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Beltrán González, Freddys ; Orden Hernández, María Ulagares de la ; Martínez Urreaga, Joaquín | Springer US | 2018From an environmental point of view, mechanical recycling is, in general, a good end-of-life option for poly(lactic acid) (PLA), one of the most important biobased polymers. However, the degradation of PLA during the service life and, especially[...]texto impreso
Chomachayi, Masoud Dadras ; Jalali Arani, Azam ; Beltrán González, Freddys ; Orden Hernández, María Ulagares de la ; Martínez Urreaga, Joaquín | Springer Verlag | 2020-02-24Recently, the use of natural materials has grown in the plastics industry. In this study, novel bio-nanocomposites were developed from poly(lactic acid)/poly(?-caprolactone) (PLA/PCL) blends and silk fibroin nanoparticles (SFNP). SFNP were succe[...]texto impreso
Orden Hernández, María Ulagares de la ; Pascual, Davinia ; Muñoz, Cristina ; Lorenzo Esteban, Vicente ; Martínez Urreaga, Joaquín | John Wiley & Sons, Ltd | 2014-03-05The addition of small amounts of organoclays during the reprocessing of waste polycarbonates (WPCs) is a promising method for improving the properties of the recycled plastics. However, the clays can also induce the degradation of the polymer du[...]texto impreso
Beltrán González, Freddys ; Lorenzo Esteban, Vicente ; Orden Hernández, María Ulagares de la ; Martínez Urreaga, Joaquín | Elsevier Ltd. | 2016-11The growing production of poly(lactic acid) (PLA) has increased the interest for the mechanical recycling of this polymer. The main objective of this work is to study the effect of different mechanical recycling processes on the hydrolytic degra[...]texto impreso
Beltrán González, Freddys ; Arrieta Dillon, Marina Patricia ; Gaspar Roa, Gerald Manuel ; Orden Hernández, María Ulagares de la ; Martínez Urreaga, Joaquín | MDPI | 2020-07-29In this work, yerba mate nanoparticles (YMNs) were extracted from Ilex paraguairiencis yerba mate wastes and further used to improve the overall performance of mechanically recycled PLA (PLAR). Recycled PLA was obtained by melt reprocessing PLA [...]texto impreso
Beltrán González, Freddys ; Lorenzo Esteban, Vicente ; Acosta, Juan ; Orden Hernández, María Ulagares de la ; Martínez Urreaga, Joaquín | Elsevier | 2017-05-17The aim of this work is to study the effects of different simulated mechanical recycling processes on the structure and properties of PLA. A commercial grade of PLA was melt compounded and compression molded, then subjected to two different recy[...]texto impreso
Beltrán González, Freddys ; Climent Pascual, Esteban ; Orden Hernández, María Ulagares de la ; Martínez Urreaga, Joaquín | Elsevier Ltd. | 2020-01Poly(lactic acid) (PLA) is one of the most important alternatives to fossil-fuel based polymers due to its biodegradability and good properties. However, the growing production along with the increasing resistance to degradation of the newer gra[...]texto impreso
Beltrán González, Freddys ; Ortega, E. ; Solvoll, A. M. ; Lorenzo Esteban, Vicente ; Orden Hernández, María Ulagares de la ; Martínez Urreaga, Joaquín | Springer Verlag | 2017-09-21The growing use of poly(lactic acid) (PLA) and PLA-based nanocomposites in packaging has raised the interest of studying the mechanical recycling of the wastes and the properties of the recycled materials. The main objective of this work was to [...]texto impreso
González Sánchez, Carlos ; Martínez Aguirre, Alvar ; Pérez García, Beatriz ; Acosta, Juan ; Fonseca Valero, Carmen ; Orden Hernández, María Ulagares de la ; Sánchez Fernández, Carlos ; Martínez Urreaga, Joaquín | Elsevier | 2016-01The enhancement of mechanical performance of waste-sourced biocomposites through peroxide induced crosslinking was investigated in order to expand their range of applications. Biocomposites containing 25 to 35 wt% of residual Kraft-pulp cellulos[...]texto impreso
Arenas Vivo, Ana ; Beltrán González, Freddys ; Alcázar Moreno, Victoria ; Orden Hernández, María Ulagares de la ; Martínez Urreaga, Joaquín | Elsevier | 2017-09In recent years, a great effort has been devoted to the development of new automated identification and sorting methods for post-consumer plastics in the waste streams that reach the recycling processes, as the final properties of the recycled m[...]texto impreso
Arranz Andrés, Javier ; Orden Hernández, María Ulagares de la ; Martínez Urreaga, Joaquín ; Gómez-Elvira, José Manuel ; Pérez Tabernero, Ernesto ; Cerrada García, María Luisa | Elsevier | 2015-02Several regularity bands of the new trigonal form of iPP are identified in a real time FTIR study on a series of random propylene-co-1-pentene copolymers within a broad 1-pentene composition range. Some of them have been already reported for pro[...]texto impreso
Beltrán González, Freddys ; Gaspar Roa, Gerald Manuel ; Chomachayi, Masoud Dadras ; Jalali Arani, Azam ; Lozano Pérez, Antonio Abel ; Cenis Anadón, José Luis ; Orden Hernández, María Ulagares de la ; Pérez Tabernero, Ernesto ; Martínez Urreaga, Joaquín | Springer | 2020-02-10Poly(lactic acid) (PLA) is one of the most used biobased and biodegradable polymers. Due to their high stability, some of the newest grades of PLA are only degradable under severe industrial conditions. For these grades, mechanical recycling is [...]texto impreso
Lorenzo Esteban, Vicente ; Orden Hernández, María Ulagares de la ; Muñoz, Cristina ; Serrano, Cristina ; Martínez Urreaga, Joaquín | Elsevier Limited | 2014-06The preparation of recovered polycarbonate matrix nanocomposites filled with organic modified montmorillonites has been considered as a method for the secondary or mechanical recycling of these polymeric wastes. The mechanical properties of thes[...]texto impreso
Beltrán González, Freddys ; Infante Castilla, Celia ; Orden Hernández, María Ulagares de la ; Martínez Urreaga, Joaquín | Elsevier | 2019-05-10Mechanical recycling of poly(lactic acid) (PLA) could improve the social, economic and environmental impacts of the use of this bioplastic. However, the degradation of the polymer during its service life and during mechanical reprocessing reduce[...]texto impreso
Babaghayou, Meriam Imane ; Mourad, Abdel-Hamid I. ; Lorenzo Esteban, Vicente ; Orden Hernández, María Ulagares de la ; Martínez Urreaga, Joaquín ; Chabira, Salem Fouad ; Sebaa, Mohamed | Elsevier | 2016The impact of climatic ageing on the characteristics of both unexposed and exposed faces of unstabilized and stabilized LDPE films was investigated. The effects on chemical and mechanical properties and on the heterogeneity in the films properti[...]
