ELECTROSPINNING PBAT (POLY (BUTYLENE-ADIPATE-CO-TEREPHTHALATE))/PCL (POLY(ε-CAPROLACTONE) BLEND CONTAINING PROPOLIS FOR THE PREPARATION OF a SMART WOUND DRESSING

Zanella, Heloisa G.; Rossin, Ariane R. de S.; Hardt, Janice Caroline; Rosenberger, Andressa Giombelli; Wiggers, Juliana; Caetano, Josiane; Dragunski, Douglas Cardoso

doi:10.21577/0100-4042.20170787

Cited by 3 publications

(3 citation statements)

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“…Further, PBAT is suitable for electrospinning and therefore for wound dressing [13,[18][19][20]. The mechanical behaviour of PBAT is similar to that of thermoplastic elastomers.…”

Section: Introductionmentioning

confidence: 92%

Poly (ε‐caprolactone)/polybutylene adipate terephthalate/hydroxyapatite blend nanocomposites: Morphology-thermal degradation kinetics relationship

Bolourian,

Khasraghi,

Zarei

et al. 2024

Preprint

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Polycaprolactone/polybutylene adipate terephthalate blends (PCL/PBAT) (90/10, 75/25, and 50/50 wt/wt) containing 1, 3, and 5 phr hydroxyapatite (HA) nanoparticles were prepared using solvent casting technique. Scanning electron microscopic studies confirmed a homogeneous morphology for the blends and nanocomposites. Some agglomeration can be recognized using Energy dispersive spectroscopy (EDS) mapping in the blends containing 5 phr HA. The DSC results confirmed the presence of nanoparticles in each phase, particularly in the crystalline region, as well wetting coefficient confirmed the localization of nanoparticles at the interface. Thermal stability and degradation kinetics were analyzed using thermogravimetric analysis (TGA). Based on the TGA results, a multi-step degradation process resulted in the blends and blend nanocomposites and the PCL/PBAT blends showed better thermal stability and exhibited higher Tmax and residual mass. PCL/PBAT blends were more stable at higher temperatures compared to PCL and PBAT. Various kinetics evaluation techniques, including Friedman, Flynn-Ozawa-Wall, and Kissinger-Akahira-Sunose methods, were utilized to determine the activation energy of degradation. PCL/PBAT blends were more difficult to thermally degrade and showed the highest degradation activation energy. Incorporating HA led to lower thermal stability and, therefore, lower degradation activation energy. Incorporation of only 5 phr of HA resulted in greater thermal stability at higher temperatures (T90%).

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“…Further, PBAT is suitable for electrospinning and therefore for wound dressing [13,[18][19][20]. The mechanical behaviour of PBAT is similar to that of thermoplastic elastomers.…”

Section: Introductionmentioning

confidence: 92%

Poly (ε‐caprolactone)/polybutylene adipate terephthalate/hydroxyapatite blend nanocomposites: Morphology-thermal degradation kinetics relationship

Bolourian,

Khasraghi,

Zarei

et al. 2024

Preprint

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“…It shows mechanical properties similar to low‐density polyethylene although showing high degradation capabilities; Ecoflex, a PBAT grade produced by BASF, degrades 99.9% in 22 days in compost. [ 12 ] Recently, PBAT has been proposed for producing scaffolding material mixed with various natural and synthetic polymers, [ 13,14 ] and used as a composite with bioceramics such as hydroxyapatite and nanoclays. [ 15,16 ] In these studies, PBAT scaffolds have been obtained by solvent evaporation, solvent casting‐particle leaching, melt molding‐particle leaching, [ 17 ] spin coating, [ 15 ] and electrospinning methods.…”

Section: Introductionmentioning

confidence: 99%

PBAT/PLA Films and Supercritical Impregnation of Caffeine for Potential Application in Anticellulite Tools

Liparoti,

Mottola,

De Marco

et al. 2023

Macro Materials & Eng

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Topical administration is the preferred route for the controlled release of active compounds since it reduces side effects typical of other administration methods. The use of polymer blends is a way to modulate drug release from a topical device. The blends ensure modulation of a wide range of properties, such as mechanical properties, water sorption, and degradation. This paper proposes blends of poly(lactide acid) (PLA), and Poly(butylene adipate‐co‐terephthalate) (PBAT), for the topical release of caffeine, a molecule with anti‐inflammatory, antioxidant, and anticellulite activities. PBAT/PLA blends are optimized for compatibility between the two polymers, mechanical properties, and drug release rate. Blends with a higher amount of PBAT show the best performance regarding polymer compatibility. The blends undergo supercritical CO2‐assisted caffeine impregnation. This process assures homogeneous dispersion of caffeine into the polymer matrix. The ratios 45/55 and 55/45 PBAT/PLA show the best performance in terms of caffeine release (complete caffeine release within 25 h). Caffeine is released into three steps: a burst effect due to the caffeine dispersed over the film surface, a slower release due to the caffeine dispersed in the polymer matrix, and a fast release due to the increase of polymer degradation rate induced by caffeine presence.

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“…The results indicated that the obtained materials can constitute possible delivery systems for food packaging applications. Zanella et al [20] analysed fibres consisting of a poly(butylene-adipate-co-terephthalate)/poly(ε-caprolactone) blend with the addition of propolis. Electrospun fibre membranes based on polylactide and dichloromethane extracts of propolis were studied by Yan et al [21].…”

Section: Introductionmentioning

confidence: 99%

Polylactide-Based Films with the Addition of Poly(ethylene glycol) and Extract of Propolis—Physico-Chemical and Storage Properties

Olewnik-Kruszkowska

Gierszewska

Wrona

et al. 2022

Foods

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Polymeric films based on polylactide (PLA) with the addition of poly(ethylene glycol) (PEG) and a chloroformic extract of propolis were obtained. In the case of the studied films, polylactide (PLA) played the role of polymeric matrix and poly(ethylene glycol) was used as a plasticizer, while the extract of propolis was incorporated as a compound that could significantly affect the properties of the obtained materials, especially the water vapour permeation rate and the stability of the food products. Moreover, changes in structure, morphology, mechanical and storage properties as well as differences in colour, thickness and transparency after introducing propolis into the PLA–PEG system were determined. Based on the obtained results, it was established that the addition of the chloroformic extract of propolis significantly influences the most important properties taken into account during food packaging. It was also noticed that films with incorporated propolis were characterised by a significant improvement in the water vapour barrier property. Moreover, the obtained results prove that packaging containing a chloroformic propolis extract allow for the maintenance of the quality of the fruit stored for an extended period of time. To summarise, the application of a chloroformic propolis extract enables the formation of packaging materials that extend the shelf life of stored food products.

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ELECTROSPINNING PBAT (POLY (BUTYLENE-ADIPATE-CO-TEREPHTHALATE))/PCL (POLY(ε-CAPROLACTONE) BLEND CONTAINING PROPOLIS FOR THE PREPARATION OF a SMART WOUND DRESSING

Cited by 3 publications

References 0 publications

Poly (ε‐caprolactone)/polybutylene adipate terephthalate/hydroxyapatite blend nanocomposites: Morphology-thermal degradation kinetics relationship

Poly (ε‐caprolactone)/polybutylene adipate terephthalate/hydroxyapatite blend nanocomposites: Morphology-thermal degradation kinetics relationship

PBAT/PLA Films and Supercritical Impregnation of Caffeine for Potential Application in Anticellulite Tools

Polylactide-Based Films with the Addition of Poly(ethylene glycol) and Extract of Propolis—Physico-Chemical and Storage Properties

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