Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Effects of Aging and Different Mechanical Recycling Processes on the Structure and Properties of Poly(lactic acid)-clay Nanocomposites
Year:2017
Research Areas
  • Macromolecules and polymers
Information
Abstract
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.
International
Si
JCR
Si
Title
Journal of Polymers And the Environment
ISBN
1566-2543
Impact factor JCR
1,877
Impact info
Datos JCR del año 2016
Volume
26
10.1007/s10924-017-1117-z
Journal number
From page
2142
To page
2152
Month
SIN MES
Ranking
Participants
  • Autor: Freddys Beltran Gonzalez (UPM)
  • Autor: Elena Ortega
  • Autor: Anne-Marthe Solvoll
  • Autor: Vicente Lorenzo Esteban (UPM)
  • Autor: María Ulagares de la Orden (Universidad Complutense de Madrid)
  • Autor: Joaquin Maria Martinez Urreaga (UPM)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Ingeniería Química Industrial y del Medio Ambiente
  • Departamento: Física Aplicada e Ingeniería de Materiales
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)