用于室内建筑材料的聚乙烯(PE)基泡沫块的火灾风险及通过简单表面涂层灭火:脆弱性、传播性和阻燃性分析

IF 3 3区 农林科学 Q2 ECOLOGY Fire-Switzerland Pub Date : 2023-09-08 DOI:10.3390/fire6090350
Yongtae Jeon, Jungwoo Park, Jongyoung Park, Chan-Yong Kang
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引用次数: 0

摘要

建筑火灾可通过可燃材料和室内装饰材料的表面燃烧蔓延。近年来,泡沫砌块作为高层住宅内部材料的使用有所增加。然而,由于泡沫块主要由聚乙烯组成,它们不阻燃,很容易燃烧,火灾可能蔓延,导致大规模破坏。本文将泡沫砌块的火灾危险性和扩散特性与阻燃壁纸和普通壁纸进行了比较,以确定其火灾风险。通过可燃性、锥形量热法和火焰蔓延分析,确认了泡沫块的火灾风险。根据对泡沫砌块火灾风险的比较分析,平均总放热量为11.2MJ/m。这大约是阻燃壁纸的平均热释放速率的三倍,并且大约是普通壁纸的两倍。泡沫块由于火灾而迅速点燃,并产生大量燃烧气体和热量。为了防止这种火灾,在表面改性后简单地涂覆5wt%的蒙脱石(MMT)以抑制火灾的发生。必须开发各种阻燃材料、表面改性和消防安全系统,以防止火灾危险。
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Fire Risk of Polyethylene (PE)-Based Foam Blocks Used as Interior Building Materials and Fire Suppression through a Simple Surface Coating: Analysis of Vulnerability, Propagation, and Flame Retardancy
Building fires can spread through surface combustion of both combustible and interior finishing materials. Recently, the use of foam blocks as interior materials for high-rise residential buildings has increased. However, as foam blocks are primarily composed of polyethylene, they are not flame-retardant and can readily burn and the fire can spread, leading to large-scale damage. Herein, the fire hazard and diffusion characteristics of foam blocks were compared with those of flame-retardant and general wallpapers to confirm the risk of fire. The fire risk of the foam blocks was confirmed using flammability, cone calorimetry, and spread-of-flame analyses. Based on a comparative analysis of the fire risk of foam blocks, the average total heat release was 11.2 MJ/m. This is approximately three times higher than the average heat release rate of the flame-retardant wallpaper and approximately two times higher than that of the general wallpaper. The foam blocks ignited rapidly owing to fire and generated large amounts of combustion gas and heat. To prevent such a fire, 5 wt% montmorillonite (MMT) was simply coated after surface modification to suppress the occurrence of fire. Various flame-retardant materials, surface modifications, and fire safety systems must be developed to prevent fire hazards.
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来源期刊
Fire-Switzerland
Fire-Switzerland Multiple-
CiteScore
3.10
自引率
15.60%
发文量
182
审稿时长
11 weeks
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