Many harmful foam will be produced in the process of industrial production, and defoamers need to be added. And how to achieve the best defoaming effect during the operation of using defoamers?
Defoamer can achieve the effect of foam breaking, defoaming and reducing surface tension to disperse harmful foam through the active ingredients in the chemical properties of silicone oil outside hydrophobic particles, which is also an important reason for determining the foam suppression time of defoamer.
When it is necessary to add defoamer, it is often because the production process produces a lot of harmful foam, which affects the production. At this time, it becomes very important to select defoamer products with fast defoaming speed and long foam suppression time. From the perspective of price and scope of application, the price and scope of application of silicone oil defoamer are the first choice of many manufacturers, and the amount of silicone oil determines the consumption cycle of defoamer in use, which can greatly help the smooth production.
Usually, when we use defoamers, we need to dilute them, and during the dilution process, the filter often accumulates some viscous paste. This is because the use of some defoamer products can produce some insoluble particles. The particle size of the defoamer product determines the filtration resistance of the defoamer. If the particle size is too large or the defoamer is not stirred enough, it will affect the filtration effect, resulting in both defoaming and defoaming functions being affected.
The length of stirring time is also an important indicator of the defoaming ability of defoamers. Insufficient stirring can cause defoamers to aggregate and affect the defoaming effect.
Generally speaking, the defoaming effect of defoamers composed of hydrophobic particles, silicone oil, and emulsifiers varies in different systems based on their principles and composition. However, as long as the defoaming effect is tested well, the quality of the defoamer can be distinguished. The detection method is generally sampling detection. Add the same diluted defoaming product to the same measuring cylinder, shake and stir evenly, and then observe the defoaming time and effect to better distinguish which type of defoaming agent product is more suitable.
Of course, the actual operation process may deviate from the experimental results due to different production environments and dosages. Therefore, the use process still needs to be combined with the actual situation to achieve better defoaming effects.
