Exploració per tema "Polylactic acid"

Ara es mostren els items 21-40 de 53

    • Estudi de la incidència d'additius en la cristal·linitat de l'àcid polilàctic 

      Cruells Llonch, Sergi (Universitat Politècnica de Catalunya, 2014-06-25)
      Treball Final de Grau
      Accés restringit per decisió de l'autor

    • Estudio de la influencia del proceso de fabricación en las propiedades mecánicas de especímenes modelados por deposición fundida 

      Traver Ramos, Oriol (Universitat Politècnica de Catalunya, 2019-06)
      Projecte Final de Màster Oficial
      Accés obert
      El presente proyecto ha tenido como objetivo analizar la respuesta de las propiedades mecánicas de especímenes de ácido poliláctico (PLA) fabricados por modelado por deposición fundida. Se ha estudiado la influencia de ...

    • Free-standing flexible and biomimetic hybrid membranes for ions and ATP transport 

      Molina García, Brenda Guadalupe; Lopes Rodrigues, Maximilien; Estrany Coda, Francesc; Michaux, Catherine Anne Gisèle; Perpète, Eric A.; Armelín Diggroc, Elaine Aparecida; Alemán Llansó, Carlos (2020-03-01)
      Article
      Accés obert
      The transport of metabolites across robust, flexible and free-standing biomimetic membranes made of three perforated poly (lactic acid) (pPLA) layers, separated by two anodically polymerized conducting layers of poly ...

    • Funcionalización de fibras de PLA con Elastina como Recombinante (ELR) para su uso como piel artificial 

      Bourgois, Tabatha (Universitat Politècnica de Catalunya, 2014-02)
      Projecte/Treball Final de Carrera
      Accés obert
      Hoy en día, la ingeniería tisular se dedica a desarrollar nuevos tipos de andamiajes (del inglés “scaffolds”) con el fin de curar una zona dañada y así aumentar el bienestar de los pacientes heridos al reducir el dolor y ...

    • High-resolution PLA-based composite scaffolds via 3-D printing technology 

      Serra, Tiziano; Planell Estany, Josep Anton; Navarro Toro, Melba Eugenia (2013-03)
      Article
      Accés restringit per política de l'editorial
      Fabrication of new biodegradable scaffolds that guide and stimulate tissue regeneration is still a major issue in tissue engineering approaches. Scaffolds that possess adequate biodegradability, pore size, interconnectivity, ...

    • Hybrid polypeptide/polylactide copolymers with short phenylalanine blocks 

      Mayans Tayadella, Enric; Murase Fernández, Sara Keiko; Pérez Madrigal, Maria del Mar; Cativiela, Carlos; Alemán Llansó, Carlos; Puiggalí Bellalta, Jordi (2018-07-29)
      Article
      Accés obert
      Hybrid copolymers constituted by short l-phenylalanine (Phe) blocks (i.e., Phen with n ranging from 2 to 25) and l-lactide blocks of different length are synthesized and characterized. The diblock structure is obtained by ...

    • Influence of chemical composition of Brazilian organoclays on the morphological, structural and thermal properties of PLA-organoclay nanocomposites 

      Lopes Alves, Jefferson; De Tarso Viera e Rosa, Paulo; Redondo Realinho, Vera Cristina de; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio; Morales, Ana Rita (2019-07-17)
      Article
      Accés restringit per política de l'editorial
      The effects of adding different Brazilian organoclays, containing di-(hydrogenated tallow) dimethyl ammonium chloride (HTA), trihexyl tetradecyl phosphonium chloride (TDP), di(alkyl ester) dimethyl ammonium chloride (EA) ...

    • Laccase/TEMPO-mediated graft hydrophobization of jute fibers to enhance the mechanical properties of jute/PLA composites 

      Dong, Aixue; Teklu, Kidanu Masho; Wang, Weiming; Fan, Xuerong; Wang, Qiang; Ardanuy Raso, Mònica; Dong, Zhen (2022-01)
      Article
      Accés restringit per política de l'editorial
      In this work, the hydrophobization of lignocellulosic jute fibers was achieved via the laccase/TEMPO-mediated grafting of octadecylamine (OA) on their surface, with the aim to improve the interfacial compatibility with ...

    • Melt-processing of cellulose nanofibril/polylactide bionanocomposites via a sustainable polyethylene glycol-based carrier system 

      Cailloux, Jonathan; Raquez, Jean-Marie; Lo Re, Giada; Santana Pérez, Orlando Onofre; Bonnaud, Leila; Dubois, Philippe; Maspoch Rulduà, M. Lluïsa (2019-08-10)
      Article
      Accés obert
      Considering the appealing need for an industrially viable approach, this works aims at demonstrating the rapid and easy melt processing of Polylactide (PLA) bio-composites reinforced with cellulose nanofibrils (CNF). For ...

    • Modificación de las propiedades del ácido Poliláctico (PLA) 

      Sáez Morales, Ariel Eduardo (Universitat Politècnica de Catalunya, 2013-04)
      Projecte/Treball Final de Carrera
      Accés obert
      En el proyecto que aquí se presenta se ha realizado un estudio y diferentes ensayos con el objetivo de ver como quedan afectadas las propiedades del Ácido Poliláctico (PLA). El PFC se centra en la modificación de las ...

    • Multivariate identification of extruded PLA samples from the infrared spectrum 

      Riba Ruiz, Jordi-Roger; Cantero, Rosa; García Masabet, Violeta del Valle; Cailloux, Jonathan; Canals, Trini; Maspoch Rulduà, M. Lluïsa (Springer, 2020-01)
      Article
      Accés obert
      Polylactic acid (PLA) is a biodegradable thermoplastic polymer that is presented as a good alternative to petroleum-derived plastics. Some of the major drawbacks of this material are its lack of thermal stability and rapid ...

    • Nanocomposites based on chain extended poly(l-lactic acid)/carboxylated carbon nanotubes: crystallization kinetics and lamellar morphology 

      Yousefzade, Omid; Franco García, María Lourdes; Nami, Mahsa; Puiggalí Bellalta, Jordi; Garmabi, Hamid (2019-06-01)
      Article
      Accés obert
      Isothermal and nonisothermal crystallization kinetics of poly(l-lactide) and its nanocomposites with different multiwalled carbon nanotubes (i.e., pristine and functionalized) were investigated. The effects of chain extension ...

    • Obtenció de materials estereocomplexes de PLA i estudi de propietats 

      Postius Artesero, Xavier (Universitat Politècnica de Catalunya, 2018-01-18)
      Treball Final de Grau
      Accés obert
      L’àcid polilàctic o PLA és un polièster termoplàstic que s’ha estudiat durant més de quaranta anys, en l’àmbit científic i industrial, ja que presenta bones propietats d’enginyeria. La seva característica més interessant ...

    • Oxygen plasma treated thermoplastics as integrated electroresponsive sensors 

      Fontana Escartín, Adrián; Lanzalaco, Sonia; Zhilev, Georgi; Armelín Diggroc, Elaine Aparecida; Bertran Cànovas, Òscar; Alemán Llansó, Carlos (Elsevier, 2024-03-01)
      Article
      Accés restringit per política de l'editorial
      Polypropylene (PP), thermoplastic polyurethane (TPU), polyethylene terephthalate glycol (PETG) and polylactic acid (PLA) 3D printed specimens, which are intrinsically non-electroresponsive materials, have been converted ...

    • PLA-based foams: tissue engineering 

      Velasco Perero, José Ignacio; Antunes, Marcelo de Sousa Pais (2015-04-02)
      Capítol de llibre
      Accés restringit per política de l'editorial
      Biodegradable porous scaffolds with or without bioactive molecules prepared by clean techniques attract an enormous interest for tissue engineering applications. Scaffolds work as structural support for both cell ...

    • PLA/SiO2 composites: influence of the filler modifications on the morphology, crystallization behaviour and mechanical properties 

      Bin Raja-Nazri, Raja Nazrul Hakim; Cailloux, Jonathan; Santana Pérez, Orlando Onofre; Bou Serra, Jordi; Sánchez Soto, Miguel; Odent, Jeremy; Raquez, Jean-Marie; Dubois, Philippe; Carrasco Alonso, Félix Ángel; Maspoch Rulduà, M. Lluïsa (Wiley, 2017-06-14)
      Article
      Accés obert
      Films of an architecturally modified poly(lactic acid) (PLAREx) with three different types of fumed silica nanofillers (SiO2) were processed through reactive extrusion-calendering in a pilot plant. The effects of the SiO2 ...

    • Polímeros compuestos con memória de forma a base de PLA 

      Ocon Payes, Guillermo (Universitat Politècnica de Catalunya, 2021-10-22)
      Treball Final de Grau
      Accés obert
      En aquest treball s’estudien y caracteritzen compostos amb base de PLA (àcid polilàctic) i la seva propietat de memòria de forma, per a realitzar la impressió d’una peça en 4D que sigui capaç d’adaptar-se y modelar la seva ...

    • Poly(e-caprolactone) films reinforced with chlorhexidine loaded electrospun polylactide microfibers 

      Márquez Lobato, Yolanda; Graupera, J.; Valle Mendoza, Luis Javier del; Turón Dols, Pau; Franco, L.; Puiggalí Bellalta, Jordi (2017)
      Article
      Accés obert
      Poly(e-caprolactone) (PCL) films reinforced with polylactide (PLA) microfibers were prepared by two methodologies: a) melt pressing of an electrospun PLA mat between two PCL films, and b) melt pressing of a co-electrospun ...

    • Poly(epsilon-caprolactone) films reinforced with chlorhexidine loaded electrospun polylactide microfibers 

      Márquez Lobato, Yolanda; Graupera, J.; Valle Mendoza, Luis Javier del; Turón Dols, Pau; Franco, L.; Puiggalí Bellalta, Jordi (2017-09-01)
      Article
      Accés obert
      Poly(e-caprolactone) (PCL) films reinforced with polylactide (PLA) microfibers were prepared by two methodologies: a) melt pressing of an electrospun PLA mat between two PCL films, and b) melt pressing of a co-electrospun ...

    • Poly-L/DL-lactic acid films functionalized with collagen IV as carrier substrata for corneal epithelial stem cells 

      de la Mata Sampedro, Ana; Mateos Timoneda, Miguel Ángel; Nieto Miguel, Teresa; Galindo de la Rosa, Sara; López Paniagua, Marina; Planell Estany, Josep Anton; Engel López, Elisabeth; Calonge Cano, Margarita (2019-05-01)
      Article
      Accés obert
      Limbal epithelial stem cells (LESCs) are responsible for the renewal of corneal epithelium. Cultivated limbal epithelial transplantation is the current treatment of choice for restoring the loss or dysfunction of LESCs. ...