Polyether polyol catalyst, preparation method thereof and method for preparing polyether polyol by using polyether polyol catalyst

The invention relates to a preparation method of a polyether polyol catalyst and a method for preparing polyether polyol by using the polyether polyol catalyst. The structural general formula of the catalyst is # imgabs0 #, wherein R is alkyl with 1-10 carbon atoms or aryl with 6-10 carbon atoms, and X is hydroxyl or alkoxy with 1-4 carbon atoms. The catalyst is good in catalytic effect and high in stability, and cannot be decomposed to generate pungent smell in the polyether synthesis process, so that the polyether smell and VOC are relatively low, and the problem that the smell is relatively strong when the existing catalyst is used for synthesizing low-unsaturation-degree and high-activity polyether is solved. 本发明涉及一种聚醚多元醇催化剂的制备方法、以及使用其制备聚醚多元醇的方法，催化剂结构通式为#imgabs0#其中R为1～10个碳原子的烷基或6～10个碳原子的芳基，X为羟基或1～4个碳原子的烷氧基。该催化剂催化效果好，稳定性高，聚醚合成过程中不会分解产生刺激性气味，因此聚醚气味及VOC较低，解决了现有催化剂合成低不饱和度、高活性聚醚时气味较大的问题。