| abstract |
An aqueous polyurethane-polyvinyl acetate resin, a preparation method therefor and use thereof. Said resin is prepared by using raw materials including the following components: A) a diisocyanate end-capped prepolymer; B) a chain extender, including amine chain extenders and sulfonic acid hydrophilic chain extenders containing active hydrogen, the amine chain extenders including diamine chain extenders containing active hydrogen; C) an end-capping agent, the end-capping agent being a monoamine end-capping agent; D) vinyl acetate; E) a protective colloid; and F) a radical polymerization initiator. The resulting resin has excellent comprehensive properties (for example, the resin has high solid content and good construction performance, and the adhesive prepared therefrom has excellent heat resistance and high bonding strength), and the preparation process is easy to implement. |