Haiti Differences in water-based mineral oil Free of silicone defoamers(1)

Defoaming mechanism of hydrophobic solid particles
Hydrophobic solid particles in the foam system will first attract the hydrophobic end of the surfactant, making the hydrophobic solid particles become hydrophilic, thus reducing the concentration of surfactant in the foam film and promoting the foam to burst. This defoaming mechanism cannot explain the action mechanism of other defoaming agents, which is too one-sided. [4] Other reasons for the bursting of foam are the impact caused by the expansion of defoamer, the solubilization of surfactant and the collapse of electrolyte, and the bursting of electric double layer on the liquid film surface. [4] It can be seen from the above defoaming mechanisms that each defoamer has different emphasis on different foam systems, but defoaming is achieved by destroying the stability factors of foam

high

Leveling

Haiti  Advantages of water-based mineral oil in water-based paint systems:

PU

Organosilicon type Free of silicone defoamers can reduce tension on the surface of coatings, have excellent defoaming and foam inhibiting capabilities, and have little effect on the gloss of the coating film under different environmental factors. However, when not used properly, they can cause poor recoating performance, uneven surface such as film shrinkage, and polyether type defoamers have high compatibility requirements and weak defoaming capabilities.

The water-based mineral oil Free of silicone defoamershas a fast defoaming speed and a foam inhibiting effect of up to several hours, which is also well matched with the foam system. It can be carried out in harsh environments such as high temperatures and strong alkalis, with good results. After use, there will be no phenomena such as oil bleaching and demulsification