Foam Nemesis - Defoamer Antifoam Mechanism
Industrial production process due to the formulation and process reasons, it is inevitable that foam problems easily occur. The foam generated by the industrial production of environmental pollution, system operation, product quality and other negative impacts, therefore, for the foam problem in the industrial production process, the need to take appropriate anti-foaming measures, usually common industrial solution is to add defoamer & antifoam for defoaming and foam inhibition treatment.
Defoamer chemical is widely used in industrial production, with a small amount of addition, defoaming effect is obvious characteristics. Its action mechanism mainly includes reducing surface tension, destroying bubble film and changing liquid viscosity and other aspects. Through these roles, antifoam additive can effectively eliminate the generation and stabilisation of foam, thereby improving industrial production efficiency, product quality and reducing energy consumption.
Antifoam Mechanism Of Defoamer
Reducing Surface Tension
The primary function of an antifoam agent is to reduce surface tension. When an antifoam agent is added to a foam system, it rapidly disperses and reduces the surface tension of the foam system. This reduction of surface tension can make the elasticity of the foam film drop to a very low level, and the part of the reduced surface tension is strongly pulled and extended in all directions, which makes the bubbles easier to be deformed and ruptured.
Destroy The Bubble Film
Another important role of defoaming agent is to destroy the bubble film. Defoamer has good permeability and wettability, can quickly penetrate into the bubble film, and destroy the structure of the bubble film. This destructive effect can make the strength of the bubble film reduce, so that the bubbles are more likely to rupture. At the same time, the defoamer can also interact with the surfactant in the foam film to reduce its concentration, further weakening the strength of the foam film.
Changing The Viscosity Of The Liquid
Defoamer can also change the viscosity of the liquid, which affects the stability of the foam. Defoamers can reduce the viscosity of the liquid, making the foam easier to flow and deform. At the same time, defoamers can also change the viscosity of the liquid surface, making it easier for the foam to break up. This effect of changing the viscosity of the liquid makes the discharge speed and gas diffusion speed of the foam liquid film faster, reduces the life of the foam, and effectively eliminates the generation and stabilisation of the foam, so as to achieve the purpose of defoaming.
In the industrial production process, the need to choose the appropriate antifoam agent according to the specific situation. Different industrial production processes and process conditions will have different requirements for defoamers, so it is more important to choose a professional defoamer manufacturer to carry out the precise adaptation of customised solutions to ensure that the defoamer can effectively play a role in avoiding the purchase of defoamers can not solve the problem of embarrassment.
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