Optimizing interfacial adhesion in PBAT/PLA nanocomposite for biodegradable packaging films

Qiu, Shuo; Zhou, Yikai; Waterhouse, Geoffrey I. N.; Gong, Ruizhi; Xie, Jiazhuo; Zhang, Kun; Xu, Jing

doi:10.1016/j.foodchem.2020.127487

Cited by 129 publications

(61 citation statements)

References 32 publications

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“…A wide plethora of biodegradable polymers, such as polysaccharides, proteins, and lipids, were proposed as suitable materials for thin-film preparation [6,12,13]. In this context, poly(butylene adipate-co-terephthalate) (PBAT) is an aliphatic/aromatic copolyester that is biodegradable and compostable and, due to its interesting properties, is considered among the most promising biopolymers for packaging film, agricultural film, and compost bag fabrication [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…In order to overcome these issues, several approaches can be considered, such as improving the material melt strength by adopting viscosity enhancers [25], or the addition of different kinds of fillers likely able to concurrently improve the final properties as well as the processability of the blown films [14,15,[26][27][28]. Both of these methods permit the mechanical and physical properties of biopolymers to be controlled in a relatively simple and potentially industrially scalable way [29,30].…”

Section: Introductionmentioning

confidence: 99%

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Use of Biochar as Filler for Biocomposite Blown Films: Structure-Processing-Properties Relationships

et al. 2021

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In this work, biocomposite blown films based on poly(butylene adipate-co-terephthalate) (PBAT) as biopolymeric matrix and biochar (BC) as filler were successfully fabricated. The materials were subjected to a film-blowing process after being compounded in a twin-screw extruder. The preliminary investigations conducted on melt-mixed PBAT/BC composites allowed PBAT/BC 5% and PBAT/BC 10% to be identified as the most appropriate formulations to be processed via film blowing. The blown films exhibited mechanical performances adequate for possible application as film for packaging, agricultural, and compost bags. The addition of BC led to an improvement of the elastic modulus, still maintaining high values of deformation. Water contact angle measurements revealed an increase in the hydrophobic behavior of the biocomposite films compared to PBAT. Additionally, accelerated degradative tests monitored by tensile tests and spectroscopic analysis revealed that the filler induced a photo-oxidative resistance on PBAT by delaying the degradation phenomena.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Use of Biochar as Filler for Biocomposite Blown Films: Structure-Processing-Properties Relationships

et al. 2021

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“…The previous assays on the contribution of POSSs to the amelioration of physical properties confirm the availability of this class kind of fillers for the interaction between these inorganic particles and macromolecular chains or segments, dropping down the shortcomings of fast thermal aging. A comprehensive analysis on the concern of POSS in the degradation of polymer support, such as polyurethane foam [ 14 ] or PBAT/PLA [ 15 ], emphasizes the implication of filler in the stability of polymer substrate.…”

Section: Introductionmentioning

confidence: 99%

Stability Efficiencies of POSS and Microalgae Extracts on the Durability of Ethylene-Propylene-Diene Monomer Based Hybrids

Zaharescu¹,

Mateescu²

2022

Polymers

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The EPDM (ethylene-propylene-diene monomer) hybrids with improved thermal and radiation strengths containing 1 and 5 phr of polyhedral oligomeric silsesquioxane (vinyl-POSS, Ov-POSS) and/or 2 phr of microalgae (Chlorella vulgaris (CV) and Spirulinaplatensis (SP)) powders were investigated in respect to their thermal stability after γ-irradiation. The material durability under accelerated degradation was qualified by chemiluminescence and gelation, which prove the contribution of inorganic filler and microalgae extracts on the increase of hybrid thermal stability, as well as the interaction between added components (POSS and CV or SP). The activation energies and the durabilities under accelerated degradation were calculated, indicating their suitable usage as appropriate materials in various applications. The reported results indicate the improvement effect of both microalgal powders on the oxidation strength, but the contribution of Spirulinaplatensis grabs attention on its efficient effects upon the prevention of degradation under accelerated aging conditions. The thermal performances of the tested EPDM based hybrids are remarkably ameliorated, if the certain formulation includes Ov-POSS (5 phr) and Spirulinaplatensis (2 phr), certifying its suitability for the pertinent applications.

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“…Recently, aliphatic-aromatic copolyesters (AACs) among biodegradable polymers have been accurately designated for toughening PLA-based biodegradable nanocomposites since the balance between biodegradability and desirable physical properties of AACs can be tailored by controlling the molar ratio of comonomers [14][15][16][17]. Poly (butylene adipate-coterephthalate) (PBAT), a highly flexible biodegradable aliphatic-aromatic copolyester, has been blended with PLA to improve the flexibility and processability of PLA for biodegradable functional packaging applications [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Shear-Induced and Nanofiber-Nucleated Crystallization of Novel Aliphatic–Aromatic Copolyesters Delineated for In Situ Generation of Biodegradable Nanocomposites

Hosseinnezhad

2021

Polymers

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The shear-induced and cellulose-nanofiber nucleated crystallization of two novel aliphatic–aromatic copolyesters is outlined due to its significance for the in situ generation of biodegradable nanocomposites, which require the crystallization of nanofibrous sheared inclusions at higher temperatures. The shear-induced non-isothermal crystallization of two copolyesters, namely, poly(butylene adipate-co-succinate-co-glutarate-co-terephthalate) (PBASGT) and poly(butylene adipate-co-terephthalate) (PBAT), was studied following a light depolarization technique. To have a deep insight into the process, the effects of the shear rate, shear time, shearing temperature and cooling rate on the initiation, kinetics, growth and termination of crystals were investigated. Films of 60 μm were subjected to various shear rates (100–800 s−1) for different time intervals during cooling. The effects of the shearing time and increasing the shear rate were found to be an elevated crystallization temperature, increased nucleation density, reduced growth size of lamella stacks and decreased crystallization time. Due to the boosted nucleation sites, the nuclei impinged with each other quickly and growth was hindered. The effect of the cooling rate was more significant at lower shear rates. Shearing the samples at lower temperatures, but still above the nominal melting point, further shifted the non-isothermal crystallization to higher temperatures. As a result of cellulose nanofibers’ presence, the crystallization of PBAT, analyzed by DSC, was shifted to higher temperatures.

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Optimizing interfacial adhesion in PBAT/PLA nanocomposite for biodegradable packaging films

Cited by 129 publications

References 32 publications

Use of Biochar as Filler for Biocomposite Blown Films: Structure-Processing-Properties Relationships

Use of Biochar as Filler for Biocomposite Blown Films: Structure-Processing-Properties Relationships

Stability Efficiencies of POSS and Microalgae Extracts on the Durability of Ethylene-Propylene-Diene Monomer Based Hybrids

Shear-Induced and Nanofiber-Nucleated Crystallization of Novel Aliphatic–Aromatic Copolyesters Delineated for In Situ Generation of Biodegradable Nanocomposites

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