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就阴离子自乳化型水性聚氨酯的合成和ＮＣＯ％对成膜性能的影响进行探讨，结果表明：随ＮＣＯ％增加，膜硬度、拉伸强度和玻璃化温度增加，拉伸率、吸水率下降。
The results show that the film hardness, tensile strength and glass transition temperature increase with the increase of NCO%, while the elongation and water absorption rate decrease.