Destruction of protective-decorative coatings for car bodies under the influence of solar radiation

  • Danuta Kotnarowska Kazimierz Pulaski University of Technology and Humanities in Radom
  • Dariusz Stanisławek Kazimierz Pulaski University of Technology and Humanities in Radom
Keywords: destruction, polymer coatings (lacquers), ageing with UV radiation

Abstract

It was stated on the basis of carried out accelerated investigations that UV radiation influence had a significant impact on destruction of acrylic coatings surface layer. The brittleness of surface layer increased with ageing time flow. As a result fillers and pigments particles, losing adhesion to the acrylic resin, issued from the coatings superficial layers which led to coatings thickness as well as gloss decrease. It caused also substantial increase of coatings surface roughness, evaluated on the basis of Ra, Rz and Rt parameters. A deterioration of coatings decorative properties was observed too due to their colour change and local discolorations.

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Published
2018-12-31
Section
Articles