Biocomoposites of polylactic acid/poly(butylene adipate-<i>co</i>-terephthalate) blends loaded with quinoa husk agro-waste: thermal and mechanical properties

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dc.contributor.authorPonce, Giovanni
dc.contributor.authorRodriguez-Llamazares, Saddys
dc.contributor.authorRivera, Patricia Castano
dc.contributor.authorCastano, Johanna
dc.contributor.authorOporto-Velasquez, Gloria
dc.contributor.authorSabando, Constanza
dc.contributor.authorIde, Walter
dc.contributor.authorNesic, Aleksandra
dc.contributor.authorCabrera-Barjas, Gustavo
dc.date.accessioned2025-01-20T21:03:56Z
dc.date.available2025-01-20T21:03:56Z
dc.date.issued2022
dc.description.abstractQuinoa husk (QH) is often discarded without being utilized. This study investigates an alternative route for this agro-waste resource as a raw material in the preparation of bioplastic composites. The effect of QH on the mechanical and thermal properties of thermoplastic poly(lactic acid)/poly(butylene adipate-co-terephthalate) (PLA/PBAT) blends was evaluated. The composites were prepared by melting compounding. The content of quinoa husk in composite materials varied from 0-30 wt%. The results demonstrated that addition of quinoa husk in PLA/PBAT blend induced slight increase in crystalline phase of PLA, which was evidenced by FTIR and DSC analysis. However, it reduced the mechanical and thermal properties of materials. The 30 wt% load of quinoa husk in formulation led to decreased tensile strength (by 45.5%), elongation at break (by 85.8%), thermal stability (by 23.5%) and flexural strength (by 36%) of final biocomposite material, when compared to the control biopolymer blend. Although addition of quinoa husk in bioplastic material did not improve mechanical properties, load of 20 wt% QH in PLA/PBAT still provided satisfied tensile strength of 19 MPa and flexural strength of 27 MPa, showing that quinoa husk can add value to lignocellulosic by-product/agro waste, particularly decreasing the cost and increasing the sustainability of bioplastic materials for use in the agriculture industry.
dc.fuente.origenWOS
dc.identifier.doi10.1007/s10965-022-03196-y
dc.identifier.eissn1572-8935
dc.identifier.issn1022-9760
dc.identifier.urihttps://doi.org/10.1007/s10965-022-03196-y
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/93195
dc.identifier.wosidWOS:000833023400005
dc.issue.numero8
dc.language.isoen
dc.revistaJournal of polymer research
dc.rightsacceso restringido
dc.subjectQuinoa husk
dc.subjectPLA
dc.subjectPBAT
dc.subjectMechanical properties
dc.subjectThermal properties
dc.subject.ods12 Responsible Consumption and Production
dc.subject.odspa12 Producción y consumo responsable
dc.titleBiocomoposites of polylactic acid/poly(butylene adipate-<i>co</i>-terephthalate) blends loaded with quinoa husk agro-waste: thermal and mechanical properties
dc.typeartículo
dc.volumen29
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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