摘要
聚氨酯泡沫塑料由于含可燃的碳氢链段、密度小、比表面积大,未经阻燃处理的聚氨酯是可燃物,遇火会燃烧并分解,产生大量有毒烟雾,给灭火带来困难。特别是聚氨酯软泡开孔率较高,可燃成分多,燃烧时由于较高的空气流通性而源源不断地供给氧气,易燃且不易自熄。
Containing combustible carbon-hydrogen chain segments, polyurethane foam plastics feature in small density and large specific surface area. Without flame retardancy, polyurethane materials as combustibles may burn and decompose along with lots of poisonous fogs when meeting fires, which cause troubles to put out fires. In particular, flexible polyurethane materials which own high open- ing ratio and abundant combustible components are flammable and hardly self-extinguished, because good ventilation helps oxygen supply.
出处
《环球聚氨酯》
2008年第5期22-25,共4页
Polyurethane Monthly
