新型磷—卤协效阻燃剂的合成与应用

Synthesis and Application of Two Novel Phosphorusbromine Synergy Flame Retardants

以乙二醇、２，３-二溴丙醇或二溴新戊二醇、三氯氧磷等为原料合成了四（２，３-二溴丙基）乙二醇双磷酸酯和１，２-二（５，５’-二溴甲基１，３，２-三氧-２-磷杂己烷基）乙烷两种磷—卤协效阻燃剂，所合成的化合物均经元素分析和红外光谱证明其分子结构。将前者用于聚氨酯泡沫塑料中，添加量１２％时，氧指数达到２３以上，水平燃烧速率下降６０％。

Two novel brominated phosphate flame retardants tetra(2,3dibromopropyl)glycol diphosphate and 1,2bis(5,5'dibromomethyl1,3,2trioxyl2oxaheane)ethane were synthesized on basis of the materials of glycol,2,3dibromopropyl alcohol or dibromoneopentyl glycol,phosphorus oxychloride.The structures of both of compounds were characterized by elementary analysis and IR.PUFF was treated with former compound,when the addon was 20%,LOI reached 25,burn rate decreased by 64% compared with original PUFF.