Abstract
Replaced with the conventional thermosetting type solvent coating system as paint specification of the aluminium materials for the construction exterior, basic properties, accelerated weathering tests and the outdoor exposure tests being done from 2008 estimated the powder coatings which attracts attention as an eco-friendly paint system. In the basic property examination, there are not the conventional coating system and great difference and it was checked that there is no performance top problem. Moreover, by accelerated weathering tests or outdoor exposure tests, while weatherability equivalent to a solvent system fluoroplastics coatings were checked, a fluoroplastics powder coatings, When no less than three years passed depending on exposure environment, it was not concerned with the resin system but it turned out that a gloss fall is remarkable, and FT-IR analysis was conducted for the degradation coat, and the degradation mechanism was investigated. As a result, although it did not result in the mechanism elucidation, it was suggested by the photocatalytic reaction of titanium oxide which is paints that paint resin is carrying out oxidation degradation, and it decided to evaluate the fluoride and polyester hybrid powder coating system which can expect the improvement effect by (Part 2) by it.
