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Cited by 397Polymer crystallization and propertiesbiodegradable polymer synthesis and propertiesPolymer Foaming and Composites

Influence of chain extender on mechanical, thermal and morphological properties of blown films of PLA/PBAT blends

Open access
Arruda, Liliane Cardoso, Magaton, Marina, Bretas, Rosário Elida Suman, Ueki, Marcelo Massayoshi·2015·Polymer Testing
DOI 10.1016/j.polymertesting.2015.02.005
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Crossref · 10.1016/j.polymertesting.2015.02.005

Cites

30 of 30 references verified0 citation errors · 0 not checkable

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  • PBAT/PLA blends generally represent two melting temperatures (Tm ~ 120 °C/152 °C) corresponding to those for PBAT and PLA.

    “The PBAT/PLA blends generally represent two separated almost unchanged glass transition temperatures (Tg ~ −30 °C and 61 °C) and two melting temperatures (Tm ~ 120 °C/152 °C) corresponding to those for PBAT and PLA, which is in agreement with the observation of the blends in the literature [12,13].”

    From Uncompatibilized PBAT/PLA Blends: Manufacturability, Miscibility and Properties (2020) · cites this paper as [12]

    Section 3.2.2 reports melting temperatures near the cited values for the neat polymers, but explicitly says the PBAT melting region overlapped the PLA cold-crystallization region in the blends. Consequently, the paper determined only the PLA melting temperature in the blends, not two separate melting temperatures. (LLM, conf=0.89)

    Checked by a reasoning model — may be wrong.

    Experimental — accuracy not yet measured

  • When the PBAT content increases from 40 to 60 wt.%, the elongation at break increases dramatically.

    “When the PBAT content increases from 40 to 60 wt.%, the elongation at break increases dramatically; the modulus of elasticity and tensile strength decrease slightly [12].”

    From Uncompatibilized PBAT/PLA Blends: Manufacturability, Miscibility and Properties (2020) · cites this paper as [12]

    Section 3.2.4 (page unavailable) reports 325% elongation at break for 40PLA (60 wt.% PBAT) and describes low ductility for 60PLA (40 wt.% PBAT) without chain extender, supporting a substantial increase for those unextended blends. The claim omits the chain-extender condition: the paper reports that adding extender sharply reduces elongation in 40PLA but raises it in 60PLA, so it does not establish the same comparison for all formulations. (LLM, conf=0.78)

    Experimental — accuracy not yet measured

  • PBAT/PLA (60/40) exhibits in MD stratified phases and PBAT is the continuous phase.

    “PBAT/PLA (60/40) exhibits in MD stratified phases and PBAT is the continuous phase”

    From Uncompatibilized PBAT/PLA Blends: Manufacturability, Miscibility and Properties (2020) · cites this paper as [12]

    Section 2.1.2 identifies 40PLA as 40% PLA, and section 3.2.3 says PLA is its dispersed phase, supporting PBAT as the continuous phase. The same section describes elongated, fibrillar PLA structures oriented in the drawing direction (MD), not stratified phases; that description does not establish the claimed stratification. Page numbers were unavailable in our copy. (LLM, conf=0.83)

    Experimental — accuracy not yet measured

  • PBAT/PLA blends generally represent two separated almost unchanged glass transition temperatures (Tg ~ −30 °C and 61 °C) corresponding to those for PBAT and PLA.

    “The PBAT/PLA blends generally represent two separated almost unchanged glass transition temperatures (Tg ~ −30 °C and 61 °C) and two melting temperatures (Tm ~ 120 °C/152 °C) corresponding to those for PBAT and PLA, which is in agreement with the observation of the blends in the literature [12,13].”

    From Uncompatibilized PBAT/PLA Blends: Manufacturability, Miscibility and Properties (2020) · cites this paper as [12]

  • When the PBAT content increases from 40 to 60 wt.%, the modulus of elasticity and tensile strength decrease slightly.

    “When the PBAT content increases from 40 to 60 wt.%, the elongation at break increases dramatically; the modulus of elasticity and tensile strength decrease slightly [12].”

    From Uncompatibilized PBAT/PLA Blends: Manufacturability, Miscibility and Properties (2020) · cites this paper as [12]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

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Cites

Flagged first, then by citations

Research works printed but not linked: 3

  1. S. Sun, M. Zhang, H. Zhang, X. Zhang, Polylactide toughening with epoxy-functionalized grafted acrylonitrileebutadienee styrene par- ticles, Journal of Applied Polymer Science 122 (5) (2011) 2992e2999.
  2. C.D. Han, Rheology and Processing of Polymeric Materials Volume 1: Polymer Technology, Oxford University Press, New York, 2007.
  3. S. Ebnesajjad, Plastic Films in Food Packaging: Materials, Technology and Applications, Elsevier, Amsterdam, 2012.

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Authors
Arruda, L. C., Magaton, M., Bretas, R. E. S., & Ueki, M. M.
Affiliations
  • Universidade Federal de Sergipe (BR)
  • Universidade Federal de São Carlos (BR)
Corresponding author
Arruda, Liliane Cardoso
ORCID
Venue
Polymer Testing
Publisher
Elsevier BV
Published
2015-05
Volume
43
Pages
27-37
ISSN
0142-9418 (ISSN-L)
DOI
10.1016/j.polymertesting.2015.02.005
OpenAlex
W2061537424
Cited by
397
References
29
Citations by year
2026: 30 · 2025: 37 · 2024: 50 · 2023: 35 · 2022: 42 · 2021: 41 · 2020: 41 · 2019: 34 · 2018: 39 · 2017: 23 · 2016: 19 · 2015: 6
FWCI
18.59
Type
journal article
Language
en
Open access
Licence
Locations
Polymer Testing (publishedVersion)
Funders
  • CAPES
  • CNPq (CNPq Processo 558320/2010-4)
  • FAPITEC/SE
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 Foaming and Composites
Keywords
polylactic acid, poly(butylene adipate-co-terephthalate), PLA/PBAT blends, blown film, chain extenders, blend morphology, mechanical properties, thermal properties, interfacial tension, viscosity ratio, biodegradable polymers

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