Anti-re-precipitating agent as well as preparation method and application thereof

The invention discloses an anti-reprecipitation agent and a preparation method and application thereof, the anti-reprecipitation agent comprises a structure as shown in a formula 1 and a formula 2: # imgabs0 #. The anti-reprecipitation agent is started by mixing branched polyethyleneimine and diethylenetriamine, is polymerized with a small amount of PO under an autocatalytic condition and then is polymerized with a large amount of EO, and has the advantages of low product chromaticity, fast autocatalytic reaction and good anti-reprecipitation effect. The anti-reprecipitation agent is mainly used in the fields of spinning, daily chemicals and the like, and can also be used as a cosolvent and an antistatic agent to be added in the fields of metal processing and the like. 本发明公开了一种抗再沉淀剂及其制备方法和其应用，其包括式1和式2所示的结构：#imgabs0#本发明抗再沉淀剂以支化聚乙烯亚胺和二乙烯三胺混合起始，在自催化条件下与少量PO聚合再与大量EO聚合，产品色度低，自催化反应较快，抗再沉淀效果好。本发明的抗再沉淀剂主要用于纺织、日化等领域，同时也可以做为助溶剂和抗静电剂添加在金属加工等领域。