2020
DOI: 10.1515/epoly-2021-0001
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Composite of polylactic acid and microcellulose from kombucha membranes

Abstract: Polylactic acid (PLA) is one of the main components of biodegradable and biocompatible composites. Bacterial cellulose from kombucha membranes is an excellent candidate to be used as a natural filler of eco-composites because it is renewable, has low cost, low density, and acceptable specific strength properties, and is biodegradable. The study aimed to prepare composites of PLA and bacterial cellulose to produce a biodegradable and compostable material. The bacterial microcellulose was obtained from kombucha … Show more

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Cited by 16 publications
(5 citation statements)
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“…Figure 4 presents the X-ray diffractograms of the different samples. Four signals characteristic of the crystalline peaks of cellulose I can be observed in BNC and AcBNC samples centered at 2θ = 14.9°, 17.2°, 23.1°, and 34.9° in accordance with previous reports [35][36][37]. The fifth signal characteristic of cellulose I samples sometimes reported at 20.5° (usually a low-intensity signal) is not clearly defined in the bacterial nanocelluloses diffractograms.…”
Section: Nanocellulosessupporting
confidence: 83%
See 1 more Smart Citation
“…Figure 4 presents the X-ray diffractograms of the different samples. Four signals characteristic of the crystalline peaks of cellulose I can be observed in BNC and AcBNC samples centered at 2θ = 14.9°, 17.2°, 23.1°, and 34.9° in accordance with previous reports [35][36][37]. The fifth signal characteristic of cellulose I samples sometimes reported at 20.5° (usually a low-intensity signal) is not clearly defined in the bacterial nanocelluloses diffractograms.…”
Section: Nanocellulosessupporting
confidence: 83%
“…Tensile strength depends on the interaction between the components, which determines stress transfer from the matrix to the filler, and also on the filler dispersion within the matrix. The results obtained herein indicate an insufficient matrix ability for stress transfer to the hydrophilic fillers poorly dispersed in the hydrophobic polymer matrix [37,41]. A decreasing trend of strength with filler content was also observed-especially for bacterial nanocellulose composites-attributed to an increasing content of poorly dispersed filler.…”
Section: Pla/nanocelluloses Compositesmentioning
confidence: 63%
“…As we can clearly see, the addition of 7% AC microcrystalline cellulose shows a good adhesion and compatibility between PLA and AC, the morphological surface of this composite does not show any fractures, unlike composites filled with 4 and at 10% AC. The surface fracture observed for the composites filled with 4 and 10% AC, indicating poor interfacial interaction between PLA and MCC (Arteaga-Ballesteros et al, 2021;Paul et al, 2021).…”
Section: Optical and Scanning Electron Microscopymentioning
confidence: 96%
“…The Young's modulus of composites was raised due to the increased effective interface contact area caused by good dispersion [38]. As a result of the further increase in SA loading, the agglomeration and microstructure discontinuity increased, resulting in a gradual decrease in Young's modulus [39,40]. Due to the thermodynamic incompatibility and phase separation between SA and PBS, which limited the transfer of interface effective stress, the tensile strength and the elongation at break of the composites declined progressively with increasing SA loading [9].…”
Section: Mechanical Propertiesmentioning
confidence: 99%