -isomer content
(2013-02-15)
Article
Accés restringit per política de l'editorialThis work simulates the thermoforming process of two different L-isomer content PLA grades (95.6 and 98%), studying the influence on the induced morphology and the variation in the thermal and tensile properties. The ... -
Estudio de la adhesión en uniones poliméricas sobreinyectadas rígido-rígido (ABS/SAN)
(2013-11)
Article
Accés obertEl objetivo de esta investigación fue estudiar el efecto de las variables del proceso de sobre inyección sobre la resistencia de la unión adhesiva rígido–rígido entre un par de materiales poliméricos. Se emplearon como ... -
Estudio de la presión interna en el molde de inyección en la producción de materiales poliméricos microcelulares de etileno-propileno con espumación física
(2014)
Text en actes de congrés
Accés obertSe efectuó el estudio de la presión en la cavidad de un molde de inyección en dos posiciones diferentes respecto al punto de inyección para evaluar los efectos de los parámetros del proceso y la distancia de dicho punto ... -
Estudio de preparación y caracterización de espumas de polipropileno y de alcohol polivinílico con refuerzos híbridos de naturaleza celulósica, cargas minerales y nanopartículas
(Universitat Politècnica de Catalunya, 2015-06)
Treball Final de Grau
Accés obertEn las industrias punteras como son la industria aeroespacial o la industria de la automoción el uso de materiales compuestos que ofrezcan mejores prestaciones específicas está volviéndose indispensable para optimizar las ... -
Fracture behavior of quenched poly(lactic acid)
(2011-01)
Article
Accés restringit per política de l'editorialThe effect of a quenching treatment applied on heated cast sheet extruded films of two poly(lactic acid) (PLA) commercial grades, with different optical purities, was studied. The thermal and mechanical properties of the ... -
Graphene nanoplatelets as a multifunctional filler for polymer foams
(Elsevier, 2016-03)
Article
Accés obertDue to their high mechanical and transport properties, graphene-derived materials have aroused a great deal of interest in the most varied sectors. Among these, graphene nanoplatelets have been gaining interest due to the ... -
Graphene nanoplatelets-reinforced polyetherimide foams prepared by water vapor-induced phase separation
(2015-05)
Article
Accés restringit per política de l'editorialThe present work considers the preparation of medium-density polyetherimide foams reinforced with variable amounts of graphene nanoplatelets (1–10 wt%) by means of water vapor-induced phase separation (WVIPS) and their ... -
Influence of polyamide-imide concentration on the cellular structure and thermo-mechanical properties of polyetherimide/polyamide-imide blend foams
(2015-08)
Article
Accés restringit per política de l'editorialThe present work considers the preparation of medium-density polyetherimide (PEI)/polyamide-imide (PAI) blend foams by means of water vapor-induced phase separation (WVIPS) and their characterization. While pure polymer ... -
Influence of polyhedral oligomeric silsesquioxanes on thermal and mechanical properties of melt-mixed poly(methyl methacrylate)/polyhedral oligomeric silsesquioxanes composites
(2014-05-03)
Article
Accés restringit per política de l'editorialIn this study, the influence of the functionalization of fully or incomplete condensed polyhedral oligomeric silsesquioxanes composites (POSS) nanoparticles on the properties of poly(methyl methacrylate) (PMMA)-based ... -
Injection molding optimization in order to improve the dispersion of the nanoclays
(Universitat Politècnica de Catalunya, 2018-05)
Projecte Final de Màster Oficial
Accés obertInjection molding is the most commonly manufacturing process used for the fabrication of plastic parts. Different products can be manufactured using injection molding which vary greatly in their size, complexity and ... -
Medical Applications of Materials Manufactured by the AM Process
(Universitat Politècnica de Catalunya, 2022-02-07)
Treball de recerca tutelat
Accés obertThe use of 3D printing for manufacturing parts has made it possible to produce components with complex geometries according to drawings made on the computer. 3D printing offers many advantages in the manufacture of polymers ... -
Morphology and mechanical characterization of ABS foamed by microcellular injection moulding
(2015)
Text en actes de congrés
Accés restringit per política de l'editorialIn the present work ABS was used to inject cylindrical test bars, obtaining solid and foamed especimens. By varying the gas content, two levels of weight reduction were achieved. Morphology analysis revealed the presence ... -
Polyimides
(2015-12-22)
Capítol de llibre
Accés restringit per política de l'editorial