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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Fire‐retardant and high‐strength polymeric materials enabled by supramolecular aggregates

Aggregate, Journal Year: 2024, Volume and Issue: 5(2)

Published: Jan. 4, 2024

Abstract High‐performance polymers have proliferated in modern society across a variety of industries because their low density, good chemical stability, and superior mechanical properties. However, while are widely applied, frequent fire disasters induced by intrinsic flammability caused massive impacts on human beings, the economy, environment. Supramolecular chemistry has recently been intensively researched to provide retardancy for via physical barrier char‐catalyzing effects supramolecular aggregates. In parallel, noncovalent interactions between polymer chains, such as hydrogen bonding, π–π interactions, metal–ligand coordination, synergistic can endow matrix with enhanced strength. This makes it possible integrate physical–chemical properties into one aggregate‐based high‐performance polymeric system demand. fulfilling these promises needs more research. Here, we an overview latest research advances fire‐retardant high‐strength materials based structures work reviews conceptual design, characterization, modification principles, performances, applications, mechanisms. Finally, development challenges perspectives future also discussed.

Language: Английский

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Novel bio-based nanosheets: Improving the fire safety, electromagnetic shielding and mechanical properties of polylactic acid

Composites Part A Applied Science and Manufacturing, Journal Year: 2024, Volume and Issue: 179, P. 108044 - 108044

Published: Jan. 26, 2024

Language: Английский

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Structure of Metal–Organic Frameworks Eco-Modulated by Acid–Base Balance toward Biobased Flame Retardant in Polyurea Composites

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(12), P. 15227 - 15241

Published: March 18, 2024

Biobased-functionalized metal–organic frameworks (Bio-FUN-MOFs) stand out from the crowd of candidates in flame-retardant field due to their multipathway mechanisms and green synthesis processes. However, exploring designing Bio-FUN-MOFs tend counteract problem compromising advantages MOFs themselves, which inevitably results a waste resources. Herein, strategy are ecologically regulated through acid–base balance is presented for controllable preparation by two birds with one stone, i.e., higher element loading retention more MOF structures. Specifically, buffer layer created on periphery ZIF-67 weak etching biobased alkali arginine resist excessive phytic acid when phosphorus source preserve integrity internal crystals as much possible. As proof concept, was almost completely etched absence arginine. The acid-functionalized yolk@shell structure (ZIF@Arg–Co–PA) obtained this strategy, flame retardant, reduces fire hazards polyurea composites. At only 5 wt % loading, ZIF@Arg–Co–PA imparted composites limiting oxygen index 23.2%, peaks heat release rate, total release, smoke production were reduced 43.8, 32.3, 34.3%, respectively, compared neat polyurea. Additionally, prepared have acceptable mechanical properties. This work will shed light advanced structural design polymer excellent safety, especially environmentally friendly efficient retardants.

Language: Английский

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Poorly-/well-dispersed Fe3O4: Abnormal influence on electromagnetic wave absorption behavior of high-mechanical performance polyurea

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 493, P. 152833 - 152833

Published: June 5, 2024

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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Porous liquids assisted in-situ generated Co-LDH@MOF heterostructure with abundant defects for flame retardant and mechanical enhancement in polyurea composites

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 495, P. 153850 - 153850

Published: July 9, 2024

Language: Английский

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Biomaterials in intumescent fire-retardant coatings: A review

Progress in Organic Coatings, Journal Year: 2024, Volume and Issue: 192, P. 108483 - 108483

Published: May 13, 2024

Language: Английский

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Multi-stage releasing water: The unique decomposition property makes attapulgite function as an unexpected clay mineral-based gas source in intumescent flame retardant

Composites Part A Applied Science and Manufacturing, Journal Year: 2024, Volume and Issue: 178, P. 108014 - 108014

Published: Jan. 6, 2024

Language: Английский

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Integration of Dual Fire Alarm Self-Powered System: Leveraging Intelligent Wearable Flame-Retardant Hydrophobic Cotton Fabric

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 154158 - 154158

Published: July 21, 2024

Language: Английский

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