摘要
利用自制氰化氢(HCN)获取装置,分别就阻燃剂种类、含量等因素对软质聚氨酯(PU)泡沫热解产生HCN的影响进行了实验研究。结果表明,不同的阻燃剂对软质PU泡沫热解产生HCN的量有显著影响,氯化镁、二氰二胺、磷酸二氢铵、磷酸二氢钾和四硼酸钠(Na2B4O7·10 H2O)能减少HCN的产生,而氯化铵、硫酸铵、磷酸铵使HCN产生量增加。经Na2B4O7·10 H2O阻燃的软质PU泡沫热解产生HCN的量随Na2B4O7·10 H2O量的增加而减少,当Na2B4O7.10 H2O的用量为23.08%时。HCN释放量为3.2915 mg/g,是不加阻燃剂时的38.33%。
The equipment of absorbing HCN was used to study the effect of the type of fire retardant and contents on the yield of HCN in the process of polyurethane foam pyrolysis. It was found that NH4Cl, （NH4）2SO4, and （NH4）3PO4＆#8226;3H2O increased the HCN yield, while MgCl2, C2H4N4, NH4H2PO4 , KH2PO4, and Na2B4O7＆#8226;10H2O reduced the HCN yield. Particularly, when the content of Na2B4O7＆#8226;10H2O was 23.08 %,the release amount of HCN was 3.2915 mg/g,which was 38.33% that of plain polyurethane foam.
出处
《中国塑料》
CAS
CSCD
北大核心
2010年第9期77-83,共7页
China Plastics
关键词
聚氨酯
泡沫
氰化氢
阻燃剂
热分解
polyurethane
foam
hydrogen cyanide
flame retardant
thermal decomposition
