High-adhesion two-component polyurethane adhesive capable of being quickly degummed after being boiled in water as well as preparation method and application of high-adhesion two-component polyurethane adhesive

The invention discloses a high-adhesion two-component polyurethane adhesive capable of rapidly degumming after boiling in water, which comprises a component A and a component B. The mass ratio of the component A to the component B is (2-2.5): 1. The component A is prepared from the following raw materials: polyether polyol, polyester polyol, a cross-linking agent, an accelerant, a diluent, a water removal agent, filler, an anti-settling agent, a foaming agent and pigment filler; the component A comprises the following raw materials, the component B comprises the following raw materials: diphenylmethane diisocyanate and polyether polyol, the mass ratio of the diphenylmethane diisocyanate to the polyether polyol is (6-7): (3-4), and the polyurethane adhesive is prepared by the steps of respectively preparing the component A and the component B, then mixing and the like. Compared with an epoxy system adhesive, the polyurethane adhesive disclosed by the invention has the advantages that degumming is easier at 90-