Dual self-antiaggregating hybrid nanoarchitectonics for synergistic effects on the fire safety of intumescent flame retardant epoxy resins

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology Pub Date : 2025-02-07 DOI:10.1016/j.apt.2025.104815

Jianjian Luo , Keqing Zhou , Yan Ding , Lian Yin , Yanan Hou

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引用次数: 0

Abstract

Prior to the practical application of epoxy resins (EP), critical issues regarding the fire safety of flammable and toxic smoke releases must be addressed. Here, novel nanoarchitectonics with dual self-antiaggregating structure were fabricated in which CeO₂ nanoparticles were grown in situ on molybdenum disulfide (CeO₂-MoS₂). CeO₂ alleviated the re-agglomeration of MoS₂, and then CeO₂-MoS₂ further mitigated the reunification effect of zeolite imidazolate framework-8 encapsulated ammonium polyphosphate (APP@ZIF-8) in the EP matrix. When CeO₂-MoS₂ was employed as a synergist to replace 0.5 wt% of APP@ZIF-8 flame retardant, the thermal stability of EP composites was significantly improved, as evidenced by a 41.8% reduction in the maximum mass loss rate compared with pure EP. In addition, the PHRR, PSPR, PCO, and PCO₂ values of EP/0.5C-M/9.5A@Z were decreased by 65.8%, 47.9%, 67.0%, and 67.4%, respectively, while its LOI value improved to 28.2%. Benefit from the barrier and catalytic effect of CeO₂-MoS₂ nanoarchitectonics, in conjunction with the subsequent formation of multiple metal oxides and phosphorus-containing substances that form an expanding char layer, preventing the heat-mass exchange and smoke diffusion. This research suggests a feasible solution to the problem of high fire hazards in EP.

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来源期刊

Advanced Powder Technology 工程技术-工程：化工

CiteScore

9.50

自引率

7.70%

发文量

424

审稿时长

55 days

期刊介绍： The aim of Advanced Powder Technology is to meet the demand for an international journal that integrates all aspects of science and technology research on powder and particulate materials. The journal fulfills this purpose by publishing original research papers, rapid communications, reviews, and translated articles by prominent researchers worldwide. The editorial work of Advanced Powder Technology, which was founded as the International Journal of the Society of Powder Technology, Japan, is now shared by distinguished board members, who operate in a unique framework designed to respond to the increasing global demand for articles on not only powder and particles, but also on various materials produced from them. Advanced Powder Technology covers various areas, but a discussion of powder and particles is required in articles. Topics include: Production of powder and particulate materials in gases and liquids(nanoparticles, fine ceramics, pharmaceuticals, novel functional materials, etc.); Aerosol and colloidal processing; Powder and particle characterization; Dynamics and phenomena; Calculation and simulation (CFD, DEM, Monte Carlo method, population balance, etc.); Measurement and control of powder processes; Particle modification; Comminution; Powder handling and operations (storage, transport, granulation, separation, fluidization, etc.)