【摘要】 以异佛尔酮二异氰酸酯(IPDI)、聚醚多元醇、二羟甲基丙酸(DMPA)、乙二胺(EDA)为主要原料,采用预聚体法合成了系列水性聚氨酯乳液,讨论了水性聚氨酯上软段类型(N-210、N-220、PHA)、NCO/OH量比值、交联体系、乙二胺用量对乳液及其胶膜耐水性、力学性能、涂膜手感的影响.胶膜的ATR红外光谱表现为水性聚氨酯典型的红外特征.更多还原

【Abstract】 A series of waterborne polyurethane emulsions were synthesized by prepolymer method with isophoronediisocyanate (IPDI),polyetherpolyol,dimethylolacrylic acid(DMPA) and ethylenediamine(EDA) as raw materials.The influence of soft segment type of waterborne polyurethanes(N-210,N-220 and PHA),NCO/OH mol ratio,crosslinking system and EDA amount on the emulsions and the water resistance,physical properties and coating hand-feel of the coating membrane was investigated.The ATR IR spectrum of the membrane was demonstrated to be that typical to waterborne polyurethanes.更多还原