An Integrated Approach to the Design of PHBV-Based Blends: Structure–Property–Performance Relationships for Compostable Packaging.
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| Title: | An Integrated Approach to the Design of PHBV-Based Blends: Structure–Property–Performance Relationships for Compostable Packaging. |
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| Authors: | Grgurević, Karlo1 (AUTHOR), Miloloža Nikolić, Martina1 (AUTHOR), Grgić, Dajana Kučić1 (AUTHOR), Ocelić Bulatović, Vesna1 (AUTHOR) vocelicbulatovic@fkit.unizg.hr |
| Source: | Polymers (20734360). Jun2026, Vol. 18 Issue 12, p1426. 26p. |
| Subjects: | Polymer blends, Compostable materials, Thermal stability, Mechanical behavior of materials, Biodegradation, Biodegradable plastics, Poly-beta-hydroxybutyrate, Polylactic acid |
| Abstract: | Environmental concerns with petroleum-based polymers have accelerated the development of biodegradable alternatives, making poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) a promising candidate for sustainable packaging. However, its functional performance necessitates modification through blending. In this study, blends containing 65–85 wt.% polylactide (PLA) were investigated to establish structure–property relationships relevant to compostable packaging. The results reveal partial miscibility of the blends and pronouncedcomposition-dependent changes in morphology and thermal behavior, characterized by an increase in glass transition temperature and a decrease in PLA melting temperature. Increasing PLA content (≥80 wt.%) enhanced thermal stability, increasing the degradation temperature to 288.0 °C. In contrast, higher PHBV content (≥25 wt.%) significantly improved barrier properties of PLA, reducing oxygen and water vapor transmission rates to 74.47 cm3 m−2 day−1 and 29.11 g m−2 day−1, respectively. Biodegradation behavior revealed complete degradation of PHBV after 56 days, whereas PLA showed only 1.29% mass loss under identical conditions. In the blends, biodegradation proceeded preferentially through the PHBV phase, resulting in composition-dependent mass loss. Among the investigated compositions, PLA65/PHBV provided the most balanced combination of barrier performance, mechanical behavior, and biodegradation response. Overall, these findings demonstrate that tailoring composition enables the design of polymer systems for sustainable packaging applications. [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.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 194908295 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: An Integrated Approach to the Design of PHBV-Based Blends: Structure–Property–Performance Relationships for Compostable Packaging. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Grgurević%2C+Karlo%22">Grgurević, Karlo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Miloloža+Nikolić%2C+Martina%22">Miloloža Nikolić, Martina</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Grgić%2C+Dajana+Kučić%22">Grgić, Dajana Kučić</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ocelić+Bulatović%2C+Vesna%22">Ocelić Bulatović, Vesna</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> vocelicbulatovic@fkit.unizg.hr</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Polymers+%2820734360%29%22">Polymers (20734360)</searchLink>. Jun2026, Vol. 18 Issue 12, p1426. 26p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Polymer+blends%22">Polymer blends</searchLink><br /><searchLink fieldCode="DE" term="%22Compostable+materials%22">Compostable materials</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+stability%22">Thermal stability</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Biodegradation%22">Biodegradation</searchLink><br /><searchLink fieldCode="DE" term="%22Biodegradable+plastics%22">Biodegradable plastics</searchLink><br /><searchLink fieldCode="DE" term="%22Poly-beta-hydroxybutyrate%22">Poly-beta-hydroxybutyrate</searchLink><br /><searchLink fieldCode="DE" term="%22Polylactic+acid%22">Polylactic acid</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Environmental concerns with petroleum-based polymers have accelerated the development of biodegradable alternatives, making poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) a promising candidate for sustainable packaging. However, its functional performance necessitates modification through blending. In this study, blends containing 65–85 wt.% polylactide (PLA) were investigated to establish structure–property relationships relevant to compostable packaging. The results reveal partial miscibility of the blends and pronouncedcomposition-dependent changes in morphology and thermal behavior, characterized by an increase in glass transition temperature and a decrease in PLA melting temperature. Increasing PLA content (≥80 wt.%) enhanced thermal stability, increasing the degradation temperature to 288.0 °C. In contrast, higher PHBV content (≥25 wt.%) significantly improved barrier properties of PLA, reducing oxygen and water vapor transmission rates to 74.47 cm3 m−2 day−1 and 29.11 g m−2 day−1, respectively. Biodegradation behavior revealed complete degradation of PHBV after 56 days, whereas PLA showed only 1.29% mass loss under identical conditions. In the blends, biodegradation proceeded preferentially through the PHBV phase, resulting in composition-dependent mass loss. Among the investigated compositions, PLA65/PHBV provided the most balanced combination of barrier performance, mechanical behavior, and biodegradation response. Overall, these findings demonstrate that tailoring composition enables the design of polymer systems for sustainable packaging applications. [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/polym18121426 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 26 StartPage: 1426 Subjects: – SubjectFull: Polymer blends Type: general – SubjectFull: Compostable materials Type: general – SubjectFull: Thermal stability Type: general – SubjectFull: Mechanical behavior of materials Type: general – SubjectFull: Biodegradation Type: general – SubjectFull: Biodegradable plastics Type: general – SubjectFull: Poly-beta-hydroxybutyrate Type: general – SubjectFull: Polylactic acid Type: general Titles: – TitleFull: An Integrated Approach to the Design of PHBV-Based Blends: Structure–Property–Performance Relationships for Compostable Packaging. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Grgurević, Karlo – PersonEntity: Name: NameFull: Miloloža Nikolić, Martina – PersonEntity: Name: NameFull: Grgić, Dajana Kučić – PersonEntity: Name: NameFull: Ocelić Bulatović, Vesna IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 20734360 Numbering: – Type: volume Value: 18 – Type: issue Value: 12 Titles: – TitleFull: Polymers (20734360) Type: main |
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