Polyvinylketone (PVAc) is a colorless, transparent polymer compound commonly used in the preparation of adhesives and adhesives. It has good mechanical properties, chemical stability, and adhesive properties, and can bond with various materials such as cellulose, wood, and metal. However, the hydrothermal performance of povidone is relatively poor, and it is prone to decomposition when exposed to water, so it is not suitable for bonding work in humid environments.