There appeared a maximum point for the viscosity of PUA emulsion when the weight ratio of BA to MMA changed.

• 水性聚氨酯(PU)作为新型的环境友好材料，具有极好的粘结性能，耐磨性、耐擦伤性和良好的低温性能，高光泽、保光性能，在水性油墨领域具有广阔的应用前景。