▎ 摘　　要

NOVELTY - Preparing high water and oxygen barrier aqueous polyurethane comprises (a) reacting hydrotalcite and anionic surfactant in water to obtain organic intercalation modified hydrotalcite dispersion, (b) mixing the organic intercalation modified hydrotalcite dispersion with graphite oxide and performing ultrasonic treatment to obtain the graphene-hydrotalcite self-assembly, and (c) mixing the graphene hydrotalcite self-assembly with aqueous polyurethane dispersion to obtain final product. USE - The method is useful for preparing high water and oxygen barrier aqueous polyurethane. ADVANTAGE - The polyurethane inhibits the intrusion of water and oxygen, improves the water and oxygen barrier, and has excellent film formation and adhesion. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) An INDEPENDENT CLAIM is also included for high water and oxygen barrier aqueous polyurethane obtained by above method; and (2) two-component polyurethane adhesive comprising component A and component B, the component A comprises high water and oxygen barrier aqueous polyurethane and component B includes curing agent.