Incorporation of Argan Shell Flour in a Biobased Polypropylene Matrix for the Development of High Environmentally Friendly Composites by Injection Molding

In this study, a new composite material is developed using a semi bio-based polypropylene (bioPP) and micronized argan shell (MAS) byproducts. To improve the interaction between the filler and the polymer matrix, a compatibilizer, PP-g-MA, is used. The samples are prepared using a co-rotating twin e...

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Main Authors: María Jordà-Reolid, Virginia Moreno, Asunción Martínez-Garcia, José A. Covas, Jaume Gomez-Caturla, Juan Ivorra-Martinez, Luis Quiles-Carrillo
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/15/12/2743
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author María Jordà-Reolid
Virginia Moreno
Asunción Martínez-Garcia
José A. Covas
Jaume Gomez-Caturla
Juan Ivorra-Martinez
Luis Quiles-Carrillo
author_facet María Jordà-Reolid
Virginia Moreno
Asunción Martínez-Garcia
José A. Covas
Jaume Gomez-Caturla
Juan Ivorra-Martinez
Luis Quiles-Carrillo
author_sort María Jordà-Reolid
collection DOAJ
description In this study, a new composite material is developed using a semi bio-based polypropylene (bioPP) and micronized argan shell (MAS) byproducts. To improve the interaction between the filler and the polymer matrix, a compatibilizer, PP-g-MA, is used. The samples are prepared using a co-rotating twin extruder followed by an injection molding process. The addition of the MAS filler improves the mechanical properties of the bioPP, as evidenced by an increase in tensile strength from 18.2 MPa to 20.8 MPa. The reinforcement is also observed in the thermomechanical properties, with an increased storage modulus. The thermal characterization and X-ray diffraction indicate that the addition of the filler leads to the formation of α structure crystals in the polymer matrix. However, the addition of a lignocellulosic filler also leads to an increased affinity for water. As a result, the water uptake of the composites increases, although it remains relatively low even after 14 weeks. The water contact angle is also reduced. The color of the composites changes to a color similar to wood. Overall, this study demonstrates the potential of using MAS byproducts to improve their mechanical properties. However, the increased affinity with water should be taken into account in potential applications.
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spelling doaj.art-0217e22270d44d648cf45ab23bf894672023-11-18T12:14:07ZengMDPI AGPolymers2073-43602023-06-011512274310.3390/polym15122743Incorporation of Argan Shell Flour in a Biobased Polypropylene Matrix for the Development of High Environmentally Friendly Composites by Injection MoldingMaría Jordà-Reolid0Virginia Moreno1Asunción Martínez-Garcia2José A. Covas3Jaume Gomez-Caturla4Juan Ivorra-Martinez5Luis Quiles-Carrillo6Innovative Materials and Manufacturing Area-AIJU, Technological Institute for Children’s Products & Leisure, 03440 Ibi, SpainInstitute of Materials Technology (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell s/n, 03801 Alcoy, SpainInnovative Materials and Manufacturing Area-AIJU, Technological Institute for Children’s Products & Leisure, 03440 Ibi, SpainInstitute for Polymers and Composites, University of Minho, 4804-533 Guimaraes, PortugalInstitute of Materials Technology (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell s/n, 03801 Alcoy, SpainInstitute of Materials Technology (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell s/n, 03801 Alcoy, SpainInstitute of Materials Technology (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell s/n, 03801 Alcoy, SpainIn this study, a new composite material is developed using a semi bio-based polypropylene (bioPP) and micronized argan shell (MAS) byproducts. To improve the interaction between the filler and the polymer matrix, a compatibilizer, PP-g-MA, is used. The samples are prepared using a co-rotating twin extruder followed by an injection molding process. The addition of the MAS filler improves the mechanical properties of the bioPP, as evidenced by an increase in tensile strength from 18.2 MPa to 20.8 MPa. The reinforcement is also observed in the thermomechanical properties, with an increased storage modulus. The thermal characterization and X-ray diffraction indicate that the addition of the filler leads to the formation of α structure crystals in the polymer matrix. However, the addition of a lignocellulosic filler also leads to an increased affinity for water. As a result, the water uptake of the composites increases, although it remains relatively low even after 14 weeks. The water contact angle is also reduced. The color of the composites changes to a color similar to wood. Overall, this study demonstrates the potential of using MAS byproducts to improve their mechanical properties. However, the increased affinity with water should be taken into account in potential applications.https://www.mdpi.com/2073-4360/15/12/2743bioPPargan shell wastesbyproductcomposites
spellingShingle María Jordà-Reolid
Virginia Moreno
Asunción Martínez-Garcia
José A. Covas
Jaume Gomez-Caturla
Juan Ivorra-Martinez
Luis Quiles-Carrillo
Incorporation of Argan Shell Flour in a Biobased Polypropylene Matrix for the Development of High Environmentally Friendly Composites by Injection Molding
Polymers
bioPP
argan shell wastes
byproduct
composites
title Incorporation of Argan Shell Flour in a Biobased Polypropylene Matrix for the Development of High Environmentally Friendly Composites by Injection Molding
title_full Incorporation of Argan Shell Flour in a Biobased Polypropylene Matrix for the Development of High Environmentally Friendly Composites by Injection Molding
title_fullStr Incorporation of Argan Shell Flour in a Biobased Polypropylene Matrix for the Development of High Environmentally Friendly Composites by Injection Molding
title_full_unstemmed Incorporation of Argan Shell Flour in a Biobased Polypropylene Matrix for the Development of High Environmentally Friendly Composites by Injection Molding
title_short Incorporation of Argan Shell Flour in a Biobased Polypropylene Matrix for the Development of High Environmentally Friendly Composites by Injection Molding
title_sort incorporation of argan shell flour in a biobased polypropylene matrix for the development of high environmentally friendly composites by injection molding
topic bioPP
argan shell wastes
byproduct
composites
url https://www.mdpi.com/2073-4360/15/12/2743
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