Scratch Resistant, Soft Haptic Coatings for Automotive Interiors

Paper #:
  • 2017-01-0505

Published:
  • 2017-03-28
Citation:
Chavannavar, A., "Scratch Resistant, Soft Haptic Coatings for Automotive Interiors," SAE Technical Paper 2017-01-0505, 2017, https://doi.org/10.4271/2017-01-0505.
Author(s):
Affiliated:
Pages:
9
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 chemical 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 and PVC. These attributes make the PUDs valuable for automotive interior and exterior application specifically for plastic components.
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