Impact of Samarium Acetylacetonate Catalyst on the Compatibilization of Poly(lactic acid)/Poly(ethylene-co-vinyl acetate) Blends: Thermomechanical, Chemical, and Viscoelastic Characterizations

Aouadi, N. E.-H.; Hellati, A.; Guessoum, Melia; Mourad, Abdel‐Hamid I.; Nizamudeen, C.

doi:10.1134/s1560090421030027

Cited by 1 publication

(1 citation statement)

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“…10 Besides, Gigante et al 11 investigated the properties of PLA/poly(butylene adipate-co-terephthalate) (PBAT) blend and noticed a considerable improvement of the elongation at break and Charpy impact resistance which attained, respectively 200% and 9 kJ/m 2 , for the mixture with up to 25% of PBAT. Similarly, Aouadi et al 12 assessed the performances of (70/30) PLA/EVA blends with EVA containing variable vinyl acetate contents and compatibilized the mixture using catalyzed transesterification reactions. They observed that PLA/EVA blend with 25% of vinyl acetate reveals the higher tensile properties and the lower crystallinity.…”

Section: Introductionmentioning

confidence: 99%

Upgrading the properties of polylactic acid/luffa fiber biocomposites through the addition of maleic anhydride grafted styrene–ethylene–butylene–styrene impact modifier

Rahem,

Mayouf,

Guessoum

2024

Polymers for Advanced Techs

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To enhance the adhesion at the interface between polylactic acid (PLA) and local luffa fibers (LFs), and improve the properties of these fully biodegradable biocomposites, 10% of maleic anhydride grafted Styrene–ethylene–butylene–styrene (SEBS‐g‐MA) is added to act concomitantly as compatibilizer and toughening agent. PLA/LF and PLA/SEBS‐g‐MA/LF biocomposite materials were manufactured by melt mixing and then characterized by torque assessment, Fourier transform‐infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and Izod impact test. In accordance with SEM observation, FTIR analysis and torque measurements, the interfacial bonding coupling the PLA chains to LF via SEBS backbones resulted from the chemical reactions between the functional groups of the composites components. This contributed in increasing notably the impact resistance and the thermal stability compared with the biocomposites without SEBS‐g‐MA. In addition, the improvement of the impact strength might be induced by the flexible ethylene‐butylene blocks, which act as impact absorbers due to their rubber‐like behavior.

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Section: Introductionmentioning

confidence: 99%