Effects of Aging and Different Mechanical Recycling Processes on the Structure and Properties of Poly(lactic acid)-clay Nanocomposites

Beltrán González, Freddys; Ortega, Elena; Solvoll, Anne-Marthe; Lorenzo Esteban, Vicente; Orden Hernández, María Ulagares de la y Martínez Urreaga, Joaquín (2017). Effects of Aging and Different Mechanical Recycling Processes on the Structure and Properties of Poly(lactic acid)-clay Nanocomposites. "Journal of Polymers And the Environment", v. 26 (n. 5); pp. 2142-2152. ISSN 1566-2543. https://doi.org/10.1007/s10924-017-1117-z.

Descripción

Título: Effects of Aging and Different Mechanical Recycling Processes on the Structure and Properties of Poly(lactic acid)-clay Nanocomposites
Autor/es:
  • Beltrán González, Freddys
  • Ortega, Elena
  • Solvoll, Anne-Marthe
  • Lorenzo Esteban, Vicente
  • Orden Hernández, María Ulagares de la
  • Martínez Urreaga, Joaquín
Tipo de Documento: Artículo
Título de Revista/Publicación: Journal of Polymers And the Environment
Fecha: 2017
Volumen: 26
Materias:
Palabras Clave Informales: Mechanical recycling; Poly(lactic acid); Nanocomposites; Structure; Properties
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Ingeniería Química Industrial y del Medio Ambiente
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The 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 study the effect of the aging and different mechanical recycling processes on the structure and properties of a PLA-montmorillonite nanocomposite. The two recycling processes included accelerated thermal and photochemical aging steps to simulate the degradation during the service life. One of them also included a demanding washing process prior to the reprocessing. A decrease in the molecular weight of PLA was observed in the recycled materials, especially in those subjected to the washing step, which explained the small decrease in microhardness and the increased water uptake at long immersion times. Water absorption at short immersion times was similar in virgin and recycled materials and was accurately described using a Fickian model. The recycled materials showed increased thermal, optical and gas barrier properties due to the improved clay dispersion that was observed by XRD and TEM analysis. The results suggest that recycled PLA-clay nanocomposites can be used in demanding applications.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaMAT2013-47972-C2-2-PSin especificarSin especificarNANOCOMPUESTOS POLIMERICOS BASADOS EN SILICES MESOPOROSAS Y EN GRAFENO PARA PRESTACIONES AVANZADAS
Universidad Politécnica de MadridUPM RP 160543006Sin especificarSin especificarSin especificar

Más información

ID de Registro: 53333
Identificador DC: http://oa.upm.es/53333/
Identificador OAI: oai:oa.upm.es:53333
Identificador DOI: 10.1007/s10924-017-1117-z
URL Oficial: https://link.springer.com/article/10.1007/s10924-017-1117-z
Depositado por: Memoria Investigacion
Depositado el: 11 Ene 2019 15:14
Ultima Modificación: 11 Ene 2019 15:14
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