N, P co‐doped carbon quantum dot and ammonium polyphosphate as the synergistic flame retardant for epoxy resin

Journal of Vinyl and Additive Technology, Год журнала: 2024, Номер 30(4), С. 1052 - 1065

Опубликована: Март 28, 2024

Abstract An N, P co‐doped carbon quantum dot (NP‐CQD) was prepared using citric acid as the source and hexachlorotripolyphosphonitrile nitrogen phosphorus source. The structure morphology of NP‐CQD were characterized. Subsequently, blended with ammonium polyphosphate (APP) to come into being a synergistic phosphorus‐nitrogen flame retardant system (SPFRS). SPFRS applied in epoxy resin (EP) enhance retardancy EP. Thermal stability, retardancy, combustion behavior, char residue EP samples determined by multiple testing methods such thermogravimetric analysis, vertical burning (UL‐94) limiting oxygen index (LOI) tests, microscale calorimetry test, scanning electron microscopy. When weight ratio APP kept at 1:9 8% added EP, obtained flame‐retardant (EP/CQD‐APP 2:18 ) passed UL‐94 V‐0 level LOI value EP/CQD‐APP reached 33.2%. MCC test showed that heat release capacity (HRC) reduced 48.7% compared pure Morphology observation on after indicated addition promoted formation dense layer improve Highlight retardant. resin. proper 1:9.

Язык: Английский

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Phosphorus‐Based Polymeric Flame Retardants – Recent Advances and Perspectives

ChemistrySelect, Год журнала: 2024, Номер 9(26)

Опубликована: Июль 5, 2024

Abstract Among the various fire‐retardants (FRs) known, phosphorus is vital to development of effective FRs due its flexibility. Additionally, additives and combinations with multicomponent moieties ( e. g . P−Si, P−P, P−B, etc.) can serve purpose in different phases improve flame retardance properties. With an increased cognizance recyclable, eco‐friendly, bio‐based materials, phosphine oxide‐based materials/coatings fulfill criteria for flawless future FRs. In this regard, present review highlights most promising organophosphorus‐based compositions as non‐intrusive The classification, synthetic methods, related mechanisms, high‐end FR applications recently developed molecules materials are demonstrated. organophosphorus compounds, phosphorus‐based polyurethane display remarkable properties non‐toxic behavior. Notably, epoxy resins enhanced significantly presence more P=O bonds amino groups. limitations advantages compared traditional Also, challenges persisting improving current flame‐retardant need be addressed. However, success these treatment methods strongly depends on ability impart desired functionality, durability, scalability without compromising environmental problems.

Язык: Английский

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Novel non-radical elimination mechanism of phosphorus flame retardant parent compound in Triton X-100 enhanced solar activated peroxydisulfate process: Key role of energy transfer from singlet oxygen to Triton X-100

Separation and Purification Technology, Год журнала: 2024, Номер 335, С. 126148 - 126148

Опубликована: Янв. 4, 2024

Язык: Английский

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A biphosphophenanthrene structure intumescent flame retardant with superior smoke suppression performance for epoxy resin

Polymer Degradation and Stability, Год журнала: 2024, Номер 221, С. 110672 - 110672

Опубликована: Янв. 24, 2024

Язык: Английский

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Chitosan-based biopolyelectrolyte complexes intercalated montmorillonite: A strategy for green flame retardant and mechanical reinforcement of polypropylene composites

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 277, С. 134316 - 134316

Опубликована: Июль 31, 2024

Язык: Английский

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Exploring the Physicochemical Properties and Electrochemical Behavior of Phosphonium-Based Ionic Liquids as Additives in Carbonate Electrolytes for Lithium-Ion Batteries

The Journal of Physical Chemistry C, Год журнала: 2025, Номер unknown

Опубликована: Янв. 21, 2025

Lithium-ion batteries (LIBs) are widely utilized for energy storage in various technologies. Conventional organic electrolytes used LIBs face challenges, such as safety risks, limited cycling performance, and narrow electrochemical windows. In this study, several ionic liquid investigated. These composed of a mixture EC/EMC/DEC (1:1:1 wt) the solvent, combined with phosphonium-based liquids (ILs) possessing different alkyl chains on phosphonium cation, namely, trimethyl(isobutyl) bis(fluorosulfonyl)imide (P111i4FSI), tri-n-butyl(methyl) (P1444FSI), tri-n-butyl(decyl) (P44410FSI), serving additives. Subsequently, physicochemical properties behavior all The results indicate that compositions 90% + P111i4FSI 10% 50% (wt %) have higher ion conductivity thermal stability at 25 50 °C, respectively, compared to electrolyte. Although hybrid can support Li electrochemistry, making them promising candidates anodes, addition into electrolyte leads an increased oxidation limit from 1.88 1.94 2.03 V (vs Fc/Fc+), respectively.

Язык: Английский

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Exploring the Frontiers and Hurdles of Phosphorus-Based Intumescent Flame-Retardant Polyurethane: A Comprehensive Journey

Polymer-Plastics Technology and Materials, Год журнала: 2025, Номер unknown, С. 1 - 44

Опубликована: Янв. 26, 2025

Язык: Английский

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Simultaneous dyeing, flame-retardant, and antibacterial treatment of fabrics using adenosine triphosphate as a multifunctional agent

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159912 - 159912

Опубликована: Янв. 1, 2025

Язык: Английский

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Review: Microcapsules for enhancing the safety of LIBs

Journal of Thermal Analysis and Calorimetry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 3, 2025

Язык: Английский

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Synthesis of a phenylmaleimide bridged phosphaphenanthrene derivative for enhancing the flame retardancy of poly(lactic acid)

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 141135 - 141135

Опубликована: Фев. 1, 2025

Язык: Английский

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