摘要
为获得永久性阻燃性能,采用氟钛酸钾作为阻燃剂对羽绒纤维进行改性,通过红外分析,极限氧指数,残炭率,热分析和扫描电子显微镜等分析方法对其阻燃性能和热降解行为进行分析研究。结果表明:与未经阻燃处理的羽绒纤维比较,阻燃羽绒纤维的极限氧指数明显增加,热降解温度有所降低,热降解稳定性降低,热降解范围变窄,阻燃性能明显提高。改进后测得的极限氧指数为36.7%～41.8%,远远高于未处理的羽绒纤维的23%。
It was reported that potassium fluotilanate（K2TiF6） as a kind of simple flame retardant, was used to modify thedown fiber to get permanent flame retardant performance. The fire resistance and thermal degradation of down treated with flame retardant were studied by IR, char yield, limiting oxygen index （LOI）, thermal analysis and scanning electron microscopy （SEM）. It was found that compared to pure down fiber, in the treated down, there were apparently high limiting oxygen index, high＇char yield, low thermal degradation onset temperature and thermal stability, besides narrow thermal temperature range. In one word, fire resistance improved remarkably,when 36.5～41. 8% of limiting oxygen index was obtained, compared to. 23% of that of pure down.
出处
《消防科学与技术》
CAS
北大核心
2013年第1期71-74,共4页
Fire Science and Technology
关键词
羽绒纤维
接枝改性
氟钛酸钾
阻燃剂
down fiber
graft modification
potassium fluotitanate
flame retardant
