Rheological and thermal characterization of PCL/PBAT blends

Sousa, Fernanda M.; Costa, Anna Raffaela M.; Reul, Lizzia Tanira Albuquerque; Cavalcanti, Felipe B.; Carvalho, Laura H.; Almeida, Tatiara G.; Canedo, Eduardo L.

doi:10.1007/s00289-018-2428-5

Cited by 43 publications

(26 citation statements)

References 38 publications

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“…These particles could correspond to the additives of the MB matrix (including PCL) and that have been retained within the PBAT phase, whose purpose is precisely to improve the compatibility between PBAT and TPS [5,8]. In addition, this hypothesis coincides with the fact that PCL has a strong interaction with PBAT matrix [43]. Moreover, it is compatible with the TPS phase [44].…”

Section: Dynamic Thermo-mechanical Analysis (Dtma) Characterizationmentioning

confidence: 87%

A Deeper Microscopic Study of the Interaction between Gum Rosin Derivatives and a Mater-Bi Type Bioplastic

et al. 2020

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The interaction between gum rosin and gum rosin derivatives with Mater-Bi type bioplastic, a biodegradable and compostable commercial bioplastic, were studied. Gum rosin and two pentaerythritol esters of gum rosin (Lurefor 125 resin and Unik Tack P100 resin) were assessed as sustainable compatibilizers for the components of Mater-Bi® NF 866 polymeric matrix. To study the influence of each additive in the polymeric matrix, each gum rosin-based additive was compounded in 15 wt % by melt-extrusion and further injection molding process. Then, the mechanical properties were assessed, and the tensile properties and impact resistance were determined. Microscopic analyses were carried out by field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM) and atomic force microscopy with nanomechanical assessment (AFM-QNM). The oxygen barrier and wettability properties were also assayed. The study revealed that the commercial thermoplastic starch is mainly composed of three phases: A polybutylene adipate-co-terephthalate (PBAT) phase, an amorphous phase of thermoplastic starch (TPSa), and a semi-crystalline phase of thermoplastic starch (TPSc). The poor miscibility among the components of the Mater-Bi type bioplastic was confirmed. Finally, the formulations with the gum rosin and its derivatives showed an improvement of the miscibility and the solubility of the components depending on the additive used.

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Section: Dynamic Thermo-mechanical Analysis (Dtma) Characterizationmentioning

confidence: 87%

A Deeper Microscopic Study of the Interaction between Gum Rosin Derivatives and a Mater-Bi Type Bioplastic

et al. 2020

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“…Parameters for melting of PE and PP compounds were obtained using custom software. The detailed methodology has been previously reported in Canedo et al [14] and widely tested in the literature [15][16][17][18]. The percentage crystallinities of LDPE and PP in blends were calculated using the relationship:…”

Section: Morphology and Microstructurementioning

confidence: 99%

Morphology/tensile Performance Relationship for LLDPE/PP Double Gated Injected Blends

Rosales

Brendstrup²,

Bernal³

et al. 2020

Adv. Mater. Lett.

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“…Taking this into consideration, co-polyesters have been synthesized by melt polycondensation and melt transesterification reactions of poly(butylene adipate) (PBA) and poly(butylene terephthalate) (PBT) under the generic name of polybutylene adipate-co-terephthalate (PBAT) [22,23]. PBAT is a biodegradable synthetic aliphatic-aromatic thermoplastic co-polyester with low crystallinity [24,25]. PBAT have similar thermal and mechanical properties to some polyethylenes and present more flexibility than other biodegradable biopolyesters (i.e., PLA and PHB), which make it suitable for packaging applications [22].…”

Section: Introductionmentioning

confidence: 99%

Improvement of PBAT Processability and Mechanical Performance by Blending with Pine Resin Derivatives for Injection Moulding Rigid Packaging with Enhanced Hydrophobicity

et al. 2020

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Polybutylene adipate-co-terephthalate (PBAT) is a biodegradable polymer with good features for packaging applications. However, the mechanical performance and high prices of PBAT limit its current usage at the commercial level. To improve the properties and reduce the cost of PBAT, pine resin derivatives, gum rosin (GR) and pentaerythritol ester of GR (UT), were proposed as sustainable additives. For this purpose, PBAT was blended with 5, 10, and 15 wt.% of additives by melt-extrusion followed by injection moulding. The overall performance of the formulations was assessed by tensile test, microstructural, thermal, and dynamic mechanical thermal analysis. The results showed that although good miscibility of both resins with PBAT matrix was achieved, GR in 10 wt.% showed better interfacial adhesion with the PBAT matrix than UT. The thermal characterization suggested that GR and UT reduce PBAT melting enthalpy and enhance its thermal stability, improving PBAT processability. A 10 wt.% of GR significantly increased the tensile properties of PBAT, while a 15 wt.% of UT maintained PBAT tensile performance. The obtained materials showed higher hydrophobicity than neat PBAT. Thus, GR and UT demonstrated that they are advantageous additives for PBAT–resin compounding for rigid food packaging which are easy to process and adequate for industrial scalability. At the same time, they enhance its mechanical and hydrophobic performance.

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Rheological and thermal characterization of PCL/PBAT blends

Cited by 43 publications

References 38 publications

A Deeper Microscopic Study of the Interaction between Gum Rosin Derivatives and a Mater-Bi Type Bioplastic

A Deeper Microscopic Study of the Interaction between Gum Rosin Derivatives and a Mater-Bi Type Bioplastic

Morphology/tensile Performance Relationship for LLDPE/PP Double Gated Injected Blends

Improvement of PBAT Processability and Mechanical Performance by Blending with Pine Resin Derivatives for Injection Moulding Rigid Packaging with Enhanced Hydrophobicity

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