We all know that cleaning is mainly to clean the impurities, dirt, and oil stains on the surface of the material, we should all know that the emergence of foam in the cleaning process is very common, and a small amount of foam can often help us clean, but in the cleaning process because of the cleaning process, inevitably there will be a large number of difficult to eliminate the foam by itself when using defoamer for cleaning agent to solve.
1. Chemical effect
When our defoamer is added to the cleaning solution, our defoamer will not affect the cleaning performance of the cleaning solution at the same time with the reaction, it can have the acid in the foam into unstable stearic acid, and due to the addition of defoamer for cleaning agent calcium ions, magnesium ions, and other substances can effectively make its foam become insoluble in water transient solid, resulting in the rupture of the foam.
2. Reduce the strength of the bubble film and surface tension
Defoamer for cleaning agent characteristics itself has a low surface tension, its surface tension to be lower than the surface tension of the foam film, so that the foam because of all kinds of starting agents, and foam with high surface tension to remove, resulting in loss of foam stability and the ability to self-recovery, the foam also accelerated the rupture.
3. Capacitating surface active substances lead to foam rupture
Some low molecular substances in the defoamer can be fully mixed with the solution, such as ethanol, propanol, octanol, and other such low molecular substances, which not only can make the bubble surfactant soluble and thus reduce the effective concentration, but also reduce the degree of compactness between the molecules of surfactant, thus weakening the stability of the foam, and finally achieve the effect of defoaming.
