以异佛尔酮二异氰酸酯(IPDI)和六亚甲基二异氰酸酯(HDI)为硬段,聚醚二元醇(N-220)及聚酯二元醇(PBA)为软段,二羟甲基丙酸(DMPA)为亲水性物质,乙二胺(EDA)为后扩链剂等,合成了固含量约为50%的环氧树脂(E-20)及甲基丙烯酸甲酯(MMA)复合改性的水性聚氨酯分散体(PUD).并探讨了-NCO/-OH物质的量比、软段类型和软段相对分子质量对高固含量水性聚氨酯性能的影响,同时对制得的PUD进行红外、透射电镜等测试分析,从而制备出性能较好、较稳定的高固含量水性聚氨酯分散体.
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