Influence of Mechanical Factors on Surface State of Acrylic Coatings with Nanofillers

Abstract

In the paper, properties of conventional acrylic coatings are compared with those of the same coatings modified with copper nanoparticles. The mass fraction of nanofiller was 3.5 % and the mean diameter of particles did not exceed 66 nm. Modification of acrylic coatings with copper nanoparticles resulted in an increased mechanical wear resistance of the coatings because both erosive wear resistance and scratch resistance increased. This was first of all a result of higher coating hardness (that increased by 7 % as a result of modification), lower coating surface roughness (Ra parameter decreased over three times) as well as higher elasticity modulus of modified coatings.