Comparative analysis of protective coatings of car paints

摘要

The article presents the results of tribological tests aimed at evaluating the resistance of protective layers of car paints to abrasive wear using the ball-cratering method. Substance1 and substance2 was applied by spraying it on previously prepared (in accordance with car body paint practice) samples. The tests were carried out on unprotected samples and samples with several types of protection using ceramic-based substances, which were produced using nanotechnology. The experiment was planned using Taguchi methodology. First, preliminary tests were conducted in order to build a orthogonal array. Then, using an ETA function, the optimal parameters for the actual experiment were determined. The results of the experiment show that the fifth group of samples (coated with four layers of substance2 and one layer of substance1) produced the worst results. Using this type of protective layer makes the coating more susceptible to frictional wear than not using any type of protection.