flame retarding polyether

The high reactive flame retardant polyether polyol(HIROL) for polyurethane resin was synthesized by copolymerization of epoxy propane(EP), oxirane(EO), pentabromophenyl glycidyl ether(PBPGE) and glycerol, using BF 3·THF as catalyst.

结果表明 ,当环氧乙烷 /环氧丙烷 /五溴苯基缩水甘油醚摩尔配比为 2∶7∶1时 ,所合成的阻燃聚醚多元醇以质量分数2 3%添入国产 2 5 # PU泡沫材料原料中 ,制得的阻燃PU泡沫材料氧指数为 2 8 5 ;与质量分数为 6 %的甲基膦酸二甲酯复配使用 ,氧指数提高到 32。

The flame retardant polyether polyol(HIROL) containing phosphorus was synthesized with dimethyl phosphite and high reactive chloride polyether polyol(CHIRO) which had chloromethyl group in side chain.

研究了侧链含有氯甲基的高活性氯代聚醚多元醇(CHIROL)与亚膦酸二甲酯钠盐反应,合成高活性含磷阻燃聚醚多元醇(HIROL)的方法。

The new flame retardant polyether polyol was prepared using N,N bis(2 hydroxylethyl) 2,4,6 tribromoaniline as beganning material and 3 (2,4,6 tribromophenoxy)epoxypropane as flame retardant raw material.

着重考察了反应物料比、投料方式、反应时间等因素对阻燃聚醚多元醇物理性质及收率的影响。

The synthetic recipe and technique of JH-452R burning resistance polyether were introduced.

介绍了 Ｊ Ｈ—４５２ Ｒ 耐燃聚醚的合成配方及工艺路线，讨论了影响产品性能的主要因