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Listar por palabra clave "Poly(lactic acid)"

Mostrando ítems 1-20 de 29

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A new bio-based fibre-reinforced polymer obtained from sheep wool short fibres and PLA

Fernando Aldas Carrasco, Miguel; Rouault, Nicolas Jerome; Ferri Azor, Jose Miguel; López-Martínez, Juan; Samper Madrigal, María-Dolores (ICE Publishing Ltd., 2020-06)

[EN] Within the cheese industry is used the milk of a specific species of sheep whose wool is not suitable for the fibre industry. Therefore, this fibre becomes a waste by-product. To take advantage of this waste, the ...
Axonal extension from dorsal root ganglia on fibrillar and highly aligned poly(lactic acid)-polypyrrole substrates obtained by two different techniques: Electrospun nanofibres and extruded microfibres

Gisbert-Roca, Fernando; Más Estellés, Jorge; Monleón Pradas, Manuel; Martínez-Ramos, Cristina (Elsevier, 2020-11-15)

[EN] The biological behaviour of Schwann cells (SCs) and dorsal root ganglia (DRG) on fibrillar, highly aligned and electroconductive substrates obtained by two different techniques is studied. Mats formed by nanometer-sized ...
Bacterial cellulose nanowhiskers to enhance the properties of plastics and bioplastics of interest in food packaging

Martínez Sanz, Marta (Universitat Politècnica de València, 2013-07-01)

El presente trabajo tiene por objetivo estudiar las aplicaciones de los nanocristales o ¿nanowhiskers¿ extraídos mediante hidrólisis ácida de celulosa bacteriana (BCNW) para el desarrollo de materiales poliméricos y ...
Combined effect of poly(hydroxybutyrate) and plasticizers on polylactic acid properties for film intended for food packaging

ARRIETA, Marina Patricia; Samper Madrigal, María Dolores; López Martínez, Juan; JIMENEZ MIGALLON, ALFONSO (Springer Verlag (Germany), 2014-12)

Poly(lactic acid) PLA, and poly(hydroxybutyrate) PHB, blends were processed as films and characterized for their use in food packaging. PLA was blended with PHB to enhance the crystallinity. Therefore, PHB addition strongly ...
Correlación entre las propiedades macro, micro y nanomecánicas en polímeros termoplásticos biodegradables

Arrieta, Marina Patricia; Ferrándiz Bou, Santiago; López Martínez, Juan; Rayón Encinas, Emilio (Universitat Politècnica de Valencia, 2016-07-24)

[EN] In this work a study of the mechanical properties of a biodegradable polymer, poly(lactic acid) (PLA), and its variation due to the addition of 25 wt % of another biodegradable polymer, poly(hydroxybutyrate) (PHB) ...
Degradation of a mechanically recycled polylactide/halloysite nanocomposite in an ethanolic food simulant

Beltrán, Freddys R.; Arrieta, Marina P.; Hortal, Yaiza; Gaspar, Gerald; de la Orden, Mª Ulagares; Martínez Urreaga, Joaquín (Universitat Politècnica de València, 2021-07-16)

[EN] This work aims to study the effect of immersion in a ethanolic food simulant in mechanically recycled poly(lactic acid) (PLAR) and its nanocomposites reinforced with halloysite nanotubes (HNT). PLAR was obtained by ...
Desarrollo y optimización de nuevas formulaciones de biopolímeros con principios activos para aplicaciones en el sector envase-embalaje

Rojas Lema, Sandra Paola (Universitat Politècnica de València, 2023-01-23)

[ES] Esta tesis doctoral tuvo como objetivo principal el estudio, desarrollo y caracterización de nuevos materiales poliméricos mediante el uso de diferentes matrices poliméricas de origen natural y biodegradables, así ...
Development of a novel pyrolysis-gas chromatography/mass spectrometry method for the analysis of poly(lactic acid) thermal degradation products

ARRIETA, Marina Patricia; Parres, F.; López Martínez, Juan; Jiménez, Alfonso (Elsevier, 2013-05)

Thermal degradation of PLA is a complex process since it comprises many simultaneous reactions. The use of analytical techniques, such as differential scanning calorimetry (DSC) and thermogravimetry (TGA), yields useful ...
Disintegrability under composting conditions of plasticized PLA-PHB blends

Arrieta, Marina Patricia; López Martínez, Juan; Rayón Encinas, Emilio; Jiménez, A. (Elsevier, 2014-10)

The disintegration under composting conditions of films based on poly(lactic acid) poly(hydroxybutyrate) (PLA-PHB) blends and intended for food packaging was studied. Two different plasticizers, poly(ethylene glycol) (PEG) ...
Efect of Different Compatibilizers on Injection-Molded Green Fiber-Reinforced Polymers Based on Poly(lactic acid)-Maleinized Linseed Oil System and Sheep Wool

Pawlak, Franciszek; Aldas-Carrasco, Miguel Fernando; López-Martínez, Juan; Samper, María-Dolores (MDPI AG, 2019-09)

[EN] A method to modify polymers is that of introducing fibers in a matrix to produce a fiber-reinforced polymer (FRP). Consequently, the aim of this work was to study the compatibility effect of four coupling agents on ...
Effect of different compatibilizers on environmentally friendly composites from poly(lactic acid) and diatomaceous earth

Agüero-Rodríguez, Ángel; Quiles-Carrillo, Luis; Jorda-Vilaplana, Amparo; Fenollar, Octavio; Montanes, Nestor (John Wiley & Sons, 2019)

[EN] Environmentally friendly composites from poly(lactic acid) (PLA) and diatomaceous earth (DE) were successfully manufactured by extrusion, followed by injection moulding. DE was used as a filler; several compatibiliz ...
Effect of the chain length of geraniol esters on the plasticization efficiency with poly(lactide)

Gómez-Caturla, Jaume; Ivorra-Martinez, Juan; Tejada-Oliveros, Ramón; Moreno-García, Virginia; Garcia-Garcia, Daniel; Balart, Rafael (Elsevier, 2024-01-05)

[EN] This work reports on the development of environmentally friendly PLA formulations utilizing different esters derived from geraniol as plasticizers. Geranyl formate, acetate, propionate, butyrate, isovalerate and ...
Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolization

Tampau, Alina; González Martínez, María Consuelo; Vicente, Antonio A.; Chiralt Boix, Mª Amparo (Springer-Verlag, 2020-07)

[EN] Poly(lactic acid) (PLA) and poly(vinyl alcohol) (PVA) present complementary barrier properties, and their combination in multilayer assemblies (laminates) could provide materials with more effective barrier capacity ...
Foaming of 3D-Printed PLA/CaCO3 Composites by Supercritical CO2 Process for Sustainable Food Contact Materials

Faba, Simón; Agüero, Ángel; Arrieta, Marina P.; Martínez, Sara; Romero, Julio; Torres, Alejandra; Galotto, María José (MDPI AG, 2024-03)

[EN] In the last decade, among the emerging technologies in the area of bioplastics, additive manufacturing (AM), commonly referred to as 3D printing, stands out. This technology has gained great interest in the development ...
Influence of plasticizers on thermal properties and crystallization behaviour of poly(lactic acid) films obtained by compression moulding

Muller, Justine; Jiménez Marco, Alberto; González Martínez, María Consuelo; Chiralt, A. (John Wiley & Sons, 2016)

[EN] Neat and plasticized poly(lactic acid) (PLA) films were obtained by compression moulding. Three different plasticizers, at concentrations of 5 and 10%, were used: poly(ethylene glycol) (PEG) of 1000 and 4000gmol(-1) ...
Manufacturing and Characterization of Functionalized Aliphatic Polyester from Poly(lactic acid) with Halloysite Nanotubes

Montava-Jorda, Sergi; Chacon, Victor; Lascano-Aimacaña, Diego Sebastián; Sanchez-Nacher, Lourdes; Montanes, Nestor (MDPI AG, 2019-08)

[EN] This work reports the potential of poly(lactic acid)-PLA composites with different halloysite nanotube (HNTs) loading (3, 6 and 9 wt%) for further uses in advanced applications as HNTs could be used as carriers for ...
Manufacturing and characterization of poly(lactic acid) composites with hydroxyapatite

Ferri, J.M.; Jordà Sempere, José Jorge; Montanes, Nestor; Fenollar, Octavio; Balart, Rafael (John Wiley & Sons, 2017)

[EN] Hydroxyapatite (HA), a naturally occurring calcium orthophosphate, possesses the most similar chemical composition to human bone. In this research work, composite materials were prepared using poly(lactic acid) (PLA) ...
Manufacturing and compatibilization of PLA/PBAT binary blends by cottonseed oil-based derivatives

Carbonell-Verdu, A.; Ferri, J.M.; Dominici, F.; Boronat, Teodomiro; Sanchez-Nacher, Lourdes; Balart, Rafael; Torre, L. (Department of Polymer Engineering Budapest University of Technology & Economics), Scientific Society of Mechanical Engineerin, 2018-09)

[EN] This research work aims at the compatibilization of poly(lactic acid)/poly(butylene adipate-co-terephthalate), PLA/PBAT binary blends by using cottonseed oil derivatives, i.e. epoxidized (ECSO) and maleinized (MCSO) ...
Multifunctional PLA Blends Containing Chitosan Mediated Silver Nanoparticles: Thermal, Mechanical, Antibacterial, and Degradation Properties

Sonseca Olalla, Agueda; Madani, Salim; Rodríguez, Gema; Hevilla, Víctor; Echeverría, Coro; Fernández-Garcia, Marta; Muñoz-Bonilla, Alexandra; Charef, Noureddine; López, Daniel (MDPI AG, 2020-01)

[EN] Poly(lactic acid) (PLA) is one of the most commonly employed synthetic biopolymers for facing plastic waste problems. Despite its numerous strengths, its inherent brittleness, low toughness, and thermal stability, as ...
Multifunctional PLA PHB/cellulose nanocrystal films: Processing, structural and thermal properties

ARRIETA, Marina Patricia; Fortunati, E.; Dominici, F.; Rayón Encinas, Emilio; López Martínez, Juan; Kenny, J. M. (Elsevier, 2014-07-17)

Cellulose nanocrystals (CNCs) synthesized from microcrystalline cellulose by acid hydrolysis were added into poly(lactic acid)-poly(hydroxybutyrate) (PLA-PHB) blends to improve the final properties of the multifunctional ...