Polyurethane foam stabilizer with excellent foam performance as well as preparation method and application of polyurethane foam stabilizer

The invention relates to the technical field of polyurethane foam, in particular to a polyurethane foam stabilizer with excellent foam performance and a preparation method and application thereof.The polyurethane foam stabilizer is obtained by mixing a component A and a component B. The chemical structure of the component A is as follows: x = 60-100, y = 3-10; the general structural formula of R1 is (CH2) p (OC2H4) g (OC3H6) hOR2, p is equal to 2-4, g is equal to 10-40, and h is equal to 0-40; r2 is H,-CH3 or-C (O) CH3; the chemical structure of the component B is shown in the specification, Ra is an organic silicon chain segment, and Rb is a polyether chain segment. 本发明涉及聚氨酯泡沫技术领域，尤其是一种具有优良泡孔性能的聚氨酯泡沫稳定剂及制备方法和应用，由组分A和组分B混合而得，所述组分A的化学结构如下：其中x＝60～100，y＝3～10；R1结构通式为(CH2)p(OC2H4)g(OC3H6)hOR2，其中p＝2～4，g＝10～40，h＝0～40；R2为H、-CH3或-C(O)CH3；所述组分B的化学结构为其中，Ra为有机硅链段，Rb为聚醚链段。