Лако-красочные материалы — производство

The refractive indices of rutile and anatase are outstanding (n = 2.80 and 2.55, respec­tively). This is even higher than the refractive index of diamond (n = 2.42). Even after incorporation in a wide range of binders, the relative refraction coefficient (refraction index of pigment / refraction index of matrix) is typically between 1.5 and 2. The scattering power depends on the particle size, and for TiO2 it is at a maximum at a particle size of 0.2 pm (Mie’s theory) [1.33]. The scattering power also depends on the wavelength; smaller TiO2 pigment particles scatter light of shorter wavelengths more strongly and therefore show a slight blue tone, while larger particles exhibit a more yellow tone.

2.1.5.2