【摘要】 本文就氨基甲酸酯合成中亲水基化合物的选择、原料质量、—ＮＣＯ／ＯＨ值和乳化时氨基甲酸酯的粘度、温度对水性聚氨酯树脂质量及稳定性的影响进行了探讨。表４，参考文献７更多还原

【Abstract】 Abstract In the preparation of polyurethane with TDI, polyester polyhydric alcohol and polyether polyhydric alcohol, the best hydrophilic compound is dihydroxymethyl propionic acid, the perfect proportion value of NCO/OH is about 1.2, the excellent viscosity of the emulsified polymer is 1.6 Pa·s and the optimum temp. is about 20℃. The aqueous polyurethane resin prepared under the above_mentioned condition is a translucent emulsion, the film is fast to water and no change in colour can be found when it is soaked in water更多还原