The effect of additives on the quality of dispersion and physical properties of an automotive coating pigmented with TiO2

摘要: The effect of additives on the degree dispersion a TiO2 pigment in an automotive coating layer and consequential effects its mechanical surface topographical properties were investigated. was incorporated into polyester–melamine polymer solution water/n-methylpyrrolidone vehicle with aid four different dispersants over range loading levels up to volume concentration (pvc) 50%. quality evaluated using scanning electron microscopy for coatings formulated dispersants. Two found produce high degrees dispersion, while remaining two yielded large aggregates. Surface smoothness gloss cured correlate directly dispersion. investigated tensile tests which revealed that, loadings above 30% pvc, strength correlated ...