Structural and morphological characterization of bacterial cellulose nano-reinforcements prepared by mechanical route

Panaitescu, Denis Mihaela; Frone, Adriana Nicoleta; Chiulan, Ioana; Cășărică, Angela; Nicolae, Cristian‐Andi; Ghiurea, Marius; Trușcă, Roxana; Damian, Celina Maria

doi:10.1016/j.matdes.2016.08.052

Cited by 58 publications

(42 citation statements)

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“…Because bacterial cellulose begins to degrade at a lower temperature (290 C) than PLA (350 C) (Panaitescu et al 2016b), TGA was performed to investigate the influence of different concentrations of BCNF on the thermal stability of nanocomposites. Figure 2a shows that the thermal stability of PLA nanocomposites was not reduced by BCNF, regardless of its concentration.…”

Section: Thermal and Thermo-mechanical Behavior Of Pla/bcnfmentioning

confidence: 99%

“…Cellulose micro-and nano-reinforcements have been extensively studied to improve PLA properties (Tawakkal et al 2012;Frone et al 2013;Indarti et al 2016). Bacterial cellulose (BC) is a promising reinforcing material in aliphatic polyesters for biomedical and packaging applications Panaitescu et al 2016b). PLA/BC laminated composites have been prepared by sinking the dried BC pellicles in a PLA solution in chloroform (Kim et al 2009) or by compression molding BC strips between two PLA films (Quero et al 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Wider processing possibilities and improved mechanical properties may be obtained by dispersing individual BC nanofibers (BCNF) in PLA. The fine dispersion of BCNF in PLA and other hydrophobic polymers is difficult due to the strong bonds between nanofibers in the BC pellicle and their hydrophilic character, opposite to the hydrophobicity of the matrix (Panaitescu et al 2016b).…”

Section: Introductionmentioning

confidence: 99%

“…BCNF were obtained in a previous work by mechanical disintegration, using two approaches (Panaitescu et al 2016b). BCNF prepared by wet disintegration, followed by freeze drying and dry mechanical treatment (Panaitescu et al 2016b), were incorporated in different amounts in PLA using a melt processing technique.…”

Section: Introductionmentioning

confidence: 99%

“…BCNF prepared by wet disintegration, followed by freeze drying and dry mechanical treatment (Panaitescu et al 2016b), were incorporated in different amounts in PLA using a melt processing technique. The effect of different amounts of BCNF on the morphology, thermal, and mechanical properties of PLA nanocomposites was studied in this paper.…”

Section: Introductionmentioning

confidence: 99%

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Biocomposites from Polylactic Acid and Bacterial Cellulose Nanofibers Obtained by Mechanical Treatment

et al. 2016

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Bacterial cellulose nanofibers (BCNF), obtained by the mechanical disintegration of BC pellicles, were used without any surface treatment for the fabrication of poly(lactic acid) (PLA) nanocomposites by a melt compounding process. The addition of BCNF in different amounts improved both the Young's modulus and tensile strength of PLA. A 22% increase in these properties was observed in the nanocomposite with 2 wt.% nanofibers, due to the BCNF network formed at this concentration and characterized by atomic force microscopy. BCNF addition also increased the crystallinity and thermal stability of PLA, which were evaluated by thermal analysis. Due to the high purity of BCNF and the environmental friendliness of melt processing, it was concluded that PLA/BCNF nanocomposites can be designed for biomedical field and food packaging.

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Section: Thermal and Thermo-mechanical Behavior Of Pla/bcnfmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biocomposites from Polylactic Acid and Bacterial Cellulose Nanofibers Obtained by Mechanical Treatment

et al. 2016

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Surface properties, thermal, and mechanical characteristics of poly(vinyl alcohol)–starch‐bacterial cellulose composite films

Chiulan

Frone

Panaitescu

et al. 2017

J of Applied Polymer Sci

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Nanocomposite films for food packaging applications were developed using bacterial cellulose (BC) nanofibers in different amount in a poly(vinyl alcohol)/starch (PVA/St) matrix. In search of a better method to reduce the harmful ingredients in food packaging, the cellulose nanofibers were obtained by the mechanical defibrillation of BC pellicles thus avoiding the addition of chemicals in the final packaging material. Improved mechanical performances were obtained starting from just 1% BC nanofibers in PVA/St. Atomic force microscopy images showed a uniform dispersion of BC nanofibers on the surface of nanocomposites. A twofold increase of both tensile strength and modulus was obtained for 2 wt % BC in the composite. BC nanofibers have greatly improved the barrier properties of PVA/St matrix, a twofold increase of water vapor permeability being obtained for only 2 wt % BC nanofibers in the composite film. PVA/St/2BC was proposed as a high potential material for food packaging applications. V C 2017 Wiley Periodicals, Inc. J.Appl. Polym. Sci. 2018, 135, 45800.

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Bacterial cellulose: A comprehensive review

Girard,

Chaussé,

Vermette

2024

J of Applied Polymer Sci

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This review article provides a comprehensive overview of bacterial cellulose (BC), focusing on its physicochemical properties, production methods, purification techniques, and applications. It aims at providing a nuanced understanding of the current state of knowledge in those fields and bridging the gap between academic research and industrial applications. The physicochemical properties of BC, including its chemical structure, morphology, thermal properties, mechanical properties (such as tensile and compression properties), specific surface area, cytotoxicity, and biocompatibility, are discussed. Production methods of BC, including microorganism comparison, culture conditions, and vessel types, are thoroughly explored. Purification methods and sterilization techniques for BC are also addressed. Furthermore, the review highlights industries and applications that have shown interest in BC along with commercially available products, including medical, cosmetic, textile, food ingredients, and scaffolds in cell culture. A conclusion summarizes key findings and potential future directions in BC research and development.

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Structural and morphological characterization of bacterial cellulose nano-reinforcements prepared by mechanical route

Cited by 58 publications

References 50 publications

Biocomposites from Polylactic Acid and Bacterial Cellulose Nanofibers Obtained by Mechanical Treatment

Biocomposites from Polylactic Acid and Bacterial Cellulose Nanofibers Obtained by Mechanical Treatment

Surface properties, thermal, and mechanical characteristics of poly(vinyl alcohol)–starch‐bacterial cellulose composite films

Bacterial cellulose: A comprehensive review

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