【摘要】 水性聚氨酯作为一种以水为分散介质的环保型材料，具有低会发有机化合物含量、安全不易燃、结构设计性强以及良好的低温性能、耐摩擦性能等优点，在各行各业有着广泛的应用。本文从水性聚氨酯的制备及合成机理、组成及分类、改性技术方面对水性聚氨酯研究就行了系统的综述，并对水性聚氨酯的应用前景和发展方向进行了展望。更多还原

【Abstract】 As an environmental protection material with water as the dispersion medium, waterborne polyurethane has many advantages such as low content of volatile organic compounds, safety and non flammability, strong structural design, good low temperature performance and friction resistance, and has been widely used in all walks of life. In this paper, the preparation, synthesis mechanism, composition, classification and modification technology of waterborne polyurethane are systematically reviewed, and the application prospect and development direction of waterborne polyurethane are prospected.更多还原