Mechanical Performance of Uncompatibilized Recycled Polypropylene Biocomposites Filled with Corn, Banana, and Barley Agro-Industrial Residue Fibers.
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| Title: | Mechanical Performance of Uncompatibilized Recycled Polypropylene Biocomposites Filled with Corn, Banana, and Barley Agro-Industrial Residue Fibers. |
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| Authors: | García, Juan Fernando1 (AUTHOR) jfgarcia@utpl.edu.ec, Febres, Juan Diego1 (AUTHOR) |
| Source: | Polymers (20734360). Jun2026, Vol. 18 Issue 11, p1384. 24p. |
| Subjects: | Polypropylene, Mechanical behavior of materials, Plastic scrap, Natural fibers, Fiber-reinforced plastics, Plant fibers, Agricultural wastes, Barley |
| Abstract: | Recycled polypropylene (rPP) biocomposites represent a convergent strategy for plastic waste valorization and agro-industrial residue reutilization. This study quantifies tensile, flexural, and compressive performance (ASTM D638, D790, D695) of rPP biocomposites incorporating raw corn stover (Zea mays), banana pseudostem (Musa spp.), and barley residue (Hordeum vulgare) fibers at 10, 20, and 30 wt%, processed by single-screw extrusion and compression molding without compatibilizer. Two-way ANOVA with Tukey HSD post hoc analysis (α = 0.05) evaluated effects of fiber type and concentration. Tensile strength declined monotonically across all systems, from 24.9 MPa (neat rPP) to 7.9 MPa at 30 wt% banana fiber. Corn fiber exhibited exceptional tensile concentration stability (only −11% across the full range) and the best flexural retention at 10 wt% (36.6 MPa, 79% of neat rPP). A performance plateau was identified at 20 wt% under both tensile and flexural loading, beyond which further addition produced no significant reduction. Under compression, fiber type exerted its largest statistical effect (F = 81.231), all three systems were mutually distinguishable, and no plateau was observed. These results establish a loading-mode-resolved mechanical baseline for uncompatibilized rPP biocomposites, with corn fiber at 10–20 wt% as the most versatile formulation across all loading modes. [ABSTRACT FROM AUTHOR] |
| Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 194587648 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Mechanical Performance of Uncompatibilized Recycled Polypropylene Biocomposites Filled with Corn, Banana, and Barley Agro-Industrial Residue Fibers. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22García%2C+Juan+Fernando%22">García, Juan Fernando</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jfgarcia@utpl.edu.ec</i><br /><searchLink fieldCode="AR" term="%22Febres%2C+Juan+Diego%22">Febres, Juan Diego</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Polymers+%2820734360%29%22">Polymers (20734360)</searchLink>. Jun2026, Vol. 18 Issue 11, p1384. 24p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Polypropylene%22">Polypropylene</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Plastic+scrap%22">Plastic scrap</searchLink><br /><searchLink fieldCode="DE" term="%22Natural+fibers%22">Natural fibers</searchLink><br /><searchLink fieldCode="DE" term="%22Fiber-reinforced+plastics%22">Fiber-reinforced plastics</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+fibers%22">Plant fibers</searchLink><br /><searchLink fieldCode="DE" term="%22Agricultural+wastes%22">Agricultural wastes</searchLink><br /><searchLink fieldCode="DE" term="%22Barley%22">Barley</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Recycled polypropylene (rPP) biocomposites represent a convergent strategy for plastic waste valorization and agro-industrial residue reutilization. This study quantifies tensile, flexural, and compressive performance (ASTM D638, D790, D695) of rPP biocomposites incorporating raw corn stover (Zea mays), banana pseudostem (Musa spp.), and barley residue (Hordeum vulgare) fibers at 10, 20, and 30 wt%, processed by single-screw extrusion and compression molding without compatibilizer. Two-way ANOVA with Tukey HSD post hoc analysis (α = 0.05) evaluated effects of fiber type and concentration. Tensile strength declined monotonically across all systems, from 24.9 MPa (neat rPP) to 7.9 MPa at 30 wt% banana fiber. Corn fiber exhibited exceptional tensile concentration stability (only −11% across the full range) and the best flexural retention at 10 wt% (36.6 MPa, 79% of neat rPP). A performance plateau was identified at 20 wt% under both tensile and flexural loading, beyond which further addition produced no significant reduction. Under compression, fiber type exerted its largest statistical effect (F = 81.231), all three systems were mutually distinguishable, and no plateau was observed. These results establish a loading-mode-resolved mechanical baseline for uncompatibilized rPP biocomposites, with corn fiber at 10–20 wt% as the most versatile formulation across all loading modes. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/polym18111384 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 24 StartPage: 1384 Subjects: – SubjectFull: Polypropylene Type: general – SubjectFull: Mechanical behavior of materials Type: general – SubjectFull: Plastic scrap Type: general – SubjectFull: Natural fibers Type: general – SubjectFull: Fiber-reinforced plastics Type: general – SubjectFull: Plant fibers Type: general – SubjectFull: Agricultural wastes Type: general – SubjectFull: Barley Type: general Titles: – TitleFull: Mechanical Performance of Uncompatibilized Recycled Polypropylene Biocomposites Filled with Corn, Banana, and Barley Agro-Industrial Residue Fibers. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: García, Juan Fernando – PersonEntity: Name: NameFull: Febres, Juan Diego IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 20734360 Numbering: – Type: volume Value: 18 – Type: issue Value: 11 Titles: – TitleFull: Polymers (20734360) Type: main |
| ResultId | 1 |
