阻燃聚合物聚醚多元醇的合成及其阻燃性能的研究

摘要

Several kinds of nitrogenous compounds were dispersed or grafted to the basic polyether polyol, the high activity polyether polyol as the basic polyether polyol. A new grafted flame retardant polymer polyether polyol with polymer microparticles dispersion was produced. The synthesis conditions, the best ratio of raw materials and the flame retardancy of the PU foams were primary studied. The results showed that the flame retardant polymer polyether polyol produced in this method had many advantages, such as homogeneous particles distribution, low viscosity and well material fluidity, etc. The polyurethane foams prepared in this method had high oxygen index, low smoke density, good foam uniformity, high mechanical strength and many other exellent features.%采用高活性聚醚多元醇作为基础聚醚,将几种含氮化合物分散或接枝到高活性聚醚多元醇结构中,生成含有聚合物微粒分散体的接枝型阻燃聚合物聚醚多元醇.重点对阻燃聚合物聚醚多元醇合成的条件、原料最佳配比以及在聚氨酯泡沫中的阻燃性能进行了研究.结果表明,此种方法合成的阻燃聚合物聚醚多元醇具有颗粒分布均匀、粘度低、物料流动性好等优点,用其发泡制备的聚氨酯泡沫塑料具有氧指数高、发烟量低、泡沫均匀性好和机械强度高等特点.