探讨了利用MDI(二苯基甲烷二异氰酸酯)低毒、低饱和蒸汽压、优异的低温性能来制备固化剂的时代背景、方法及其漆膜性能和在木器漆中的应用.设计温度70℃,反应时间4 h,理论-NCO含量为12.7%,固体分75%,并对产物进行表征.发现MDI/TMP预聚物固化剂具有高活性,优异的漆膜柔韧性,特别适合低温固化.分析了MDI/TMP和TDI/TMP这2种聚氨酯固化剂物化性能及在木器漆中的异同点.
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