Many people I don’t understand, the foam in daily life is short-lived and easy to disappear, so what is the significance of the existence of defoaming agent? Why still use it? Next, let the editor of Shanghai Kaiyin Chemical explain it to you.
ActuallyDefoaming agentsare mainly used in industrial production environments. Bubbles generated in industry are different from daily life. They are mass-produced and gathered together, and seriously hinder production progress and product quality, bringing huge trouble to industrial production. Therefore, it is urgent for industrial manufacturers to solve the foam problem.
DefoamerStrictly speaking, it refers to a reagent used to remove bubbles, not a certain product. Since the foams produced in different industries have different causes and properties, the defoamer used in different situations is The reagents are also different.
Defoaming agents can be roughly divided into three categoriesmineral oil, silicone and polyether.
Mineral oil defoamersusually consist of a carrier, a material with low surface tension that acts as a carrier and diluent, and an active agent. The active agent inhibits and eliminates foam.
Silicone defoaming agents generally include polydimethylsiloxane, etc., which have poor solubility. But it has the characteristics of rapid defoaming and good foam suppression at room temperature. However, there will be delamination, slow defoaming speed and poor foam suppression effect at high temperatures.
Polyether defoamerhas the characteristics of long foam suppression time, good effect, fast defoaming speed, and good thermal stability. It includes polyoxypropylene epoxyethylene glyceryl ether. In some food processing industries, it is used in the production processes of vegetable beverages, soy products, sucrose, etc.
The above is used The reasons and applications of defoaming agents, I hope it will be helpful to everyone.
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