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热塑性材料竖直贴壁火灾特性研究 被引量：4

Study of fire characteristics of vertical-adherent Thermoplastic materials
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摘要 对聚乙烯(PE)和聚甲基丙烯酸甲酯(PMMA)即有机玻璃两种热塑性材料的质量损失速率、火蔓延速率以及CO体积分数在不同厚度下的变化情况进行了试验研究,发现在竖直贴壁自上而下的燃烧情况下,材料的燃烧特性主要是受厚度、流动性以及材料自身热物性的影响。PMMA的质量损失速率和CO体积分数随厚度的增加而变大,并且厚度的影响随厚度的增加越来越小。 The combustion characteristics and the effect on fire development and spread of Thermoplastic building decoration materials in fire was studied.Changes of mass loss rate,fire spread rate,and CO concentration of two kinds of typical thermoplastic materials were analyzed.In vertical-adherent and top-down combustion cases,the thickness,liquidity and thermal properties are the main factors affecting the combustion characteristics.The mass loss rate and CO concentration changes in the same order.The mass loss rate and CO concentration of PMMA increase with the increasing of thickness and the impact of thickness decreases with the increase of thickness.
作者 杨立中 龚俊辉 邓志华 周宇鹏
机构地区 中国科学技术大学火灾科学国家重点实验室
出处 《热科学与技术》 CAS CSCD 2010年第2期183-188,共6页 Journal of Thermal Science and Technology
关键词 热塑性材料 熔融 失重速率 火蔓延 Thermoplastic materials melting mass loss rate fire spread
分类号 X928.7 [环境科学与工程—安全科学]
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共引文献20

同被引文献25

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引证文献4

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热科学与技术
2010年 第2期

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