Preparation and flame retardant property of nano-aluminum hydroxide foam for preventing spontaneous coal combustion

Zhang, Leilin; Bian, Yunpeng; Kuai, Duolei

doi:10.1016/j.fuel.2021.121494

Cited by 35 publications

(9 citation statements)

References 44 publications

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“…Nano aluminum hydroxide stands out for its high efficiency as a fire retardant and consolidant, which decomposes when heated at 320 • C, losing its crystal water [450]. There is an interest in improving its efficiency by preparing composites, including aluminum hydroxide nanoparticles.…”

Section: Nano Aluminum Hydroxidementioning

confidence: 99%

“…There is an interest in improving its efficiency by preparing composites, including aluminum hydroxide nanoparticles. For instance, as assessed in wood pieces, the mix of foam composites and nano aluminum hydroxide-foaming agents results in a good fire retardant for preventing spontaneous coal combustion, obtaining, at the same time, smoke suppression [450].…”

Section: Nano Aluminum Hydroxidementioning

confidence: 99%

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Application of Inorganic Nanomaterials in Cultural Heritage Conservation, Risk of Toxicity, and Preventive Measures

2023

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Nanotechnology has allowed for significant progress in architectural, artistic, archaeological, or museum heritage conservation for repairing and preventing damages produced by deterioration agents (weathering, contaminants, or biological actions). This review analyzes the current treatments using nanomaterials, including consolidants, biocides, hydrophobic protectives, mechanical resistance improvers, flame-retardants, and multifunctional nanocomposites. Unfortunately, nanomaterials can affect human and animal health, altering the environment. Right now, it is a priority to stop to analyze its advantages and disadvantages. Therefore, the aims are to raise awareness about the nanotoxicity risks during handling and the subsequent environmental exposure to all those directly or indirectly involved in conservation processes. It reports the human–body interaction mechanisms and provides guidelines for preventing or controlling its toxicity, mentioning the current toxicity research of main compounds and emphasizing the need to provide more information about morphological, structural, and specific features that ultimately contribute to understanding their toxicity. It provides information about the current documents of international organizations (European Commission, NIOSH, OECD, Countries Normative) about worker protection, isolation, laboratory ventilation control, and debris management. Furthermore, it reports the qualitative risk assessment methods, management strategies, dose control, and focus/receptor relationship, besides the latest trends of using nanomaterials in masks and gas emissions control devices, discussing their risk of toxicity.

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Section: Nano Aluminum Hydroxidementioning

confidence: 99%

Section: Nano Aluminum Hydroxidementioning

confidence: 99%

Application of Inorganic Nanomaterials in Cultural Heritage Conservation, Risk of Toxicity, and Preventive Measures

2023

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“…Faced with the serious safety hazard of coal mine fire, researchers at home and abroad have made unremitting exploration and successfully developed diversified fire prevention and extinguishing products, including slurry, foam, inert gas, colloid, and chemical retardant [12][13][14][15]. These materials are essential in preventing CSC and are integral to ensuring the safety of coal mines.…”

Section: Introductionmentioning

confidence: 99%

Exploration and Frontier of Coal Spontaneous Combustion Fire Prevention Materials

Han,

Niu,

Zhu

et al. 2024

Processes

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Mine fires have always been one of the disasters that restrict coal mining in China and endanger the life safety of underground workers. The research and development of new fire prevention materials are undoubtedly important to ensure the safe and efficient production of modern mines. At present, the main inhibiting materials used are grout material, inert gas, retarding agent, foam, gel, and so on. In order to explore the current situation of coal spontaneous combustion (CSC) fire prevention, the existing fire prevention materials were reviewed and prospected from three aspects: physical, chemical, and physicochemical inhibition. The results show that, at present, most of the methods of physicochemical inhibition are used to inhibit CSC. Antioxidants have become popular chemical inhibitors in recent years. In terms of physical inhibition, emerging biomass-based green materials, including foams, gels, and gel foams, are used to inhibit CSC. In addition, CSC fire-fighting materials also have shortcomings, including incomplete research on the mechanism of material action, poor stability of inhibitory properties, low efficiency, and economic and environmental protection to be improved. The future research direction of fire-fighting materials will be based on theoretical experiments and numerical simulation to study the mechanism and characteristics of CSC and develop new directional suppression materials with physicochemical synergies. These findings have extremely important implications for improving materials designed to prevent CSC.

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“…Such high loading deteriorates the mechanical properties, processability, and long-term stability of the composites. Numerous attempts have been made to maximize flame retardancy without deteriorating mechanical properties, including the use of smaller ATH particles having large surface areas and combination with other flame retardants [23,24]. Surface modification is also a common approach to improving mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Improvement of Flame Retardancy and Mechanical Properties of Epoxy/Benzoxazine/Aluminum Trihydrate Adhesive Composites

Sung¹,

Kim²

2023

Preprint

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Epoxy was blended with benzoxazine resin and aluminum trihydrate (ATH) additive to render flame retardancy while maintaining mechanical properties. The ATH was modified using three different silane coupling agents and then added to 60/40 epoxy/benzoxazine mixtures. The effect of blend compositions and surface modification on flame retardant and mechanical properties of the composites was investigated by UL94, tensile, and shear tests. Resin mixtures containing more than 40 wt% benzoxazine revealed a UL94 V-1 rating with enhanced tensile and shear strength. Upon addition of 20 wt% ATH to 60/40 epoxy/benzoxazine, a V-0 rating was achieved. The lowered tensile and adhesive properties of the composites in the presence of ATH were improved by modifying the ATH surface using silane coupling agents.

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Preparation and flame retardant property of nano-aluminum hydroxide foam for preventing spontaneous coal combustion

Cited by 35 publications

References 44 publications

Application of Inorganic Nanomaterials in Cultural Heritage Conservation, Risk of Toxicity, and Preventive Measures

Application of Inorganic Nanomaterials in Cultural Heritage Conservation, Risk of Toxicity, and Preventive Measures

Exploration and Frontier of Coal Spontaneous Combustion Fire Prevention Materials

Synergistic Improvement of Flame Retardancy and Mechanical Properties of Epoxy/Benzoxazine/Aluminum Trihydrate Adhesive Composites

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