High biomass filled biodegradable plastic in engineering sustainable composites

The production of single-use, non-renewable plastic has persistently impacted the environment through non-biodegradable plastic accumulation. Injection-moulded biodegradable polymer blend [poly(butylene succinate-co-butylene-adipate) (PBSA) and poly(butylene adipate-co-terephthalate) (PBAT)] with an...

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Main Authors: Dayna Colleen McNeill, Akhilesh Kumar Pal, Amar K. Mohanty, Manjusri Misra
Format: Article
Language:English
Published: Elsevier 2023-10-01
Series:Composites Part C: Open Access
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666682023000440
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author Dayna Colleen McNeill
Akhilesh Kumar Pal
Amar K. Mohanty
Manjusri Misra
author_facet Dayna Colleen McNeill
Akhilesh Kumar Pal
Amar K. Mohanty
Manjusri Misra
author_sort Dayna Colleen McNeill
collection DOAJ
description The production of single-use, non-renewable plastic has persistently impacted the environment through non-biodegradable plastic accumulation. Injection-moulded biodegradable polymer blend [poly(butylene succinate-co-butylene-adipate) (PBSA) and poly(butylene adipate-co-terephthalate) (PBAT)] with an inexpensive filler, walnut shell powder (WSP), enables an appropriate melt flow behaviour after incorporating compatibilizer as confirmed by rheological analysis. The sustainable composites with 60 wt% WSP showed a decrement of 68.4% in tensile strength as compared to PBSA/PBAT blend. However, the inclusion of a 5 wt% compatibilizer in PBSA/PBAT/60wt%WSP composite increased tensile strength by 48.7%, indicating improved interfacial adhesion. Further, the improvements in tensile (694%) and flexural moduli (461%) of PBSA/PBAT blend were observed with the addition of 60 wt% WSP in presence of 7 wt% compatibilizer due to fibrillar morphology of filler. Thus, signifying enhanced stiffness with increased filler, leading to a composite suitable for rigid packaging. Scanning electron microscopy (SEM) confirmed an improved adhesion between matrix and filler interfaces with the addition of a compatibilizer as gaps decreased, subsequently leading to increased mechanical properties. The novelty of this work establishes a high loading of filler can be incorporated with biodegradable polymers and improved properties in presence of compatibilizer makes it more suitable for injection moulding applications to produce a low-cost biocomposite capable of being used as a single-use plastic alternative in rigid packaging.
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spelling doaj.art-44ea3bc0b95d490d9fbccb43630cfca32023-12-16T06:09:50ZengElsevierComposites Part C: Open Access2666-68202023-10-0112100388High biomass filled biodegradable plastic in engineering sustainable compositesDayna Colleen McNeill0Akhilesh Kumar Pal1Amar K. Mohanty2Manjusri Misra3Bioproducts Discovery and Development Centre, Department of Plant Agriculture, Crop Science Building, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada; School of Engineering, Thornbrough Building, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, CanadaBioproducts Discovery and Development Centre, Department of Plant Agriculture, Crop Science Building, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada; School of Engineering, Thornbrough Building, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, CanadaBioproducts Discovery and Development Centre, Department of Plant Agriculture, Crop Science Building, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada; School of Engineering, Thornbrough Building, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, CanadaBioproducts Discovery and Development Centre, Department of Plant Agriculture, Crop Science Building, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada; School of Engineering, Thornbrough Building, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada; Corresponding author.The production of single-use, non-renewable plastic has persistently impacted the environment through non-biodegradable plastic accumulation. Injection-moulded biodegradable polymer blend [poly(butylene succinate-co-butylene-adipate) (PBSA) and poly(butylene adipate-co-terephthalate) (PBAT)] with an inexpensive filler, walnut shell powder (WSP), enables an appropriate melt flow behaviour after incorporating compatibilizer as confirmed by rheological analysis. The sustainable composites with 60 wt% WSP showed a decrement of 68.4% in tensile strength as compared to PBSA/PBAT blend. However, the inclusion of a 5 wt% compatibilizer in PBSA/PBAT/60wt%WSP composite increased tensile strength by 48.7%, indicating improved interfacial adhesion. Further, the improvements in tensile (694%) and flexural moduli (461%) of PBSA/PBAT blend were observed with the addition of 60 wt% WSP in presence of 7 wt% compatibilizer due to fibrillar morphology of filler. Thus, signifying enhanced stiffness with increased filler, leading to a composite suitable for rigid packaging. Scanning electron microscopy (SEM) confirmed an improved adhesion between matrix and filler interfaces with the addition of a compatibilizer as gaps decreased, subsequently leading to increased mechanical properties. The novelty of this work establishes a high loading of filler can be incorporated with biodegradable polymers and improved properties in presence of compatibilizer makes it more suitable for injection moulding applications to produce a low-cost biocomposite capable of being used as a single-use plastic alternative in rigid packaging.http://www.sciencedirect.com/science/article/pii/S2666682023000440PackagingSingle-useBiodegradableCompostableBiomassCompatibilization
spellingShingle Dayna Colleen McNeill
Akhilesh Kumar Pal
Amar K. Mohanty
Manjusri Misra
High biomass filled biodegradable plastic in engineering sustainable composites
Composites Part C: Open Access
Packaging
Single-use
Biodegradable
Compostable
Biomass
Compatibilization
title High biomass filled biodegradable plastic in engineering sustainable composites
title_full High biomass filled biodegradable plastic in engineering sustainable composites
title_fullStr High biomass filled biodegradable plastic in engineering sustainable composites
title_full_unstemmed High biomass filled biodegradable plastic in engineering sustainable composites
title_short High biomass filled biodegradable plastic in engineering sustainable composites
title_sort high biomass filled biodegradable plastic in engineering sustainable composites
topic Packaging
Single-use
Biodegradable
Compostable
Biomass
Compatibilization
url http://www.sciencedirect.com/science/article/pii/S2666682023000440
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