Physico-Mechanical Properties of Biodegradable Rubber Toughened Polymers
Abstract
Summary: In this study, blends of poly(lactic acid) (PLA) with poly(butylene adipate‐co‐terephthalate) (PBAT) were studied for their mechanical and thermal properties as a function of the PBAT content. Tensile testing, impact testing, differential scanning calorimetry (DSC), dynamic mechanical analysis (DMTA) and scanning electron microscopy (SEM) were used to characterize the blends. It was observed that PLA/PBAT blends maintained quite high modulus and tensile strength compared to pure PLA. Small amounts of PBAT improved the elongation at break and the impact resistance showing a debonding effect typical of rubber toughened systems.
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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 [11]
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 [11]
The ∆Tg difference between blends is not higher than 3.5 °C.
“The ∆Tg difference between blends is not higher than 3.5 °C, which agrees with the previous research results [8,11].”
From Uncompatibilized PBAT/PLA Blends: Manufacturability, Miscibility and Properties (2020) · cites this paper as [11]
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- Authors
- Farsetti, S., Cioni, B., & Lazzeri, A.
- Affiliations
- University of Pisa (IT)
- Corresponding author
- Farsetti, S.
- ORCID
- Lazzeri, A.
- Venue
- Macromolecular Symposia
- Publisher
- Wiley
- Published
- 2011-03
- Volume
- 301
- Issue
- 1
- Pages
- 82-89
- ISSN
- 1022-1360 (ISSN-L)
- 1521-3900
- OpenAlex
- W2167955848
- Cited by
- 48
- References
- 22
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 7 · 2023: 4 · 2022: 5 · 2021: 4 · 2020: 5 · 2019: 7 · 2018: 5 · 2017: 2 · 2016: 2 · 2015: 1 · 2013: 2 · 2012: 1
- FWCI
- 0.39
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Macromolecular Symposia (publishedVersion)
- 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 › Polymer composites and self-healing
- Keywords
- polylactic acid, poly(butylene adipate-co-terephthalate), polymer blends, biodegradable polymers, rubber toughening, impact resistance, tensile properties, thermal properties, debonding, elongation at break
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