Coalescence and Film Formation Properties of Aqueous UV-Curable PUDs and Oligomers Prior to UV Light Exposure

摘要

Coatings, particularly wood coatings, are typically utilized to provide beautification and protection to a substrate. Beautification is normally accomplished through adept color styling generally through accentuation of the wood grain with transparent stains and/or semi-transparent stains, or by application of an adeptly styled and designed opaque coating system, combined with a clear or opaque coating of excellent flow, leveling, clarity/patina, and appearance. Protection of the beautified article may be accomplished by the application of a clear or translucent coating system having physical properties such that environmental and or use stresses that the item may be exposed to are sufficiently resisted to maintain the beauty and functionality of the item. The coating protection property is dependent upon the coating having adequate and uniform film build, proper material or physical properties, combined with the longevity or durability of such physical properties. The coating beautification property is dependent upon the designed color and/or effect of the coating system, the coating having excellent flow and leveling, and, particularly for wood finishes, the coating system having excellent finish clarity or patina. Both the coating beautification and protection properties are highly dependent upon the quality of film formed.