Facile synthesis of 3D flower-like nickel phyllosilicate on graphite phase carbon nitride: a strategy for reducing fire hazard of epoxy resin

IF 3 3区工程技术 Q2 CHEMISTRY, ANALYTICAL Journal of Thermal Analysis and Calorimetry Pub Date : 2024-09-25 DOI:10.1007/s10973-024-13547-0

Zongquan Zhao, Shibin Nie, Hong Zhang, Jinian Yang, Dongyue Zhao, Shuo Wu

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Abstract

The design of epoxy resin (EP) with high flame retardancy, smoke suppression, and rapid curing capability has attracted significant attention in industrial applications. To reduce the fire hazard and enhance the processability of EP-based materials, a novel hybrid (g-C₃N₄@NiPS) was synthesized by in-situ growth of flower-like nickel phyllosilicate on the surface of graphite phase carbon nitride. The effects of g-C₃N₄@NiPS on the thermal stability and combustion properties of EP composites were investigated. The results showed that 5 mass% g-C₃N₄@NiPS delayed the early-stage decomposition and increased the residual char of the EP composite from 11.3 to 20.8 mass%. The addition of 5 mass% g-C₃N₄@NiPS reduced the peak heat release rate and peak smoke production rate of the EP composite by 34.5% and 41.9%, respectively. Specifically, the maximum release rates of CO and CO₂ decreased by 49.2% and 32.3%, respectively, greatly reducing the fire hazard. The residual char of EP/g-C₃N₄@NiPS exhibited a high degree of graphitization and displayed an excellent barrier effect, reducing the supply of fuel and the release of toxic fumes during EP combustion. Additionally, the presence of g-C₃N₄@NiPS showed a beneficial impact on expediting the cure response. This study provides a feasible strategy for the wide application of EP.

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在石墨相氮化碳上轻松合成三维花状硅酸镍：降低环氧树脂火灾危险的一种策略

具有高阻燃性、抑烟性和快速固化能力的环氧树脂（EP）的设计在工业应用中备受关注。为了降低环氧树脂基材料的火灾危险性并提高其加工性能，研究人员通过在石墨相氮化碳表面原位生长花状硅酸镍，合成了一种新型杂化物（g-C3N4@NiPS）。研究了 g-C3N4@NiPS 对 EP 复合材料热稳定性和燃烧性能的影响。结果表明，5 质量%的 g-C3N4@NiPS 可延缓 EP 复合材料的早期分解，并将其残炭率从 11.3 质量%提高到 20.8 质量%。添加 5 质量%的 g-C3N4@NiPS 后，EP 复合材料的峰值热释放率和峰值烟产生率分别降低了 34.5%和 41.9%。具体而言，CO 和 CO2 的最大释放率分别降低了 49.2% 和 32.3%，大大降低了火灾危险性。EP/g-C3N4@NiPS 的残炭表现出高度石墨化，并具有良好的阻隔效果，从而减少了 EP 燃烧过程中燃料的供应和有毒烟雾的释放。此外，g-C3N4@NiPS 的存在还对加快固化反应产生了有利影响。这项研究为 EP 的广泛应用提供了一种可行的策略。

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来源期刊

Journal of Thermal Analysis and Calorimetry 化学-分析化学

CiteScore

8.50

自引率

9.10%

发文量

577

审稿时长

3.8 months

期刊介绍： Journal of Thermal Analysis and Calorimetry is a fully peer reviewed journal publishing high quality papers covering all aspects of thermal analysis, calorimetry, and experimental thermodynamics. The journal publishes regular and special issues in twelve issues every year. The following types of papers are published: Original Research Papers, Short Communications, Reviews, Modern Instruments, Events and Book reviews. The subjects covered are: thermogravimetry, derivative thermogravimetry, differential thermal analysis, thermodilatometry, differential scanning calorimetry of all types, non-scanning calorimetry of all types, thermometry, evolved gas analysis, thermomechanical analysis, emanation thermal analysis, thermal conductivity, multiple techniques, and miscellaneous thermal methods (including the combination of the thermal method with various instrumental techniques), theory and instrumentation for thermal analysis and calorimetry.