International. Iranian scientists studied the type of reinforcement and its behavior in nanocomposite coatings when scratches occur on vehicles.
Nanocomposite coatings can be used in the automotive industry as transparent final paint layers.
The researchers analyzed the behavior of the macrostructure, microstructure and scratching of the coatings and compared them with pure polyacrylic polymers. The behavior of scratches was evaluated based on ASTM G171, as well as through common industrial tests, such as pencil hardness.
The results revealed that nano-alumina coatings have better scratch resistance, while "nondetonation nanodiamond" coatings showed the worst resistance – even lower than pure polyacrylic polymers.
The full research is contained in a paper called the "Journal of Coatings Technology and Research" which you can access here.
