Fundamental flame spread and toxicity evaluation of fire retarded polymers

M. Suzanne, S. Ukleja, M. Delichatsios, Jianping Zhang, B. Karlsson
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引用次数: 5

Abstract

A simple method is developed for characterizing the fire performance and toxicity of polymers using basically three but up to five parameters if necessary. The first parameter is related to fire spread and growth (corresponding to UL-94 and the FIGRA of SBI), the second parameter is the smoke yield (corresponding to the SMOGRA of SBI), the third parameter is the inefficiency of combustion (related to unburned hydrocarbon compounds and their toxicity as verified by tube furnace measurements), the fourth parameter is the mass of residue remaining and the fifth parameter is a heat release parameter for thermally thin conditions (the maximum mass loss rate in TGA multiplied by the effective heat of combustion deduced from the Cone Calorimeter tests). The developed methodology was used to compare brominated and halogen free fire retardants in formulations of PBT, PA66, PPE/HIPS and PC/ABS. It is confirmed that the studied environmentally friendly alternatives to brominated fire retardants offer comparable fire performance with lower toxicity.
阻燃聚合物的基本火焰蔓延和毒性评价
开发了一种简单的方法来表征聚合物的防火性能和毒性,基本使用三个参数,必要时最多使用五个参数。第一个参数与火势蔓延和生长有关(对应于UL-94和SBI的FIGRA),第二个参数是产烟量(对应于SBI的SMOGRA),第三个参数是燃烧效率低(与未燃烧的碳氢化合物及其毒性有关,经管式炉测量证实)。第四个参数是残余残留物的质量,第五个参数是热薄条件下的热释放参数(热重分析中的最大质量损失率乘以从锥量热计测试中推断出的有效燃烧热)。采用该方法对PBT、PA66、PPE/HIPS和PC/ABS配方中的溴化阻燃剂和无卤阻燃剂进行了比较。研究证实,所研究的环境友好型溴化阻燃剂替代品具有相当的防火性能和较低的毒性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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