Bubbles easily occurs in waterborne polyurethane wood varnish, which will influence the decoration effects. Suitable defoamers screened up and their optimum amounts are determined by tests.

• 水性聚氨酯木器漆极易产生气泡,影响其装饰性。通过系列试验,筛选出适宜的消泡剂,并确定其最佳用量。