Lignocellulosic Based Bionanocomposites for Different Industrial Applications

Yang, Weijun; Fortunati, Elena; Luzi, Francesca; Kenny, J. M.; Torre, Luigi

doi:10.2174/1385272822666180515120948

Cited by 9 publications

(4 citation statements)

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“…Different nanocomposite-based systems have been realized by combining different polymers (petroleum-based and biodegradable/bio-based), and fillers at the nanoscale level. The nanofillers show strong reinforcing effects, several works have also analyzed their positive behavior in terms of barrier and mechanical properties, characteristics of essential importance in packaging and food packaging applications [24,25].…”

Section: Bio-based Nanofillers In the Packaging Sectormentioning

confidence: 99%

“…The lignocellulosic source is one of the most copious renewable materials existing in the world; these materials are natural, eco-friendly, sustainable, biodegradable, and considered as low-cost materials, with advantageous properties and with a significant value for packaging and industrial sectors. In comparison with petroleum-based natural sources, some interesting advantages are found: (i) low density and low cost, (ii) high variety, (iii) specific modulus and strength, (iv) reactive surfaces that can be changed and functionalized by a large variety of reactive chemical groups, (v) high applicability in nanocomposites, (vi) high recyclability in respect to inorganic fillers [25,26]. Lignocellulosic materials are generally composed by cellulose (40–50 wt %), hemicellulose (20–30 wt %), and lignin (about 10–25 wt %), and the quantities of the different components can be different according to the native lignocellulosic origin source [27].…”

Section: Bio-based Nanofillers In the Packaging Sectormentioning

confidence: 99%

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Bio- and Fossil-Based Polymeric Blends and Nanocomposites for Packaging: Structure–Property Relationship

2019

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In the present review, the possibilities for blending of commodities and bio-based and/or biodegradable polymers for packaging purposes has been considered, limiting the analysis to this class of materials without considering blends where both components have a bio-based composition or origin. The production of blends with synthetic polymeric materials is among the strategies to modulate the main characteristics of biodegradable polymeric materials, altering disintegrability rates and decreasing the final cost of different products. Special emphasis has been given to blends functional behavior in the frame of packaging application (compostability, gas/water/light barrier properties, migration, antioxidant performance). In addition, to better analyze the presence of nanosized ingredients on the overall behavior of a nanocomposite system composed of synthetic polymers, combined with biodegradable and/or bio-based plastics, the nature and effect of the inclusion of bio-based nanofillers has been investigated.

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Section: Bio-based Nanofillers In the Packaging Sectormentioning

confidence: 99%

Section: Bio-based Nanofillers In the Packaging Sectormentioning

confidence: 99%

Bio- and Fossil-Based Polymeric Blends and Nanocomposites for Packaging: Structure–Property Relationship

2019

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“…Lignocellulosic materials, as the most abundant biopolymers and naturally available renewable resources, easily found in territorial plants, have been widely investigated. They are a balanced mixture of lignin, cellulose, hemicellulose and tannins, containing specific functionalities that permit their conversion, as alternative materials to fossil fuels, to biofuels and other organic compounds [ 1 , 2 ]. Lignocellulosic materials have found many applications as reactive filler in various polymers, including thermoplastics, such as polyethylene [ 3 , 4 ], poly (lactic acid) [ 5 , 6 , 7 ], poly (methyl methacrylate) [ 8 , 9 ], polyurethane [ 10 , 11 , 12 ] etc.)…”

Section: Introductionmentioning

confidence: 99%

Effect of Cellulose Nanocrystals and Lignin Nanoparticles on Mechanical, Antioxidant and Water Vapour Barrier Properties of Glutaraldehyde Crosslinked PVA Films

Yang

Kenny

et al. 2020

Polymers

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In this work, PVA nanocomposite films containing cellulose nanocrystals (CNC) and different amounts of lignin nanoparticles (LNP), prepared via a facile solvent cast method, were crosslinked by adding glutaraldehyde (GD). The primary objective was to investigate the effects of crosslinker and bio-based nanofillers loading on thermal, mechanical, antioxidant and water barrier behaviour of PVA nanocomposite films for active food packaging. Thermogravimetric analysis showed improved thermal stability, due to the strong interactions between LNP, CNC and PVA in the presence of GD, while Wide-angle X-ray diffraction results confirmed a negative effect on crystallinity, due to enhanced crosslinking interactions between the nanofillers and PVA matrix. Meanwhile, the tensile strength of PVA-2CNC-1LNP increased from 26 for neat PVA to 35.4 MPa, without sacrificing the ductility, which could be explained by a sacrificial hydrogen bond reinforcing mechanism induced by spherical-like LNP. UV irradiation shielding effect was detected for LNP containing PVA films, also migrating ingredients from PVA nanocomposite films induced radical scavenging activity (RSA) in the produced films in presence of LNP. Furthermore, PVA-CNC-LNP films crosslinked by GD showed marked barrier ability to water vapour.

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“…Hemicellulose is a polysaccharide composed of xylose, glucose, arabinose, mannose and galactose [15]. Cellulose is one of the most important polysaccharides produced in plants from carbon (iv) oxide and water by the process of photosynthesis and are made up of glucose units linked by a -1,4 -glycosidic linkage with a regular network of intra and intermolecular hydrogen bonds [16][17][18][19]. Cellulose with the formula (C6H10O5)n is the chief structural material of plant cell walls which gives the plant rigidity and form.…”

Section: Introductionmentioning

confidence: 99%

Cellulose Nanocrystals Isolated from Bean Seed Hulls: Acetylation and Characterization

Morah,

Okeke,

Anekwe-Nwekeaku

et al. 2023

AJACR

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Bean seed hulls is an agro-waste with abundant content of lignocellulosic materials but are being wasted due to its underutilization. Cellulose nanocrystals (CNCs) were successfully extracted from bean seed hulls using alkali treatment, bleaching and sulphuric acid hydrolysis. Cellulose triacetate (CTA) was obtained from CNCs by acetylation using acetic anhydride with sulphuric acid as catalyst. CNCs is neutral pH whereas CTA is slightly acidic. CNCs was sparingly soluble in ethanol but CTA was completely soluble in ethanol. CTA has a higher melting point than CNCs. The density of both CNCs and CTA is approximately equal to the density of water. SEM analysis revealed that CNCs is irregular and fragmented in nature and has both more large surface area and porosity than CTA. FTIR analysis showed the presence of the dominant functional groups such as O-H stretch, N-H stretch, C-H stretch, C-O stretch and C-N stretch in both CNCs and CTA. GC-MS analysis revealed the presence of the prevalent organic compounds such as alkanes, alcohols, phenols, alkanones, phthalates, carboxylic acids, esters and triterpene in both CNCs and CTA. Therefore, the isolation of CNCs from bean seed hulls suggests great efficacy to recover the under-utilized agro-wastes thereby preventing air pollution.

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Lignocellulosic Based Bionanocomposites for Different Industrial Applications

Cited by 9 publications

References 0 publications

Bio- and Fossil-Based Polymeric Blends and Nanocomposites for Packaging: Structure–Property Relationship

Bio- and Fossil-Based Polymeric Blends and Nanocomposites for Packaging: Structure–Property Relationship

Effect of Cellulose Nanocrystals and Lignin Nanoparticles on Mechanical, Antioxidant and Water Vapour Barrier Properties of Glutaraldehyde Crosslinked PVA Films

Cellulose Nanocrystals Isolated from Bean Seed Hulls: Acetylation and Characterization

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