将苯基磷酰二氯分别与一缩二乙二醇或二溴丁烯二醇反应,合成含磷多元醇和含磷含溴多元醇.研究了这2种阻燃多元醇对聚氨酯泡沫结构和性能的影响.研究表明,随着阻燃多元醇份数增加,聚氨酯泡沫极限氧指数线性增加,且含磷含溴多元醇对聚氨酯泡沫的阻燃效果优于含磷多元醇.添加50 phr阻燃多元醇时,聚氨酯泡沫仍能保持良好的强度,且在700℃时残炭量增加,泡沫燃烧后形成了致密的残炭层.含磷多元醇主要起到凝聚相阻燃作用,而含磷含溴多元醇具有气相阻燃和凝聚相阻燃作用.
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