摘要
以乙二胺和苯基二氯磷酸酯为原料,按其摩尔比1.2∶1.0合成了无卤阻燃单体聚乙二胺苯基磷酸酯(PEP);将PEP与红麻纤维(KF)发生酯化反应,制备了含有P,N元素的酯化阻燃KF;采用物理浸渍法制得浸渍阻燃KF;通过红外光谱、极限氧指数、热失重等手段,对比分析了2种KF的结构和性能。结果表明:酯化阻燃KF的阻燃等级为V-0级,极限氧指数可达56.5%,比浸渍阻燃KF的阻燃性能好,采用化学处理方法是改善KF热稳定性能最有效的方法。
A kind of halogen-free flame retardant monomer,poly （ethylenediaminephenylphosphonate） （PEP）,was synthesized from ethylenediamine and phenyldichloropentate at the mole ratio of 1.2 ∶ 1.0.And a flame retardant kenaf fiber （KF） containing P and N elements was prepared from PEP and KF by esterfication.And another kind of flame retardant KF was also produced by physical impregnation.The structure and properties of KF were compared and analyzed by infrared spectrometry,limiting oxygen index and thermogravimetry.The results showed that the esterified KF possessed the flame retardant grade of V-0 and the limiting oxygen index up to 56.5％ and was better than impregnated KF in flame retardance,which indicated that the chemical treatment was the most efficient way to improve the thermal stability of KF.
出处
《合成纤维工业》
CAS
北大核心
2014年第2期31-33,38,共4页
China Synthetic Fiber Industry
关键词
红麻纤维
无卤阻燃
酯化反应
物理浸渍
化学处理
热稳定性能
kenaf fiber
halogen-free flame retardant
esterification
physical impregnation
chemical treatment
thermal stability
