Abstract:

A kind of waterborne 2K PU coating has been prepared. This coating has a visual gelatinization as mixed for a pot life during which it can keep stable. In this article, the effects of emulsion and curing agent on film properties are investigated. The results show that a certain mass ratio of emulsion and curing agent can enable the coating to have visual gelatinization and to keep stable during pot life, meanwhile, its film properties are similar with that of solvent-based 2K PU wood coatings.

Key words: waterborne wood coating, 2K PU coating, pot life, visual gelatinization

摘要：

开发了一种木器用双组分水性聚氨酯涂料,该体系在到达活化期的同时可产生液态漆可视胶化的现象,且漆膜性能在活化期内各时间段均能保持稳定。重点讨论了乳液、配套固化剂对体系性能的影响。实验发现只有特定的乳液和固化剂搭配才能保证达到活化期内出现液态漆可视胶化以及漆膜性能在活化期内保持稳定的目标,并且该产品漆膜性能与溶剂型双组分聚氨酯木器涂料的相当。该涂料产品适合零售市场对水性木器漆的需求。

关键词: 水性木器漆, 双组分涂料, 活化期, 可视胶化

CLC Number: 

• TQ635.3