摘要
利用小白鼠试验来研究新型阻燃低密度聚乙烯(LDPE)复合材料的烟气毒性,探寻材料烟气毒性最大不至死浓度,根据相关标准判断材料毒性所属级别,并比较研究不同燃烧状况下阻燃LDPE复合材料产烟毒性.从烟气毒性实验可知,有焰燃烧比无焰燃烧具有较小的烟气毒性.同时利用火灾性能指数和火灾发展指数对阻燃LDPE复合材料的火灾安全性进行评价.研究结果有助于优化设计环境友好、综合性能优良的阻燃低密度聚乙烯复合材料.
The smoke toxicity of the novel flame retardant low-density polyethylene （LDPE） composites with good flame retardant properties and excellent water resistance was studied by mice experiments, and the upper limit of the no death smoke concentration of the smoke was assessed. Furthermore, different heating temperatures were selected to research the smoke toxicity for the flame and flameless combustion. The results show that the smoke toxicity of the flame retardant LDPE composites with flame combustion is much smaller than that with the flameless combustion. Meanwhile, fire risk assessment of flame retardant LDPE composites is achieved by fire performance index and fire development index. The work provides some experimental data for preparing environment-friendly flame retardant LDPE composites with excellent properties.
基金
National Natural Science Foundation of China(51303004,U1332134)
Science Fund of Anhui Education Department(KJ2012A074)
Natural Science Foundation of Anhui Province of China(1308085QE91)
关键词
低密度聚乙烯
阻燃
烟气毒性
小白鼠实验
low-density polyethylene （LDPE）
flame retardancy
smoke toxicity
mice test
