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18 búsqueda de la palabra clave 'Materia = Ciencias: Química: Industria del plástico'
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La cantidad de objetos de plástico que se encuentra en las colecciones de los museos es, sin lugar a dudas, cada vez mayor. Por ello, no es de sorprender que la conservación de los objetos realizados en materiales plásticos esté ganando cada vez[...]![]()
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La modificación de polímeros es uno de los métodos mas rápidos, económicos y eficaces para la obtención de materiales con propiedades mejoradas a partir de polímeros convencionales. En este trabajo se ha desarrollado la síntesis de polímeros en[...]![]()
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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[...]![]()
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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[...]![]()
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Horta Romarís, Laura ; Abad López, María José ; González Rodríguez, M Victoria ; Lasagabáster Latorre, Aurora ; Costa, Pedro ; Lanceros Méndez, Senentxu | Elsevier | 2017-01-15Most of the studies dealing with polyanilines (PANIs) are focused on electrochemical polymerization; however, chemical polymerization is more suitable for large–scale production. In order to develop commercially viable, clean, effective material[...]![]()
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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[...]![]()
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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 [...]![]()
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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[...]![]()
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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[...]![]()
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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[...]![]()
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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[...]![]()
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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 [...]![]()
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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[...]![]()
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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[...]