Particle Dispersion in a Paint Film

摘要

Degree of particle dispersion in a liquid paint or dry paint film affects practically every important property of these systems,including viscosity,touch-up,rub-up, scrub resistance, porosity,gloss,appearance of defects,and,for opacifying particles like TiO_2,hiding power and tinting strength.Numerous methods have been devised to quantify degree of dispersion,but most are comparative rather than absolute,especially those that pertain to dispersion in the dry film (e.g.,comparing hiding power to a standard).