What question did this study set out to answer?

To develop a scalable, green fabrication method for spherical lignin nanoparticles and evaluate their performance as multifunctional bio-additives in biodegradable packaging films.

March 23, 2022Open Access

Lignin nanoparticles for sustainable and biodegradable packaging films

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Authors

BHBongkot HararakNational Science and Technology Development Agency CWCharinee WinotapunPTT Public Company Limited (Thailand)NPNatcha PrakymoramasThailand National Metal and Materials Technology Center

Discussion

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Implication

Experimental study demonstrates enhanced UV protection, thermal stability, and antibacterial activity in biodegradable packaging films, indicating potential for sustainable multifunctional plastics.

Key Points

To develop a scalable, green fabrication method for spherical lignin nanoparticles and evaluate their performance as multifunctional bio-additives in biodegradable packaging films.
Softwood kraft lignin was fractionated with recyclable acetone and precipitated into spherical nanoparticles (S-LNPs) using deionized water anti-solvent under ultrasonication.
Composite films were prepared by blending 0.5 wt% S-LNPs into home-compostable polybutylene succinate (PBS) via conventional blown film melt-extrusion.
Synthesized S-LNPs had an average diameter of 120±18 nm (range 40–300 nm), reduced ash content (0.05% vs. 1.22% in raw lignin), and an increased phenolic to aliphatic hydroxyl ratio.
At 0.5 wt% loading, PBS/S-LNP films matched neat PBS in mechanical strength while increasing UV-B shielding by 69%, UV-A shielding by 64%, and onset oxidative temperature by 42%.
Composite films exhibited antibacterial activity (R) values of 2.5 against Escherichia coli and 1.5 against Staphylococcus aureus.

Cite This Study

Hararak et al. (2022) studied this question.

synapsesocial.com/papers/6a85cb53fc70cb81dc2043f5 https://doi.org/10.21203/rs.3.rs-1456679/v1

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March 23, 2022Open Access

Lignin nanoparticles for sustainable and biodegradable packaging films

View Full Paper

Ask AI

Bookmark

Authors

Discussion

Member takes

Implication

Experimental study demonstrates enhanced UV protection, thermal stability, and antibacterial activity in biodegradable packaging films, indicating potential for sustainable multifunctional plastics.

Key Points

To develop a scalable, green fabrication method for spherical lignin nanoparticles and evaluate their performance as multifunctional bio-additives in biodegradable packaging films.
Softwood kraft lignin was fractionated with recyclable acetone and precipitated into spherical nanoparticles (S-LNPs) using deionized water anti-solvent under ultrasonication.
Composite films were prepared by blending 0.5 wt% S-LNPs into home-compostable polybutylene succinate (PBS) via conventional blown film melt-extrusion.
Synthesized S-LNPs had an average diameter of 120±18 nm (range 40–300 nm), reduced ash content (0.05% vs. 1.22% in raw lignin), and an increased phenolic to aliphatic hydroxyl ratio.
At 0.5 wt% loading, PBS/S-LNP films matched neat PBS in mechanical strength while increasing UV-B shielding by 69%, UV-A shielding by 64%, and onset oxidative temperature by 42%.
Composite films exhibited antibacterial activity (R) values of 2.5 against Escherichia coli and 1.5 against Staphylococcus aureus.

Cite This Study

Hararak et al. (2022) studied this question.

synapsesocial.com/papers/6a85cb53fc70cb81dc2043f5 https://doi.org/10.21203/rs.3.rs-1456679/v1

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