Influence of Gamma Radiation on the Properties of Biodegradable PBAT – Poly (butylene Adipate co‐terephthalate) Active Films with Orange Essential Oil

Andrade, Michelle Félix de; Filho, Luiz Emílio Pessôa Timeni de Moraes; Silva, Ivo Diego de Lima; Lima, Jéssica Camilla da Costa; Carvalho, Laura H.; Almeida, Yêda Medeiros Bastos de; Vinhas, Glória Maria

doi:10.1002/masy.202000057

Cited by 6 publications

(1 citation statement)

References 20 publications

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“…Dentre os polímeros comerciais, o PBAT torna-se um excelente material para ser utilizado em embalagens ativas devido às suas ótimas propriedades mecânicas e térmicas, que o fazem ser capaz de formar filmes (Andrade et al, 2020).…”

Section: Introductionunclassified

Estudo da biodegradação do Poli(butileno adipato co-tereftalato) (PBAT) com óleo essencial de manjericão exótico em lodo anaeróbio)

Souza

Silva

Avellar

et al. 2022

RSD

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O presente artigo teve como objetivo avaliar a biodegradação de filmes de Poli(butileno adipato co-tereftalato) (PBAT) e PBAT aditivado com óleo essencial de manjericão exótico (OEM), usando o filme de polietileno como amostra padrão, por um período de 15 meses por digestão anaeróbia, em lodo proveniente de Estação de Tratamento de Esgoto. A evolução da degradação dos filmes foi quantificada através da perda de massa e de espessura ao longo do tempo. Também foi avaliado a viabilidade das Bactérias Produtoras de Ácido, Bactérias Anaeróbias Heterotróficas, Pseudomonas aeruginosa e Bactérias Aeróbias Heterotróficas. Quanto à variação de massa, o filme de polietileno não apresentou variação significativa, enquanto os filmes de PBAT, com e sem óleo essencial de manjericão exótico, apresentaram variação. A variação de espessura mostrou-se estatisticamente nula para os filmes de polietileno e PBAT puro, enquanto os de PBAT/OEM exibiu uma pequena perda. Em relação aos micro-organismos presentes no lodo, inicialmente o lodo apresentou baixa carga microbiana e, com o passar do tempo, foi constatado o crescimento de micro-organismos aeróbios no meio. Ao final do experimento, verificou-se a presença majoritária de Bactérias Aeróbias Heterotróficas. Como também foi possível inferir que os filmes de PBAT, assim como o PBAT/OEM sofreram perda de massa como indício de degradação dos filmes, ao longo do tempo de exposição no lodo, com destaque para o filme aditivado com OEM.

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Section: Introductionunclassified

Estudo da biodegradação do Poli(butileno adipato co-tereftalato) (PBAT) com óleo essencial de manjericão exótico em lodo anaeróbio)

Souza

Silva

Avellar

et al. 2022

RSD

Self Cite

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Effect of angular variation and in vitro degradation on mechanical properties of PBAT 3D scaffolds

de Barros,

de Souza Balbinot,

Vassoler

et al. 2024

J of Applied Polymer Sci

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The customization of polymeric prototypes is available to meet the specific needs of individual patients, considering tissue location and patient‐specific characteristics. Poly (butylene adipate‐co‐terephthalate) (PBAT) has shown great promise among various polymers in this scenario due to its biodegradability and processability properties. However, the effect of geometry changes on the mechanical properties of PBAT 3D scaffolds and their mechanical stability after in vitro degradation are crucial to determining the final application. This study focuses on the structural, morphological, and mechanical characterization of PBAT prototypes with different architectures and evaluating their mechanical properties before and after in vitro degradation. Three‐dimensional structures were 3D printed with rectilinear deposition angles of 15°, 30°, 45°, 60°, 75°, and 90°. Mechanical tests revealed that the prototype architecture influenced the stiffness, elongation, and maximum tension, where a greater resistance was observed for filaments containing the lowest angles. The thermal stability of PBAT remained unaffected either by reprocessing or hydrolytic degradation; however, in vitro degradation affected the mechanical behavior by increasing the stiffness and decreasing the elongation of the scaffold. Biological assays have demonstrated the nontoxic nature of PBAT and its potential to promote cell viability at a rate of 95%. These findings underscore the possibility of optimizing the PBAT design and structure to tune the mechanical properties and contribute to advancing tissue engineering strategies.

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A comparison of physical, morphological, and mechanical properties of bio‐polyester hybrid nanocomposites

Rath,

Krishnan,

Kanny

2024

Polymers for Advanced Techs

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It is imperative to improve the physical, morphological, and mechanical properties of biodegradable polymers like polylactic acid (PLA), poly (butylene adipate‐co‐terephthalate) (PBAT), and polycaprolactone (PCL) in order to employ them on a larger scale. The development of hybrid nanocomposite materials using nano inclusions can improve desired qualities. Here we introduced an interactive nano reinforcement approach to improve the properties by combining graphene oxide (GO) and carboxyl functionalized MWCNT (f‐MWCNT), to provide for their chemical bonding for synergic reinforcement. A constant filler 2 wt.% was added to the biopolyesters by melt blending process and examined the different physical properties like water absorption, intrinsic viscosity, and hardness. To completely evaluate the functionalization of the nanofillers, wide‐angle X‐ray diffraction (WAXD), Raman spectroscopy and Fourier transform infrared radiation (FTIR) analyses were used. The paired nanoparticles and polymer matrix appear to mix well together, as shown by electron microscopy, which also reveals good dispersion and the creation of a reinforcing network microstructure across the matrix layer. A thorough analysis of the results showed that effective stress transmission, delaying the start of faults and generating microcracks, and dissipating additional mechanical energy all contributed to efficient hybrid network formation, which improved the mechanical properties of hybrid filler nanocomposites except some nanocomposites. These findings offer a viable technique for chemically altering biodegradable polymers, like PLA, PBAT, and PCL for use in biomedical, wastewater management, and agricultural applications.

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Influence of Gamma Radiation on the Properties of Biodegradable PBAT – Poly (butylene Adipate co‐terephthalate) Active Films with Orange Essential Oil

Cited by 6 publications

References 20 publications

Estudo da biodegradação do Poli(butileno adipato co-tereftalato) (PBAT) com óleo essencial de manjericão exótico em lodo anaeróbio)

Estudo da biodegradação do Poli(butileno adipato co-tereftalato) (PBAT) com óleo essencial de manjericão exótico em lodo anaeróbio)

Effect of angular variation and in vitro degradation on mechanical properties of PBAT 3D scaffolds

A comparison of physical, morphological, and mechanical properties of bio‐polyester hybrid nanocomposites

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