2020 Volume 25 Issue 1 Pages 105-114
In previous studies, the analysis of solid blue automotive paints using scanning electron microscopy with energy dispersive X-ray analysis (SEM/EDX) was reported. The X-ray intensity ratios of ClKα/TiKα and CuKα/TiKα in solid blue model paints have liner relations with the weight ratio of 8 kinds of phthalocyanine blue pigments to titanium white pigment and these ratios are useful to discriminate solid blue automotive paints.
In this study, green model paints that were manufactured by using 2 kinds of phthalocyanine green pigments and titanium white pigment were supplied from a paint manufacture and were analyzed by SEM/EDX.
Cl, Cu and Br were originated from chlorinated and brominated copper phthalocyanine. Ti was originated from titanium dioxide. And it was indicated that these X-ray intensity ratios of ClKα/TiKα, CuKα/TiKα and BrKα/TiKα in the model paints have liner relations with the weight ratio of green pigment to white pigment. Furthermore, the X-ray intensity ratio of ClKα/CuKα and BrKα/CuKα in model paints showed chlorinated and brominated copper phtalocyanine.
