Cited by 91biodegradable polymer synthesis and propertiesPolymer crystallization and propertiesNatural Fiber Reinforced Composites

Manufacturing and compatibilization of PLA/PBAT binary blends by cottonseed oil-based derivatives

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Carbonell-Verdu, A., Ferri, J. M., Dominici, F., Boronat, T., Sanchez-Nacher, L., Balart, R., Torre, L.·2018·Express Polymer Letters

Abstract

This research work aims at the compatibilization of poly(lactic acid)/poly(butylene adipate-co-terephthalate), PLA/PBAT binary blends by using cottonseed oil derivatives, i.e. epoxidized (ECSO) and maleinized (MCSO) cottonseed oil.The potential of these vegetable oil-based compatibilizers are compared versus the effects of a conventional styreneacrylic oligomer.The base PLA/PBAT binary blend composition was 80 wt% PLA/20 wt% PBAT and the amount of compatibilizer was set to 1 and 7.5 wt%.The effects of the different compatibilizers were evaluated on PLA/PBAT films in terms of mechanical and thermal properties as well as blend's morphology by field emission scanning electron microscopy (FESEM).Complementary, biodisintegration tests in controlled compost soil and surface properties were evaluated to assess the effects of the compatibilizers.Addition of 1 wt% ECSO and MCSO led to a remarkable increase in the elongation at break up to values over 100% with regard to neat PLA.Despite this, maximum elongation at break was obtained for the compatibilized PLA/PBAT blend with 7.5 wt% MCSO, reaching values of about 321.2% respect neat PLA keeping mechanical resistant properties, such as Young's modulus and tensile strength, at high levels.Therefore, vegetable oil-derived compatibilizers stand out as environmentally friendly additives for PLA/PBAT binary blends with improved properties.

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Crossref · 10.3144/expresspolymlett.2018.69

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  • When PBAT is added into the PLA matrix as a dispersed component, the elongation at break increases with increasing PBAT content (10-40 wt.%).

    “When PBAT is added into the PLA matrix as a dispersed component, different studies point that the elongation at break increases, but the tensile strength and modulus of elasticity decrease with increasing PBAT content (10–40 wt.%) [9,10,11].”

    From Uncompatibilized PBAT/PLA Blends: Manufacturability, Miscibility and Properties (2020) · cites this paper as [10]

    The mechanical-properties results report that an uncompatibilized blend with 20 wt% PBAT had greater elongation at break than neat PLA (59.0% versus 29.2%). The Conclusions also say that adding PBAT increases elongation at break. The paper examines a 20 wt% PBAT blend, however, and does not establish that elongation increases progressively as PBAT content rises from 10 to 40 wt%. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • When PBAT is added into the PLA matrix as a dispersed component, the tensile strength and modulus of elasticity decrease with increasing PBAT content (10-40 wt.%).

    “When PBAT is added into the PLA matrix as a dispersed component, different studies point that the elongation at break increases, but the tensile strength and modulus of elasticity decrease with increasing PBAT content (10–40 wt.%) [9,10,11].”

    From Uncompatibilized PBAT/PLA Blends: Manufacturability, Miscibility and Properties (2020) · cites this paper as [10]

    The mechanical-properties results (section 3.1; page unavailable) give a lower Young’s modulus and tensile strength for the uncompatibilized blend containing 20 wt% PBAT than for neat PLA. The paper does not show a concentration-dependent decrease across 10–40 wt% PBAT; its studied blend contains 20 wt% PBAT. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • In a PBAT/PLA blend, PBAT can act either as a dispersed component or as a polymer matrix.

    “In a PBAT/PLA blend, PBAT can act either as a dispersed component [9,10] or as a polymer matrix.”

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Authors
Carbonell-Verdu, A., Ferri, J. M., Dominici, F., Boronat, T., Sanchez-Nacher, L., Balart, R., & Torre, L.
Affiliations
  • Universitat Politècnica de València (ES)
  • University of Perugia (IT)
Corresponding author
Boronat, T.
Venue
Express Polymer Letters
Published
2018
Volume
12
Issue
9
Pages
808-823
ISSN
1788-618X (ISSN-L)
OpenAlex
W2809857707
Cited by
91
References
54
Citations by year
2026: 2 · 2025: 12 · 2024: 6 · 2023: 17 · 2022: 7 · 2021: 17 · 2020: 15 · 2019: 11 · 2018: 4
FWCI
3.81
Type
journal article
Language
en
Open access
Licence
cc-by-nc-nd
Locations
  • eXPRESS Polymer Letters (publishedVersion, cc-by-nc-nd)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • RiuNet (Universitat Politècnica de València) (submittedVersion, cc-by-nc-nd)
Funders
  • Ministerio de Economía y Competitividad (MAT2017-84909-C2-2-R)
  • Universitat de València
  • Universitat Politècnica de València
Topics
  • Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
  • Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
  • Physical Sciences › Materials Science › Polymers and Plastics › Natural Fiber Reinforced Composites
Keywords
PLA/PBAT blends, polylactic acid, poly(butylene adipate-co-terephthalate), compatibilization, biodegradable plastics, mechanical properties, thermal properties, blend morphology, composting degradation, surface properties

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