Effect of simulated mechanical recycling processes on the properties of poly (lactic acid)

Beltrán González, Freddys and Lorenzo, V. and Orden Hernández, María Ulagares de la and Martínez Urreaga, Joaquín (2016). Effect of simulated mechanical recycling processes on the properties of poly (lactic acid). In: "4th International Conference on Sustainable Solid Waste Management", 23-25 june 2016, Limassol, Chipre. pp. 1-18. https://doi.org/10.1016/j.jenvman.2017.05.020.

Description

Title: Effect of simulated mechanical recycling processes on the properties of poly (lactic acid)
Author/s:
  • Beltrán González, Freddys
  • Lorenzo, V.
  • Orden Hernández, María Ulagares de la
  • Martínez Urreaga, Joaquín
Item Type: Presentation at Congress or Conference (Article)
Event Title: 4th International Conference on Sustainable Solid Waste Management
Event Dates: 23-25 june 2016
Event Location: Limassol, Chipre
Title of Book: Proceedings of the 4th International Conference on Sustainable Solid Waste Management
Date: 2016
Subjects:
Freetext Keywords: poly (lactic acid); mechanical recycling; optical properties; mechanical properties; gas barrier properties
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Química Industrial y del Medio Ambiente
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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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, one of them comprising an accelerated aging and a second melt compounding and compression molding step, and other which included a demanding washing step after the accelerated aging process. 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.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainMAT201347972-C2-2-PUnspecifiedUnspecifiedUnspecified
Universidad Politécnica de MadridRP 160543006UnspecifiedUnspecifiedUnspecified

More information

Item ID: 46156
DC Identifier: http://oa.upm.es/46156/
OAI Identifier: oai:oa.upm.es:46156
DOI: 10.1016/j.jenvman.2017.05.020
Official URL: http://uest.ntua.gr/cyprus2016/proceedings/index.html#home
Deposited by: Memoria Investigacion
Deposited on: 31 May 2017 07:54
Last Modified: 12 May 2019 22:30
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