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Mechanical Recycling of PLA Filled with a High Level of Cellulose Fibres
University of Borås, Faculty of Textiles, Engineering and Business. (Resursåtervinning)ORCID iD: 0000-0002-7377-0765
University of Borås, Faculty of Textiles, Engineering and Business.
2016 (English)In: Journal of polymers and the environment, ISSN 1566-2543, E-ISSN 1572-8919, Vol. 25, no 3, 185-195 p.Article in journal (Refereed) Published
Abstract [en]

Composites consisting of 30 vol% PLA and 70 vol% cellulose fibres were prepared with compression moulding. In the first part of the study, the recyclability of this composite material was investigated by grinding the material and using the recyclate obtained as a filler for PLA. Thus, the recyclate was compounded with PLA in loadings ranging from 20 to 50 wt%. The composites obtained were characterised by tensile tests, Charpy impact tests, DMTA, and SEM. Tests showed that the recyclate had a relatively good reinforcing effect. Stress at break increased from about 50 to 77 MPa and the modulus increased from 3.6 to 8.5 GPa. In the second part of the study, the ability to mechanically recycle the composites obtained was evaluated by repeated processing. Composite with two loadings of the recyclate (20 wt% and 50 %) was injection moulded repeatedly, six times. Tests showed that the composite material with 20 wt% recyclate could withstand six cycles relatively well, while the composite with the higher load degraded much more quickly. For the composites with 50 wt% recyclate, signs of polymer degradation could be seen already after reprocessing the composite once.

Place, publisher, year, edition, pages
Springer, 2016. Vol. 25, no 3, 185-195 p.
Keyword [en]
Biocomposite, Biopolymer, Recycling, Repeated processing, Polylactic acid, Ageing
National Category
Polymer Technologies
Research subject
Resource Recovery
Identifiers
URN: urn:nbn:se:hb:diva-11527DOI: 10.1007/s10924-016-0760-0ISI: 000382146000001ScopusID: 84961217478OAI: oai:DiVA.org:hb-11527DiVA: diva2:1060231
Projects
Hållbar återvinning av ”gröna” plaster
Available from: 2016-12-28 Created: 2016-12-28 Last updated: 2016-12-28Bibliographically approved

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Åkesson, DanSkrifvars, Mikael
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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
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  • de-DE
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