Compatible and crystallization properties of poly(lactic acid)/poly(butylene adipate‐co‐terephthalate) blends
Abstract
Differential scanning calorimetry (DSC), wide angle X‐ray diffraction (WAXD) and dynamic mechanical analysis (DMA) properties of poly(lactic acid)/ poly(butylene adipate‐co‐terephthalate) (PLA/PBAT) specimens suggest that only small amounts of poor PLA and/or PBAT crystals are present in their corresponding melt crystallized specimens. In fact, the percentage crystallinity, peak melting temperature and onset re‐crystallization temperature values of PLA/PBAT specimens reduce gradually as their PBAT contents increase. However, the glass transition temperatures of PLA molecules found by DSC and DMA analysis reduce to the minimum value as the PBAT contents of PLAxPBATy specimens reach 2.5 wt %. Further morphological and DMA analysis of PLA/PBAT specimens reveal that PBAT molecules are miscible with PLA molecules at PBAT contents equal to or less than 2.5 wt %, since no distinguished phase‐separated PBAT droplets and tan δ transitions were found on fracture surfaces and tan δ curves of PLA/PBAT specimens, respectively. In contrast to PLA, the PBAT specimen exhibits highly deformable properties. After blending proper amounts of PBAT in PLA, the inherent brittle deformation behavior of PLA was successfully improved. Possible reasons accounting for these interesting crystallization, compatible and tensile properties of PLA/PBAT specimens are proposed. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
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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 [9]
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 [9]
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.”
From Uncompatibilized PBAT/PLA Blends: Manufacturability, Miscibility and Properties (2020) · cites this paper as [9]
The typical sea-islands morphology in SEM depicts poor miscibility between PBAT and PLA.
“The typical sea-islands morphology in SEM depicts poor miscibility between PBAT and PLA, which is consistent with the observation in other studies [9,13].”
From Uncompatibilized PBAT/PLA Blends: Manufacturability, Miscibility and Properties (2020) · cites this paper as [9]
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Poly (lactic acid) blends: Processing, properties and applications
Nofar, M., Sacligil, D., Carreau, P. J., Kamal, M. R., & Heuzey, M.-C. (2019) · International Journal of Biological Macromolecules · doi:10.1016/j.ijbiomac.2018.12.002 · Cited by 780 · see citing works
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Uncompatibilized PBAT/PLA Blends: Manufacturability, Miscibility and Properties
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The preparation and performance of poly(butylene adipate) terephthalate/corn stalk composites
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- Authors
- Yeh, J., Tsou, C., Huang, C., Chen, K., Wu, C., & Chai, W.
- Affiliations
- National Taiwan University of Science and Technology (TW)
- Tatung University (TW)
- Tamkang University (TW)
- Kao Yuan University (TW)
- Vanung University (TW)
- Corresponding author
- Chai, Wan‐Lan
- Venue
- Journal of Applied Polymer Science
- Publisher
- Wiley
- Published
- 2009-12-10
- Volume
- 116
- Issue
- 2
- Pages
- 680-687
- ISSN
- 0021-8995 (ISSN-L)
- 1097-4628
- OpenAlex
- W2012682430
- Cited by
- 199
- References
- 3
- Citations by year
- 2026: 8 · 2025: 11 · 2024: 22 · 2023: 12 · 2022: 16 · 2021: 17 · 2020: 16 · 2019: 14 · 2018: 16 · 2017: 11 · 2016: 8 · 2015: 7 · 2014: 11 · 2013: 10 · 2012: 11
- FWCI
- 5.61
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Applied Polymer Science (publishedVersion)
- Tamkang University Institutional Repository (TKUIR) (submittedVersion)
- Topics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
- Keywords
- polylactic acid, poly(butylene adipate-co-terephthalate), PLA/PBAT blends, polymer compatibility, miscibility, crystallization behavior, crystallinity, glass transition temperature, recrystallization, phase separation, tensile properties, impact toughness, biodegradable polymers
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