聚氨酯涂料中固化剂对涂膜发白的影响

Effect of Curing Agents on the Whitening of PU Coating Film

聚氨酯涂料涂膜发白情况主要出现于聚氨酯透明底漆。针对聚氨酯透明底漆涂膜发白的现象,讨论了不同类型的固化剂(聚二异氰酸酯)及不同使用量的固化剂对聚氨酯透明底漆涂膜发白现象的影响,同时对其发白原因进行了分析。

Whitening of PU coating mainly appears in PU clear primer. The effects of varying curing agents（aliphatic diisocyanate） and different dosage of curing agents on the whitening of PU clear primer were investigated and the reasons for whitening were discussed.