Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Effect of simulated mechanical recycling processes on the structure and properties of poly(lactic acid)
Year:2017
Research Areas
  • Macromolecules and polymers,
  • Engineering
Information
Abstract
The 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 recycling processes. The first recycling process consisted of an accelerated ageing and a second melt processing step, while the other recycling process included an accelerated ageing, a demanding washing process and a second melt processing step. The intrinsic viscosity measurements indicate that both recycling processes produce a degradation in PLA, which is more pronounced in the sample subjected to the washing process. DSC results suggest an increase in the mobility of the polymer chains in the recycled materials; however the degree of crystallinity of PLA seems unchanged. The optical, mechanical and gas barrier properties of PLA do not seem to be largely affected by the degradation suffered during the different recycling processes. These results suggest that, despite the degradation of PLA, the impact of the different simulated mechanical recycling processes on the final properties is limited. Thus, the potential use of recycled PLA in packaging applications is not jeopardized.
International
Si
JCR
Si
Title
Journal of Environmental Management
ISBN
0301-4797
Impact factor JCR
4,01
Impact info
Datos JCR del año 2016
Volume
216
10.1016/j.jenvman.2017.05.020
Journal number
From page
25
To page
31
Month
SIN MES
Ranking
Participants
  • Autor: Freddys Beltran Gonzalez (UPM)
  • Autor: Vicente Lorenzo Esteban (UPM)
  • Autor: Jessica del Valle Acosta Garcia (UPM)
  • Autor: María Ulagares de la Orden Hernández (Universidad Complutense de Madrid)
  • Autor: Joaquin Maria Martinez Urreaga (UPM)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Física Aplicada e Ingeniería de Materiales
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