Exploració per tema "Poliuretans"

Ara es mostren els items 21-34 de 34

    • Poly(butylene succinate) ionomers and their use as compatibilizers in nanocomposites 

      Bautista, Mayka; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Alla Bedahnane, Abdelilah; Muñoz Guerra, Sebastián (2016-09-01)
      Article
      Accés obert
      A series of low-molecular-weight poly(butylene succinate-co-glutarate-co-2-trimethylammonium chloride glutarate) terpolyester ionomers containing 35% mol of total glutarate units but varying in the content of charged units ...

    • Polysilane cross-linked binders for aqueous finishing 

      Ollé Otero, Lluís; Shendryck, Alexander; Combalia Cendra, Felip; Jorge Sánchez, Juan; Bacardit Dalmases, Anna (2010-06-17)
      Article
      Accés restringit per política de l'editorial
      This study explores the cross-linking reaction between an epoxy functional alkoxysilane and both the leather industry, it can be used in finishing processes. A comparison of results indicates that such cross-linker presents ...

    • Polyurethane foams doped with stable silver nanoparticles as bactericidal and catalytic materials for the effective treatment of water 

      Domènech Garcia, Berta; Ziegler Benítez, Kharla; Vigués Frantzen, Núria; Olszewski, Wojciech; Marini, Carlo; Mas Gordi, Jordi; Muñoz Tapia, Maria; Muraviev, Dmitri N.; Macanás de Benito, Jorge (2016-02-19)
      Article
      Accés obert
      The development of reusable dual-purpose nanocomposite foams for catalytic and bactericidal water treatment is reported. Small non-aggregated silver nanoparticles were made using Intermatrix Synthesis inside a polyurethane ...

    • Polyurethane foams from renewable and sustainable polyols 

      Finez Acero, Noemi (Universitat Politècnica de Catalunya / Universidade Técnica de Lisboa, 2013)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Realitzat a/amb:   Universidade de Lisboa
      The aim of this thesis is the production of polyurethane foams with polyols from liquefied wood. The objective is to find the best combination of appropriate properties to polyurethane foams with maximum content of polyols ...

    • Polyurethane shape memory filament yarns: Melt spinning, carbon-based reinforcement, and characterization 

      González Bertran, Judit; Ardanuy Raso, Mònica; Gonzalez Colominas, Marta; Rodriguez, Rosa; Jovancic, Petar (2022-07-26)
      Article
      Accés obert
      The aim of this work was to develop and characterize polyurethane-based shape memory polymer filament yarns of a suitable diameter and thermo-mechanical performance for use in tailored multi-sectorial applications. Different ...

    • Reducció de les emissions d'amines en espumes de poliuretà 

      Faixedas Puig, Marc (Universitat Politècnica de Catalunya, 2009-07)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      Les espumes de poliuretà s’utilitzen des de fa dècades per a la fabricació de gran varietat de béns de consum. En la polimerització del poliuretà s’usen com a materials de partida poliols i poliisocianats, tot i que també ...

    • Research on the study of polyurethane materials as a means of mitigating seismically induced damage in bridges 

      Serra Moll, Miquel Àngel (Universitat Politècnica de Catalunya, 2017-06-16)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   University of Colorado Boulder
      This work consists in testing the Polyurethane Materials Elastocore and Elastocast in order to obtain their mechanical properties. The main objective is to determine if they can be used as flexible joints in bridge columns ...

    • Rigid composite bio-based polyurethane foams: from synthesis to LCA analysis 

      Recupido, Federica; Lama, Giuseppe C.; Ammendola, Mario; De Lucca Bossa, Ferdinando; Minigher, Andrea; Campaner, Pietro; Morena Gatius, Ángela Gala; Tzanov, Tzanko; Ornelas, Mariana; Barros, Ana; Gomes, Filipa; Bouça, Veronica; Malagueiro, Regina; Sanchez, Monica; Martinez, Eva; Sorrentino, Luigi; Boggioni, Laura; Perucca, Massimo; Anegalla, Sridhar; Marzella, Roberta; Moimare, Pierluigi; Verdolotti, Letizia (Elsevier, 2023-01)
      Article
      Accés restringit per política de l'editorial
      Our current industrial ammonia cycle is far from being sustainable – while intense energy is required to produce ammonia – almost half of it ends up in wastewater treatment plants (WWTPs) where is finally transformed and ...

    • Síntesis de bio-elastómeros de uretano y urea curados con di(metiltio)-2,4-toluendiamina, agente curante alternativo a la MOCA 4,4'-metilenbis(2-cloroanilina) 

      Torres Francin, Jorge (Universitat Politècnica de Catalunya, 2015-10)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat

    • Síntesis y caracterización de poliuretanos derivados de la glucosa para aplicaciones como recubrimientos sostenibles 

      Garcia Mestre, Mónica (Universitat Politècnica de Catalunya, 2017-09-13)
      Treball Final de Grau
      Accés obert
      En este proyecto se han sintetizado poliuretanos segmentados de 1,4-butanodiol y diisocianato de hexametileno empleando como segmento “flexible” un poliéster bicíclico derivado de la glucosa y se ha puesto de manifiesto ...

    • Síntesis, caracterización y validación aplicativa de un poliuretano bio-basado en dispersión acuosa para el sector de recubrimientos textiles 

      Lacruz Cruz, Amado; Salvador Ibañez, Mireia; Aliaga, Josep; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon (Asociación Española de Químicos y Coloristas Textiles, 2019-10-01)
      Article
      Accés obert
      En este trabajo se ha sintetizado un poliuretano en dispersión acuosa (WPU) a partir de poli-1,3-propilenglicol (PO3G) y un dímero-diol (Pripol 2033) ambos procedentes de fuentes 100% renovables, diisocianato de isoforona ...

    • Study of coatings based on polyisocyanates of moisture cure depending on its resins and water scavengers 

      Farras Gutierrez, Hector (Universitat Politècnica de Catalunya, 2013-06)
      Projecte Final de Màster Oficial
      Accés obert
      Hempel Coatings Company have into products assortment a group of paints which is based on isocyanate pre-polymer resins which cure with moisture forming a coating based on polyurea. These paints are called 1 component ...

    • Synthesis and characterization of new bio-based poly(acylhydrazone) vanillin vitrimers 

      Roig Gibert, Adriá; Petrauskaité, Aina; Ramis Juan, Xavier; Flor López, Sílvia de la; Serra Albet, Maria Àngels (Royal Society of Chemistry (RSC), 2022-02-17)
      Article
      Accés restringit per política de l'editorial
      New acylhydrazone vitrimeric-type materials have been studied. These materials can be efficiently relaxed, without the addition of an external catalyst, through an exchange process that has been confirmed as imine metathesis, ...

    • Test and validation of a hybrid and multi-material 3D printer to mimic soft living tissues 

      Jorand, Léo (Universitat Politècnica de Catalunya, 2021-02-12)
      Projecte Final de Màster Oficial
      Accés obert
      For the purposes of developing a multi material 3D printer, hybrid to the Fused Filament Fabrication (FFF) and Direct Ink Writing (DIW) technologies, to mimic living tissues, the 3D printing of soft Thermoplastic ...