Scratch resistant, soft haptic coatings for automotive interiors

Paper #:
  • 2017-01-0505

Published:
  • 2017-03-28
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Abstract:
Polyurethane dispersions (PUDs) have seen rapid growth in recent years as alternatives to their solvent based analogs. They offer the advantages of enabling low VOC formulations while providing superior appearance and mechanical properties. Polyurethane-acrylic hybrids combine the advantages of a polyurethane dispersion with the benefits of an acrylic emulsion. This synergistic combination offers properties such as good hardness development and chemical resistance in addition to enhanced mechanical properties. In this paper, we discuss new PUD-acrylic hybrids that are NMP and solvent free, have a pendulum hardness of 100 oscillations compared to a standard acrylic emulsion that has 80; and offer excellent scratch and abrasion resistance equivalent to that of an acrylic system. In addition to these, the new polyurethane dispersions provide good haptic qualities and have excellent adhesion to plastic substrates such as ABS, PC, PMMA and PVC. These attributes make the PUDs valuable for transportation and automotive interior applications.
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