Dicofol flame-retardant polyether polyol as well as preparation method and application thereof

The invention belongs to the technical field of polyether polyol preparation, and particularly relates to dicofol flame-retardant polyether polyol as well as a preparation method and application thereof. The dicofol flame-retardant polyether polyol disclosed by the invention is obtained by taking dicofol and polyol as a mixed initiator and polymerizing with alkylene oxide under the action of a composite catalyst, the polyol is one or more of cane sugar, solid sorbitol, 1, 4-butanediol, triethanolamine, diethylene glycol, glycerol, hexanediol and propylene glycol. The dicofol flame-retardant polyether polyol disclosed by the invention is good in flame retardant property and activity and high in mechanical strength. The invention also provides a preparation method and application of the polyurethane foam stabilizer in rigid polyurethane foam. 本发明属于聚醚多元醇制备技术领域，具体涉及三氯杀螨醇阻燃聚醚多元醇及其制备方法和应用。本发明所述的三氯杀螨醇阻燃聚醚多元醇，采用三氯杀螨醇和多元醇作为混合起始剂，在复合催化剂作用下与环氧烷烃进行聚合得到；所述多元醇为蔗糖、固体山梨醇、1,4-丁二醇、三乙醇胺、二乙二醇、甘油、己二醇、丙二醇中的一种或多种。本发明三氯杀螨醇阻燃聚醚多元醇阻燃性