Biocomposites and Nanocomposites Containing Lignin

Vasile, Cornelia; Cazacu, Georgeta

doi:10.1002/9781118609958.ch23

Cited by 11 publications

(7 citation statements)

References 110 publications

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“…[25] The structure of Lignin is a complex amorphous composition of large macromolecular entities which contains many polar groups. [24] The structural complexity makes it an interesting filler material for study. There have been studies made on the utilization of Lignin for blending with synthetic polymers and bio-based polymers.…”

Section: Introductionmentioning

confidence: 99%

“…They compose 15-30% of dry matter of woody plants and provide structural support and rigidity. [24] In manufacturing, Lignin is primarily produced as a by-product of the paper making process. More than 70 M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT -3 -million tons of Lignin is produced annually but most of it is treated as waste or used for heat generation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of the thermal, dynamic mechanical and morphological properties of PLA-Lignin & PLA-Tannin particulate green composites

Anwer

Naguib

Celzard

2015

Composites Part B: Engineering

120

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of the thermal, dynamic mechanical and morphological properties of PLA-Lignin & PLA-Tannin particulate green composites

Anwer

Naguib

Celzard

2015

Composites Part B: Engineering

120

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“…Lignin use in composites manufacturing is limited by its low solubility and reactivity, high polydispersity, glass-transition temperature (Tg), sulfur content, color, etc. Selection of a suitable lignin type and its deconstruction methods, functionalization/modification, and the incorporation of UV stabilizers can be applied [307,308].…”

Section: Lignin Use In Green Functional/complex Materialsmentioning

confidence: 99%

Lignins as Promising Renewable Biopolymers and Bioactive Compounds for High-Performance Materials

Vasile

Baican

2023

Polymers

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The recycling of biomass into high-value-added materials requires important developments in research and technology to create a sustainable circular economy. Lignin, as a component of biomass, is a multipurpose aromatic polymer with a significant potential to be used as a renewable bioresource in many fields in which it acts both as promising biopolymer and bioactive compound. This comprehensive review gives brief insights into the recent research and technological trends on the potential of lignin development and utilization. It is divided into ten main sections, starting with an outlook on its diversity; main properties and possibilities to be used as a raw material for fuels, aromatic chemicals, plastics, or thermoset substitutes; and new developments in the use of lignin as a bioactive compound and in nanoparticles, hydrogels, 3D-printing-based lignin biomaterials, new sustainable biomaterials, and energy production and storage. In each section are presented recent developments in the preparation of lignin-based biomaterials, especially the green approaches to obtaining nanoparticles, hydrogels, and multifunctional materials as blends and bio(nano)composites; most suitable lignin type for each category of the envisaged products; main properties of the obtained lignin-based materials, etc. Different application categories of lignin within various sectors, which could provide completely sustainable energy conversion, such as in agriculture and environment protection, food packaging, biomedicine, and cosmetics, are also described. The medical and therapeutic potential of lignin-derived materials is evidenced in applications such as antimicrobial, antiviral, and antitumor agents; carriers for drug delivery systems with controlled/targeting drug release; tissue engineering and wound healing; and coatings, natural sunscreen, and surfactants. Lignin is mainly used for fuel, and, recently, studies highlighted more sustainable bioenergy production technologies, such as the supercapacitor electrode, photocatalysts, and photovoltaics.

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“…Over 55% of technical lignin, about 81 million tons annually, is obtained from pulping industries where a kraft process is used [13]. High value-added application of lignin is very limited due to its complex structure with threedimensional network interacting with carbohydrate causing a di culty to be isolated and puri ed [14,15].…”

Section: Introductionmentioning

confidence: 99%

Lignin nanoparticles for sustainable and biodegradable packaging films

Hararak

Winotapun

Prakymoramas

et al. 2022

Preprint

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A simple, green, and scalable procedure to manufacture spherical lignin nanoparticles is demonstrated in this work. Softwood kraft lignin (S-lignin) was fractionated using acetone which was recoverable and reused in the following step to produce lignin nanoparticles (S-LNPs). Deionized water was used as anti-solvent to precipitate S-LNPs under ultrasonication. The size of S-LNPs was found to be in the range from 40-300 nm with an average of 120±18 nm. S-LNPs had lower ash content at 0.05% as compared to 1.22% of S-lignin. More importantly, S-LNPs had significant increased phenolic to aliphatic hydroxyl ratio. Home-composable polybutylene succinate (PBS) was selected to develop sustainable materials for flexible film applications. Composite films of PBS/S-lignin and PBS/S-LNPs were manufactured via conventional blown film melt-extrusion. Both composite films appeared brownish. At 0.5 wt% loading content, the PBS/S-LNPs composite films possessed comparable mechanical properties to the neat PBS film with several advantages including (a) a superb UV-blocking ability of 69% and 64% enhancement in shielding of UV-B and UV-A, respectively; (b) retardation of thermo-oxidative reaction with 42 % improvement in onset oxidative temperature; and (c) antibacterial activity (R) values of 2.5 for gram-negative (E. coli ATCC8739) and 1.5 for gram-positive (S. aureus ATCC 6538p). For a meaningful approach in fully biodegradable and sustainable plastic products, the spherical lignin nanoparticles produced in this work can be alternative multifunctional bio-additives for UV protection, antioxidation and antibacterial applications.

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Biocomposites and Nanocomposites Containing Lignin

Cited by 11 publications

References 110 publications

Comparison of the thermal, dynamic mechanical and morphological properties of PLA-Lignin & PLA-Tannin particulate green composites

Comparison of the thermal, dynamic mechanical and morphological properties of PLA-Lignin & PLA-Tannin particulate green composites

Lignins as Promising Renewable Biopolymers and Bioactive Compounds for High-Performance Materials

Lignin nanoparticles for sustainable and biodegradable packaging films

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