The time that is required to produce a homogeneous suspension of particles in the dispersion medium using an oscillatory shaking machine equipped with several containers is measured. Not only can small quantities of the millbase with the same composition be tested (as with other types of apparatus), but various millbases can also be tested under the same conditions. A low-viscosity alkyd resin system of the stoving or oxidatively drying type can be used as a test medium. For standards, see Table 1.1 (“Ease of dispersion: Oscillatory shaking machine”).
Dispersing Behavior in Paint Systems Low-Viscosity Media
12 сентября, 2015 Pokraskin