6.4 Versatile Self-Crosslinking Polyurethane Dispersion for Low VOC Coatings Across Multiple Markets
(Room 240-242)
10 Apr 18
11:00 AM
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11:30 AM
Tracks:
Session 6: Polyurethanes I
A low MFFT, self-crosslinking aliphatic polyurethane dispersion (PUD) has been developed. It can be used in low VOC formulations and combines good appearance, film formation and toughness with excellent hardness and abrasion resistance. In this study, we have evaluated the self-crosslinking PUD in different applications; from high performing wood coatings to protective coatings for rigid plastics and as a top coat for metal. In the paper to follow, we will demonstrate the application properties of this resin such as its hardness development, resistance to chemicals, adhesion, weathering etc. and thereby validate the versatility of this resin in several applications. We have also assessed film formation and mechanical properties of the PUD through microscopic and DMA analyses and will discuss how these influence the performance of the coatings.