How to choose a defoaming agent suitable for your company’s products?

1. Consider whether the defoaming agent system is compatible with your own system?

First, you need to consider whether the defoaming agent system is suitable for your industry. Because defoaming agents are divided into oil-based and water-based defoaming agents, different defoaming agents are used in different industries.

Second, you want to consider how much alcohol or organic solvent is in the system. Because it is everyone’s consensus that alcohol has a defoaming effect, it sometimes has some interference effects.

2. Applicable pH range of defoaming agent. Strong acid and strong alkali environments have strict requirements on defoaming agents. This requires explaining the carrier environment to the defoaming agent manufacturer.

3. Consider the long-term effectiveness of the defoaming agent. Some defoaming agents start out very well, but become much less effective after being left for a while.

There are many influencing factors, at least two reasons:

1) The defoaming agent is compatibilized by the surfactant,

2) The main defoaming agent can be absorbed by the colloidal resin.

4. Defoaming ability under static conditions. When the liquid that generates bubbles flows back into the storage tank or directly into the packaging barrel, it can be defoamed quickly.

5. Defoaming ability under dynamic conditions

1) Dynamic defoaming effect in a relatively closed small space. Because it involves gas entering the bubble, the external air pressure decreases in a short period of time, which is more conducive to the generation and stability of the bubble. Wetting agents and emulsifiers have a shrinking effect on the gas in the bubbles. One is nothing, but tens of thousands or hundreds of millions can be considerable.

2) Open the dynamic defoaming effect. The single-sheet flexo printing machine does not have the glazing machine. The small space of the rubber roller and the ink roller is exposed and rotates at a high speed, causing bubbles to be generated very quickly.

6. Computer applicability

1) Temperature. Temperature changes lead to changes in surfactant foam stabilization and defoaming.

2)Customer habits.

The defoaming agent passed the test in the factory, but failed when it arrived at the customer’s place. We were puzzled. After visiting the site, we understood that it turned out that the customer was diluting the defoamer too much. For the same dilution, the decrease in foam stabilization of emulsifiers and wetting agents is inconsistent with the decrease in defoaming ability of defoamer.

By combining the above factors to make a comprehensive and balanced judgment, and being able to choose and use them from the perspective of your own personal needs, you can naturally judge the characteristics of different brands of defoaming agents, and you will be better targeted when making choices. It can avoid unnecessary impact on everyone’s use, and the value that can be applied can be more comprehensively displayed, giving full play to more comprehensive advantages and effects of use.