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涂料工业  2010 

环保型双组分聚氨酯固化剂mdi/tmp的开发及应用

Keywords: mdi/tmp固化剂,环保,双组分,聚氨酯涂料

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Abstract:

?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4h,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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