Alüminyum yüzeylere uygulanan su bazlı ve solvent bazlı boyaların çevresel etki ve dayanımlarının incelenmesi
Özet
In this study, two different types of polyurethane-based commercial paints, solvent and water-based, were investigated. Among the components of both types of paint, the negative effects on human health and the environment have been proven by research, and the amounts of volatile organic compounds (VOCs) have been determined. In the analyzes made for the paints used in the topcoat application, while the total amount of VOC was 116 g/L in water-based paint, this amount was found as 464.4 g/L in solvent-based paint. In the filler primer application, there was a difference of more than 11 times between the VOC contents of water and solvent-based paints, and the values of 31 g/L for water-based paint and 346 g/L for solvent-based paint were obtained. On the other hand, although the amount of VOC was low, in the corrosion and adhesion-pulling tests, it was determined that the corrosion resistance and adhesion strength of water-based paints were lower than solvent-based paints. Kaolin, a type of clay, was used to increase the adhesion strength of water-based paints. It has been determined that while kaolin is added to water-based paints as 5% by mass, it does not have a negative effect on the gloss value, but when it is added as 10%, it reduces the gloss value. When the adhesion strength of the paints was examined, unclear effect was observed in solvent-based paints containing 5% kaolin by mass, while it was determined that the same amount of kaolin content increased the adhesion strength of water-based paints by 67%. Despite this improvement, it was found that the