首页> 外文会议>Fire and Materials 2013 >EFFECTS OF UNDER-VENTILATED CONDITIONS ON THE REACTION-TO-FIRE OF A POLYISOCYANURATE FOAM
【24h】

EFFECTS OF UNDER-VENTILATED CONDITIONS ON THE REACTION-TO-FIRE OF A POLYISOCYANURATE FOAM

机译:通风条件对多异氰酸酯泡沫起火反应的影响

获取原文
获取原文并翻译 | 示例

摘要

The use of polyisocyanurate foams as core materials of sandwich composite products offers manyrnadvantages for structural applications in transportations or in the building trade. However, most of thernmaterials currently used in these sectors/industries are reactive. To improve their fire performance, flameretardantsrnare frequently used in the polymer foams. Nevertheless, this might also modify the composition of firerneffluents, e.g. modification of the toxic potency and the nature of gases evolved. The composition of fire effluentsrnof gases depends on the fire condition (oxygen concentration, temperature) in the gas phase but mainly on localrnconditions (oxygen concentration and thermal balance) in the condensed phase. The general scope of the presentrnwork is to study the effects of oxygen decay conditions on the reaction to fire and gases evolved from flameretarded-rnpolyisocyanurate foam. The present paper proposes an innovative approach to study the gasificationrnand combustion of this foam, based on the use of a controlled-atmosphere cone calorimeter coupled to arnFourier-transform infrared spectroscopy gas analyser (FTIR). The dependence of the results on oxygenrnconcentration will be presented and discussed.
机译:将聚异氰脲酸酯泡沫用作三明治复合材料产品的核心材料为运输或建筑行业中的结构应用提供了许多优势。但是,当前在这些部门/行业中使用的大多数材料都是反应性的。为了提高其防火性能,在聚合物泡沫中经常使用阻燃剂。然而,这也可能会改变工业废水的成分,例如改变了毒性和气体的性质。废气中的气体成分取决于气相中的着火条件(氧气浓度,温度),但主要取决于冷凝相中的局部条件(氧气浓度和热平衡)。本发明的总体范围是研究氧衰减条件对由阻燃的聚异氰脲酸酯泡沫产生的与火和气体的反应的影响。本文提出了一种创新的方法,基于可控大气锥量热仪与arnFourier变换红外光谱气体分析仪(FTIR)的结合,研究这种泡沫的气化和燃烧。将介绍和讨论结果对氧浓度的依赖性。

著录项

  • 来源
    《Fire and Materials 2013》|2013年|103-114|共12页
  • 会议地点 San Francisco CA(US);London(GB)
  • 作者单位

    Laboratoire national de métrologie et d’essais (LNE), 1 Rue Gaston Boissier - 75724 Paris, France Tel: +33 (0) 130693246 Fax: + 33 (0) 130691234 E-mail: damien.marquis@lne.fr;

    rnLaboratoire national de métrologie et d’essais (LNE), 1 Rue Gaston Boissier - 75724 Paris, France;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号