水性聚氨酯的交联改性研究

Study on Crosslink Modification of Aqueous Polyurethane

水性聚氨酯具有环保性的同时还具有优异的黏附力、良好的透湿透气及综合力学性能。大多数水性聚氨酯涂膜耐水性、耐溶剂性等较差,限制了其应用范围。分别从内交联改性和外交联改性的角度出发,较全面的介绍了当前水性聚氨酯的交联改性方法。

Aqueous polyurethane is environment friendly, it has excellent bonding properties, superior wet and gas penetration and comprehensive mechanical properties. However, most of the aqueous polyurethane membrane is bad water and solvent resistance, which limits its application. The methods of modification of aqueous polyurethane are introduced from the aspects of internal and external crosslink modification respectively.