The functional mechanism, type, properties of super absorbent polymers are discussed in this paper. The application and effection are summriaed in details. The future research are prospected.

• 阐述了保水剂的作用机理、类型、性质。重点对保水剂在各行业的应用及效用进行了探讨,展望了保水剂的开发动向。