Otherwise,our researched epoxy,castor oil,organosiloxane modified polyurethane respectively,and the modified polyurethane films showed better water resistance.

• 研究了环氧树脂、蓖麻油、有机硅对水性聚氨酯的改性,实验表明,改性后的水性聚氨酯涂膜的耐水性能得到较大的提高。