Preparation of phosphorus-doped chitosan derivative and its applications in polylactic acid: Crystallization, flame retardancy, anti-dripping and mechanical properties

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 265, P. 130648 - 130648

Published: March 8, 2024

Language: Английский

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Layered charring agent with super strong carbonization for IFR system: Achieving highly efficient flame retardancy of PLA by ultra-low addition IFR

Sustainable materials and technologies, Journal Year: 2024, Volume and Issue: 40, P. e00924 - e00924

Published: April 8, 2024

Language: Английский

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Molecularly engineered polyphosphazene-derived for advanced polylactide biocomposites with robust toughness, flame retardancy, and UV resistance

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 482, P. 148964 - 148964

Published: Jan. 26, 2024

Language: Английский

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Biopolymer‐Based Flame Retardants and Flame‐Retardant Materials

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 8, 2025

Abstract Polymeric materials featuring excellent flame retardancy are essential for applications requiring high levels of fire safety, while those based on biopolymers highly favored due to their eco‐friendly nature, sustainable characteristics, and abundant availability. This review first outlines the pyrolysis behaviors biopolymers, with particular emphasis naturally occurring ones derived from non‐food sources such as cellulose, chitin/chitosan, alginate, lignin. Then, strategies chemical modifications flame‐retardant purposes through covalent, ionic, coordination bonds presented compared. The is placed advanced methods introducing biopolymer‐based retardants into polymeric matrices fabricating materials. Finally, challenges sustaining current momentum in utilization further discussed.

Language: Английский

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A new strategy for the preparation of polylactic acid composites with flame retardancy, UV resistance, degradation, and recycling performance

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 472, P. 145000 - 145000

Published: July 24, 2023

Language: Английский

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Polydopamine-assisted MXene decoration on electrospun polylactide fibers toward oil/water separation and organic dye adsorption

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 328, P. 125040 - 125040

Published: Sept. 13, 2023

Language: Английский

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Constructing Novel Biobased Phosphorus-Containing Oligomeric Lactates toward Synchronously Enhancing the Toughness and Fire Safety of Poly(lactic acid)

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(17), P. 6748 - 6761

Published: April 15, 2024

Simultaneously improving the flame retardancy and toughness of polylactic acid (PLA) remains a huge challenge. In this work, we report simple method for synthesizing PLA blended with biobased phosphorus-containing oligomeric lactates. Four lactates (PEL, PBL, PHL, POL) were synthesized l-lactic acid, aliphatic dihydric alcohols (ethylene glycol, butane-1,4-diol, 1,6-hexanediol, or 1,8-octanediol), phenyl phosphorodichloridate via esterification acylation reactions. Accordingly, flame-retardant ultratough composites can be achieved by direct blending commercially available plasticizer acetyl tributyl citrate (ATBC). The results exhibited that was obviously enhanced on adding 10 phr ATBC, its elongation at break reached about 550–670%, indicating their ultratoughness. This is ascribed to fact after ATBC diluted, fully dispersed in matrix so as reduce intermolecular force enhance toughness. Simultaneously, fire resistance distinctly. phosphoro group lactate structure PLA, which conducive capture radicals gas phase formation residual char condensed phase. All UL-94 V-0 rating. Besides, limited oxygen index increased from 20.0 34.8–41.0% addition 20 Additionally, both heat release rate total smoke effectively reduced. Intriguingly, four could improve crystallization retain outstanding transparency. work offers new manufacturing green flame-retardant, ultratough, transparent composites.

Language: Английский

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Flame retardancy of biopolymers enhanced by bio-based flame retardants: A review

Journal of Fire Sciences, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 18, 2025

The demand for sustainable materials has led to the development of biopolymers as alternatives petroleum-based polymers. However, their high flammability limits use in applications requiring stringent fire safety. Bio-based additives such lignin and chitosan among others have charring abilities that enhance flame retardancy by forming protective barriers during combustion. Renewable phytic acid, tannic casein, hydrophobins also show potential improving polymer dehydration, which can help create a stable char layer. Phosphorylation nitrogen-containing compounds nanomaterials promise resistance. These advancements make more suitable high-risk safety while maintaining sustainability. While considerable progress been made enhancing biopolymers, challenges remain developing highly effective, non-toxic, fully biodegradable retardants do not compromise physical properties processability biopolymers.

Language: Английский

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Simple preparation, big effect: Chitosan-based flame retardant towards simultaneous enhancement of flame retardancy, antibacterial, crystallization and mechanical properties of PLA

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 303, P. 140668 - 140668

Published: Feb. 3, 2025

Language: Английский

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Synthesis of phenylphosphorylated microcrystal cellulose biobased flame retardants and its flame-retardant modification on PLA biomaterials

Polymer Degradation and Stability, Journal Year: 2024, Volume and Issue: 227, P. 110843 - 110843

Published: May 27, 2024

Language: Английский

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