摘要
以芳香醇、脂肪醇及溴代醇为主要物料制备了阻燃聚醚,再与固体阻燃剂和液态阻燃剂复配使用,制得阻燃型聚氨酯泡沫塑料。研究了原料种类、发泡剂、异氰酸酯指数、阻燃剂种类等因素对泡沫阻燃性能的影响。结果表明,该阻燃聚醚与复合阻燃剂复配使用,制得的阻燃型聚氨酯泡沫塑料,其氧指数接近29%,压缩强度为270 kPa,达到了国家标准GB/T8624-1997中B_2级氧指数的要求。
A flame-retardant rigid polyurethane foam was prepared from a flame-retardant polyether polyol, which was made of aromatic alcohol, aliphatic alcohol and bromal, compounded with solid and liquid flame retarders. Effects of the type of raw materials and retarders, blowing agent, and isocyanate fraction on flame-retardant performance of the rigid PU foam were investigated. The rigid PU foam possessed a compressive strength of 270 kPa and an oxygen index of 29 %, which satisfied the Chinese national standard of flame-retardant B2 grade.
出处
《中国塑料》
CAS
CSCD
北大核心
2007年第12期50-54,共5页
China Plastics
关键词
阻燃
聚氨酯硬质泡沫塑料
氧指数
协同阻燃剂
发泡剂
flame-retardant
rigid polyurethane foam
oxygen index
synergistic flame-retardant
blowing agent
